This paper study the impact of communication through collaboration on construction projects performance in Indonesia. The current descriptive study, applied quantitative method in data gathering, represented the construction companies in Indonesia. The analysis shows a positive and significant relationship between formal and willingness to communicate with project collaboration. It also supports that project collaboration has an impact on project performance.

The limitation of land in urban area leads to the existence of land slowly omitted and changed to be functioned room. The additional room itself will be reducing thermal comfort in the house. To maintain thermal comfort, some alternative solutions are directed in conjunction with modern technologies, for instance using air conditioning system. However, the solution proved that it can produce more energy extravagance, and stimulate global warming (Givoni, 1998). Therefore, alternative natural cooling system with less energy consumption for getting comfortable level in residential house and similar building is required. The work described here is a computational fluids dynamics (CFD)study aimed at validating the numerical method with experimental data available from a house incorporated with vertical ventilation system which existed at Surakarta Indonesia (Azizah R. and Qomarun, 2014). A detailed computational model of the house device has been established. Initial CFD work has focused on establishing the relationship between ambient wind speed and relative humidity and temperature, and later comparing the results with the existing experimental data. Main outcomes are conformable level and promising of using natural cooling system. Detailed flow field are visualized that were not seen from the experiments. Further simulation work to model the house performance with water spray evaporation is addressed in brief and the results are plotted into comfortable zone using psycrometric chart

Various methods have been developed to evaluate workload in everyday life, and various methods of observation have been carried out. But it is still a debate until now. In this journal, the development of biomechanical methods for evaluating workloads which ergonomics will then be compared with the observation method. The observation method used is the SCANIA Ergonomics Standard (SES) and Rapid Upper Limb Assessment (RULA) methods which will be used to assess ergonomic workloads on two simulation workstations such as tightening, loosening, or increasing the number of pipes, and carrying out other actions. Sensors are also used to measure biomechanical data (Inclinometers, Accelerometers, and Goniometers). The results obtained show an assessment of the risk factors of RULA and SES according to the final results using biomechanical methods. However, there is a mismatch in the neck and wrist posture. In conclusion, the biomechanical approach is more appropriate than the observation method, but several risk factors are evaluated by unmeasured observation methods with biomechanical techniques that have been developed

Pasting Scheme is a generating model for Tiling and Tessellation pattern. Truchet tiles are special type of tiles with continuous arc. In this paper the pasting scheme model is used to study the construction of triangle shaped Truchet tiling and diamond shaped Truchet tiling using the Truchet tiles.

This research focus on a recent review of the techno economic study of coal fired power plant in south east Nigeria, its application, effects and suggestion in processing the coal and safeguard the atmosphere. Electricity crisis in Nigeria and power reform in the sector is analyzed to determine another source of electricity generation in the country. To recognize the fact that coal is one of the mostly available sources of energy than oil and natural gas. Furthermore, Coal production in different countries and environmental impacts enables us to forge ahead in generating electricity through coal processing. Finally, economic evaluation of the plant will boost coal fired power plant in south east Nigeria

Qualify work life is an organizational phenomenon that benefits both employers and employees alike. As such, research continues to focus on how to draw out employee commitment, given quality of work life. Ranging from increased employee productivity to balance between work life and family life, literature has it that organizational goals become more achievable, if desired quality of work life is provided by the employer. Nevertheless, little or no attention has been given to startups in terms of empirically carrying out studies to determine how quality of work life influences employee commitment in them. In this paper, staffs of 10 selected techstart-ups located in Lagos have been surveyed using a questionnaire form. Four hypotheses were developed with a sample data of 300 employees across the different tech-start-ups. By carrying out a structural equation modeling and moderating the relationship with gender and marital, it was observed that employee commitment is largely influenced by quality of work life

A shipyard is one of the most important element in the shipping industry for carrying out a job as building and repairing ship. The purpose of this research is developing a recommendation for the shipyard to get the best schedule, and not get the risk of delays in ship repair, in this case, is PT. ASS. The result showed that the delay on ship repair project is using schedule risk delay software is 5 days maximum delay from the designated delay dates. The high impact cause of the delays is bad weather condition and worker accident. In the present work, an attempt has been made to experimentally investigate the performance of a flat plate solar air heater. Experiments were performed to find the energy and exergy efficiency at the different mass flow rate of air. It is observed that for a 16% increase in the mass flow rate of air, energy efficiency increases by 20%, whereas exergy efficiency increases by 36%.

Composite materials have gained traction in the world today and are becoming of common use in industrial and specialized applications in general due to their flexible nature that involves mixing through layers or matrixes the components of various substances and therefore, a percentage of each substance’s physical properties. In recent years there has been an increasing concern for industries to use cost effective reinforcement for metal materials like aluminum which is abundant cheap, with various desirable properties like its lightness, but lacks the strength for various applications – ceramic materials such as SiC and aluminum oxide are used generally for reinforcing the aluminum MMC. There is a good probability, backed up by tests for certain materials, that reinforcing metals with composites can increase failure displacement, fatigue life, ultimate failure load and energy absorption capacity, amongst many others by substantial amounts

The estimation of determinants of housing development patterns in international border towns is essential to overcome some of the challenges facing development in these areas. However, few studies have detailed physical factors and neighbourhood characteristics as determinants of housing formation in international settlements. It is in this respect that the researcher aimed at evaluating these factors as regard housing formation pattern in international areas. The study systematically obtained the opinion of selected 361 residents in three selected towns between Nigeria and Benin-Republic using questionnaire instrument. Also, the relationship between housing development pattern and the determinants was hypothesized based life-cycle model of neighbourhood change using Structural Equation Modelling (SEM). Both models of SEM – Measurement model and Structural model – adequately fit the study data. From the structural model findings, it was discovered that both physical (0.13) and neighbourhood factors (0.11) significantly have direct effects on housing development pattern in international towns. Housing physical factors such as road network, land features, dwelling accessibility and vegetation have indirect effect on housing pattern just like neighbourhood factors in the area of drainage system, level of infrastructural facilities, condition of space, and condition of foundation and land acquisition finance. The study affirms that both physical factors and neighbourhood factors largely and significantly influence housing formation patterns in the international borders. Therefore, there is need for Nigeria government most specially to take cognizance of these important factors when formulating or developing her housing development plan

Large ring-shaped forgings manufactured by ring rolling, as heavy as 10 tons, are greatly affected by cooling. In the present study, controlled cooling was performed to improve the mechanical properties of large ring-shaped forgings. To quantify cooling rate, thermocouples were used to measure the cooling rate and the microstructures of the products were observed during still air cooling, fan cooling, mist control cooling, and water quenching. The temperature distribution measured in the four cooling methods was used to calculate the heat transfer coefficient in each cooling method by the inverse method. The mechanical properties were tested with specimens obtained from the test block for each cooling method, and continuous cooling transformation (CCT) curves were obtained by using measured microstructure contents. The mechanical properties of the regions corresponding to the regions of the specimens were calculated on the basis of the CCT curves and the heat transfer coefficients. The experimental values and the analytical values of the strength of the products manufactured by each cooling method were compared to verify that the mechanical properties at each region of the products depending on the cooling methods may be predicted

This paper explains how to convert the lost energy through exhaust system in internal combustion engines “ICE” to electric energy by using thermoelectric generators "TEG" with the benefit of the equipment’s which are already existed in most of the internal combustion engines such as water pump, heat exchanger, and exhaust system. The miniature cooler system which is designed in the laboratory to execute the experiment is similar to combustion engines water coolant system to keep the cold side in “TEGs” fixed on ambient temperature. The heat source was applied on the hot side to “TEGs” is came from small candles where the “TEGs” consist of “Bismuth Telluride” material as N-P stripes attached thermally in parallel and electrically in series where it inserted between two porcelain layers. The electric current generated from “TEGs” is direct current “DC” the experiment showed the value of electrical current was proportional to the temperature difference between "TEGs" sides

Industrial conflicts in organizations are inevitable due to disagreement between the employees and employers which can either benefit or harm the organization. For the efficacy of the employer, there should be very positive ties between employer and workers. This study therefore, focuses on the use of collective bargaining as an effective instrument for management of conflict in Store Product Research Institute, in the north central of Nigeria. The study made used of pluralist theory as frameworks and employs both qualitative and quantitative research techniques. The findings of the study shows that negotiating via the process of collective bargaining on the terms and conditions of employments were not satisfied to the employees in the way the management of the institution handle them. Therefore, a proactive collective bargaining procedural and substance rules are recommended for both parties to reach collective agreement

The need to develop a highly stable suspension system capable of operating in multi terrain surfaces while keeping all the wheels in contact with the ground. To design a mechanism that can traverse terrains where the left and right rockers individually climb different obstacles. To sustain a tilt of over 50degree without tipping over the sideways .Rocker bogie are important for conducting scientific analysis of objectives that are separated by many meters to tens of kilometers. Current mobility designs are complex, using many wheels or legs. They are open to mechanical failure caused by the harsh environment on Mars. A six wheeled rover capable of traversing rough terrain using an efficient high degree of mobility suspension system. Six motors are located inside the body where thermal variation is kept to a minimum, increasing reliability and efficiency. Six wheels are used because there are few obstacles on natural terrain that require both front wheels of the rover to climb simultaneously. A series of mobility experiments in the agriculture land, rough roads, inclined, stairs and obstacles surfaces concluded that rocker bogie can achieve some distance traverses on field

In this paper, the technique of structure health monitoring was applied to detect damage occurrence in the stiffeners of wing structure. A wing structure of airfoil shape according to digital NACA 0015 was considered for modelling the aerodynamic wing shape. Finite element models of the wing structure were created included undamaged and damage wing structures using high order eight nodes and six nodes shell elements. The damaged wing models included damaged at the main spar at 20%, 40%,60% and 80% the distance than the root chord. A mathematical model was developed using high order shell elements and programmed via MATLAB. The load cases were predicted experimentally using wind tunnel test on a wood airfoil prototype such that the pressure distributions through upper and lower wing skins measured at different attack angles. The static solutions were achieved for each finite element model under action of maximum pressure distribution at attack angle of 100 . Strains distributions and lateral deflections through lower skin were estimated. The results of strains through lower skin showed occurring of climax in strain values initiated in the distribution at the location of the damage for all the cases of damaged structures, which not appeared in the undamaged wing structure. The results of lateral deformations through lower skin showed indicating variations in the shape of the curves, such that the curve appeared to be gradually increased the region between the chord and the damage. Semi to rapid increasing in the lateral deformation occurred in region between the damage and the end tip of wing. The difference in the behavior of the induced strains and lateral deformation between undamaged and damaged wing structures is intended to a technique predicting of the occurrence of the damage in the wing structure. The present of a climax in the strain distribution lead to presence of damage near the climax value of strain. Also, the indicating of variations in the shape of the lateral deformations of skins semi or rapid increasing lead to presence of damage near the rejoin of that variation. It is concluded the possibility of using the strain and deflection analysis for the wing structure to investigate occurring damage in the structure due to variation in the strains and lateral deflections between different damage locations.

Understanding of scintillation is a significant occurrence in the design of communication satellite system. In this research, two years (January 2015-December 2016) tropospheric scintillation records dig out from Astra 2E/2F/2G at 28.2 o E Satellite path link observation at (Lat: 6.7 o N, Long: 3.23 o E) at Ota, southwest Nigeria, at 12.245 GHz and an elevation angle 59.9o . The result and analysis were likened with some reliable tropospheric scintillation estimate models in order to acquire best model for Ota environment. The result findings revealed that the Karasawa model provides the minimum percentage error for scintillation fades and enhancements of approximately 0.57 % at 0.1 unavailability of time and 6.93 % at 0.01 unavailability of time respectively. Hence, Karasawa model is the most found suitable for the estimation of transmission loss in this region. Also, scintillation intensity is noticed to be high throughout the non-rainy season likened to rainy season months. Conversely, the model must be verified more by means of higher frequency band like Ka and V bands to affirm the accurateness of the model. The statistics provided in this work will assistance in fade margin for performance and antenna sizing required for communication satellite link.

Fertilizers have an important role in increasing rice production. Rice plants need nutrients in sufficient quantities, the use of fertilizers in accordance with soil nutrient needs will get good plant growth and adequate yield, but the dosage of its use must be appropriate to reduce the impact on the environment. Determination of Dosage The use of fertilizer N, P, K in lowland rice is based on local location according to soil nutrient status and several other criteria. This study aims to develop simulation tools to recommend N, P, and K fertilizer doses for lowland rice in Indonesia. Modeling criteria for decision making with the Fuzzy MCDM and TOPSIS methods used to determine the chosen alternative solutions. Data testing results based on specific five locations showed accuracy of fertilizer recommendations with expert comparisons, resulting in a minimum accuracy of 75%, a maximum accuracy of 99.5% and an average accuracy of 80%. The application of the Fuzzy TOPSIS method shows that the system can provide alternative solutions based on the criteria used as the basis for determining fertilizer dosages for location-specific lowland rice

Conflict management strategies are the measures used to manage conflict in the university in order to improve staff performance but unfortunately these universities have suffered major decline in Nigeria university due to conflict. The study adopted the survey research design in collecting data from three public universities that were chosen from three states to represent Southwest Nigeria namely: Oyo, Lagos and Ogun. The contiguity of the three States is another factor of convenience and reach which supported the selection of the States. The analysis which included the quantitative analysis aimed at assessing the main conflict management strategies that can influence the productivity of staff in the selected public universities. Based on the results, the hypothetical model of conflict management strategies and productivity was drawn up, which was later tested in the current study with a PLS-SEM path analysis. The above summary shows that only two hypotheses were rejected. Accommodation strategy does not influence staff productivity, nor does the collaboration strategy have an effect on the productivity of staff. The results show that there are other several connections between conflict management strategies and staff productivity

Tourism sector in Thailand has been promoted as a key sector to create economic expansion since the early of 2010s. The increasing in demand for tourism in Thailand induces a significant final demand in tourism related sectors. In order to prepare for the growing in tourism sector, the number of visitors should be forecasted. This paper set up a new composite index called economic condition for tourism (ECT) index. This index summarizes the information of the macroeconomic variables which effect the demand for tourism in Thailand. The methods of composite index are implemented. There three weighted average methods that were used: simple average, variance decomposition and factor important. Then, the ECT index can be used as a leading indicator for number of foreign tourists. The ECT index also act as the important factor forecast the number of foreign tourists. Tourism price in Thailand, tourism price in AEC and crime rate are the most important economic factor to determine the ECT index and for the forecasting the number of foreign tourists. The results emphasis that to support the tourism promoting, price stability policy and crime reducing policy should be considered.

Due to the intensive development of the digital business, malicious software and other cyber threats are becoming more common. In order to increase the level of security there are needed appropriate special countermeasures, which are able to remain effective when new types of threats occur, and which allow to detect cyberattacks targeting on a set of information system resources in fuzzy conditions. Different attacking effects on the corresponding resources generate various sets of anomalies in a heterogeneous parametric environment. There is known a tuple model of the formation of a set of basic components that allow to identify cyber-attacks. For its effective application a formal implementation of the approach to the formation of sets of basic detection rules is necessary. For this purpose, there has been developed a method that focuses on solving problems of cyber-attacks detection in computer systems, which is implemented through three basic steps: formation of anomaly identifiers subsets; formation of decisive functions; formation of conditional detection expressions. Using this method, it is possible to form the necessary set of detection rules, which determine the level of anomalous state of values in a heterogeneous parametric environment, characteristic for the impact of a certain type of attack. The use of this method at the creation intrusion detection systems will expand their functionality regarding the cyber-attacks detection in a weakly formalized fuzzy environment

This paper provides a survey of Implementation and Validation involved in Memory Built in Self-Test (MBIST). This paper comprises of the various strategies involved in the implementation and Validation of the Memory Built in Self-Test (MBIST). MBIST (Memory built-in self-test) provides an effective solution for testing of such large memories. Verification of functioning MBIST is an essential part in any SoC design cycle, as it enables the designer to detect beforehand any issues related to MBIST [11] . The advantages of MBIST are simplicity of test program, Possibility to run different algorithm, Reduction in test cost, Possibility to run user defined algorithm on memories

There have been dramatic changes in workforce demographics over the past few decades affecting employment relation. As a result, flexible work pattern became a common initiative used by organizations globally in response to various challenges faced in demanding industries like the banking sector. Despite the efforts of management to facilitate quality life, concerns regarding how this practice contributes to greater commitment remain worrisome. Descriptive approach was used and the target respondents comprises purposively selected commercial banks staff in Lagos state. Data collected were through the use of questionnaire and analysed through a variance-based model. Findings revealed that the strongest predictor of flexible work pattern initiatives is flex location specifically telecommuting, followed by flexitime which comprises of the use of shifting swaps, flex-hours and compressed work weeks while flexitime-off had the least

This paper presents a dynamic model of a tilting child travel seat. The child seat is presented as a physical pendulum. Thereby the seat in concert with the child can rotate around a cylindrical joint located above its mass center. This way the lateral acceleration acting on the child travelling in a cornering vehicle can be reduced. Thus the ride comfort of children travelling in road vehicles can be improved. The differential equation of motion of the system child-child seat, necessary for the needs of the research is presented. Numerical simulations of free and forced oscillations of the pendulum type child seat are carried out with MATLAB. Displacement, velocity and acceleration results obtained after conducting the numerical simulations are presented in graphical form

The problem of high manufacturing costs has led to the shutdown of many manufacturing companies in Nigeria. This study examines the relationship between cost reduction strategies and the growth of manufacturing companies in Nigeria using data from annual reports of 40 manufacturing companies quoted on the Nigeria Stock Exchange within the period of 2012-2016. 40 manufacturing companies were sampled purposively for this study. The study took changes in material cost, changes in labour cost and changes in administrative overhead as variables for cost reduction strategies while changes in turnover as the variable for Growth. Correlation analysis was conducted to determine the association cost reduction strategies and growth while, regression analysis was used to determine the impact of cost reduction strategies on the growth of manufacturing companies. Results showed a positive significant relationship between cost reduction strategies and growth of manufacturing companies in Nigeria. The study recommends that manufacturing companies should implement value analysis in order to reduce material costs and the implementation of cost reduction strategies in all manufacturing companies in Nigeria.

