EXPERIMENTAL ANALYSIS OF TWO-PHASE FLOW THROUGH CYLINDERICAL OBSTRUCTION IN VERTICAL PIPE |
Author : Isam Mejbel Abed, Rafel Hekmat Hameed and Laith Jaafer Habeeb |
Abstract | Full Text |
Abstract :The two-phase flow through vertical transparent pipe is investigated
experimentally. The experimental rig designed to achieve the measurements of
pressure drop for various combinations of phases, flow pattern regimes such as
bubbly, slug and annular, with various range of water and air volumetric high speed
camera . The air volumetric ranged from 8.3334 L/min to 25 l/min, while the water
volumetric ranged from 5 l/min to 20 l/min and of 50 mm internal diameter along 1 m
length. The measured of the pressure will be done using four pressure sensors along
test pipe. The measured pressure values were used for different air volumetric and
different water volumetric. It has been found that the measuring of pressure gradient
through the distance of rig pipe are inversely changed with air volumetric. In
addition, it has been analyzed the flow pattern through obstruction, it has showed one
phase flow, bubbly and slug flow. |
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CUSTOMER EXPERIENCE MANAGEMENT: AN EMPIRICAL EVIDENCE OF FUNCTIONAL CLUES AND ENGINEERING STUDENT’S LOYALTY |
Author : BORISHADE TAIYE T, KEHINDE OLADELE J., OGUNNAIKE OLALEKE, WORLU ROWLAND E, IYIOLA OLUWOLE, DIRISU JOY |
Abstract | Full Text |
Abstract :This paper empirically investigates the influence of functional clues as a strategy
of customer experience management on
context of higher education in Nigeria. The basic purpose of
examine if the application of marketing strategies can be applied by higher institutions
in order to satisfy their student and turn them to advocate of their brands/service. To
achieve this objective, a total of 215 copies of the question
engineering student of a private university adjudged to be the best in
stage sampling techniques were employed in this study.
Regression CATREG analysis, the study found that functional clues
influence on engineering student
study therefore recommended among other things that the university management
should adopt customer experience management as a strategy to build studen
and also concentrate their efforts on the improvement of functional clues by focusing
more on the development of the competences of their lecturers and implement the
strategy in order to gain repeat patronage of their students for further studies |
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EVALUATION THE EFFECT OF TITANIUM CONTENT ON 2024 ALUMINUM ALLOY-1.5% CARBON NANOTUBE COMPOSITE |
Author : Talib Abdulameer Jasim, Hussein F. Mahdy, Ahmed Saleh Al Graite, Ali H. Hallem |
Abstract | Full Text |
Abstract :Aluminum alloy 2024 is widely used in frame of aircraft. Carbon Nanotubes
(CNTs) used recently as a reinforcement material for 2024 aluminum alloy. In this
research 2024-1.5%CNTs hybrid composite was prepared by traditional casting.
Titanium (Ti) was added in (0.2, 0.4, 0.6 and 0.8%) to 2024-1.5%CNTs composite.
The chemical composition was investigated by optical emission spectroscopy
(SPECTROMA). Scanning electron microscope and light optical microscope were
used for microstructure examination. EDS used for evaluation of phases and
intermetallic compounds. The microscopic examination showed that the grain size
decreased with increasing Ti content in presence of CNTs and the microstructure be
more regular with increasing Ti content. The EDS results that intermetallic
compounds and phases precipitated at the grain boundaries and near grain
boundaries.
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EXPERIMENTAL INVESTIGATION OF SOME PROPERTIES OF EPOXY REINFORCED BY EGG SHELL PARTICLES |
Author : RUAA HAITHAM ABDEL-RAHIM and REEM ALAA MOHAMMED |
Abstract | Full Text |
Abstract :The egg shell powder used as a reinforcing material in composite materials
because of their good mechanical properties and environmentally friendly.
research, some experiments were carried out to the specimens
properties such as tensile strength, elongation
flexural strength and water absorption. Polymer composite was fabricated by hand lay
up to with (4, 8, 12 and 16) w
was found that the maximum values of mechanical properties |
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SECURE LOCATION MAP AND ENCRYPTION KEY BASED ON INTELLIGENCE SEARCH ALGORITHM IN ENCRYPTION AND STEGANOGRAPHY TO DATA PROTECTION |
Author : Alaa Kadhim Farhan, Rasha Subhi Ali, Sura Mazin Ali |
Abstract | Full Text |
Abstract :In the digital world, data is that the heart of computer communication and world
economy to make sure the safety for this data it is desired secure transmission of
confidential data that gets an excellent deal of attention. Therefore; it’s necessary to
use effective methods to reinforce information security. Many strategies are coming up
to shield the information from going to unauthorized person. Steganography and
cryptography are 2 completely different mechanisms for information security. The
main purpose in cryptography is to create message idea unintelligible, whereas
steganography aims to hide secret message. Digital-pictures are wonderful carriers of
hidden information. Combining these two methods is a topic of high relevance since
secure communication is inevitable for mankind. In this paper, a method for
protection data was proposed comprises a hybridization between cryptography and
steganography. In the proposed approach particle swarm optimization algorithm
(PSO) was used in both methods(encryption and steganography).The PSO algorithm
was used in key generation process for data encryption and in generating hidden
locations for data hiding. Also, the Least Significant Bit (LSB)was utilized to add the
encrypted data into LSB of the cover and the PSO was utilized to specify the location
of hiding data. The data will be encrypted by using stream cipher method. The image
will be transmitted and received through the internet and the extraction process would
be exactly reveres for hidden process. Experimental results illustrate that the visual,
and therefore applying mathematics values of the image with encrypted information
before the insertion represented as the same as the values after the insertion so that
the reduction in the possibility of the confidential-message to be detected and allows
secret communication. The effectiveness of the projected technique has been
calculable by computing 5 statistical tests, 16 NIST tests for the generated key andencryption algorithm respectively; also, the steganography statistical tests such as
Mean square error (MSE), Peak Signal to Noise Ratio (PSNR), Average Difference
(AD), Maximum Difference (MD), Normalized Cross-correlation (NC), Mean
Absolute Error (MAE), Normalized Absolute Error (NAE), Structural Content (SC),
Signal-To-Noise Ratio(SNR), Similarity Measure (SIM) and Unified average changing
intensity Measure (UACI) are computed |
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EXPERIMENTAL AND THEORETICAL STUDY OF HEAT PUMP PERFORMANCE ENHANCEMENT BY USING A NANOREFRIGERANTS |
Author : Nabil Jamil Yasin, Kadhum Audaa Jehhef, Ayad S. Abedalh |
Abstract | Full Text |
Abstract :The effect of Al2O3 nanoparticles on the performance of heat pump to improve its
operational efficiency was presented in this theoretical and experimental study. In the
experimental work the heat pump charged with R600a inclusive with 0.06 % vol. of
Al2O3 and used as a nanorefrigerant. Three different nanoparticles size 20nm, 40 nm
and 50 nm of Al2O3 have been used for the preparation of nanolubricant in the present
study. The theoretical approach includes simulations modeling the heat pump
components such as compressor, evaporator, condenser and an expansion valve by
computer of the heat pump system by using commercial MATLAB. The results showed
that the addition of nanoparticles to the refrigerant will improve its characteristics of
refrigeration system heat transfer and thermal properties. Also, it showed that the
using nanorefrigerant in refrigeration system will work normally at all conditions
employed in this work. The experimental results found that the heat pump coefficient
of performance increased by 19.1%, but the power consumption reduced by 21.8 %
when using a mineral oil with 20 nm nanoparticles size of Al2O3 instead of the
conventional mineral oil only. Finally, the refrigeration effect increased and work of
compressor decreased by using a small nanoparticles size of Al2O3 |
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EFFECT OF MANUAL METAL ARC WELDING PARAMETERS ON CORROSION BEHAVIOUR OF STAINLESS STEEL |
Author : : Nabil Jamil Yasin, Kadhum Audaa Jehhef, Ayad S. Abedalh |
Abstract | Full Text |
Abstract :In this work, effect of welding electrode, welding current and corrosion media on
corrosion behaviour of three kinds of stainless steel (AISI 304, AISI 316 and AISI 410)
was investigated. Welding was performed by manual metal arc welding process using
three types of welding electrode (E308L, E316L and E310). Corrosion behaviour of
the welded joints was examined in two chloride mediums (3.5%NaCl and 3.5%KCl).
The results showed that welding electrodes E316L and E310, which contain Mo and
Ni respectively, increase corrosion resistance in of the weldment. The increment in
heat input by increasing welding current caused reduction in corrosion resistance by
facilitating carbon diffusion and formation of chromium carbides in the weld area. It
was also found that corrosion rate of 3.5% NaCl was more aggressive than 3.5% KCl |
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PREPARATION OF POROUS CERAMIC MATERIAL FROM WASTE GLASS AND CALCINED KAOLIN USING YEAST AS PORE FORMING AGENT |
Author : Majid M. Shukur, Firas J. Hmood, Shahad J. Jasim |
Abstract | Full Text |
Abstract :Production of light-weight porous ceramic media from metakaolin and waste glass
powder with sodium silicate as foaming agent in batch1 and without sodium silicate in
batch 2 was investigated. Different weight percentages of yeast (0.1-0.5) as pore
forming agent have been added to both batches. All samples were formulated by wet
milled, dried, shaped and fired at 700°C for batch 1and at 850°C for batch 2.
Chemical and mineralogical analysis, identification and calculation of crystalline to
amorphous ratio phases by XRD, microstructure and mechanical and physical
properties were investigated to specify the resulting porous article. The predominant
closed porosity is found in batch 1 whereas open pores are prevalent in batch 2. The
size of pores ranges from 3.794mm to 58µm in batch No. 1 and from 67.5 µm to 1.6
µm in batch No. 2 (millimeter to sub-micron) with approximately spherical shape
were found in both batches.
|
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ORDER MANAGEMENT SYSTEM WITH ENTERPRISE SERVICE BUS IN TELECOMMUNICATION INDUSTRY |
Author : Michael Simon and Abba Suganda Girsang |
Abstract | Full Text |
Abstract :Communication is something that is in the need of every people in the world, and
as the customers to the telecommunication industries are expecting a good service
from the corresponding company. This matter is what drive the telecommunication
industries to upgrade their ser-vices to accommodate the orders of the customers.
Thus, Service Oriented Architecture (SOA) with the Enterprise Service Bus (ESB) is
the solution for the problem, because it is able to be flexible and follows the ever
changing business process and needs of the customers. With the micro services, the
system will be able to be modified partly on what needs to be added or fixed, it does
not require the service to be re-built from scratch. The implementation of the new
system based on ESB is a new approach that can be considered for ordering system,
the implementation in this case is able to meet the management’s expectation of
success rate |
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ENGINEERING APPLICATIONS OF NUMBER THEORY |
Author : Veena Narayanan, Audhithya S V and Srikanth Rm |
Abstract | Full Text |
Abstract :The number theory is a branch of mathematics which is primarily dedicated to the
study of integers. The number theory, as such, is less applied in engineering compared to
calculus, geometry, etc. The problem was that it could not be used directly in any
application. But, the number theory, combined with the computational power of modern
computers, gives interesting solutions to real-life problems. It has many uses in various
fields such as cryptography, computing, numerical analysis and so on. Here, we focus on
the applications of the number theory about engineering challenges. |
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EFFECTS OF MgO WT.% ON THE STRUCTURE, MECHANICAL, AND BIOLOGICAL PROPERTIES OF BIOACTIVE GLASS-CERAMICS IN THE SiO2, Na2O, CaO, P2O5, MgO SYSTEM |
Author : Batool Abd Aladel, Israa K.Sabree, Shaker J. Edrees |
Abstract | Full Text |
Abstract :Bioactive glass-ceramics used as a replacement material for bone tissues because
of its bioactivity, compatibility, and abilities to form a crystallized hydroxyapatite
(HA) bonding layer which has a similarity in composition and structure to the
inorganic component of bones mineral phase. The major objectives of this research is
estimating the effects of using MgO as an additive on the property of bioactive glass
ceramic in 45SiO2, 24.5 Na2O, 6 P2O5, (24.5-x)CaO, X MgO where X= 0,1,3 and 5
wt.%. Bioactive glass ceramic was made by traditional glasses melting techniques at
1200°C for 2hr. Compressed sample sintered at (850)°C, the X-ray diffraction test
confirmed the formations of (Na2CaSi3O8) and (Na2Ca2Si3O9) phases in the
structure of pure bioglass-ceramic and with (1wt.%) MgO, while (Na2CaSiO4) and
CaMg(SiO3)2 phases were present in the structure of bioglass-ceramic with
(3wt.%)MgO, and CaMg(SiO3)2 phase in the structure of bioglass-ceramic with
(5wt.%) MgO. Results of mechanical and physical studies showed that increasing
(MgO wt.%) in glass structure led to improving the bending strength, compressive
strength, microhardness, and density associating with decreasing in porosity. FTIR
confirmed the formations of the Si-O-Mg bond. The biological test was done by
immersion the sample in (SBF) simulated body fluid for (21 days). XRD, SEM and pH
tests revealed that appetite layers made on the samples surface, giving an evidence of
their bioactivity. As general the results of the present study demonstrate that partial
replacements of CaO by MgO in 45S5 glass ceramic improve the mechanical
properties without altering the bioactivity suggesting that glass ceramic was suitable
for the biomedical applications |
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MODELING AND OPTIMIZATION OF BRAZING FOR AA 6061/ AISI 304LUSING GREY RELATIONAL ANALYSIS |
Author : Ahmed O. Al- Roubaiy, Saad Hameed Al-Shafaie, Wurood Asaad M |
Abstract | Full Text |
Abstract :In this paper, joining of aluminum alloy 6061 as annealed and austenitic stainless
steel AISI 304L was carried out by furnace brazing at (620 and under protection of
argon gas. Lap joints of AA 6061/AISI 304L were investigated with AlSi12, and
AlSi10Cu4 filler alloys in form of paste using different brazing times (5, 10, 15, and 20
min). The optimum shear strength of the joint reached to (3.36 KN) at (10 min) using
AlSi12 filler alloy. While, the maximum shear strength of the joint with AlSi10Cu4
filler alloy reached to (2.59 KN) at (15 min). In addition, microhardness of the
interfacial layer of the joint with filler AlSi10Cu4 was higher than the microhardness
value of the interfacial layer of the joint with AlSi12 filler alloy at the same brazing
conditions. For each filler, at brazing time (5 min), lap joints were weak with
minimum shear strength. Finally, the corrosion behavior of brazing joints in 3.5%
NaCl was studied to evaluate the rate of corrosion for brazing joints. The minimum
corrosion rate is achieved (0.005209mpy) (1.68 by (10 min) using AlSi12 filler
alloy. Grey relational analysis (GRA) based on Taguchi method was applied using
two factors, brazing time (T) and filler type (F) with four levels. The results showed
that the variation of brazing time is the most affective parameter on the shear force,
corrosion rate, and microhardness of the interfacial reaction layer. While, the type of
filler alloy is slightly affective on the output response. In addition, these results
manifested that the Taguchi based grey relational approach improves the properties
of the output response of the joined AA 6061 and AISI 304L. |
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NUMERICAL SIMULATION OF LAMINAR INCOMPRESSIBLE DRIVEN CAVITY FLOW IN A L-SHAPE DOMAIN |
Author : Dr. Abbas Alwi SakhirAbed |
Abstract | Full Text |
Abstract :Two-dimensional laminar incompressible flow governing equation is solved
numerically to gain insight into flow separation and recirculation of flow processes in
an L-shape lid driven cavity. Stream function vorticity formulation of Navier
equation is solved with clustered grids on physical domain. The hydrodynamic study is
carried out for different Reynolds number. It is found that at Re
center becomes independent of Reynolds number. Velocity contours are presented for
different
Reynolds number. The wall vorticity is sensitive in the upstream of the moving lid.
The skin friction coefficient is less affected at deeper cavity location |
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EFFECT OF ZINC OXIDE LOADING LEVELS ON THE CURE CHARACTERISTICS, MECHANICAL AND AGING PROPERTIES OF THE EPDM RUBBER |
Author : Salih Abbas Habeeb, Zoalfokkar Kareem Alobad and Muayad Abdulhasan Albozahid |
Abstract | Full Text |
Abstract :This paper attempts to show that,
activated by adding different loading levels of zinc oxide (ZnO).
to mix and distribute the elements of the rubber compound. MV
rheometer employed to determine the properties of th
6 min. The curing process carried out using the hot press at a temperature of 180°C
and pressure of 10 bars. Results show that the addition
hundred parts of rubber (phr)
scorch time ,curing time with
particularly at 2 and 4 phr
modulus of elasticity at 300% elongation, hardness and compressio
phr represent the best loading level of the ZnO, which had more effect on the aging
and mechanical properties.
especially when the retention percentage |
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EXPERIMENTAL INVESTIGATION ON PERFORMANCE OF A COMPRESSION IGNITION ENGINE FUELLED WITH LINSEED (FLAX) METHYL ESTERS |
Author : K. Srinivasa Reddy, MD. Kalamulla, P. Sai Kishore, V. shanmukhpavan and Sai Krishna |
Abstract | Full Text |
Abstract :The present work particularly aims at assessment of performance in exhaust
emissions of linseed oil with diesel fuel in single cy
Due to higher viscosity levels and slight lower calorific value of the Linseed oil it can
be used with or without diesel blends
from the living organisms, plant
co2 via photosynthesis by producing polysaccharides, such as cellulose and
hemicellulose because they are extracted from the plant polysaccharides, co2 doe
exceed with the use of biofuels (combusted), which refers to the concept of carbon
neutrality. The results of the experiment showed that the performance of the engine on
linseed oil was slightly inferior to that on diesel fuel. The thermal efficiency
engine was lower and the brake specific energy consumption of the engine was higher
when the engine was fuelled with linseed oil compared to diesel fuel. The oxides of
nitrogen from during the whole range of experiment were lower than diesel fuel.
carbon monoxide, unburned hydrocarbon from the fuel was found higher than diesel
fuel during the whole experimental range |
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OPTIMISATION OF 3D PRINTING PARAMETER FOR IMPROVING MECHANICAL STRENGTH OF ABS PRINTED PARTS |
Author : Maisarah Mohamed Bazin, Mohamad Zulfadhli Mat Othman, Mahfodzah Md Padzi, Farizah Adliza Ghazali, |
Abstract | Full Text |
Abstract :Three-dimensional (3D) printer is a computer-aided manufacturing (CAM) device
that creates 3D objects. The principle of 3D printing involves a digital model which is
turned into a solid 3D physical object by adding the material layer by layer. The
objective of this study is to determine the optimum combination of a 3D printing
machine parameter setting, such as printing temperature, speed and resolution, to
produce the highest flexural strength. Taguchi Method and Analysis of Variance
(ANOVA) were applied to get the best process parameter combination and to identify
the most affective parameter on the flexural strength. The result from this study
demonstrated that the optimum setting for the 3D printer (Vagler V-821) machine had
printing temperature of 240 °C, printing speed of 30 mm/s and printing resolution of
250 µm. The result from the Taguchi Method and ANOVA concluded the most effective
effect on the flexural strength was printing speed, followed by printing resolution and
printing temperature. |
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INVESTIGATION THE PROPERTIES OF SILICONE RUBBER BLEND REINFORCED BY NATURAL NANOPARTICLES AND UHMWPE FIBER |
Author : SIHAMA I. SALIH, JAWAD K. OLEIWI and HAJIR MOHAMMED ALI |
Abstract | Full Text |
Abstract :Many faces are exposed to degradation, discoloration, changes in humidity. The
primary objective has improved some properties of
that used for restoring of
esthetic. In the present research different lengths chopped and continuous
high molecular weight polyeth
percentage (0.0, 0.2% and
0.2% Pomegranate Peels Powder (PPP)) for developing the properties of silicone
rubber used for the maxillofacial prosthesis applications.
physical properties were done on the all prepared samples
properties have improved when added 0.5% ratio of continuous UHMWPE fiber to
polymer blend nanocomposite (95%SR /5%PMMA: 0.2% Pomegranate Peels Powder
(PPP)) sample and this represent
composite sample. Therefore,
properties required for the applications of maxillofacial prosthetics |
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THE NEED FOR THE INTERNET OF LIFE (IOL) - A CLOUD ENABLED ARCHITECTURE FOR HEALTHCARE STAKEHOLDERS |
Author : SAGARIKA KAMATH, RAJESH KAMATH, APOORVA SHARMA and BRAYAL D’SOUZA |
Abstract | Full Text |
Abstract :Richardson (2006) defined ED crowding as patient occupancy at, or greater than,
the 75th percentile for a given time period.
the day into six 4-hour intervals. For
for the ED was calculated. If the ED was over 75% occupied, it was considered
crowded for the corresponding time interval.
Other researchers have based their conceptual definition on the Crowding
Resources Task Force of 2002 which states that crowding is a “situation in which the
identified need for emergency services outstrips available resources in the
ED”.2
According to the Task Force, this situation occurs when the number of ED
patients outnumbers the st
period.3 |
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VIDEO STEGANOGRAPHY USING LSB ALGORITHM FOR SECURITY APPLICATION |
Author : R. BanuPriya, J. Deepa, S. Suganthi |
Abstract | Full Text |
Abstract :The project proposes the enhancement of security system for secret data
communication through video file using adaptive data hiding with cryptographic
technique. A given input video file is converted into frame sequences and then
Encrypted the video using Chaos Encryption algorithm. And one of frame will be
selected to conceal the secret data for secured data communication. The proposed
technique also uses RC7 Encryption for encrypting a secret text data into cipher text
to avoid data hacking issues. After data encryption, the data hider will conceal the
secret encrypted data into the selected frame using adaptive LSB embedding
algorithm. Although encryption achieves certain security effects, they make the secret
messages unreadable and unnatural or meaningless. These unnatural messages
usually attract some unintended observers’ attention. The data hiding technique uses
the adaptive LSB replacement algorithm for concealing the secret message bits into
the image. In the data extraction module, the secret data will be extracted by using
relevant key for choosing the pixel coefficients and it will be decrypted to get original
data using encryption key. Finally the performance of this proposal in data encryption
and hiding will be analysed based on image and data recovery.
|
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INFLUENCES OF TEMPERATURE AND PRESSURE TO THE GREEN DEFECTS |
Author : TAN KOON TATT, NORHAMIDIMUHAMAD, CHE HASSAN CHEHARON and ABU BAKARSULONG |
Abstract | Full Text |
Abstract :Metal injection moulding has been recogni
parts with high complexity. In this study, an experimental run was carried out to
identify the influence of injections parameters
investigated are injection temperature, injection pressure and mould temperature.
Experimental tests were conducted on water atomi
vol% powder. Multi-component binder consisting PEG, PMMA and strearic acid
used. The standardise tensile
injections parameters. Injection moulding was carried out at temperatures and
pressures of 140–160°C and 550
exhibit pseudo-plastic behaviour. The experimental results showed that the flashing
and binder separations are the major defects. These defects are caused by the high
injection temperature and high injection pressu
defects such as distortions and cracking were observed. From the surface defects
point of view, the injection temperature of 150 °C,
and injection pressure of 550 bars
moulding |
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COMPARING OF NUMERICAL SCHEME TO THE METHODS EULER POLYGON HEUN AN ANALYTICAL METHOD |
Author : ALI FAHEM ABBAS ALOWAIDI and ALI JALAL ALI |
Abstract | Full Text |
Abstract :This paper describes the evaluation on numerical confusion over ternary regular
finite equations about methods |
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EXPERIMENTAL ANALYSIS OF STRESS DISTRIBUTION OVER A HYBRID COMPOSITE WITH A CENTRAL HOLE |
Author : Gopalakrishnan S, Surya Prakash R, Rahul R, Ajith Kumar K |
Abstract | Full Text |
Abstract :In this paper we have analyzed the stress distribution over a rectangular specimen
with hybrid composite material at its central hole. Using Vacuum bag technique the
material has been fabricated and it consists of carbon and glass fiber with epoxy. The
cross ply lamina arrangement with alternate carbon and glass has increased the
strength of the structure. This is because carbon properties are high compared to
glass. The cutouts made in typical aircraft and automobile components reduce the
weight and bulking load carrying capacity of the aircraft according to the weight
reduction law. Three specimens were used to carry out experimental investigations as
per ASTM D5766 in the universal testing machine. We have analyzed and compared
the results of the stress concentration in the rectangular specimen with a hole using
FEA |
|
A REVIEW ON AWARENESS OF SMART LEARNING RESOURCES FOR THE IMPROVEMENT OF STUDENTS IN MECHANICAL ENGINEERING |
Author : Dr. T. Venkata Rao |
Abstract | Full Text |
Abstract :The importance and concept of smart learning resources in libraries, especially
for mechanical engineering department is discussed. The awareness of smart learning
resources and the opinions of respondents on variable like NPTEL Video Courses and
LAN based Courses are analyzed. A survey of the proposed awareness on some of the
reputed selected colleges in Andhra Pradesh has been presented. |
|
THE EFFECT OF MG, CU ADDITION ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ROLLING AL-LI ALLOYS |
Author : Enass, Laith, Ali and Dr. Abdalwahid, K., Rajih |
Abstract | Full Text |
Abstract :Aluminum-lithium alloys used in the aerospace industry as structural components
and strengthened by age-hardening. This study aims to improve properties of Al-Li
alloys such as strength, behavior hot rolling and addition element, i.e. Mg and Cu to
this alloy. Several tests were carried out to evaluate the performance of alloy, such as
hardness, tensile, and microstructure by OP, SEM and XRD. Result showed that
addition 3.2% Cu to base alloy improve strength from (62MPa) to (78MPa) when
aging at 175°C.and improve hardness from (97.3 Hv) to (119.79Hv) At the same
temperature. But the improvement is great when addition 0.6% Mg to base alloy
improve tensile strength from (62MPa) to (124MPa) at the same time improved
hardness from (119.79Hv) to (152.96Hv) at the same temperature |
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STUDY ON MULTI-TASK ORIENTED SERVICE COMPOSITION AND OPTIMIZATION PROBLEM OF CUSTOMER ORDER SCHEDULING PROBLEM USING FUZZY MIN-MAX ALGORITHM |
Author : SUMA T and MURUGESAN R |
Abstract | Full Text |
Abstract :In a business world, handling multiple tasks with multiple enterprises practically
is common. Cloud manufacturing (CM) is one of the service oriented paradigm to
support for handling multiple tasks and multiple enterprises at the same time. The
service oriented cloud manufacturing integrates and distributes manufacturing
resources, transferring them into service for manufacturing industries as a
manufacturing service and manages the service centrally. In cloud manufacturing
platform, cloud manufacturing allows multiple users to request multiple services at the
same time access the task in parallel by submitting their requirements. In this paper
we consider the Customer Order Scheduling Problems (COSP) in cloud
manufacturing. Here scheduling plays dynamic role in cloud manufacturing since
multiple tasks for multiple users become chaotic for computing in cloud
manufacturing. Based on this idea, we worked on the process of Service Selection and
Optimization Scheduling Problem (SSOSP) for Small and Medium Manufacturing
Enterprises (SMMEs), which is an important issue in practical implementation on
cloud computing. We adopted mixed integer programming problem with mixed
composition structure for SSOSP. In mixed integer programming, cost, time and
quality are the main objective with incorporation of transportation time and
transportation cost along with manufacturing cost and time. Finding optimized
makespan of this SSOSP, we used fuzzy based min-max rule algorithm. The
experimental result shows the benefit of the proposed method and the result concludes
that the proposed algorithm can obtain high quality achievement with reasonable
computation time. |
|
ANALYSIS OF KNOWLEDGE ACCOMPLISHMENT OF AN UNDERGRADUATE ENGINEERING COURSE BASED ON ATTAINMENT OF COURSE OUTCOMES |
Author : Subramanya G. Nayak |
Abstract | Full Text |
Abstract :During the beginning of the course, an articulation matrix specifying the number
of hours for each course outcome and the evaluation scheme for all outcomes were
specified. Based on the marks obtained by students in first and second sessional tests,
assignments and end semester examination, normalized value of course outcome
attainment score were evaluated. Knowledge accomplishment of an undergraduate
course has been analysed based on individual CO attainment through normalized
marks for each CO – direct method / predefined rubric and conclusions were drawn
on attainment of course outcomes. |
|
A SHORT REVIEW: THE SITUATION OF PIRACY IN THE WORLD AND PROPOSED SOLUTIONS FOR PREVENTION |
Author : Quoc Tien Le |
Abstract | Full Text |
Abstract :Nowadays, piracy is not a concern of people working in maritime trade field only
or a concern of particular country. In the trend of strong globalization in the current
period, when commodity exchanges between countries around the world grow faster
than ever, threats to maritime security are truly an international problem. The
situation of piracy is always concerned because it directly affects the economy, the
safety of people. This article assesses the status of piracy at “hot area” such as the
Somali and Malacca Straits, thus analyzing the trend of activities and proposing
timely action solutions to minimize piracy, ensuring maritime security in the region
and global. |
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THERMAL PERFORMANCE OF WICKLESS HEAT PIPE WITH METHANOL AND ETHANOL WORKING FLUIDS |
Author : Hussain Saad Abd, Hisham Assi Hoshi, Abdulmunem R. Abdulmunem |
Abstract | Full Text |
Abstract :A wickless heat pipe is fabulous warm exchange devices that their integration into
warm exchangers has been appeared a strong potential for energy investment funds.
