STUDY OF THE EFFECT OF NANO SILICA ON THE SELF HEALING ABILITY OF HIGH STRENGTH CONCRETE WITH CRYSTALLINE ADMIXTURE |
Author : S. Sirajuddin, Dr. T. Chandra Sekhara Reddy, T. Bhuvana Vijaya and K Ramamohan Reddy |
Abstract | Full Text |
Abstract :The aim of this study is analyzing the self-healing capability of high strength
concrete (M70) with nano silica and crystalline admixture in three types of
environmental exposures i.e. water immersion, wet/dry cycles and water contact. The
percentage replacements of cement with nano silica were 1%, 2%, 3% with addition of
1.1% crystalline admixture. The specimens were pre-cracked at 28 days in the range of
0.10-0.40mm and the time set for healing was 42 days. The result shows that all the
mixes have considerable amount of closing ability and strength regaining capacity for
all exposure conditions. The concrete with 2% nano silica and 1.1% crystalline
admixture (CA) has complete crack closing ability and strength regaining capacity for
water immersion and wet/dry cycle conditions |
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INNOVATIVE SAFE PROTECTION TECHNOLOGY AND ITS EFFICIENCY IN WATER CONSTRUCTION |
Author : Kuznetsov Andrey Vyacheslavovich, Estamirov Magomed-bashir Abu-Muslimovich, Sapraliev Akhmed Magometovich, Toldiev Adam Amirkhanovich, Pugiev Ramazan Khizirovich |
Abstract | Full Text |
Abstract :The article presents the results of the field studies of the coast-protection
structures with the sloping face used in the water-storage reservoirs in Belarus.
The most common protection of the coast and slopes, monolithic reinforced
concrete or precast slabs, are considered.
It was experimentally revealed, that as a result of opening the seams of the plates,
the sand-gravel preparation is destroyed and washed out, the sinuses and niches in the
body of the supporting structure, which leads to a significant processing of the soil
slope, are formed. Field studies, as well as laboratory experiments, made it possible to
establish the possibility of reinforcing the slope of the self-bridge of gravel particles
by artificial means by dumping a soil with increased heterogeneity that has large
fractional inclusions.
The economic efficiency of the new type of fastening is shown |
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HUMAN FACE DETECTION WITH SKIN COLOR PROPERTIES |
Author : Samira Abdul-Kader Hussain and Dr. Maha A. Al-Bayati |
Abstract | Full Text |
Abstract :It is well known that color of skin contributes heavily, as a vital feature, to
detection , recognition, as well as tracking of face and hand in video applications for
human. This research presents the attempts to use skin color in the process of face
detection in colored image. Skin detection is considered as priori. It mainly relies on
H channel in HSV color models to characterize the skin colors range. The work
presented prove applicability for different input human color images of different type
and size. |
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SHORELINE CHANGES USING DIGITIZING OF LANDSAT IMAGES AT MIAMI TO MONTAZA BEACH, ALEXANDRIA, EGYPT |
Author : Elbagory, I. A, Heikal, E. M and Koraim, A. S |
Abstract | Full Text |
Abstract :Alexandria city in Egypt is one of important cities in the Mediterranean coast.
Alexandria suffers from many erosion problems along its coastline. The shore line of
Alexandria beach was studied using remote senescing and field data. A case study of a
submerged breakwater, which was constructed at Alexandria beach to stabilize the
eroded beach of Miami - Montaza areas in years 2000 to 2016, is presented. The data
of Alexandria beach were provided by Landsat7 satalite and proccseed by software
program ERDAS IMAGINE 2013 which gives high resolution of the studied area. Then
the shorelines were digitized by using software ARC GIS 10.1. This study introduce the
shoreline response due to the construction of the submerged breakwater using the
Digital Shoreline Analysis System (DSAS). The analysis shows shoreline accretion
along most areas of Miamy - Asafra - Mandara - Montaza beach with range from 1 to
20 meter per year. The shoreline erosion exist at eastern part of Asafra beach and
western part of Mandara beach with range from -1.5 to -10 meter per year. A beach
width varied from 30 to 55 m compared to 0.0 to 25 m before the submerged
breakwater. Shoreline change prediction model for coastal zone at Mimi to Montaza
beach in years 2020, 2030, and 2050 is estimated according to DSAS settings and
Linear regression rate. It was observed that during 2016-2050 the accretion distance
along the coastline of Miami to montaza beach was varied between (5- 60) m. Also the
predicted shoreline indicates that the erosion will take place in the Montaza beach with
distance varied between (20) m. |
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CONSTRUCTIVE METHODS OF PROTECTING BUILDINGS FROM SEISMIC EXPOSURE |
Author : Popov Ivan Aleksandrovich, Pervushina Maria Andreevna, Ermakova Anastasia Alekseevna, Klunduk Mikhail Alekseevich, Krainov Kirill Nikolaevich |
Abstract | Full Text |
Abstract :This article discusses approaches to assessing the seismic impact on the
underground parts of buildings and structures and analyzes possible measures to
minimize them.
The development of promising methods of constructive seismic protection dictated
by the imperative need and requirements of improving the safety of buildings and
structures of enhanced security is given. Without knowledge of the real geodynamic
risks (the impact of earthquakes, fluctuations in the level of groundwater), investing of
funds in seismic safety will be ineffective.
The main objective of the research is to develop a set of measures for assessing the
seismic-geotechnical situation of the construction site due to the fact that at present:
taking into account difficult ground conditions is estimated very roughly, the
seismicity of the territory is determined by averaged indicators; geodynamic data
(score) is insufficient for modeling and calculating the underground part of the
building; there is no practice of a comprehensive study of the system (the soil
foundation - the underground part - the upper structure) before and after
construction.
On the basis of detailed initial data of seismic micro zoning it is possible to
perform clarification of seismic hazard and to provide effective measures of seismic
protection of high-rise buildings. The analysis of modern methods of structural
protection of buildings in earthquake-prone areas. The classification of existing
systems of classical seismic protection on the principle of their work is presented. The
main methods are analyzed and the general conclusions and principles of seismic
protection of individual structures and buildings are formulated as a whole.
The variants of design solutions for the construction of foundations with a
separation layer, design and methods of construction of vertical and horizontal
geotechnical barriers are considered. The main advantages and disadvantages of the
described methods are given.
The main tendency of development of seismic protection of buildings is defined
and the direction of further researches is chosen: collecting and the analysis of experimental material on change of seismic rigidity of the soil bases modified by
reinforcement by rigid vertical ground concrete elements with a distributive layer. |
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APPLICATION OF TRANSLUCENT STRUCTURES AS MEANS OF THE EXPRESSIVENESS OF ARCHITECTURAL SPATIAL ENVIRONMENT OF PARKING |
Author : Skoropey Vyacheslav Dmitrievich, Bilyk Nikita Vladimirovich, Proshkov Aleksandr Vladislavovich, Medvedev Mikhail Vladimirovich |
Abstract | Full Text |
Abstract :The article deals with the integration of transport infrastructure facilities, i.e.
parking in the modern urban environment. The formation of parking as an
architectural object, a capital construction object when placed in an urban
environment, taking into account compensatory mechanisms, is analyzed.
The use of various types of spatial organization that provides technological
completeness, operation and aesthetic expressiveness using translucent enclosing
structures is considered.
The use of various types of glass in translucent structures during the formation of
facade solutions for parking lots is not only a decoration, but also a mean of
enhancing the aesthetics of the habitat of the modern city dweller |
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THE INFLUENCE OF POPULATION, ACCESSIBILITY, INFRASTRUCTURE AND COMMUNITY BEHAVIOR ON THE ENVIRONMENTAL RISK OF LAND USE CHANGES IN MAKASSAR CITY, INDONESIA |
Author : Sofyan Bachmid, Antariksa, Agung Murti Nugroho and Andi Tamsil |
Abstract | Full Text |
Abstract :Changes in land use or function are common problems in the big cities. The
objective of the study was to analyze the influence of population, accessibility,
infrastructure and community behavior on the problems in the city representing of
environmental risk on land use change in Makassar City. This type of research was a
quantitative descriptive analysis. Data collected from 250 respondents from 2 subdistricts of 14 sub-districts, namely Panakukang Sub-district and Mariso Sub-district.
The research method was carried out by a statistical approach, using Structural
Equational Modeling-Partial Least Square (SEM-PLS). The results of this study
indicated that environmental risk of land use changes in Makassar City was
influenced by infrastructure and community behavior. Accessibility has an effect on
the environmental risk. Its influence was significant both directly and indirectly
(through infrastructure and community behavior). Meanwhile, the population did not
have a direct effect on the environmental risks. The influence of the population on the
environmental risks increased through community behavior and infrastructure |
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FACTORS AFFECTING SUSTAINABILITY INTEGRATION IN PUBLIC CONSTRUCTION INDUSTRY IN JORDAN |
Author : Moawiah Alnsour |
Abstract | Full Text |
Abstract :The construction industry in Jordan is considered one of the most important sectors
to enhance the economic growth and it is responsible for offering jobs, employment and
wealth. Construction industry in Jordan has rapidly developed in the last few years due
to the huge public investments and infrastructure projects. These large projects utilize
and consume vast amounts of resources in terms of materials, water, and energy. Also,
they produce large amounts of products which are harmful to the environment and have
long term impacts upon economy and society. As a result, there is an increase interest
from public sector to address sustainability in public construction industry in Jordan
due to several challenges which are facing its development. These challenges are
namely, the lack of public funds, population growth, scarce of water resources,
environmental issues, climate change, greenhouse gases which occurred from several
sectors and especially from the construction industry. This paper presents factors
affecting the integration of sustainability in public construction industry in Jordan
which were identified from the content analysis approach. These factors were grouped
into six categories. The study concluded that these factors need to be considered by set
of governmental programs and best practices to become key factors to address
sustainability issues in a regional changing environment. |
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OPTIMIZATION OF THE UTILIZATION OF REGIONAL OWNED PROPERTY TO INCREASE REGIONAL INCOME |
Author : Syamsul Bachrie, Naswar, Achmad, Amaliyah, Maskun |
Abstract | Full Text |
Abstract :The identification and analysis of highest and best uses Regional Owned Property
(BMD) is a strategic step that can be taken to increase the usability and results of
BMD in order to increase regional income. The step is set forth in the agreement on
the utilization of BMD with standard terms which contain provisions regarding the
amount of contributions, rights and obligations of third parties, compensation and
administrative sanctions |
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A STUDY ON INDEX PROPERTIES OF ALKALINE SOILS TREATED WITH PHARMACEUTICAL INDUSTRIAL EFFLUENTS |
Author : J.V.Gurumurthy and E. Sanjeeva Rayudu |
Abstract | Full Text |
Abstract :Rapid Industrialization take part a key role in wealth of a country. Enormous
growing Industrialization has resulted in production of liquid and solid wastes.
Disposal of industrial wastes, especially on land has caused serious environmental
problems. Land contamination is a severe issue as it alters the index and engineering
properties of soils. Alteration of soil properties from industrial wastes results in
foundation failures and structural damages. The present study communicates the study
on index properties of alkaline soil by the application of partially treated
Pharmaceutical industrial effluent. In this investigation, studies were conducted for
identification of alkaline soils and analysation of industrial wastes of Pharmaceutical
and also index properties of existing soil and blended pharmaceutical effluent soil |
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RECTIFYING PERFORMANCE MEASUREMENTS IN INDONESIA’S GOVERNMENT AGENCIES |
Author : Hamsinah Djaing, Atta Irene Allorante, Sangkala |
Abstract | Full Text |
Abstract :Performance appraisal is a fundamental indicator to ensure public accountability
in the frame of good governance principles. Some studies examine effectiveness of
performance appraisal in public organizations, particularly local government
institutions. However, most studies focused on financial accountability achievement
which tend to overlook management-based perspective. Hence, this study aims to
analyze performance measurement that can contribute to improve performance in the
frame of management-based. The study was conducted in qualitative approach and
focused on government agencies in South Sulawesi Province, Indonesia. Data
collection techniques used were interview, observations and document study. The
result of this research is providing alternative performance measurement model not
only for the provincial government of South Sulawesi but also for other local
governments.
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DEFORMATIONAL BEHAVIOR OF THE FLAT SLIDING LAYER OF THE SPHERICAL BEARING |
Author : ?.?. ?damov, ?.?. Kamenskikh, Yu.?. Nosov |
Abstract | Full Text |
Abstract :Analysis of the friction properties of modified PTFE is performed, the functions
describing the change in the friction coefficient depending on the pressure level with a
maximum error from the experiments results less than 1% are proposed in the work.
The influence of friction on the deformation behavior of the flat sliding layer of the
spherical bearing on a periodicity cell model is considered. The geometrical
configuration of the flat sliding layer with truncated spherical hole for the lubricant is
considered. The periodicity cell includes one hole for lubrication. A series of
numerical experiments for three options for the thickness of the sliding layer from 4 to
8 mm with a recess for the lubricant, in the unfavorable case the absence of lubricant
is performed. The pattern of geometric configuration hole change with increasing
pressure level is established. It was found that an increase of the antifriction layer
thickness leads to a less significant deformation of the sliding layer thickness and the
spherical hole. The sliding layer with a thickness of 8 mm has the smallest level
minimum stress intensity and the material volume with the maximum stress intensity is
minimal for this variant of the sliding layer thickness compared to other variants. The
maximum integral stiffness of the 8 mm sliding layer decreased slightly by 1.74 and
1.5% on contact without and with lubricant respectively. |
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DEVELOPMENT OF DIGITAL ELEVATION MODEL FOR STORM -WATER MODELING FOR COASTAL REGION IN NAGAPATTINAM USING GEOSPATIAL STUDIES |
Author : Mahesh.R, Jose Ravindra Raj.B., Gokilan.M, Arul Anban, Milan.M, Nongmaithem Deepak Singh, Abdul Rahman.J and Ashutosh Das |
Abstract | Full Text |
Abstract :The frequent monsoon fluctuation in the coastal region of Nagapattinam city of
Tamil Nadu, which is known to be the rice bowl of southern India, has been imparting
increasing insecurity in the yield of the crops, but even the very living conditions of
the population, who are mostly dependent on agriculture. Road-expansion (NH-67) of
the recent years involving mass-removal of thousands of trees located at the roadside
have led to micro-climatic variation over the years. Since most of the agricultural land
of the area depends on the irrigation as well as water from canals of Cauvery River,
the precipitation (with respect to quantity, duration, and periodicity) has been the
lifeline of progress and sustenance of this zone. To track the baseline morphological
and lithological regimes of Nagapattinam city of Tamil Nadu (India) precisely, which
forms the heart of storm-water modeling, the present study was carried out. The
digital elevation modeling (DEM) was developed, using the toposheets and satellite
imageries so as to evaluate the basis for hydro-geological modeling. |
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ASSESSING THE REDUCTION OF CARBON DIOXIDE EMISSIONS THROUGH APPLYING HIGH-STRENGTH REINFORCING BARS TO AN OFFICE COMPLEX BUILDING |
Author : Seunguk Na and Inkwan Paik |
Abstract | Full Text |
Abstract :The construction industry accounts for approximately 23% of the national energy
consumption per year. Considering the production and transportation of construction
materials, the ratio of energy consumption increases up to 40 % in this industry.
Recently, several studies established effective strategies for reducing the carbon
dioxide emissions such as utilisation of low-carbon materials, material recycling,
minimisation of materials input, and selection of optimal structural systems. Along with
such approaches, there are various studies examined the application of high-strength
materials for minimum utilisation of construction materials. Despite this approach to
calculate CO2 emissions of structural materials, it is necessary to study the effectiveness
and relationships between the implementation of high-strength re-bars and normal rebars. In order to fill this gap, this study examines the reduction of reinforcement bars
and CO2 emissions by the implementation of high-strength re-bars in a practical
approach. In this study, an office complex building was selected to assess the quantity
variation over the normal re-bars. The office complex building is a rigid-frame
structure which has 25 storeys above the ground level and one storey in the
underground. Based on the analysed data, this study concluded that the application of
SD500 and SD600 high-strength re-bars would lead the quantity reduction of about
25% and 50% respectively compared to the structural system designed with SD400.
Generally, applications to high-strength materials, especially high-strength re-bars in
the study is potentially beneficial in both reducing the input amount of materials and
carbon dioxide emissions in the rigid-frame structure. |
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EFFECT OF DEAD SEA WATER ON DURABILITY, STRENGTH, FLEXURE AND BOND ON HARDENED CONCRETE. |
Author : Hamadallah AL-Baijat |
Abstract | Full Text |
Abstract :The purpose of this research is to study on the effect of the Dead Sea water on
concrete structures. The normal concrete is usually mixed and cured with fresh water
in order to protect the concrete from alkali attack which may lead to expansion and
deterioration and finally loss of durability of concrete. Compressive strength,
absorption, corrosion of steel, bond stress, and flexural stress were investigated in fresh
and saline (Dead Sea) waters. Salt durability, compressive strength, flexural stress, and
bond stress significantly decreased after exposure of concrete to Dead Sea saline water |
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EVALUATION THE TRAFFIC OPERATION FOR ARTERIAL HIGHWAYS WITHIN HILLA CITY BY USING HCS |
Author : Karrar Mohsin Shalaan, Hussein Ali Ewadh |
Abstract | Full Text |
Abstract :Hilla city is the center of Babylon Governorate. A huge number of trucks and
buses pass through the city of Hilla every day because it is located between the
crossroads of three important cities, Baghdad; the capital, as well as the holy cities of
Karbala and Najaf; the religious tourism center in Iraq. In addition the development
of the city and the growing population as a result the increase of automobiles within a
city. The previous reasons pose a danger to traffic condition. This study focus on the
evaluation the performance of traffic for some arterial highways.