The current study analyses the effect of using a pendulum type tilting child seat on the comfort improvement and the reduction of kinetosis (motion sickness) among children traveling in an automobile. Road tests with registration of the accelerations for a conventional child seat and a pendulum type tilting child seat are performed. Results for the spectral densities of the linear accelerations along the orthogonal axes are presented. The quadratic means of accelerations acting on both seats are calculated and compared. Results for the motion sickness dose value are obtained. A calculation for the percent of people who can vomit is made and the results for both seats – conventional and tilting, are compared

Tourism sector in Thailand has been promoted as a key sector to create economic expansion since the early of 2010s. The increasing in demand for tourism in Thailand induces a significant final demand in tourism related sectors. In order to prepare for the growing in tourism sector, the number of visitors should be forecasted. This paper set up a new composite index called economic condition for tourism (ECT) index. This index summarizes the information of the macroeconomic variables which effect the demand for tourism in Thailand. The methods of composite index are implemented. There three weighted average methods that were used: simple average, variance decomposition and factor important. Then, the ECT index can be used as a leading indicator for number of foreign tourists. The ECT index also act as the important factor forecast the number of foreign tourists. Tourism price in Thailand, tourism price in AEC and crime rate are the most important economic factor to determine the ECT index and for the forecasting the number of foreign tourists. The results emphasis that to support the tourism promoting, price stability policy and crime reducing policy should be considered.

This research was conducted with the aim to determine the effect of business capital, technology and human resources on the business performance of bag noken craftsmen in Merauke. The research approach taken in this study is to use a quantitative research approach because the data is related to numbers. The population in this study were 53 people, namely business owners. Data collection methods used by the authors in this study were observation, questionnaires and interviews. In this study researchers used 3 (three) variables including; 2 independent variables and 1 dependent variable. Data Analysis Techniques used are validity test, reliability test, multiple linear regression analysis. The results showed that the Business Capital, Technology and Human Resources variables obtained F-count 40.666> 3.10 F table. It can be concluded that H4 is accepted and H0 is rejected, meaning that there is a significant effect of the independent variable on the dependent variable with a significant level . The F test results are known F count> F table with a significant level <0.05, so it can be concluded that the variables of venture capital, technology and human resources have a positive and significant effect on business performance in the Noken bags craftsmen in Merauke.

The purpose of this paper is to analyze the calculation of the amount of loses that occur in the PT Pelindo IV Merauke Branch water distribution network. This study uses the method of observation and literature review. Head losses calculation requires flowrate data (Q), high pressure (h), and pipe flow velocity (v) using the DarcyWeisbach and Hazen-Wiliam methods. Data is collected and calculated to find available Head Loses, Positive Head Suction and Net Positive Suction Head required. The water velocity at the final pipe is 4.39 m / s, the fluid velocity that enters the pump is 3.559 m / s, the discharge capacity is 72.144 m3 / hour with a power requirement of 19.1758 kW. The available Net Positive Suction Head is 8.019 m and the Net Positive Suction Head required is 2.86 m, the total head is 24.92 m while the maximum Head of the pump is 60 m so it can be stated the pump works in a safe and without experience cavitation.

In order to reduce the harmful effects on the environment, researchers around the world must find ways to reduce emissions. For this reason, the EU allows the use of biofuel mixtures as fuel for internal combustion engines. Therefore, an alternative has been made in this study. Since biodiesel is used in experiments for the effect of internal combustion engines on emission concentrations, it shows uncertain results. Due to the performance of biofuels, such as combustion delays, injection times, fuel types, etc., for this reason, researchers have tried to add some alcohol compounds to biofuels for investigation. Because biodiesel type of biofuel material has some FAME (fatty acid methyl ester), it has some effects, such as high density and low calorific value, although it has better emissions and reduced lubricity compared to pure diesel. But if biofuel additives and alcoholic acid compounds affect the biofuel diesel ratio and diesel injection time on combustion, performance and emissions. In this paper, emissions of CO, CO2, NOX and unburned hydrocarbons are measured

Biodiesel fuel represents a unique opportunity in the current global energy scenario owing to its sustainability, renewability and potential to be universally accessible. Experimental and analytical works have established a mismatch between fuel chemistry and current diesel engine design. This, to some extent, accounts for observed challenges in performance and emissions from engines running on biodiesel. Computational schemes have played an increasingly important role in defining the scope of these challenges. Computational models’ reliability has improved over time in predicting engine performance and emissions. Identifying a combustion strategy that works best for biodiesel is a research imperative. This review presents some of the strategies that have the potential to enhance biodiesel’s advantages and mitigate the observed challenges.

Wind Energy is a part of promising renewable energy, in this article the author studies the potential of wind energy as a source of wind power in the city of Merauke. The method used is to analyze the probability of wind speed distribution based on primary data and secondary data using the 2 parameter weibull distribution to find out the character of the wind after that then calculate the potential of available wind energy. The results of wind speed character analysis show ß form parameter > 3, the wind energy potential available in Merauke, with different elevations producing wind energy potentials ranging from 2 kW to 56.83 kW.

A locust bean dehulling machine was fabricated and evaluated using locally available materials. The machine performs dual operations of removing the seed coats and cleaning. Components of the machine include the frame, hopper, dehulling chamber, water container, discharge outlets, set of gears and bearings in operation. In operation, locust beans seeds introduced via the hopper moved to the auger which separates the soft pulp and conveys the material into the dehulling chamber. The seeds were washed in the dehulling chamber while the coat (residual waste) passes through the sieve into the water trough where it was discharged through the waste outlet. Throughput capacity, output capacity, recovery percentage and cleaning efficiency were 264.0kg/hr, 98.48%, and 98.75%, respectively. This machine may find applications in the processing of locust beans

In this paper we present a new heuristic algorithm to minimize the total completion time (Makespan) in permutation flow shop scheduling of ‘n’ jobs and ‘m’ machines by using harmonic triangle. In any shop floor, the major responsibility of process planning engineer is to process the ‘n’ number of jobs in ‘m’ machines within the due date. It can be achieved by optimal sequence of processing the jobs. Many classical heuristics procedures were proposed starting from Johnson’s algorithm to find optimal or near optimal sequence for job completion.In this research, an attempt is made to propose a new heuristic by using Harmonic triangle. Also, the new heuristic is compared with fewother popular heuristics like CDS, Palmer, RA and Gupta Heuristics and the efficacy of new heuristic is analysed

The transporters are required by the security forces for quick mobility to inhospitable terrains while protecting the borders. The paper presents a preliminary design of an all-electric multi-terrain transporter. The caterpillar design is adopted to develop the chassis. Softwares CATIA and ANSYS are used for modelling and analysis. Ratings of motors needed to drive the transporter are estimated. Microcontroller unit is used to control the drive system

Experiments on cold deformation behaviour are conceded out on as cast and homogenized Al-5.4Zn /coal ash/ Silicon carbide composite billets. The study was intended to evaluate the effect of reinforcement percentage on the deformation behaviour. The mechanical properties like hardness, tensile behavior, modulus of elasticity, yield stress have been carried out. The microstructures were taken from SEM to examine the distribution of ash and SiC particulates in the matrix. The deformation process is carried out between two flat platens and sample at the center to envisage the metal flow at room temperature. To observe the changes in hardness after deformation the hardness measurements were carried out to examine the changes after the forging. It is observed from the experimentation that the circumferential stress s? has positive values (tensile) with unremitting deformation. As the barreling initiates, the axial stress, sz will get compressive values. The effect of strength coefficient and strain hardening behaviour with the sample deformation and barreling effects have been calculated.

The fuselage type of a fighter greatly influences the aerodynamic characteristic especially in vortex generating which determines the agility and maneuverability. This paper elucidates the study of the vortex dynamics of a fighter with a birds body type fuselage (BBTF), at constant canard deflection angle, using computational fluid dynamics (CFD). The CFD study employs Q-criterion to probe vortices and structured logarithmic grid to maintain the micro-gridding effectiveness of the turbulent boundary layer. The flow visualizations are coupled with shear-wall streamline to produce complete vortex dynamic pattern. The results show that the configurations of the bulky-head aerodynamic, the body, canard and main wing of the BBTF affect vortex core trajectories on the blended-body-main wing and the canard that very close to the surface, which gives higher coefficients of lift, of order 1.40 at a high angle of attacks causing its high agility and maneuverability. The numerical calculations show that there is no negative surface pressure distribution (SPD) on vertical walls near the canard and wings of BBTF fighters. On other design, negative SPD on vertical walls waste a lot of fuel energy, including weakening the lift coefficient.

The need of time is to find a competitive supply chain strategy for Organizations . Lean and Green are the appropriate strategies recommended for competitiveness and sustainability, But the grey area is their integration and impact on each other . Lean Practices being followed since long and are very well recognized and accepted in the Organizations , whereas Green Concept is relatively new and still struggling to find its way in the Industry supply chains . In View of current environmental scenario, there is Huge pressure on Industry to build and adopt process ,favorable to environmental sustainability . Green Supply Chain is the option available but it needs to be linked with Lean Practices to find a competitive edge with benefits to Organization and contribution to nature . This Paper aims to identify key practices of Lean & Green Supply Chain strategies and their inter linkages in terms of issues and impacts. The structured analysis approach is adopted to improve performance of Automotive supply chain by integration of Lean and Green Strategies . An Automobile OEM was selected for the study . Data collection and Analysis was done to find out Prevailing Lean and Green Practices in the organization . Research carried out to find out integration scope amongst these practices and add /Implement new Green Practices . Results derived after integration and implementation. An integrated Supply Chain Model developed with benefits of Green and Lean. The Model Provides a route map for developing sustainable Green Supply chains with acceptability and adoptability in Industry.

A series of blends consisting of Red mud(RM) varying from 1.5 to 3 g and Graphene oxide(GO) varying from 0 to 1.5 g to give a total of 3g were prepared. They are used as adsorbents in the treatment of waste water samples from few industries, for effective removal of phosphates, phenols, heavy metals and dyes. The best blend compositions for removal of Phosphates, Heavy metals & Phenols, Dyes were 2.5:0.5; 2.75:0.25; 2.1:0.9 respectively. The percentage removal of Phosphates & Nickel was 100 % while the removal of Zn varied from 58 to 68 % for the refinery samples studied. The contact time required for 95 % removal of phenols was just 4 hrs. In the studied dyes, Congo red showed maximum adsorption of 10 mg/g.

The research mainly focused on optimizing the multi responses i.e. tensile strength, impact Strength and elongation while conducting the experiments on Friction Stir Welding process. With the help of trial experiments and based on the literature, the following input parameters i.e. tool rotational speed, weld speed and tilt angle are identified as the most influencing parameters and are used in the current study. Experiments are carried out using the Taguchi L9 design. Al7075-T651 and Al6082-T651 aluminium alloys are taken as the parent materials. The tool used is Taper threaded tool. This FSW uses no filler metal to join two work pieces. A study has been made while selecting the tool type. Detailed influences are discussed in the paper. The Grey relational analysis method is applied to optimize the output responses. Further plots are drawn between the input process parameters and the output responses. Overall the method finds best in multi-response optimization of FSW process.

Crude castor oil seems to have many industrial applications. However, its Iodine value range <100 (82 - 88 gI2/100g) makes it not applicable in the paint industries since it is considered a non-drying oil. Experimentally, dehydration of its fatty oil is the only way of converting its non- drying attributes into a drying one. This process involves heating the oil to a temperature of 250OC in the presence of catalyst such as sulphuric acids, phosphoric acids, clays and metal oxides under an inert, atmospheric or vacuum condition. Albeit a lot of research has been carried out on the different catalyst used in dehydrating castor oil and the effect of catalyst percentage variation in an overall continuous process, this study was however on the effect of sodium bisulphate catalyst on a batch process. The change in the physiochemical properties (hydroxyl, viscosity and iodine value) with respect to time and temperature was considered. In the course of this study, Sodium bisulfate and Sodium bisulfite is chosen as the catalyst and anti-polymerization agent respectively. The dehydration of castor oil in the presence of catalyst speeds up the rate at which the maximum dehydration is obtained (60min) but at the same time, speeds up the rate of polymerization. The Iodine value rapidly decreases until it attains maximum dehydration wherein polymerization (hardening of oil) takes place simultaneously. However, dehydration reaction without catalyst takes longer time to reach maximum dehydration (180 min), but does not readily polymerize when maximum dehydration is reached

This study applied diesel oil, and oil from two non-edible plant seeds which are Hura crepitans and Calophyllum inophyllum. These non-edible oils were extracted from their seeds using the soxhlet extractor and used in the oil-in-water emulsion mud. Mud lubricity tester was used to determine the torque, coefficient of friction, and mud lubricity coefficients were calculated at different revolutions per minute and concentrations of the oil. The rheological properties of the mud were also tested. The results obtained from the experiment showed that Hura crepitans in water-based mud have the highest mud lubricity coefficient, and next is oil from Calophyllum inophyllum. It was also discovered that diesel oil in the water-based mud has a negative effect on the coefficient of friction, the mud formulated with the plant oils has the lowest volume of fluid loss when compared to ordinary water-based mud and that of the diesel oil. The mud formulated with oil from Hura crepitans has relatively higher plastic viscosity most especially at concentrations above 15 ml, and the addition of Calophyllum inophyllum has the highest yield point values and gel strength. The plant oils most especially Calophyllum inophyllum used in mud formulation reveals lower pullout force and greater potential for minimizing differential pipe sticking.

Marine fisheries is one of the dominant agricultural sub-sectors in Malind District, Merauke Regency. An activity related to fisheries has parties who play a role in both the production process and its distribution. In an effort to increase income at the level of local fishermen in the Malind District of Merauke Regency, a study of channel analysis and marketing efficiency for the catch of local fishermen is needed. The objectives to be achieved from this research are Analyzing channels and the efficiency of marketing the catch of marine products of local fishermen in Malind District, Merauke Regency. The method used in this study is Survey. The marketing output data for local nelyan sea catches in the Malind District of Merauke Regency in this study are very descriptive by using the Participatoriy Rut Appraisal (PRA) method with the Snow Ball sampling approach in which local fishermen are the starting point. The sample in this study were 30 fishermen, 3 collectors, 3 wholesalers, 3 retailers through the snowball sampling technique. Data were analyzed descriptively against distribution patterns and margins of capture fish marketing. The results of the study are in the Malind District there are three distribution patterns, namely first; fishermen to collectors to wholesalers to retailers to consumers; second, the fishermen to the traders to the retailers to consumers; third, fishermen to large traders to retailers to consumers. The lowest marketing margin occurs in channel III, which is Rp.3,120 and Farmer value highest share of 88.90%, effective marketing channel efficiency occurs on channel III with farmer value highest share compared to marketing channels I and II.