In the present work, the performance characteristics of wickless heat pipe such as;
thermal power, working fluids, variation of temperature with different powers,
thermal resistance and heat transfer coefficient are being investigated experimentally.
ethanol and methanol was being utilized as working fluids with filling ratio of 50%,
with different thermal loads (20, 30, 40, 50 and 60W), and constant flow rates of
cooling water (1 l/min). A copper tube of outer diameter of 22mm was fabricated as
wickless heat pipe. The lengths of the evaporator, adiabatic and condenser sections
are 500mm for each section. Within the tests, the temperature dissemination on the
wickless warm pipe surface and the temperature contrasts of the cooling water were
measured. The information were utilized to calculate the warm resistance and heat
transfer coefficient for each analyzed working fluid; results are displayed graphically
and examined in detail. These results demonstrated that ethanol is the working fluid
that has the most excellent thermal performance. |
|
A MODEL AND ALGORITHM FOR DETECTING SPYWARE IN MEDICAL INFORMATION SYSTEMS |
Author : V. Lakhno, D. Kasatkin, V. Kozlovskyi, S. Petrovska, Y. Boiko, P. Kravchuk, N. Lishchynovska |
Abstract | Full Text |
Abstract :The article outlines extensions to the model and algorithm of spyware detection
procedures which, in particular, presents a potential threat to medical information
systems. The approaches and solutions in this paper allow to programmatically
implement binary file segmentation using discrete wavelet transform (WT). Unlike the
existing approaches, the model and algorithm proposed in the article took into
account local extrema of the wavelet coefficients (WC). The described solutions allow
for analysis of potentially dangerous and spyware files the number of bytes, as well as
the entropy for individual segments of files that are transmitted for analysis to the threat detection module. Additionally considered an alternative solution, in which the
model was based on the procedure for analyzing the frequency of occurrence of file
bytes in segments or the location of bytes in segments of the analyzed files. The
wavelet transform was chosen based on maximizing efficiency for the analysis of
spyware, that are potentially dangerous due to collecting confidential data in MIS.
Experimental testing of the models was completed during the analysis of the keylogger
file, as well as other spyware programs installed in medical information systems
(MIS), that were not recognized as malicious by regular antiviruses. At the same time,
during the experimental verification, the task was to minimize the requirements for
computational resources on computers on which the MIS were running |
|
SELF-CALIBRATED NON-CONTACT CAPACITIVE TYPE LEVEL SENSOR FOR LIQUID AT DIFFERENT TEMPERATURES |
Author : C. S. Suresh Babu and Premila Manohar |
Abstract | Full Text |
Abstract :A novel non-contact, fringe capacitance based sensor is proposed to measure the
liquid level in process industries, to avoid the effects of hazardous liquids / chemicals.
In practical situations, the sensors are required to be calibrated repetitively when the
dielectric medium/dielectric constant changes owing to the fluctuations in the
process/environmental parameters. This work deals with the design of low cost, noncontact, fringe capacitance-based sensor for monitoring multi threshold levels
employing self-calibration feature. A sensor with Al electrodes is fabricated and
interfaced with PLC-S200 through switching unit. The performance is evaluated with
same liquid at four different temperatures which leads to significant changes in
dielectric constants. The results indicate that the concept of fringe capacitance
facilitates the feature of self-calibration. It is also observed that the PLC-S200
monitors the existing threshold level with lowest error varying from 0.408% FSO to
0.816% FSO.
|
|
HEAT TRANSFER COEFFICIENT ENHANCEMENT IN NATURAL CONVECTION FROM HORIZONTAL RECTANGULAR FIN ARRAYS WITH PERFORATIONS |
Author : Dr. N.P. Salunke and I.N. Wankhede |
Abstract | Full Text |
Abstract :The overall convection heat transfer coefficients for long horizontal rectangular fin
arrays are low because the surfaces in the inner region are poorly ventilated. In this
study, perforations through the fin base are introduced to improve ventilation with
cold air from below the fin base. Aluminum fin arrays with length L= 380mm, fin
height H = 38mm, fin thickness tf = 1mm, and fin spacing S = 10mm are analyzed
experimentally and numerically using ANSYS 14.0 so as to obtain the temperature
distribution along the fin height and fin length. In this work the fin array
configurations are tested experimentally with two different heater input as 50W and
65W. The heat transfer coefficient for fin array with perforations in fin base increased
by the enhancement factor of 1.49 and
1.42 as compared to fin array without perforation with 50W and 65W heater input
respectively. The heat transfer coefficient for the same fin configuration is also
increased with increase in heater input from 50W to 65W. Experimental and
numerical results for the temperature distribution show a difference of 5-9%. The
distribution of heat flux obtained with ANSYS 14.0 quantitatively follows the trend of
the same reported in the literature review |
|
EVALUATION THE PERFORMANCE OF LOCAL AND FOREIGN LUBRICATING OILS |
Author : DR. EKBAL MOHAMMED, DR.NAWAL MOHAMMED DAWOOD and AULA MOHAMMED OMRAN |
Abstract | Full Text |
Abstract :It is widely accepted that lubricating oils play important role in determining the
performance and the effective life in several industrial field. This work represents an
attempt to compare the efficiency of Iraqi made oils (multi grade oil) with the
important oils (American and emirate oil) at room temperature and
samples used in this work
chemical and mechanical tests were conducted
,Chemical composition analysis (EDS
results showed that hardness of (A356) was
carried out by tafelextrapolation
corrosion rate (mpy) at RT.
indicated that the weight loss was (70*10
test results in different oils at RT.
gm) in steady state region
3 gm) respectively, at 80 °
4.5*10-3gmcompared with
2*10-3gm)respectively. Finally
viscosity plays a vital role to characterize |
|
ESTIMATION OF EMISSIONS FOR PETROL VEHICLES IN SOME ROADS IN MERAUKE CITY |
Author : DANIEL PARENDEN and CIPTO |
Abstract | Full Text |
Abstract :Emissions of motorized vehicles account for a
cities. Vehicle growth exponentially significantly increases emissions, in addition to
the condition of vehicle feasibility, traffic patterns, city planning that concentrates
offices in the city is the cause of more air po
of air pollutants sourced from motor vehicles namely CO cause
respiratory tract irritation, NOx causes throat vessel reactivity in asthmatics. This
study aims to (1) find out the types of motor
the observation point and find out the types of motor vehicles that contribute the most
emissions (2) estimate CO emissions from motor vehicles (3) estimate NOx emissi
from vehicles motorized (4) estimating SO
testing the regression and correlation of the number of motorized vehicles to
emissions. The method used in this study is observation / observation, observational
data is processed using a calculation formula accordi
Minister of Environment No. 12 of 2010. Then the calculation data is carried out by
correlation and regression tests |
|
ATTITUDE QUADROTOR CONTROL SYSTEM WITH OPTIMIZATION OF PID PARAMETERS BASED ON FAST GENETIC ALGORITHM |
Author : Nasra Pratama Putra, Gerzon Jokomen Maulany |
Abstract | Full Text |
Abstract :Quadrotor control is needed so that the quadrotor can float close to the stationary
state. For that we need control techniques. One control technique that can be
designed and implemented in quadrotor is PID control. PID parameter tuning using
the Genetic Algorithm technique can speed up the manual tuning process. The
weakness in the application of the Genetic Algorithm rule is that it often rejects
important information found in other individuals and causes premature convergence,
especially at the beginning of the generation. These problems can be overcome by
using crossover and mutation rules with different probability levels according to
fitness values and evolutionary processes. The results of the study using fast genetic
algorithm techniques obtained constants Kp, Ki and Kd with the lowest rise time and
overshoot, namely 0.010, 0.001 and 0.036 at the pitch angle. At the roll angle, they
are 0.010, 0.001 and 0.03. At yaw angle 0.018, 0.006 and 0.043. Comparison of PID
tuning simulations using fast genetic algorithm with genetic algorithm standards,
shows that fast genetic algorithm has increased optimum generation achievement
faster by 26.67% at pitch angle, 44% at roll angle and 20% at yaw angle. This
condition has an effect on increasing simulation execution time, where fast genetic
algorithm is 26.4% faster at pitch angle, 38.05% at roll angle, and 24.19% at yaw
angle |
|
CLASSIFICATION OF THE LATEST HANDPHONE PRODUCTS IN THE TOKO REJEKI CELULAR IN MERAUKE DISTRICT |
Author : Gerzon Jokomen Maulany and Nasra Pratama Putra |
Abstract | Full Text |
Abstract :Toko Rejeki Celular is a shop that sells a variety of telecommunications electronic
equipment, one of which is a handphone. The store manager is required to be able to
make the right decisions in determining the sales strategy. In order to do this, further
analysis is needed regarding data from the sale of mobile phones and the needs of
customers. The purpose of this study was to apply data mining techniques to the Rejeki
Celular Shop in Merauke Regency. The results of the study are expected to provide
information in the form of classifications of sales of mobile phones that are most
popular with customers and are less popular (best sales and normal sales). The data
mining method used is the decision tree method, where the algorithm used is the C45
algorithm. As for the attributes are the type of mobile phone, price range, battery size
and screen size. The data sample used is 21 data which is the sales data for mobile
phones for 1 month. The results of this study are in the form of a system built using the
PHP programming language and MySQL database. The highest factor affecting the
purchase of mobile phones at Toko Rejeki Celular is the type of mobile attribute with
the highest Gain, which is equal to 0.21687. The next factor is the price range
attribute. As for the battery capacity factor and screen size it has no effect in
producing a decision tree |
|
SVR WIND PARAMETRS ESTIMATION: CASE OF MOHAMMEDIA – MOROCCO |
Author : ELHOUSSINE ECH-CHHIBAT, LAIDI ZAHIRI, LHOUCINE BAHATTI and ABDELHADI RAIHANI |
Abstract | Full Text |
Abstract :Wind energy is natural and renewable like solar energy; it is an inexhaustible
source. Morocco, like many other countries in the world, is embarking on a new
strategy aimed at improving its production of electricity from non
In this article, |
|
ENHANCEMENT OF SELF BELIEVING STUDENT USE OF SOCIODRAMA TECHNIQUES IS IT EFFECTIVE |
Author : Muh. Farozin, Diah Retno Ningsih |
Abstract | Full Text |
Abstract :Self-confidence can be improved by repeated learning so that over time it will
form and become accustomed. Sociodrama techniques can train one self-confidence
abilities, because there is role play to play someone who has good self-confidence. |
|
BANGALORE AS A MEDICAL TOURIST DESTINATION CHALLENGES AND PROSPECTS |
Author : K.S. BEENA and D. VENKATRAMA RAJU |
Abstract | Full Text |
Abstract :Medical tourism is a term to describe the rapidly
across international borders
travellers include elective procedures as well as complex specialized surgeries.
50 countries have identified medical tourism
healthcare revenues upward of US$3.3 trillion health care is world’s second largest
business after retailing. |
|
INVESTIGATION OF HYDRAULIC PERFORMANCE OF A FLAP TYPE CHECK VALVE USING CFD AND EXPERIMENTAL TECHNIQUE |
Author : NAGARAJ SITARAM, ABHIJEETH NAGARAJ, ADARSHA H, KAUSHIK V PRASAD and V RAVINARAYAN |
Abstract | Full Text |
Abstract :An attempt has been made to simulate flow through an 820
check valve by using CFD.
with different flow velocities. The pressure drops (
(V) are used to determine t
obtained analytical values of “K
The computational analysis has been carried out at five different disc angles of check
valve i.e. for 54° (fully opened) |
|
CORROSION ANALYSIS OF FUEL PUMP COMPONENTS CAUSED BY USE OF MIXED FUEL GASOLINE AND BIOETHANOL |
Author : CIPTO and DANIEL PARENDEN |
Abstract | Full Text |
Abstract :Stainless steel material is a material that has superior properties, namely good
resistance to corrosion. This makes use of a very large and varied, one of the uses in
the automotive field, stainless steel is used as a component of fuel pumps. Stainless
steel can experience corrosion if all or part of the protective layer is damaged,
damage occurs because the liquid or strong acid solution is delivered by HCl.
Corrosion testing uses the immersion method, the immersion solution used is a
solution of gasoline / premium fuel
bioethanol 20%, 50%, 85% and 100% (pure bioethanol fuel without gasoline /
premium fuel). The immersion test was carried out for 10 weeks at room temperature.
The study aims (1) to know the form of corrosion
(2) identify corrosion products, (3) determine the corrosion resistance of materials
based on corrosion rates, (4) determine the effect of percentage bioethanol on
corrosion rates |
|
INVESTIGATING THE BEHAVIOR OF TEACHERS TOWARDS SAVING AND INVESTMENT EVIDENCE FROM MEKELE, TIGRAY, ETHIOPIA |
Author : MESAUD MUHAMED HAGOS and SHIKTA SINGH |
Abstract | Full Text |
Abstract :This paper investigates the behavior of teaching community towards saving and
investment in Mekele, Tigray, Ethiopia. Hence, a teacher competency determines the
quality of education affected by numer
associated with saving, consumption, and investment. First
from sample respondents of collages, high school and elementary school |
|
CONSUMER BEHAVIOR ANALYSIS OF INTENTION TO BUY ON SOCIAL COMMERCE IN INDONESIA |
Author : ANDRY HARTANTO, SFENRIANTO SFENRIANTO, BAGAS DITYAANGGARAGITA and IVAN MULIA |
Abstract | Full Text |
Abstract :
The purpose of this study was to determine consumer behavior towards purchases
on social commerce in Indonesia. Research is quantitative using theories from
previous studies. Statistical analysis was performed using Multiple Linear Regression.
The data was collected using an online questionnaire on a sample of users who had
made transactions and accessed social commerce as many as 161 people. |
|
A STUDY ON COST OPTIMIZATION OF INTERNAL CYLINDRICAL GRINDING |
Author : Le Xuan Hung, Le Hong Ky, Tran Thi Hong, Hoang Tien Dung, Vu Thi Lien, Luu Anh Tung, Banh Tien Long and Vu Ngoc Pi |
Abstract | Full Text |
Abstract :This study aims to minimize the grinding cost of internal cylindrical grinding of
stainless steel 316 using optimal exchanged grinding wheel diameter. The
relationships of the grinding cost, the exchanged grinding wheel diameter and the
grinding process parameters are calculated by mathematical functions. The influences
of ten grinding process parameters including the initial grinding wheel diameter, the
width of grinding wheel, the total depth of dressing cut, the tolerance grade, the
grinding wheel life, the radial grinding wheel wear per dress, the machine tool hourly
rate, the wages including overhead cost, the grinding wheel cost, and the ratio of
workpiece length per workpiece diameter on the exchanged grinding wheel diameter
have been investigated. Based on 128 sets of the grinding parameters, the optimum
exchanged grinding wheel diameter related to the minimal grinding cost have been
determined as a function of the grinding parameters. This developed relation can be
further applied for cylindrical internal grinding to reduce the grinding cost |
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THE THEORETICAL RATIONALE FOR TRACTION EFFORT EXPERIENCED WORKING PART OF THE CULTIVATOR FERTILIZER |
Author : Arman Rustembayev, Dzadiger Eskhozhin, Sayakhat Nukeshev, Zyada Zhaksylykova and Kayrat Eskhozhin |
Abstract | Full Text |
Abstract :Traction effort required to move the working part of an experienced cultivatorfertilizer in the soil depends on many factors. These include friction coefficients of the
soil, weight and humidity. In this article we arebconduct a theoretical research, the
purpose of which is to establish a relationship between the physicomechanical
properties, parameters of the under development working part and the technological
parameters of its work. |
|
THE DIAGONALIZATION MATRIX OF THE n¦?(=*Tp,q) |
Author : DUNYA MOHAMED HAMED |
Abstract | Full Text |
Abstract :The aim of this paper is to determine the diagonalization of the
?
(=* T, ) is the tensor produ
of the group T, by itself |
|
EXPERIMENTAL AND SIMULATION INVESTIGATION FOR PERFORMANCE OF A SMALL-SCALE MODEL OF BARE AND SHROUDED HAWT |
Author : BALASEM A. AL-QURAISHI, NOR ZELAWATI BINTI ASMUIN, MOHAMMED NAJEH NEMAH and SALIH MERI A |
Abstract | Full Text |
Abstract :The HAWTs are existed in different sizes and they used in a different
requirements depending on the applications
HAWT in scale of 1:6.5 of original model was presented. The scale model of HAWT
and a suitable diffuser as a shroud for its, were fabricated and experimented in
wind tunnel in two forms, bare
were conducted using a new method to power calculation at a different wind velocities
ranged 5 - 9 m/s with focusing on a two wind speeds, 7 m/s and 8 m
tests in terms of power coefficient
an increasing in the power coefficient of the shrouded HAWT model
1.52 compare to the bare model one. On another hand, the experiments results were
validated with CFD simulation results for all cases
Moreover, CFD provided a clear visualization for the flow across wind turbine |
|
WILL SMART CITY NOTION BECOME AUTHENTIC: WITH SPECIAL REFERENCE TO MYSURU CITY |
Author : Lydia Vaz, Dr. Ravi Kumar |
Abstract | Full Text |
Abstract :Smart city is an internationally booming phenomenon. The concept of
City” is been used widely across
contexts. A smart city has to be well outlined
services, a good environment
of the citizens of the nation
of any nation. It is extremely essential for administration of India to offer well
informed urban communities in different states as a piece of financial advancement. In
view of the escalated investigation of exhibit writing surveys from different healing
territories, we recognize eight basic components of shrewd city activity:
"administration and association, innovation, administration, arrangement setting,
individuals and networks, economy, manufactured framework, and common habitat".
The basic role of this examination
up a major opportunity of the brilliant city transport even in the wake of being the
cleanest city. The examination depends on optional
gathered from different newspaper articles,
investigation, the investigator
in getting a "Smart City" tag |
|
DESIGN FOR CUSTOMER SATISFACTION – A PROACTIVE APPROACH TO INPUT CUSTOMER EXPECTATIONS IN DESIGN PHASE |
Author : Senthilkumar Ramakrishnan, K.R.Vijaya Kumarm and Dr.Naveen Chandran |
Abstract | Full Text |
Abstract :This paper attempts to classify various possible reasons for customer satisfaction or
dissatisfaction, especially focusing on Product Design. Taking an example of Automotive
Industry. It further deep dives to understand customer expectations and how to ensure
those elements are captured in the early design stage itself. It also suggests a method to
fine-tune the current development model, to be proactive in securing customer
satisfaction after the product is launched |
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BEHAVIOUR OF PENSION FUND AND POSSIBLE DEVIATION FROM THE EXPECTED BEHAVIOUR – A STUDY ON RETIRED EMPLOYEES OF MANUFACTURING SECTOR, MYSURU |
Author : Ms.Bhagyalakshmi K and Ms.Sunayana N |
Abstract | Full Text |
Abstract :The Indian subcontinent is known for its population and at present is one of the
countries having maximum number of youngsters. This also indicates an increase in old
age population. Meeting the needs of the old age has also been a matter of challenge to
the government. Both public sector and private sector, financial and non-financial
organization concentrate on pension planning. In recent days the importance given to
pension planning is increasing. Though there are schemes that promises old age security,
the effectiveness of such schemes is not evident. This paper focuses on study of
effectiveness of pension schemes opted by selected retired employees of private
manufacturing sector. The main objectives of the study is to understand the behavior of
pension fund and possible deviation from the expected behavior. The sample where
selected from retired employees of private manufacturing sectors in Mysore district. The
data was collected through scheduled questionnaire and telephone interview.
|
|
EFFECTS OF GLASS AND CARBON FIBER HYBRIDIZATION ON MECHANICAL PROPERTIES OF JUTE FIBER REINFORCED POLYPROPYLENE COMPOSITES |
Author : Ravishankar. R, Manjunatha T, Mahesh V M and Yogish H |
Abstract | Full Text |
Abstract :Experiments were conducted on jute fiber reinforced polypropylene (PP) composites
to optimize the content of fiber in the composite. It was found to be 40wt%. In the present
study, effects of hybridizing glass fibers and carbon in the optimized jute fiber reinforced
PP composite have been studied. The properties such as tensile, flexural and impact with
respect to randomly oriented jute, glass and carbon fiber variations in the PP matrix are
considered. Jute, glass and carbon fibers reinforced PP matrix composites with different
fiber contents were prepared by injection molding. Matrix content is kept as 60wt%. The
hybridization of the fibers considered by weight fraction for jute and glass is 20:20, for
jute and carbon is 20:20 and jute, glass and carbon is 20:10:10. Results showed that
tensile, flexural and impact properties have been improved with glass fiber hybridization
and further improvement in these properties are observed with carbon fiber hybridization.
When glass and carbon fibers are added in 10:10 weight percentage the considered
mechanical properties have been found to be nearer to the composite with 20 wt% of
carbon.
|
|
THE EFFECT OF ENTREPRENEURIAL ORIENTATION ON PERCEIVED BUSINESS SUCCESS OF SMALL SCALE MANUFACTURING IN ETHIOPIA |
Author : Yimer Ayalew Ahmed, Haimanote Walle Melese, Dr. Brajaballav Kar and Prof. Jaladi.Ravi, |
Abstract | Full Text |
Abstract :This paper aims to address the effect of entrepreneurial orientation dimension
variables on the perceived business success in small scale manufacturing enterprises in
the text of less developing countries by taking one regional province of Ethiopia that is
Amhara regional state. In this study, the explanatory research design was employed that
is inclined towards a quantitative approach. Data were gathered from primary sources
through a standardized questionnaire from small scale manufacturing enterprises
working in the Amhara region. A blend of multi-stage sampling techniques was employed
to choose appropriate samples and binary logistic regression analysis was applied for
the purpose of data analysis. The study result showed that all five entrepreneurial
orientation dimensions (autonomy, innovativeness, pro-activeness, competitive
aggressiveness, and risk taking) variables were significant in predicting the odds of
perceived business success. However, among those strongest predictors, only three of
them (Risk Taking, Pro-activeness, and Competitive Aggressiveness) have the positive
impact on the dependent variable, whereas the remaining two variables (Innovation and
Autonomy) have a negative impact on the perceived business success of small scale
enterprise.
|
|
EXPERIMENTAL AND NUMERICAL INVESTIGATION FOR THE NATURAL CONVECTION HEAT TRANSFER IN AN ENCLOSURE HAVING BAFFLES |
Author : Nabil Jamil Yasin and Dhia Al-Deen H. Alwan |
Abstract | Full Text |
Abstract :In this paper, the natural convection heat transfer in a cubic enclosure provided with
inclined baffles attached to the two adiabatic sides, heated from the bottom is studied
experimentally and numerically to assess the effect of the baffles on the heat transfer
process inside the enclosure. Two different configurations have been considered. The first
configuration corresponds to the heated from the bottom with uniform heat flux using two
baffles attached to the left and right walls, while the second configuration corresponding
that the enclosure’s floor has parallel bands that are heated to a constant, high
temperature and the bands are separated by gaps that are kept at a lower temperature
that is also constant and single baffle attached to the left wall. In both cases, the top wall
is kept at a lower temperature than the bottom wall and the inclined baffles are well
covered with an insulating material. The inclination angles of the baffles range as (0o =
and = 150o
). The governing parameter, Rayleigh number, is fixed within 2.6x1011. In
numerical solution, a commercial software package has been used for a 2-D computation,
and the effect of turbulence is modelled by using (k-e) model. Depending on its
orientation, the partial baffle has been found to change significantly the flow field which
in turn causes a reduction to the heat exchange inside the enclosure due to the damping
caused to the flow field. For all cases, the insulated baffle with any inclination angle
caused a reduction to the heat exchange inside the enclosure due to the damping caused
to the flow field. Also, a good agreement has been obtained between experimental
measurements and numerical results.
|
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EFFECTS OF REINFORCEMENTS (FIBER GLASS, TIO2 AND Y2O3) WITH DIFFERENT VOLUME FRACTION ON THE MECHANICAL PROPERTIES OF EPOXY COMPOSITE |
Author : Ali Adel Battawi, Balsam H. Abed and Dr. Abdul Wahab Hassan Khuder |
Abstract | Full Text |
Abstract :In this work, the influence of reinforcements on the mechanical properties of epoxy
composites was studied and compared. Reinforcements, like titanium oxide (TiO2),
Yttrium oxide (Y2O3), and fiber glass, were added with different volume fraction (2.5, 5,
10, 15 and 20) % of the epoxy resin. Different mechanical tests are achieved to evaluate
mechanical properties of composite such as; tensile, compression, hardness and impact
test. The results revealed that, maximum tensile and yield strength were obtained at (5%)
volume fraction of TiO2, which increase the tensile strength (34.7%) and yield strength
(40.1%) as compare with other reinforcements", while in compression test, (10%) volume
fraction of fiber glass increase compression strength (14.48%) and yield strength (15%)
as compared with other reinforcements. Higher hardness number was found at TiO2
which increase about (48%) as compare with epoxy composite. Impact strength was
observed to be decreased by increasing volume fraction ratio up to (10%) for all
reinforcements. |
|
A REVIEW ON TRIBOLOGICAL PERFORMANCE CHARACTERISTICS OF PLASTIC GEARS |
Author : S.Phani Kumar, Dr.K.N.S.Suman and S.Ramanjaneyulu |
Abstract | Full Text |
Abstract :Polymers are presently broadly utilized as substitute material for steel gear in low
load devices. Its malfunction differs from gears made of steel, thus it is imperitive to sort
out the failures shown by polymer gears. Numerous earlier studies noted that wear
recognition, microstructure surface condition monitoring, weight loss and temperature
detection can be used in the analysis for the failure of polymer gear. The principle
objective of the current work is to conduct an analysis for failure detection methods as
defined above. Other researcher works were studied and their findings were extracted in
order to identify the methods they used. The most common method used was wear
detection and it was supplemented by other methods such as microstructure surface
condition monitoring. Failures shown by polymer can be concluded to be tooth breakage,
tooth deformation, material removal and surface fatigue. |
|
A STUDY ON TURNAROUND TIME OF ONLINE INDENTATION OF MEDICINES IN A TERTIARY CARE HOSPITAL |
Author : Diksha Shroff, Brayal Dsouza, Dr Avinash Shetty and Manthan D Janodia |
Abstract | Full Text |
Abstract :Medication turnaround time is the time it takes for the pharmacy to process a
medication order. Reducing medication turnaround time is important to ensure timely
availability of the drugs to the patient. Objective: This study measures the turnaround
time for online indents of pharmacy reaching the patient wards and the factor affecting
the turnaround time to take remedial actions to improve the turnaround time.
Methodology :A Prospective observational study in the in-Patient Pharmacy Department
of a tertiary care teaching hospital Results : delay in turnaround time was captured ,
factors affecting the delay was lack of sequencing in order, IT system errors , long breaks
during peak hours , frequent enquiry calls , staff efficiency , lack of space were the factors
affecting turnaround time |
|
IMPLEMENTING ACTIVITY BASED COSTING AMONG AUTOMOTIVE ENGINEERING INDUSTRIES IN SMALL AND MEDIUM ENTERPRISES SECTOR OF TAMIL NADU |
Author : CMA. Dr. C. Samuel Joseph, Dr. F.J. Peter Kumar and Dr. R. Magesh Kumar |
Abstract | Full Text |
Abstract :There has been a long time discussions on which costing systems are to adopted in
the Indian Manufacturing Industries especially, the industries involved in Mechanical
Process. Normally, it is understood that a lot many companies is in the Automotive
Engineering Industry in the SME Sector are having their costing done in a traditional
method without having much progress or knowledge in the new way in which costing is
being done elsewhere. On surveying the literature, the author’s found a research gap
that, implementation issues of ABC costing system by the Indian Automotive Engineering
Industry of the SMEs need to be focused and studies need to be entertained. This study
assumes significance due to high prevalence of SME’s, with significant concentration of
automotive engineering industries, which confers a huge relevance to a study of this sort
to make concrete suggestions. |
|
EFFECT OF PROCESS PARAMETERS ON WEAR BEHAVIOR AND WATER ABSORPTION OF UHMWPE FABRIC REINFORCED EPOXY COMPOSITES |
Author : P.RajendraPrasad, J.N.Prakash and L.H.Manjunath |
Abstract | Full Text |
Abstract :The use of artificial fiber reinforced composites are widely used in many applications
such as automobile, aircraft manufacturing because they are cost effective and offers high
strength, and weight ratio compared to other composites with similar applications. In this
work, epoxy was selected as a matrix material to prepare a composite specimens
reinforced with UHMWPE fabric with varying layers. Composite specimens are prepared
by varying the number of fabric layers and Taguchi’s L9 orthogonal array method is used
to study the Tribological behavior. The test specimen of composite material had been
prepared using hand layup technique and the samples were tested for wear properties
using the equipment DUCOM made pin on disc experimental setup. The weight was
measured before and after the experiment is conducted. The effects of the Tribological
operating parameters applied load, sliding velocity and sliding distance on the frictional
and wear performance of UHMWPE fabric reinforced composites are demonstrated.