The chosen roadways are multilane highways included 4 arterial highways 60-
street. Survey for sections of theses highways are conducted to collect data of the
desired information like traffic volume by video recording, geometry of sites by tools
of measurement. Software program HCS is used to analyze data, where HCS is
employed to determinate the Level-of-Service LOS making use of GIS tool to help in
display results.
Output of HCS introduces that highways operate with level of service between A to
E and there is no segment process with LOS F. The percent of flow-rate less than 1400
is 37.1% of selection sections. Previous results indicate that the traffic situation is
mostly good.
|
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EXCITED STATES OF +15CL ION USING HARTREE-FOCK WAVE FUNCTION |
Author : Rukia Jabar Dosh and Ali Abid Abojassim |
Abstract | Full Text |
Abstract :A study of the excited states of +15Cl ion in some excited state (1sns ) where
n=2,3,4,5 is performed. This paper focusing on examining the atomic properties in
position space of +15Cl ion in the excited state (1s 2s, 1s 3s, 1s 4s, 1s 5s ) where this
ion contains two electrons one electron in K-shell (1S) state and another electron in
(nS) state in shells (L, M,N,O). These atomic properties are important to describe of
the dynamics in atoms and ions. |
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FORECAST OF DEVELOPMENT OF ACADEMIC GIFTEDNESS OF RUSSIAN SCHOOLCHILDREN UNDER THE INFLUENCE OFEXTERNAL ENVIRONMENT FACTORS |
Author : Dr. Natalia L. Borscheva, Dr. Julia V. Fedorova and Dr. Marina I. Glukhova |
Abstract | Full Text |
Abstract :The article proposes a new methodological approach to the study and assessment
of the impact of socio-economic environment on the academic giftedness of Russian
students. The assessment of factors of the social and economic environment is carried
out, the correlation model is constructed, the key factors influencing academic
giftedness of school students are revealed. A regression model reflecting the influence
of socio-economic factors on the academic giftedness of Russian schoolchildren in the
dynamics from 2010 to 2018 is constructed. As a result of the research the forecast of
development of academic giftedness of Russian schoolchildren under the influence of
factors of socio-economic environment was built. |
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METHODOLOGICAL APPROACHES TO ANALYSIS OF CORRELATION RELATIONSHIPS BASED ON ECONOMIC STATISTICS |
Author : A.M. Petrov, T.M. Vorozheykina, G.I. Lukyanenko, L.A. Melnikova |
Abstract | Full Text |
Abstract :Clear economic activity management is one of the most essential aspects of any
company’s stable financial standing under contemporary conditions. Economic
activity management at a company is impossible without an in-depth and detailed
study of all the processes related to it. Analytics is of paramount importance for
managing a company’s settlement system.
This article is devoted to analyzing of correlations/correlation relationships
analysis methods based on economic statistics. The correlation analysis is used to
measure the strength of a relationship between variables and to evaluate the factors
that affect the result attribute the most, which distinguishes it from regression analysis
used to select the relationship form, model type, to determine rated values of the result
attribute. The regression and correlation analysis methods are used holistically. Pair
correlation aimed at studying correlations of a factor attribute and a result attribute
can be regarded as the most developed theoretically and used in practice. Such study
is called single-factor correlation and regression analysis used as the basis for
studying multi-factor stochastic relationships. The article also examines the approachof chain substitutions as a method of deterministic factor analysis in an accounting
and financial management system |
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EVALUATION OF WATER SHORTAGE IN EAST NILE DELTA |
Author : G. Mostafa, M. Fahmy, S. Ramadan and O. Shalash |
Abstract | Full Text |
Abstract :Egypt is one of the biggest and affected country in Africa and Middle East, which
affected by increasing population and many developing projects. The Nile is the artery
of life to Egypt as it shares with other ten countries as it considered the longest river
by adding its tributaries which reach 6,850 km. Egypt is suffering from deficit of water
resources at the present and in the future. Modeling may be helpful in solving water
shortage problems in the Nile valley with successful future planning. Many previous
studies had applied mathematical, physical and mechanical models on Nile river basin
and studying the impact of climate change and new strategies in water resources
management and using the GIS and share decisions with al participates. In the present
research, we apply WEAP program on east Nile delta and study Sharkia Governorate
as case study as it is the third big governorate in population and it is expected to
suffering from water deficit problem, so to achieve this deficit place and amount. We
feed the program with total resources of main canals (Ismailia and Bahr Mowais) and
total demand of water from different sectors; irrigation, domestic, and industrial
water demands. then the program determines the deficit area and redistributes the
water according to demand node priorities. We concluded that the water deficit value
=11.6MCM/year occur at the end of irrigation network (San Al Hagar & Al Salheya
region) where some illegal actions done by the farmers to overcome this water
shortage |
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SIMULATION OF VAPOR AND HEAT FLUXES OVER WET AND DRY REGIME IN PADDY FIELD ENVIRONMENT |
Author : Satyanto Krido Saptomo |
Abstract | Full Text |
Abstract :Alternating dry-wet paddy field management such as System of Rice Intensification
(SRI) had become an interesting subject in research and development in paddy
cultivation which also been subject for trial for its implementation. The field’s
environment’s variation of biophysical parameters related to production had also
become important to be studied. This study aims to simulate the variation of
evaporation and thermal condition over a wet and dry regime of paddy field. The
simulation model used in this study was a combination of numerical surface energy
balance and soil water flow model consisting two layered resistance energy balance
model for non-ponded field, one-dimensional atmospheric boundary layer model of
wind, temperature and vapor changes, and soil heat transfer and soil water flow
models. Meteorological parameters at the site were measured and utilized as input for
the simulation. The simulation shows the fluctuating latent, sensible and ground heat
flux and also the variation of temperature, and soil condition for wet and dry regime
of paddy field. |
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EFFECT OF SHEEP WOOL FIBER ON FRESH AND HARDENED PROPERTIES OF FIBER REINFORCED CONCRETE |
Author : Rayed Alyousef, Khaled Aldossari, Omar Ibrahim, Haretha Al Jabr, Hisham Alabduljabbar, Abdeliazim Mustafa Mohamed and Ayesha Siddika |
Abstract | Full Text |
Abstract :Fiber reinforced cementitious composites are gaining attention in construction
industry because of the high strength, ductility and energy absorption capacity.
Concrete production is still under consideration to improve the sustainability and
environmentally safety. Therefore, natural fiber reinforced concrete is the good
alternative. Although sheep wools are producing a huge amount of waste, which can
be utilized as building material in concrete if properly recycled. The addition of sheep
wool in concrete mix was not very new, it has been used for insulation purposes. In
this research the mechanical properties of sheep wool fiber reinforced concrete
(SWFRC) were investigated. Total sixty cylindrical specimens and prisms were tested
in this experiment to assess the fresh and hardened properties of SWFRC. The aim
study was fulfilled by the results obtained from the split tensile test and flexural test.
The weak tensile strength of concrete was enhanced by the addition of high tensile
sheep wool and the cracks bridging effect of smooth and elastic fibers were worked to
enhance the ductility and flexural capacity of concrete. Meanwhile, the compressive
strength reduction due to addition of sheep wool in concrete can be minimized by
proper treatment, which must need to investigate correspondingly. |
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EXPERIMENTAL INVESTIGATION ON PROPERTIES OF HIGH STRENGTH CONCRETE USING POZZOLANIC MATERIALS AND MANUFACTURED SAND |
Author : Bui Le Anh Tuan |
Abstract | Full Text |
Abstract :In this paper, high strength concretes (HSC) containing manufactured sand (or
maybe called crushed sand) as fine aggregate in the presence of fly ash (FA), silica
fume (SF) were made. The HSC mixtures were designed to achieve 28-day
compressive strength beyond 55 MPa. Compressive strength, drying shrinkage, watertightness and sulfate attack tests were conducted to evaluate the feasibility on the
production of HSC having crushed sand, FA and SF. The test results indicated that the
compressive strength of all HSC mixtures exceeded 55 MPa at 28 days. There was an
improvement in the compressive strength following the addition of SF in HSC.
Introducing crushed sand to HSC as fine aggregate led to a reduction in compressive
strength. The usage of crushed sand most effectively decreased the length change of
HSC, compared with HSC containing natural sand. HSC mixtures can be classified
into > B12 water-tightness class. Furthermore, weight loss of HSC was in a range of
0.04?0.29% |
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THE DESTRUCTION OF CORAL REEFS IN THE SHORT STORY “KAMI AKAN MATI, LIN” (WE WILL DIE, LIN) |
Author : Maharam Mamat, Mawar Safei and Maisarah Yaacob |
Abstract | Full Text |
Abstract :The author keeps raising issues related to the environment in her works, which
function as the beautiful elements and the backdrop of events. Recently, more writers
are beginning to use environment as the main theme to move stories and their
thoughts.. This study analyses the destruction of coral reefs in the short story “Kami
Akan Mati, Lin” (We Will Die, Lin) authored by Seroja Theavy Balakrishnan. The
main focus on the scrutiny is on the maritime pollution which has become the cause of
coral destruction. The findings indicate that the destruction was due to the water
pollution (sea and river) following human activities, such as ship waste disposal,
logging, industrial activities, developments, and illegal catching of coral reefs. These
activities cause that rivers and seas to be polluted, which in turn, threatens the
ecology of marine life including that of the coral reefs. In conclusion, human activities
pollute the seas and rivers, and illegal catching of coral reefs lead to the extinction of
marine ecology, which consequently threatens human life again |
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MAKING AND CHARACTERIZATION OF POLYMER CONCRETE WITH AGGREGATE FROM SAND, FLOAT STONE AND SUGAR CANE WASTE AS SOUND ABSORPTION |
Author : Fauzi, Lukman Hakim, Diego Castro Siregar |
Abstract | Full Text |
Abstract :Environmentally friendly polymer concrete by utilizing waste has been widely
developed, one of them is pumice and bagasse fiber waste. The use of these two wastes
has not been optimal, for that by being used as fillers in concrete polymers are
expected to have a higher economic value. This study aims to determine the optimal
composition of natural binder and to know the mechanical characteristics and sound
absorption of polymer concrete which is fabricated using pumice, sand and sugarcane
waste with epoxy resin adhesive. The composition variations made are sand, pumice
(1: 1) or (50 gr: 50 gr), rubber yarn solid waste 0%, 1%, 2%, 3%, 4% and 5% of the
total weight of sand and stone buoyant, variations in the composition of polyurethane
20%, 25% and 30% of the total weight of sand and pumice. Then the characterization
was carried out in the form of density test, porosity, compressive strength, flexural
strength, polymer concrete morphology, and sound absorption coefficient. From the
test results obtained the characteristics of polymer concrete have optimum value,
namely density (1.655 gr / cm3), water absorption (8.864%) porosity (16.151%),
compressive strength (8.59 MPa), flexural strength (18.171 MPa), impact strength (
2,376 KJ / m2). Sound absorption coefficients were obtained for samples B6 (1.00),
A6 (0.48) and C6 (0.20). This polymer concrete is lighter than conventional concrete
that has better strength.
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THE INFLUENCE OF PERFORMANCE AND POLICY OF LOCAL INSTITUTIONS AS WELL AS COMMUNITY PARTICIPATION ON THE GROWTH OF SLUMS IN URBAN AREA OF MAKASSAR CITY INDONESIA |
Author : Sudarman Supardi, Antariksa, Agung Murti Nugroho and Lambang Basri Said |
Abstract | Full Text |
Abstract :The history of settlements development began with a set of settlements in a small
scale, then along with the population growth in the urban area. Latter, it developed into
a medium city and eventually developed into a big city. The objectives of this study were
to analyze the performance and policies, also the community participation on the
growth of slums in the urban area and to analyze the slum factors in the growth of slums
in urban area. Data collected from 250 respondents from 2 sub-districts of 14 subdistricts, namely Panakukang Sub-district and Mariso Sub-district. The method of
discussion employs a statistical approach, Structural Equational Modeling-Partial
Least Square (SEM-PLS). The results of the analysis show that 1) the path coefficient
of institutional performance on the institutional policy was 0.735 with t-statistic 20.2356
(p <0.05), it means that the performance aspects significantly influenced policy; 2) the
path coefficient of institutional performance on community participation was 0.162 with
t-statistics 2.037 (p <0.05), it means that the aspects of performance significantly
influenced community participation; 3) The path coefficient of institutional policy on
the community participation was 0.640 with t-statistic 8.635 (p <0.05), it means that the
policy had a significant effect on community participation; 4). the path coefficient of
institutional performance on slums factors was 0.063 with t-statistics 0.611 (p> 0.05), it means that iinstitutional performance had a significant effect on the slums factors; 5).
the path coefficient of institutional policy on the slums factors was 0.444 with t-statistics
7.462 (p <0.05), it means that institutional policy did not have a significant effect on
the slums factors; and 6) The path coefficient of participation on slums factors was
0.487 with t-statistics 5.417 (p <0.05), it means that participation had a significant
effect on the factors of slums. |
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PLANNING FOR FACILITY NEEDS IN TRAIN STATION BASED ON COMPARISON OF CONNECTING MODES USAGE |
Author : Anita Susanti, Ria Asih Aryani Soemitro, Hitapriya Suprayitno |
Abstract | Full Text |
Abstract :The main objective of this research is to know the comparison of the use of mode as
a reference in developing the type of facility needed at the train station. Planning for
the preparation of these needs can be done by means of an interview survey for
passengers on the Surabaya-Lamongan (SULAM) commuter train in LamonganSurabaya on weekdays. In some modes, like motorbikes and cars, they are still classified
again. For example, motorbike use is divided into several categories, namely: private
vehicles (delivered, carried alone), online services, and traditional gojek. In the use of
cars also divided into several categories, namely: Private Vehicles (delivered, carried
alone), online services, and conventional taxi. The categories in both types of modes
are gap analysis of this study. The benefit of being made a category for both types of
modes is to plan the type of facility needed for vehicles to stop both inside and outside
the train station. The type of facility type planning, is a renewal of this research, because
previous research was limited to the comparison of vehicles used. Another benefit of
this research is that it can produce new research to plan simulation of vehicle parking
capacity |
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ENVIRONMENTAL DISCLOSURE, EARNINGS RESPONSE COEFFICIENT, AND DOMINANT OWNER IN MANUFACTURING COMPANY IN INDONESIA |
Author : Citra Amalia Alim and Amalia Rizki |
Abstract | Full Text |
Abstract :This study investigates the effect of environmental disclosure toward earnings
response coefficient and the effect of dominant owners voting-cash flow rights wedge
toward relation of environmental disclosure and earnings response coefficient in
manufacturing company in Indonesia. This study is crucial because investors needs
has changed from profit oriented only to Triple-P Bottom Line which is Profit, Planet,
and People. This condition makes some companies improve environmental disclosure
as their sustainability reports. They did this for attracting investors to invest in their
company. This is quantitative study using multiple linear regression. By using
purposive sampling, we collected 161 annual reports of 115 manufacturing companies
which are listed in Indonesia Stock Exchange as data. The result show that
environmental disclosure positively affects earnings response coefficient. However,
dominant owners voting-cash flow wedge has negative impact toward the relation of
environmental disclosure and earnings response coefficient. Therefore, this results
offer evidence of the importance of environmental disclosure in sustainability reports
of manufacturing company. However, the stakeholder of the company should think
about dominant owners voting-cash flow wedge because it can affect inverstors
trust. Contribution of this study is an effort of the company to report environmental
disclosure carefully in order to attract the invertors |
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EXPLORATION OF INSTITUTIONAL CHALLENGES FOR ADOPTING CLOUD COMPUTING IN E-LEARNING SYSTEMS |
Author : Abbas Hussien Ali, Shalau Farhad Hussien and Yalmaz Najmaldin Taher |
Abstract | Full Text |
Abstract :Cloud computing is a new on-demand delivery of software and hardware resources
to consumers over the internet. It has been proposed as a preferred solution for future
systems of education. Furthermore, using cloud computing grows rapidly on various
applications in different education fields such as E-learning. It has become a critical
point on any institutional deploying, creating a remote educations system and designing
of the perfect web-based learning environment. Cloud computing is distinguished by
providing large storage resources with cost savings and faster data transfer.
Nowadays, data of several social networks (photos, music, videos etc.) are stored in
their own purchased cloud. As a consequence of using these applications, cloud
computing is indirectly used is our life. Therefore, cloud computing (or cloud
technology). In other words, the services that one can easily access these applications
in electronic devices is called cloud computing.