The incessant failure of aluminium alloy in service is one of the major obstacle facing industrialist and manufacturers. The urgent desire for low density, cheaper and super workability of material necessitate changing from aluminium alloy to composite materials, Aluminium metal matrix composite has been produced as a result of high specific strength, cheaper rate and resistance to wear which found major structural application in aerospace and automotive industry. Stir casting technique has been used because it is simple, flexible and applied in production of large quantity of materials. Agricultural and agro industrial waste products which are cheaper and easily available like rice husk ask, flyash, bagasse ash and graphite has been utilized as reinforcements in aluminium matrix. This paper presents a review on improvement of aluminium alloy for engineering application. The study shows that inclusion of agro industrial waste improved mechanical properties of the developed material

The present study investigated the biocorrosion behaviour of Stainless steel 316L (SS 316L) and mild steel coupons exposed to a medium containing slime producing bacteria, Escherichia coli (E.coli). Corrosion analysis was performed to observe the progression of corrosion process on tested steels induced by E.coli and its metabolite activity for 7 days. The findings revealed that both SS 316L and mild steel experienced severe pitting corrosion. The colonization of E.coli and secretion of exopolymeric substances or slime have accelerated corrosion process on mild steel surface and damaged the passivation layer on SS 316L. As a result, the tested mild steel specimen exhibited 25% higher corrosion rate compared to that of the SS 316L

that article achieves the activity of Doubly fed inducement generator (DFIG) for a coordinated strenuous station susceptibility the use of grid-side converter (GSC). The basic obligation i of this study nventions at the management of (GSC) until provisioning harmonicsalso to its skid intensity transport. The rotor-side converter (RSC) is utilized to achieving greatest vitality displacement and to provide involved receptive capacity to (DFIG). This wind energy conversion system (WECS) runs accordingly a static compensator (STATCOM)to giving sounds with high hand, while breeze turbine is during stoppage situation.Regulator computation of each GSC plus RSC are during group. A model suggested (DFIG) built absolutely (WECS) is built up the use of a digital sign processor (DSP). The suggested (DFIG)- established (WECS) is reproduced utilizing MATLAB/Simulink.Recreated marks are accepted with trial next impacts produced (DFIG) to several, various workable event for symbol, factor breeze rapidity plus unbalanced / alone phase loads

Three-Dimensional, Unsteady Laminar Flow through Sudden Expansion Channel has been studied numerically. Used rectangular and symmetric sudden expansions (ER=H/h) with different aspect ratio (AR=Wch/h). CFD software ANSYS FLUENT 15.0 was developed to solve the Naviar-Stokes equation by used the finite volume method to transfer these equations from differential form to algebraic form which can be solved by SIMPLE algorithm procedure. The results obtained were represented on graphs and discussed the suitable parameters like: pressure drop, velocity recirculation region and skin fraction coefficient. From the results founded the time steady state increase with the increasing of the aspect ratio and this effects become more clearly at the high of Reynolds numbers and the aspect ratio, so founded high effect of the time on the hydrodynamic parameters, behavior of the flow, recirculation region and the velocity profile, and this effect was clearly at high of Reynolds numbers. Also observed the increasing both the Reynolds numbers and aspect ratio leaded to increase the recirculation zone and streamwise velocity, the pressure drop increase with Reynolds number increase but reduce with increasing the aspect ratio, the results of the numerical study were compared with the other research and obtained acceptable convergence

The reckless use of fossil fuels causes a lot of problems such as depletion of fossil fuels, rising oil prices, air pollution, and fine dust. 27% of the world major energy sources are used for transportation, and most of the transportation fuels are used as fossil fuels. Biofuels, which are attracting attention as a clean alternative energy source, are most actively applied to transportation fuels because of their environmentfriendly characteristics, but they have problems in fuel production cost and engine technology development. In order to solve these problems, research trends in domestic and overseas researches and engine dedicated to biofuels are described. In addition, the development of technologies that can reduce fuel production costs and the establishment and operation of policies for more stable fuel supply are required more flexibly to cope with sudden environmental changes

This study aims to evaluate the implementation of training program for warehouse manager candidates within the warehouse receipt system scheme conducted by the Commodity Futures Trading Regulatory Agency (Coftra) in Indonesia. This research is an evaluative research using the CIPP model of Stuffle Beam (Context, Input, Process, Product), supported by questionnaires (closed and open statements / questions), observation, and interviews. Evaluation on context, input, and process, the results show that the program is in a good category for these three componets, with some elements needing improvement. While for product evaluation the results for this component are in a very good category, so it needs to be maintained. In terms of outcomes which are part of the product component, the results of the training provide a good impact of implementing warehouse management system, with warehouse operational license..

This paper intends to present the System Dynamics (SD) as a novel method to simulate the thrust force developed during drilling of GFRP composites. Good quality holes are extremely fundamental so as to accomplish equally good joints amid creation of components prepared from composite for better execution. Since the nature of a drilled hole is subject to material properties and machining conditions, it is important to think about the impacts of these factors on the nature of hole obtained. In the present work, the machining parameters thickness of the material, drill point angle, drill size, drill speed and feed rate are selected to evaluate their effect on the quality of the hole. Past works uncover the fact that the damage caused to the drilled hole is primarily due to the thrust force. Consequently it is fundamental to limit the thrust force so as to accomplish better quality of the drilled hole. The SD simulation model was implemented through a causal loop diagram. A mathematical equation used in the simulation was developed utilizing the Design of Experiments (DOE) technique. VENSIM programming was utilized to create and run the SD model. The SD simulation results were compared with Artificial Neural Networks (ANN) results, Response Surface Methodoly (RSM) results and the experimental results. A decent agreement was seen between SD, ANN and RSM results.

The success of acountry always depends on the potential human resources harnessed to achievepersonal, organisational and national goals. In the case of a developing nation, public enterprises play a vital role in globalisation and face alot of constraints in competing with multinational companies.So, there is need of a sound HRD climate.This influenced the researcher to conduct “A study on HRD Climate practised in select Public Sector Manufacturing and Processing Industries in Karnataka”. Thestudy is focussed on the HRD climate in general and a select public sector undertakings in Karnataka in particularto analyse various factors influencing a conducive working climate and employee-satisfaction in select public sector undertakings. It also analyses the existing HRD climate practised in the select public sector units and their contribution to productivity, by identifying the prevailing problems in implementing HRD climate and suggesting better strategies for implementing HRD climate toreach optimum productivity

This article aims to determine management support, the quality of accounting information systems and the quality of accounting information. The method used in this research is descriptive and verification method (verificative research). Based on the results of testing the hypothesis by using Structural Equation Modeling (SEM) with the Partial Least Square - Path Modeling approach with the help of XL-STAT software, there is a relationship between top management support variables and the quality of accounting information systems reflected in the value of 1.0247. Furthermore, the quality of accounting information systems has an impact on the quality of accounting information reflected in the value of 0.8104. The results of this test prove that top management support influences the quality of accounting information systems and has an impact on the quality of accounting information

Previous studies on business model innovation were considered to have several problems specifically related to the clarity of the construct and gaps with antecedents, contingency and results. Most researches focused on variables outside the organization as antecedents of business model innovation. This study examines variables that are within the organization, namely transformational leadership, innovation culture and information technology as antecedents of business model innovation and measures their impact on firm performance. The study was conducted on 196 firms in the creative industry in Indonesia. Structural Equation Model was used to analyse statistical data. The result shows that transformational leadership, innovation culture and information technology do not directly impact firm performance. They need to be mediated by business model innovation

The research examined dormitory thermal comfort after it was treated with vertically hydroponics vegetable garden on the West side (the side faces the sun) of the building. The garden was structured vertically at 60 degrees slope by using loose system which enabled all vegetables to be directly illuminated by the sun. Measurement of thermal comfort of the building was carried out by opening all openings (doors and windows) in a dormitory in Rungkut Menanggal Harapan Surabaya. Objective research involved dry air temperature, relative humidity, wind speed and sun radiation before and after garden installation, while subjective research involved questions about thermal environment perception. The research result revealed that during dry season air temperature in the rooms decreased 0,8 ?C, while CO2 level went down 2.56 ppm and O2 level went up 0.6 %. Thermal comfort or neutral temperature after the hydroponics installation was above ASHRAE standard comfort zone which is 55. Subjectively it was revealed that the tenants experienced higher thermal comfort compared to PMV (Predicted Mean Votes) prediction..

In this study, the chemical compositions of waste okra stalks and rice husks were investigated and their use, evaluated as raw materials for the Kraft pulping process. Pulp yield, Consistency and 1% NaOH solubility were determined. Both raw materials were dried, and the chemical compositions obtained prior to cooking/digestion in a 15 L autoclave. While properties such as moisture content, 1% NaOH solubility, extractives and hot water solubility seem to favour raw rice husk, the pulp yield was very low (25.7%) as against the pulp yield from okra (41.2%). The high ash content and Silicates/Silica in rice husk (6.1 – 45.82% and 20480ppm respectively) will pose problems in the liquor recovery stage in the process. Therefore, the okra stalk is a better raw material for pulp and paper making than the rice husk. From this study, waste okra stalk is found to possess some economic value and can no longer be left to become a nuisance to the environment

This paper presents the results of an experimental investigation carried out to optimize the mix proportions of the concrete by the Taguchi method of parameter design. The concrete mix design is done by the L9 orthogonal array that is 34. When a new material is used in the concrete all the mix variables are taken into account so that it may cost so much, it means more need for money, material, personnel and time. In order to reduce the number of mix combination in concrete, the Taguchi method is used. In this project the cement sand and aggregate are partially replaced by cement as fly ash, river sand as M-sand and the compression values are taken and the value is compared with the conventional concrete special concrete compression value is compared with the conventional concrete and S/N value is taken from the compression value and the comparison of the values are done. In order to attain good strength and to avoid cracks, sisal fiber is added in the concrete with a percentage of (1, 1.5, and 2).

The present work deals with a simple approach which predicts the optimum setting of process parameters of drilling operation on Polymer Based Glass Fiber (PBGF) composite. The process parameters selected are drill angle (DA), Drill diameter (DD), Material Thickness (MT), Speed (N) and Feed (f). The output parameters are Thrust, Torque, Surface Roughness and Delamination. Three levels of each input parameters are considered. Taguchi’s L27 array is used to set the process parameters. Gray relational analysis (GRA) is used to find the optimum value of process parameters. Conduction of ANOVA on GRA shown the significance of each factor on the process output. A conformation test conducted revealed that the setting of parameters ensures optimum output.

This paper presents an artificial neural network (ANN) algorithm developed and trained to predict the performance of a solar powered adiabatic packed tower regenerator using LiBr desiccant. A reinforced technique of supervised learning based on the error correction principle rule coupled with the perceptron convergence theorem was used. The input parameters to the algorithm were temperature, flow rates and humidity ratio of both air and desiccant fluid and their respective outputs used to determine regenerator effectiveness and moisture removal rate. The optimum performance of the ANN algorithm was shown by structures 6-4-4-1 and 6-14-1 for moisture removal rate (MRR) and effectiveness respectively. Upon comparison, the predicted and experimental MRR profiles aligned perfectly during training with a maximum and mean difference of 0.18 g/s and 0.11 g/s. The regenerator effectiveness profiles also agreed well with a few negligible disparities with a mean and maximum difference of 0.6 % and 1 %. With respect to humidity ratio, the algorithm predicted the experimental MRR values to maximum and mean accuracies of 0.0925 % and - 0.012 %. The maximum and mean accuracies of 4.14 % and 0.53 % were realized in the prediction of experimental effectiveness by the neural network algorithm. The ANN model precisely predicted the experimental MRR with respect to inlet desiccant temperature with an average deviation of -0.5290 % while the highest difference was 3.496 % between predicted and measured temperature. With change in inlet desiccant temperature, the ANN predicted and experimental values revealed maximum and mean deviations of 2.61 % and 0.21 %. While the regenerator moisture removal rate varied proportionally with the air temperature, the predicted MRR values matched perfectly with the measured data with a mean and highest difference of -0.12 % and 3.2 %. In all the aforementioned cases, the mean and maximum differences between the ANN model and experimental values were way below the allowable limit of 5 % hence the algorithm was deemed to be successful and could find use in air conditioning scenarios

Submarine propeller need some unique criteria can give bigger amount of thrust with noiseless. The submarine propeller design must able to produce the high thrust value, low pressure value, and smooth propeller streamline. This study investigates and compares some type of propeller that are B – 7 series, B – 8 series, Au – 7 Outline gawn series, and Au – 8 outline gawn series with some different parameters, that is blade diameter, number of blade, skew angle and pitch. From some models that have been compared, the best propeller is B – 8 series on 500 rpm with thrust value 25481 N, torque value 3927 Nm, average value pressure about 10608,92 Pa, and turbulance flow with average value velocity stream under 14,33 m/s.

Today it is generally recognized that the use of mineral fillers is one of significant reserves to enhance the efficiency of binders in cost as well as to improve the technical properties of cement composites. Mineral filler corresponding to the Portland cement fineness often replaces part of Portland cement. This technique allows saving Portland cement without reducing significantly the concrete strength. The ability to obtain ultra-fine mineral fillers from industrial by-products with high specific surface area appears with grinding technology development. Two types of ultra-fine ground granulated blast furnace slag with average grain size equal to 4.5 µm were obtained using modern grinding equipment such as centrifugal-elliptical mill and centrifugal dynamic classifier. Water-reducing effects of superplasticizer in Portland cement-slag compositions depending on types, quantity and fineness of slags as well as depending on ?3? and R2? amounts in Portland cement clinker were studied. The results of reduction of binder amount per 1 kg of superplasticizer are presented and analyzed.

One of the effective farm practices of moisture accumulation is the pre-seed harrowing in early spring. A rotary prickle chain tillage tools are the most suitable for this agricultural practice. However, the process of their interaction with the soil has not been drawn a research attention. Hence, this research was aimed to field investigation of the performance of the developed rotary prickle chain tillage tool for the pre-seed harrowing. In this paper the field performance of the developed tillage tool in terms of the work quality and specific draught resistance are presented. The obtained data allowed us to determine the parameters and operation modes of the developed tillage tool under which the required quality is provided. The research results will be used in the development of the implement for the pre-seed harrowing.

The turbulent heat transfer and friction inside a corrugated square duct inserted with various baffles geometries have been studied experimentally. Five types of baffles (flat, rectangular, semicircular, triangular and trapezoidal) are attached on top and bottom walls of the duct. The effects of duct wavy surface, baffle geometry, baffle position and flow Reynolds number are examined. Air is used as the working fluid with Reynolds number ranged from 3442.6 to 17213.19 under constant wall heat flux. Experimental results show obtained for average Nusselt numbers and friction factor. The results indicate that the trapezoidal baffled geometry provides a higher thermal performance than the other type baffled one. The present work showed that the highest thermal performance factor under the same pumping power obtained from the experiments, is about 2.26 times more than that of plain duct. Also, it is found that the thermal performance of the baffles attach on the bottom wall of the duct is higher than the other baffles attach on the top

Canard fighters generally configured with wing canard-deltas and would generate an airflow phenomenon producing vortex cores and lifts. The lift distribution would stall at a high angle of attack (AoA). This study investigated the vortex dynamic of wing canard delta configurations of the Saab JAS Gripen C-like model which create different wing planform than other fighters. The slotted leading edge of the Gripen would develop a strong vortex core on the outer wing, on the same direction with the spin of wing vortex; the outer core would drag the inner vortex core and strengthened. Consequently, the vortex core streamlined in a leading edge of the wing would begin to detach, resulting rolled-up vortices in the wing leading edge followed by a solid laminar stream which tends to curl out. The trailing edge of the wing tended to laminarize backward. The result would be a negative surface pressure on the leading edge above the canard and on the wing which causes more negative surface pressures. An increase in AoA will generate a closer vortex breakdown location to the wing leading edge. The location was calculated as the ratio of the axial velocity value tofree velocity (U/U8) at a value of 0.1. As the AoA increased, the vortex breakdown location moved forwards, upwards, and moved away from the fuselage.

The result of theoretical research is the established spreading efforts during deformation of a cotton layer by the cleaners blades and the analyzed shapes of the deformed layer of cotton. We estimated the elastic characteristics of raw cotton and calculated spreading efforts. To determine the numerical values for the pressure forces at which a blade acts on the flow of raw cotton, for a coefficient k of the generalized properties of a material, the magnitude ?? for raw cotton was adopted in a range of 0.25-0.3. Experiments have shown that a layer of raw cotton with a thickness from 170 to 380 mm and a width of 700 mm was loaded with the force of 30-100 N concentrated along the line. Based on our calculations, it was established that 38.89 % of the raw cotton cleaning time accounts for the operation of a single blade of the roller. The result of our experimental and theoretical research is the data that make it possible to organize effective operation of cleaning machines in the cotton cleaning industry.

Classification is a method that process related categories used to group data according to it are similarities. High dimensional data used in the classification process sometimes makes a classification process not optimize because there are huge amounts of otherwise meaningless data. in this paper, we try to classify profit agent from PT.XYZ and find the best feature that has a major impact to profit agent. Feature selection is one of the methods that can optimize the dataset for the classification process. in this paper we applied a feature selection based on graph method, graph method identifies the most important nodes that are interrelated with neighbors nodes. Eigenvector centrality is a method that estimates the importance of features to its neighbors, using Eigenvector centrality will ranking central nodes as candidate features that used for classification method and find the best feature for classifying Data Agent. Support Vector Machines (SVM) is a method that will be used whether the approach using Feature Selection with Eigenvalue Centrality will further optimize the accuracy of the classification.

Continuous functions play a dominant role in analysis and homotopy theory. They have applications to image processing, signal processing, information, statistics, engineering and technology. Recently topologists studied the continuous like functions between two different topological structures. For example, semi continuity between a topological structure, a-continuity between a topology and an a-topology. Nithyanantha Jothi and Thangavelu introduced the concept of binary topology in 2011. Recently the authors extended the notion of binary topology to n-ary topology where n?1 an integer. In this paper continuous like functions are defined between a topological and an n-ary topological structures and their basic properties are studied.