Moreover, water absorption tests were conducted to know their effect over a period of
time for both the aerial densities 200gsm and 240gsm of the fiber mats. It was observed
that the wear response of the specimens is influenced by the applied load, sliding distance
and the speed.
|
|
HEAT TRANSFER ENHANCEMENT IN MINI COMPACT HEAT EXCHANGER BY USING ALUMINA NANOFLUID |
Author : V.Vijayan, S. Saravanan, A.Godwin Antony, M.Loganathan and S. Baskar |
Abstract | Full Text |
Abstract :In the recent research activities, the nanofluids have involved a great deal
attention since their superior report in thermal performance and many other
applications. Now a days cooling process is a great challenge in most of the chemical
process, Nuclear reactor, automobile radiator, micro electronics systems. To meet out
this, a novel coolant (Nano fluids) was developed by choi.S.U.S 1995 at Argonne
National lab. USA. In continuation to his work, water based alumina Nano fluids was
prepared and applied in shell and tube heat exchanger to analyze the heat transfer
rate. The same analysis is discussed with conventional base fluid of water and
alumina nanofluid also this presents the characterization of Alumina Nano particle by
means of XRD and SEM. |
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SCOPE AND IMPORTANCE OF ASME JOURNALS IN MECHANICAL ENGINEERING RESEARCH – A SURVEY THROUGH GMRIT LIBRARY RESOURCES |
Author : Dr.T.Venkata Rao |
Abstract | Full Text |
Abstract :Academic institutions depend more and more on electronic resources based on the
advantages of electronic resources and application of information technology which
has brought several services to the users. Consequently, the academic community has
been enjoying the variety of services influenced by technology driven applications. The
present engineering college libraries are subscribing different packages as per the
AICTE as the management coming forward to subscribe the electronic resources for
their libraries. The present paper content deals with usage reports of the e-resources
journal of the ASME (American Society of Mechanical Engineers) monthly for last three
years in GMRIT |
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COMPARATIVE EVALUATION OF THE GRADIENT-BASED CUCKOO SEARCH (GBCS) AND (MC-GPSO) TECHNIQUES FOR OPTIMAL RFID NETWORK PLANNING |
Author : Nihad Hasan Talib, Khalid bin Hasnan, Azli bin Nawawi, Haslina Binti Abdullah And Adel Muhsin Elewe |
Abstract | Full Text |
Abstract :Large-scale, complex, and dynamic radio frequency identification network planning
(RNP) problem has been proven to be an NP-hard case. Meta-heuristic algorithms
provide efficient techniques to resolve the problems of RFID Network Planning
optimization that are not possible with the traditional techniques. The gradient of the
RFID Network Planning objective function was recently used to improve the precision
of global optimal solutions. This work presents a comparative study between the
Gradient-Based Cuckoo Search (GBC Search) and Multi-Colony Global Particle
Swarm (MC-GLOBAL PSO) in complex, and dynamic RNP network, Experiments are
conducted on two standard RFID sets of benchmark data which consist of random
topologies. The results of this comparison investigated the performance of the algorithm
in terms of (1) maximum of tag coverage, (2) required number of readers, (3) and
minimum interference between readers. The present method specifies the combined
performance of the reader propagation area based on the evaluation of the tag density
and location by using the Gradient-Based to manage the input representation of the
Cuckoo Search .Simulation outcomes demonstrate the (GBC Search) technique
outperforms the reference algorithms for designing RFID networks, in terms of
optimization efficiency and calculation robustness, indicating that the GBC Search is
suitable for solving huge dimension RNP problems |
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EFFECT OF THE DESIGN AND ENVIRONMENT PARAMETERS ON THE THERMAL EFFICIENCY AND HEAT LOSSES OF A PARABOLIC TROUGH SOLAR COLLECTOR USING NANOFLUID TECHNOLOGY |
Author : Ahmed I. Hadi and Mahmood S. Jamel |
Abstract | Full Text |
Abstract :In this paper, a mathematical model is developed to study the performance of a
parabolic trough collector (PTC). The proposed model consists of three parts. The first
part is a solar radiation model that used to estimate the amount of solar radiation
incident upon Earth by using equations and relationships between the sun and the Earth.
The second part is the optical model; This part has the ability to determine the optical
efficiency of PTC throughout the daytime. The last part is the thermal model. The aim
of this part is to estimate the amount of energy collected by different types of fluids and
capable to calculate the heat losses, thermal efficiency and the outlet temperature of
fluid. All heat balance equations and heat transfer mechanisms: conduction, convection,
and radiation, have been incorporated. The proposed model is implemented in
MATLAB. A new nanofluids like Water+PEO+1%CNT, PEO+1%CNT and
PEO+0.2%CUO where tested and were compared with conventional water and molten
salt during the winter and the summer to the city of Basra and good results were
obtained in improving the performance of the solar collector. The results explained both
the design and environmental parameters that effect on the performance of PTC.
Percentage of improvement in the thermal efficiency at the summer when using
nanofluids (Water+PEO+1%CNT, PEO+1%CNT and PEO+0.2%CUO) Nano fluids
are (19.68%, 17.47% and 15.1%) respectively compared to the water and (10.98%,
8.93% and 6.7%) respectively compared to the molten salt, as well as the percentage
decreases in the heat losses by using the Nano fluids through the vacuum space between
the receiver tube and the glass envelope compared with water (86 %, 76 % and 66 %)
and molten salt (79.15 %, 64.34 % and 48.47 % ) . As final a Water+PEO+1%CNT
nanofluid gives the best performance
|
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ROLE OF TRAINING ON EMPLOYEES PERFORMANCE AND ORGANIZATIONAL EFFECTIVENESS |
Author : Dr. Debi Prasad Das and Mengistu Guliti Buba |
Abstract | Full Text |
Abstract :Human resource is an asset to any organization and as a result training has
become an issue that has to be faced by every organization. The main objective of this
study was to determine whether training has an outcome on employee performance
and organizational effectiveness. This study is both qualitative and quantitative in
nature. In order to address the objective of the study, descriptive study design was
used in which data was collected across a sample population through simple random
sampling. Two hundred thirty-four (234) questionnaires were distributed for the
collection of data and 223 were filled and returned back. The methodologies that were
used to collect the data were questionnaire and interview augmented by different
literature found in the organization. Results show that training and delivery style
have effect on employees performance and also training design have positively affect
the overall organizational performance, the organizations predominantly used on-thejob training method, though there is a trade-off between the two methods and less
emphasis has been given to off-the-job training methods, the major challenges of
human resource training programs of organizations are shortage of training
materials, shortage of budget for employee training, absence of training needs
assessment. Hence, it is better if organizations design a training program based on the
need assessment result or the requirements of the job and employee deficiency of
ability for the job in order to increase individual as well as the overall organization
performance.
|
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COMPARATIVE AND EXPERIMENTAL STUDY ON THE PROPERTIES AND POTENCY OF SYNTHESIZED ORGANIC AND MINERAL SUNSCREEN MOISTURIZER |
Author : Oyinlola R. Obanla, Modupe E. Ojewumi, Ayodeji A. Ayoola, Oladele J. Omodara, Funmi Y. Falope and Olaitan H. Gbadamosi |
Abstract | Full Text |
Abstract :This research work aims at synthesizing two different types of moisturizers: a body
butter and a lotion. Based on the methodology, three samples of the body butter and
lotion was produced, by varying the percentage of zinc oxide and Shea butter, the
samples were analyzed with a UV- spectrophotometer to determine the transmittance
and absorbance strength which was in turn used to determine the SPF. Vaseline which
is a standard organic lotion was also analyzed to determine the transmittance,
absorbance strength and SPF. The results were compared. Of all the moisturizers
synthesized in this research, the lotion which had 10% zinc oxide had the highest
absorbance strength, and hence the highest SPF. Therefore, it was concluded that a
minimum of 10% zinc oxide should be used in the production of sunscreen moisturizers
to provide moderate sun protection |
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SPATIAL AUTOREGRESSIVE MODEL FOR MODELING OF HUMAN DEVELOPMENT INDEX IN EAST JAVA PROVINCE |
Author : Wara Pramesti and Agus Suharsono |
Abstract | Full Text |
Abstract :The Human Development Index (HDI) is set by the United Nations (UN) as a measure
of human development standards. HDI can also be used as a determinant of a country
including developed and developing countries. HDI is formed based on three basic
dimensions, namely longevity and healthy life, knowledge and decent living standards.
The purpose of this study was to model the HDI with the Spatial Autoregressive Model,
and determine the factors that influence HDI in each district / city in East Java, namely
the average length of school, literacy rates, per capita expenditure, the percentage of
poor people, and school expectations. The results of the analysis show that the average
school years, literacy rates, per capita expenditure, and district / city school expectations
in East Java significantly influence the human development index. The coefficient of
determination is 0.9916, indicating that variations in HDI can be explained by the model
of 99.16%, and 0.84% explained by factors that do not enter the model |
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LOCAL COMMUNITY EMPOWERMENT IN IMPLEMENTATION OF VILLAGE FUND PROGRAM IN DISTRICT NAUKENJERAI OF MERAUKE REGENCY |
Author : Alexander Phuk Tjilen, Samel Watina Ririhena and Fenty Y. Manuhutu |
Abstract | Full Text |
Abstract :This study aims to determine the process and barriers to local community
empowerment that occur in the implementation of village fund program in the
Naukenjerai District of Merauke Regency, by using a qualitative approach and
systematically analyzed to collect, and analyze data in order to get a clear picture by
conducting interviews with the District Inspectorate Merauke, District Government,
Village Government, Community Leaders and Religious Leaders. The research was
carried out in the Naukenjerai District of Merauke Regency, Papua Province. The results
showed that the process of community empowerment as a whole has not gone well except
women empowerment, village development programs still have projects that are not
carried out in accordance with established regulations and priorities, monitoring and
evaluation have not run optimally due to the limited apparatus and assistants involved in
the project. |
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CORROSION STUDIES ON CERAMIC PARTICULATES REINFORCED HYBRID METAL MATRIX COMPOSITES |
Author : U.Ramakanth and Putti Srinivasa Rao |
Abstract | Full Text |
Abstract :In the present investigation the corrosion measurements were carried out in 5% NaCl
aqueous solution, 2.5% HCl. solution for predetermined time intervals and varying
percentage concentrations of HCl solution at room temperature. Kinetics of corrosion
effect on samples of Al-Zn alloy, Al-Zn –5wt% flyash and silicon carbide particles and
Al-Zn –10wt% flyash and silicon carbide particles as reinforcement in composite are
studied |
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COLD STORAGE DESIGN IN CONTAINER |
Author : Peter Sahupala and Reinyelda D. Latuheru |
Abstract | Full Text |
Abstract :The purpose of this paper is to calculate the cooling load in frozen shrimp cold
storage, calculate the performance of the vapor compression cycle including mass flow
rate, compressor power, and COP. This study uses a theoretical design method. The
design of cold storage for shrimp commodity, with the capacity of one container, will be
calculated how much cooling should be given so that the maximum cold storage efficiency
is obtained. Design data obtained from observations in the field. When the research was
conducted in April 2015. The calculation results show that the Refrigerant used is
Refrigerant 12 (R-12), Cooling load = 14.3022 TR = 50.254 kW, Shrimp product = 12
tons = 12,000 kg, Cold storage temperature: 10 ° C, Superheated: 5 ° C, Sub cooled: 5 °
C, refrigerant temperature in the condenser: 35 ° C, refrigerant temperature in the
evaporator: 5 ° C, condenser pressure: 0.80 MPa Pressure in the evaporator: 0.40 Bar
and COP: 4.76. |
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ENGINEERING PLATFORM AS A TOOL TO IMPROVE THE EFFICIENCY OF R&D COMMERCIALIZATION |
Author : Tatyana Levchenko, Raigul Doszhan,Galiya Dauliyeva,Aisha Serikbayeva and Kenzhegul Bizhanova |
Abstract | Full Text |
Abstract :The article presents a conceptual model of a network engineering platform that
provides commercialization of R&D between the environment of knowledge generation
(universities, research institutes), the environment of their technologization (industry)
and equipped environment of development catalysis (venture funds and Agency
organizations). On the basis of the analysis, a model of a network engineering platform
was created, which connects research with production and is aimed at rapid
commercialization and bringing the results of scientific and technical activities to the
market. |
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IMPACT OF EMOTIONAL INTELLIGENCE ON HEALTHCARE ON HEALTHCARE PROVIDERS |
Author : Prachee Tandon, Dr.R.K.Chauhan and Dr.Vijit Chaturvedi |
Abstract | Full Text |
Abstract :The world today is undergoing a drastic change in terms of emotional capacities of
people around us. We see a huge number of people suffering from mental imbalance,
depression or many other types of emotional in competencies. The exposure of the
people to media, social media has increased the vulnerability of people very much.
There is a tendency to portray one’s best self in front of others which only reflects the
positive aspect of one’s life. This action affects not only the person who is presenting
self but indirectly also the people you watch them on social media. People with low
esteem tend to get affected by the people around them and start comparing their lives
with those they are socially connected to. Thus, there are already a lot of unsaid and
unexplained pressures present in our day to day lives. Emotions therefore have a huge
impact on each and everyone’s lives. They affect directly as well as indirectly. Directly
they affect one’s own self-awareness with respect to what and how they feel and how
well can they take charge of their emotions and indirectly they affect the other people
they interact with and deal with in their personal and professional lives. Handling and
dealing the emotions in professional lives is the key to professional success especially
in professions where the major dealing is with people. Healthcare is one such profession
and physicians and nurses as well as other healthcare providers are the professionals
who need to carry out their duties while dealing with people as they are their touch
points of services to be rendered to. It therefore becomes critical for physicians to have
a high level of emotional quotient in order to deal with people who are suffering from
different ailments and to handle their as well as emotions of self while providing clinical
advice. Physicians need to show high levels of emotional intelligence in addition to high
level of clinical expertise in order to provide higher patient satisfaction. Developing
effective communication with their patients, understanding their need and making them |
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INSIGHT TO MUTUAL INFORMATION AND MATRIX FACTORIZATION WITH LINEAR NEURAL NETWORKS FOR EPILEPSY CLASSIFICATION FROM EEG SIGNALS |
Author : Harikumar Rajaguru and Sunil Kumar Prabhakar |
Abstract | Full Text |
Abstract :As rich spatiotemporal dynamics are exhibited in the human brain, it is quite
complicated in nature. Sudden electrical disturbance of the brain occurs in a temporary
manner and it causes epileptic seizures. Seizures may be sometimes confused with other
events and sometimes it may even go unnoticed. Prediction of occurrence of an epileptic
seizure is quite difficult and it is very difficult to understand the course of action. To
analyze this widespread disorder of the brain, Electroencephalography (EEG) is used.
It is indeed one of the best techniques to probe the activity of the brain and it is highly
useful to diagnose the neurological disease. Tons of information is obtained by the EEG
monitoring system and analyzing it visually is quite difficult. Therefore, the
dimensionality of the EEG data is reduced with the help of dimensionality reduction
techniques like Mutual Information (MI) and Matrix Factorization (MF). The values
reduced through dimensionality reduction are then classified with the help of Linear
Layer Networks for the classification of epilepsy from EEG Signals. Results show that
when MI is used to reduce the dimensionality and classified with Linear Layer Networks
an average classification accuracy of 96.60% is obtained. When MF is employed with
Linear Layer Networks an average classification accuracy of 97.47% is obtained |
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ADMINISTERING INTERDENOMINATIONAL COMPETENT PUPILS IN MECHANICAL ENGINEERING STUDENTS |
Author : Dr. V.N.Sudheer and Dr. N. S. Vishnu Priya |
Abstract | Full Text |
Abstract :Administering Interdenominational Competency class is a very common problem.
Mostly, if not all, Language Classes contain students of mixed competency. This
happens for a number of reasons, but mainly because of different learning styles,
learning speed, variation in motivation, and very frequently as a result of logistic
decisions as most solutions to the problems depend on cooperation between the
members of the class.
Co-operative learning may be the most thoroughly researched instructional
method in education and rapidly growing body of research supports the effectiveness
of the approach. Cooperatively taught students tend to have better and longer
information retention, higher grades, more highly developed critical thinking and
problem solving skills, more positive attitude towards the subject and greater
motivation to learn |
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ANALYSIS AND DESIGN OF SERVICE-ORIENTED ARCHITECTURE APPLICATION BASED ON ENTERPRISE ARCHITECTURE DOCUMENT |
Author : IMAM MARZUKI SHOFI, RAMA AMBARA and AHMAD NURUL FAJAR |
Abstract | Full Text |
Abstract :Some company that has
has not yet been able to follow up on the future architecture in the EA. This study aims
to design and make prototypes
application based on TOGAF
the correlation between EA and SOA to
based application using Enterprise Service Bus (ESB
Management (BPM) tools. The research sample is an EA document
finance company in Jakarta. The results of the study show t
EA and SOA can be realized as a prototype of a SOA
executed. |
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INVESTIGATIONS ON DRILLING OF UNIDIRECTIONAL HEMP-POLYESTER COMPOSITES |
Author : Urvish Patel, Kundan Patel, Piyush Gohil and Vijay Chaudhary |
Abstract | Full Text |
Abstract :The natural fiber reinforced composites are emerging as a potential replacement
to synthetic fiber composite for lowering down the cost of applications and they are
used in interior of automobile, chassis of cellular phone, building construction, etc.
Drilling operation is the most important machining process for assembly of different
components. Delamination phenomenon occurs during drilling operation on
composites which lay-down the structural reliability of component. The present work
focused to carry out experimental studies of thrust force and delamination on drilling
of unidirectional hemp fiber reinforced composite. The drilling was carried out by
varying tool geometry (end mill, Centre drill, parabolic drill), feed rate (0.07, 0.17,
0.27 mm/rev) and spindle speed (800, 2800, 4800 rpm). Digital image analysis was
used to determine the delamination factor. ANOVA has been used to determine the
contribution of factors. Multivariable regression analysis has been also used to
determine empirical model between parameters |
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SYNTHESIS OF SIO2 NANO PARTICLES BY USING SOL-GEL ROUTE |
Author : S. SARAVANAN, A.GODWIN ANTONY, V.VIJAYAN, M.LOGANATHAN and S. BASKAR |
Abstract | Full Text |
Abstract :The sol-gel route is a simple chemical m
through bonding of atoms at the scale of 10
fabrication of oxides of metals chemically.
chemical & optical are enhanced
that, the relative surface area of the
with the bulk material. Controlling the annealing temperature would result in various
micro structures for the compound being produced.
acid solution was formed by stirring
minutes and subsequently annealed at 400°C.
particles decreased along with
increase of the silica content in the mixture |
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THE EFFECT OF PRINCIPAL’S LEADERSHIP TO THE ACHIEVEMENT MOTIVATION OF HINDU RELIGION TEACHERS |
Author : Ni Nengah Selasih, I Made Wiguna Yasa, I Nyoman Temon Astawa, Ni Wayan Sariani Binawati and I Ketut Sudarsana |
Abstract | Full Text |
Abstract :The achievement of the National Education Goals must be accompanied by an
increase in the components that influence education. Based on the results of research
conducted in Tabanan District, it was found that the leadership of principal greatly
influenced the achievement motivation of Hindu teachers. Motivation can be defined as
need, drive, and goal. Teacher achievement motivation is identified in three
definitions, namely: (a) teacher achievement motivation describes an energy force that
drives / causes someone to do certain ways; (b) teacher achievement motivation as an
encouragement that leads to something, namely teacher achievement motivation that
has a strong goal; and (c) teacher achievement motivation services to support the power
of teacher achievement motivation at all times. That is, teacher achievement motivation
consists of three basic components, namely (1) activating behavior, (2) directing
behavior, and (3) maintaining behavior. Achievement motivation is a driving force in
improving performance. Teacher achievement motivation is a driving factor that
comes from external and from internal that will affect the way he acts and behaves. One
of the motivations from external comes from the leadership. The principal leadership
is oriented towards human relations, namely the leadership style can improve teachers’
achievement motivation in realizing a quality school. Leaders are subjects who must
transform leadership through giving guidance or advice to subordinates so that the
goals are achieved. Transformational leadership can support the realization of a
change of school system. The principal carried out the leadership task by applying the
Hindu leadership style namely sad warnaning rajaniti / sad sasana, in influencing the
performance of the teacher as a subordinate cannot be separated from catur kotamaning
nrpati, namely jnana wisesa sudha, kaprahitaning praja, kawiryan, wibawa and typology
of leadership namely asuri sampat and daiwi sampat. Similarly, the transformational
leadership style is always coupled with transactional leadership. Both Hindu and
modern leadership styles can be combined in increasing achievement motivation
regarding teacher needs, namely the need for achievement, affiliation, and power, so
that school goals and National Education Goals can be realized |
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CHALLENGES RELATED TO MULTIGENERATIONAL WORKFORCE IN MANUFACTURING SECTOR |
Author : Dr. Ipseeta Satpathy, D.Litt., Dr. B.C. M. Patnaik and Ms. Debjani Palai |
Abstract | Full Text |
Abstract :Now a days, manufacturing sector recruits & retains multi-generational Workforce
which consists of employees from five different generations. It is always a great
challenge for organizations to lead a Multi-Generational Workforce (Zero-G – 5G) to
achieve their goals & objectives in a competitive era. The growth and development of
manufacturing sector depends on the effective management of multi-generational
workforce. Manufacturing sector consists of Multi-generational workforce who are
different in culture, thought, attitude & perception. It is always a great challenge for
the organizations to make goal congruence & bring collaboration among generations.
As each generation is unique according to its generational cohort, they act differently
on the basis of their ideology & priority. Such organizations face problems while
integrating the diversified ideology as senior employees give priority to job security &
satisfaction whereas youngsters are satisfied with handsome salary & incentives for
which they are ready to change their organizations. Similarly reward & motivational
factors make them unique on the basis of their cohort. For example, Traditionalist, the
silent generation is motivated by intrinsic reward whereas Baby boomers opt for both
challenging task as well as top positions. Similarly, Gen-X prefers balanced work -life
whereas Gen-Y, the tech savvy generation is motivated by work from home & knowledge
sharing along with dignity. Finally Gen-Z the 5G who are more advanced in technology
are motivated by heavy perks & instant rewards. It is an attempt to study & focus on
basic factors influencing multi-generational workforce in manufacturing sector - what
challenges manufacturing sector is facing while dealing with multi-generational
workforce & strategies with the help of which the workforce will attain its goals & gain
competitive advantage. |
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COMPARISON OF PERFORMANCE AND EMISSION CHARACTERISTICS OF MAHUA AND JATROPHA METHYL ESTER WITH BIOADDITIVE IN VCR ENGINE |
Author : S. Sivaganesan, C. Dhanasekaran, A. Parthiban and R. Pugazhenthi |
Abstract | Full Text |
Abstract :The search for alternative fuels in last few decades is intensive due to the rapid
depletion of petroleum fuels and their ever increasing costs. There is a great need to
reduce the consumption of conventional fuels in both developed and developing countries.
The consumption and demand of the petroleum based fuels is increasing every year due
to the increased industrialization and innovation in the world. The aim of the present
experimental work is to evaluate the impact of various compression ratio using blends of
diesel fuel with 20% concentration of Methyl Ester of Jatropha biodiesel blended with bio
additive and the blends of diesel fuel with 20% concentration of methyl ester of mahua
biodiesel blended with bio additive as an alternate fuel. The experiment is carried out
with three different compression ratios in DI diesel engine. Biodiesel is extracted from
Jatropha oil and mahua oil, 20% (B20) concentration with 3ml bio additive is found to
be the best blend ratio from the earlier experimental study. 3ml of biodiesel B20MEOJBA
and 3ml of B20MEOMBA is tested with compression ratio of 17.5. The purpose of the
experimental study is to obtain better efficiency, minimum specific fuel consumption, and
lower smoke and lesser emission. This is done by increasing cetane number using
combustion additives of 3ml bio additive blends with biodiesel when compared with the
baseline diesel.
|
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MESH CONVERGENCE TEST FOR FINITE ELEMENT METHOD ON HIGH PRESSURE GAS TURBINE DISK RIM USING ENERGY NORM: AN ALTERNATE APPROACH |
Author : Nithesh Naik, Prajwal Shenoy, Nithin Nayak, Swetank Awasthi and Rashmi Samant |
Abstract | Full Text |
Abstract :The study focuses on investigation of mesh convergence test for two-dimensional
disk rim of high-pressure turbine using energy norm as an alternate approach.
Numerical methods solve the real-time complex problems, represented by partial
differential equations using discretization of time and space variables. The criterion for
finite element method to obtain a converged solution to the problem and arrive at
accurate results from simulations is optimized input data. However, all discrete methods
introduce discretization error into the solution. The increase in the number of nodes, i.e
mesh density reduces the error induced leading to the converged solution. The mesh
density is increased in iterations, the trend related to convergence of solution, and error
induced are observed. The study used CATIA® and ANSYS® for modelling and
analysis, and the results obtained showed the effective use of energy norm technique
being used as criterion for evaluation and testing to obtain a converged solution. The
normalized error percentage was observed to be in the range of 6 to 8% for converged
solution.
|
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MOTIVATING FACTORS OF MECHANICAL ENGINEERS IN THE AUTOMOBILE COMPANIES IN CHENNAI – AN EMPIRICAL STUDY |
Author : Dr.J.Rengamani |
Abstract | Full Text |
Abstract :Motivation is the corner stone of productivity in any organisation. Motivation helps
the employees to put in better efforts in achieving the tasks assigned to them. Motivation
may also alter the behavior of employees in the organisation affecting the productivity
drastically. Motivated employees may work in the efficient and effective manner thereby
increasing the productivity and quality of work in the automotive companies. The
commitment shown by the employees depends on how organizations consider the factors
of motivation offered to the employees. The poorly motivated employees may even end-up
in creating loss to the organizations. The reward that the employees get in the process of
achieving the goal or task matters very much to the productivity of work in the
organizations. There are a number of factors which are responsible for the productivity
of mechanical engineers in the automotive parts manufacturing companies. The common
motivating factors of employees would be salary, working environment, safety, job
security and reward. There are much more motivating factors which the employees
consider as vital to increase the productivity in the organizations. Even though it is really
difficult and also practically impossible to identify what really motivates employees but
to some extent the motivating factors can be figured-out for the benefit of the employees
and also for the organizations. The study attempts to identify the factors which are really
responsible in motivating the mechanical engineers in the production plant of the
automotive parts manufacturing companies located in and around Chennai. |
|
MODELING AND OPTIMIZATION OF SILICA PRODUCTION FROM MAIZE HUSK |
Author : Olawale,O, Raphael, O.D, Akinyemi, B.A, Ogunsemi B.T, Ogundipe,S.J and Abayomi S.T |
Abstract | Full Text |
Abstract :Maize Cob has been used for silica production but no research had been reported
on the optimization of maize husk for silica production. This study is aimed at
developing an approach for the optimization of silica production from Maize Husk
(MH) using Response Surface Methodology (RSM). The MH was analyzed for crude
fiber (CF), crude protein (CP) and ash constituents using standard method. The MH
(30kg) was run using Box Behnken Design to determine the experimental combinations
of the predictor variables: Temperature (400-700 ºC), Time (2-6 h) and MH (5-7 g).