E-learning systems basically require many software and hardware resources to
implement education tasks effectively. Therefore, adopting available cloud-based
application can make the tasks more affordable. Cloud offers the opportunity to work
from anywhere and combines software, hardware and hosting services in a single
structure with a technology that collects solutions for organizations. To achieve this
goal, it facilitates the operation by enabling customers to reach the same data
simultaneously. This article, thus, investigates barriers to implement cloud e-learning
adoption in Iraqi education institutions |
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THE APPRAISAL OF LEGAL FRAMEWORK REGULATING GAS FLARING IN NIGERIA’S UPSTREAM PETROLEUM SECTOR: HOW EFFICIENT? |
Author : Olujobi, Olusola Joshua and Olusola-Olujobi, Temilola |
Abstract | Full Text |
Abstract :Nigeria is ranked one of the main producers of crude oil in Africa and due to this,
oil exploration activities have occasioned high rate of gas flaring which was intensified
by poor enforcement of anti-gas flaring laws by the regulatory authorities. Associated
natural gas is generated from oil production and it is flared in large volumes, thereby
leading to the emission of greenhouse gases and a waste of natural resources which
could have potentially spawned billions of dollars for the Federal government.
Nigerians are apprehensive that if nothing is done to combat this menace, the
environment and man will be at risk due its damaging consequences. There is therefore
the need to stop gas flaring by replicating the approaches used in the relatively
advanced petroleum countries like Norway to tackle the menace. The research is an
appraisal of legal frameworks regulating gas flaring in Nigeria’s Upstream Petroleum
Sector. It is a doctrinal legal research that adopts a library based research approach.
Weak enforcement and ambiguity of some anti-gas flaring laws are largely identified
as the key factors responsible for the menace. It recommends the use of more advanced
technologies, sophisticated mixture of regulations and none-regulatory incentives such
as fiscal policies, gas market restructuring and proffer practical suggestions.
JEL Classifications: K2, K42, Q4, Q5, P28, K32, K12. |
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QUALITY MANAGEMENT PRACTICES OF CONTRACTING FIRMS IN BUILDING PROJECT DELIVERY |
Author : Bankole Oluwabusuyi Osho |
Abstract | Full Text |
Abstract :The study sets out to examine the quality management practices of contractors in
building project delivery in Nigeria. The research study is an organizational based
study where top professionals from contracting firms in Lagos were the target
respondents. The study adopted a quantitative research method with the use of
questionnaire to elicit data from the respondents. The study revealed that quality
control procedure is the top ranked quality management system adopted by
contracting firms in building project delivery. The top ranked barrier and benefit of
quality management practices of contracting firms are shortage of skilled workers and
improvement in company reputation. The research indicated that there is a statistical
significant difference was found in compliance with QMS between multinational
construction firms and indigenous construction firms. The poor quality associated
with most construction project in Nigeria, leading to clients’ dissatisfaction could be
linked with the industry not adopting the quality management systems as adopted in
the construction industry of most developed countries.
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PROPOSED ALGORITHM OF ELIMINATING REDUNDANT DATA OF LASER SCANNING FOR CREATING DIGITAL RELIEF MODELS |
Author : Kochneva O.E., Kryltcov S.B., Feshchenko R.Y |
Abstract | Full Text |
Abstract :Aerial laser scanning for creating digital relief models has been widely applied in
Russia for over 20 years. For processing results of aerial laser scanning, it is
necessary to classify cloud of laser points. Classification of cloud of laser points is
performed via commercial software products (produced abroad), which frequently use
refinement algorithms of “Earth” class data, which consider the relief particularities.
The paper puts forward a proprietary algorithm of laser scanning data interpolation,
enabling to remove redundant cloud of laser points of “Earth” class when data
granularity reduces, in the first place, for flat terrain. The paper provides a detailed
stepwise description of algorithm operation, and the results of constructing a digital
relief model on the basis of the cloud of laser points of “Earth” class, processed via
the proposed algorithm |
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DETERMINING HEIGHT OF BENCHES IN OPEN MINING OF STEEPLY-DIPPING DEPOSITS WITH CONSIDERATION OF ORE LOSSES AND DILUTION |
Author : Fomin Sergey Igorevich, Rodionov Alexandr Olegovich, Ryzhkov Sergey Konstantinovich |
Abstract | Full Text |
Abstract :At present stage of the development of the mineral resource complex, a trend is
seen to deterioration of geological and engineering conditions of mining ore deposits,
which entails increase of losses and dilution of mineral, causing increase of the cost
price of mineral production and processing. With consideration of the specified
limiting conditions, the maximal net present value of deposit mining will be achieved
with minimal economic loss resulted from mineral losses and dilution.
For the conditions of steeply-sloping ore pits, analysis was conducted of the
impact of the bench height on the value of mineral losses and dilution, and necessary
calculations were made to identify the degree of influence of the pit bench height and
the height of the triangle of inmixed waster rocks on the values of losses and dilution
by three possible modes of preparing a new horizon (in mining from the hanging wall
to the bottom wall, in preparation across the ore body).
According to the results of the research, conclusions were made that the economic
loss related to the losses and dilution, increase in direct proportion to the increase of
bench heights; the mode of horizon preparation significantly influences the value of
losses and dilution and the economic losses related to them; the value of losses and
dilution increases with increase of bench height, and the current stripping ratio
reduces. For this reason, for determining the optimal bench height, joint consideration
of the losses and dilution with the current stripping ratio, is required. The conducted
technical and economic calculations result in recommending the bench height in ore
zone, equal to 5 m. with maintaining the rock bench height of 20 meters |
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MODEL FOR SPATIAL POLICY IN THE SOCIAL WELFARE AND JUSTICE-BASED REGIONS: A STUDY OF LAND USE CONVERSION IN REGION III CIREBON INDONESIA |
Author : Haris Budiman, Anis Mashdurohatun, Eman Suparman |
Abstract | Full Text |
Abstract :Nowadays, the effort to create a comfortable, productive and sustainable space
still faces various challenges as it is shown by the widespread of land use conversion
which causes flood in the rainy season and drought in the dry season, the increasing
frequency and coverage of disasters, as well as the increasing number of slum
housings, traffic congestion, and environmental pollution. This study aims to analyze
the model of regional policies in spatial planning, to discover and describe the
weaknesses on the implementation of regional policies in spatial planning as well as
to explain the importance of reconstructing regional policies in spatial planning to
promote social welfare. The method used was socio legal with qualitative analysis to
examine the condition of natural objects where the researcher is the key instrument.
The data were then collected through observations and interviews. The results of the
study showed that the implementation of regional policies in spatial planning is not
complemented by the Detailed Spatial Planning (RDTR) due to a legal vacuum
resulting in legal uncertainty. This condition then has implications for violations of
land use conversion that is very detrimental to society. Thus, it is necessary to create a
regional policy model that is based on values of social welfare and justice as an effort
to reform the law by formulating an integrated RTRW and RDTR to ensure legal
certainty which will then have implications for improving social welfare and justice |
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COMMON PROBLEMS OF EXISTING PUBLIC APARTMENT BUILDINGS IN VIETNAM |
Author : Dinh Tuan Hai |
Abstract | Full Text |
Abstract :The aim of this study was to investigate the current condition of existing public
apartment buildings in Vietnam. In the old apartment buildings, problems included
structural failure, aging, impact of outdoor environment, poor indoor and outdoor
living conditions, and lack of service facilities. In the newly-built high-rise buildings,
poor outdoor living conditions, lacking of natural lighting, polluted air, inconvenience
access and high level of traffic noise are observed due to high density of buildings
constructed in a land area. In addition, there are high risk at fire and difficulties in
firefighting and emergency evacuation where hundreds of residential buildings were
found not to comply with fire safety standards. Improvements are recommended at the
end of this research for minimizing, even totally eliminating current shortcomings of
existing public apartment buildings. Throughout the study, relevant parties and
authorities enable to fully understand quality conditions of existing condominium
buildings and to propose proper corrective actions.
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OPERATING EFFICIENCY STUDY OF AVIATION SECURITY SCREENERS USING THE EYE-TRACKING TECHNOLOGY AND FUZZY MODELS |
Author : A. A. Gladkikh, An. K. Volkov, Al. K. Volkov, V. M. Ilin, YU. V. Sulimov, N. A. Pchelin |
Abstract | Full Text |
Abstract :This paper describes studies related to the influence of the fatigue factor on the
oculomotor activity of aviation security screeners. Analysis of possible instrumental
diagnostic methods of the functional status of aviation security screeners was
conducted and the Eye-tracking technology was selected as the one with the greatest
advantages. Overview of the experience in the application of the Eye-tracking
technology when diagnosing the functional status of aviation security screeners is
presented. In this paper for the first time as follows from experimental studies using
the Eye-tracking technology potential fatigue markers of aviation security screeners
with the most accurate changes were identified consistent with earlier studies pursued
by other authors. As the result of solving the problem of the statistical hypothesis
testing it is found that such oculomotor reactions as the blink frequency, the blink
duration average and the pupils diameter average can be used for diagnosing the
functional status of aviation security screeners whereas the saccade frequency did not
change for certain in the period of studies pursued and is not potentially useful for
monitoring. It was demonstrated that the Sugeno fuzzy model based on the subtractive
clustering and ANFIS-learning does better approximate the dependence between
oculomotor activity indicators of aviation security screeners and the prohibited items
detection efficiency in comparison with other models. Model fidelity by the RootMean-Square Error criterion on the learning sample is 0,0348 and on the test sample
is 0,0858 as the case may be. Scientific and theoretical value of this paper involves
developing scientific knowledge related to the influence of the fatigue factor on the
oculomotor activity of aviation security screeners in the course of the working activity |
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EXPERIMENTAL INVESTIGATION ON STRENGTH CHARACTERISTICS OF CONCRETE BY USING PLASTIC WASTE AND BAGASSE |
Author : Dr. Swaminathen.A.N, Ramya.M, Mathan Kumar.N |
Abstract | Full Text |
Abstract :This study focuses on the utilization of non-biodegradable plastic waste and
bagasse as partial replacement for fine aggregate. Fine aggregate is partially
replaced by plastic and bagasse in proportion of 5%, 7.5%, and 10% respectively .We
are adding plastic 60% and bagasse 40%. The tests are conducted to study the
compressive strength, split tensile strength, flexural strength of concrete for M25
grade and their results are compared with those of conventional concrete. The
maximum value is obtained for 7.5% of replacement level.
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POTENTIAL OF CURCUMIN IN PYRAMID CELL NECROSIS OF MICE (MUS MUSCULUS) DUE TO METHYLMERCURY EXPOSURE |
Author : Gibran Dewanda, Widjiati and Sri Pantja Madyawati |
Abstract | Full Text |
Abstract :Mercury pollution in the aquatic environment can cause intoxication of marine
organisms and the formation of free radicals in the human body if consumed. Curcumin
is a natural ingredient that contains extracellular antioxidants to overcome the
formation of free radicals in the body. The purpose of the study was to determine the
effect of administering curcumin to the number of pyramid cells that were necrotic in
mice (Mus musculus) exposed to methylmercury. This experiment used a completely
randomized design with 4 groups of mice, i.e. 0.5 ml distilled water, 0.056 mg/kg
methylmercury, 0.0056 mg/kg methylmercury + 150 mg/kg curcumin and 0.0056 mg/kg
methylmercury + 300 mg/kg curcumin. Examination of total pyramid cell necrosis was
observed with a 400x magnification light microscope. In this study, there was a
decrease in the number of pyramid cell necrosis in mice. The decrease in the number
of necrotic cells was directly proportional to the increase in dose given. The treatment
results as positive controls showed the highest value with the number of pyramid cells
experiencing necrosis of 23.28. The highest decreases in the number of each treatment
were 10.32 in 150 mg/kgBW curcumin and 5.80 in 300 mg/kgBW curcumin. Curcumin
can reduce the number of pyramid cells that experience necrosis due to exposure to
methylmercury |
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ADDITION OF ORGANIC WASTE ON NILE TILAPIA (OREOCHROMIS NILOTICUS) COMMERCIAL FISH FEEDING |
Author : Moniq Anastasya Yunita, Sudarno, Abdul Manan |
Abstract | Full Text |
Abstract :Nile tilapia (Oreochromis niloticus) is an important commodity in the aquaculture
of freshwater fish in Indonesia, apart from its distinctive taste but also a good protein
content for fulfilling community nutrition. However, the high demand for nile tilapia is
not enough just to rely on fishermen, so it takes effort to increase the growth rate of it.
This study aimed to determine the effect of shrimp waste and coconut pulp addition to
enhance protein retention, energy retention and growth rate of nile tilapia
(Oreochromis niloticus). This was an experimental study by means of completely
randomized design method. There were five treatments and four replications in each
treatment. The treatment used was the addition of shrimp waste and coconut pulp on
commercial feed. Two hundred nile tilapia were used in this study. The study was
conducted for 30 days by feeding three times a day. The research data were analyzed
using ANOVA and Duncan. Based on the results of the study, it can be seen that the
addition of 30% shrimp waste and coconut pulp flour to nile tilapia commercial feed
(Oreochromis niloticus) significantly affected the energy retention value of 12,050%,
protein retention of 21 245% and growth rate of 1.471%. Adding organic waste to
commercial fish feed can boost the growth rate of nile tilapia.
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ADDITION OF CURCUMA (CURCUMA XANTHORRHIZA) AS AN ANTIOXIDANT ON AFRICAN CATFISH (CLARIAS GARIEPINUS) COMMERCIAL FISH FEEDING |
Author : Mega Dwi Lestari, Muhammad Arief, Woro Hastuti Satyantini |
Abstract | Full Text |
Abstract :African catfish cultivation using a high stock solid system can cause increased
stress and disease susceptibility to African catfish. Thus, it is necessary to use natural
ingredients of antioxidants as a substitute for chemicals or antibiotics to avoid
resistance. This study aimed to determine the effect of curcuma flour addition on
increasing leukocyte counts, leukocyte differential and survival rate as parameters of
African catfish cultivation success. This study was an experimental study, by the
completely randomized design (CRD) with 4 treatments and each treatment received 5
replications so there were 20 experimental units. The variables observed were doses
of curcuma flour, total leukocytes, differential leukocytes and the survival levels of
African catfish.The results of this study indicated that the addition of curcuma flour in
African catfish (Clarias gariepinus) feed formulation were quite effective to influence
the increase in leukocyte counts and differential leukocytes in African catfish bodies,
although the survival rate was still lower than control (without curcuma).The addition
of curcuma (Clarias gariepinus) flour in catfish feed formulation could increase
leukocyte counts, leukocyte differential and the survival levels of African catfish to
obtain maximum results. The most effective dose of curcuma flour was by mixing 4%
curcuma flour in 100% formulation feed.
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THE POTENTIAL OF EDIBLE COATING OF BETEL LEAF ON THE QUALITY OF GIANT GOURAMI (OSPHRONEMUS GOURAMY) |
Author : Olga Adisty, Heru Pramono and Sudarno |
Abstract | Full Text |
Abstract :Fresh fish has several disadvantages if left for a long time, namely damage and
deterioration in quality. If it is not inhibited, the fish will experience continuous
deterioration of quality. Therefore, fresh fish such as gourami, which are popular
within consumers, need a special care to reduce damage and maintain quality to stay
fresh for a long time. The author tried to examine the use of edible coating on gourami
with additional essential oils with betel leaf (Piper betel) to sensory quality, and shelf
life of gourami fillets (Osphronemus Gouramy). This study used a Randomized Block
Design (RBD) method with three groups. Each group has six replications with total of
18 (eighteen) samples. Organoleptic test, TPC, and pH tests are the main parameters
in this study. Edible coat of 4% chelelatin with 1% betel leaf essential oil affecting the
sensory quality and shelf life of gourami. It was able to maintain fillets for 12 hours
with room temperature. As well as edible coat of 4% gelatin with 1% betel leaf essential
oil were able to maintain the total number of bacteria according to SNI standard until
the 12th hour of shelf life with room temperature that is equal to 4.9x10. In conclusion,
the addition of gelatin with betel essential oil had significant influence towards the
sensory quality and shelf life of gourami fillets. In addition, it is also able to maintain
the shelf life of gourami for 12 hours of storage with room temperature. |
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HEAVY METALS OF LEAD (PB) ACCUMULATION IN SEAWEED (GRACILARIA SP) CULTIVATION AND ECOSYSTEM AROUND THE INDUSTRIAL WASTE DISPOSAL RIVER |
Author : Kartika Angga Dwi Pratiwi., Adriana Monica Sahidu, and Rahayu Kusdarwati |
Abstract | Full Text |
Abstract :The activities of industrial waste disposal and disasters of Sidoarjo volcanic
mudflow into the river give a negative impact to the surrounding aquatic ecosystems.
But as a fishery center area, its activity depends on the aquatic ecosystem condition.
This study aimed to evaluate the levels of lead (Pb) in seaweed (Gracilaria sp.)
cultivation, sedimentation and water quality of seaweed aquaculture ponds around the
river estuary, the center of industrial waste disposal.. Sample collection of seaweed,
sediment and pond water were conducted using simple random sampling method.