It has been accepted that Mobile Learning has provided innovative opportunities for both teachers and students, as it produces an active learning atmosphere anywhere and anytime. Mobile learning model can be resourcefully improvised by adding the cloud technology into it. This paper explores the effect of cloud based mobile learning on education competencies of engineering students. The main intention is to test whether cloud based mobile learning has a positive effect on student’s performance by investigating the effect of this innovative teaching system on course outcomes. The results showed that introduction of cloud based mobile learning in studying an engineering subject is productive and does has an positive impact on education competencies of engineering students. The results particularly indicate that technology underneath cloud based mobile learning can be effectively used in the study of engineering subjects resulting in superior attainment of course outcomes

Though battery use increases more and more and the capacity is increased as a result of short battery use time, research and development is in progress with the purpose of reducing the charging time and increasing the charging speed due to the physical limitations and the limitations on technology development. High speed chargers and high frequency battery chargers used with AC power utilize two conversion circuit designing methods, and the efficiency and performance of chargers have been enhanced by using additional PFC, filter, safety circuit, etc. If a lead-acid battery is charged with a slow charger for general battery, sulfuric acid accumulates as a by-product of the chemical reaction, which leads to battery performance deterioration. In order to charge such a battery turning it into the state of initial performance, a charger which employs high frequency wave is used to prevent performance deterioration. As it is also important to check the battery state at this time to ensure quick charging and prevent performance deterioration, we intend to look into various methods of checking the battery state, changes in the charger efficiency, and the difference between a high frequency battery charger and a general slow battery charger

This article is devoted to the modernization of handicrafts manufactured to measure the stress in the ground (messdose). Today, when designing buildings and structures, an important task is to determine the amount of expected precipitation. The calculated values are not always objective, especially in the conditions of Western Siberia, where weak organic-mineral soils are common. Based on the experience of the introduction of sensors measuring the voltage in the ground, the author identified a number of factors by which they most likely fail. According to approximate calculations, until the end of the average natural experiment, about 25% of the messdose remain operable. The author proposed options for upgrading sensors to minimize the risks of their failure. The main causes of sensor failure: contact breakdown, depressurization, short circuit. They are eliminated by inserting fiberglass boards and two-stage sealing into the sensor body. The body of the sensors was made of titanium. Cyanoacrylate glue was used for sticking the strain gauges onto the body of the messdose. Sealing was performed with epoxy resin. As a signal cable used 4- core cable KSPV. Calibration of the sensors was carried out in an aerostatic tank. Upgraded sensors were tested during a laboratory experiment. The author tested a sample of weak organic soil in compression conditions. No total pressure sensor has failed. The convergence of the sensor readings with the load applied to the sample is very high. The measurement error did not exceed 10%. The author also attempted to make handicraft sensors to measure pore pressures in the ground, but during the implementation they all failed.

To assess the clinical significance of electrophysiological, functional, and morphometric studies of the optic nerve in patients with serous meningitis during the recovery period. Congestive fundus changes during the follow-up observation period in patients with serous meningitis were diagnosed more often 19.4% (6) compared with changes in the fundus in the acute period 13% (4)). Analysis of perimetric indices revealed a significant decrease in photosensitivity in 80% (8) patients with serous meningitis during the recovery period compared with the control group. According to optical coherence tomography in patients with serous meningitis, significant changes were detected in 90% (9) patients. According to the data of visual evoked potentials and electroretinography in patients with serous meningitis, a deterioration in visual afferentation was detected

This article presents a study on the investigation of the effects of the input parameters on the cutting speed in machining 90CrSi tool steel using wire cut electrical discharge machining (EDM). In this work, experiments were performed with factorial design with a total of 32 experimental runs. In addition, the input factors including the pulse on time, the pulse off time, the cutting voltage, the server voltage, the wire feed and the feed speed were carefully selected for the investigation. The effects of this factors on the cutting speed were learned by analysing variance. Moreover, a regression equation to determine the cutting speed was introduced.

In India diversity spreads across different geographic, cultural and social dimensions. The present study is an endeavour to explore the variance in the relationship midst ecology, policing and occupational stress in the police commissionrates of two cities of eastern India. This is an exploratory study conducted on police personnel of police commissionerates of two cities namely, Bhubaneswar and Guwahati. The study is a humble attempt to compare the impact of physical factors and non-physical factors as elements of stress in the lives of police personnel across the two geographically diverse cities. Generally, police personnel have always been subjected to extreme stress and strain relating to their work environment. Owing to the erratic work schedule, the police have experienced stress in varied garbs. A stressful work environment can be the result of poor salary, increasing workload, less scope of professional development and excessive work hours which ultimately affects policing. Further there is also a sense of guilt for neglecting private life. The immediate effect is ailments or life style diseases like high blood pressure, diabetes, obesity and lack of concentration. In this study, out of the two cities, one is developed coupled with cosmopolitan culture, known as an educational hub, and has transitional population. The other is a developing one, amidst hills, shares international borders, and has an active tourism these factors affect policing. The experiences of occupational stress in the physical environments is different in the two cities, whereas in the non-physical environment the experiences are similar. Everything lies in the discernment, if one recognizes the situation to be tricky they will definitely suffer from the same. It is fact that either one reacts or responds.

There are several electric blenders available in the market today which uses electric motor to drive a blade in order to blend food items, but product availability and reliability are important factors for sustainability. A human-power blender uses alternative power generation sources to operate the blender. Having highlighted areas of possible applications of human powered machines, the aim of this work is to design a manually operated blender which has an efficient operation. In this design, the electrical components of a typical blender are replaced by a gear train system designed to multiply human efforts for maximum efficiency. The driving mechanisms of this blender are gears and shafts which were cast and machined respectively. When tested, the blades of the blender were able to achieve speeds that were 8 times more than the input speed.

Inspiring phenomenal English songs have a great contribution to develop, improve, and increase listening skills. This study aims to analyze the effect of inspiring phenomenal songs to develop students’ listening skill. In doing it, this study used the descriptive qualitative as approach to get and process the data. Implementing research, it is done in three stages, pre-listening, whilst-listening, and post-listening. The participants were students native Papua who study in boarding school. Totaling were 40 students. The result showed that inspiring phenomenal English songs can raise students’ motivation, vocabulary, cognitive, linguistics, affective, and makes classroom’s atmosphere more comfortable free of boredom. It is implied to be a reference media in developing students’ interest in listening skills which are stating in boarding schools, in particularly.

Conflict is ubiquitous irrespective of business, society and country. The nature of conflict management strategies followed by managers is partly influenced by the context, personal characteristics, cultural and family background. But conflict has different dimensions. With an objective of spreading higher education in Nigeria at present 75 private universities are working. Most of the universities try to follow a structured organizational system as competition is there. As a result, diagnostic process requires different approaches depending on context. It is against this that the study examined espoused art of conflict management styles and engagement of academic staff. For primary data, copies of questionnaire were distributed to various categories of academic staff of different private universities. Besides that, a structured questionnaire (see appendix-1) has been used. A scale of preference (1 to 5) has been used for the close-ended questions. The analyses were done through the use of the SMART Partial Least Square (PLS). In foremost cases the top management of the private universities is found to use the collaborating style with contingency leadership approach. The collaborative approach helps them to identify a common ground to solve the problem. This common ground helps to build an atmosphere where the parties involved in conflict gain a sense of victory. The emerging leaders and top managers in this sector should follow these strategies to become successful. A further research could be conducted with a same view in the public universities of Nigeria to improve the conflict situation of these universities.

This paper examined the role of dynamic capability as a moderator in explaining knowledge creation processes and performance of Professional and TechnologyDriven Firms. The role of four ontological dimensions (socialization, externalization, combination and internalization) of knowledge creation in a spiral model were explored. A total of 424 out of 450 members of the sampled firms participated, representing 94% response rate. The information was acquired through the use of an organized questionnaire while the participant targets include managers, administrators, supervisors, and other classes of employees who were entreated to honestly answer items in the questionnaire. The study evaluated construct test validity (measurement) and structural model to establish the factor structure and degree of relationship of a number of observed variables. Our results indicate that ability to creatively combine resources and competencies has significantly helped sampled firms to create new knowledge and improving such knowledge in offering greater value to satisfy customers’ requirements and enhance performance outcomes.

A systematic and planned technology development of rural poultry production into small commercial units holds a tremendous potential for growth in rural areas, especially owing to consumer preference for indigenous chicken, egg and meat. Though poultry development in Nigeria has taken a quantum leap in the last two decades, the growth has been mainly restricted to commercial poultry. Rural poultry production can generate income in increasing levels, employment opportunities to small holders and can also bring about desired socio-economic changes in rural areas which are vital for rural development and rural prosperity. Hence, there is the need to strengthen rural women’s capacity for increased technology development in poultry production for increase production and profitability

Young people who have the strength required to take up agriculture shy-away from the work, leaving it to an ageing and dying population of old farmers, the continuation of this will force us to wonder what the fate of agriculture would be in Nigeria. Agricultural development specialists and policymakers around the world are concerned with the fact that young people are not interested in agriculture, as agriculture is very crucial to the current economic status of Nigeria. A sample of 384 respondents from the population was drawn using multistage sampling method and 40 in-depth interviews. Five research questions were raised in the study and two hypotheses were generated and tested (at 0.05 level of significance) using the chisquare inferential statistical method. Data were collected using a well-structured questionnaire; the research design was a descriptive survey. While the theories used for this research are the social exchange and rational choice theory. The major finding of the research showed there is no significant relationship between the sociodemographic characteristics of young people and their level of involvement in farm practice, while there was a significant relationship between the benefits attached to farm practice and the level of students’ involvement.

Since 2010, tourism promoting policies have been implemented to drive economic growth and also economic development in Thailand. Government allocated a significant budget to promote tourism sector. As a result, tourism revenues have also been increased significantly. The increasing in the number of visitors induced the domestic final demand and the output in tourism related sectors. However, the different group of visitors will response to the tourism promoting policy in the different ways. Following the Johansen system cointegration, the results indicate that the tourism revenue in each group of visitors was response to the difference set of macroeconomic factors. The estimated normalized cointegration vectors confirm the positive relationship between government budget for promoting tourism and tourism revenue for all groups of visitors. For the sectoral analysis, tourism revenue, naturally, induces final demand and initiates output only in a few sectors. According to the results, the policies are (1) continuously promote tourism sectors in term of government budget, (2) set up a specific policy for each group of visitors and (3) income re-distribution to the sector which are not related to tourism sector

The current study examined the impact of foreign trade on agricultural output in Nigeria based on data sourced from 1981 to 2018 by employing a number of estimation techniques such as Cobb-Douglas, unit root testing, autoregressive distributed lag among others within the context of two profound theories of exchange rate - the vent – for surplus theory of international trade; factor endowments theory. Our study observed that foreign trade exerts negatively on agricultural output. Our results have some empirical implications.

Knowledge Management is one important component of an organization in determining the internal development of the organization. Knowledge Management enables organizations to collect, store, distribute, and reuse the knowledge that a company assets have. Likewise in the area of education, knowledge management has now evolved to be easier to deploy. Many colleges have tried to figure out how to use social computing to collaborate with educators and students in knowledge management. The most frequent problem of knowledge management is the willingness of the user to use or distribute it. The collaboration and communication aspects of social computing or web 2.0 is the basic successful use of knowledge management. This paper conducted an analysis about the best tools and technology that can be adopt as social knowledge management system for lecturer in doing collaboration among units and other lecturers. As the result, one existing technology found suitable for lecturers to be used

The objective of this research was to develop a conceptual framework of organizational support and self-support for innovation capability of employees in the Thai automotive industry. The study by reviewing related literature and theories and holding a small group meeting with experts in the automotive industry to review the conceptual framework obtained from this study. This research is only part of the main research that we are currently studying. The results from this research have led to the conceptual framework and can identify the independent factors, which include (1) organizational support that consists of the second-order factors, i.e. knowledge from a closed system and knowledge from an open system, and (2) self-support that consists of the second-order factors, i.e. knowledge from self-practice and knowledge from self-search, as well as can identify the mediator, which includes one factor, i.e. knowledge absorption, and the dependent factor, i.e. innovation capability. The results obtained from this research will be used to study the population in order to collect data and extend results of the next research.

This study aims to analyze the relationship between public relations and sales promotion to the decision-making process of buying refill water. The population and sample in this study were 41 respondents. Observations, questionnaires, interviews, data analysis techniques using multiple regression analysis. Then the data is processed using SPPS version 23. From the results of the analysis of the research obtained, it shows that public relations has a significant effect on the decision-making process of buying refill water, which is proven by a significant value of 0,000 <0.05. Sales promotion has a significant effect on the decision-making process of buying omega water brand refill water, this is evidenced by a significant value of 0.002 <0.05. Public relations and sales promotions on the decision-making process of buying refilled water from the omega water Merauke brand. This is evidenced by a significant value of 0,000 <0,05. The adjusted r square number of 53.2% shows that the influence of public relations and sales promotions on the decision-making process buys refill water, while 46.8% is explained by other variables not examined in this study.

Marine fisheries is one of the dominant agricultural sub-sectors in Malind District, Merauke Regency. An activity related to fisheries has parties who play a role in both the production process and its distribution. In an effort to increase income at the level of local fishermen in the Malind District of Merauke Regency, a study of channel analysis and marketing efficiency for the catch of local fishermen is needed. The objectives to be achieved from this research are Analyzing channels and the efficiency of marketing the catch of marine products of local fishermen in Malind District, Merauke Regency. The method used in this study is Survey. The marketing output data for local nelyan sea catches in the Malind District of Merauke Regency in this study are very descriptive by using the Participatoriy Rut Appraisal (PRA) method with the Snow Ball sampling approach in which local fishermen are the starting point. The sample in this study were 30 fishermen, 3 collectors, 3 wholesalers, 3 retailers through the snowball sampling technique. Data were analyzed descriptively against distribution patterns and margins of capture fish marketing. The results of the study are in the Malind District there are three distribution patterns, namely first; fishermen to collectors to wholesalers to retailers to consumers; second, the fishermen to the traders to the retailers to consumers; third, fishermen to large traders to retailers to consumers. The lowest marketing margin occurs in channel III, which is Rp.3,120 and Farmer value highest share of 88.90%, effective marketing channel efficiency occurs on channel III with farmer value highest share compared to marketing channels I and II.

Self-discipline as one of the non-academic factors that contribute to determining academics achievement. One of efforts to establish the students self-discipline is through group counselling. Counselling groups that are used Cognitive Modelling Self-Instructional Training towards self-discipline students. This research used quasiexperiment design with Nonrandomized Pre-Test Post-Test Control Group Design Experiment. The subjects of this study were 16 students of Grade VIII of State Junior High School Ploso Jombang with low self-discipline then divided into two groups of experimental group and control group. The experimental group was given Cognitive Modelling with Self-Instructional Training, whereas for the control group was given conventional method. The collected data used the Self Discipline Scale which has been tested using the construct validity as well as the reliability test. Data were analyzed through the Analysis of Covariance (ANCOVA). The results of study that there was an effect of cognitive Modelling Self-Instructional Training towards students selfdiscipline at the experimental group was higher than in the control group. It was indicated by an increase of self-discipline scale score before and after treatment. So that the giving of the treatment used Cognitive Modelling Self-Instructional Training effects on the increasing students self-discipline at junior high school

Customer relationship management (CRM) is defined as a clear business strategy and is a combination of a range of functions, skills, processes, and technologies that together allow companies to better manage profits with customers as real assets. PT Hasrat Abadi is the official distributor for Toyota and Yamaha vehicles in five regions in Eastern Indonesia. However, PT Hasrat Abadi does not have software that can manage company relationships with customers, and provide fast information to customers for customer satisfaction and increase profits from the company. Making this application uses the RUP (Rational Unified Process) methodology which is gradual with upward progress and iterative (repetitive) to get the appropriate results. Applications can help companies in making a new breakthrough to market their goods and services by reading customer behavior through questionnaires, polling and recording customer activity, this application can help companies to promote the latest products to customers online so they can keep customers even new customers.

Loyalty program(LP) has long become one of the marketing strategies used by the firms to retain their customer and gain their loyalty. The objective of this study is to identify challenge and opportunity in designing LP. Five dimensions associated with designing loyalty programs such as membership, point structure, benefit, communication program, and partnership have been identified. This Systematic review will focus on loyalty programs in hospitality and travel related industry. This paper reviewed 37 articles to explain the important factor in designing LP. Furthermore, technology advances also influence the evolution of the LP. The future direction of LP also identified as a guideline for researcher and practitioner to understand the LP.