Optimal process variables predicted were validated by confirmatory experiments. The
silica produced was characterized using Fourier Transform Infrared Spectroscopy
(FTIR). The CF, CP and ash content were 1.52, 10 and 1.5 % respectively. The optimal
values of the variables from the RSM, namely: temperature, time and MH were 528 ºC,
5.31 hr and 5.85g. There was no significant difference between the values obtained from
RSM and that of the validation. FTIR showed noticeable absorption peaks attributed to
O-Si-O stretching. It can be concluded that maize husk which is an agricultural waste
is a viable product for silica production |
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MECHANICAL PROPERTIES AND MORPHOLOGY OF POLY (LACTIC ACID) (PLA) WITH DIFFERENT FLEXIBLE COPOLYMERS |
Author : B Ramanjaneyulu N.Venkatachalapathi and G.Prasanthi |
Abstract | Full Text |
Abstract :Poly (lactic acid) (PLA) blended with acrylonitrile-butadiene styrene (ABS) and
natural biodegradable tapioca cassava starch powder (NBTCSP) the weight ratios on the
properties of blends, the blends films were prepared by using a twin-screw extruder and
semi-automatic compression molding machine. The mechanical and morphological
properties of samples were investigated by tensile test, flexural, compressive , impact test
and scanning electron microscope (SEM), respectively.it was found that the tensile
strength of PLA/ABS (45/45/ wt %) blend composite was about 31.50 MPa the in the
absence of natural biodegradable tapioca cassava starch (NBTCSP), and it increased to
28.66 –32.90 MPa in presence of natural biodegradable tapioca cassava starch powder
(NBTCSP) at 10 wt% .The flexural value of PLA/ABS (45/45/ wt %) blend composite was
about 31.50 MPa the in the absence of natural biodegradable tapioca cassava starch
Powder (NBTCSP), and it increased to 28.66 –32.90 MPa in presence of natural
biodegradable tapioca cassava starch powder (NBTCSP) at 10 wt% . The SEM images
showed good interface and distribution for PLA containing 47.5 wt% ABS, 5 wt%
(NBTCSP) and 45 wt% ABS 10 wt% (NBTCSP) |
|
SEAWATER BATTERY APPLICATION FOR SAILING BOAT APPLICATION USING PARTICLE SWARM OPTIMIZATION BASED MAXIMUM POWER POINT TRACKING |
Author : SOEDIBYO, FEBY AGUNG PAMUJI, SJAMSJUL ANAM, MOCHAMAD ASHARI and MOHAMAD RIDWAN |
Abstract | Full Text |
Abstract :Indonesia has ocean potential energy as a renewable energy source, since around
2/3 of the area consists of water. On the other hand, Indonesian people also work as
fishermen. Seawater battery is one of renewable energ
It is applied in a sailing boat especially for cooling system when fishermen sail for
long time to cool some fish until they arrive in the land and are ready to sell. The
salinity is the most important thing to generate pow
of it always changes in every location, so the power would be fluctuating. Particle
Swarm Optimization (PSO) is proposed for tracking the maximum power point of
seawater battery. The result shows that PSO succeed to track
point in spite of the changes of seawater salinity |
|
STUDY THE EFFECT OF THERMAL IMPACT ON THE MODELLING OF (TITANIUMTITANIA) FUNCTIONALLY GRADED MATERIALS BY USING FINITE ELEMENT ANALYSIS |
Author : Basem Al-Zubaidy, Nabaa S. Radhi AND Zainab S. Al-Khafaji |
Abstract | Full Text |
Abstract :The developing of the composite materials produce a new generations
Functionally graded material (FGM) where the materials characteristics are
changing linearly depending to the composition materials variations. However, this
piece of research presents an attemp to design, manufacturing and multi Ti/TiO2
combined characterization into each functionally graded materials. The supposed in
this design is to better the general Ti/TiO2 characteristics. These materials were
designed in order to contain a compositional differences or a gradually
microstructure within the body in one piece or single material. |
|
VALEDICTION OF RESIDUAL STRESS MEASURED USING HOLE-DRILLING METHOD WITH 3D SIMULATION THAT DEVELOPED DURING TIG WELDING OF AISI 304 SS PLATES |
Author : Ramachandran Natarajan, Senthilmurugan Arumugam, Arvind Mohanasundaram, Divaakar Dharumarajan, Dineskumar Palaniswamy and Dinesh Gunasekaran |
Abstract | Full Text |
Abstract :Welding is aneffective permanent metal joining processes among all other processes
in manufacturing. In welding, a thermal cycle is applied to the weldment. Where welding
temperature differs across the material which results in irreversible elastic-plastic
deformation and itinduces the residual stresses in and around the welded and heat
affected zone (HAZ). Presence of residual stresses may be beneficial or harmful based on
the magnitude available along the thickness of the weldment. Here hole-drilling method
is adapted to measure residual stresses on the fusion zone of weldment as it suits well |
|
APPLICATION OF OPTIMIZATION PRINCIPLES IN CLASSROOM ALLOCATION USING LINEAR PROGRAMMING |
Author : N. K Oladejo, A. Abolarinwa, S.O Salawu, M.O Bamiro, A.F Lukman and H.I Bukari |
Abstract | Full Text |
Abstract :This paper deal with the application of optimization principle in solving the problem
of over-allocation and under-allocation of the classroom space using linear programming
in Landmark University, Nigeria. A linear programming model was formulated based on
the data obtained from the examination and lecture timetable committee on the classroom
facilities, capacities and the number of students per programme in all the three (3)
Colleges to maximize the usage of the available classroom space and minimizes the
congestion and overcrowding in a particular lecture room using AMPL software which
revealed that 16 out of 32 classrooms available with a seating capacity of 2066 has
always been used to accommodate the current student population of 2522 which always
causes overflow and congestion in those concentrated classroom because the remaining
16 classroom of the seating capacity of 805 were underutilized. Meanwhile if the
projected seating capacity of 3544 as revealed by the AMPL software in all these 32
classroom were fully utilized, this indicated that an additional 1022 i.e.(3544-2522)
students can be fully absorbed comfortably with the existing 32 classrooms in both of the
three (3) colleges if the seating capacities are fully managed and maximized. This will
helps the school management to generate additional income of N 585,606,000.00 i.e.
(1022 × 573,000) as school fees using the same classroom facility and as well as the
existing seating capacity |
|
CURRENCY NOTES WASTE UTILIZATION TOWARDS RESOURCES OPTIMIZATION AND ENVIRONMENT PROTECTION IN INDIAN ECONOMY: POTENTIALITIES AND PROSPECTS |
Author : A. G. Matani, Premesh P. Bhatkar and S. K. Doifode |
Abstract | Full Text |
Abstract :Cash continues to grow and remains in intensive use around the globe – to such
an extent that most economies define themselves as high to very high in cash intensity.
As a result, large quantities of unfit banknotes accumulate and are destroyed. In
response to inquiries from Central Banks, Currency Research has performed a study
on best practices in the handling and processing of banknote waste. A questionnaire
was distributed to one hundred and ten Central Banks. The responses given by fiftyone banks were analyzed and follow-up discussions with banks and suppliers of
banknote products and services were conducted. Consumers must be at least provided
with re-issuable notes. The notes identified for disposal were shredded and made into
briquettes weighing about 100 Gms. The present system has not only prevented
environmental pollution but also helped in manufacturing of eco friendly products.
Until 2001, the soiled and torn currency notes that were taken back were incinerated.
The briquettes are sold for industrial use through tenders. A kg of such briquettes are
sold for a minimum of Rs.6. On an average, nearly 8.28 lakh kg briquettes are
manufactured every year. The shredded currency is recycled into various products,
including files, calendars and even paper weights. Such briquettes are also distributed
as souvenirs to the visitors at the stalls of RBI in exhibitions. More people must come
forward to make eco friendly products using shredded currency |
|
CALCULATING THE NATURAL FREQUENCY OF HOLLOW STEPPED CANTILEVER BEAM |
Author : Luay S. Alansari, Hayder Z. Zainy, Aya Adnan Yaseen and Mohanad Aljanabi, |
Abstract | Full Text |
Abstract :Stepped or non-prismatic beams are widely used in many engineering applications
and the calculation of their natural frequency is one of the most important problem.
Several methods were used to calculate the natural frequency of stepped beam. In this
work, the Rayleigh methods (Classical and Modified) and finite element method using
ANSYS software were used for calculating the natural frequency of Hollow stepped
cantilever beam with circular and square cross section area. The comparison between
the results of natural frequency and frequency ratio due to the increasing the length of
the small part for these types of beams and for these three methods were made. The
agreement between ANSYS the classical Rayleigh results was better than the agreement
between ANSYS the Modified Rayleigh results for the two types of cross section area. The
maximum error of MRM was greater than that of CRM and the maximum error of circular
C.S.A. Was greater than that of square C.S.A. At the same dimensions. The natural
frequency of circular C.S.A was smaller than that of square C.S.A. for the same
dimensions |
|
COST ANALYSIS OF ENDOSCOPIC PROCEDURES IN A TERTIARY CARE HOSPITAL IN SOUTH INDIA |
Author : Umesha P, Dr.Somu G, Dr.Arun Mavaji, Dr.Rajesh Kamath, Ms.Brayal D’Souza and Dr.Sagarika Kamath |
Abstract | Full Text |
Abstract :Endoscopy is a non-surgical procedure used to examine a human digestive tract.An
endoscope is a long,thin,flexible tube with a camera attached at the end with which a
doctor can see the images of digestive tract on the monitor.It is used both for diagnostic
and therapeutic purposes and needs trained professionals |
|
DESIGN AND STATIC ANALYSIS OF A SUSPENSION HELICAL SPRING |
Author : SRV Narsaiah S, Rajesh Boorla, Bollepelly Manichandra |
Abstract | Full Text |
Abstract :A shock absorber is a mechanical device designed to reduce the amplitude of
damp shock impulse, and dissipate kinetic energy which helps in improved ride
quality, and increase in comfort. Substantially reduced amplitude of disturbances that
effected while travelling over rough ground. The aim of the current work is to analyse
by considering load acting on the single shock absorber spring. Structural analysis is
done to validate the strength while load acting on the spring. Comparison is done
analytically for different materials, diameter of wires and number of coils to get the
design of spring in shock absorber. The experimental results are compared with
virtual results. From this work the design of the spring can be modified within
standards. |
|
THE GAMUT OF E-COMMERCE: BETWEEN ONLINE FRAUD AND TRUST TOWARDS TECHNOLOGY AMONG GENERATION Y |
Author : Zuhal Hussein |
Abstract | Full Text |
Abstract :At present, generation Y represents the most population in the world and their
acceptance either as consumers, users or clients plays a significant and important role in
making the business world doomed or brighter. Therefore, their behaviour plays the most
important role in ensuring e-commerce does well and making the online business industry
grow tremendously. Yet, little is known about the intention among generation Y with
regards to e-commerce. This study aims to identify the online fraud and trust towards the
technology influencing the intention to use e-commerce among generation Y. A total of
one hundred and twenty respondents of generation Y were recruited in this study through
convenience sampling at Kota Bharu city. This quantitative study using survey as a
method of data collection and a questionnaire was distributed to the respondents to fill.
The respondents were asked for consent before proceeding with the survey, in order to
ensure that the ethical consideration was taken into account while conducting the study.
Data were analysed using Pearson correlation and multiple regression analysis. Findings
revealed that trust and online fraud had a positive and significant relationship with
consumer intention, and they were significantly affecting the intention of generation Y.
This study would suggest that the online business companies and e-commerce
technologies should consider focusing on these variables in the development and
implementation of a strategy to attract and retain buyers in the future |
|
PERFORMANCE EVALUATION OF SAVONIUS WIND TURBINE BASED ON A NEW DESIGN OF BLADE SHAPE |
Author : Salih Meri AR, Hamidon Bin Salleh B, Mohammed Najeh Nemah, Balasem A. Al-Quraishi and Nor Zelawati Binti Asmuin |
Abstract | Full Text |
Abstract :It is known that traditional sources of energy negatively affects the health and state
of the environment. The consumption of fossil fuels in all elements of life leads to the
export of carbon dioxide to the atmosphere contributing to global warming. Thus, the use
of wind energy to generate energy is a practical alternative between all renewable
sources. This paper presents the parameters effect of the blade shape and the overlap
ratio on the performance efficiency of the elliptical Savonius wind turbine. A new model
of Savonius blade has been designed by changing the inner surface of the concave blade
with overlap ratio of (0.2). The new model is printed using 3D-printer technology for
experimental testing in the wind tunnel at different wind speeds of (6 m/s, 8 m/s, and 10
m/s). We then calculate the mechanical torque of the turbine using a new and cheap
method in a short time to recode results data using the computer. Experimental results
showed an increasing performance efficiency and an increase in power coefficient by (18
%) of the new design compared to the classical turbine Savonius type elliptical |
|
PERFORMANCE AND EMISSION CHARACTERISTICS OF DUAL FUEL DI DIESEL ENGINE USING CASHEW NUT SHELL BIO DIESEL AND HYDROGEN AS FUEL |
Author : V. Thanigaivelan and M. Loganathan |
Abstract | Full Text |
Abstract :With augmented vehicle quantities during latest period have effected into immense
claim through vestige energy. These have lead with expansion of vehicle via substitute
energy that comprises gaseous energy, bio energy and vegetables oils as stimulate. Power
through hydrogen becomes the prime prospects which wrap the upcoming stipulate of
remnant energy scarcity. Hydrogen as a key substitute energy becomes a substitution
through usual energy. With notable possessions, alike elevated flare rapidity, elevated
calorific value stimulates usage of hydrogen energy like twin fuel manner in diesel engine.
Present study investigates the overall performance and emissions of diesel engine fuelled
through CNSL and hydrogen as dual fuel. The fuels have been tested under stationary,
one cylinder, water chilled diesel engine. Here the hydrogen is added with B20 (20%
CNSL and 80% diesel) fuel for different flow rate namely 4lpm, 8lpm and 12lpm. Engine
test results showed that exhaust emissions are reduced and performance are improved by
adding hydrogen fuel. The results showed that the addition of 8lpm H2 with B20 decreased
the HC and CO emission compared to B20 and neat diesel fuel. The BTE and NOx
increased for the above dual fuel mode. The NOx and exhaust gas temperature are
increased for 8lpm H2 addition with B20 fuel. |
|
THE ROLE OF IOT IN AGRICULTURE FIELDS |
Author : Dr. Balajee Maram and Dr. Guru KesavaDasu Gopisetty |
Abstract | Full Text |
Abstract :Today, majority of the farmers are dependent on agriculture for their survival. But
majority of the agricultural tools and practices are outdated and it yields less crop
products, because everything is depends on environment and Government support. The
world population is becoming more comparatively cultivation land and crop yield. It is
essential for the world to increase the yielding of the crop by adopting information
technology and communication plays a vital role in smart farming. The objective of this
research paper to present tools and best practices for understanding the role of
information and communication technologies in agriculture sector, motivate and make
the illiterate farmers to understand the best insights given by the big data analytics using
machine learning. |
|
THE BLOCKCHAIN TECHNOLOGY AS A CATALYST FOR DIGITAL TRANSFORMATION OF EDUCATION |
Author : Irina Yakovenko, Lyazzat Kulumbetova, Irina Subbotina, Gaukhar Zhanibekova and Kenzhegul Bizhanova |
Abstract | Full Text |
Abstract :The article reveals the concept of blockchain as a chain of blocks, distributed
database, distributed registry technology, where there is no centralized regulator that
could dispose of the blockchain at its own discretion, substantiates the need for the
transition to modern technologies; features of blockchain technology that reduce energy
and time costs for information processing; problems of transition to digital media in
educational institutions,; blockchain technologies that require changes in management,
management methods, financial management, specific people, infrastructure
development. The current situation with the first experiments of using the new blockchain
technology for the education system is considered. The risk analysis method of blockchain
technology in education and the mechanism of its application are presented. Several
directions of education development based on blockchain technology are offered |
|
MANAGING ON LEAN SERVICE IN SPORTS INDUSTRY |
Author : Hari Supriyanto and Yudha Andrian Saputra |
Abstract | Full Text |
Abstract :Lately, the application of lean has been applied in service companies with the
same objectives, namely the elimination of waste and increased efficiency of all
resources. As the global economy grows and develops, they are committed to
achieving improvements like that. The current economic indications are marked by
budget cuts and cost reduction but are still able to produce a good business
performance. This paper, we will explore waste that occurs along the value stream;
especially in the public sector, more specifically in industrial sports. |
|
SENTIMENT ANALYSIS OF TURKISH TWEETS BY DATA MINING METHODS |
Author : A Karahoca, D Karahoca and Erkut Evirgen |
Abstract | Full Text |
Abstract :Twitter, has fast emerged as one of the most powerful social media sites which can
sway opinions. Sentiment or opinion analysis has of late emerged one of the most
researched and talked about subject in Natural Language Processing (NLP), thanks
mainly to sites like Twitter. In the past, sentiment analysis models using Twitter data have
been built to predict sales performance, rank products and merchants, public opinion
polls, predict election results, political standpoints, predict box-office revenues for movies
and even predict the stock market. This study proposes a general frame in R programming
language to act as a gateway for the analysis of the tweets that portray emotions in a
short and concentrated format. The target tweets include brief emotion descriptions and
words that are not used with a proper format or grammatical structure. Majority of the
work constituted in Turkish includes the data scope and the aim of preparing a data-set.
There is no concrete and usable work done on Turkish Tweet sentiment analysis as a
software client/web application. This study is a starting point on building up the next
steps. The aim is to compare five different common machine learning methods (support
vector machines, random forests, boosting, maximum entropy, and artificial neural
networks) to classify Twitters sentiments.
|
|
A PERVASIVE STUDY ON APPLICATIONS AND TECHNOLOGIES OF INTERNET OF THINGS (IOT) |
Author : S. Manoj Kumar, K. Mahalakshmi, P. Xavier |
Abstract | Full Text |
Abstract :In present era, the Internet of Things (IoT) continues to gain momentum rapidly.
The Internet of Things has enormous applications in healthcare Industry from remote
monitoring to smart sensor enabled medical device integration. IoT ensures many
benefits in healthcare and has potential to improvement of patient outcomes, data
management and security in hospital, quality treatment and more. IoT technology has
huge impact on Healthcare to transform patient care and improve physician service
efficiency. The present study has focused the applications and technologies of IoT in
healthcare care sector and how far it benefits to healthcare stake holders |
|
FORENSIC BENCHMARKING FOR ANDROID MESSENGER APPLICATIONS |
Author : A Karahoca, D Karahoca and Selman Kasim Bagirici |
Abstract | Full Text |
Abstract :Technology has reshaped the way we interact with the world and access information
with the advent of smartphones. Accordingly, the needs we have and the solutions for our
needs have also changed along with the evolving technology. One of the most affected
matters from technology is communication. With the various options and capabilities,
instant messaging applications have been started to use for communication purpose
which is one of the biggest needs of human being. We can send text messages, video
messages, voice recordings and share locations using these applications. Even further,
we no longer need cell phone calls by GSM operators, and instead prefer these
applications for instant calls, as well as sharing private information with these
applications, not only for personal daily life, also for business need. On the other hand,
these applications bring risks with many benefits. One of them is privacy. We do not want
that these applications can store our personal data as its user. How do our best practices
keep our data? Do they give the necessary attention for privacy? Another fact is that these
applications can be used by criminals to communicate and execute a secret plan. If a
criminal gets caught, what can be obtained as evidence from these messaging
applications? This time we need to know what can be extracted from the mobile device.
This research focuses on forensics analysis of the instant messaging applications on the
Android platform. |
|
NTRS: A NEW TRAVEL RECOMMENDATION SYSTEM FRAMEWORK BY HYBRID DATA MINING |
Author : T Uçar, A Karahoca and D Karahoca |
Abstract | Full Text |
Abstract :This study suggests a new travel recommendation system (NTRS) that was developed
to generate alternative travel destinations for customers. The proposed approach employs
hybrid data mining methods on NTRS by combining classification and clustering
algorithms. NTRS can be used for different travel data resources to find the best
prediction model to generate accurate recommendations. NTRS was tested by using real
travel data which contains flight and hotel bookings. Before applying data mining
algorithms, data set was cleansed, grouped and preprocessed. Then classification
techniques; ANFIS, RBFN and Naïve Bayes were combined with X-means and Fuzzy Cmeans clustering algorithms to find the best prediction model for proposing alternative
trips via NTRS. To identify the most suitable prediction model; recall, specificity,
precision, correctness, and RMSE scores were benchmarked and the best one was
dynamically selected. According to the testing scenario results, ANFIS and X-means
combination scored the finest RMSE and correctness values. Based on the proposed
approach’s algorithm, travel locations including trip durations and airline companies
were generated as recommendation output of the testing scenario. Generated
recommendation items can be used for providing suggestions for individuals or it can be
used by travel agencies for planning travel campaigns for target traveler groups. NTRS
proves that it can be executed for different data sets with hybrid data mining methods. |
|
FACTORS AFFECTING THE MARKET SHARE OF THE RETAILERS: EVIDENCE FROM VIETNAM |
Author : Cuong Hung Pham |
Abstract | Full Text |
Abstract :This research focuses on the analysis of factors affecting the market share of retailers
in Vietnam. This research uses the 5Ss model of e-marketing to analyze, including Sell,
Serve, and Speak, Save, Sizzle. Both methods of quantitative and qualitative will be used
to conduct the study. In this study, the researchers collected information of customers,
managers, directors in 25 retailers in Vietnam. In each retailer, the researcher delivered
survey questionnaire to 15 people who are customers, managers and directors. The total
number of survey questionnaires delivered is 375 and 360 survey questionnaires were
collected. Research results showed that Cronbach’s Alpha of 05 factors affecting the
market share of the retailers is Sizzle (0.885), save (0.779), Sell (0.757), and Serve (0.709)
and Speak (0.708). This research has proposed some implications for the market share of
retailers, including technology enhancement for full message delivered, approaching to
target customers, improvement of product diversity. |
|
OPTIMIZATION OF DRESSING PARAMETERS FOR GRINDING TABLET SHAPE PUNCHES BY CBN WHEEL ON CNC MILLING MACHINE |
Author : Le Hong Ky, Tran Thi Hong, Hoang Tien Dung, Nguyen Anh Tuan, Nguyen Van Tung, Luu Anh Tung, and Vu Ngoc Pi |
Abstract | Full Text |
Abstract :The dressing regime parameters in the process of grinding are the most important
enabling factors that need to be determined. In this study, the influences of the dressing
parameters including the depth of dressing cut, the rate of dressing feed and the speed of
grinding wheel on the surface roughness when grinding tablet shape punches by CBN
wheel on CNC milling machine are investigated. Taguchi technique and analysis of
variance (ANOVA) have been applied to identify the impact of dressing regime
parameters on the surface roughness. The results show that the impact level of the cutting
depth (aed), the wheel speed (RPM), the feed rate (Fe) and errors on surface roughness
(Ra) are 52.63%, 28.45%, 6.59% and 12.33% respectively. By analyzing the experimental
results, optimum dressing parameters with the cutting depth of 0.02 mm, the wheel speed
of 1000 rpm and the infeed rate of 400 mm/min have been determined, that allow to get
the best surface roughness. |
|
FUNDAMENTALS OF SPECIFICATION FOR SORBENT IN DEFLUORIDATION OF DRINKING WATER |
Author : J. Sunil Kumar, V. Radhika and N. Srinivas |
Abstract | Full Text |
Abstract :Fluoride is a typical component of natural waters and its concentration varies
depending on the water resource. Water may be contaminated by natural sources like
more alkaline ions (CO3
2-+HCO3
->10.4 meq/l water) reacts with halite which comes
from industrial effluents. This is ensuing in fluoride concentrations up to 12.7 mg F–
/l
where ground level of water is low. WHO standards and BIS: 105000, 1991 permit only
0.5-1.5 mg/dl as the upper permissible limit for fluoride in drinking water for the Indian
context. Fluoride in excess of the permissible limits in drinking water causes a number
of endemic conditions referred to collectively as “fluorosis”. This paper explores the
sorptive answer of a recently developed adsorbent, Activated alumina finely grinded
with coconut shell powder. The efficiency of the sorption of fluoride ion is affected by
pH, contact time, adsorbent dose, type and size of adsorbents. The adsorption
equilibrium is well correlated by Freundlich and Langmuir models |
|
ENHANCED HEAT TRANSFER WITH ALUMINIUM OXIDE MICROPARTICLES |
Author : Angelo Jasper Minz and Dr. Ajeet Kumar Rai |
Abstract | Full Text |
Abstract :This study aims at experimental investigation on the effect of mixing of Al2O3
microparticles in water fluid on the heat transfer enhancement. The experiment was done
in a 3 channel 1-1 pass corrugated plate heat exchanger. The plates had sinusoidal wavy
surfaces with corrugation angle of 45°. Hot water at different inlet temperature ranging
from 40°C to 70°C was made to flow through central channel to get cooled by water in
outer channels. Experiment was measured in parallel and counter flow arrangement. The
variations of hot fluid outlet temperature and effectiveness of heat exchanger were
measured with rise of inlet hot fluid temperature. The required properties of the Al2O3
water mixture were measured at different concentration of Al2O3 microparticles from
0.0% to 1.275% by volume. It is observed that with volume percentage of Al2O3 increases
in the cold fluid the effectiveness of heat exchanger increases substantially. The addition
of Al2O3 microparticles in cooing water increases the effectiveness of heat exchanger by
0.88 in parallel flow and by 0.96 in counter flow |
|
OPTIMIZATION OF CO2 LASER CUTTING PARAMETERS ON AUSTENITE STAINLESS STEEL USING GREY RELATIONAL ANALYSIS |
Author : A. Parthiban, T. Sathish, S. Siva Chandran, R. Venkatesh and V. Vijayan |
Abstract | Full Text |
Abstract :The CO2 laser cutting is very popular for sheet metal fabrication industries
because of very accurately cutting of assembly components. So that this work
concentrate about to CO2 laser cutting of austenite type stainless steel material, the
Laser beam power, Cutting speed and gas pressure are very significant cutting
parameter for to cut quality surface. In this work to optimize the CO2 laser cutting
parameter for to cutting of Austenite stainless steel material for 3mm thickness the
responses are Top kerf width and bottom kerf width are considered, Grey relay
analysis method used in this work for to find out the optimized parameters for CO2
laser cutting. The output of the result laser beam power are predominate parameters
to affect the quality of cut |
|
ENHANCING SPEAKING SKILLS FOR ENGINEERING STUDENTS HAILING FROM RURAL BACKGROUND |
Author : K. A. Vilasini and Dr. X. John Paul, |
Abstract | Full Text |
Abstract :The study aims to explore the problems and difficulties of students speaking
English language for Engineering students hailing from rural background. The study
moreover aims to explore the causes of such difficulties. The researcher designed
certain tasks based on Task based language teaching on the sample of the study.
These tasks are applied for each student to investigate speaking difficulties and the
causes of such difficulties. The results showed and indicated that there are some
difficulties in speaking English due to fear of making mistakes, anxiety, shyness and
lack of confidence. The researcher identified to provide environment support and
encourage the students to speak English frequently. |
|
ERGONOMIC DESIGN AND RULA ANALYSIS OF A MOTORISED WHEELCHAIR FOR DISABLED AND ELDERLY |
Author : Bobby P Paul, Darius Gnanaraj S and Sam Paul |
Abstract | Full Text |
Abstract :Motorised Wheelchair plays a pivotal role in the social life of Persons with
disability (PwD) or elderly. Indian Motorised Wheelchair users scuffle to identify
right Ergonomic Motorised Wheelchair because there are only very few designs
developed by Ergonomic approach. The paper describes the methods to design an
Ergonomic Motorised wheelchair and analyzes the design with Human Digital
Models(HDM). Authors also demonstrate analyses of user comfort and some
Ergonomic design methods. The analysis of user comfort while in the design stage
using a Manikin by applying Indian Anthropometric Data makes the wheelchair a
better fit for the Indian users. Thus, the design of user-friendly wheelchairs by HDM
Ergonomic analysis. Authors also discuss RULA analysis of Motorised Wheelchair
with 5th, 50th and 95th percentile HDM. The paper also estimates Indian
Anthropometric Dimensions on HDM for Motorised Wheelchair. The paper also
presents some design innovations on the footrest |
|
SMOG PREDICTION MODEL USING TIME SERIES WITH LONG-SHORT TERM MEMORY |
Author : S Geetha, L Prasika |
Abstract | Full Text |
Abstract :Smog triggered due to air pollutants and fog. Deep Learning techniques are
applied to predict the smog severity. This paper presents deep learning based
predictive model for various air pollutants (NO2, NOx, CO, SO2, O3, PM2.5, PM10) for
metropolitan area Air pollution dataset. Central Pollution Control Board (CPCB) is
monitoring air, water, waste, etc through nationwide programs. Through National Air
Quality Monitoring program, the primary and secondary air pollutants are captured
and available in online. In this paper, two traditional predictive models along with
deep learning technique Long-Short Term Memory (LSTM) are used for predicting the
air pollutants. Before training the model, the missing values and noise in dataset were
imputed using mean value. Then, the models are built with LR, ARIMA, and LSTM.