Measurement of the lead (Pb) levels in seaweed, sediment, and pond water samples
used the Atomic Absorption Spectrophotometry (AAS) method. Based on the results of
this study, the concentration of lead metal levels in seaweed and sediment showed the
highest lead metal concentration values of 0.76 mg/kg and 0.58 mg/kg. However, the
concentration of heavy metals and water quality of pound water tended to be stable
with a value of <0.0764 mg / l. In conclusion, there was an increase in the lead metal
concentration in seaweed cultivation and sediment of pond water in normal water
quality conditions. |
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MORINGA LEAF FLOUR (MORINGA OLEIFERA) AS AN ALTERNATIVE FOR THE REPLACEMENT OF CRUDE FAT AND ENERGY IN THE COMMERCIAL FEED OF SIAMESE CATFISH (PANGASIUS HYPOTALAMUS) |
Author : Risky Octavia Dwi Nurcahyani, Boedi Setya Rahardja and Moh Anam Al Arif |
Abstract | Full Text |
Abstract :The increase of the production costs and low nutrient content in commercial fish
feeds result in the inhibition of the aquaculture of Siamese catfish (Pangasius
hypotalamus). Moringa oleifera can be an alternative solution to substitute the
commercial fish feed, since it has high nutrient content and can be obtained at low
price. To determine the effect of Moringa leaf as a substitute for commercial fish feed
in the crude fat and energy content of Siamese catfish. This was an experimental study
with completely randomized design (CRD). The treatments consisted of five
experimental diets P0 (99% commercial feed + 1% tapioca flour), P1 (91% commercial
feed + 1% tapioca flour + 8% Moringa leaf flour), P2 (87% commercial feed + 1%
tapioca flour + 12% Moringa leaf flour), P3 (83% commercial feed + 1% tapioca flour
+ 16% Moringa leaf flour), P4 (79% commercial feed + 1% tapioca flour + 20%
Moringa leaf flour). The results of this study showed that there were no significant
differences in total content of crude fat and energy among the Siamese catfish in all five
treatments group. The highest crude fat content in Siamese catfish was found in P4
treatment group with a percentage of 5.5212%. Whereas the highest energy content in
Siamese meat was found in P4 treatment group with a value of 3268,187Kcal / Kg. The
substitution of Moringa leaf flour on commercial feed had no effect on the amount of
crude fat and energy content of Siamese catfish meat |
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PREVALENCE AND DEGREE OF INFECTION OF TOXOCARIASIS IN DAIRY CALVES (HOLSTEIN FRIESIAN) WITH SEVERAL AGE GROUPS |
Author : Edward Yonas Kristijanto, Kusnoto and Suryanie Sarudji |
Abstract | Full Text |
Abstract :Background: Worm infection is one of the most common diseases affecting
livestock, one of those diseases is Toxocara vitulorum. Infection can cause diarrhea,
reduced productivity, intestinal and bile obstruction, to death in livestock. However,
this disease is often ignored by farmers. Observing from an economic perspective, this
disease results in very high losses for farmers.
Objective: This study aimed to determine the effect of dairy calves age on the
prevalence of toxocariasis and determine the effect of different degrees of toxocariasis
infection on dairy calves (Holstein Friesian).
Methods: This study used a descriptive laboratory method. The samples studied
were 120 stool or feces samples of calves aged 0-6 months. The number of samples in
each age group of 0-2 months, 2-4 months and 4-6 months were 40 samples. The
independent variable of this study was the age of dairy calves. The dependent variables
were the prevalence and degree of toxocariasis infection. Whereas, the control
variables were feed and cattle nation.
Results: From 120 samples studied, 5 feces samples were positively infected with
T. vitulorum. From 5 samples that were positively infected, 4 of them came from the
age group of 0-2 months and the other 1 from the age group of 2-4 months. Whereas,
in the 4-6 month age group all negative samples were from T. vitulorum infection. The
mean value of infection rates in the 0-2 month age group was 4.219, in the 2-4 month
age group was 1.066 and in the 4-6 month age group was 0.707.
Conclusion: The prevalence of toxocariasis and the degree of toxocariasis infection
based on the most influential age differences were at the age of 0-2 months.
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CREATING A NEW CRITICAL DEPTH EQUATION FOR GRADUALLY VARIED FLOW IN CIRCULAR SECTION |
Author : Le Van Nghi and Nguyen Minh Ngoc |
Abstract | Full Text |
Abstract :Drawing the water surfaces in open-channel for gradually varied flow is relatively
complicated and difficult. In order to identify which type of the water surfaces among
12 water-surface styles we have to base on critical depth (yc) and normal depth (yo). In
this case, to calculate the critical depth (yc) that particularly need to use the Semi
empirical equations.
This article generally the way to compute the critical depth; the way to compute
flow in circular sewers; analyze the application of existing formulas and then offering
a new equation to compute the critical depth. This new equation will help to have
more accurate result. Also it is more comfortable to non-uniform flow in the circular
section/ circular sewers |
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COLLABORATIVE GOVERNANCE IN CONTROLLING AIR POLLUTION IN METROPOLITAN |
Author : Dr. Falih Suaedi, Denny Irawan, Nurul Jamila Hariani |
Abstract | Full Text |
Abstract :Background
The level of air pollution in Surabaya is high as a result of massive number of
vehicles on the street. Local government has executed several procedures to reduce
air pollution, but has a problem because of the resources available. Collaborative
governance can become the way to solve the lack of resources to tackle the problem of
air pollution.
Objective
This study aims to describe the process of collaborative governance in maintance
of air pollution in Surabaya City.
Method
This study uses qualitative descriptive. To determine the source of the data, this
study uses purposive and snowball technique. The data are collected using library
studies and conducting interviews. To test the validity of the data, researcher uses the
source triangulation technique. Data analysis in this study is conducted by reducing,
organizing data, and drawing conclusions.
Result
The result shows that the criteria of collaborative governance are not fully
executed because of the lack of involvement of other stakeholders in the
collaboration forum and insufficient financial resources.
Conclusion
Collaborative governance need to be maintained by both government and
stakeholders for the best result |
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UNEARTHING THE LINK BETWEEN SOCIO-ECONOMIC STATUS AND WALLING MATERIAL SELECTION FOR AFFORDABLE HOUSING IN SOUTHWEST NIGERIA |
Author : O. A. Alagbe, P. A. Aderonmu, T. O. Alagbe, G. M. Alalade, C. O. Ukaegbu |
Abstract | Full Text |
Abstract :The walling material component constitutes a substantial part of the building
envelope with consequent implication on overall housing cost. This study examined
the impact of socio-economic status (SES) of respondents on walling material
selection preferences for affordable housing in southwest Nigeria. Data was collected
in a cross-sectional field survey through administration of structured questionnaires
on randomly selected respondents in four Local Government Areas (LGAs) of three
States in Southwest Nigeria. Data obtained was analyzed using descriptive and
inferential statistics with results presented in tables and figures. The result showed a
high aspiration for homeownership amongst respondents. The result also showed that
lesser cost implication of walling materials does not translate to acceptance and use.
Most importantly, the results showed high significant relationship between SES and
choice of walling material for affordable housing. The study recommends that
selection of walling should be responsive to the SES of households to make housing
affordable. Study is also useful for guiding formulation of affordable housing policy in
Nigeria that is responsive to the SES of households in the study area.
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RESOLVING THE NEGATIVE INFLUENCES OF CULTURAL VARIETY ON THE KNOWLEDGE SHARING BY USING KSCAMPAS IN THE CONSTRUCTION ORGANIZATION |
Author : Atif Musbah, Tri Joko Wahyu Adi, Nadjadji Anwar |
Abstract | Full Text |
Abstract :The regular information systems of the construction organization today
historically there was more failure than success. In the past decade, a lot of
researchers have addressed the cultural problems on regular Information system.
Since there is a lot of information system’s proposals adoption is failed due to the
misfit between the culture and information system. Furthermore several of studies
indicated the cultural variety influences negatively the knowledge sharing process by
using the regular Information system in the construction organizations. Therefore, in
this study “the knowledge sharing construction automatic mobile phone application
system” will be designed and developed. The knowledge sharing construction
automatic mobile phone application system will support and overcome the weakness
of the regular information systems in the organization under the bad influences of the
cultural variety. The knowledge sharing construction automatic mobile phone
application system will be able to overcome the communication problems, increase
the team member’s learning capacity, increase the team member’s trust in the stored
knowledge of the database of the organization, and increase the level of the innovation
in the organization by using the knowledge sharing construction automatic mobile
phone application system.
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INFLUENCE OF PERSONALITY CHARACTERISTICS ON ARCHITECTURE STUDENTS’ CREATIVITY: THE DIDACTIC ROLES OF EDUCATORS IN SELECTED NIGERIAN SCHOOLS |
Author : Aderonmu P.A, Chuku Ovunda, Fasae Oluwatosin and Ahmed Zainab |
Abstract | Full Text |
Abstract :Accounts of the influence of personality characteristics on architecture students’
creativity has largely been pedagogical in ‘modus operandi’. While only few records
have been documented on the didactic roles of studio Teachers in nurturing and
cultivating creativity among students. Creativity, as a phenomenon, has also been
engaged in diverse fields of human endeavours, namely, jurisdictions of arts,
philosophy, psychology, law, medical sciences, liberal arts and architecture and other
liberal arts. This study investigated the polar influences of extroversion-introversion
personality characteristics on students’ creativity in design studio course in order to
evaluate the Teachers’ didactic roles in schools. The research was carried out in a
survey of architecture students(n=225) in three selected schools of architecture in the
Southwest Nigeria. The findings suggested that in spite of polar differences of
extroverson and introversion, with the engagement of didactic tools by the design
studio Teachers and Instructors, there are lots of merger benefits and synergic
associations of attributes in the tutelage process of a well-seasoned professional
architects. From these findings, this study suggested that there is urgent need for
stakeholders, especially the studio Teachers, parents and guardians of architecture
school to understand typical personality attributes of students in order to orchestrate
the Gestalt applications in the desirable directions of career developments. This would
also assist the Architectural design studio Instructors and Teachers to emphasize the
pedagogical Tenets needed on the contents of the syllabi, the relevant indices in the
curricula grains and the specifics projects needed by individuals to study optimize the
latent potentials in the simile of personality attributes. This would lead to professional
competency in didactic handling of Architecture programmes with high-stake
achievements |
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THE AUTHENTICITY OF THE HOUSE YARD AS A MODEL FOR DEVELOPING OF SUSTAINABLE RESERVE FOOD GARDEN PROGRAM IN PACITAN REGENCY INDONESIA |
Author : Indartato, Abdul Hakim, Amin Setyo Leksono, Bagyo Yanuwiadi, Amin Setyo Leksono |
Abstract | Full Text |
Abstract :Indonesia is a country with high biodiversity and ethnicity. Every ethnic group has
local knowledge dealing with the environmental problems. One of the local knowledge
in managing environmental resources is the concept of a house yard. House yard can
be utilized as a sustainable reserve food garden (SRFG). One of the strategies to
optimize the yard area is a program of SRFG. The objective of this study is to analyze
the special characteristics of houses in Pacitan Regency as a model in preparing
sustainable reserve food garden. Data was obtained from field observations and indepth interviews with community or the house yard owners. The classification of yard
in Java including in Pacitan Regency can be divided into three, it is based on the
location of the house, namely the front yard (ngarepan omah), the backyard (buritan
omah) and the side yard of the house. The front yard was utilized to reduce the cost of
community consumption. The yard strata or the type of yards for SRFG are divided
into various types depending on the conditions of the yard. In general, private
property (house owners) and owned by offices or institutions and public facilities are
classified into eight chategories: very narrow yard (without a yard), narrow yard
(<120 m2
), medium yard (120-400 m2
), large yard (> 400 m2
), intensification of road
fences, yards intensification of village office, schools, and other public facilities,
village seed gardens and conservation area of local food crops for the future. This study suggest that preservation of the yard of food crops through the SRFG can
increase income which will ultimately improve peoples welfare. Fulfillment of food
from the use of the yard is considered ideal and sustainable |
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DIRECT ANALYSIS OF CRITICAL LATERAL LOAD IN A THICK RECTANGULAR PLATE USING REFINED PLATE THEORY |
Author : Onyeka, F.C |
Abstract | Full Text |
Abstract :A refined nonlinear shear deformation theory of thick rectangular plates is
presented using a modified mixed variational formulation. This Refined Plate theory
and direct variational method is built upon the classical plate theory. In this
displacement-based, refined shear deformation theory, general and direct variation
method is used to obtain the total potential energy of the plate by employing the static
elastic theory of plate to obtain the general governing differential equations and direct
governing differential equations with its associated boundary conditions respectively.
The shape function of fourth order for the plate under uniformly distributed load for
CCCS plate was formulated using the characteristic orthogonal polynomials (COP),
which is also known as product of orthogonal strips of the plate along the two axes.
The main objective of study is static bending analysis of a homogeneous and isotropic
thick elastic plate using a higher-order shear and normal deformable plate theory to
determine the actual maximum critical lateral load of the plate before deflection
reaches allowable specified maximum limit. This aims at creating enablement in
achieving the most possible safe, economical design and effective cost estimate in
engineering construction. |
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ANTIBIOTICS THERAPY FOR TYPHOID FEVER IN SECONDARY HOSPITAL |
Author : Mutiara Listya Siswanto, Didik Hasmono, Muhammad Noor Diansyah |
Abstract | Full Text |
Abstract :The world health organization (who) has included typhoid fever in the global
burden of disease project. Cases of typhoid fever in hospitals in indonesia shows a
number that tends to increase every year. The pattern of antibiotic treatment in
patients with typhoid fever in hospitals needs to be studied further because it has the
potential to cause antibiotic resistance and the presence of drug related problems that
affect patient management. The aim of this study is pattern of use of antibiotics in
typhoid fever patients undergoing inpatient care in hospital. This study is a descriptive
and retrospective study using medical record. Specified inclusion criteria are (1)
patients with typhoid fever with or without complications (2) undergoing
hospitalization for at least 3 days (3) receiving antibiotic therapy (4) complete
medical records. Sampling using the time limited sampling method. The total patients
who met the inclusion criteria were 176 patients. The most widely used antibiotics are
cephalosporin groups, especially ceftriaxone, which is 47.73% followed by quinolone
antibiotics, especially ciprofloxacin, which is 43.18%. In drug related problem (drp) it
was found that 26.70% of patients had actual drp and potential drp of 19.31%. In the
therapeutic response using antibiotics on average after 3 days of treatment, changes
in the value of leukocytes were found and the value of the patients body temperature
improved. Most antibiotic therapy obtained by typhoid fever patients who are
hospitalized is in accordance with the available guidelines. Antibiotic therapy
response showed good results after patients received treatment. |
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OPTIMIZATION COORDINATED PV, BATTERY, AND SUPERCAPACITOR USING DEA FOR A SOLAR VEHICLE |
Author : Dwi Ajiatmo, Imam Robandi |
Abstract | Full Text |
Abstract :This paper discusses the coordination of photovoltaics, batteries, and
supercapacitors. The Differential Evolution Algorithm (DEA) method is proposed to
improve system performance in minimizing output voltage errors. With the DEA
method, at the 42V reference voltage, the overshoot value is 42.36 V, the settling time
is 0.1361 seconds, and the final value is 42.01 V, and the reference voltage is 52V, the
overshoot value is 52.4V, the settling time is 0.234 and the final value is 52.01V
compared to conventional control when the reference voltage V is 42V, Overshoot is
42.98 V, the settling time is 0.2414 and the final value is 42, 02 V, when the reference
voltage V is 52V, overshoot is 53.74V, settling time is 0.284 and Final Value is 52.06. |
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MECHANICAL CHARACTERISTICS OF SELF-COMPACTING CONCRETE |
Author : Hajdar Sadiku and Lulëzim Bytyçi |
Abstract | Full Text |
Abstract :Self-compacted concrete is a material that recently has been widely used in
construction engineering structures and therefore research into its mechanical
characteristics is of particular importance as the materials used for its manufacture in
terms of quantity differ from composite materials of normal concrete. Based on this we
have realized practical proofs for the analysis of these characteristics, which have
been carried out according to the respective standards depending on the type of
evidence. In this paper, we will present the laboratory results for solidity in printing,
Solidity in curvature through cracking, solidity in curvature of curvature prism
specimens, concrete precision, velocity of sound penetration in concrete samples,
elastic modulus. In the wet concrete phase, self-compacted concrete has a certain
number of tests that are not performed on normal concrete, thus we will present
laboratory results for L-box, J-ring and V-funnel. |
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VALUE ENGINEERING IMPLEMENTATION ON FOUNDATION WORK HOSPITAL BUILDING |
Author : Pius Agung Wibowo, Budi Susetyo |
Abstract | Full Text |
Abstract :The study was conducted to identify factors to determine how far the influence of
the application of value engineering methods as an alternative to achieving the
effectiveness of the use of costs in the foundation work on the building of a hospital
building. In the research process with statistical analysis, standards will be achieved
based on secondary data analysis which is translated into research variables which
are formulated in the form of questions (questionnaires) that have been finalized first
through certain validations. Furthermore, from the research variables will be the
basis and reference for getting results from primary data (questionnaire) so that the
objectives of this study can be achieved. Data processing for the results of the
questionnaire survey was analyzed using Statistical Package for the Social Sciences
(SPSS) software. The results will be displayed in the form of validity and reliability
testing, frequency distribution analysis, descriptive analysis, correlation analysis, and
regression analysis.