Reading comprehension is a very important skill to support the student learning process and is very useful when they are working on test questions. Apart from the importance of understanding reading skills, there are still many students who have not been able to master this skill well. This research is classroom action research (CAR) by applying the Cooperative Integrated Reading and Composition (CIRC) learning model because it has been proven to improve the students reading comprehension skills. This study was carried out with 2 cycles to find out how the implementation and evaluation of learning to read comprehension of the CIRC type cooperative model that can improve comprehension reading skills in class VII A students of SMP Negeri 1 Singkawang. The results of this study were analyzed by quantitative and qualitative analysis. The results of this study cannot be generalized to other subjects. The research results suggest further implementation of the CIRC model into different subjects and problems

This paper aimed to determine factors influencing English communication competency among Malaysian university undergraduates from technology departments at Universiti Tun Hussain Onn Malaysia (UTHM). A survey was administered to a random sample of 102 undergraduates. Factor analysis was applied to determine the underlying dimensions that influence English competency among the students. The findings revealed four critical factors: mother tongue interference, lack of confidence, lack of practice, and home environment. Thus, students need to be encouraged to communicate in English at the university and home to provide wider language practice opportunities to master communication skills in English and perform well in the technology courses

The use of information technology that is aligned with the companys goals will be achieved if supported by a good governance planning system. Therefore, to develop information technology can use the Enterprise Architecture approach as a guideline or blueprint in the development of information technology. The XYZ company is an oil palm plantation company that develops information technology services to support the companys business operations. In order for the purpose of developing XYZ company information technology services in line with the companys vision, mission and objectives, an appropriate framework is needed in preparing strategic planning. This study aims to provide recommendations for designing IT blueprints using the Enterprise Architecture TOGAF framework for the development of information technology that can be applied in XYZ companies

The challenge of climate change results primarily from the global use of fossil fuel. Renewable energy as alternative energy source allows the use of natural sources such as micro-hydro, wind; solar, and biomass that are sustainable to be explored. The increase in the dependence on renewable energy calls for attention which can be solved by the use of energy management. Energy management will provide a consistent and controllable power supply. There is the need for the integration of energy management into the grid planning and design. In this work, Energy management using energy storage is thus considered as one design method for the system to maximize simplicity and increase reliability using HOMER, a conventional simulation tool.

Over the past decade, governments around the world have been trying to take advantage of Big Data technology to improve public services with citizens. The adoption of Big Data has increased in most countries, but at the same time, the rate of successful adoption and management varies from one country to another. A systematic review of the literature (SLR) was carried out to identify the critical success factors (CSF) for the adoption of big data in the government. It includes the critical success factor of the adoption of Big Data in the government in the last 10 years. It presents the general trends that examine 183 journals and numerous literary works related to government operations, the provision of public services, citizen participation, decision making and policies, and governance reform. We selected 90 journals and found 11 classification factors that refer to the successions of a Big Data adoption in the government

This study aims to examine and analyze how the ethics of bureaucrats in public service in the field of land, and detect factors that affect the ethics of public service bureaucrats in the field of land, as well as find effective solutions for the apparatus in enforcing the ethics of public services in accordance with the established moral standards and standard rules. The type of research used is a qualitative approach, in order to know and understand the ethics of bureaucrats by using indicators of equality, equality, loyalty, and responsibility in public services at the Office of the Ministry of Agrarian Affairs and the National Land Agency of North Luwu Regency. Research results show that based on equality, equality, and loyalty and responsibility aspects as an indicator in assessing bureaucrat ethics, the fact that ethics / morale of bureaucrats in the public service in the land sector is still low. Facts on the ground prove that there are still practices that are not commendable in providing services to citizens who need land services. One of the causes of the low ethics of bureaucrats in the function of land service is the moral quality of each personnel of the apparatus itself, in addition to the welfare factor that has not been too supportive to meet the needs and welfare of employees.

In this study, the antimicrobial activity and phytochemical constituents of neem leaves and lemon grass oil extracts were evaluated. Oil extracts of neem leaves and lemon grass were obtained by solvent extraction method using hexane and ethanol. Antimicrobial activity screening of plants’ oil extracts were conducted using agar well diffusion method and the oil extracts were tested against three gram negative bacteria (Pseudomonas aeruginosa, Klebsiella specie, Escherichia coli), one gram positive bacteria (Staphylococcus aureus) and two fungi (Candida albicans, Rhizopus specie). Phytochemical components of the ethanolic oil extracts were anthocyanin and betacyanin; quinones; terpenoids and acid for lemon grass. In addition to other phytochemicals present in lemon grass ethanolic oil extract, neem ethanolic oil extracts tested positive to flavonoids. Lemon grass oil extract shows high activity against Escherichia coli, Staphylococcus aureus and Candida albicans which are representative of the three categories of microorganisms considered. Neem leaves oil extracts have relatively low activity against most of the selected microorganisms.

The purpose of this paper is to develop an approach to analyze and improve business processes of a service supply chain (SSC), through a real case study. Within this framework, the paper suggests an approach based on the DMAIC (Define-MeasureAnalyze-Improve-Control) method of Six Sigma - that combined Business Process Management (BPM), Supply Chain Operations Reference (SCOR), root cause analysis tree diagram, and Characteristics of Smart Supply chain - to improve one chosen business process of the Moroccan retirement supply chain. Based on this case study, the paper shows that the suggested approach identifies the malfunctioning causes for the studied business process, improves its behavior and manages its control. The approach is detailed, and it combines methods which are not complicated, so it can be used by academics and organization managers. More case studies can be used to more thoroughly evaluate the presented approach

The growing concern for safety and infrastructural proliferations in the densely populated urban and suburban areas as well as the quest to preserve the aesthetic values in many modern localities have necessitated the need for underground installations. The underground cabling installations are devoid of faults common to the overhead transmission lines but are associated with certain kinds of faults such as short circuit and open circuit faults. Locating the exact position of any of these kinds of faults is very exhausting, costly and time-consuming because its power distribution system is invisible. Hence, a microcontroller based underground cable fault distance locator powered by Arduino is designed to detect and pinpoint location of faults in underground cable lines. A basic ohm’s law is employed to achieve the variation of current with respect to resistance that determines the position of the fault. This device has a power supply unit, cable unit, control unit, tripping unit and display unit. The power supply unit provides power to the other components. The cable unit consists of a three-phase cabling system with switches between each phase to activate faults. The control unit takes in signals from the cable unit to cause control of tripping unit and display unit. The tripping unit then detects the phase which encounters the fault and the display unit shows the fault characteristics on the LCD. The distance to the fault is displayed, alongside the phase which encounters the fault for easy clearance.

This work represents the results of dual production technologies introduction at Urayneftegaz oil fields which allowed, under the conditions of low permeable reservoirs, to: ? increase the sweep and intensity of multi-reservoir field development by isolated development of certain layers; ? ensure produced fluid accounting from each of the reservoirs; ? efficiently manage the range of bottomhole pressures; ? extend the field’s economic development time ? reduce operational costs.

Waste plastic pyrolysis oil (WPPO) and ethanol are attractive renewable energy sources, as ethanol has a high content of oxygen. However, for this particular study, direct blending of conventional diesel, WPPO, ethanol and 2-ethyl hexyl nitrate (EHN) was attempted. The purpose was, firstly, to improve the combustion, ignition quality, performance and emission characteristics of the WPPO blends. Secondly, EHN has the potential to reduce emissions of CO, CO2, UHC, NOX and PM. Thirdly, ethanol improves viscosity and miscibility of biodiesel blends, besides increasing the oxygen content of WPPO. Five mixing ratios were used in the following order, 50/WPPO25/E25, 60/WPPO20/E20, 70/WPPO15/E15, 80/WPPO10/E10 and 90/WPPO5/E5 for conventional diesel (CD), WPPO and ethanol and respectively. However, for EHN the mixing ratio was determined by the total quantity of blended fuel and put at 0.01 %. Complete miscibility was observed with no phase separation allowed from the blended mixtures throughout the experiment. Performance and emission characteristics of a stationary single cylinder water-cooled diesel power generator were evaluated. The results obtained were compared carefully to ASTM standards and discussed using tables and graph figure curves. The conclusion was that ethanol and EHN can be used in diesel engine power generators as an alternative fuel to help improve cetane numbers and to increase the oxygen content without or with modification with WPPO blends. This is due to the densities 792 kg/m3 , 963 kg/m3 , 825 kg/m3 for WPPO, ethanol and EHN respectively, which are close to CD fuel at 845 kg/m3 . The addition of EHN, reduced emissions and improved engine performance so that it equalled that of CD fuel.

There is a growing need to develop automobile brake pad materials from sustainable sources. The study of substitute brake pad materials from sustainable sources is an area that requires immediate attention. This is because previous materials used (such as asbestos) are known to have carcinogenic effects. Several studies have investigated alternative materials to asbestos for brake pads. This review paper presents some of the most appropriate environmentally friendly and optimal composites for brake pads. Biomass-based composites from agricultural waste such as natural fibers waste are reviewed. This paper also surveyed the use of substitute materials as filler and binder, such as epoxy resin, phenolic resins, and other adhesives.

The purpose of the study is to assess the factors promoting stakeholders’ management of building projects in Nigeria with a view to managing the various interests of stakeholders on building projects. The research is a project-based study where fifty nine building projects were sampled. The study adopted cross-sectional research design, while research questionnaire was used to elicit information from the project leaders of the selected building projects. Purposive sampling technique was used to draw up the target respondents. Findings reveal stakeholders’ potential for cooperation, the control level of engagement of stakeholders, positive stakeholder’s interest towards the project and effective communication among stakeholders are the most significant factors promoting stakeholders’ management in building project delivery within the study area. The study also revealed that there is no significant difference among project leaders on the factors promoting stakeholder’s management of building projects in Nigeria.

Analysis of performance availability is very important to help improve network performance. This is due to developing services to be used by customers. In performance availability it is known that there are many problems that occur in each event in the field. In achieving the optimal level in carrying out the implementation and support processes of the performance management dashboard, an analysis is needed to develop management and control in the networking division with the aim of generating utilization in the implementation and support processes to align with the business needs of PT ABC. The existing reference model is a reference model that refers to the functional area of FCAPS. The FCAPS model consists of five functional areas, including fault management, configuration management, accounting management, performance management, and security management. In general, companies have implemented FCAPS on failure issues and configurations (fault and configuration). Security / security has relied on other tools that are not integrated in the FCAPS model as a whole. The basic principle is, even though there are five elements from FCAPS, one element can influence the success of other elements

This study examined the levels of satisfaction of employees with the major focus on the staff of estate surveying firms (ESFs) practicing in Lagos State, Nigeria. This was with a view to identify the factors influencing their levels of job satisfaction and analyze the relationship among the influencing factors. Structured questionnaire were administered to 367 ESFs operating in Lagos State out of which 274 representing 74.66% questionnaire were properly filled, returned and analyzed. The study deployed descriptive statistics such as simple frequency distribution, mean weighted score (MWS), cross tabulation, correlation and one-sample test (t-test). The findings of the study showed that few estate surveyors (17.52%) expressed satisfaction in the job, 39.42% of the employees were completely dissatisfied while 43.07% of them were unsure about their job satisfaction level. The result of cross tabulation showed that, male estate surveyors expressed higher level of dissatisfaction (53.73%) compared to their female counterparts (33.65%) in ESFs. From the MWS result, the respondents rated communication (COM: 4.41), fairness and sufficiency of salary (SAL: 4.23), the quality of relationship with supervisor (RLS: 4.23), fairness of organizational policies (ORG: 4.17), reward for good job performance (RWD: 3.85) and quality of relationship with co-workers (RCW: 3.77) as the dominant influencing factors of job satisfaction. The study also discovered strong positive correlation coefficient between COM and COW (.824), SAL and RWD (.775), RLS and COM (.754). At 5% confidence level, the result of the t-test showed positive contributions of all the influencing factors to employees job satisfaction in estate firms (p<0.05). The study concluded that providing enabling work environment in ESFs should be encouraged for optimal unitization of human and non-human resources. Thus, issues relating to staff welfare should be treated with optimum priority in organizations that desires to achieve efficiency in their operations.

Purpose – The aim of the paper to review the Robotic process automation in the recruitment process and its practical implications. This paper discussed possible applications for the recruitment industry caused due to the adoption of Robotic process automation in the recruitment process. Design/methodology/approach - This paper is structured by the independent academician, who have reviewed of the latest articles, research papers, reports and other relevant literature and synthesized their views in the process of presenting the paper. Findings – This paper offers technology development in the field of hiring industry. The RPA for managing the hiring process and also discussed possible applications and usage of RPA in the recruitment industry. Originality/value – The paper explains the role of technology and impact of RPA on the recruitment industry as well as clients in the Industry and the highlighted Inputs for successful integration and possible applications for recruitment industry. Article classification – Viewpoint.

In this paper, the effects of the hot-spotted cell on PV module were evaluated. The experimental observation was based on 100 kW PV array composed of 20 PV modules. It was found that an increasing number of hot-spotted solar cells in a PV module would likely increase its output power loss. It was also noticed that most of the PV modules affected by hot-spotted PV string are relatively affected by high-temperature levels, dust, and Partial shading due to trees or tall vegetation. Furthermore, the average performance ratio (PR) and degradation rate (DR) of all examined PV modules were analyzed. PR was observed to have a higher value of 0.78 in a non-hot-spotted PV array, whereas low PR of 0.65 was observed in a hot-spotted PV array. High DR of 3.13/year was observed in hot-spotted PV array; while low DR of 1.48/year was found in a module with no hot-spot. It was evident that the mean PR is significantly reduced due to the existence of hot-spots in the PV modules. DR was also increased due to hot-spot in the PV array. Hence, it is important to select materials that have the highest thermal stability to avoid mild hot spot situations that will lead to immediate damage of the panel. Hot-spot study analysis will help increase PV lifetime power output by detecting and preventing hot spotting before it permanently damages the PV panel

This article is devoted to the modernization of handicrafts manufactured to measure the stress in the ground (messdose). Today, when designing buildings and structures, an important task is to determine the amount of expected precipitation. The calculated values are not always objective, especially in the conditions of Western Siberia, where weak organic-mineral soils are common. Based on the experience of the introduction of sensors measuring the voltage in the ground, the author identified a number of factors by which they most likely fail. According to approximate calculations, until the end of the average natural experiment, about 25% of the messdose remain operable. The author proposed options for upgrading sensors to minimize the risks of their failure. The main causes of sensor failure: contact breakdown, depressurization, short circuit. They are eliminated by inserting fiberglass boards and two-stage sealing into the sensor body. The body of the sensors was made of titanium. Cyanoacrylate glue was used for sticking the strain gauges onto the body of the messdose. Sealing was performed with epoxy resin. As a signal cable used 4-core cable KSPV. Calibration of the sensors was carried out in an aerostatic tank. Upgraded sensors were tested during a laboratory experiment. The author tested a sample of weak organic soil in compression conditions. No total pressure sensor has failed. The convergence of the sensor readings with the load applied to the sample is very high. The measurement error did not exceed 10%. The author also attempted to make handicraft sensors to measure pore pressures in the ground, but during the implementation they all failed.

Currently a new economic development era has occurred, starting from the concept of sharing, sharing economy becomes a phenomenon in this era. This concept also, developed an early concept of new economy that initiates change through sharing even without ownership. An important factor in sharing economy is cooperation between the service providers, service users and companies whom provide applications include with method of profit and earning allocation which able to measure company feasibility and effectiveness. Sharing economy considered with many advantages, not only able to share but also provide benefits for company and consumer. Using people, process and technology perspective, this research describes sharing economy model more systematically. The purpose of this study aims to see and describe the model of sharing economy with people, process and technology perspective by gain deeper understanding of the concept. Furthermore, this research expected able to contribute and observe related to the industry, whom adopting the concept of sharing economy. This research method used Systematic Literature Review by founded study using the specific keyword from previous research. From 30 selected papers, this research’s result there are 5 variables of sharing economy model adopted from people, process, technology: (1)Community; (2)Networking; (3)Access Ownership, (4)Platforms, (5)Payment Systems

This research work is carried out in a air compressor manufacturing company which produces different models of air compressors. The work aim was to improve the productivity by reducing the total operating cycle time, unnecessary motions, material handling, and to create a standardized working environment. Two stations namely drive and lubrication assembly and testing were found out to be the bottleneck stations, and efforts are taken to improve its productivity. Kaizen’s were planned for improvement activities and were implemented subsequently. These improvement actions were based on Lean production organizational model and application of Lean tools. The current agility level of the firm was calculated and suggestions were given to improve the agility level of the firm

The aim of the study is to design, analysis and optimization of piston for a single cylinder four stroke over head valve (OHV) spark ignition engine. This paper used reverse engineering techniques, in order to obtain of an existing physical model. A three-dimensional piston has been created with the help of SOLIDWORKS and, it is imported to ANSYS environment for the coupled steady-state thermal structural analysis. The material used for piston is Die Cast Aluminium (DCA) 1, 2, and 3. The objective of this paper focuses the light weight piston design through finite element analysis, and to optimize the piston design using parametric optimization. The results obtained from coupled field analysis and parametric optimization, concluded the modified design is within the permissible limit along the selected materials for DCA2 and shows the maximum von misses stresses 78.75MPa, factor of safety (n) is 5.67 and yield strength of 165MPa and it is reduced the piston weight was 12.14 grams which is 7.42% less as compared to existing DCA1 without comprising the strength to weight ratio.

Hybrid composite materials are the great potential for engineering material in many applications. Hybrid polymer composite material offers the designer to obtain the required properties in a controlled considerable extent by the choice of fibers and matrix. The properties are tailored in the material by selecting different kinds of fibre incorporated in the same resin matrix. In this paper, the thermal properties of GFRP, CFRP, and Carbon and Glass fibers reinforced epoxy hybrid composite will be studied. The composites using are all unidirectional. The compression moulding technique will be adopted for the fabrication of hybrid composite materials. The thermal properties such as Glass transition temperature, Thermal conductivity, Specific heat capacity are calculated using Dynamic mechanical Analysis (DMA), Differential scanning Calorimetry (DSC), Thermo gravimetric analysis (TGA) respectively.