Finally, the models performance is measured using Mean Absolute Error and Root
Mean Square Error (RMSE). LSTM performed better than LR and ARIMA. |
|
AN INVESTIGATIVE STUDY ON THE APPLICATION OF DIFFERENT STATISTICAL TOOLS AND METHODS FOR OPTIMIZING THE HOLE MACHINING ON POLYMER MATRIX COMPOSITES – A REVIEW |
Author : Naveen Guruputranavar and Dr. Sathish Rao U |
Abstract | Full Text |
Abstract :Machining is one of the unavoidable operation after the processing of any type of
material. Because of the advancement in the technology and innovation in the materials
area, the composite materials are replacing and occupying the traditional materials
market rapidly. Among these composite materials, the Fiber Reinforced Polymer (FRP)
composite materials are found to be technically and structurally competitive and are
widely used in a number of engineering industrial applications. The machining of these
composites is found to be a complex phenomenon due to the influence of a number of
machining and material parameters related to machining. Since drilling is the most
frequently applied machining operation on composites, many research works were done
on the drilling of composites, which resulted in numerous parameters that have influence
on the drilling operation, impact on work material and cutting tool damage, cost of
machining, material removal rate etc. So, at the background, it was thought to have a
review on the issues related to drilling on the composite materials, which could help the
manufacturing sectors and researchers in order to enhance the productivity. Thus the aim
of this technical paper is to provide a detailed study of various issues related to drilling
of FRP composite materials. This paper also comprehensively addresses the success and
the failures of drilling operations, the factors associated with the drilling operation, their
impact on the various output parameters. In addition, this review paper also discusses
about the influences of a number of machining parameters and their influence on
machining. |
|
DOUBLE INTEGRAL SLIDING MODE CONTROL APPROACH FOR A THREE-PHASE GRID -TIED PHOTOVOLTAIC SYSTEMS |
Author : M.Vinay Kumar and U.Salma |
Abstract | Full Text |
Abstract :This paper presents modelling and control of maximum power point tracking
(MPPT) for a three phase grid–tied photovoltaic (PV) system by using a non-linear
controller namely double integrated sliding mode controller (DISMC) to enhance
MPPT and to stabilize the output power of PV system. The non-linear I-V, P-V
characteristics of PV systems depends upon irradiation and temperature; causes
difficulty in tracking maximum power. The PV system consists of a PV panel, DC/DC
boost converter and a MPPT controller to generate pulses which are fed to converter
for tracking maximum power. In this paper, the performance of DISMC-MPPT shown
to be effective when compared to other controllers like perturb & observe (P&O)-
MPPT, adaptive P&O-MPPT, sliding mode controller (SMC)-MPPT and integral
SMC (ISMC)-MPPT. The presented DISMC-MPPT method is robust, provides quicker
and steady tracking maximum power with respect to the other discussed methods and
also performs well during any change in weather conditions. To validate the
effectiveness, the mathematical modelling of all the above mentioned non-linear
controller MPPT methods and their simulations are carried on Matlab/SIMULINK |
|
INFLUENCE OF SOLUTION HEAT TREATMENT IN POLYMER MEDIA ON PITTING CORROSION OF STAINLESS STEEL ALLOY (316L) USING SBF SOLUTION |
Author : Kharia Salman Hassan, Musaab K. Rasheed and Ahmed Ibrahim Razooqi |
Abstract | Full Text |
Abstract :Effect of Solution heat treatment on microstructure and "pitting corrosion "of the
austenitic stainless steel (316 L) is actualized.Agreeing to "ASTM (G71-31)" a figure
of samples for corrosion inspection were prepared with the dimensions of (15 * 15 *
3) mm then divided into sets and heated in electrical furnace at (1060C )for half
hour some of them were quenched in distilled water and the other quench by distil
water with (PVA)which added at different percentage(0.3,0.5,0.7,0.9%)gm/liter .
Microstructure of all specimens were examined also the corrosion conduct using
simulation body fluid. Results of microstructure examination show appearance of
many phases. The corrosion rate of all specimens which subjected to solution heat
treatment was higher comparing with the corrosion rate of base alloy. Solution heat
treatment in distil water and in distil water with high percentage of PVA (0.7, 0.9)
contributed in increases in corrosion rate but when decreases the percentage to (
0.3,0.5) the corrosion rate was decreased due to the increases in cooling rate . |
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SIX SIGMA APPROACH FOR REDUCING THE SLA’S RESOLUTION TIME: A CASE IN IT SERVICES ENABLED INDUSTRY |
Author : Praveen D Mallali, B Gopalkrishna and Shiva Prasad H C |
Abstract | Full Text |
Abstract :The Six Sigma is an innovative, systematic, data-driven methodology for
improving processes that reduce waste and defects/errors. The dynamic measure
within Six Sigma is the number of defects and identifying the causes for variation. The
variations are agile that creates uncertainty in delivering the desired outcome. Service
organizations are offering services at a predetermined level stated in SLA. This paper
attempts to standardize, reduce variation in offering service quality through
identifying the causes of variations in the project operations by establishing
specifications. The study shows the deviations among the projects teams. Analysing
the time-variation in resolving the problems encountered in different projects,
variation in the projects lapsed the delivery content within the SLA. Results after
introducing process capabilities and online auto-triggering system enabled, variation
in resolution times dropped. Team members were redeployed to other projects thus
time-variations is controlled with multiple business opportunities |
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HERMITE-GAUSSIAN MODE IN SPATIAL DIVISION MULTIPLEXING OVER FSO SYSTEM UNDER DIFFERENT WEATHER CONDITION BASED ON LINEAR GAUSSIAN FILTER |
Author : Sara Alshwani, Ahmed M. Fakhrudeen, Mohammed Nasih Ismael, Aras Al-Dawoodi and Alaan Ghazi |
Abstract | Full Text |
Abstract :The wireless telecommunication system of hybrid free-space optics (FSO) utilizes
a transmission medium of free space to transmit data at high bit rates. However, it is
exposed to various effects of noise in different weather conditions. This paper
investigates on compensation for atmospheric turbulence in optical communication
systems of 10-channels spatial division multiplexing (SDM) over FSO link under
different weather conditions based on linear Gaussian filter (LGF). The performance
of a 10-channel transceiver system is evaluated in an SDM-FSO link under the clear
sky, haze, and rain weather conditions based on Gaussian filter at the receiver.
Furthermore, the simulated system has transmitted 100 Gbit/s up for a distance of 12
km FSO in superbly very clear weather condition. Moreover, it is also transmitted 100
Gbit/s up for a distance of 4.2 km FSO during heavy rain and up to 1.1 km distance |
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EFFECT OF GEOMETRIC SHAPE VARIETY ON STRAINS DISTRIBUTION OF FORMED PARTS IN INCREMENTAL SHEET METAL FORMING PROCESS |
Author : Harith Yarub Maan |
Abstract | Full Text |
Abstract :The present work aims to investigate the distribution of strains in incremental sheet
metal forming process using different geometries. Four shapes were used to develop the
strain paths: truncated cone, pyramid, dome, and circular generatrix are formed in
incremental sheet forming process. The difference in strain paths depends on the
difference in the geometric shapes of the formed parts. Circle grid analysis was used to
obtain strain paths along the parts. Strains distribution was evaluated by circular grid
system (CGS) where a pattern of a small circle was electrochemically etched on the sheet.
The sheet is deformed during forming and the deformation of the circle is measured and
analyzed to explore the behavior of strains distribution in incremental sheet metal
forming. The curvature of the part is a large or plane wall the strain mode is plane strain
stretching and became biaxial stretching or uniaxial tension with the rotational symmetric
surfaces. |
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OPTIMIZING GRINDING PARAMETERS FOR SURFACE ROUGHNESS WHEN GRINDING TABLET BY CBN GRINDING WHEEL ON CNC MILLING MACHINE |
Author : Le Hong Ky, Tran Thi Hong, Hoang Tien Dung, Nguyen Van Tung, Nguyen Thi Thanh Nga, Luu Anh Tung, Vu Ngoc Pi |
Abstract | Full Text |
Abstract :Surface quality of a workpiece is one of the most important criteria for the
evaluation of a grinding process. Surface finish depends on many factors such as
grinding and dressing parameters. This paper presents an optimization of grinding
parameters when grinding tablet by CBN grinding wheel on CNC milling machine in
order to minimize surface roughness. The experiment was conducted with different
values of grinding parameters at three levels. Using the Taguchi method, the effect of
the grinding parameters i.e., depth of cut, grinding wheel speed, and feed rate on
surface roughness was investigated. In addition, the optimal grinding parameters
were found at their optimal levels. The predicted surface roughness was therefore
determined. |
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PERFORMANCE OF VEGETABLE OILS ON THE HARDNESS AND MICROSTRUCTURE OF AISI 1045 STEEL QUENCHED |
Author : R, S. E.A. Pérez Frye R, J.F. Llano M and D.A. Zuleta D |
Abstract | Full Text |
Abstract :Steels for machine manufacturing can be hardened through thermal treatments. In the
quenching treatment is possible to use different substances to improve mechanical
properties, in particular hardness and probably the wear resistance. As quenching media,
the water, water and salt solutions, polymer solutions, vegetable oils and mineral oils are
commonly used. In this work, vegetable oils (vegetable blended, soybean, canola and
sunflower) and mineral oil (10W30) were used as an alternative of quenching media to
study the performance of the hardness and the microstructures obtained. The quenching
treatment was carried out involving heating at temperature of 850º C and keeping inside
electric furnace for 50 minutes to achieve homogeneity in the internal structure. The
quenched was carried out at room temperature using each vegetable and mineral oils.
The results showed that use of vegetable oils is a good alternative as a tempering
substance. The results showed that vegetable oils have a better performance than mineral
oil, as they allow to reach hardness above 40 HRC and generate high strength and
toughness microstructures. Among vegetable oils, Canola oil allowed the highest
hardness and the microstructure with the best presence of bainite |
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COMMERCIAL ENTERPRISE OPERATION EFFECTIVENESS’ INCREASE DUE TO THE DEVELOPMENT AND IMPLEMENTATION OF PROPOSALS ON THE PROFIT MARKUP AND DISTRIBUTION |
Author : Yu.S. Berdova and N.B. Panchenko |
Abstract | Full Text |
Abstract :The dynamics analysis of the commercial enterprise profit was carried out. The
main activities of this enterprise are business process automation, software sales, cash
register equipment and expendable material sales. The structure of profit distribution
during the reporting period was described. The main directions of profit optimization
in the planning period were found out and characterized according to the analysis of
factors which influence the level and dynamics of the commercial enterprise profit |
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THE IMPACT OF PUBLIC INVESTMENT ON THE COMPETITIVENESS OF THE RUSSIAN R & D SECTOR |
Author : Irina Ilina, Elena Streltsova, Alex Borodin and Irina Yakovenko |
Abstract | Full Text |
Abstract :The problem of managing the R&D sector sustainability in Russia is of particular
relevance in terms of scaling external and internal challenges faced by the country. Such
challenges require an even greater intensification of the efforts to solve the problems
accumulated in Russian economy and innovation system and associated with the state
transition to new technological way. A key criterion of R&D sector competitive
sustainability is the creation of practice-oriented and relevant results of intellectual
activity. Correlation analysis of innovative activity indicators in developed countries over
the 2007-2015 revealed a pattern of two-fold excess of export licenses over the amount of
public investment in science. This dependence is crucial in the study of competitive
sustainability within R&D sector. The method of assessing the efficiency of public
spending on R&D, including an analysis of the dynamics of the growth rate of
performance indicators and their financing in case of R&D completed in the period is
proposed as the main management tool of R&D sector competitive sustainability. |
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A REVIEW OF WORK BREAKDOWN STRUCTURE AND MAN-HOURS ESTIMATION METHOD USED IN SHIPBUILDING PRODUCTION |
Author : W.A.Z. Wan Abd Rahman, N.I. Mohd Zaki and M.K. Abu Husain |
Abstract | Full Text |
Abstract :The aim of this research is to define the Work Breakdown Structure (WBS) and to
understand the linkages between WBS and man-hours development for Shipbuilding
Project. The Work Breakdown Structure (WBS) is the best tool to simplify the
complexity of the project and this research will define the complete and accurate WBS
of a Hull Ship since it is an important and critical activity in every shipbuilding to
estimate the project schedule, cost and labour man-hours. The methodology will
involve latest literature review related to Shipbuilding WBS and man-hours estimation
and a suggestion will be made for the best method of WBS and man-hours
development. Implication from this research will assist Project Manager and Project
Team to develop an improved project schedule planning method, which be utilized
during project management to identify the best WBS and project man-hours. This also
will lead to cost reduction in terms of man-hour optimization when the proper tasks
and activities are clearly defined during WBS development |
|
MEGALITHIC SITE IN NEGERI SEMBILAN |
Author : Siti Salina Masdey, Zuliskandar Ramli, Nuratikah Abu Bakar and Shamsuddin Ahmad |
Abstract | Full Text |
Abstract :The development of Megalithic culture in Malaysia is said to have begun since the
time of Metal. The megalithic found in Pengkalan Kempas History Complex is
categorized as unique as it is engraved and carved in various forms such as the shape
of the sword, the blade, the steering wheel and also the stone carved with the Arabic
word "Allah" in jawi letters. The megalithic site in Negeri Sembilan is likely to exceed
200 sites. The objective of this paper is to discuss the previous studies that have been
done by previous researchers associated with megalithic sites in Negeri Sembilan.
This study used written materials in the library whether books, journals or seminar
papers and so on. The results of this study showed that there various community
perspectives about the megalithic stones. Among these is the concept of live rock
which is the existence of various rituals, offerings or worship, extraordinary
confidence, a sense of honor and so on |
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BUILDING SUSTAINED COMPETITIVE ADVANTAGE THROUGH TECHNOLOGY RESOURCES AND INTERNATIONAL COMPETITIVENESS |
Author : Nurdin Tampubolon, Dyah Budiastuti, Agustinus Bandur and Edi Abdurachman |
Abstract | Full Text |
Abstract :Crude palm oil is one of the mainstays of Indonesia exports. In the midst of
intense competition vegetable oil producing countries in the world, Indonesia
must have international competitiveness which is strongly supported by the technology
in order to achieve a sustained competitive advantage. The major purpose of this
paper is to examine the direct effect of technological resources to international
competitiveness and sustained competitive advantage as well as measure the
mediating effect of international competitiveness in the relationship between
technological resources and sustained competitive advantage. For these purposes, an
empirical survey was conducted with the active participation of 82 palm oil industries
in Indonesia. In addition to the survey, in-depth interviews were conducted to follow
up the quantitative results. On the basis of path analysis with SmartPLS, technology
resources had positive and significant effect to sustained competitive advantage. This
study suggests the importance of technological resources in achieving sustained
competitive advantage on the part of palm oil industries in developing countries |
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EVALUATION OF PARTICLE BOARD FROM SUGARCANE BAGASSE AND CORN COB |
Author : O. D. Atoyebi, C. O. Osueke, S. Badiru, A. J. Gana, I. Ikpotokin, A. E. Modupe and G.A. Tegene |
Abstract | Full Text |
Abstract :This article evaluates particle board using corncob (CC) particles and mixing it
homogeneously in varying percentages 20%, 40%, 50%, 60% and 80% with sugarcane
bagasse (SB) using Urea Formaldehyde resin as adhesive. Particleboards of 100% SB
and 100% CC were also made, thereby making seven different compositions. Properties
of particleboards produced such as density, water absorption, thickness swelling,
modulus of rupture and modulus of elasticity were investigated. The densities of
particleboards ranged from 400 Kg/m3
to 620 Kg/m3
. The results of the tests also show
that the particleboard with 50% CC and 50% SB using equal volume of adhesive had
favorable physical properties that are recommendable for indoor uses in buildings. In
contrast, the panels cannot be recommended for load bearing purposes because they
exhibit poor mechanical properties, but these mechanical properties tend to improve as
the composition of CC increased from 40% to 100%. The MOR and MOE results obtained
in this research work lead to a conclusion that the mechanical properties of the panels
were improved as the percentage of CC replacement increased but possessed poor
physical properties. Within the experimental investigation and possible limitations |
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EFFECT OF ETHANOL ADDITION ON PERFORMANCE AND EMISSION OF CNSL BIODIESEL- HYDROGEN OPERATED DI DUAL FUEL ENGINE |
Author : V. Thanigaivelan and M. Loganathan |
Abstract | Full Text |
Abstract :In this investigation, Cashew nut shell liquid (CNSL) biodiesel, hydrogen and
ethanol (BHE) mixtures remained verified in a single cylinder direct-injection diesel
engine to examine the recital plus discharge features of the engine. The engine stayed
verified at supreme force and rapidity of 1500 rpm. The ethanol remained
supplemented 5%, 10% and 15% correspondingly through enhanced CNSL as well as
hydrogen functioned twin fuel engine. The consequences designate that while
associated through well-ordered diesel and biodiesel-hydrogen process, the recital
and discharge features of ethanol mixtures obligates upgraded. The brake thermal
efficiency upsurges somewhat through 10% ethanol mixtures and nope noteworthy
enhancement by advanced ethanol mixtures. The exhaust gas temperature and NOx
release augmented by 10% ethanol accumulation. Through greater proportion of
ethanol in the biodiesel hydrogen (BH) mixtures the HC, CO releases might upsurge.
However the routine of 10% ethanol might diminish the HC and CO releases
equally. Overall the BHE mixtures ensure greater NOx discharges, associated by
biodiesel and diesel energy. Throughout the BHE mixtures offers lesser HC, CO, as
well as greater NOx release associated through the well-ordered diesel fuel.
Nevertheless the embellishments of added ethanol thru BH mixtures require no
substantial enhancement in the recital discharge and stages |
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EFFECT OF INSULATIONS ON COP IN VAPOR COMPRESSION REFRIGERATION SYSTEM |
Author : Anusha Peyyala and Dr N V V S Sudheer |
Abstract | Full Text |
Abstract :In this project, experimentation is done on Vapour Compression Refrigeration System
[VCRS] as the COP is high for this system and it is the present trend of the HVAC in the
domestic industry. This study presents investigation of best suited refrigerant and
insulation combination for gas pipeline and liquid pipeline of a split air conditioning
system. Analysis are performed for R22-Chlorodiflouromethane, a HydroChloroFlouro
Carbon refrigerant, which has been using in the present world that cause both global
warming and ozone layer depletion and R410a, mixture of di-flouromethane and
pentaflouroethane, a Hydroflouro carbon refrigerant, which is future of HVAC which
reduces the effect of ozone layer depletion [ODP] and Global Warming Potential
[GWP].For these two refrigerants, we had found out the best insulation suitable as
insulation also affects the COP of air conditioner, which has been observed from the
literature. Minimizing the temperature of refrigerant in suction line helps condensing unit
work more effectively intern the system performance increases. This reduces the overall
power required for working of air conditioner, thereby reducing the maintenance cost of
system. Also, it helps the manufacturer to provide best type of insulation for the system at
reduced cost thereby reducing overall cost of VCRS.To perform the experimental
comparison, 16 tests were carried out for 5 times with each refrigerant Insulation
combination. From analysis it is observed that, COPA for NRF+AF gives highest value
for R22 and R410awhen compared to various insulation materials. Power required for
VCRS is greater while using R410a than R22. So In this work the main energy parameters
such as COP and work required for compressor are analysed and discussed. |
|
NUMERICAL INVESTIGATION OF SHELLAND-TUBE HEAT EXCHANGER WITH PARABOLIC SEGMENTAL BAFFLE CUT |
Author : Ikpotokin I., Uguru-Okorie D. C. Osueke C. O., A. A. Dare and M. O. Petinrin |
Abstract | Full Text |
Abstract :An investigation was carried out on the effect of the use of a parabolic baffle at
different baffle cuts on the performance of shell and tube heat exchangers. The
numerical study was performed on a personal computer with 12 GB RAM and Intel®
Core™ i7 2.50GHz CPU using a CFD software Comsol Multiphysics. The modeled
heat exchanger had 37 tubes, shell internal diameter of 200 mm, 6 baffles with baffle
spacing of 100 mm. The results from the effect of mass flow rate and baffle cut on heat
transfer rate and pressure drop in the shell side of the heat exchanger were compared
with the circular segmental baffle cut of 25% and that of the parabolic baffle cut of 25
and 30% of the inner shell diameter. At 25% of the shell diameter baffle cut, the
parabolic cut had an improved heat transfer rate compared to that with the circular
segmental baffle cut with a drawback of higher pressure drop. As the parabolic baffle
cuts increased, there was a decrease in heat transfer rates and pressure drops at the
various mass flow rates considered. At 30% of shell diameter cut, the performance of
the parabolic segmental baffle cut gave results similar to the circular segmental baffle
cut at 25% of the inner shell diameter. The investigation showed that for a parabolic
baffle cut, 30% of the shell diameter is recommended for optimum performance.. |
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INFLUENCE OF AUSTENITE AND FERRITE STABILIZERS ON THE MICROSTRUCTURE AND RELATED MECHANICAL PROPERTIES OF CARBURIZED STEELS |
Author : Sathyashankara Sharma, Pavan Hiremath, Gowrishankar M C and Manjunath Shettar |
Abstract | Full Text |
Abstract :Carburization is a thermo-chemical treatment generally employed to enhance the
surface (wear) properties of low carbon steels. The recent carburization studies also
focus considerable positive impact on bulk properties like tensile strength and
toughness. In view of these observations, the present study focuses on mechanical
properties and microstructure of carburized steels. Accordingly, the commercially
available three types of case hardenable steels like plain carbon (EN 3), alloy steels
with only ferrite stabilizer (20MnCr5) and with both ferrite (Cr) and austenite (Ni)
stabilizers (EN 353) were initially normalized to standardize the room temperature
structure before carburizing and machined to ASTM standards to prepare the
specimens. The machined specimens were gas carburized using carburizing furnace
for 2.5 mm case depth and furnace cooled. Tensile and hardness tests were conducted
before and after carburization. The plain carbon steel displayed slight reduction in
tensile strength and the steels with alloying elements increased the tensile strength
considerably. It was also found that Ni and Cr restrict the grain growth and increase
the strength of steel even in furnace cooled condition. Microstructure analysis of
carburized steels revealed markable impact on the type and distribution of room
temperature phases. The carbon content in the case was nearly 0.8 wt. % after
carburization and hardness increase in the surface ranges from 130 to 170% as that
of its original hardness. The combined effect of Ni and Cr also improves
hardenability |
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SIMULATION EDUCATION FOR KOREAN NURSING STUDENTS CONCERNING EMERGENCY SITUATIONS OF NEWBORN BABIES |
Author : Min Hyang Park RN, PhD |
Abstract | Full Text |
Abstract :This study was conducted to review the effect that simulation training programs
for emergency situations involving newborn babies have on nursing students’ clinical
performance. Opportunities for nursing students to clinically practice what they
learned are on the decrease. Even if they take part in practice, they are usually
limited to simple tasks or observation. Given this reality, there is an urgent need to
develop new measures to improve their clinical practice ability. The low fertility rate
that is worsening over time and the difficulty in operating an intensive care unit for
newborn babies has led to a decrease in such departments, leading to difficulties
experienced by a number of universities in allocating clinical training venues. After
conducting a survey on the needs regarding training themes in the nursing of newborn
babies, simulation training programs would have to be developed based on themes
where the needs are the highest |
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MANAGEMENT OF INNOVATIVE DEVELOPMENTS OF EDUCATIONAL INSTITUTIONS IN WORLD AND RUSSIAN PRACTICE |
Author : Tatiana Viktorovna Krupa |
Abstract | Full Text |
Abstract :The relevance of the study is determined by the fact that a higher education institution
allows for the implementation of innovative research based on its own development and
management of intellectual activity. In order to determine the possibility of managing
innovative developments, it is advisable at the university to integrate the system of
intelligent control and form an innovation management body.
The novelty of the research is determined by the fact that for the first time in the
domestic practice a question is being investigated regarding the intellectual management
of higher education institutions as well as the forms of integration of innovative activity.
Higher education institutions in various countries allow us to determine how innovative
forms can be implemented in a managerial aspect, depending on the capabilities of the
university and its technological focus. Each of the participants in innovation requires
constant monitoring and coordination of various bodies. In this regard, it is necessary to
clearly understand how to organize a particular activity in the framework of interuniversity cooperation.
Methodologically, the article is based on the study of historical and theoretical
experience, as well as a set of parameters, which are determined based on the general
conditions for the formation of management decisions.
The practical applicability of the article is revealed in the direction of the activity to
increase the share of innovative products, both technological and intellectual, in the
practical activities of the university. |
|
PROCESS APPROACH TO IMPROVING REVENUES AND EXPENDITURES MANAGEMENT SYSTEM OF THE MINISTRY OF EDUCATION AND SCIENCE OF RUSSIA |
Author : Tatiana Viktorovna Krupa |
Abstract | Full Text |
Abstract :According to the results of the Russian Finance Ministry assessment of the quality of
financial management of the managers of the federal budget, including process and
outcome indicators of financial activity as part of the state programs « Education
Development », « Science and Technology Development», the Ministry of Education and
Science of the Russian Federation in 2017 occupied the 26th place.
The relatively low financial and managerial statements of the Ministry of Education
and Science of the Russian Federation activity concerning government program funding
are caused by deficiencies in methods and tools for managing budget expenditures, and
it is proved by Russian Audit Chamber’s findings concerning the ineffectiveness of
financial expenditures in the «5-100» project.
In this way the relevance of the research theme is due to need for theoretical
development of the conceptual construct, modifying the model of organizational and
financial clearing for subsidizing government programs, adapting the algorithm for
applying social bonds to the education and science sectors of the Russian Federation,
justifying new methodological approaches and practical recommendations for developing
the system for financing government programs in the domain of education and science.
|
|
OPTIMIZATION COMPARISON OF ROUNDNESS ERROR IN WIRE- EDM MACHINING BY VARIABLE METHODS |
Author : S. Ajaya Kumar, Dr. A. Prabhu Kumar And Dr. B. Balu Naik |
Abstract | Full Text |
Abstract :Roundness error can be evaluated perfectly for the by product life after
manufacturing, leading the major criteria in assembly errors and vibration control
mechanisms. Components with round profiles must have to go for a quality check,
different optimal techniques like Least Squares Circle (LSC), Minimum Circumscribed
Circle (MCC), Maximum Inscribed Circle (MIC) and Minimum Zone Circles (MZC)
are available internationally to validate the error variations in roundness. This paper
focuses on roundness evaluation using nonlinear optimization techniques, for the
manufactured components in Wire- EDM. The Computer Aided Inspection (CAI)
procedures have gained a prominent role in the field of inspection and evaluation of
the manufactured parts. In the recent years, the Coordinate Measuring Machines
(CMMs) have gained popularity in automated inspection for both online and offline
inspection of manufactured components. Present comparison of practical components
inspection by CMM with optimal methods |
|
EXPERIMENTAL INVESTIGATION ON STABILITY AND COMBUSTION OF METAL NANO-PARTICLES AND THEIR ADDITIVES IMPACT WITH DIESEL AND BIO-DIESEL BLENDS IN DI DIESEL ENGINE |
Author : K.Anandavelu, K.Thiruvasagamoorthy, K.Gayathri and C.Ezhilarasan |
Abstract | Full Text |
Abstract :This project aims at a comparative study on Performance, Emission and
Combustion characteristics of Biodiesel when blended with Barium Oxide
nanoparticles in single cylinder DI Diesel Engine. Because of modernizations and
increase in number of automobiles worldwide, the consumption of diesel has
massively increased. As petroleum is non-renewable major source of energy and its
reserves are scare now a days, there is a need for research in finding alternative fuels
for automobiles. And also Bio diesels are renewable, nontoxic and eco-friendly fuels
that can play an important role in automobile industries. And this paper deals with the
transesterification of biological seed oil by means of methanol in presence potassium
hydroxide catalyst. The viscosity of biodiesel produced from biological seed oil is
nearer to that of the commercially available diesel. The biological seed oil is analyzed
by Gas chromatography and the important properties of biodiesel such as density,
flash point, cloud point, carbon residue are found out and compared with that of
ASTM – biodiesel standards and commercially available diesel. The study encourages |
|
Analysis of the Legal and Regulatory Status of the Basic Notions and Procedures of the State System |
Author : Chashkov V.N., Salykova O.S., Salykov B.R., Ivanova I.V., Baganov N.A and Binyukov Y.V |
Abstract | Full Text |
Abstract :The analysis of the dynamics of development of the legal and regulatory status of the
basic notions and procedures of the state system of ensuring the unity of measurements
of the Republic of Kazakhstan in the period
|
|
ZINC OXIDE NANOPARTICLES FOR WATER REMEDIATION IN AGRICULTURE |
Author : D. Gnanasangeetha and V. Prathipa |
Abstract | Full Text |
Abstract :Zinc oxide nanoparticle embedded in activated silica (ZnO-NPs-AS-Ai) as adsorbent
with nano cube shape were synthesized from leaf extract of Acalypha indica via green
method. Adsorbent were characterized using SEM, XRD EDAX and FT-IR. Exploration
shows that the adsorbent is nano cube shape with an average size of 80 nm with elemental
composition of zinc, oxygen and silica with Secondary amine at 2357 cm-1 and Olefinic
compound at 1600-1450 cm-1. The percentage of As (III) removal was very significant at
0.03ppm with arsenic removal of 79.47 to 96.19% with 2g adsorbent dosage at a pH of 6
with a contact time of 60 min and at an agitation speed of 300rpm. Results showed that
the adsorption process by ZnO-NPs-AS-Ai is monolayer chemisorptions. This research
uses existing principles of green chemistry to combat agricultural land contaminated with
arsenic (III) by bioremediation of water to prevent biological magnification |
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PROSPECTS FOR BIOMASS ENERGY USE IN THE REPUBLIC OF BURUNDI |
Author : J.A. Manigomba, N.D. Chichirova, V.B. Gruzdev, E. Ndikumana, A.I. Lyapin |
Abstract | Full Text |
Abstract :The article considers an alternative replacement of oil fuel for pyrolysis gas and
biogas, obtained from household and industrial waste in the Republic of Burundi. Studies
have been carried out concerning pyrolysis processing of both peat and solid agricultural
waste from rice, sorghum, peas, beans, corn, as well as studies of the biogas production
process from liquid waste from the palm-oil production mini-plant Kirekura-Muzazi in
Bujumbura. Characteristics of liquid wastewaters from the Kirekura-Muzazi mini-plant
were studied, physical and chemical parameters (pH, Alkalinity, DCO, DBO5, MES,
MVS, total nitrogen, DCO/N, dry matter concentration, and humidity) were obtained. The
composition of biogas produced from a mixture of liquid waste from a plant for palm oil
production, waste slaughterhouse, cow manure and pig manure is given. Also the authors
considered the possibility of reconstructing the diesel-electric generating unit of the
industrial group “Regideso” for biomethane with replacement of diesel fuel, which will
increase the service life of the engine, save diesel fuel, create sources of dual fuel, and
improve the operation of the gas-diesel unit without buying special spare parts.