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EFFECT OF SOAKING ON UNSATURATED GYPSEOUS SAND SOILS |
Author : Mustafa M. Abdalhusein, Ali Akhtarpour and Mohammed Sh. Mahmood |
Abstract | Full Text |
Abstract :This paper shows the different in the volumetric strains between the Oedometer
tests with different soaking durations and the unsaturated triaxial tests. The disturbed
samples were taken from Al-Najaf city in Iraq. All specimens have the same high
gypsum content of 29 %. For Oedometer tests, the specimens are tested in the different
soaking durations; the first is in natural moisture content then half hour, one week and
two weeks. While in triaxial tests, a wetting induce has been conductive to estimate the
volumetric strains under two stress levels (2.5 and 5 kg/????2
) with presence of matric
suction in four levels; initial matric suction (?o), 0.6 ?o, 0.3 ?o and zero ?. The results
from unsaturated triaxial tests indicate that the volumetric strains are increased as
matric suction decreased and the trend of stress-strain curve became steep. While from
Oedometer tests, when the specimen is soaked in natural and for a half hour, the
volumetric strains are not significantly changed and close to the high matric suction.
When the soaking time is increased to a one week, there is relatively increase in
volumetric strains. But after two weeks soaking in Oedometer cell, the volumetric
strains are very clear in increasing and close to the volumetric strains from unsaturated
tests in low matric suction.
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ANALYSIS OF BUCKLING AND POST BUCKLING OF PILES FULLY EMBEDDED IN GROUND |
Author : Vlora Shatri and Laur Haxhiu |
Abstract | Full Text |
Abstract :This paper work aims to present analytical and numerical analysis, linear and
nonlinear buckling and post buckling behaviour of piles fully embedded in ground. In
the first step, we have used the Galerkin’s Method for linear buckling and nonlinear
post buckling analysis of piles with linear-elastic material behaviour. Then is
continued with numerical buckling and post buckling analysis of the piles with
nonlinear elasto-plastic material behaviour. For this, the Riks Method is used.
Numerical analysis was performed in software Abaqus 6.13. This paper finally shows
that the post buckling behaviour of the pile with ideal load stiffness increase after
bifurcation point |
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BIM REVIEW IN AEC INDUSTRY AND LESSONS FOR SUB-SAHARAN AFRICA: CASE OF CAMEROON |
Author : R. Okpwe Mbarga and Mamba Mpele |
Abstract | Full Text |
Abstract :All round the world, Building Information Modeling (BIM) is transforming the
architecture, engineering and construction (AEC) industry. Its various contributions
have pushed many countries to adopt it for the realization of construction projects. In
this context, this article presents a BIM review in AEC industry in order to draw
lessons for Sub-Saharan Africa through the case of Cameroon. It reveals that with a
BIM adoption level more than 90% in many countries, North America, Oceania and
Europe are very advanced. They are followed by Asia and South America. In SubSaharan Africa, BIM is beginning to be known by many engineers but its potential still
unexploited for the realization of construction projects. To change this situation in the
sub-continent, local institutions dedicated to training and research in civil
engineering should be more engaged in order to effectively support all stakeholders in
the understanding, spreading and implementation of BIM |
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INVESTIGATING THE BEST MANNER FOR TRIP DISTRIBUTION IN UNPLANNED CITIES |
Author : Metwally G. M. Altaher, Ahmed Mohamady Abdallah, Mohamed Abdelghany Elsayed, Abd El-Rahman Baz Abd El-Samii Mahfouz |
Abstract | Full Text |
Abstract :Trip Distribution is a step of transportation studies necessary for solving traffic
problems in unplanned Cities. In general, trips-production and attraction manner is
usually used for trip distribution using gravity model. This study aims to investigate
the best manner for trip distribution for Zagazig city as an example of unplanned
cities. To achieve the study objective, comprehensive experimental program was
designed and implemented starting with collecting trip movement data of Zagazig.
This was followed by trip times frequencies analysis resulting to define the more
suitable friction factor description. A new suggested manner to make trip distribution
was investigated in addition to the traditional manner. That is trips-origin and
destination manner. It is concluded that origin-destination matrix can be directly
obtained with higher reliability than P-A matrix using adjusted gravity model. |
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THE RADICAL RELIGIOUS EXTREMISM OFFENDER’S FAMILY REHABILITATION: A PROPOSAL OF DESIGNING THE INFORMATION TECHNOLOGY PORTAL |
Author : Fadzli Adam, Fakhratu Naimah Muhad, Siti Rokiah Ab Rahman, Najihah Abd Wahid, Daud Ismail, Muhammad Fakhru Naim Muhad, Asyraf Hj Abd Rahman, Firdaus Khairi Abdul Kadir |
Abstract | Full Text |
Abstract :The rehabilitation approach is endorsed by the experts for its efficiency and
practicality in reintegrating the radical religious extremism offenders. Other than the
provided syllabus for the offenders, the rehabilitation for the family members is
needed as well. However, the restriction to access the families of the offenders are
obstructing the rehabilitation processes from their side. Hence, this research is
proposing a special informative online portal. The advancement of the information
technology (IT) application is considered to be as the easiest medium to bridge
between them. This research is a qualitative study and mainly benefit from the
previous research papers. This article is considered to be the first milestone in
preparing the extensive and complete rehabilitation of the families of the RRE
offenders cum spreading the right information to the global masses.
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THE EFFECT OF SAND FILTER AND WETLAND RESIDENCE TIME ON THE DECREASE OF BLACKWATER PARAMETERS |
Author : Emma Yuliani and Lies Kurniawati Wulandari |
Abstract | Full Text |
Abstract :The effectivity of blackwater treatment is influenced by the methods and processes
applied. Due to its high pollutant content, blackwater treatment requires a series of
processes and a longer processing time. One aspect that has been a problem so far is
the cost, hence the technology must be developed in order to find the applicable and
efficient method that can be applied by the community. Sand is a natural material that
can be used as a filter, along with gravel and charcoal. In addition to the low price,
these three materials are also easy to obtain. The use of filter materials can be refined
through the wetland system by utilizing aquatic plant, such as Vetiver grass (Vetiveria
zizanioides). In other words, blackwater is processed physically and biochemically.
Based on the findings, the combination of stratified filtration method and wetland
system can reduce the levels of TSS, TDS, BOD, COD parameters, and stabilize the
pH. The effect of the sand thickness of the filter and the residence time of the
blackwater in wetland tube is an interesting material to discuss.
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STRUCTURAL PROPERTIES OF HA:AL2O3:SIO2 GLASS CERAMICS SYSTEMS FOR BIO APPLICATIONS |
Author : Mohammed Falih Majid, Abbas Fadhel Essa and Shatha Shammon Batros |
Abstract | Full Text |
Abstract :In this research the solid state technique was used to syntheses five systems of
glass-ceramic by combining of Hydroxyapatite, Alumina and Silica in different molar
percent. The X-ray diffraction analysis for all systems before and after sintering was
present and discussed in this research, the morphology of those systems also
investigated by scanning electron microscope (SEM), the composition of each system
was analyzed by the energy dispersive x-ray diffraction (EDS). Exploitation of the
Fourier Transform Infrared (FTIR) spectra to identify the chemical bonds as well as
functional groups in the compound for all systems. The results present new phases
such as Mullite (Al6Si2O13) and Anorthite (CaAl2Si2O8) that mean the components of
these system was interacted very well. The in-vitro study also discussed by immersing
the samples within the simulated body fluid (SBF). The XRD results proved the
consistence of the apatite layer on the samples after immersion it in SBF. |
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INDOOR TEMPERATURE PREDICTION OF THE HOUSES WITH EXPOSED STONES IN TROPICAL MOUNTAIN REGIONS DURING FOUR PERIODS OF DIFFERENT SEASONS |
Author : Hermawan, Eddy Prianto, Erni Setyowati |
Abstract | Full Text |
Abstract :The exposed stone-walled houses are included asthe vernacular house in the
mountainous regions. These local houses were built within a fairly long process of
adaptation, and this kind of houses isconsidered to be able to adapt to microclimate
conditions. One of micro climatevariables is air temperature, andhow these houses
adapt to the conditions can be analyzed by comparing their indoor temperature and
their outdoor temperature. The purpose of this study is to analyze the temperature
differences of both temperatures. The method employed was the quantitative method
by measuring both indoor and outdoor temperatures. Every season, both rainy and
dry seasons, data of temperatures were taken at early period and the mid period. The
graphs were used to see how different the outdoor and the indoor temperatures In
addition, statistical tests were carried out to test the effect of outdoor temperature on
the indoor temperature. The resultsfound that the outdoor temperature had an
influence on the indoor space. The equation produced from the test results is Ta_in =
8.519+ 0.597 * Ta_out for the beginning of the rainy season, Ta_in = 9,173 + 0.568 *
Ta_out for the middle of the rainy season, Ta_in = 5,570 + 0.736 * Ta_out for the
beginning of the dry season and Ta_in = 7,364 + 0.685 * Ta_out for the middle of the
dry season. These equationsare expected to be able to predict the types of houses in all
locations.
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THE ROLE OF TRI HITA KARANA CULTURE IN MODERATING THE EFFECT OF GCG, RISK APPETITE AND WORK MOTIVATION ON FINANCIAL PERFORMANCE OF LPD IN THE DENPASAR CITY – BALI |
Author : Gregorius Paulus Tahu, I Wayan Widnyana, Sapta Rini Widyawati |
Abstract | Full Text |
Abstract :The purpose of this research are: To know the effect of GCG, risk appetite, work
motivation on the financial performance; To know the role of THK in moderating the
effect of GCG, risk appetite, work motivation on the LPD’s financial performance.
The analysis using moderated regression analysis (MRA). Results of analysis: appetite
risk and work motivation have a positive significant effect on Financial performance
of LPD, however GCG does not have a significant; The THK is able to act as a
moderating variable which means that it can strengthen the influence of GCG, risk
appetite, work motivation on LPD’s financial performance |
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THE EFFECT OF CORPORATE FINANCIAL ARCHITECTURE AND VALUE ADDED HUMAN CAPITAL ON FIRM VALUE WITH INFORMATION TECHNOLOGY AS MODERATING THE TOURISM SERVICES IN INDONESIA |
Author : I Wayan Widnyana, Dominicus Djoko B.S., I Nengah Sudja, I Wayan Suarjana, Sapta Rini Widyawati, Gregorius Paulus Tahu |
Abstract | Full Text |
Abstract :The purpose of this research to analyze and explain the effect of dimensions of
corporate financial architecture variables (consisting of ownership structure, capital
structure and corporate governance), value added human capital variable on firm
value, and also add information technology variables as moderating. This research
was conducted at tourism companies including restaurants and hotels listed on the
Indonesia Stock Exchange (IDX) in the 2018 period using secondary data sources,
consisting of 32 companies. The analytical method on hypothesis testing uses a
regression test with the MRA moderating variable in SPSS. The results of the research
show that ownership structure, corporate governance and value added human capital
have a positive and significant effect on firm value; capital structure does not affect
firm value; information technology that is significant in moderating the effect of
ownership structure, capital structure and value added human capital on the firm
value, but not for the effect of corporate governance on the firm value.
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EFFECT OF SODIUM SILICATE ON HARDENING PROPERTY OF CONCRETE |
Author : J. Sivasubramanian and Y. Gino |
Abstract | Full Text |
Abstract :The study involves the effect of addition of sodium silicate at various proportions
and the consequent investigation in terms of setting time and compressive strength.
The literature study depicts that there is a considerable amount of decrease in
strength is observed when sodium silicate is added to concrete. In order to counteract
the decrease in strength, silica fume is added. The addition of silica fume is restricted
to 10% in Indian Standard code and hence the proportion of silica fume to be added is
kept as 10% in order to increase the reduced strength and to nullify the effect of
strength reduced due to the addition of sodium silicate. The setting time and
compressive strength study was done and it was found that 37.5% of sodium silicate
addition as a replacement of cement gives better strength properties. |
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OPTIMIZATION OF WATER SUPPLY SYSTEMS ON TUMPANG IRRIGATION AREA WITH LINEAR PROGRAM |
Author : Bambang Suprapto, Eko Noerhayati, Bambang Dwisulo, Tri Budi Prayogo |
Abstract | Full Text |
Abstract :The object area in this research is the irrigation area of Tumpang Province East
Java Indonesia. This irrigation area irrigates a rice field area of 296 Ha and has a
limited water discharge. The pattern of this irrigation area is not yet adjusted to the
available discharge. Therefore, with the available discharge should be optimized
planting pattern for maximum yield. The method used in the research is linear
program mathematics is by determining the decision variables on the distribution of
water to the fields, then formed the purpose function. The objective function is then
identified constraints faced and expressed functionally, in the form of equations or
inequalities. The result of the study with the solver program shows that the maximum
profit of the harvest from the program solver optimization in the area of the
Overlapping Irrigation is IDR. 8.134.820.000, - per year |
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RECONSIDERATION OF THE LOWER CAMBRIAN EXTENSION IN THE ANTI-ATLAS BELT, MOROCCO |
Author : Mohamed Yazidi, Khadija Kaid Rassou, Bouchra Razoki, Fouad Benziane, Abdelaziz Yazidi, Saïd Chakiri, Zohra Bejjaji, Mohamed Allouza, Hassan El Hadi, Said Ettazarini |
Abstract | Full Text |
Abstract :The Anti-Atlas belt, which is located in the western part of the West African
Craton, is the result of Eburnean, Pan African and Variscan successive orogenies,
during the Paleoproterozoic, the Neoproterozoic and the Paleozoic. The subsequent
crustal accretions enlarged the craton, forming a series of belts in form of crowns.
In the Anti-Atlas, the Cambrian can be defined by paleontological or radiometric
dating. In the first case, the definition of its chronological lower limit can fluctuate
according to new results. In the second case, the intercalated volcanic levels are
younger and younger. In this study, we have grouped Adoudounian and Taliwinian in
a large lower Cambrian and not in any terminal Neoproterozoic The volcano-sedimentary and sedimentary formations of the Adoudounian and the
Taliwinian cover the Precambrian formations of the different domes |
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FIRM PERFORMANCE, FINANCIAL INNOVATION IN MUTUAL FUNDS INDUSTRY |
Author : Dewi Tamara, Dezie L. Warganegara, Toto Rusmanto, Adler Haymans Manurung |
Abstract | Full Text |
Abstract :This study aims to identify determinants of financial innovation in the financial
services industry. The determinant factors studied are organizational innovation, peer,
skill, company size and information technology. The relationship of organizational
innovation, peer, skill, and information technology to financial innovation is an
important contribution of this dissertation. This study uses seven variable constructs
consisting of organizational innovation, peer, skill, company size, information
technology, financial innovation and company performance. The seven constructs of
this variable are measured by 68 indicators or measured variables using
questionnaires and 1-5 Likert scales. The questionnaire was distributed to all
management asset companies listed on the OJK and IDX in August 2016-August 2017.
The results of this study indicate that the construct of organizational innovation, peer,
skill, company size, information technology is valid as a variable of financial
innovation. Financial innovation as a company performance variable is also valid.
The relationship of organizational innovation is positive and significant towards
financial innovation. The influence of firm size on financial innovation is positive but
insignificant. The influence of peers on financial innovation is positive but
insignificant. The influence of information technology on financial innovation is
positive and significant, while the influence of skills on financial innovation is positive
and significant. The effect of financial innovation on company performance is positive
and significant. Organizational innovation, skills, peer and information technology
affect the companys performance indirectly.
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AN INTRODUCTION OF TROPICAL PEAT AND ITS HISTORY OF SHEAR STRENGTH IN MALAYSIA |
Author : Norhaliza Wahab, Mohd Khaidir Abu Talib, Munzilah Md Rohani |
Abstract | Full Text |
Abstract :The distribution of peat soil in Malaysia is widely known since Malaysia is located
in the tropical region and receives the distribution of rain frequently in years. This
phenomenon creates to the formation of swamp and force to the formation of peat
swamp by natural process coincidently contributed some problem to the geotechnical
engineer as peat known as very low shear strength compared to the other types of soil.
The shear strength of peat is different based on their types of peat which also known
as level of degree of decomposition. The main purpose of this paper was to gives an
overview of the peat soil characteristic and its shear strength in Malaysia. The
distribution, formation and the shear strength information about peat soil in Malaysia
were elaborated in this paper by referring to the previous researchers in the form of
illustration, picture, graph and table data. As the outcome, the distribution of peatland
in Malaysia is covering Peninsular, Sabah and Sarawak region wherein for
peninsular region Selangor record the highest distribution meanwhile Sarawak
recorded the highest distribution compared to Sabah. The degree of decomposition
peat is affecting the level of peat strength due to peat strength is dependent on the
fiber reinforcement and water content. Conclusively, the main factors identified to
control the shear strength value of peat soil were soil composition (basic soil
material), structure, initial state and loading condition |
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UTILIZATION OF SYNTHETIC REINFORCED FIBER IN ASPHALT CONCRETE – A REVIEW |
Author : N. F. A. A. Musa, M. Y. Aman, Z. Shahadan, M. N. M. Taher, Z. Noranai |
Abstract | Full Text |
Abstract :Asphalt concrete pavement which consists of aggregates and asphalt binder is
widely employed in pavement construction worldwide. These materials have
commonly been used for constructing the first layer of flexible road pavements.