With the advancement in computer technology all over the globe developing and maintainability of a program is sine qua non. A program goes through various phases before it actually used by public and this is known as Software Development Life Cycle. The various phases are Requirement gathering and analysis, Designing, Coding, Testing, Deployment and Maintenance. Industries uses these phases to enhance the technology which is supported by many pillars like digital electronics, computer networks, data structure and algorithms etc. and major role is played by various programming languages. As a ramification of it this paper presents how various software testing methods like Unit testing, Integration testing, Validation testing and System Testing evolve with the revalorisation of programming paradigms. This paper revolves around Procedural Programming, Object Oriented Programming and Aspect Oriented Programming Paradigm and how testing is performed on this paradigms. This paper concludes by comparing various testing methods in various programming paradigms

A set D of vertices in a graph G(V, E) is a dominating set of G, if every vertex of V not in D is adjacent to at least one vertex in D. A dominating set D of G(V, E)is a k – fair dominating set of G, for ?? = 1 if every vertex in V – D is adjacent to exactly k vertices in D. The k – fair domination number ????????(??) of G is the minimum cardinality of a k – fair dominating set. In this article, we define the inverse of the k – fair domination number and try to find it for some class of graphs

This paper shows a study on the influences of the process parameters of wire cut electrical discharge machining (WEDM) on the surface roughness in machining 90CrSi tool steel. For this investigation, an experiment was designed and performed. In addition, 6 input parameters including the pulse on time, the pulse off time, the cutting voltage, the server voltage, the wire feed and the feed speed were carefully chosen for the work. The effects of these factors on the surface roughness were evaluated by analysing variance. Moreover, a regression equation was proposed for determining the surface roughness.

In this paper, we propose a mechanism to optimize range of EV by integrating some of the best methods to estimate rotor position, efficient temperature control modules and machine learning algorithms that analyze the vehicle’s environment and driving pattern. A simulation of an EV model with the above-mentioned modules is presented through Simulink. The result of this simulation is compared with the result of simulation with the same modules but with Machine Learning Algorithms integrated. A comprehensive comparison analysis is then presented to show how range of an EV improves as the machine learns.

The performance of government officials is a reflection of the progress of a region. The success of the performance of the regional government is interesting to note because the regional government is an extension of the central government that runs the government that has direct contact with the community in its area. This study aims to determine the effect of budgeting participation, budget difficulty, and organizational culture on the performance of government officials. This type of research is quantitative research. The population in this study was government officials in the Tanah Miring District of Merauke Regency. Sampling using the purpose sampling method that is sampling with certain considerations. The data in this study were processed using SPSS 21 tools. The results of this study indicate that participation in budgeting had a significant effect on the performance of government officials, while the level of difficulty of the budget and organizational culture did not affect the performance of government officials

The present study deals with modelling of a catalytic converter system for a compression ignition engine. Many models fabricated and tried to fit with an existing diesel engine. Since the compatibility of a diesel engine, exhaust with DPF is essential as the pressure gradient need to be maintained. The size of the diesel particulate filter is also important since the fabricated model size need to be sufficient to handle the gasses without affecting the flow and engine performance. This work consists of checking the fuel emission after changing the existing catalytic converter with disc mesh coated with titanium oxide, copper nitrate and cerium oxide. Since these are readily available, are cheap, and fabrication is also easy. Hence, the cost is reduced. The engine test results showed that the emissions reduced with the new fabricated catalytic converter comparing with diesel and Algae biodiesel blends

Green engineering investigated as a possible organic green material in the combustion process and heating applications. A bioreactor system processed Dendrocalamus asper bamboo culms as green engineering materials to theto industrial process that produces valuable elements from a natural treatment by soaking with an average of pH 7.6 level of sea-water. Pyrolysis Combustion Flow Calorimeter and Differential Scanning Calorimetry (DSC) to utilized the precise heat capacity extent to characterize the materials. A waste product in this process is the activated carbon, which is highly in demand for water cleansing system and sold to neutralize the fuel cost. The primary stage at 68-89oC is the exothermic dehydration of the biomass with the release of water and low-molecular-weight gases like carbon monoxide (CO) and carbon dioxide (CO2). The results from this research will be significant and helpful to develop and utilize the wastes from Dendrocalamus asper bamboo with 134.58 kJ for any renewable energy product.

Integration of information models between different software systems is an urgent task. There are a large number of CAD systems that cover more than 90% of the design tasks, but the mechanism for transferring information between these programs has not yet been worked out. Despite the use of common data integration formats (such as IFC, XML, DXF, DWG, PDF), CAD model elements are represented using various indicators and characteristics. This leads to a partial loss of information on objects. Integration of the model in an incomplete form and filling in the missing parameters manually takes a lot of time and is not effective. To solve this problem, research was carried out, the result of which was the generalization and structuring of the parameters of the elementsof information models of building objects. This allows you to solve the problem of heterogeneity of information about the model coming from different sources.

In this present work, A356 aluminum alloy is heat treated with the addition of copper, rare earth and strontium were investigated. T6 treatment is preferred in this work (solution at 535°C for 4h + aging at 150°C for 15h) when compared to other heat treatment processes (i.e short heat treatment processes). The effects of heat treatment on microstructure and tensile properties of the Al-7%Si-0.3%Mg alloys were investigated by optical microscopy and tension test. It is found that a 2h solution at 550°C is sufficient to make homogenization and saturation of magnesium and silicon in ?(Al) phase, spheroid of eutectic Si phase. Followed by solution, a 2h artificial aging at 170°C is almost enough to produce hardening precipitates. Those samples treated with T6 achieve the maximum tensile strength and fracture elongation. With short time treatment (ST), samples can reach 90% of the maximum yield strength, 95% of the maximum strength and 80% of the maximum elongation

India has witnessed significant growth in the manufacture of automobiles. Growth in vehicle population results in several environmental issues. Regulators have been controlling the emissions by setting standards. Carbon dioxide is one of the key emissions to be controlled and the same is a direct function of the fuel consumed. The objective is to conserve fuel and control global warming. Hence the focus is on fuel efficiency norms. Various steps have been taken by automobile industry towards improving fuel efficiency. This article attempts to ascertain the trend in fuel efficiency of the petrol and diesel vehicles as per the data reported by Society of Indian Automotive Manufacturers (SIAM).

This article details the approach to minimize energy expenditures when using vehicle transmissions. This approach comprises certain mathematical simulation techniques which help to study and minimize energy expenditures of transmission unit systems. The use of mathematical simulation, when defining an optimum temperature of a transmission unit system, is based on comparison of stabilization temperatures in real conditions, changeover points and optimum temperatures of transmission units. As a criterion of optimization, we suggest using minimization of a resource expenditure function for a whole system of units. This article details possible variants of heat interaction between units and provides guidelines for achieving a target changeover point of a vehicle transmission. We studied possible variants of heat interaction between units and provided recommendations for achieving a target changeover point of a vehicle transmission.

The process of anodizing aluminium alloys in an ozone-containing electrolyte when a flat cathode is replaced with a needle shape was studied. The microstructure of the oxide layer and the density distribution of the phases in the volume of the film in two positions of the cathode — stationary and during its rotation — were investigated. The mechanical properties of the surface layer were determined

Among the technological processes that require significant energy consumption, a significant role is played by the heating processes carried out by electric infrared heaters. The efficiency of such heaters is defined as the perfection of the heater, that is, its ability to most effectively convert electrical energy into infrared energy and the ability to direct the flow of infrared radiation to the receiver as well as the perfection of the receiver, that is, its absorptive capacity and ability to transfer heat with minimal loss of the heated substance.

When designing concentrating plants, the selection of the technological comminution scheme for beneficiation, the type, quantity and size of the equipment, the determination of optimal grinding regimes and the calculation of equipment loads are carried out by preliminary studies of grinding in semi-industrial or laboratory conditions. Semi-industrial tests ensure the most reliable information for calculating loads for equipment. However, this requires a significant amount of ore samples, a lot of labor and the pilot plants. Fred Bond published an article in 1961, which, described the procedure for testing ores for a Bond Ball Index. This parameter is still one of the most demanded tools in the design, evaluation and optimization of ball grinding plants around the world. However, the testing methodology for the Bond Dall Index requires about 10 kg of sample, the standardized equipment and takes an average of 6 to 12 hours. Many researchers have tried to find alternative methods for determining this Index - to reduce labor costs, sample weight, or to get one without standard equipment. This paper was carried out with the purpose of reviewing, classifying and testing the existing methods for determination the Bond Ball Mill Index. The authors of the considered methods were Aksani B. and Somnez B., Todorovic D., Berry T. F. and Bruce R. W., Horst W. E. and Bassarear J. H., Ahmadi R. and Shahsavari Sh., Kapur P. C., Gharehgheshlagh Hojjat H., JKTech, Lewis K. A., etc. The paper presents the relative errors of the obtained value from the actual Bond Ball Mill Index, the average working hours for the testing procedure and necessary equipment

The objectives of this study were: (1) to describe the application of occupational safety and health (OSH) in the machinery industry in the Yogyakarta area, (2) describe the application of OSH in vocationalschoolsin Yogyakarta and (3) evaluate how the application of OSH in the machinery industry if applied in the implementation of OSH in vocational schools. The researchmethod used is descriptive qualitative research.Research subjects are 3 production machinery industries and 3 Vocational High Schools (VHSs) in the Yogyakarta region namely: PT. Mega Andalan Kalasan, PT. Yogya Presisi Tehnikatama Industri, CV. Karya Hidup Sentosa (Quick), VHSs 2 Depok Sleman, VHSs 2 Yogyakarta, and VHSs Muhammadiyah 3 Yogyakarta. Data collection uses observation and interviews. The results of the study:(1) The machinery and manufacturing industry in the Yogyakarta area has carried out OSH aspects including occupational safety, occupational health, and OSH management in accordance with the OSH application rules for industry;(2)VHSs in the Yogyakarta area have not implemented all aspects of OSH implementation in accordance with industry standards. The application of occupationalsafety aspectsis still lacking, the application of occupational health is still lacking, and management aspects have not been implemented, and (3) VHSs should implement OSH management in accordance with industry standards, especially OSH management, namely: (a) OSH education and training, (b) socialization of OSH in schools, and (c) provision of personal protective equipment, and (d) health services in schools.

The paper presents the study of high harmonics influence on power metering by static meters for active and reactive energy. The review and analysis of manufacturer’s documents and standards in the field of electricity meters testing was conducted and mathematical models for calculating active and reactive energy were identified. Various electronic meters were tested at the experimental stand. As a result, the errors of active and reactive energy metering in the presence of high harmonics were determined. It is shown that the implemented in static meters equations for the active and reactive energy calculation can lead to unfair payments for electrical energy in the presence of high harmonics.

A brake is a mechanical device which simulated frictional safety is connected to moving machine part, to stop the movement of a machine. At present performing this function, the brakes take in either kinetic energy of the moving part or the potential energy surrendered by items being brought down by lifts and so forth. The energy absorbed by the brakes is scattered as heat. Disc brake is a recognizable automobile application where they are utilized broadly for car and bike wheels. The disc is sandwiched between two pads activated by cylinders backed in a calipers mounted on the stud shaft. At the point when the brake lever is pressed using pressurized hydraulic pressurized fluid is constrained into the chambers pushing the contradicting cylinders and brake pads into frictional contact with the disc. The frictional heat produced amid braking application can result in various negative impacts on the brake assembly, for example, brake blur, untimely wear, thermal splits and disc thickness variation (DTV). The main purpose of this project is Optimization of Automotive Brake Disc and analysis the unsteady state thermal behaviour of the dry contact between the brake disc and pads during the braking phase. The thermal-structural analysis to determine the deformation and the Von Misses stresses established in the disc. The objective of the project is the design, analysis and optimization of disc brake using Ansys. The brake disc is designed by a 3Dmodelling software CATIA V5R20 and we analyse structural and thermal conditions on disc brake using ANSYS 15

In the recent years, women’s driving four wheeler has become a very common sight all over the India. According to a survey, 85% of women are in the driving seat for all purchases. Yet, many independent marketing and communication agencies reveal that 80% of women believe that the automotive industry as a whole is not doing a good job at representing women, and 88% of women do not see themselves represented in the sector’s advertising or websites. For years, women have been considered as primary decision makers for most household products and forward thinking companies have found ways to capitalize on this by developing marketing plans that address women’s multifaceted lifestyles, by evaluating and retraining existing sales and customer service forces to better serve women’s needs and interests. Many studies show that women feel advertising has made them aware of different cars in the market. Also many women agree about the perceived exclusivity of car ads in the ads being aimed only at men. This study employs Conjoint Analysis to ask to know the preference of Women in Cars. Results of the study are discussed with future directions for research.

This quantitative research examined the influence of leadership on work effectiveness of Corps Supply Officers. The sample in this study was all financial officers in Navy Secretariat Headquarters Jakarta by the financial specialization of the rank of Flag Officer and the rank of Second Lieutenant, First Lieutenant, Captain and Middleranked Officers with the rank of Major and Lieutenant Colonel at the Navy Headquarters which numbered 120 people. The results of the study indicate that leadership has a direct influence on the effectiveness of the Supply Corps Officer.

In the initial stage of tire and vehicle development, ordinary drivers demanded only the basic performances including price and economic values, etc. However, performances that ordinary drivers are demanding are continuously increasing due to diversified information sharing and technology advancements with particular focus on the steering and safety features of the vehicle. Methods of evaluating the performances of tire and vehicle can be divided largely into subjective evaluation and objective evaluation. Both of these methods have their respective strengths and weaknesses. In order to supplement their weaknesses and to maximize their synergic effects, various relevant companies are conducting a diverse range of performance correlation researches. In this study, correlation research methods that had been used frequently in the past were reviewed and new analytic method capable of quantitatively indicate the differences in the subjective evaluation results and performance levels is presented

Usually scientometric indicators for assessing the effectiveness of workers in the field of science and higher education are considered from the standpoint of their criticism, identifying the limits of applicability, the impact on the quality of professional activity of workers. However, like any tools for managing social work, indicators of its effectiveness also have important social consequences. On the one hand, the assessment of the work of researchers and teachers using the Hirsch index and the number of publications in the Scopus and Web of Science systems was closely related to a significant increase in the level of remuneration of these workers compared to the average wage levels in the Russian economy. But, on the other hand, there are opportunities for the formation of large differences in the levels of wages in science and education, and, hence, for the stratification of workers employed in these industries, the rich and the poor. This social stratification is the result of the inclusion of noncommercial activities in market relations.

Epoxy has been often used with reinforcements due to its brittle nature. Various reinforcing agents have provided a multitude of composites with their own unique characteristics. Graphene is perhaps one of the most inspiring discoveries in the field of science and technology since its potential applications are limitless due to its admirable properties. It is basically an allotrope of carbon, a single layer of atoms bonded in a honeycomb lattice. Among the various other nano fillers, graphene has been used as reinforce epoxy which is then further strengthened with alumina. Composites have been designed and redesigned throughout the years, developing more and more advanced materials for engineering applications. But there’s always a need for a material with higher performance at lower cost in every aspect of technology. The aim of this review is to put forth information regarding the materials used for developing a hybrid composite using alumina, graphene and epoxy. This is done in order to boost the performance of the existing epoxy resin, which will be then tested for its mechanical characteristics. The result of the experiment will be compared with a standard specimen consisting of graphene and epoxy. The materials and their properties, along with tests conducted on them are covered in this paper.

This experimental study investigated the effects of milling conditions on the finished surface roughness. With four controllable factors-three levels (cutting velocity, feedrate, radial depth of cut, and cutter helix angle), the nineteen experiments were performed with performance measurements of surface roughness. By ANOVA analysis, the effect of cutting conditions on the surface roughness were analyzed and modeled. The most suitable regression of surface roughness was a quadratic regression with the confidence level is more than 97%, and this model was successfully verified by experimental results with very promising results. Besides, by using ANOVA method, the optimization process of surface roughness was performed. The optimum value of surface roughness is 0.2259 µm that was obtained at cutting velocity of 143.4904 m/min, a feedrate of 0.01 mm/flute, at a radial depth of cut of 0.1 mm, and a cutter helix angle of 45o. The approach method of the present study can be applied in industrial machining to improve the surface quality in finished face milling the C45 Steel

Failure in power transformer can be catastrophic to electric systems, since transformers play a vital role in the power sector. Metallic particles in transformer oil lead to Partial discharge which can result in serious conditions. The existence of conducting particle in the winding of a transformer accumulates electrical stress. Simulations are carried out for the electrical analysis of power transformer. The impact of this electrical stress on particle at different position has been analyzed in this paper.