Directions have been proposed to solve the problem of the shortage of primary energy
sources in the Republic of Burundi, and recycling of city and industrial wastes will also
solve environmental problems |
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STABILITY AND TOTAL RESISTANCE ANALYSIS OF CATAMARAN FISHING BOAT FOR JAVA NORTH SEA AREA WITH HULLFORM MODEL AND FISHING GEAR VARIATION |
Author : Kiryanto, Mohammad Ridwan, Berlian Arswendo Adietya, Deddy Chrismianto and Sri Hartanto Aji Sasongko |
Abstract | Full Text |
Abstract :Substitution of cantrang fishing gear with other gears might give bad impact to the
stability of the ship. But, catamaran boat type can improve the intended stability
characteristics. The study was conducted using six variations of the catamaran
hullform, namely symmetrical hull, asymmetrical straight inside hull, asymmetrical
straight outside hull, which is each model has round bilge and hard chine variation.
The study aims to find the lowest total resistance value. The hullform with lowest total
resistance will be re-varied to 3(three) different types of fishing gear, namely
cantrang, purse seine, and bottom longline for stability analysis. The result shows that
the round bilge symmetrical hull type has smallest resistance with value of Rt is 8.81
kN at 8 knots. Based on IMO MSC.36(63), the result of stability analysis shows all
variations of fishing gear meet the established standard |
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CONSTRUCTING AN INTELLECTUAL PROSPECT OF VENTURE MANAGEMENT PRACTICES: A DIVIDE BETWEEN INFORMAL AND FORMAL ELECTRONICS ENTREPRENEURSHIP |
Author : Adebanji Ayeni, Fred Peter, Henry Inegbedion, Taiwo Akinyemi, Mistura Sanusi, |
Abstract | Full Text |
Abstract :The practice of venture management has recorded success in the United States of
America and India. This brought about the turn-around of businesses, both prospect
and existing formal business operators in these nations. In the case of Nigeria, banks
and other financial institutions have ended up providing advice to successful firms to
acquire business organisation in distress and at times are the leaders in that
particular industry, thus bringing about unemployment. It is of a note that
entrepreneurs are the drivers of a nation’s economy irrespective of government
practices. It is based on this premises that the relevance of transition from informal
to formal entrepreneurship practices must occur for the existence of economic
growth. To bridge this gap in literature, a comparative study on venture management
practices and expected performance for practicing entrepreneurs in the informal and
formal sector is required |
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SELECTION OF CRITERIA FOR KEY PERFORMANCE INDICATORS BY THE MATRIX METHOD |
Author : : Lagodiienko Volodymyr, Malanchuk Marina, Gayvoronska Inna and Sedikov Denys |
Abstract | Full Text |
Abstract :An enterprise for successful competition on the market needs to carry out detailed
monitoring of the company activities in strategic focus, increase the efficiency and
effectiveness of management decisions, control the most important financial and nonfinancial performance indicators (KPIs) that are targeted for the company, and whose
degree of achievement determines the movement of the enterprise according to a given
strategy. The values of KPI reflect both the business performance in general and the
business processes that are considered separately, structural units and human
resources. The article proposed matrix method of optimizing the portfolio of products
to determine the main KPI. Also, on illustrative practical examples authors suggest
Strategic map (fragment) and KPIs matrices of the key employees of a company |
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USING BIG DATA ANALYTICS TO PREDICT AND REDUCE CYBER CRIMES |
Author : Dr. Fatma Mohamed Abdullah |
Abstract | Full Text |
Abstract :The challenges of crime prevention in today world are increasingly complex and
require new technologies that can handle the huge amount of confidential data
generated through different sources. Cybercrime is an important issue for research as
it affects many mainstream sectors such as defences, social media, government,
industry, private, military and scientific sectors. etc. Internet criminals use distorted
or hacked data to capture their actions. The development of the unpredictability of
digital interventions requires efficiency specialized and judicial examination. The
cybercrime rate is increasing and challenging the investigative personnel. Crimerelated data is increasingly being generated nowadays and is often digital in nature.
At present, data generated cannot be efficiently handled using traditional analysis
techniques. Instead of using traditional data analysis techniques it would be useful to
use big data analyses for this massive data. This paper will examine the analyse of
such data that were generated largely using big data analyses to provide
their analysis groups to the artificial neural network which in turn produces
a crime prediction pattern. So The police department can use the prediction
pattern to allocate its resources in order to reduce the crime rate |
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STUDY ON TENSILE STRENGTH ON ARTIFICIALLY AGED Al-Mg-Si ALLOY USING TAGUCHI’S TECHNIQUE |
Author : Gowri Shankar M.C, Y.M Shivaprakash, Jayashree P.K, Gurumurthy B.M and Sathyashankara Sharma |
Abstract | Full Text |
Abstract :Al-Mg-Si alloy is most preferred material by scientists and engineers for seeking
wide range of industrial applications as its strength can be easily enhanced by cold
working, grain size refining, precipitation hardening and dispersion hardening.
Demand for the use of Al-Mg-Si alloy is growing rapidly because it has unique
combination of properties, which make it as one of the most versatile engineering
materials. In the present study, attempt has been made for systematic investigation on
to know the implication of age hardening parameters like, Solutionizing Time, Aging
Temperature and Ageing Time on tensile strength of Al-Mg-Si alloy using Taguchi’s
Design of Experiments. A linear regression model is used to predict the response. The
derived results indicate that, the aging temperature and time has imperative impact on
the response whereas, solutionizing time does not have a significant effect. For a
definite group of parameters, the Ultimate Tensile Strength enhanced from 154 to 210
MPa, leading to an improvement by nearly 40% |
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DEVELOPMENT OF A LOCUST BEAN SEED DEHULLING CUM WASHING MACHINE |
Author : A.A. Okunola, T. A. Adekanye, A. Ayooluwa, C. E. Okonkwo, S. A. Alake, T.M.A Olayanju, A. D. Adewumi |
Abstract | Full Text |
Abstract :A wet locust bean seeds (Parkia biglobosa) dehulling and washing machine was
developed to reduce drudgery attached to traditional dehulling of the seeds which are
processed for use as condiment and flavours’ for food in many African countries. The
machine consisted of dehulling and washing units, the dehulling mechanism obtains
its drive from a 0.38 kW gear motor of 30 - 50 rpm. The dehulling shaft; has rods
arranged concentrically to break seed coat and radial fan - like blades used as stirrer.
The dehuller cum washer was evaluated based on boiling time of the seeds on an
electric cooker. The result indicated that efficiency of the machine increased linearly
with increase in boiling time. The throughput capacity decreased with increase in
boiling time and moisture content decreased with increase in boiling time from the
sixth hour. Dehulling efficiency ranged from 59.7 to 68 %, and cleaning efficiency
ranged from 83.4 to 87.4 % while average throughput capacity was 108 kg/hr.
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AN ASSESSMENT OF CONSUMERS ATTITUDE IN ORGANIC PRODUCTS USAGE PURPOSES AND DOMINANT GROUPS |
Author : D Solomon Christopher, C.B. Senthilkumar and S. Nallusamy |
Abstract | Full Text |
Abstract :The aim of this research is to understand the consumer behavior, attitude and usage
purposes of organic products in their daily life. The researcher was adopted survey
method to collect responses from 100 organic product consumers residing in Chennai city
of Tamil Nadu. The empirical results indicate that nine dimensions of usage purposes of
organic products were explored and the entire organic product consumers covered in this
survey are significantly classified into two groups such as, high users and moderate users
based on their attitude towards organic products consumption. To conclude, consumers
are advised to use more organic products due to health concern, and environmental
concern |
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MORPHOMETRIC ANALYSIS FOR PRIORITIZATION OF SUB-WATERSHED ON THE SERAYU BOGOWONTO RIVER BASIN |
Author : S.B. Lesmana, E. Suhartanto, A. Suharyanto and V. Dermawan |
Abstract | Full Text |
Abstract :Determining watershed priorities is one of the critical aspects of developing natural
resources around us. Morphometry is one of the natural parameters that form the
characteristics of a river catchment area and could be used for determining it.
Morphometry has three parameters such as linear aspect, relief aspect, and areal aspect.
The linear aspects consist of stream order (U), stream length (Lu), bifurcation ratio (Rb),
mean stream length (Lsm), stream length ratio (Rl), mean bifurcation ratio (Rbm). Relief
aspect consists of basin relief (Bh), relief ratio (Rh), ruggedness number (Rn). Areal
aspects comprise drainage density (Dd), stream frequency (Fs), texture ratio (T), form
factor (Rf), circularity ratio (Rc), elongation ratio (Re), length of overland flow (Lg),
constant channel maintenance (C The purpose of this research is to analyze morphometry
parameters of Serayu Bogowonto river basin of the sub-watershed priority determining.
This study aims to calculate and analyze characteristics of the sub-watershed of Serayu
Bogowonto river basin based on morphometry parameters using GIS and analysis for the
watershed priority. The data utilized in this study is the river network data published by
Bakosurtanal, and Digital Elevation Model (DEM) 30x30 ASTER GDEM then data
analysis is using Geographic Information System (GIS) technique with ARC GIS 10.1 The
prioritization based on morphometry analysis that is seven sub-watershed with high
priority, four sub-watershed with medium priority, six sub-watershed with low priority |
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THE DEVELOPMENT OF THE FINANCING SYSTEM OF STATE PROGRAMS IN THE FIELD OF EDUCATION AND SCIENCE OF THE RUSSIAN FEDERATION |
Author : Tatiana Viktorovna Krupa |
Abstract | Full Text |
Abstract :The implementation of the Russian Federation state policy covering the national,
regional and local levels, is designed for socio-economic impact through state
programs of the Russian Federation.
The message of the President of the Russian Federation to the Federal Assembly
of March 1, 2018 states that the development of Russia and long-term growth can
provide priority projects “in spatial development, investments in infrastructure,
education, health care and the environment, new technologies and science, economic
support measures, promotion of talents, youth”, as part of government programs
aimed at financial support of a new quality of life and innovative development,
modernization of the economy.
Achievement of the set strategic targets is possible due to the increase in the
effectiveness of public spending by adopting organizational, financial and methodical
measures to improve the system of financing state programs, including by
encouraging the attraction of private investment in government projects. |
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ANALYSIS OF DRAG AND LIFT FORCES IN DIFFERENT TAILED GROUND EFFECT VEHICLES |
Author : Pavan Hiremath, Manjunath Shettar, Suhas Kowshik C S, Rajath J and Sukhesh P D |
Abstract | Full Text |
Abstract :In recent days people are dependent highly on transportation and the demand for
quicker modes of transportation are increasing day by day. Technological advances in
the areas of roadways, airways and waterways have led to development of faster and
efficient vehicles which has largely contributed in connecting people across the globe.
This study deals with finding the effect of different forces acting on Ground Effect
Vehicles. Initially three different tail models were considered and modeled in CATIA
and then imported to ANSYS for further analysis. It was observed that the higher
pressure at tips is a result of the shape of the GEV and it causes drag, since it is
opposing the inlet flow. Lift is generated due to difference in pressures between top
and bottom surfaces of the wing, which is a consequence of velocity difference. The
pressure at top is much lesser that than bottom of the GEV, so lift is also generated.
However, it was found from L/D ratio that V tail displayed higher response for the
considered process parameters and boundary conditions.
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FOREIGN DIRECT INVESTMENT POLICY AS THE METHOD OF CONTROLLING FOREIGN INVESTMENT ACTIVITIES |
Author : Ary Zulfikar |
Abstract | Full Text |
Abstract :Foreign Investment is an important activity in order to improve economic growth and
prosperity of society. It needs to be supported with legal instruments that can guarantee
and protect the investments. The formation of legal instruments is strongly affected by the
economic and political interests of the country, therefore sometimes it goes against the
principle of legal certainty. By using normative jurisdictional research methods in this
study, the Author will discuss about the principles and concepts used by the government
to establish a policy on foreign investment. |
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TENSILE, IMPACT, FLEXURAL AND MORPHOLOGICAL CHARACTERISTICS OF PINEAPPLE LEAF FIBER REINFORCED POLYLACTIC ACID COMPOSITES |
Author : Darsan R S, Stanly Jones Retnam. B, M Sivapragash |
Abstract | Full Text |
Abstract :The composites are fabricated by reinforcement of various fibre composition of
short natural fibre into polylactic acid (PLA) by compression moulding. Untreated
pineapple (UPAL) and treated pineapple (TPAL) fibres are used as reinforcement
material to prepare composites of 10%, 15% and 20% fibre loadings. Tensile, impact,
flexural and morphological characteristics conducted on different fibre loaded
UPAL/PLA and TPAL/PLA composites. Tensile strength has increased to 40.78% and
44.33% for 10% fibre loaded UPAL/PLA and TPAL/PLA composites respectively. A
similar increase in tensile modulus of 20.8% and 11.47% for 20% fibre loaded
UPAL/PLA and TPAL/PLA composites respectively. The significant increase is noted
for the flexural strength and the flexural modulus of UPAL/PLA and TPAL/PLA
composites. Impact strength increases with increase in fibre loading. Ductile fracture
is noticed in UPAL/PLA composites, while brittle fracture is inferred in TPAL/PLA
composites from the SEM images.
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NORMALIZED GEOMETRIC INDEX: A SCALE FOR CLASSIFIER SELECTION |
Author : Krishna Sriharsha Gundu and Sundar S |
Abstract | Full Text |
Abstract :For years, the Machine Learning community has focused on developing efficient
algorithms that can produce very accurate classifiers. However, it is often much easier
to find several good classifiers based on dataset combination, instead of single classifier
applied on deferent datasets. The advantages of using classifier dataset combinations
instead of a single one are twofold: it helps lowering the computational complexity by
using simpler models, and it can improve the classification accuracy and performance.
Most Data mining applications are based on pattern matching algorithms, thus improving
the performance of the classification has a positive impact on the quality of the overall
data mining task. Since combination strategies proved very useful in improving the
performance, these techniques have become very important in applications such as
Cancer detection, Speech Technology and Natural Language Processing .The aim of this
paper is basically to propose proprietary metric, Normalized Geometric Index (NGI)
based on the latent properties of datasets for improving the accuracy of data mining tasks. |
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ENERGY-ENTROPY MODEL FOR ASSESSMENT OF ECONOMIC SYSTEM MANAGEMENT |
Author : Natalia Natocheeva, Ludmila Goloshchapova, Olga Veremeeva, Marianna Nazaeva and Victor Moroz |
Abstract | Full Text |
Abstract :The authors provide a theoretical description of the system and propose a method for
calculating the optimal directions of innovation management, which allows us to give a
comprehensive assessment of the adopted innovative solutions and indicate the reasons
hindering effective innovation activity. This research examines energy-entropic methods
for evaluating the efficiency of production and management, as an effective method of
managing innovation, mainly by optimizing the use of energy consumed based on the
achievements of science and technology. The proposed entropic assessment of the state
of the parameters of the production system provides the possibility of assessing the change
in the state of these parameters by a single relative indicator and the synthesis of these
estimates into a single economic image of the current production situation. |
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EROSION RATE OF HVOF SPRAYED CRCNICRFESIBCOC (80%-20%) COATINGS OF COMPARISON WITH SUBSTRATE METAL SS316 |
Author : Navinesh BC, Dr.Somasundar B and Mamatha.M.P |
Abstract | Full Text |
Abstract :In the present study, coatings were deposited on CrC-NiCrFeSiBCoC(80%-20% )a
Fe based SS316 steel substrate to reduce the damage caused by erosion boiler
applications. Erosion studies were conducted on uncoated as well as HVOF coated steels.
The erosion experiments were carried out using an air-jet erosion test rig according to
ASTM G-76 standard at a velocity of 30 m/s and at different impingement angles of 30°,
60° and 90°. The HVOF spraying leads to a high retention of CrC in the coating matrix
accompanied with lower porosity The high velocity oxy-fuel (HVOF) sprayed CrCNiCrFeSiBCoC(80%-20% )coatings on 316SS boiler tube steal exhibit composite ductile
or brittle modes of erosion under angular alumina sand erodent of size 50 impacted
at 30m/s. The HVOF spraying leads to a high retention of CrC in the coating matrix
accompanied with lower porosity |
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EFFECT OF ADDING ALUMINIUM MICROPARTICLES TO CONVENTIONAL GLASS IONOMER CEMENT |
Author : Howrah M.A. Abbas, Ahmed R. Alhamaoy |
Abstract | Full Text |
Abstract :Glass Ionomer Cement (GIC) is one of the important dental materials used in
dental clinics, which is usually used in temporary restorative stages. This study aims
to evaluate the effect of adding Al micro particles to GIC powder (Riva self-cure) on
the mechanical and physical properties.The results showed that the addition of Al
micro particles has improved the compressive strength and biaxial flexural strength
where the highest values were at 3 wt. %, and then the compressive strength and
biaxial flexural strength decreased with increasing the added ratios. The addition of
Al particles improved the surface Vickers microhardness values where the highest
value was at 5 wt. %. The addition of Al has decreased the wear resistance of GIC;
however the wear resistance increased with increased adding ratios. The most acidic
beverages (the lowest value of pH) were the most effective in increasing the
absorption and solubility percentage of Al samples. Orange juice was more effective
followed by cola and then coffee and tea were less effective. We recommend that
patients reduce these acidic beverages because they have a harmful effect on dental
fillings |
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DESIGN AND FABRICATION OF A MOTORIZED/ POWER OPERATED PLANTAIN SLICER FOR OPTIMUM CHIPS PRODUCTION |
Author : C. A. Ezugwu, C. O. Osueke, A. O. Onokwai, R. S. Diarah, T. M. A. Olayanju, S. O. Braimoh, O. Olawale, F.C. Nnaji |
Abstract | Full Text |
Abstract :In Nigeria, plantain chips are in high demand and this demand is not being met by
most small scale food industries and shops due to some critical factors. Shops are only
able to fulfill approximately two-thirds of the demand. The biggest obstacle towards
attaining self-sufficiency in the production of plantain chips is the intensity of labor
involved and the tediousness of the process which often culminate into prolonged
production time. Plantain has a large amount of sap and this causes the skin to adhere
to the fruit inside. After peeling, they must be sliced into discs to fry into chips. Worker
will hold up to eight plantains in one hand and rapidly slice them using a wooden
mandolin. Because of the rapid pace at which they slice plantain and the absence of hand gloves on the workers, accidents are very often unavoidable. These presents
health hazards to both the worker, who may develop infections from their injuries, and
customers who may consume an unsanitary product. This development is very
uncomfortable and tasking on the workers. They must hold the mandolin over the fryer
so the plantains will fall in, which causes splashing of the boiling hot oil that
occasionally hits and injures the worker.
This research focused on design and fabrication of motorized / power operated
plantain slicer to meet the raising demands for plantain chips in Nigeria. The
objectives of this research was met as the machine has the capacity to produce
plantain chips of uniform size in shorter time and a greater slicing efficiency of up to
96.84% while keeping the cost of the machine at an affordable price |
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INVESTIGATION ON MECHANICAL PROPERTIES OF GAS METAL ARC WELDED STAINLESS STEEL SPECIMENS USING AND TAGUCHI METHOD |
Author : M. Vinosh, S. Vignesh M. Vignesh Moorthy S. P. Vinith and V. M. Pream prakas |
Abstract | Full Text |
Abstract :Gas metal arc welding (GMAW) process is most widely used in industries for
fabrication works, due to higher productivity. The weld quality depends on the process
parameters of GMAW. This research investigates the influence of process parameters
affecting the mechanical properties of weldment. Thus, identification of the GMWA
process parameters that significantly affect the quality of GMWA processed parts is
more important in terms of productivity. Then process environment has been assumed
consisting of four variables like welding current, welding voltage, shielding gas, gas
flow rate and wire feed rate. Taguchi optimization technique has been applied to
determine the optimal limits, which can maximize the GMWA quality in certain
environment. Signal to noise ratio (S/N ratio) were calculated for each data and used
to obtain the optimum level of every input parameter. The study also shows that the
use of the Taguchi Method has productively enhanced on the existing process
parameters. |
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ACHIEVING BEST PRACTICES IN LOG PRE-PROCESSING FOR FACIES AND PERMEABILITY MODELING |
Author : Olabode Awuyo and Adesina Fadairo |
Abstract | Full Text |
Abstract :This paper relates the best practices in Log preprocessing in Petrophysics which
are necessary to have a good model for Facies and Permeability. The well-logs which
were used for the Electrofacies modeling and permeability modeling consist of
Gamma-Ray(GR), Bulk Density Porosity(RHOB) Neutron porosity(NPHI).
Meanwhile, the model distinct type of facies consists of sand, Shaly sand, and shale.
Precise Electrofacies sorting was accomplished by the Multi-Resolution Graph-based
Clustering (MRGC). The improvement in the Logs from the Well-X1 after undergoing
pre-processing like Log Normalization, Compaction Effect Removal, Fluid Effect
Removal returned the logs to their natural states and were used as input into MultiResolution Graph-based Clustering (MRGC) model to produce better output Facies
and Permeability when compared to the Output which did not undergo preprocessing. These practices can be utilized to validate very good Facies and
Permeability Models |
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PERCEPTION OF STUDENTS ENTREPRENEURSHIP EDUCATION AND THE EMERGENCE OF E-STARTUPS IN A NIGERIAN UNIVERSITY |
Author : PETER Fred Ojochide, OLOKUNDUN Maxwell, PETER Adeshola Oluwaseyi, OLUDAYO Olumuyiwa, Adebanji Ayeni, IBIDUNNI Stephen and OLAMIDE Oluwabusola Akintimehin |
Abstract | Full Text |
Abstract :Entrepreneurship education is considered a vital tool for nurturing talents and
redirecting the energy of young people for profitable engagement and economic
growth. This study investigated the perception of students on entrepreneurship
education as it relates to the emergence of E-start-ups in Nigeria. The study used
quantitative method based on survey approach for the collection of data. A total of
306 copies of questionnaire were administered to 200-500 level students in a Nigerian
university. This study used simple random sample under the probability sampling
technique for the selection of the respondent. Hence, each member of the population
was given equal chance of being chosen from the population in no particular order.
The criteria for the selection is 200-500 students of various colleges (College of
Business, Social Sciences, Engineering, Science Technology and others) in Nigeriaoffering courses on entrepreneurship programme. There are total of 306 respondents
for this study. Regression analysis was used to analyse the stated hypotheses through
statistical package for social science. The result of the analysis revealed that
entrepreneurship education has significant impact on the emergence of e-start-ups.
Based on the findings, it was recommended that university system should reform
curriculum contents to better facilitate creation of e-start-ups
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|
GST IMPLICATION ON SALES OF AUTOMOBILE INDUSTRY WITH REFERENCE TO TATA MOTORS |
Author : Charumathi S, Dr. Rampilla Mahesh, Dr. Ranjith Kumar S |
Abstract | Full Text |
Abstract :In this present generation, individuals are highly sophisticated in their life
standard as it is directly determined by their individuals and family income. Pool of
earnings in a family take them to next level life style. Copy and comparison are the
two important C’s which influence the individuals to lead their life in comfort t zone.
In the last two decades people are totally isolating to prefer public transport. Heavy
traffic penetrates the individuals to frustrate, in turn it leads to attract to buy their
own vehicles. A competitive corporate culture encourages them by launching new
modern two and four wheeler with different amenities at competitive price. Financial
institutions are also supporting them to buy vehicles at easiest instalments. At last,
these proportionately increase more automobile products. These automobile
industries directly contribute the GDP to our nation. The recent GST also encourages
the buying habit of automobile products. These positive tax regime definitely develop
the automobile sector to the reasonable extent. This research paper has made an
attempt to undergo the tax implications of automobile products with reference to
TATA motors. The study conducted based on the reliable facts from the company site
and financial reports for the period for 4 years from 2014 to 2018. Observation
method also applied to perceive the users, retailers and Dealers preference about the
GST implement about automobile sector |
|
BIOFUEL PRODUCTION FROM MARINE MICROALGAE Nannochloropsis Salina USING PAPER MILL EFFLUENTS |
Author : P. Gurumoorthy, A. Saravanan |
Abstract | Full Text |
Abstract :The use of fossil fuels is unsustainable due to limited supply and also due to large
emissions of Carbon dioxide due to the effect of global warming. Biofuel is a viable
option but can, as produced today; only provide a limited amount of fuels needed.
Biofuels are presently derived from terrestrial plants, which require large amounts of
arable land. Biofuels from microalgae on the other hand do not necessarily require
arable land and can theoretically replace fossil fuels absolutely. Biofuels from
microalgae could use industry waste water as growth medium particularly paper
industry waste water is an interesting potential provider due to its high nitrogen and
phosphorus in waste water. In this research work marine microalgae Nannochloropsis
Salina was cultivated using f/2 medium using modified air lift photo-bioreactor along
with the paper industry effluent waste water, The doubling time calculated from
optical density attained at 48 hrs the cell count almost doubled during this period.
Since the marine species is sensitive to pH we need to maintain the pH at 7 below
7indicated the decreased biomass levels in culture. The lipid extraction was studied
using solvent methods. The functional compounds in lipids FAME were studied using
GC-MS analysis, the Nannochloropsis salina showed qualities of growing in fresh
water and brackish water apart from the marine water which is a desirable
characteristic for algal phycoremediation |
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VEHICULAR SPEED DETERMINATION USING CELLULAR AND GEO-SPATIAL INFORMATION |
Author : Reuben S Diarah, Samson A Oyetunji, Christian O Osueke, Anthony O Onokwai and Chinedu A Ezugwu |
Abstract | Full Text |
Abstract :The rapid increase in the occurrence of road accidents in Nigeria requires the
deployment of real time techniques that is equipped to reduce one of the critical
factor that have been identified by the Federal Road Safety cooperation of Nigeria
(FRSC) that constitute the major cause of road accidents which is over speeding. This
was achieved through the design and implementation of real time vehicle speed
monitoring system using cellular signal along the travelled path. A data acquisition
device was developed to capture in real time the signal strength and geospatial data
(longitude and latitude) along the travel path which is used in determining the speed
of the moving vehicle. The acquired data was correlated with data obtained from
standardize equipment to establish the integrity of the data, the data was then used to
develop the algorithm by obtaining equation for the path-loss gain in terms of signal
strength against distance. Equation for the base stations covering a distance of 10km
were obtained for analysis. Consequently from the equation, the distance from two
locations along the route can be determined from corresponding signal strength
values, the average speed results for the drive test, new Model and using Latitude and
Longitude are compared as followed 88.05km/hr, 75.67km/hr and 88.2km/hr respectively. With this a new paradigm shift in vehicular speed management is
developed based on Cellular signals for real time vehicular speed determination |
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A COMPARISON BETWEEN THE PHYSICAL FITNESS EXERCISE 2008 AND PHYSICAL FITNESS EXERCISE 2012 ON THE PHYSICAL FITNESS OF THE ELEMENTARY SCHOOL STUDENTS OF PADANG SELATAN DISTRICT, PADANG |
Author : KAMAL, Firdaus |
Abstract | Full Text |
Abstract :This study is based on the different implementation of Physical Fitness Exercise in
several elementary schools of Padang. During their morning routine exercise, the
State-Owned Elementary School Number 20 Alang Lawas practice the Physical
Fitness Exercise 2012, while the State-Owned Elementary School Number 34
Seberang Palinggam practice the Physical Fitness Exercise 2008. The objective of this
research is to find out which version of the Physical Fitness Exercise is more effective
in increasing the physical fitness of the elementary students in Padang Selatan
District, Padang.
This study is Ex Post Facto research. The research population was the female
students of the 4
th, 5th and 6
th graders of the State-Owned Elementary School Number
20 Alang Lawas and the State-Owned Elementary School Number 34 Seberang
Palinggam, City of Padang. The study usesthe sampling technique of the cluster
random sampling and employs 106 students as the sample, which consists of 52
students of the State-Owned Elementary School Number 20 Alang Lawas and 54
students of the State-Owned Elementary School Number 34 Seberang Palinggam.