However, flexible pavements have little or even insignificant flexural strength, and
their structural actions is fairly flexible under high traffic volume and load which may
contribute to the tensile stresses and strain at the bottom of the bituminous layers as a
result of continues flexing from to the load acting on the pavement. The strain
magnitude is depends on the overall stiffness of the pavement. In recent years, a
dramatic increase in traffic volume and load have contributed to road congestion and
subsequently effect the pavement performance. As the world continues to urbanize, the
construction of transportation roadways constantly requires quality pavement,
particularly on strength, durability and driving comfort. Due to these demands,
transportation experts and engineers are focusing on improving the performance and
life span of asphalt concrete pavements. For the last few decades, highway materials
researchers have tried different methods and additives in improving asphalt
pavements performance and one of the most effective way is to reinforce asphalt
mixtures by incorporating fibers. Different types of fibers are known to be used in this
application and these include synthetic and natural fibers. The main function of fibers incorporated into asphalt mixture is to enhance the mechanical performance namely
tensile strength, rutting resistance, and fatigue cracking. This paper reviewed the
synthetic fiber modified asphalt concrete particularly discuss fundamental problems
incorporating fiber in asphalt concrete mixture, mixing process and effects of different
fibers on asphalt concrete. It is found that synthetic fiber modified asphalt concrete
has significantly improved in performance compared to conventional asphalt
concrete. |
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UTILIZATION OF THE RESILIENT MODULUS TEST TO PREDICT STRIPPING OF ASPHALT CONCRETE MIXTURE |
Author : Taisir Khedaywi and Nabil Al Kofahi |
Abstract | Full Text |
Abstract :Stripping is the separation of the asphalt cement film from the aggregate surface
due to the action of moisture. In this study, limestone, uncrushed valley gravel, and
basalt aggregates, asphalt cement (60/70), and anti-stripping additives: hydrated lime
and a liquid additive polyamine were used. Marshall specimens with 6-8% air voids
were prepared and divided into three groups; did not contain additives, contained lime
dosages of (0.5, 1, 1.5, and 2.0%) by weight of aggregate, and the third contained
polyamine dosages of (0.25, 0.5, 0.75, and 1.0%) by weight of asphalt cement. Two
types of saturation conditioning used: a medium degree (30% to 40%), and a high
degree (60%-80%). A non-destructive test evaluates the stripping potential. The
resilient modulus test was run using the Universal Testing Machine. Test results showed
that limestone aggregate is superior to valley gravel and basalt. Wearing courses
showed better stripping resistance than binder courses mixtures. In general, it found
that 1.5 to 2.0% dosage of lime and 0.75 to 1% dosage of polyamine needed to restore
the resilient modulus to its original value. It concluded that the most significant
variable governs the stripping characteristics is the aggregate type. Anti-stripping
agents were highly effective in cases where stripping potential is high. Resilience
Modulus test (ASTM D 4867) could be used reliably to determine the optimum dosage
of anti-stripping additives |
|
STRESS-STRAIN BEHAVIOR OF SOFT CLAY REINFORCED WITH COREX SLAG AND TERRAZYME |
Author : V.M. Vasiya and Dr. C.H. Solanki |
Abstract | Full Text |
Abstract :Corex slag is an industrial by-product having sand size particle, which can be
used for the improvement of soft clay. Due to the high compressibility of soft clay
corex slag penetrates inside the clay. Terrazyme is a liquid enzyme extracted from
vegetation, and it does have a cementitious property with cohesive soil. In this paper,
an attempt is made for the appropriate proportion of corex slag and terrazyme treated
soil for the highest strength of the blend. Experimental results show that an increase
in terrazyme reduces OMC and increases MDD. 50% corex slag, 50% clay and 2%
terrazyme by total weight of dry material give highest UCS value at 21 days of curing |
|
DESIGN AND PERFORMANCE ANALYSIS OF A MODEL PICO SIZE PELTON WHEEL TURBINE |
Author : Felix A. Ishola, Oluwaseun O. Kilanko, Anthony O. Inegbenebor, Timilehin F. Sanni, Adebiyi A. Adelakun and Dunmininu D. Adegoke |
Abstract | Full Text |
Abstract :A hydropower generation is an ancient but evergreen energy source that utilises
mechanical energy of water strolling down from an elevated head to drive an electric
generator thus producing electricity. Small Hydropower (SMH) turbines are rotated by
a relatively low-pressure head and usually generates low energy output usually
referred to as mini, micro or Pico energy range. Pelton Turbines are generally found
to be amongst the most suitable for a low flow power generation. This study focuses on
the design of a model Pico size Pelton Wheel modified to use the velocity of water
harvested from rooftops during rainfall for the purpose of supplementing energy
supply. By the design, the rainwater from the building rooflines are collected and
passed through the downspouts into an elevated tank and then the height of the bottom
of the tank gives the required head (pressure) to spin the microturbine and then
generates a Pico level energy. The Pico size hydropower system directly connected to
a small, variable speed, an electric generator which is capable of supplying the power
needed for some minimal but very essential functions like charging handsets, mini
gadgets and low energy lighting purposes. Specific design calculations, as well as
analysis of the model Pico size energy system, was performed to ascertain the feasibility
of the design meeting some specified energy needs, thus reducing energy poverty. |
|
RESILIENT MODULUS OF STABILIZED SUBGRADE FOR FLEXIBLE PAVEMENT DESIGN |
Author : Thillai Nayagee Arumugam, Mohamad Yusri Aman, Ratnasamy Muniandy |
Abstract | Full Text |
Abstract :This paper reports the resilient modulus of stabilized subgrade soil for flexible
pavement design using chemical stabilizer; Sodium Silicate (SiO2). SiO2 is a water
based soil stabilizer which is currently being patented on application by Probase
Manufacturing Sdn.Bhd. in stabilizing subgrade soil for low volume road
construction. The resilient modulus of the stabilized subgrade soil; with particular
variations values of additive content, dry density, moisture content and curing time
were investigated. Repeated Triaxial load test was conducted on the stabilized
subgrade soil, and the specimens were prepared with 100%, 95% and 90% of dry
density, at optimum moisture content (WOpt), 3% dry of optimum (WOpt-3) and 3% wet
of optimum (WOpt+3), and the amount of stabilizer used were 4%, 8% and 12% from
dry density of the soil. It had been found that the density affects the resilient modulus
of fine grained soil materials; however the magnitude of this effect is smaller
compared to the effect of water (moisture). The addition of liquid SiO2 stabilizer
improves the stiffness (resilient modulus) of the soil and consequently, the optimum
concentration of the stabilizer is found to be 4% at 95% density with WOpt-3 for
subgrade soil stabilization from KENLAYER program. The analysis was supported by
Asphalt Institute (AI) Models which was used to predict the number of load cycle that
lead to failure.
|
|
GEOPHYSICAL INVESTIGATION OF GROUNDWATER POTENTIAL OF VIEW CAMPUS, VISAKHAPATNAM, ANDHRA PRADESH |
Author : Dr. G. Venkata Rao, Dr. Ch. Kannam Naidu, Dr Ch. Vasudeva Rao |
Abstract | Full Text |
Abstract :Geophysical survey involving electrical resistivity methods has been carried out at
Vignan’s Institute of Engineering for Women. The investigation is carried out at two
points in the study area. The schlumberger configuration was used for the data
acquisition. The half currents electrode (2) used range from 1 to 100m. The depth
sounding interpretation results were used to generate geo-electric sections from which
the aquifer was delineated. The geo-electric section drawn from the results of the
interpretation reveal four subsurface layer which comprises of the topsoil, weathered
rock, fractured rock, hard rock. The fractured layers constituted in all the locations, it
refers aquifer zone is available entire study area. Hence, from this investigation it is
recommended that boreholes can be sited in high conductivity zones in Vertical
Electrical Sounding (VES) 1 & 2 as they contain probable aquifers. The depth of any
borehole should be located between 7.4m and 21.7m to take advantage of the
basement fractures. |
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VALIDITY AND RELIABILITY OF FACTORS OF VOS IN ROADWAY CONSTRUCTION PROJECTS DURING THE DESIGN PLANNING STAGE, CONSTRUCTION STAGE USING RASCH MEASUREMENT MODEL |
Author : Mustafa R R Ghenbasha, Wan Mohd Sabki Wan Omar, Aafizah Ayoub |
Abstract | Full Text |
Abstract :The current study is concerned to produce empirical evidence of the reliability and
validity of items using a survey questionnaire for factors of variation orders (VOs) in
roadway construction projects, analyzed using Rasch analysis Model via Winstep
software 3.72.3 104 questionnaire was distributed between professionals from
government organizations, construction firms, and consulting firms which deals with
JKR roadway projects in the north region of Malaysia (Penang State). The findings
indicated that five Likert scales for the two constructs of the planning and design stage
and construction stage were exceeded the recommended minimum number of
responses of 20 The constructs validity was determined by PT-measure correlation
value (PMC) for 11 items range from 0.24 to 0.54 for the construct of the design and
planning phase, except one item was 0.17 While the construction phase construct, PTmeasure correlation value (PMC) for 13 items range from 0.19 to 0.55, except three
items were 0.11; 0.15; 0.17, which means below 0.19. In unidimensional measure, for
the construct of the planning and design stage, raw variance explained was 53.6%
with the unexplained variance in the first factor was 9.0%. Meanwhile, for the
construction stage construct, raw variance explained was 57.5% with the unexplained
variance in the first factor was at 8.7%. The results of the summary statistic indicate
that items reliability for both constructs were 0.99. Otherwise, the items separation
index of planning and design stage was 8 (8.71). Meanwhile, for the construction
stage, it was 9 (9.93).
|
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BUILDING ELEMENT MATERIAL SELECTION MODEL USING WEIGHTED MATRIX |
Author : Jongsik Lee |
Abstract | Full Text |
Abstract :The space of the building consists of various parts such as floor and wall.
In addition, the elements that make up the building space are also made of various
materials. Building materials are being actively developed as the required functions
and performance of buildings are diversified. In recent construction projects, clients
and users are presenting specific and diverse requirements. Thus, the importance of
decision-making for the selection of building element design made of building
materials is emphasized. In practice, however, the function and performance required
for the building are not fully taken into consideration when selecting the building
element design. There is also lack of objective criteria and data for selecting of major
building element design. Previous studies have been conducted using fuzzy theory,
analytical hierarchy process and case-based reasoning to select major building
element design. These previous studies were conducted on the selection of specific
building element design such as floor and wall. In practice, however, it is difficult to
use each of the selection models developed through previous studies when selecting
the major building element designs. In order to solve these problems, it is necessary to
develop a method that can be used in common when selecting the major building
element designs. This study presents general selection method of building element
design which is easy to use in practice. In order to verify the consistency of the
selection method of building element design proposed in this study, it was applied to
the floor of residential building. |
|
PARTICULATE MATTER (PM10) ANALYSIS DURING PRE-AND POST-FLOOD EVENT |
Author : Samsuri Abdullah, Daryl Jia Jun Lee, Si Yuen Fong and Marzuki Ismail |
Abstract | Full Text |
Abstract :This study utilized the receptor model using high volume sampler filter paper
situated in Pengkalan Chepa, Kelantan before and after the flood event to determine
the source of the dust sources. Analysis of Variance (ANOVA) was performed and it
was concluded that there exist statistically significant different (P<0.05) for
particulate matter (PM10) concentration before and after the flood event at the study
area. Principal Component Analysis (PCA) revealed that there are three Principle
Components (PCs) associated with four main chemical profile sources; soil crustal,
vehicle exhaust, marine aerosol and secondary aerosol. PC-1 presented high factor
loading for Na+
, Ca2+, K
+
, NO3-
, SO4
2-
, that accounted for 42% of the total particulate
originated from soil and vehicle exhaust. 18.4% for PC-2 representing marine
aerosol, characterized by high loading of marine composition such as Na+
, Cl-
, and
Mg2+. NH4
+
presents strong correlation with PC-3 indicating secondary aerosol
sources (10.3%) in the atmosphere. Comprehensive land clearing management
particularly in the highland area of Kelantan by the state government and systematic
coordination of automobile movement for flood relief missions should be enforced to
reduce the airborne particulate where it is widely known that high level of suspended
particulate can give adverse effects to human health.
|
|
DESIGN OF AN IMPERVIOUS SEAL FOR THE TAILINGS OF COPPER ORE BENEFICIATION WASTE |
Author : Babenko D.A., Pashkevich M.A., Alekseenko A.V. |
Abstract | Full Text |
Abstract :The paper justifies the waterproofing technology for the waste storage
conservation. The studied residuals of copper ore enrichment can be insulated with a
mixture of processed secondary polymers. The existing methods of waste storage
waterproofing are reviewed. The paper presents the results of full-scale monitoring of
the quality of surface and groundwater affected by the tailings of the Gaisky Mining
and Processing Plant. The determined chemical composition of enrichment waste is
described. Physical and mechanical properties of recycled polymers are investigated.
The proposed technology of covering with a waterproofing coating can be applied to
preserve technogenic deposits aiming at their future mining, as well as to ensure the
environmental safety of newly designed facilities. The implementation of this
technique will improve the local environmental situation and reduce migration of
hazardous substances as a result of seepage, thus reducing the pollution of natural
waters. |
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EVALUATION OF SOLID WASTE MANAGEMENT REGULATION IN MINULYO TRADITIONAL MARKET, PACITAN REGENCY, INDONESIA |
Author : Heru Sukresno, Abdul Hakim, Wike, Aminudin Afandhi |
Abstract | Full Text |
Abstract :The traditional market is identical as a place of sale and purchase that become
source of waste pollution. Given the importance of the role and existence of
traditional markets, it is necessary to create a traditional market environment that is
environmentally friendly, comfortable, clean and provide user satisfactions both of the
traders and buyers. The purpose of this study was to evaluate the implementation of
traditional market policies in solid waste management in the Minulyo Traditional
Market (MTM), Pacitan Regency, Indonesia. The total waste generated from buying
and selling activities in MTM reaches 6.5 m3
or 600 kg/day consisting of organic
waste of 5.25 m3
or 550 kg. Waste management in Pacitan Regency has been
regulated by Pacitan Regency Government through regulation Number 1 of year 2011
concerning waste management. The distribution of waste in the MTM is by placing
various small solid waste places in each strategic market place. Then periodically the
solid waste from the place is taken to a temporary treatment station (TTS) beside the
market. In TTS, solid waste was sorted by category. The organic solid waste was
processed into compost. The results of this compost were distributed in the city park in
Pacitan Regency to fertilize the plants. Solid waste that has economic properties such
as bottles of mineral water, cardboard and certain types of plastic were collected for
sale. While, solid waste residue was transferred to the final treatment station (FTS). |
|
HUMAN CHARACTERISTICS IN RELIGIOUS SCRIPTURE: AN ANALYTICAL STUDY ON SENSORY HEARING AND SEEING |
Author : Abdoul Karim Toure, Robiatul Adawiyah Mohd @ Amat, Ahmad Kamel Mohamed, Abd Muhaimin Bin Ahmad, Mesbahul Hoque, Adnan Bin Mohamed Yusoff |
Abstract | Full Text |
Abstract :Human beings with power of senses (?awas) for the purpose of feeling through
seeing, touching, smelling, hearing and tasting with the aids of major organs of man,
ranging from eye, hand, nose, ear and tongue or mouth. It is with this power of sense
that human beings are raised in status and position above all other animals..
However, Qur’an addresses its significance in relation to human beings and building
of their characters. Suratul-Baqarah is one of the chapters of the Qur’an that
discusses that. Out of these senses; hearings and sights or visual and audio are very
significant that are worthy of study in this paper. It suggests that, apart from old age
that can cause damage to the brain, wrong characters to include rebellion to
instructions of Allah usually lead to its dysfunction. According to the SuratulBaqarah, the combination of the two sensitive organs of hearing and seeing helps
greatly in grasp knowledge and characters building. Conclusively, Suratul-Baqarah
plays substantive role in building human characters. Characters like sincerity,
uprightness, trust, righteousness etc. |
|
QUALITY ASSESSMENT OF BUSINESS PROCESS MODELS: CASE OF ACCREDITATION PROCESS IN HIGHER EDUCATION |
Author : Leila Jamel Menzli, Sarra Ayouni, Muna Elsadig |
Abstract | Full Text |
Abstract :Business process models represent a blueprint for all kinds of stakeholders in the
enterprise environment. In fact, they are subject of many interpretations according to
the purposes, which they serve, i.e. understanding how work is done for business
analysts, designing to-be systems for software developers, implementing and mining
for process managers, etc. Therefore, business process models have to be of high
quality in order to reflect the convenient information for all the organization’s
stakeholders. Assessing the pragmatic quality of such models by modelers helps to
reduce the misunderstood risk. In this paper, we present an overview of the quality
metrics used to evaluate the quality of business process models. This work focuses on
accreditation processes in higher education modeled with Business Process Modelling
Notation (BPMN), which complexities are evaluated by using a set of selected quality
metrics |
|
COMPARATIVE EVALUATION OF STEEL MESH REINFORCED CONCRETE WITH COPPER SLAG AS VALUE ADDED MATERIAL |
Author : S Naveen Kumar, Dr. T.M. Prakash, Priyanka H |
Abstract | Full Text |
Abstract :Concrete is the most widely used construction material in modern construction
practice due to its relatively low tensile resistance, concrete tends to experience
tensile failure and cracking under external loads. To enhance the tensile performance
of concrete material possible solution is including steel mesh reinforcement in
concrete along with partial replacement of M-sand by Copper slag. The fresh
properties of concrete mixes were studied by conducting slump cone test. The
hardened properties such as compressive, tensile and flexural strength were carried
out for 3,7,28 days. Both flexural strength and tensile strength was in increased for
placing 2- layer mesh in concrete. Compressive, tensile and tensile strength of
concrete mix is increased with increase in percentage of replacement of copper slag.