This paper contributes to a review of the research of the fatigue behaviour of thermal spray coatings on carbon steel. Previous studies provide the experimental characterization of the fatigue resistance of coated carbon steel. Different coating powders were deposited to a different type of carbon steels. Also, S-N curves were drawn from axial- and rotating bending fatigue test to determine the fatigue strength or fatigue limit of the samples. Thermal spray coatings showed great improvement to the work hardening effect but worsen the fatigue life due to the inclusion of oxide and pores, the presence of stress concentrators, and high microcrack density. Moreover, the effects of the surrounding environment have also resulted in pros and cons towards the fatigue strength. An improvement, however, can be done with the shot peening treatment, which significantly increases the compressive residual stress at interfaces of coating/substrate. The high compressive residual stress could delay the crack nucleation, thus increasing the fatigue life of the coated part.

Promoting export-based industry is a challenging task. Industrial competitiveness is frequently used as the overall indicator. The article offers a novel result of priority weights of Thai silver jewelry industry. Factors that may influence the industry were collected by literature reviews. Then, industry experts and entrepreneurs choose and classify the factors into performance drivers. There are 32 factors organized into 7 categories or drivers. Next, the analytical hierarchy process (AHP) is utilized to calculate priority weights of factors. As a result, the sales-and-marketing driver is the most important driver, and laborintensive tasks dominate the competitiveness of the industry. On the other hand, the research community could use the priority weight of factors in their research and develop policies to promote the industry

Wrapped probability distributions are used in modeling circular data arising from physical, medical and social sciences. Wrapped exponential distribution is obtained from wrapping exponential distribution in a unit sphere. This work considers the generation of ordinary differential equations whose solutions are the probability functions of wrapped exponential distribution. This will help in understanding the nature of exponential distribution when wrapped in a circle. Different methods can be used in obtaining the solutions to the differential equations generated from the process. Some unique patterns were observed which can channel research activities towards the area. In conclusion, some expressions were obtained that link the probability functions with their respective derivatives

A majority of the modern inkjet printers utilise drop on demand devices because of its precision in terms of time and easy control. The time-dependent fluid interface disruption renders the fluid dynamics process during droplet ejection complex. The current work attempts to provide an idea of the drop ejection behaviour based on the computation of energies required for droplet formation and splat formation. The simulation results for various nozzle diameters with different polymer inks are examined and it is validated with computational model. Further attempt is made to analyse the effect of rheological properties like viscosity and surface tension in the droplet formation

The purpose of this study is to design information technology architectures to automate enterprise business processes. The company IT architecture needs to be improved to support the vision and mission in accordance with the needs of the ongoing business process. Therefore, it is very important for companies to create IT blueprints to facilitate the development of information systems in the future. The IT architecture in this study was designed using TOGAF ADM, with SOA and ERP as a solution to existing problems. The results of this study are in the form of IT architecture design to support the company strategic plan through the automation of enterprise business processes.

Fuzziness is found in engineering, medicine, manufacturing and other areas in our daily life. Recently, Fuzziness is applied to find the solution of human decision, reasoning and learning. The concept of intuitionistic fuzzification of subalgebra and KM ideals of the K-algebra are considered for testing the satisfaction of the properties. In addition to Intuitionistic fuzzy magnified translations to intuitionistic fuzzy KM ideals in K-algebra also introduced and their several related properties are tested and proofs are presented in this work.

This paper studies the effect of the change in air-fuel ratio on the engine and automobiles vibrations. Principle of vibration analysis is used to determine the system behavior. Air-fuel ratio is studied, as an input parameter, for stoichiometric, rich and lean fuels. Such changes in air-fuel ratios makes the engine and so the automobile to vibrate significantly. A benzene automobile with1800 CC - 4 cylinders engine is tested and an accurate vibrometer is used to sense such vibrations. It is found that there is an effect for the air-fuel mixture on the vibration of the engine and on the car as a whole. Rich mixtures have the highest frequencies at most record time. It is theoretically expected due to the high energy released by the combustion in which all of the oxygen is consumed.

In this paper, a Simulink modeling of Active Power Filter was established to reduce the harmonic with high adaptability for kinds of loads. Fuzzy logic controller was used to control the capacitor’s DC voltage of the two level three phases inverter that was designed to work as an Active Filter. Modeling simulink schem shows the improving of the capacitor DC voltage responding as well as decreasing Total Harmonic Distortion of the line currents.

A turbine ventilator is a promising technology used to achieve multiple cooling conditions. The present study proposed a method to improve the indoor air quality (IAQ) of refugee camps to overcome issues related to air borne diseases. A turbine ventilator was designed based on the ISO and ASHRAE standards. The effect of the turbine ventilation fan on the IAQ of a modelled refugee shelter was investigated via Computational Fluid Dynamics (CFD) simulation. The first part of the study was intended to select the best turbine ventilator design to test its performance while in the second part, simulation study was conducted on the selected design in comparison with the benchmarks (currently market-available turbine ventilators). It was observed that a 55° blade angle design performed best at 115 RPM and was tested for indoor air quality improvement for the transitional shelter found in the Dadaab region, Kenya. ISO 7730 (2005) standards were met with average internal air velocity of 0.25m/s. PMV and PPD for the whole space were at 0.452 and 9.938%, respectively, which are well within the recommended values. The results from this study would hopefully provide an insight into future developments of turbine ventilators not only for refugee camps, but also for other sectors requiring improvements to indoor air quality

The main limiting factor for increasing yields in the conditions of the arid steppe of Northern Kazakhstan is moisture. The accumulation of moisture during winter precipitation for plants in arid conditions in the initial stage of the growing season was a serious production problem. For four years, the accumulation of snow and the amount of water in the snow were compared over the backgrounds of ordinary stubble, tall stubble left after stripper header (continuous combing) and stubble coulisses. Research methods included field observations and mathematical modeling. It has been established that the water reserves in the snow depend on the height of stubble coulisses, as well as the density of snow in the coulisses and in between the spaces. Studies of snow accumulation on stubble coulisses, continuous combing and ordinary stubble showed that the density of snow between the coulisses is 9-29% higher than the density in the coulisses and the density of snow between the coulisses is 25-63% higher than the density in the stubble or continuous combing. The explanation of this phenomenon was the hypothesis that the dispersal of snow blizzards occurred between the coulisses due to this, snow blocked this space with high density. Field experiments indicated an intensive decrease in the depth of snow with increasing distance between the coulisses. By mathematical modeling, it was found that for stubby coulisses the following parameters are rational: the distance between the coulisses in snowy winters is 5...14 m; in the snowless 5...7 m, the width of the coulisses is 1...1.5 m. It has been established that in snowy winters the water reserves in the snow are slatted coulisses with rational parameters by 25.8...32.2 mm (13...41%) higher than on the background of continuous combing; 68.0...99.3 mm (2.1...3.1 times) higher than the stubble background. In the winters with little snow, the water reserves in the snow of stubble coulisses with rational parameters are 18.5 mm higher (by 34%) than on the background of continuous combing; 51.9 mm (3.4 times) higher than the stubble background

The paper discusses changes introduced into the regulations that come into effect in 2019 and the following years. The paper also sets forth measures necessary to adapt the nuclear industry to these changes in the environmental legislation that apply to almost all fields of legal regulation, from categorization of objects to fines for negative impact on the environment.

A communication link with retransmission is proposed for assessing the reliability of transmitted messages over composite (radio wired) communication lines. This solves the problem of the feasibility of using a communication repeater.

The rectangular hollow beam used for many constructions. Therefore, the buckling load prediction is neces-sary to convince those constructions would not be overdesign and prevented the failure. Within uses the finite element method, the result is more accurate for the rectangular hollow model. This study has investi-gated the hollows considering the variable of its profile size, length and thickness. The boundary condition used the free-fixed configuration to convince the critical loads occurred from axial compression. The goal of this study is to obtain the collapse behavior of each hollow size also the buckling load factor constant. The mode-shape consisted by wrinkled and Curved shape, it is depending to the rectangular hollow length.

Wind energy is that clean, green, available and one of the most economical renewable energy source. Wind driven water pumping systems – windmills- are some of the older machines. Long time ago, windmills have been developed by many cultures to lift water for livestock, land drainage, irrigation and domestic supplies. As found from other wind projects and studies, the most economical and useful application that can be installed in the Jordanian arid regions is the wind pumping system using Windmill. The Windmill is a perfect choice for our region because it doesn’t need high wind speed and the wind torque can be achieved by using large rotors. The windmill converts kinetic energy in wind into mechanical energy and then into hydraulic energy into the pump. The 24 blade classic windmills are the most common type of windmills which it is the one that been chosen for the present study. Achieving the goal of this study could be done by the careful design of the rotor, transmission system and the pump. A good pump design will raise the system efficiency. A design is made and all calculations showed a very good pumping output. Then the model is manufactured in the faculty of engineering workshop from local materials. It is designed to be used in a wind speed of about 3.5 m/s at 8 m tower elevation. The goal is to pump 15 m3/day of water to cover the student services building needs. The test after installation showed that the pumping flow rate of 0.2 L/sec has been achieved; this result shows that the designed and manufactured wind pumping system can pump more than the record which allows storage of water.

The procurement system in Nigeria is known to be bedeviled with mismanagement and corruption. The scenario prompted the enactment of Public Procurement Act, (PPA) 2007 which regulates all procurement of projects made with public funds. The Act was enacted to be complied with by both the federal and state governments together with Ministries, Departments and Agencies (MDAs) in their procurement of goods, works and services. Studies however, have shown that compliance with the Act by the various procurement entities is affected by diverse challenges. This study investigates and compares the various causes of non-compliance with the PPA, 2007 among two prominent categories of government sponsored tertiary institutions in Southwest, Nigeria namely; Federal Tertiary Institutions (FTIs) and State Tertiary Institutions (STI). A questionnaire survey research approach which involved a field survey of Federal and state Tertiary Institutions in Southwest, Nigeria was carried out. In all, 44 Higher Education institutions comprising 17 federal tertiary institutions and 27 state tertiary institutions were used for the study. The perception of the institutions’ Procurement Officers on the problems associated with the implementation and compliance with the provisions of the Act and their consequences were sampled using structured questionnaires.The results revealed that unfamiliarity with the provisions of the Act, poor record management, unprofessionalism, inadequate organizational incentives and media publicity were the major causes of non-compliance. The study concluded that there is need for understanding of the Act by the parties involved in the implementation of the Act in both the FTIs and STIs in Southwest, Nigeria for effective compliance. The study recommended among others, trainings in form of conferences, seminars and workshops to the procurement officers of the institutions for better and improved compliance with the Act.

The use of the internet has become a very important need, and the development of information technology continues to grow indefinitely. As an archipelagic country, the connectivities of satellite infrastructure networks connect all corners of the country in Indonesia, which cannot be reached through land networks. The existence of High Throughput Satellite (HTS) technology that has been launched in Indonesia it is expected to support government programs to be able to open access to the entire village. It will be of great strategic value for economic acceleration and management of development, as well as the internet and social media that can open up wider marketing space for micro-entrepreneurs to develop their businesses in the region. This paper presents that lately call the sky toll with High Throughput Satellite (HTS) technology can be the best solution, especially in supporting government programs in accelerating the internet into the village.

This article reports photovoltaic and optical properties of composite films 5,10,15,20-tetraphenylporphyrin (TPP) with the addition of phosphor’s complex oxide (Y0.9Eu0.05Bi0.05VO4) prepared by the spin-coating method on the surface of indium tin oxide (ITO) plates. Studies of the photopotential of the films depending on the mass ratio of phosphor and porphyrin are presented. The influence of complex oxide on optical band gap of the semiconductor is shown and stability of the films calculated and discussed

IT evaluation, especially the vestyna application, must be implemented properly so that it has an impact on the companys achievement. The purpose of this study is to evaluate the implementation process and support for the vestyna application at PT XYZ. Measurements are made using the COBIT 5 framework with the Process Assessment Model (PAM) method. From the measurement results it can be seen that most of the capability levels of the vestyna application evaluation processes at PT XYZ is at level 1 (performed). The target that the company wants against the level of capability of these processes is at level 3 (established). Therefore, a recommendation is made to improve these processes by referring to the best practices suggested by COBIT 5. The main recommendations include regular communication between vestee computers and partners to convey the values of each existing project, making a Standard Operating Procedure (SOP) for the entire project from the type of project to revenue calculation, periodic monitoring and reporting as well as documenting all activities related to the application of the vesty to written and oral documents

This paper proposes a control strategy of open winding permanent magnet synchronous motor (OW PMSM) in field weakening modes. There are two inverters. One of them connected to the traction battery. Main bridge inverter aimed to provide power with approximately unity power factor, another one to capacitor. Floating bridge inverter aimed to control capacitor voltage on desired value and provide reactive power to the moto. Compare OW PMSM control system with conventional field-oriented control (FOC) shows that proposed method helps to reach speed 1.41 times more than FOC system. FOC system was simulated with 310V DC power supply. OW PMSM with 160V DC power supply and 500 nanofarad capacitor.

Smart car deals with the smart collision avoidance between the vehicles using visible light communication. The basic concept behind this technique is that the data can be transferred through LED light by varying light intensities faster than the human eyes can perceive. This technology uses a part of the electromagnetic spectrum that is still not greatly utilized- The Visible Spectrum, instead of Gigahertz radio waves for data transfer. Light Fidelity (Li-Fi) has got a much broader spectrum for transmission compared to conventional methods of wireless communications that rely on radio waves. By Communication through visible light, Li-Fi technology has the possibility to change how to access the Internet, stream videos, receive emails and much more. Security would not be an issue as data can’t be accessed in the absence of light. As a result, it can be used in high security military areas where RF communication is prone to eavesdropping. By adding new and unutilized bandwidth of visible light to the currently available radio waves for data transfer, Li-Fi can play a major role in relieving the heavy loads which the current wireless system is facing. By the use of this technology, smart cars have been implemented

Epoxy resin blended with Unsaturated polyester resin and filled with TiO2 filler. ultrasonic mixing process. TiO2 nanoparticles were used as reinforcement in prepared by cast molding method with filler volume fractions (0%,1%, 2%, and 3% ). The thermal conductivity constant, hardness, compression strength, wear, impact strength and DSC were studied. Compression strength, wear loss, thermal conductivity constant, DSC, FTIR, UV, atomic force were studied. The experimental results showed that the thermal conductivity constant decrease, hardness increase with filler content increase . Titanium dioxide content in epoxy/polyester blend matrix was dispersed and investigated by using ultrasonic technique .Sample four give the maximum value of compression strength. The glass transition temperature, melting point and degree of crystallization decrease by adding titanium dioxide

The paper deals with the use of the "memory effect" of a groundwater aquifer for the retrospective estimation of the sources of groundwater industrial pollution, and in order to obtain a reliable estimate of their impact on groundwater and surface water. It is shown that combination of the mathematical modelling with the analysis of the age of underground waters during the calibration of the geomigration model makes it possible to significantly refine the parameters of pollution sources, obtain reliable modern aureoles of groundwater contamination, and thereby increase the reliability of predictive calculations

This article examines the possibilities of applying project management in the field of agriculture from farms to Russia largest agricultural holdings in order to find new opportunities to enhance entrepreneurial activity. The proposed measures are aimed at improving the efficiency of project management at these agricultural enterprises in the context of the stagnation of the global economy and sanctions

The purpose of this study was to analyze the direct influence of job design and quality of work life on the affective commitment of teachers. This research method with a quantitative approach and data analysis techniques using path analysis. The findings of this study prove the direct effect of job design on affective, there is a positive direct effect quality of work life on affective commitment and there is a positive direct effect of job design on the quality of work life. The conclusion is that increasing the teacher affective commitment must be supported by the job design and the quality of work life properly, effectively and efficiently

The fact that taxation is essential for sustainable economic development and tax administration is as basic function of a successful state makes tax authority to improve its tax collection services and make tax administration more effective. The study investigated the adoption of E-taxing by tax revenue authorities in Ethiopia regarding the barriers which can affect the authorities from taking advantage of E-taxing system and anticipated benefits derived by adopting the system. The study was carried on the data collected from tax revenue authorities in Ethiopia especially in Wolaita Sodo town tax revenue authority. Purposive sampling method was applied to draw the sample from the target one. A mixed research approach was used to answer the research questions that appear through the review of existing literature and the experiences of the researcher in respect of the E-taxing system in Ethiopia. The study statistically analyzed data received from the survey questionnaire and interview. The result of the study indicated that, the major barriers of Ethiopian taxing authorities faces in the adoption of Electronic taxing are, frequent power interruption, tax payers low levels of computer literacy, lack of sufficient government support affect tax payers willingness lack of uniform platform by tax authorities for adoption and growth of E-taxing technology in Ethiopia, lack of skilled manpower exist in tax revenue authorities, limitation in network infrastructure. Lack of enough coordination, interaction and cooperation between tax revenue authorities and other decision making/like ETC and EELPA/ centers in e-taxing context and lack of legal framework for e-taxing for implementation and growth of Etaxing technology in Ethiopia and the benefits are E-taxing to improve customer service and satisfaction-taxing wish to satisfy rapid change of customer/tax payers need and preference, E-taxing to improve the relationship with customer and E-taxing to coverwide geographical area for the development of E-taxing technology, increases productivity of the tax revenue authorities decrease the work load of makers, reduces paper work and HR requirement and enhance productivity in the taxing authorities as a driver of adopting and developing E-taxing system in Ethiopia. The study recommends sequence measurement which could be taken by all tax revenue authorities staff and management body creates collaboration with the respective government organ for the development of E-taxing Technology by investing on ICT infrastructure, set clear direction and focused on technological innovation for the Globalization of the country.