Data were analyzed with a statistical analysis of a t-test.
From the data I found based on the results of my research, that Physical Fitness
Exercise 2012 is better to be used in elementary schools, than using Physical Fitness
Exercise 2008.
The study found that the Physical Fitness Exercise 2012 has more effective effects
in improving the physical fitness of the students compared to the Physical Fitness
Exercise 2008. Based on the hypothesis test, it showed that the physical fitness level of
the students at the State-Owned Elementary School Number 20 Alang Lawas was
classified as moderate with an average score of 16.5, while the physical fitness level ofthe students of the State-Owned Elementary School Number 34 Seberang Palinggam
was also classified as moderate but with an average score of 14.42 |
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INVESTIGATION OF THE EFFECT OF TEMPERATURE ON THE RATE OF DRYING MOISTURE AND CYANIDE CONTENTS OF CASSAVA CHIPS USING OVEN DRYING PROCESS |
Author : Ugochukwu C Okonkwo, Anthony O Onokwai, Chinedu L Okeke, Christian O Osueke, Chinedu A Ezugwu, Reuben S Diarah, Charity O Aremu |
Abstract | Full Text |
Abstract :This research was aimed at investigating the effect of temperature on the rate of
drying moisture and cyanide contents of cassava chips using oven drying process.
Five varieties of raw cassava (Manihot Esculenta, Crantz) namely TMS 98/0510, TME
419, TMS 97/2205, NR 87184 and TMS 96/1632 were harvested at twelve (12) months
after planting (MAP) from the experimental plots of the Enugu State College of
Agriculture and Agro-Entrepreneurship Iwollo-Ezeagu Enugu, Nigeria. For each of
the varieties 2kg of tubers were processed. The results from the research showed that
processing of the cassava tubers into dried cassava chips using oven process resulted
in an acceptable level of moisture and cyanide contents which were in conformity withthe compositional requirements for dried cassava chips. The graph showed that higher
the temperature, the faster the rate of drying of the chips. Moreover, the drying rates,
moisture and cyanide contents were affected by the drying temperatures. |
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AIR GASIFICATION OF CHAR DERIVED FROM PONGAMIA DE-OILED CAKE IN A FLUIDIZED BED REACTOR |
Author : Joseph John Marshal S, T. Michael N Kumar, Z. Robert Kennedy, Kondru Gnana Sundari |
Abstract | Full Text |
Abstract :This work presents the experimental results of gasification of char derived from
pyrolysis of Pongamia deoiled cake at maximum oil condition. Experiments are
conducted in fluidized bed reactor using air as the gasifying agent. The gasification
temperature and equivalence ratio (ER) were varied as per the designed experiment
using central composite design to study the influence on the composition of the
product gas. The lower heating value (LHV), Gas yield (GY), carbon conversion
efficiency (CCE) and cold gas efficiency (CGE) were calculated from the data of the
composition of the gas. The experiments were carried out in the temperature range of
600-800 °C, equivalence ratio of 0.26-0.36. Regression equations were proposed as a
function of temperature and ER for H2, CO, CH4 and CO2 in the range of
experimental conditions. The results showed that at a temperature of 800 °C and ER
of 0.35, maximum cold gas efficiency of 52.04% was achieved. The optimum input
parameters were identified for maximum gasification efficiency. The product gas with
highest LHV, 5 MJ/Nm3 was obtained at 600 °C temperature, 0.26 ER. The product
gas obtained through gasification of this kind of char can be used as fuel for syngas
engines, for power generation and process heat applications. |
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NUMERICAL ANALYSIS OF VISCOELASTIC PROPELLANT GRAINS SUBJECTED TO PRESSURE LOAD |
Author : Gowrishankar M C, Nitesh kumar and Jayashree P K |
Abstract | Full Text |
Abstract :Idealized solid propellant is models is analysed for thick sphere subjected to internal
pressure, whose casing is made of composite materials,. Results obtained from present
elements are compared with analytical results and 8 noded counterpart of MARC. Solid
Rocket Motor (SRM) is developed based on casting method where solid propellant grains
are cast into a composite or metallic casing. Generally, SRMs are exposed to extreme
loading scenarios during storage, transportation, and firing, leading to cracks in the solid
propellants. In this paper, Computational Finite Element Analysis is performed with
developed 8 node quadrilateral, 9 node quadrilateral and 6 node triangular elements
using Herrmann formulation to analyze stress and strain variations in the mid segments
of the typical SRM subjected to pressure loading. The obtained results are compared with
commercially available Finite element software. |
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EXPOSITORY MODELING OF STRAIGHT AND INTERMITTENT MILL TOOL HOLDER |
Author : Yaser Hadi |
Abstract | Full Text |
Abstract :On account of cutting gadget holder preoccupation, cutting force affects the
dimensional precision. The troublesome of equipment holder redirection is attempted
routinely in a course of action of building surface things, and to accomplish this point
uninvolved strategy can be utilized. In this unassuming work, a refreshed hypothetical
momentous cutting force appear for end getting ready is open, utilizing confined part
approach. The model be committed to variable data sources, pick the kind of the end
procedure holder, in the event that it is straight or discontinuous. The cutting
parameters are given for getting a perfect preparing instrument redirection dispersing
and rehash an area examination. The expansion results demonstrate that the
instrument evading impacts the dimensional precision of the completed part. The
essential structures of pulled back technique for distraction mask of mechanical
frameworks are quickly exhibited. It depends upon the hypothesis of dynamic
redirection. For handling forces and gadget holder redirection, two sorts of instability
show yields are shown identifying with cutting force parameters.
|
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INVESTIGATION ON CNT BASED TRANSISTOR WITH COMPARATIVE ANALYSIS OF ZnO & Al2O3 AS GATE DIELECTRICS |
Author : S.K. Suresh Babu, Naveen Kumar, D. Jackuline Moni |
Abstract | Full Text |
Abstract :The present study investigates on the single walled carbon nano tube (CNT) based
transistor and with comparative analysis of Zinc Oxide (ZnO) and Aluminium Oxide
(Al2O3) as gate dielectric films. Structural properties of these gate dielectric films
were analysed and reported. Array network of single walled carbon nanotube
(SWCNT) was formed as a channel in field effect transistor (FET) by drop casting
method. At room temperature gate dielectric (ZnO and Al2O3) films were deposited by
using pulsed laser deposition. Various electrical parameters were analysed for the
fabricated SWCNT/Al2O3 and SWCNT/ZnO FET’s. The achieved threshold voltage
(VTH), ION and IOFF are 0.6 Volts, -2.88mA and -2.19mA was observed for CNT/Al2O3
FET and 0.2Volts, -2.19mA and -4.99mA was observed for CNT/ZnO FET
respectively. |
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DEVELOPMENT OF METHODS AND TOOLS FOR TEXTILE PACKAGE STRUCTURE CONTROL |
Author : Mahammadali Nuraddin Nuriyev, Zabit Yunus Aslanov, Sevinc Museib Abdullayeva and Mehriban Suleyman Zeynalova |
Abstract | Full Text |
Abstract :There is a sufficient level of raw materials, material resources and material technical
base, as well as human resources for the development of textile and light industry. The
objective of the study is to increase the efficiency of textile production through the
development of tools and methods for controlling the structure and properties of
packages. The study considered the classification of these properties and their
characterizing performance. A new classification of geometric, general and special
properties is proposed that affect the design parameters of the winding mechanisms and
the course of the production process. Existing methods and means of controlling the shape
of textile packages are also considered. Mechanical, hydraulic and optical methods of controlling the structure and shape of the package are analyzed. It is established that the
structure of the winding affects the quality of the packages on subsequent process
transitions. For this purpose, a winding structure analyzer is proposed for controlling the
winding structure |
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ASPECTS OF ELECTROCHEMICAL REACTION MECHANIS OF MAGNETITE REDUCTIVE LEACHING IN SULFURIC ACID MEDIUM |
Author : G.V. Petrov, S.B. Fokina, A.Ya. Boduen, B.F. Fidarov and I.E. Zotova |
Abstract | Full Text |
Abstract :Inevitable depletion of mineral reserves involves search for the new alternative
sources of non-ferrous metals, in particular, noble metals. Chromite ores in dunite,
conventionally treated as refractory materials, are considered to be a prospecting
feedstock of platinum group metals. Studies were performed on platinum group metals
production as by-products for low-grade dunite ore processing. Gravity-magnetic
flowsheet for dunite concentration allows to extract magnetic platinum-containing
concentrate with high content of magnetite and platinum-ferriferous alloys. Reductive
leaching in sulfuric acid medium was considered as advanced method of refining of
magnetic platinum-containing concentrate from iron. Electrochemical studies of
magnetite cathode reduction in sulfuric acid medium showed that magnetite rate of
solution is increasing with potential shift to cathode region under increasing solution
acidity and higher temperature. Kinetics of cathode process can be determined by
electrolyte parameters and catalytic impact of cations of ferrous iron formed. |
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DOES THE TOTAL QUALITY MANAGEMENT ENHANCE THE QUALITY? EVIDENCE FROM SELECTED MANUFACTURING UNITS; BRICKS |
Author : Harshitha M and Dr. Ravi Kumar |
Abstract | Full Text |
Abstract :In the study an attempt was made to know the different total quality management
practices adopted by the selected manufacturing brick units and effects of it on the
process thinking, customer satisfaction, employee commitment, strategic thinking,
integrated system, decision based on facts, continuous improvement and effective
communication . The elements of total quality management has been studied about the
quality enhancement, increase in customer base, profitability and sales. The data was
collected through primary sources as company records and field observations. The
study was conducted to know more about the TQM practices followed by the selected
manufacturing units. In those days they used to take more time for manufacturing the
bricks and now the time maintenance has been able to manage. The company’s growth
was realized only after adoption of TQM and it has been able to increase their
customers. Dynamic thinking process was adopted wherein they were able to assess
and give the changes that are happening in the market.so we can conclude by saying
that total quality management has brought the considerable changes in the
organization |
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INSOLVENCY LAW AND BUSINESS RECOVERY PRACTICES IN NIGERIA’S UPSTREAM PETROLEUM SECTOR: THE NEED FOR A PARADIGM SHIFT |
Author : Olujobi, Olusola Joshua and Olusola-Olujobi, Temilola |
Abstract | Full Text |
Abstract :Insolvency and business recovery practices are not at infancy stage in Nigeria,
although it has not crystallized to a full profession as it is practiced in other relatively
advanced climes. As the global financial sector evolves, the focus of modern
insolvency and business recovery practices have shifted from winding up of insolvent
oil companies to reorganization, restructuring of such companies and its operations to
foster economic stability and financial propriety. But the case is the reverse in
Nigeria, as liquidation is seen as the panacea to insolvency. The study evaluates
Nigerian insolvency and business recovery laws to sustain modern businesses
practices to prevent incessant corporate failure. Many jurisdictions are now
overhauling their insolvency and business recovery laws to support business practices
and to reform the gaps identified. The study conducts comparative legal and policy
analyses of solvency and business recovery laws in Nigeria, Malaysia, India, South
Africa, United Kingdom and United States. These countries were selected because
their insolvency and business recovery laws are business rescue driven. The study is a
doctrinal legal research that adopts a point-by-point comparative approach with
library research method. The study finds that Nigerian law on insolvency seems
deficient with regard to business rescue, turnaround and restructuring. It concludes
that, regulatory agencies in the selected countries are more effective than those in
Nigeria because of the political will of the governments of the former to successfully
turn around insolvent oil companies, save jobs and protect creditors by optimising
businesses through restructuring and business turnaround strategies. The study
therefore recommends reform of Nigeria’s insolvency and business recovery law and
practices in conformity with the global best practices on insolvent companies rescued
and creditors driven strategies for healthy economy |
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CINEMATIC PERFORMANCE IN THEATRICAL SHOW |
Author : Dr. Sarmad Saleem Abbas |
Abstract | Full Text |
Abstract :The study of the relations between the arts can lead to the causes of the spread of a
particular culture at a certain time in which it constitutes a technical development. The
actor did not start appearing through the screen in a theatrical performance without
accepting a year to collect the art of cinema with the art of the theater. The audience
understands the language of the picture and belongs to its contemporary culture. The
performance of the actor is cinematic in his performance in the cinematic theater, but this
performance is different from the art of cinematography, the representative scene is not
presented within the scenes of a film, and this performance is different from the art of
theatrical representation, the representative scene is not presented on stage. The
performance of the actor through the cinematic screen in the play is no less important in
the play than the actor on the stage in the contemporary theater. The use of cinematic
scenes in the play establishes a representative performance that is centered between the
stage and the screen. In the combination of theatrical and cinematic performances, a
frame of special artistic character characterizes the representation of features that
combine the performance of theater and cinema |
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DEVELOPMENT OF A SMART AUTONOMOUS MOBILE ROBOT FOR CAFETERIA MANAGEMENT |
Author : Ademola Abdulkareem, Victoria Oguntosin, Adeniran S. Afolalu and Adaobi Onyeakagbu |
Abstract | Full Text |
Abstract :The main aim of this work is to use a robot in a typical cafeteria environment to deliver
food from the main counter to the customer’s table, thereby acting as a mobile robot
waiter. This study is essential in order to promote efficiency in serving food to customers.
The robot uses an Arduino microcontroller to run a program with a combination of RFID
technology, a line following module and an obstacle detecting system. The Radio
Frequency Identification (RFID) reader is fixed on the robot itself, and reads the RFID
passive tag which is placed under the serving tray. The RFID application allows the robot
to identify the right table that is to be served and the robot moves to the respective table
based on the tag. The uniqueness in the design of this serving robot is the application of
the obstacle detection and collision avoidance, together with the integration of RFID
technology. The findings from this research provide evidence that the robot is able to
move according to the described path |
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SURVEYS FOR ARTIFICIAL IMMUNE RECOGNITION SYSTEM AND COMPARISON WITH ARTIFICIAL NEURAL NETWORKS AND SUPPORT VECTOR MACHINES IN INTELLIGENT FAULT DIAGNOSIS OF ROTATING MACHINES |
Author : Abdulrazzaq A. Abdulrazzaq and Jaffer K. Ali |
Abstract | Full Text |
Abstract :In this Paper, surveys, application, and comparison of three types of artificial
intelligence in machinery fault diagnosis: Neural Network, Support Vector Machines, and
Artificial Immune Recognition System have been introduced.
Selecting the correct features is the most important thing in training and diagnosis
field and it is the core issue of this field, in this thesis, a trial is made to improve the
accuracies of the three proposed methods by trying to select the proper features from time
domain. The training is done by using the data collected from two-channel, horizontal
and vertical in three cases first, both time and frequency domains are used as features
input to the three proposed methods, secondly, using frequency domain only or thirdly,
using part of the time domain features with frequency domain features; for two speed. All
the three methods show excellent accuracy when training and diagnosis at same specific
speed especially SVM, while the accuracy is low when diagnosis at a speed that differs
from training speed. Also all the three methods give excellent diagnosis results when the
applied load at the same speed of training speed. |
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A CRITICAL EVALUATION OF GEN-Y BUYING BEHAVIOR TOWARDS ONLINE FASHION RETAILERS |
Author : Dr. Kiran.G, Dr. D.N. Murthy, Dr. Nila Chotai and Dr. Pradeepa |
Abstract | Full Text |
Abstract :In India the pace of online users has been faster with users being more comfortable
to buy online for apparels, footwear and fashion accessories when compared to other
countries (Forrester research)1 and the consumers are becoming more mature by passing
time.On the other hand business to consumer e-commerce has also shown a major growth
in the GDP from the year 2009 from 0.13% to 0.21% in 2017 as percentage of GDP in
India (The Statistics Portal) and expected to touch 0.24% by end of 2018.A number of
business today have gone online from the traditional stores not just to sell online but also
for various marketing strategy. For consumers who want to shop online the platform well
known for e-commerce is business to consumers (B2C) which includes online shopping
for all their needs. This study was conducted to analyze the shopping patterns of
millennials when to comes to the clothing brands online the study was conducted in
Bangalore city covering the age group of 23-35 year youngsters and the study indicated
a significant relationship between the buying behavior and the factors influencing the
young buyers to buy the clothing brands from the online portals. The study was
exploratory in nature covering important variables identified.
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ANALYSIS OF DAILY STOCK TREND PREDICTION USING ARIMA MODEL |
Author : Mohankumari C, Vishukumar M and Nagaraja Rao Chillale |
Abstract | Full Text |
Abstract :In literature of time series prediction the autoregressive integrated moving
average(ARIMA) models have been explained clearly. This paper using the ARIMA
model, elaborates the process of building stock trend predictive model. Published
data of stock price obtained from National Stock Exchange (NSE) during the period
from Jan-2007 to Dec-2011. The results obtained revealed that for short-term
prediction the ARIMA model which has a strong prospects and for stock price
prediction even it can be positively compete with existing techniques.
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A STUDY ON THE ANALYSIS OF CRITICAL SUCCESS FACTORS BEHIND MOTIVATION FOR ADOPTING ERP IN MANUFACTURING UNITS: A CASE STUDY OF KERALA STATE |
Author : Arjun K Sunil and Sriranjini S |
Abstract | Full Text |
Abstract :Manufacturing is a key infrastructure element needed for smooth operations of any
countries economy. Indian manufacturing sector is currently in the development stage
that changes quickly and change the way they operate in the past. Enterprise Resource
Planning provides one of the most significant factors or contributing factors to the
integrated environment utility. The success of ERP implementation depends on some key
convention factors, often referred to as CSF (Critical Success Factors). Some of these
factors do not matter what the business area or domain is, it is common, but some of this
factors are definitely the industry related specific factor in nature. The current research
study is based on the search for such kind of industries, namely (manufacturing industry
and distribution operations) specifically for the accomplishment of ERP implementation. |
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DESIGN AND ANALYSIS OF UGV WITH ROCKER BOGIE MECHANISM FOR LANDMINE EXTRACTION |
Author : Nithesh Naik, CS Suhas Kowshik, Dasharathraj K Shetty , Rajesh Gopakumar, Namesh Malarout |
Abstract | Full Text |
Abstract :Landmines are one of the earliest & deadliest devices used in military to destroy
enemy targets. Mines are deployed in various terrains and hence the extraction of mines
could be a challenging task. Under such circumstances, an Unmanned Ground Vehicle
(UGV) with a rocker bogie mechanism would be able to accomplish the given task. Hence,
a UGV with rocker bogie mechanism has been designed for the purpose of landmine
extraction. The designed UGV is driven by two motors. One motor mounted to the wheels
is responsible for the linear movement and the other is responsible for the steering. The
rocker bogie mechanism is a six wheel standard design which acts as the suspension
system that works in tandem with the differential and helps in rolling and maneuvering of
the UGV in all terrains. The robotic arms and end effectors are designed for the extraction
of the land mine. The End effector has two tools viz. drill bit and robotic grip. The drill
bit helps in drilling all around the mine and the grip picks up the mine from the pit. The
UGV is designed based on various design calculations and modelled using Autodesk
Fusion 360 Software. The 3D model is further analyzed using Ansys Workbench software
by simulating the various loads acting on the critical joints. At the end of the study it was
found that the designed model did not prove any kind of failure during the simulations.
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A STUDY ON THE ROLE OF WOMEN ENTREPRENEURS IN MANAGING THE FINANCIAL RESOURCES OF THE FIRM |
Author : G.Jayashree and Dr.I.Carmel Mercy Priya |
Abstract | Full Text |
Abstract :Finance is the life-blood of any business. In the early times every entrepreneur’s
motive was to earn profit and expand the business. But in the present scenario, the
survival of any business depends highly on the growth of the firm’s stakeholder’s. Today
majority of the organization suffers from huge business loss due to the wrong decision
taken in managing the financial resources of the firm. The study of Financial Management
helps the organizational managers in making the right decision in procurement,
allocation and distribution of returns to the shareholders. Likewise a women entrepreneur
must understand the various risks involved in fund management. She has to take a right
decision regarding fund financing firms at lowest interest rate and easily payment
options, better investment opportunities prevailing in the economy and the means of
earning profit and distributing the same if the firm has more employees. This paper
revolves around the various problems faced by women entrepreneurs in procuring finance
to run their business. The study was carried out in Salem district, Tamil Nadu (India). |
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BEHAVIOUR OF THREADED CYLINDER TOOL IN THE FRICTION STIR WELDING OF AL-ZRB2 AND AL-SIC COMPOSITE |
Author : P. Jayaseelan and T. V. Christy |
Abstract | Full Text |
Abstract :Friction Stir welding is a solid state joining process of using without any filler
material. In this work, two base materials likely Al-MMC’s are used namely Silicon
Carbide and Zirconium di-Boride are used. Hardness Rockwell Value and Tensile
Strength Tests are evaluated to the various tool material respect to Al-ZrB2 and Al-SiC.
Threaded Cylinder Tool made of the materials likely OHNS, HCHCr, H13 are carried
out in the process with D/d Ratio are used. The process is carried out with three different
tool materials and two different base material mainly aluminium reinforced Zirconium
diboride (Al-ZrB2) and Silicon Carbide (Al-SiC). The Micrograph of each four zones for
the tool material and base material is shown. This paper mainly focusing on which the
tool material shows a maximum tensile and hardness value for two base materials |
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A FEW DEMOGRAPHIC FACTORS AFFECTING THE DECLINE OF TOTAL FERTILITY RATE: AN EMPIRICAL EVIDENCE |
Author : D.Srinivasa Kumar, K.V.S.Prasad and A.Vinod Kumar |
Abstract | Full Text |
Abstract :This paper investigates the a few demographic factors affecting the decline of Total
Fertility Rate. It is based on survey conducted in Kovvada region, Srikakulam district,
Andhra Pradesh. According to GIS information the study area divided into three zones
with 5km, 15km and 30km radius distance from the Nuclear Plant situated in Kovvada
labeled as core zone, Buffer Zone - I and Buffer Zone - II covering 153 villages. Data
were collected from 11297 household through pre designed questionnaire in these zones
and entered CAPI using DESOFT software and analyze. Children ever born and children
surviving data used to estimate age specific rates. Association between education level
and fertility rates have been established by applying chi square. Results revealed that 61
percent women were illiterate and TFR 2.7. The TFR range 2.7 to 3.4 in all three zones
high and there is significant association between fertility and a few demographic factors
like occupation and education level of women. It may be inferred that literacy rate of
female and women age groups are the most imperative components influencing TFR.
Which proved that the existence of some kind of dependency between level of education
and total fertility rate. |
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DESIGN COMPARATIVE OF PVC FISHING BOAT WITH VARIATION OF SHIP HULLFORM AND FISHING GEAR TYPE |
Author : Deddy Chrismianto, Parlindungan Manik, Good Rindo and Ahmad Firdhaus |
Abstract | Full Text |
Abstract :This study have been done to investigate the characteristics of the fishing boat
using PVC pipe material with variations of hullform that have the smallest total ship
resistance, and good ship stability that meets International Maritime Organisation
(IMO) standards. The method used in this study is to creating 3D modeling with
variations of hullform and the fishing gear type. The smallest total ship resistance and
good ship stability values are obtained on the flat model no.2 with displacement
volume of the boat 22.48 m3. The resistance of the boat is 10.1 kN with ship powering
is 46.55 kW at 9 knots. The stability of the ship in flat model no.2 with different types
of fishing gear meets the IMO standard, but the smallest GZ value is obtained when
using longline fishing gear.
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ANALYSIS OF MANUFACTURING PROCESS AND PRODUCTION LINE FOR QUALITY IN PAPER INDUSTRY |
Author : Nithesh Naik, Dasharathraj K Shetty, Balakrishna Maddodi, Namesh Malarout and Jyothsna Samant |
Abstract | Full Text |
Abstract :The governance, risk and compliance services (GRCS) of an organization helps to
govern the strategies, manage the risks, mitigate the problems identified, and to
comply with the rules, regulations, policies and procedures of the organization. The
study deals with the investigation of the process of a paper mill. Internal financial
check audits are performed, using a risk matrix to consolidate process inefficiencies
and gaps. Interviews conducted identify the employee related problems. The standard
operating procedure (SOP) are compared to the benchmarks followed in the industry
and recommendations are provided to improve the processes. The audits conducted
identified non-compliance in the areas like manufacturing process, regular medical
tests of employees, delay in the payment of provident fund, workers who have worked
without taking required amount of rest and excess disposal of waste. The GRCS
framework designed through the current investigations helps to comply with all rules,
regulations and policies in paper manufacturing industry. The non-compliance could be avoided in advance before the statutory bodies by training the workers regarding
the various policies and procedures of the organization. |
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CHARACTERISTICS STUDY OF TWO-STAGE CASCADE REFRIGERATION SYSTEM DESIGN FOR HOUSEHOLD AIR BLAST FREEZING |
Author : Darwin R.B Syaka, I Wayan Sugita and Muhammad Bijaksana |
Abstract | Full Text |
Abstract :The major problem of archipelago communities is the storage of seafood that depends
on a particular season. In order for seafood to be preserved for long periods of time then,
it should be frozen using air blast freezing. However, the existing air blast freezing is still
on an industrial scale. Therefore, the aim of this study is simulation of the two-stage
cascade refrigeration system model, validation and evaluation of the model with
experiment data. This research was preceded by a design for the two stage cascade
refrigeration system R22/R32 followed by experiment to obtain operational parameters
which will then be validated and evaluated of the components of this cascade refrigeration
system. The results of this research are design, operational and analysis methods to
determine parameters and specifications of air blast freezing components including:
pressure of system, cooling temperature, compressor power required, cooling load and
evaluation required for its performance to be better |
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A NEW PROPOSAL ARCHITECTURE FOR REFERENCE PLE: REFPLE |
Author : S Bagriyanik, D Karahoca and A Karahoca |
Abstract | Full Text |
Abstract :The purpose of this paper is to design reference architecture for intelligent personal
learning environments (PLE). This research effort is a result of a multi-stage approach.
First, semi-structured interviews have been conducted with software development
practitioners working in a large technology and communications services provider
company. Interview content has been evaluated using thematic analysis. Second,
reference architecture for intelligent personal learning environments has been designed
and validated using the Software Architecture Analysis Method (SAAM). During SAAM
evaluation, the output of the first phase and previous Personal Learning Environment
literature reviews has been used. As a result, we demonstrated a novel architecture for
personal learning environments. Proposed personal learning architecture has met the
requirements of industry demands and previous literature.
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ANALYSIS OF SOFTWARE PRODUCTS FOR PROCESSING THE RESULTS OF SPECTROSCOPY |
Author : S.Y. Krotova, A.E.Ilin and A.V.Chirgin |
Abstract | Full Text |
Abstract :Currently, structurometric methods of analysis play an important role in information
support of monitoring in nature management and geological exploration. Any kind of
spectroscopy implies the availability of software for obtaining and processing the results
of research. This article is of an overview and analytical nature. Software products
are considered that are used to process the results of spectroscopy or are
potentially suitable for analyzing the results of the relevant studies. The article
presents an overview of software applications for processing the results of spectroscopic
studies developed over the past few years. The main directions of software modernization
for this type of research have been described. A comparative analysis of the most widely
used software of domestic and foreign developers has been carried out. The main
properties, advantages and disadvantages of software applications have been presented.
Based on the comparative analysis, a conclusion has been made about the possibility of
applying particular software functional for spectroscopic studies in the structurometric
analysis in geology. |
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REVIEW ON PERFORMANCE OF EXISTING COOLING TOWER FAN BLADE IN THE PRODUCTION INDUSTRY |
Author : Nduka Ekene Udoye, Ojo Sunday Isaac Fayomi and Anthony Omieraokholen Inegbenebor |
Abstract | Full Text |
Abstract :Cooling towers are the major industrial part for heat rejection in petrochemical
industry, oil refineries, chemical plants, thermal power plants and HVAC systems for
cooling structures. The fan is a mechanically forced-draft used to extract the heat
accumulated in the flowing cooling water components and the fan blade is a very
important part of the towers. Failure of fan blade leads to low productivity, high cost of
replacement and maintenance of cooling tower fan blade in service. This paper presents
a review on failure mode and material availability of cooling tower fan blade |
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TIDAL HYDRODYNAMIC WAVE IMPACT ON POLLUTANT RESIDENCE TIME WITHIN NADOR LAGOON |
Author : M. Jeyar and E. Chaabelasri |
Abstract | Full Text |
Abstract :In this work the impact of the tidal wave on pollutant residence time within Nador
lagoon has been computed using an Eulerian approach and a 2D hydrodynamical model.
The model is based on the finite volume method; it solves the shallow water equations on
spatial domain that represents the Nador lagoon. The residence time has been defined
through the remnant function of a passive tracer released inside the lagoon. The renewal
capacity of the Nador Lagoon has been investigated when forced by the astronomic tide.