Also, strength of steel mesh reinforced concrete with different percentage of copper
slag was determined. It was reported that compressive strength and tensile strength
was increased for 20% replacement of copper slag and flexural strength was
increased for 30% replacement of copper slag |
|
SIMULATION MODEL FRAMEWORK FOR HOSPITAL EMERGENCY DEPARTMENT PATIENT FLOW |
Author : Ireen Munira Ibrahim, Choong-Yeun Liong, Ahmad Farid Najmuddin, Siti Rozanae Ismail, Siti Khatijah Nor Abdul Rahim |
Abstract | Full Text |
Abstract :A hospital’s emergency department (ED) is responsible to treat patients in an
immediate and fastest response as possible. However, the ED management faces
greater challenge with patients overcrowd caused by long waiting time for each
patient to receive treatment and eventually increased each patient’s length of stay in
the ED area. Any wrong decision made to overcome this problem may lead to a more
serious problem in the future. This study presents a proposed simulation model
framework to analyse the actual operation in an ED of a public hospital in Malaysia.
The model is able to help the ED management to better understand daily operations of
the department and how it affected by the level of resource capacity |
|
ANALYSIS OF THE SEAWATER REVERSE OSMOSIS PERFORMANCE BY THE DESALINATION PLANT USED FOR THE PRODUCTION OF DRINKING WATERS IN LAAYOUNE -SOUTH OF MOROCCO |
Author : Ifakkou Elismaili, Mohamed Najy, Saidi Youssef, Aissati Touria, Khadija El Kharrim, Ilias Kacimi, Driss Belghyti |
Abstract | Full Text |
Abstract :This article concerns the evaluation of the performance of seawater reverse
osmosis desalination units at the Laayoune station. The use of water for food purposes
requires excellent physicochemical quality. To contribute to the control of water quality. Water treated by reverse osmosis is aggressive and demineralize cannot be
used directly as a source of drinking water.
The objective of this work is to study the physicochemical analyzes of the raw
water (Atlantic Seawater) and treated water (produced water) of the Laayoune
seawater desalination plant (SDL) located in the south of Morocco. For this, we have
followed several qualitative parameters such as pH, Conductivity, Chloride, Sulfates,
Alkalinity, Calcium, Turbidity.
The water produced by the desalment station at Laayoune is in accordance with
Moroccan and WHO standards and is therefore suitable for human nutrition. |
|
ELECTRONIC DIVORCE: A STUDY IN JORDAN LAW |
Author : Mohammed Ibrahim Abu El-Haija |
Abstract | Full Text |
Abstract :The study took place to assess the legal position on online divorce in Jordan as well
as the country’s E-transaction and Personal Status Laws. That spread of the Internet
and different kinds of services made possible by it has enabled users to take different
legal actions, including divorce, through the Internet whether they accord with
Jordan’s E-transaction and Personal Status Laws or not. The research concluded that
Jordanian legislators have recognized this kind of divorce in legislation despite the
contradiction between Jordan’s E-transaction and Personal Status Laws. The
researcher recommends to Jordan’s legislators to amend the Personal Status Law to
fix this contradiction. |
|
DETERMINATION OF THE SACRED SPACE ULUWATU TEMPLE WITH THE GIS APPROACH |
Author : I Putu Sastra Wibawa, F.X Adji Samekto, I Putu Gelgel |
Abstract | Full Text |
Abstract :Bali Provincial Regulation No. 16 of 2009 on Spatial Planning for Bali regulates
the radius sacred space of the Uluwatu Temple as far as 5 km. This is contrary to the
social and cultural realities of the Pecatu village community. In reality, a radius of 5
km is not possible to be designated as an space that is not built because the people of
Pecatu Village have had customary law rules that existed before Bali Provincial
Regulation No. 16 of 2009 on Spatial Planning for Bali was established. Indigenous
people have the belief that the Uluwatu Temples sacred space is the Uluwatu Temple
forest. There was a conflict between the state law and the customary law of the Pecatu
Village community. This research is an empirical legal research using a
multidisciplinary approach where the application of law is juxtaposed with the use of
a geographical information system (GIS) to determine the reality of the development
of the sacred space of the Uluwatu Temple. This research raises two issues, namely
the reality of the law governing the sacred space of the Uluwatu Temple, and the
results of mapping the sacred space of Uluwatu Temple by using a geographical
information system (GIS). The results showed that not only the state law was in the
form ofBali Provincial Regulation No. 16 of 2009 on Spatial Planning for Bali, but
there were also customary laws of the Pecatu Village community which regulated the
space of the temple of Uluwatu Temple. In reality, based on the results of mapping the
built space in the space of the sacred space of Uluwatu Temple, it shows that the rules
of the indigenous people of Pecatu Village who have a perception that the sacred
space of Uluwatu Temple is the Uluwatu Temple forest is more acceptable because the
space has not been built either in the form of residential or tourism accommodation
|
|
RESTRUCTURAL JUSTICE-BASED LEGAL PROTECTION FOR BANKRUPT DEBTORS IN SETTLING BANKRUPTCY DISPUTES |
Author : Serlika Aprita, Joni Emirzon and Muhammad Syaifuddin |
Abstract | Full Text |
Abstract :The requirements to declare bankrupt debtors as stipulated in Article 2 paragraph
(1) of Law, Number 37 of 2004, concerning Bankruptcy and Delay of Debt Payment
Obligations do not provide further understanding regarding the comparison of debtor
assets and total debt that is due and does not regulate the existence of debt conditions
unable to pay or insolvency as a condition that debtors can be bankrupt so Indonesian
Bankruptcy Law tends to protect the interests of creditors who want to access all debtor
property and close opportunities for debtors who are still solvent but have financial
difficulties to run their business because they are decided to go bankrupt curator. The
other side of bankruptcy arrangements is based on various principles, one of the
principles that become a reference is the principle of business continuity. This principle
states that a decision on bankruptcy must consider the continuity of the company or
business entity that can still be maintained. These two different side rules give rise to
what is known as inclusion. One side provides flexibility for bankruptcy applications,
the other side provides leeway to not easily declare the debtor to be bankrupt.
To explain these regulatory problems, the researcher conducted prescriptive
normative legal research by analyzing Law Number 37 of 2004 concerning Bankruptcy
and Delaying Obligations of Debt Payments.
The restructuring justice-based business continuity principles should be described
(concretized) on positive legal norms in legal instruments testing the ability of debtors
to pay debts (insolvency test) in the context of legal protection for debtors and
settlement of disputes in commercial courts is reformulation of insolvency test
regulations that need to be amended in the provisions of Article 2 paragraph (1) of Law
Number 37 of 2004 concerning Bankruptcy and Postponement of Debt Payment
Obligations which regulates the requirement to declare bankruptcy debtors in the framework of improving the Bankruptcy Law in the future, therefore the Bankruptcy
Law should regulate matters as follows: (1) An addition of requirement for the creditor
numbers with falling debt, there are two or more creditors debts whose debts have
matured and can be billed; (2) An additions of the minimum amount of debt that can be
requested; (3 ) An application of capability testing debtor to settle the debt (Insolvency
Test) in bankruptcy; (4) The broad definition of debt in the Bankruptcy Law requires
complex proofs; (5) An appointment of expert consultants team; (6) An authority of the
Commercial Court Judge in the insolvency test and (7) The need to reorganize the
increasing of the prospective company value.
|
|
FOOD EXPENDITURE CRITERIA ANALYSIS, STATISTICS CENTER, WORLD BANK AND SAYOGYO PROFESSOR TO DETERMINE BENCHMARKING |
Author : Iskandar Abubakar, Munjin, R. Akhmad, Fitriah Maria |
Abstract | Full Text |
Abstract :Various criteria for measuring poverty lead to an interpretation that poverty is
deliberately raised as a sustainable project. This is seen from the use of food
expenditure criteria, statistical central agencies, world banks and others. As a result,
confuses local government when there is assistance from the central government. The
central government is guided by the poverty rate produced by the Central Bureau of
Statistics, while the local government uses the National Family Planning
Coordinating Board, and this uniformity also creates conflict with local communities.
The research was conducted in Bogor District. Population is three villages, and than
sample three is 122 samples. The Research shows that according to the World Banks
poor criteria are 87.5% and 23.3% are not poor, whereas according to the criteria of
poor Food Expenditure 93.8% and 12.2% are not poor. Meanwhile, according to the
criteria of poor Professor Sayogyo are 96.9% and 5.6% are not poor |
|
GROUND WATER QUALITY RECKONING FOR IRRIGATION PURPOSE: A CASE STUDY |
Author : M.V. Raju and P.V.V. Prasada Rao |
Abstract | Full Text |
Abstract :Water Source is an important feature of all. In India, water sources like pond,
lakes, canals, etc. in many areas satisfy various demands i.e. manly irrigation and
other demands of drinking, etc., rearing and ground water recharge. In India, many of
water sources recently have been lost due to man-made activities and many of
remaining water sources are in stress due to risk of degradation. Throughout the
world, many water sources are effecting from various kind of pollutants from
industrial, urban and agricultural development. Water sources like canals, tanks and
ponds are well constructed to harvest rainwater for various local uses; it may be
drinking or agriculture purposes. Water sources serve many environmental functions
including flood and soil erosion control and are useful for irrigation, supply of
drinking water and ground water recharge. In this present study about 295 ground
water samples were collected in twenty four mandals, covering entire region of
Guntur District. To know the suitability and quality of ground water for irrigation
purposes parameters were analyzed as Electrical Conductivity, pH, Sodium
Adsorption Ratio, Residual Sodium Carbonate , Sulphates, , Carbonate, Bicarbonate,
Chloride, Fluorides, Iron, Zinc, Copper, Manganese, Nitrates and Ionic ratios of
Ca/Mg , Ca/Na, Mg/Na, Ca/SO4, Mg/HCO3 , and to suggested various required
control and management techniques to make water for better utilization |
|
INFLUENCE OF BAGASSE ASH REPLACEMENT ON STRENGTH PROPERTIES OF CEMENT MORTAR |
Author : Lakshmi P.S, Dr. B.S. Jayashankar Babu, Dr. N.C. Balaji, Chaithra G.B |
Abstract | Full Text |
Abstract :Sugar cane bagasse ash (SCBA) is generated as a combustion by-product from the
boilers of sugar factories. This work deals with assessing the feasibility of using Sugar
cane bagasse ash (SCBA) as a partial replacement for cement in mortar.
Characterization of SCBA (SEM and chemical composition) demonstrated the high
pozzolanic nature of SCBA. Masonry mortar of grade MM3 was considered for trial
mix. The cement was partially replaced with 10%, 15% and 20% of the SCBA. The
fresh properties of mortar mixes were assessed by conducting flow table test. It was
observed that, flow values decrease with increase in percentage of replacement of
cement by SCBA. The impact of bagasse ash content as a partial replacement of
cement has been investigated on physical and mechanical properties of hardened
mortar including compressive strength, split tensile strength and flexural strength. For
the compressive strength three sizes of cubes and 150x300 mm cylinder were used.
The split tensile strength was determined using the cylindrical specimen of size
150x300mm and the flexural strength of mortar was determined using the specimen of
size 40x40x160 mm. Mortar mix of MM3 grade with compressive strength between 3
and 5 MPa were produced |
|
GIS BASED GEO STATISTICAL ANALYSIS AND MAPPING OF GROUNDWATER QUALITY: A CASE STUDY |
Author : C.T.Anuradha |
Abstract | Full Text |
Abstract :Due to the advent of modern technologies, in the field of textile industry, the
anthropogenic dyes and pigments play a major role. Dyes and pigments create the
pleasing effects on the cloth materials. Apart from that, they create the waste and
pollute both the surface and subsurface sources of water. The presence of residual
color, high levels of electrolytes, toxic substances e.g., metals and unreacted raw
materials in dye application processes produce wastewater that poses unacceptable
environmental risks. In the case of textile dyeing operations, the concerns raised
can arise from incomplete dye bath exhaustion and the presence of dyeing
auxiliaries and metal ions that are toxic to aquatic life. Contamination of drinking
water has become a major challenge to the Environmentalist in the rapid developing
countries. By mapping using the Decision Support system like GIS can be useful for
taking quick decision as graphical representation would be easy to take decision by the
policy makers. A water quality index expresses overall water quality data at a
particular location and time based on various water quality parameters. The main
objective of a water quality index is to turn complex water quality data into information
and it is used by the public |
|
OPTIMUM MIX DESIGHN OF LIGHTWEIGHT FOAM CONCRETE REINFORCED WITH CARBON AND POLYPROPYELEN FIBERS FOR STRUCTURAL STRENGTH |
Author : Haneen A. Hamad and Dr. Mohammed Adnan Basheer |
Abstract | Full Text |
Abstract :This paper is concerned with lightweight fiber reinforced concrete (LWFC).
Experimental mixtures are carried out with varying levels of silica, fly ash, superior
plastic, foam agent, carbon fiber and polypropylene. Four trail mixtures were tested
for optimum mix due to low density and high strength. Fresh and solid properties are
tested for the best combination of lightweight concrete reinforced with all fibers |
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THE DESIGN AND IMPLEMENTATION OF A SECURE ONLINE SEALED-BID AUCTION SYSTEM |
Author : Falade Adesola, Isaac Odun-Ayo, Moses Emetere |
Abstract | Full Text |
Abstract :E-commerce has grown to become one of the most widely used approaches for
engaging in trade of various forms. Unfortunately, this diversity and popularity has
been abused in numerous ways by malicious individuals. More and more customers of
online auction sites have fallen victims of fraudulent activities perpetrated by these
malicious parties. This article presents and discusses a practical implementation of
secure sealed-bid auction system with cryptography being its backbone. A number of
proposed auction schemes which fueled the motivation for this work are also
discussed |
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JURIDISM IMPLEMENTATION LAW NUMBER 9 OF 2017 AS A INDONESIAN COMMITMENT IN AUTOMATIC EXCHANGE OF INFORMATION |
Author : Bambang Sugeng Ariadi Subagyono, Agus Yudha Hernoko, Zahry Vandawati Chumaida, Asri Wijayanti |
Abstract | Full Text |
Abstract :This paper aims to determine a legal issues on taxpayer financial information by
the Directorate General of Taxes (DGT). This study is normative legal research. This
method is used to conduct analysis of laws and regulations, jurisprudence, and legal
literature. The research approach used is the approach of the Act (statute approach)
and the conceptual approach. The conclusion of this research is Law Number 9 of
2017 gives authority to the Director General of Taxes in terms of management of
financial records that is submitted or deposited by financial services institutions,
especially banking institutions. Sanctions given by law for banks and tax officers who
leak customer records to third parties or who are not interested will be punished in
accordance with the provisions in Article 41 of Law Number 6 of 1983 concerning
General Provisions and Tax Procedures. |
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RELEVANCE OF CONSTRUCTION SITE OPERATIVE TRAINING IN REDUCING ACCIDENTS ON CONSTRUCTION SITES IN NIGERIA |
Author : Oni O.Z, Amusan L.M, Akinbile B.F, Owolabi J.D and Ajao A.M |
Abstract | Full Text |
Abstract :This research assesses the relevance of construction site operative training in
Nigeria with a view to reducing construction sites accident. A cross-sectional research
design was adopted, where snowballing and random sampling techniques were used to
select the construction company and the respondents. Respondents to be sampled were
drawn from the list of professionals in the built environments such as Architect,
Quantity surveyors, Builder and the Engineers and site operatives such as skilled,
unskilled, semi-skilled labors and operators working with each construction company.
176 copies of questionnaires were distributed out of which 132 was completely filled
and returned, representing 75% response rate. Returned data were analyzed with the
aid of the Statistical Package for Social Science (SPSS) software version 21.0. The
result revealed that Been hit by falling objects, exposed to extreme temperature, falls
from height above ground, stepping on sharp objects and slip and fall on the ground
were among the five top health and safety related accident on construction site in Oyo
State. It also revealed that reduce construction site accidents, helps organization to
manage health and safety better, helps operatives to be more knowledgeable and
conversant with safety practices, were the foremost importance of operative training.
The study concludes that in order to reduce the menace of incessant accidents on
construction sites it is pertinent to engage frequent training and retraining of site
operatives on safety practices. The study recommends that construction industry should
include in their priority list training and retraining of their operatives in health and
safety practice.