The present study was carried out to investigate the mechanical properties of newly developed cast aluminum alloy with the (1.0 at. %) of copper and (1.0 at. %) magnesium addition in the mole ratio of 1:1:1 of Al-Cu-Mg in as - cast and thermally aged conditions. The atomic weight (at. %) selection of Cu-Mg on the basis of stoichiometric calculations, 1 unit (at. %) of copper and 1 unit (at. %) of magnesium preheated at 200?C were mixed in liquid aluminium base material, heated in an electric furnace and melting temperature was kept at 750?C for about 10 min alone and this melt was hold at 7300C with alloying additions of copper and magnesium for about 30 min to ensure complete homogenisation, Further, this liquidous aluminium metal matrix was stirred at 800 rpm for five minutes and poured at temperature 7000C? 10 0C in permanent mild steel mould preheated at 2000C in order to achieve as- cast aluminium alloy. The solution treatment at temperature 5000C for 2h followed by a quenching in water at 60 °C. Further, it was thermally aged at temperature 1600C for 6 h followed by quenching at room temperature. The effect of solution and aged temperature on mechanical properties by changing metallurgical morphology and further the role of intermetallic compounds on mechanical properties of as-cast alloy have been studied. The optical microscopy and scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) were used to identify the intermetallic phases and formation of different precipitates were studied by using X-ray diffraction (XRD). The improvement in hardness values 35.55% at 1% Cu &Mg as-cast alloy with solution temperature 500 0C,2h and 56.66 % have been recorded and reported at 1% Cu &Mg as-cast alloy with 160 0C,6h

In this article the work of the components of information of protection tools on the occurring violations, their types and the elimination of these violations and the possible trajectory of a change over time of the functioning states of information of protection tools with a discrete time are researched. Schemes for the transition of states of information protection tools and a graph of probabilities of transitions between the functioning states of information of protection tools with discrete time, allows for detecting the vulnerabilities of information of protection tools are developed. Taking into account the above, a method for determining the probabilities of states for the functioning information of protection tools with discrete time allows describing a graph-scheme of transitions using a small dimensionality of sets of states, to make a square transition matrix at a lower bit depth is offered.

This article discusses testing results of industrial trial of new wastewater disinfection comprised of combined use of ultrasonic and ultraviolet methods at final stage of wastewater treatment aimed at elimination of pathogenic organisms, thereby preventing spread of infectious diseases. The new method has been developed, patented and tested at one of the leading water service companies: SUE “Vodokanal of St. Petersburg”. The integrated assembly was fabricated at Novotech-ECO and installed at South-West Wastewater Treatment Plant (SWWTP, SUE “Vodokanal of St. Petersburg”). The test results demonstrated efficiency of combined ultraviolet and ultrasonic treatment of wastewater both in terms of disinfection improvement and in terms of the assembly operation stability through prevention of biological films deposition on lamp sleeves. The latter fact served as background of the challenging project on improvement of existing system of ultraviolet disinfection at SWWTP.

In this paper, we determine the optimal location of the piezoelectric element on the upper surface of a plate, interacting with a layer of a quiescent fluid of finite size. As a quantity, allowing us to evaluate the operating efficiency of a piezoelectric element in damping a single specified mode of structure vibrations, we take the electromechanical coupling coefficient. It is calculated based on the values of the natural frequencies of the system, obtained for the two characteristic performance modes of an electric circuit (open and short circuit modes). The behavior of the piezoelectric element is described by the equations of electrodynamics of deformable electroelastic media in the framework of the quasi-static approximation. The motion of an ideal fluid in the case of small perturbations is considered in the framework of the acoustic approximation. Small strains in a thin plate are determined using the Reissner – Mindlin theory. The numerical implementation of the problem is carried out using the finite element method. The obtained results made it possible to identify situations, where the optimal location of the piezoelectric element can be determined without considering the effect of the fluid

This paper aims to introduce the education and the role of 3D printing (3DP), focusing on its contribution and impact on plastic industry. The goal is to provide solution for increased plastic production and disposal, seeking effective methods to enable 3DP technologies and applications. Recycling of feedstock and reduction of material usage is the main solution in discussion

This paper presents pith plane dynamic model of a cargo truck. Numerical simulations for determination of a pitch angle and deflection in front and rear suspension under braking on railway crossing are conducted. The change of the braking force is presented by trapezoidal form, similar to the theoretical law of variation of braking deceleration in the braking diagram of road vehicles. For the railway crossing profile trapezoidal function is used too. The numerical simulations are carried out in program field of MATLAB. After conducting tests for determination of a braking dynamics and braking properties of a truck in road conditions, the pith plane model is validated. Possibilities for pitch angle and suspension jounces reduction are given. A fifth wheel assembly, displacement sensors and data acquisition system are used in the road tests

Where to get leaders who are in line with the needs of PLN now and in the future, leaders who can understand the issue of business so that it can be illustrated when Indonesia Power Company (“PLN”) leaders complete their daily tasks, one of which can be seen from the results of Leadership Learning Performance (LLP) through Executive Education in PLN Corporate University. The purpose of this paper is to evaluate and improve the results of LLP with increasing number of unsuccessful participants and make a proposal for a 4DX (4 Disciplines of Execution) strategic program for the implementation of SAQ (Speed, Agility, Quality) to improve the outcome of leadership learning. The researcher uses Total Quality Management (TQM) variables and Study Satisfaction (SS) as independent variables to Leadership Learning Performance (LLP) as dependent variables. From the hypothesis compiled the results show that all hypotheses are significant and accepted. So that by consistently applying TQM will improve the results of LLP at PLN Group.

In this paper, we investigate the existence, uniqueness and stability of periodic solution of new integro-differential equations depended on special function with singular kernels. The numerical-analytic method has been used to study the periodic solutions for the ordinary differential equations that were introduced by Samoilenko. Also these investigation lead us to the improving and extending the results of Butris and extended Samoilenko method

The aim of the work is a quantitative approximate assessment of the contribution of various hardening mechanisms for carbon and low alloy steels according to their chemical composition and parameters of a thin metallographic structure. It is generally accepted that the work is of scientific and practical interest, since, as is known, there is currently no theory that satisfactorily describes hardening mechanisms, especially for new promising hardening methods (combined hardening methods, combined heat treatment methods, plasma, laser processing, etc.). There are only approximations that describe the existing hardening mechanisms, which do not provide a rigorous quantitative assessment of the yield strength of steels with different structural states. In this paper, by analyzing the literature data and our own experimental studies (on chemical composition and structure parameters), the approximate contribution of various hardening mechanisms to the yield strength of carbon, wheel and low-alloy steels was quantified. The assessment is not strict, based on a number of assumptions. It was established that for hot-rolled steel (St5ps) [1] the greatest contribution to the yield strength is made by solid-solution and grain-boundary hardening (37.3% and 33.3%), in low-alloy steel 16G2AF [2], along with these components of hardening, dispersion hardening plays a noticeable role (21.5%). It is shown that the combined heat-strain treatment of St.5ps steel leads to an increase in dislocation hardening up to 32% due to an increase in the density of dislocations and the preservation of most of the dislocations in rolled metal during accelerated cooling of hot-deformed austenite. In wheeled steel, thermally treated by traditional technology (intermittent hardening and tempering), the main contribution to strength is the grain-boundary and dislocation hardening (~ 33%). In the same steel, subjected to surface plasma hardening, due to the strong grinding of the structure and formation of the nano-structured phase components, strength indices increase significantly (42%).

Diamond dressing plays a role in regenerating the polishing pad surface during Chemical Mechanical Planarization/Polishing process (CMP). The diamond dresser has many diamond grits distributed on the flat metal surface. During diamond dressing, cutting locus (CL) and overlap cutting points (OP) of diamond grits are created on the pad surface. Expectation of diamond dressing is that CL and OP must be covered all the pad surface and maintain soften, flatten and roughness of the polishing pad. This paper aims to apply a kinematic model and then propose a method for setting speeds for diamond dressing process on the current configuration of CMP tool. Prediction of CL and OP is implemented based on three main factors as rotational speed of pad, rotational speed on dresser and oscillation of dresser. It found that properly choose the speed of pad and speed of dresser can regenerate uniformity of pad surface with welldistributed CL and less OP density. This result can be applied to optimization CMP process

Textbook has become one of the primary materials in the teaching of Arabic language in Malaysia. Studies among scholars shown that the proficiency of Arabic language among non-native students is still at a low level due to many factors including the ineffectiveness of textbooks’ contents. Evaluation of a reading material takes into consideration of many aspects including the readability level, which is the difficulty level of a reading material. A quality textbook is a reading material that is easy to understand. This study discusses the readability of Arabic texts among the upper primary pupils in Al-Amin Islamic Primary School (SRI), Nilai, Negeri Sembilan. This study of readability has a role for documentation to facilitates the Ministry of Education, teachers, policymakers, textbook writers, and the related people in other fields.

Character education has been incorporated especially for primary (elementary) schools and secondary schools since 2010. This paper investigates the progress of the numbers of papers published internationally relating to character education. We compare the performance of Indonesian research to those of other countries’ research as well as to that of the world. We obtained that Indonesian research on character education grows significantly since the establishment of character education by Indonesian government in the Indonesian education system. This finding indicates that character education is indeed important for Indonesian students.

Justification of the optimal values of corn cob grinder in the process of pre-grinding the corn cob, reduce energy consumption and improve productivity. Thus, the urgent problem of today is the need to develop a new technology for grinding corn cobs for small peasant and personal subsidiary farms that have a productivity that meets their needs

Day by day vehicle population in the world is increasing and usage of fossil fuel is also increasing. The countries like INDIA are depending on other countries for the petroleum-based fuel and it will affect the development of the country also. The India has lot of resources to produce Liquid alternate fuels like Ethanol, Methanol, and BioDiesel etc. The viscosity of the Bio diesel is high compared to diesel fuel. So, due to high viscosity the atomization of fuel is less causes poor combustion, high in emissions. To overcome these problems Nano metal oxides are utilizing as a fuel additive in fuels for increasing the combustion as well as to reduce the emissions. The metal oxides like zinc oxid0e (ZnO), Cerium Oxide (CeO2), Aluminum Oxide (Al2O3) will donate the oxygen molecule in lattice structure during combustion process causes proper combustion. The present work is to check the performance, parameters of a CALOPHYLLUM INOPHYLLUM bio diesel and its blends (CIB10, CIB20, CIB30 and CIB100), results are compared with the diesel fuel. The aluminum oxide is added to the best blend at a proportion of 25 ppm,50 ppm and 75 ppm and the performance and emissions parameters are investigated

Along with the development of business based on web which is currently have used information Technology. The efficiency of the business in need is one reason why many small businesses that implement information technology. It plays a central role that is essential for the development of small business in theof era the times today, so the small business should have the ability quickly to adapt to changes that occur. The purpose of this study was to create a media sale clear and easily accessible by the consumer as well as easy to be managed by the smal business (CV. Tanaka Service). To that end, it was the design of information systems do web-based sales. This study will describe the activities and the products produced at each stage of the web design for CV. Tenaka Service. The design of this information system is limited only to the extent of information systems sales and the sales transaction database. At the final stage of the design, be the implementation of the web-based information system that is designed

There are many problems in the quality of the auto parts from the substandard production. This research was conducted by questionnaire and interview data obtained from automotive manufacturers in Thailand. The framework is tested using data from a broad spectrum of small and medium enterprises (SMEs). The statistical analysis using confirmatory factor analysis (CFA) and the level of risks were determined by evaluating the probability of occurrence and severity of risk factors. The results showed the types of risks that arise in the automotive supply chain in a very high-risk level that must be urgently resolved. Its effect on firm capability is examined. The results generally support theoretical predictions and interesting findings emerge.

Induction machines are widely used in many industries due to their robustness, ruggedness and easy maintenance feature. Due to the addition of power electronics devices and the complexity involved in the design of induction machines, their study and analysis can be very difficult. The use of software packages has been widely adopted to analyze and study the behaviours of induction machines. This work focused on the use of an engineering software package known as Laboratory Virtual Instrument Engineering Workbench (LabVIEW). It is used in this work to study the behaviour and characteristics of induction machines. LabVIEW was utilized due to its cheap and userfriendly feature. This work shows that induction machines can be completely analyzed using related mathematical equations for performance analysis

Along with the development of business based on web which is currently have used information Technology. The efficiency of the business in need is one reason why many small businesses that implement information technology. It plays a central role that is essential for the development of small business in theof era the times today, so the small business should have the ability quickly to adapt to changes that occur. The purpose of this study was to create a media sale clear and easily accessible by the consumer as well as easy to be managed by the smal business (CV. Tanaka Service). To that end, it was the design of information systems do web-based sales. This study will describe the activities and the products produced at each stage of the web design for CV. Tenaka Service. The design of this information system is limited only to the extent of information systems sales and the sales transaction database. At the final stage of the design, be the implementation of the web-based information system that is designed.

This study investigates the impact of migration on rice farming Technical efficiency in the Rokan Hulu District Indonesia. It as a measure of rice farming performance and a way to raise productivity without an increase in the inputs used. We investigate and discuss the technical efficiency of migrants and indigenous farmers in terms of characteristics and socio-economic conditions. We argue that it contributes to the policy-making basis in increasing rural economic growth. Furthermore, existing research focuses on rural-urban migration. But, we rarely found the literature on reverse flows and its impact, especially staple food crops. The primary data were obtained from interviews and analyzed using one step stochastic frontier production function. The study shows that migration has a negative impact on technical efficiency and indigenous farmers are more technically efficient than migrant ones. The rice farmers are expected to increase their average technical efficiency level by 13%. To reach their potential production, the farmers must improve their labor management

The aim of this paper is to find out the financial efficiency of new generation private banks operating in India during the period 2007-08 to 2016 -17. A Regression analysis is used to find out how the independent variables are supporting dependent variables. The study also aims in predicting how spread and burden of banks are influencing its financial decisions. It is observed that The variables like Spread to working fund, Spread to total income, Burden to total income, burden to working fund, Non-interest income to working fund, Interest expended to total income are positively correlated with net interest margin.

This article is based on the following scientific proposal, stated by the genius German physicist Max Planck: “No matter can exist on its own. All matter originates and exists only by virtue of a force which brings the particle of an atom to vibration and holds this most minute solar system of the atom together. We must assume behind this force the existence of a conscious and intelligent mind. This mind is the matrix of all matter“ [1]. The article discusses the wavelength function of the microcosmos, introduced by Planck as a component of system reliability and its sustainability. In this aspect, we are investigating ensuring reliable sustainability at the different levels of the structural and informational organization of the phenomena in our material world. The statement is maintained that the unified nature of the reliability of the various phenomena is based on the unity of the "microcosmos" - its material nature and the capability for duality and transformations.

This study investigated the economic impact of gender diversity on Board composition of companies listed on the Nigerian Stock Exchange (NSE). Based on the grouping of fifty most capitalized companies on the NSE into companies with no female on board and those with at least one female on the board, the firm performance was analyzed with Mann Whitney U -test over a three-year period. We also examined whether there was any significant difference between the performance of boards with only one female and those with more than one female. The results show no significant difference in the performance of both groups. This is due to moderately heterogeneous board composition as a result of few females in top level decision-making. We recommend a policy mandating listed companies to evaluate their employment and selection methods regarding nomination and promotion into boards and management teams.

One of the most effective ways to learn is through problem solving. In recent years, it is widely known that problem solving is a central subject and fundamental ability in the teaching and learning. Besides, problem solving is integrated in the STEM+C (Science, Technology, Engineering, and Math plus Computing, Coding or Computer Science) fields. Intelligent tutoring systems (ITSs) have been shown to be effective in supporting students domain-level learning through guided problem solving practice. Intelligent tutoring systems provide personalized feedback (in the form of hints) to students and improve learning at effect sizes approaching that of human tutors. However, creating an ITS to adapt to individual students requires the involvement of experts to provide knowledge about both the academic domain and novice student behavior in that domain’s curriculum. Creating an ITS requires time, resources, and multidisciplinary skills. Because of the large possible range of problem solving behavior for any individual topic, the amount of expert involvement required to create an effective, adaptable tutoring system can be high, especially in open-ended problem solving domains. Data-driven ITSs have shown much promise in increasing effectiveness by analyzing past data in order to quickly generate hints to individual students. However, the fundamental long term goal was to develop “better, faster, and cheaper” ITSs. The main goal of this paper is to: 1) presents ITSs used in the STEM+C education; and 2) introduce data-driven ITSs for STEM+C education.

The main cause of damage to oil and gas equipment is wear. This paper proves that the principal wear mechanism is abrasive and shock-abrasive wear; and analyzes materials test methods and techniques for wear rate identification. The author considers standardized and non-standardized methods and establishes that despite a large number of materials test methods, we don’t have a unique one for adequate assessment of wear resistance in metals. It is concluded that selection of test methods depends on working conditions of the equipment and use of different types of wear to assess resistance of metals.