The influence of tidal wave on residence time has been defined by the return flow, and
computed for two scenarios during winter and spring periods |
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A SIMPLE UNSTRUCTURED FINITE VOLUME SCHEME FOR SOLVING SHALLOW WATER EQUATIONS WITH WET/DRY INTERFACE |
Author : Elmiloud Chaabelasri, Mohamed Jeyar, Najim Salhi and Imad Elmahi |
Abstract | Full Text |
Abstract :A simple unstructured finite volume scheme is used to solve the two-dimensional
shallow water equations (SWEs) for simulation of dam break flows over irregular beds
involving wet and dry interfaces. In space, we construct a balancing higher order upwind
scheme on unstructured triangular mesh to approximate the convective and source term
due to bed slop. We improve the scheme to treat the cases of flow over dry beds. For
temporal derivative approximation, a second-order explicit Runge-Kutta is used. We
apply the scheme for several theoretical two-dimensional numerical experiments
involving dam-break flows with moving wet-dry fronts over irregular bed topography.
Promising results are obtained |
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INVESTIGATION OF WEAR BEHAVIOUR OF SILICON CARBIDE TOOL INSERTS AND TITANIUM NITRIDE COATED TOOL INSERTS IN MACHINING OF EN8 STEEL |
Author : S.Ganeshkumar, Dr.V.Thirunavukkarasu, Dr.R.Sureshkumar, Dr.S.Venkatesh and Dr.T.Ramakrishnan |
Abstract | Full Text |
Abstract :The machining process is essential in the manufacturing industry. Among the all
machining process, turning is the broadest techniques used to remove the metal. In
this machining process, metal removal rate was influenced by the sharpness of the
cutting tools. Due to the friction between the workpiece and the tool insert, tool wear
occurs. After the wear takes place, the efficiency of the machine will be reduced and
metal removal time will be increased. Hence, it is essential to investigate the
behaviour of the tool wear under the machining. This investigation is to analyse the
wear characteristics of the tool inserts. The machining of the EN8 was examined in
this research using silicon carbide tool inserts and Titanium nitride coated tool
inserts. This research was investigated the wear behaviour of the silicon carbide tool
insert, and titanium nitride tool insert in machining of EN8 steel using a horizontal
machining centre. The wear of the inserts was measured using toolmakers
microscope. The flank wear and crater wear was considered in the tool wear
measurement |
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FACTORS CAUSING YOUTH UNEMPLOYMENT PROBLEM IN NIGERIA: A REVIEW |
Author : Ongbali S. O, Afolalu S. A and Udo M. O |
Abstract | Full Text |
Abstract :There are myriads of variables responsible for youth unemployment problem
particularly in Nigeria and other developing countries. Consequently, it is necessary to
obtain comprehensive data on the variables to blame for youth unemployment to chart
direction for further research and provide guide for stakeholders on the pathway to
solving the problem. Factors accountable for youth unemployment problem were
abstracted from literature and presented. Frequency distribution of the factors causing
youth unemployment based on researches unproven opinion showed that, fast population
growth, rural to urban migration and lack of employable skills and experience among the
youth are predominantly factors to blame among other variables. Thus, the information
provided suggest direction from where to start addressing youth unemployment problem
by stakeholders and policy makers while further research is required to pinpoint the
primary causes of the problem with proven evidence. |
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ESTIMATION OF LEAKAGE FACTOR FOR ACTIVE MAGNETIC THRUST BEARING |
Author : V. V. Kondaiah, Jagu S. Rao and V. V. Subba Rao |
Abstract | Full Text |
Abstract :Magnetic thrust bearing is a device which is used to support the object by
controlling the magnetic field. Permanent magnets or electromagnets or both are used
to produce magnetic field. The type of magnetic bearing discussed in this paper is a
single acting active magnetic thrust bearing. A prototype magnetic thrust bearing is
made to study the thrust capability. The measured values of force are compared with
theoretical values. A leakage factor is estimated. The experiments are done at different
air gaps from 1mm to 5 mm in steps of 0.5 mm. The variation of leakage factor is
plotted at different air gaps. An attempt is made to find the optimum air gap between
the stator and rotor of AMTB. |
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TURBULENCE FLOW SIMULATION OF MOLTEN METALS IN RUNNERS FOR DEFECT CONTROL IN CASTING OF A SPUR GEAR BLANK |
Author : Enesi Y. Salawu, Oluseyi O. Ajayi, A.O Inegbenebor |
Abstract | Full Text |
Abstract :The study investigates the effects of turbulence flow of molten metal on the walls of
the runner and the mould cavity during pouring via simulation approach. Effects of
temperature, solidification time, shrinkage porosity, thermal modulus, hot spot
formation and interfacial heat transfer coefficient were simulated under turbulent flow
condition. Turbulence kinetics and flow properties which include velocity and
viscosity were equally simulated. The result of temperature simulation showed an
ideal variation of temperature distribution during flow and in the cavity. Molten metal
at liquid state was observed to vary from 654.7-636.0 oC and became solid at 473.3-
492.0 oC for a total simulation time of 169.5838 seconds. Consequently, at higher
pouring temperature, diffusion of heat into the walls of the mould will occur due to the
momentum of flow thereby leading to erosion of the mould content. In addition to this,
velocity and viscosity of the molten metal was found to have effect on the turbulent
kinetics. Thus, this simulation technique will help the foundry industry in improving
the gating system design by studying the defects associated with turbulence flow and
incorporating filters to remove the inclusions in the gating system |
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INVESTIGATION OF DRILLERS’ EXPOSURE TO NATURAL RADIOACTIVITY AND ITS RADIOLOGICAL RISKS IN LOW LATITUDE REGION USING NEUTRON ACTIVATION ANALYSIS |
Author : Maxwell OMEJE, Theophilus Aanuoluwa ADAGUNODO, Sayo Akinloye AKINWUMI, Olusegun Oladotun ADEWOYIN, Emmanuel Sunday JOEL, Wagiran HUSIN and Suhaimi Hamzah MOHD |
Abstract | Full Text |
Abstract :Radiation originates from anthropogenic, primordial, and cosmogenic sources.
The impact of radiation through anthropogenic and cosmogenic sources is negligible
to the environment while the primordial radioactivity is widely distributed in the earth
and its environs. This radioactive material and its Byproducts are found mainly in
diverse geological formations around us. Inadequate access to public water supply in
Abuja has forced more than 80 percent of the population of about 5 million to drill
private boreholes. Nigerian drillers are unaware of high concentrations of
radioactivity present in granitic rocks which vary with depth. The radioactivity of
226Ra as well as 232Th decay chains for the lithological rock samples could be at
equilibrium considering the age as well as the isotopic mass proportion which is
assumed to be equal to its natural isotope. Neutron Activation Analysis (NAA) is
adopted for this study with the aim of minimizing sample size as well as less counting
rate in order to estimate the radioactivity concentration in rock samples. Two
boreholes are drilled in Abuja in order to randomly collect the rock samples from
three different layers of each site. All the samples were duplicated for each
radionuclide examination, resulting to twelve samples in all. The results showed that
the activity concentrations of 226Ra, 232Th and 40K in the two sites were in the order
232Th > 226Ra > 40K. 226Ra and 232Th possess activity concentration greater than the world’s average while 40K activity is less than the world’s average. The
radiological risks estimated showed that more than half of the parameters used nearly
exhibited greater values than the global average values. It is, therefore, concluded
that Abuja is underlain by rocks of low potassic value. If the drillers do not take
caution about the geologic formation of the subsurface and apply necessary
precautions before the commencement of any borehole drilling, over – exposure to
these -radiation may pose unquantifiable health risks to them |
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ANDROID-BASED ESTIMATING APP FOR BUILDERS ON CONSTRUCTION SITES |
Author : Afolabi Adedeji, Abimbola Mayowa and Ojelabi Rapheal |
Abstract | Full Text |
Abstract :The discrepancies between the estimated quantities of building materials and the
final quantities used during the construction process requires the need to use more
accurate techniques in estimating building materials. The study aimed at developing
an android-based estimating app for builders on construction sites with the view of
increasing accuracy of estimated building materials. The study was carried out in two
stages, whereby one part required a survey to ascertain existing practices while the
other helped to develop the android application. A survey research design was utilized
on Builders in Lagos state in the south-west of Nigeria. Mean scores and correlation
matrix was used for the descriptive and inferential statistics. For the design of the
android estimation application for Builders, an android studio and Java programming
language was used in developing the app. The developed android app was run via the
android emulator. The descriptive data revealed that most of the techniques presently
used by builders in estimating building materials were traditional methods which were
drawn from either manual-based or use of experiential knowledge. Using these
techniques were hinged on several factors as identified in the study. An android-based
estimating app was developed for Builders with the aim of estimating for concrete
works, sandcrete blocks, ceramic tiles and mortar during the construction process.
The study recommended the use of information and communication technologies
(ICTs) in obtaining accurate building quantities needed during the construction
process |
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ITO-RENTABILITY FUNCTION FOR STOCK OPTION DRIFT AND VOLATILITY USING DJI INDICES |
Author : S. O. Edeki, G. O. Akinlabi, F. O. Egara and A. M. Okeke |
Abstract | Full Text |
Abstract :In this paper, the drift and volatility parameters of a stock option are modeled via ItoRentability function based on Dow Jones Industrial (DJI) Average indices. The stock
exchange data of DJI span between November 17, 2015 to April 6, 2018 involving daily
data with 600 sample size. The stock price basic moments viz: expected value and
volatility are derived in the sense of Ito stochastic dynamics. It is noted that the proposed
models will be of immense importance in financial and production engineering, likewise
other areas of applied, and management sciences. |
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ADAPTIVE REGRESSION MODEL FOR HIGHLY SKEWED COUNT DATA |
Author : Remi J. Dare, Olumide S. Adesina, Pelumi E. Oguntunde and Olasunmbo O. Agboola |
Abstract | Full Text |
Abstract :A big task often faced by practitioners is in deciding the appropriate model to adopt
in fitting count datasets. This paper is aimed at investigating a suitable model for fitting
highly skewed count datasets. Among other models, COM-Poisson regression model was
proposed in this paper for fitting count data due to its varying normalizing constant. Some
statistical models were investigated along with the proposed model; these include
Poisson, Negative Binomial, Zero-Inflated, Zero-inflated Poisson and Quasi- Poisson
models. A real life dataset relating to visits to Doctor within a given period was equally
used to test the behavior of the underlying models. From the findings, it is recommended
that COM-Poisson regression model should be adopted in fitting highly skewed count
datasets irrespective of the type of dispersion.
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DESIGN OF A DROWNING RESCUE ALERT SYSTEM |
Author : Samuel Ndueso John, Ukpabio Imelda Godswill, Omoruyi Osemwegie, Godfrey Onyiagha, Etinosa Noma-Osaghae, and Kennedy Okokpujie |
Abstract | Full Text |
Abstract :Dating back in time, drowning has been a significant ground for death worldwide; it
accounts for the third cause of unplanned death globally, with about 1.2 million cases
yearly. Characteristically it affects swimmers, accident victims, children and recreational
seeking individuals. Although there have been various provisions put in place from
drowning in some countries, it still accounts for the primary cause of unplanned death.
Eradication rather than cure has been able to minimize the number of individuals who
drown generally, except in developing nations, who lack adequate educational facilities
and enforcement of safety measures on the dangers of drowning, thereby making the
burden of drowning to escalate. The proposed drowning rescue system aims to curb
deaths from drowning by observing the rise and fall of the heart rate and blood pressure
of a swimmer or non-swimmer in water and if endangered, sends signals from the
wearable device attached to the wrist of the victim who maybe undergoing a neardrowning experience to the receiver or rescuer who could be a lifeguard, parent or
neighbour, in order to enable the rescuer render immediate help |
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CURRENT RESEARCH TRENDS ON SUSTAINABLE CONSTRUCTION PROJECT DELIVERY |
Author : Emokpae Erebor, Eziyi O.Ibem and Bukola A. Adewale |
Abstract | Full Text |
Abstract :Research trends are tending towards sustainability in construction and project
delivery is drawing the interest and attention of great researchers. This review work in
trying to get better understanding of the research area and presents current research
trends in the area of research in sustainability and construction and project delivery from
2003-2017. This review is done through thorough analysis of 50 published research
papers by different authors retrieved from Google Scholar, and Science Direct online
databases in the field of sustainable construction project delivery. All the analysis
conducted covers the researchable areas, the countries that have been frontiers to the
research, the research approaches, the tools for data collection and analysis and the
contributions of authors relating to identified areas and identification of main authors
contribution and lastly the prediction of possible future researchable areas relating to the
field of sustainability and construction in delivery of projects. The results of this review
identified seven researchable areas relating to sustainability and construction in project
delivery. Further results revealed that literature review, interviews, semi structured
interviews, industry surveys and content analysis were the main approaches adopted for
carrying out research work while research data were collected mainly through
questionnaires, interviews, and site observations. Discourse analysis, factor analysis and
multiple regression analysis were the major methods used in analysing the data collected
although the use of software is also trending during research on sustainable construction
project delivery. Jiang Zuo, Bo Xiang, Cheng Sien Goh and Steve Rowlinson are
researchers who were identified as part of those who have contributed enormously, with
some other following suite and breaking grounds in research work in the field of
sustainable construction project delivery. However there are still areas like the climate
and its effects on sustainable construction, BIM in sustainability and Lean applicationsin construction project delivery, management of waste in construction policy development
for sustainable construction project delivery, user awareness and perception of
sustainable construction project delivery and training for construction professionals on
sustainable construction were identified as researchable areas that can draw attention of new
researchers for future research as it relates to sustainability in project delivery |
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NOISE REDUCTION OF TWO WHEELER BY REDESIGNING SPIRAL RESONATOR & PERFORATED TUBE |
Author : Raghuram Pradhan, Sukumar Puhan and M. Sreenivasan |
Abstract | Full Text |
Abstract :Background: In this study, the Component of normal exhaust system such as
muffler or silencer shell, perforated tube, spiral resonator design have been carried
out by SOLIDWORKS and a Finite Element Approach have presented for modeling
and analysis of muffler noise developed at different locations as well as temperature
distribution over silencer. The main objective of this study was to simulate and
investigate the performance of a general muffler by simulation and experimental
technique.
Methods: In order to minimize two-wheeler noise, testing were carried out in a
Bajaj pulsar two wheeler by redesigning a spiral resonator andperforator tube which
is capable of attenuating noise level by about 7 dBA (Decibels).
Results: The results obtained from simulation that as the distance increases from
inlet of silencer the sound pressure level decreases gradually.
Conclusions: Obtained results shows a significance decrease of sound pressure
level about 7 dBA from existing silencer to new designed silencer
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EXTRACTION, CHARACTERIZATION AND KINETICS OF DEMINERALIZATION OF CHITIN PRODUCED FROM SNAIL SHELLS OF DIFFERENT PARTICLE SIZES USING 1.2 M HCL |
Author : Daniel T. Oyekunle and James A. Omoleye |
Abstract | Full Text |
Abstract :In this study, kinetics of demineralization of chitin extraction from snail shells was
investigated. Chitin was extracted from snail shells by demineralizing the
deproteinized shells in 1.2 M HCl solution. Prior to demineralization, the raw snail
shells were deproteinized using 1 M NaOH solution to remove proteins and organic
matter present in the shells. The product was dried before the demineralization
process was carried out. The results showed that based on the R2 values obtained for
each of the shrinking core models considered which include; fluid film diffusion
(FFD), ash layer diffusion (ALD), and chemical reaction control (CRC), it was noted
that the CRC model was prevalent for all the various range of particle sizes analyzed
(6.3 – 4.75 mm, 4.75 – 2 mm, 2 – 1 mm, and 600 – 300 µm). The surface morphologies
and the Fourier Transform Infra-Red (FTIR) bands of the extracted chitin were
similar to previous studies. |
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NEXUS BETWEEN USERS’ PERCEIVED RISK, PERCEIVED LEGISLATION AND E-COMMERCE ACCEPTANCE: IMPLICATIONS FOR E-COMMERCE ADOPTION IN SOUTHWEST NIGERIA |
Author : Taiwo Akeem A., Kuye, Owolabi L., Awe, Kayode O., Ogunnaike, Olaleke O., Salau, Odunayo P., Lawal, Fatai A |
Abstract | Full Text |
Abstract :This paper investigates the impact of perceived risk and perceived legislation on ecommerce acceptance. Questionnaire was used to collect data from 666 come-toclaim customers of top 4 e-Commerce organizations. Hypotheses were tested using
Hierarchical Regression Analysis. The results revealed that perceived risk and
legislation have significant effects on e-Commerce acceptance. The study expanded
the application of theory discussed in this study which allow for contribution to the
theorizing of e-commerce adoption by substituting behavioural variables with internet
security variables to the already established UTAUT model. The paper recommends
that government should provide a regulatory framework to drive the e-commerce
sector |
|
WATER CUT COMPARISON FOR A REALLY SIMILAR GRIDDING SYSTEM (LINE DRIVE PATTERN) |
Author : Jihad Husain Al-Joumaa, Mohammed S. Al-Jawad |
Abstract | Full Text |
Abstract :Reservoir simulation is a very wide science. The main advantage of making a
simulation model is to predict the behavior of the case reservoir and treat all the
problems that may occur before occurring in the real reservoir.
In this paper we took a section model with certain area and depth. Remodeled it
into three different layers vertically and keeping the areal gridding the same to
compare the water cut and behavior.
The comparison point used was the waterflooding pattern. The pattern used was
line drive using one producing well to one injection well. The injection wells were
placed on the same line of the production well. The water saturation behavior was
also observed.
The resulted behavior was very similar which indicates that the models with the
same properties and same areal gridding will endure the same water behavior no
matter how many vertical gridding it has within same depth. |
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PROLONG THE NETWORK LIFESPAN OF WIRELESS SENSOR NETWORK BY USING HPSM |
Author : Mrs.V.Porkodi, Dr.D.Yuvaraj, Dr.Amin Salih Mohammed, V.Manikandanand Dr.M.Sivaram |
Abstract | Full Text |
Abstract :It conforms with enlarging the network lifetime of WSN with the aid of the help over
Fusion PEGASIS end to end including Sink Mobility (HPSM). To prolong the community
whatness about wireless sensor is affected via a multi-head link, multi-link concept,
afterwards the lie depressed mobility by way of HPSM. To obtain environment friendly
electrical energy bad regarding wi-fi sensors, we propose Hybrid PEGASIS using Sink
Mobility (HPSM). In this approach, the cell fail has trajectory direction which is a specific
predefined path. When be ruined observed its trajectory direction with total concerning
period it stays or series about facts is referred to as like sojourn time. Our proposed
algorithm follows the trajectory route afterwards yet guarantees regarding fulfilled
collection of data. We boost an algorithm because the trajectory about mobile sink. The
evaluation over HPSM collectively including SEP suggests namely stability, then
community rapid animal increased |
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INFLUENCE OF EXCAVATION TO THE TEMPERATURE CONDITION OF PERMAFROST |
Author : E. V. Markov, S. A. Pulnikov, Yu. S. Sysoev, N.V.Kazakova |
Abstract | Full Text |
Abstract :Permafrost is a very complex ground for foundation. Predicting the stability and
reliability of constructions in a rapidly changing climate is impossible without
predicting the temperature condition of permafrost soil. Stabilization of permafrost
soils on local object is provided with a considerable margin, due to the use of
ventilated cellar, thermopiles and monitoring systems. On linear objects such as
pipelines, laying above the ground or the use of thermopiles is a very expensive
engineering protection method. Therefore, the pipeline is laid underground with the
use of ring insulation. Thawing of permafrost soils leads to significant uneven vertical
deformations of the pipeline. Therefore, the accuracy of predicting the temperature of
the permafrost is a priority problem.
Underground pipeline laying is accompanied by excavation and backfilling of the
soil. In this case, the structure of the soil is destroyed, the density is decreased and the
water content is increased due to mixing with snow and penetrating of precipitation.
The article presents the results of a numerical experiment of influence of
excavation to the temperature condition of soil. Soil loosening and filling the empty
pore by water significantly increases the average soil temperature of plastic frozen
soil (the soil with annual average temperature in the interval of the most intense phase
transformations). Thus, the stability of constructions is determined not only by their
impact on the permafrost, but also by changing the structure of the soil during
excavation |
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PREPARATION OF NEW ALUMINUM MATRIX COMPOSITE REINFORCED WITH HYBRID NANO REINFORCEMENTS FE2O3 AND AL2O3 VIA (P/M) ROUTE |
Author : H. J. M. Alalkawi, Ghada Adel Aziz and Hussain A. Aljawad |
Abstract | Full Text |
Abstract :Nanocomposites are materials fabricated from two or more materials with
different mechanical and electrical properties. Combining these materials produce a
new designed material with new and better properties differ from the individual
components .In recent years nanocomposites have been developed and employed
almost in all industries . The current study deals with fabricating a hybrid composite (
when there are a minimum of three materials , the composite is called as hybrid
composite ) . Pure aluminum 99.6 % as the base matrix and Iron oxide Fe2O3 (alpha)
and aluminum oxide Al2O3 (alpha alumina) . Fe2O3 weight percentage (wt%) is
varied ( 1.5 , 2.5 and 5 % by weight ) and the wt% of Al2O3 is held constant (2 wt%) .
The new designed nanocomposite was produced using Powder Metallurgy (P/M)
method . This method has been widely used for fabricating aluminum matrix
composites (AMCs) due to it is low costs and gives high accuracy as well as the ease
of using . The matrix used was aluminum powder with an average particle size of
(60µm) with 99.6% purity and Fe2O3 ( 99% purity and 30 nm particle size ) and
Al2O3 with (99.5% purity and 14-20 nm particle size ) . The experimental results
revealed that the microstructure images of composites showed uniformly distributed of
Fe2O3 and Al2O3 in aluminum matrix . The maximum compressive strength (CS) and
hardness (HV) are 152 MPa and 47.2 respectively in composite containing (1.5
Fe2O3 + 2 Al2O3 ) wt% . The improvement percentage was recorded to be 30% and
18.5% for CS and HV respectively . The electrical properties of the composites were
enhanced due to addition the nanohybrid Fe2O3 + Al2O3 nanomaterials. The
maximum conductivity was observed in composite including (1.5% Fe2O3 + 2%
Al2O3 ) which is equal to 69521 ( ?O.m )?^(-1) while the zero nano exhibited 1170 (
?O.m )?^(-1) . Also the conductivity for all composites are higher than that of matrix.
The conductivity increased with increasing the frequency
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GENETIC ALGORITHM BASED STEGANOGRAPHY USING ADAPTIVE RECTANGULAR EMBEDDING AREA |
Author : AHMED KAWTHER HUSSEIN |
Abstract | Full Text |
Abstract :Image steganography is to hide an image inside an image for security purpose.
Different approaches were applied for image steganography some of them are based
on spatial domain and others are based on frequency domain. Spatial domain
steganography approaches are simpler because they do not involve applying any
transformation to the image. In this article, genetic algorithm is presented for
searching for the best locations to hide the image bits inside the image. The image can
be embedded in an adaptive block inside the host image. Furthermore, the secret bits
can be reserved and inverted before embedding in order to optimize the hiding
performance measures. Results show superiority over the baseline approach with
respect to all evaluation measures |
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FABRICATION OF BIO-POLYMER MATRIX COMPOSITE (PMCS) USED FOR BIOMEDICAL APPLICATION |
Author : Mohamed Khazal Hussien and Raid K Salim |
Abstract | Full Text |
Abstract :In this researcha biomaterial additives were added to a polymeric materials to
impr0ve the mechanical properties of the resultant composite,which can be used in
bi0medical applications:as examplereplace or supplement functions of living tissues
of human body. The present work is c0ncerned with study the mechanical properties
(Compressive strength, Tensile strength, Impact strength, Wear resistance and
hardness) for the resultant composite material.
Epoxy was reinforced with < 75 µm of caw bone particulates. Three percentage of
particles were used (5, 10 and 15) %, and the most effective addition was (10-15 wt.
%). X-ray results showed that 71 % caw bone is calcium phosphate hydroxide
(apatite). Also results showed that compressive and tensile strength of the resultant
composite was increased by 18% and 24% respectively, as compared to as received
epoxy. Hardness and impact strength of the fabricated composite also increased by
15% and 41% compared to the unreinforced epoxy.
Wear resistance of the composite was improved pronouncedly through the
resultant composite additions of bone particles, where wear rate decreased by 82%.
Finally, the impact strength of the epoxy reinforced caw bone was increased by 41%
compared to that unreinforced epoxy |
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THEORETICAL AND FINITE ELEMENT INVESTIGATION FOR NOSING BRASS TUBES AT ROOM TEMPERATURES |
Author : Rawaa Hamid Mohammed Al-Kalali, Dr. Omer Muwafaq Mohmmed Ali and Ethar Mohamed Mahdi Mubarak |
Abstract | Full Text |
Abstract :In this paper the equation is derived theoretically connecting between the stress
due to forming and nosing ratio. A theoretical study was performed on the conical
nosing of the brass tube material at room temperature. The relationship between
forming stress, nosing ratio of tube is concluded. ANSYS is used to simulated 5° and
10° semi-die angles in a conical die to observed the stress and strain distributions in
the tube. The process has been carried out using brass tube with thickness 2mm under
states of cold process of nosing samples with a radius of (20)mm and length (120)mm.
A good match is obtained between the theoretical and the ANSYS results. It is noticed
that the well die is conical die having 10° semi angle of die.
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STUDY THE MICROSTRUCTURE OF WELDING JOINT OF DIS-SIMILAR METALS |
Author : Dr. Abdul Wahab Hassan Khuder and Essam Jabar Ebrahim |
Abstract | Full Text |
Abstract :This article is about studying the microstructure of welding joint of dissimilar metals,
stainless steel to low carbon steel that is thickness (4mm) for both by using the metal
active gas (MAG) spot welding process. The welding wire (E80S-G) is used and have
(1.2mm) diameter depend of (AWS), and Co2 gas was used as shielded gas with (7L/min)
flow rate in all times used in this study.
In this work, we select many samples from the welding joints from welding region and
heat effective zone, these samples will change in there welding from the welding time,
current and the wire feed. A different region that represents regions of joint interface
between the two metals, and heat effected zone we noted that. The ratio of pearlite in low
carbon steel more than in base metal and the ratio of ferrite is less than in parent metals.
Furthermore, the microstructure of stainless steel has no change as compact with low
carbon steel because most of heat concentrated in the low carbon steel.
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EXPERIMENTAL INVESTIGATION OF EXHAUST EMISSIONS FROM SPARKIGNITION ENGINE USING THE DIFFERENT TYPES OF FUELS |
Author : Mohammed Kadhim Allawi, Mahmood Hasan Oudah, Mohanad Kadhim Mejbel |
Abstract | Full Text |
Abstract :This study reports exhaust emission evaluation for internal combustion engines
laboratory of four-stroke, single–cylinder, water cooled system, in constant speed
(1000–3000 rpm), SI engine. Exhaust gas emissions, carbon monoxide CO, unburned
hydrocarbon HC and carbon dioxide CO2 emissions levels were estimated at many
speed operation of the engine. The engine was operated with different types of fuel. It
was observed that when the engine is fuelled by alcohol fuel, the volumetric ratio of
the exhaust pollutants is minimum compared to the rest of the varieties of fuel and
even when the catalyst converter is used |
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BUCKLING AND INITIALLY STRESSED VIBRATION ANALYSIS OF LAMINATED COMPOSITE SHALLOW SHELL USING NEW DISPLACEMENT FUNCTION |
Author : Ibtehal Abbas Sadiq |
Abstract | Full Text |
Abstract :The new higher order function is reused [10] to study critical buckling load and
natural frequency under initial stress of cross ply laminated composite thin and thick
shell. The equations of motion are derived depending on ‘‘m’’ parameter, whose value
is obtained to give accurate results when compared with 3D solution using Hamilton’s
principle. These equations are solved using Navier-type for simply supported
boundary conditions. The effect of various design parameters such as (thickness,
orthotropy, curvature) ratio and number of layer for symmetrically and unsymmetrically simply supported laminated spherical shell have been examined and
compared with other published results. It was observed that this theory gives results
close to three dimension elasticity solutions and those obtained by existing shear
deformation shell theories for buckling and vibration analysis |
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BELOW KNEE PROSTHESIS MODAL ANALYSIS |
Author : Yassr. Y. Kahtan |
Abstract | Full Text |
Abstract :The modal analysis was carried out using finite element software (ANSYS
Workbench 15) for below knee prosthesis (BKP). The prosthesis was modeled using
specialized CAD software (Solidworks). The natural frequencies were calculated using
the Block Lanczos method. The natural frequencies and mode shape were calculated
and extracted for the tenth mode using modal analysis.
The numerical results were verified experimentally for the first natural frequency.
The first natural frequency was found to be (69.446Hz) and the experimental natural
frequency was found to be (58.32Hz) that give a variation between the numerical value
of the natural frequency to be (19.07%) |
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