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RELIABILITY ANALYSIS OF WATER DISTRIBUTION SYSTEM |
Author : S. Aravindan, Pradeep M, Boya Nagaraju, Rajashri Melannavar |
Abstract | Full Text |
Abstract :Water is the vital source for living. Water supply is an essential part of urban
infrastructure. Water distribution system plays a vital role in supplying water to
households for everyday use. A good water distribution system ensures minimal loss of
water during supply. Due to various causes the performance of a water distribution
system gets deteriorated which leads to wastage of water. It is necessary to evaluate
the performance of every water distribution system at regular intervals to ensure
efficient supply of water. The study focuses in evaluating a water distribution system
with the help of reliability analysis. A water distribution system comprises of nodes
and pipes with an overhead tank. Using EPANET, the hydraulic aspects such as
pressure, flow in each node and pipe are determined. Demand adjusted Epanet
analysis for 24 hr is simulated and calibrated with field values. Demand pattern is
given based on peak usage timings. With these hydraulic aspects reliability analysis is
done and reliability of each node was deduced. Reliability helps in identifying the
nodes which are less reliable and vulnerable. The overall evaluation resulted in 40
vulnerable nodes among 247 nodes in WDS. The vulnerable nodes with poor
reliability are found in Lakshmi nagar, Nesavalar nagar and Om Sakthi nagar along
M.G.R Street and Manakula Vinayagar Street. These nodes are to be addressed as
soon as possible. It is recommended to have a booster pumps in these areas to
improve the performance of water distribution system. |
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INVESTIGATION OF EFFECTS OF DAMPED AND NON-DAMPED SYSTEM ON A PLATFORM STRUCTURE |
Author : Adeniran S. Afolalu, Samson O.Ongbali, Abiodun A. Abioye, Oluseyi O. Ajayi, Oluwasegun J. Adelakun, Ademola Abdulkareem |
Abstract | Full Text |
Abstract :Damping is one of the significant way of isolating vibration or remoteness of
oscillation in a platform structure system which is usually carried out to reduce the
effect of loads on the system and entire platform structures from been damages. The
area of focus of this research work is to investigate the effects of damping and nondamping system on a platform structure and to analyze the effects of wave load on
periodic support of isolation system. The platform on offshore was considered as area
of focus to investigate the performance of the suggested mitigation system of
oscillation about an equilibrium point for offshore platform. This work study will
examined the value of parameter and modeling the fitting of an intermittent strut on
offshore platform to enhance isolation system due to its attenuations ability over
broad frequencies was presented. It was observed that the peak acceleration of the
platform and the peak displacement on the platform under wave load excitation gave
maximum periodic effects at minimum inter-structure drift and verse versa.
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PARAMETRIC STUDIES ON CONCRETE PARTIALLY REPLACED WITH SCBA SUBJECTED TO ELEVATED TEMPERATURE |
Author : Sandeep Kumar D.S, K. Chethan, Harsha G.S and Yashwanth M.K |
Abstract | Full Text |
Abstract :This study deals with finding the potential of sugarcane bagasse ash (SCBA) in
concrete as a partial replacement for cement and its behavior when subjected to
elevated temperature. The concrete mix is designed for M 30 grade as per IS
10262:2009. The cement is partially replaced by 0%, 10%, 15%, and 20% SCBA by its
weight. The concrete mix demands more amount of chemical admixture as the
percentage replacement increases in order to attain the desired slump. At room
temperature the compressive strength decreases with increase in percentage
replacement and was found that at 10% replacement the desired strength of 30MPa is
achieved. The split tensile strength is found to increase at 10% replacement. Besides a
series of specimens examined at room temperature, the concrete specimens were
subjected to 200?, 400?, and 600? for a retention period of 1 hour. It was observed
that the loss in strength at 10% replacement was more compared to 20% replacement.
The findings strongly endorse that bagasse ash when used as a supplementary
cementing admixture, imparts resistance to concrete at elevated temperature |
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THE IMPACT BETWEEN TOURISM SECTOR GDP AND EXPORT: STATISTICAL ANALYSIS APPROACH THE EXAMPLE OF KAZAKHSTAN |
Author : Sudabe Salihova, Kadir Bayramli and Basti Aliyeva |
Abstract | Full Text |
Abstract :From the date of declaration of independence of Kazakhstan, the tourism sector is
also given special importance among the sectors that are most important ones. In
Kazakhstan, tourism seems to have developed rapidly, especially after the declaration
of independence, and is trying to gain a place in the international tourism sector. The
aim of the work in this context is to test whether there is a relationship between tourism
and export revenues and to identify the possible contribution of this sector to exportbased economic growth. Thus, between 1995 and 2018, the time series for the variables
consisting of tourism revenues, GDP, export and service exports revenues were
examined using the Multiple Regression Statistics.
Correlation and regression analysis allowed us to obtain statistically significant
and predictable regression model for TR dependence on Export and Service exports |
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EXPERIMENTAL STUDY ON THE INFLUENCE OF SISAL FIBER REINFORCEMENT ON THE PROPERTIES OF SELF COMPACTING CONCRETE |
Author : Pradeep Kumar C P, H J Puttabasavegowda and M Divyashree |
Abstract | Full Text |
Abstract :Self-compacting concrete (SCC) is becoming a popular choice in concrete industry
dye to ease of placement in congested reinforcements, reduced labor and equipment,
no segregation character and smooth surface. Fly ash has been used in producing SCC
which increases filling and passing ability of concrete. The present study was carried
out to check the optimum dosage of super plasticizer which influence on fresh
properties of self-compacting concrete, the super plasticizers are varied from 0.5% to
1.75%. And also to check the fresh and hardened properties of sisal fiber reinforced
SCC with different percentage of fiber addition. The materials were mixed with 0.25%,
0.5% and 0.75% addition of fiber in M30 mix design and casted in cubes, beams and
cylinders. The obtained specimens were subjected to test the compressive, flexure and
split tensile strength. Compressive, flexure and split tensile strengths of the specimens
were analyzed for 7 and 28 days of curing. |
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EVALUATION OF SOIL LIQUEFACTION POTENTIAL INDEX FOR BAGHDAD CITY, IRAQ |
Author : H .H. Karim, Z. W. Samueel and D. A. Abdul Hussein |
Abstract | Full Text |
Abstract :Due to the economic, cultural, and political capital of Iraq with its very high
population of about 10 million around 25% of Iraqs population. besides its subjection
to frequent earthquakes in the last decade, this study tries to assess the factor of safety
against liquefaction potential indices (LPI) for the most awful seismic situations under
the effect of seismic loading during earthquakes. LPI was used in Baghdad, Iraq to
assess liquefaction severity at a specific location, combines depth, cumulative
thickness of liquefiable intervals, and factor of safety of liquefiable intervals into a
single parameter. Although the simplified procedure is used to compute the factor of
safety in LPI, the advantage of LPI over the simplified procedure is that it predicts the
performance of the whole soil column as opposed to a single soil element.
Liquefaction hazard maps for the area were prepared by conducting 200 SPT
soundings in the study area and computing values of LPI for earthquake magnitudes
4, 4.5, 5, 5.5, 6, and 6.5. The values of LPI are ranging from 0 to 200 (but mainly in
the range 1 – , with higher values located near Tigris River. The correlations
indicate that the severity of liquefaction increases with increasing LPI. Cumulative
distributions of LPI were then compiled for each geologic unit. The cumulative
percentage of each unit with LPI>5 indicates the proportion of the area underlain by
the unit that will exhibit surface manifestations of liquefaction. It was found that LPI
is generally effective in predicting moderate-to-severe liquefaction manifestations, but
its utility diminishes for predicting less severe manifestations. The LPI is inversely
proportional to the F.S. and the depth of the saturated layer, the higher the index, the
greater the potential of liquefaction. Although Iraq is apparently safe from seismic hazards, but seismic observations indicate else. Earthquakes are likely to happen and
may cause substantial damage. Thus, it is vital to take into account seismic
parameters in future design of large buildings. |
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A REVIEW ON IMMOBILIZATION AND LEACHABILITY OF HEAVY METAL IN CLAY PRECURSORS |
Author : N. S. Mohd Aripen, A. Abdul Kadir and A. A. Hashim |
Abstract | Full Text |
Abstract :The production of heavy metal waste from industrial activities has become a
significant concern for decades. Since heavy metal possesses non-biodegradable
characteristic, the reusability of metal waste without harming the environment is
highly demanded. This paper reviews the incorporation of heavy metal into clay
precursors as a great potential for pollution reduction. The leaching test carried out
in many studies shows the reduction of heavy metal’s effects towards the environment
when incorporating into clay precursors as heavy metal is immobilized and formed
crystalline structure after the thermal treatment. From the reviewed literature, it is
found that the immobilization process successfully stabilizing heavy metal and
increases the metal’s resistance against the acidic attack through the formation of low
permeable structure in the clay precursors |
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CYCLIC STRENGTH OF NEW GENERATION CONCRETE |
Author : Travush V.I., Karpenko N.I., Erofeev V.T., Erofeeva I.V., Bondarev B.A., Bondarev A.B., Seleznev V.A. |
Abstract | Full Text |
Abstract :At present, in terms of technical and economic indicators, concrete and reinforced
concrete are, and will remain in the future, the main structural materials, and occupy
a priority position in the overall structure of world production of building products |
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A ROADMAP FOR IMPROVING E-LEARNING IN JORDAN AND ENSURING THE QUALITY OF ITS OUTPUTS |
Author : Mohammad M. Al Helih and Yacoub A. Nasereddin |
Abstract | Full Text |
Abstract :This research aimed to investigating the effect of the seventh discussion paper of
His Majesty King Abdullah II Bin Al-Hussein as a roadmap for reforming education in
Jordan and ensuring the quality of its outputs This research discussed the current
situation of education in Jordan and the pillars of the roadmap for reforming education
and ensuring the quality of its outputs. On the other hand, this research concluded that
axes of educational reform in Jordan are: curricula, especially standards – based
curricula, teacher and teaching learning environment. Currently, Jordan finding ways
to improve stabilize, and merge Jordanian cultural uniqueness is a fundamental focus
of education policy. Although embracing of any inclusive education reform is difficult,
lengthy, and sometimes expensive, the rewards can be significant. It is inspiring that
many recent signs indicate Jordanian education is concerned in reform, making plans
and creating new policies to improve education. Has inferences for theory, policy, and
practice in a variety of ways, and its findings could enlighten the way fit back into the
big picture of Jordanian reform. A large portion of the study’s significance stems from
discovering what amendments may be needed to successfully adapt e-learning to work
within the unique context of Jordanian education |
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STUDY OF HUMAN RELIABILITY IN CONSTRUCTION OF INFRASTRUCTURE PROJECTS |
Author : Samarth Ramprasad. K and Dr. Prabhat Kumar |
Abstract | Full Text |
Abstract :The human reliability in construction activities plays a key role in safe and timely
execution of the project. Construction is a skill and attitude based activity with good
awareness and knowledge on hazards. The infrastructure projects are like high ways,
bridges, rapid mass transport, power, oil and gas, railways, airports, etc. which are
the indicators of the progress and development of economy of any nation. The
construction industry is one of the largest employer globally. The dynamic nature and
short term of work, high mobility of work force, low literacy level, communication
barriers, etc are the biggest challenges to the safe performance and human reliability
in construction industry.
The main objective of the study is to identify the Performance Shaping Factors
(PSFs) and their influence on safety performance and human reliability. The study
was mainly focused on different categories of work force and on the overview of
human performance in construction activities in six large –scale infrastructure
projects located in different places in India representative of a total of about 10,000
personnel over a period of 4 years. The questionnaire survey, work site observations,
interviews, discussions, etc. based on human practices, organization and management
methods, stressors, etc. were conducted at different sites. The empirical, exploratory,
qualitative and quantitative research approaches with triangulation method were used
to assimilate and analyze the survey data. The human performance elements are
factored and modeled in the study.
The study has categorized human, organisational and work environment factors,
reviewed and considered relevant case studies, identified elements that affect human
behaviour and reliability. The outcome of this comprehensive study is to develop a
state-of-the-art assessment model for the influences / impact of performance shaping
factors and reduce human error during construction in order to enhance the culture of
quality safety and reliability in infrastructure projects. |
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SITTING MSW LANDFILL COMBINING GIS AND ANALYTIC HIERARCHY PROCESS (AHP), CASE STUDY: AJDIR, MOROCCO |
Author : Y. Bouroumine, L. Bahi, L. Ouadif, and A. Ait Errouhi |
Abstract | Full Text |
Abstract :Determination of proper landfill site involves multiple disciplines. The landfills
contain a large quantity of solid waste. The management of solid waste (MSW)
necessitates the involvement of different stakeholders. In this paper, we aim to
determine the appropriate landfill site at the level of the municipality of Ajdir in the
province of Al Hoceima Morocco. We take into consideration the opinions of the
stakeholders. Based on environmental, socio-cultural and economic criteria. For this
purpose, we used in this paper two multi-criteria analysis methods. The Geographic
Information System (GIS) and the Analytic Hierarchy Process (AHP). First, we created
the database GIS related to the study area. Next, this data was processed to determine
the landfill sites that respect the stakeholders priorities and exclusion criteria. Then, a
multi-criteria analysis by AHP method was carried out. This analysis took into
consideration the stakeholders priorities and criteria. Next, using AHP method, a
comparison was made between the landfill sites available. This comparison was based
on the priority of the criteria. It simplified the classification of the landfill sites from
the most favorable to unfavorable site in the study area.
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EXTRACTION OF LINEAMENTS USING OPTICAL AND RADAR IMAGES. THE CASE OF TAN-TAN PROVINCE, MOROCCO |
Author : Bouchra Razoki, Mohamed Yazidi, Khadija Kaid Rassou, Saïd Chakiri, Achraf Khaddari, Zohra Bejjaji, Fatima El Hmidi, Hassan El Hadi, Mohamed Allouza |
Abstract | Full Text |
Abstract :Water is a natural resource essential to life and sometimes a determining factor in
the socio-economic development of a country or region, as in the arid province of
Tan-Tan, where groundwater is characterized by scarcity and its spatial and temporal
irregularity combined with excessive mineralization. Water resource management is a
major problem for the economic development of this Sahrawi region, which will serve
a growing population in urban and rural areas in the coming years. In this study,
several lineament extraction techniques were applied to optical image data from the
Sentinel 2 sensor and Alos Palsar Radar sensor including different types of
enhancement, as well as the application of different directional filters to PCA
products derived from the original images. The extracted lineaments were evaluated
in the areas geoscientific database (bibliographic syntheses, survey data and field
surveys) and clearly show the dominance of the NE-SW direction, which is the major
direction detected by the N45° filter, whose frequency is very high. Statistical analyses
were also carried out to determine the lengths and densities of the lineaments. These
new documents will allow a better understanding of the fracturing - water circulation relationship, and the identification of recharge and mineralization zones, and will also
allow the orientation of hydrogeological prospecting |
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THE EFFECT OF TRANSFORMATIONAL LEADERSHIP, ORGANIZATIONAL CULTURE, JOB SATISFACTION, AND ACHIEVEMENT MOTIVATION ON THE PRINCIPALS ORGANIZATIONAL COMMITMENT OF JUNIOR HIGH SCHOOL IN MEDAN CITY |
Author : Henny, Biner Ambarita, Harun Sitompul, Paningkat Siburian, Benyamin Situmorang, Sukarman Purba |
Abstract | Full Text |
Abstract :The aim of the study were to analysis the effect of the organizational commitment
model of principal built on associative causal relationships between exogenous
variables and endogenous variables to be adaptively implemented in junior high
school in Medan, the effect of transformational leadership directly on the job
satisfaction, organizational culture directly on the job satisfaction, transformational
leadership directly on the achievement motivation, the organizational culture directly
on the achievement motivation, transformational leadership directly on the
organizational commitment, the organizational culture directly on the organizational
commitment, job satisfaction directly on the organizational commitment, and the
achievement motivation directly on the organizational commitment. The research was
carried out in 2018 with sample of 197 principals of junior high school in Medan City,
selected proportional random sampling. The data analysis technique used descriptive
analysis and inferential analysis. Based on those findings it could be concluded that any changing or variation which occurred at principals organizational commitment
might have been effected by transformational leadership, organizational culture, job
satisfaction, and achievement motivation. Thus, it can be stated that the better
transformational leadership, the stronger the organizational culture, the better job
satisfaction, and the higher was the achievement motivation, the higher the principals
organizational commitment of junior high school in Medan City. |
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DIAGNOSIS OF THE ENCLOSURE OF THE MEDINA OF SALÉ IN MOROCCO - CASE OF RECTANGULAR TOWERS |
Author : Driss ELHACHMI, Lahcen BAHI, Latifa OUADIF, Rachid BENKMIL |
Abstract | Full Text |
Abstract :The enclosures of the historic cities are important constituents of the heritage built
in Morocco. These historical monuments enrich the history, architecture and culture
of the country. The development of this patrimony and its preservation requires
serious and tireless efforts on the part of all.
The Salé enclosure is considered among the oldest Islamic defensive works in
Morocco. Unfortunately, it is not highlighted and is in a state of advanced
degradation that threatens its existence. It suffers from structural pathologies whose
main causes are humidity and anthropogenic factors.
The objective of this article is the visual diagnosis of this enclosure, the inventory
of the different pathologies and the possible causes. This diagnosis will later focus, on
the case study of the existing rectangular towers on this enclosure, the main
pathologies that affect them and the evaluation of conservation states implemented for
the preservation of this heritage.
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