bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of Sustainable Site Selection Using Analytical Hierarchy Process for Hospitals: Karbala City as A Case Study
Authors: Ali Mohammed Hussein , Neamah Ahmed Mohammed , J. Alsaad Aymen
Published: April 2019

Site selection for a hospital location is one of the pivotal strategy- related decisions taken by the government. The selection of a suitable site for a hospital requires consideration of multiple alternative solutions and assessment factors. The present study aims at determine the optimum site out of three alternative sites to build a new hospital in Kerbala city. The main sustainability factors are; urban factors (including size, accessibility, restrictions, availability), environmental factors (including geomorphology, hydrology, vegetation, climate, other environmental factors) and economic factors (including service and utilities, cost) factors. The Analytical Hierarchy Process (AHP) as a multi criteria decision support system was adopted to find the weights of each factor and reach to select the most suitable site from three alternative sites. The results showed the site number (2) was the most sustainable site to construct the hospital project, where the alternative site records a biggest normal index of 0.419.Â Â
Effect of Hollowing Ratio on the Behavior of Hollow Self-Compacting Reinforced Concrete Slender Column Under Eccentric Loading
Authors: A. S. Al- Shaarbaf Ihsan , J. H. Al-zubaidi Mohammed , A. A. Al- Zaidy Emad
Published: April 2019

In this research the behavior of reinforced concrete slender columns with longitudinal hole under axial compression load and uniaxial bending is investigated. The paper includes testing of ten slender columns with dimensions (150 150 1300 mm). The investigation deals with the effect of using different diameters ofÂ  column hole on the values of the load carrying capacity and cracking loads, mid-height lateral deflection and longitudinal shortening of the columns. Five diameters for the column holes were considered (0, 25.4, 38.1, 50.8,Â  and 76.2)mm. Test results have showed that when the holes were located at the center of the column cross-section and the column was loaded with high load eccentricity, the effect of hollowing ratio on load capacity is insignificant. For hollowing ratios used in this study (0%, 2.3% ,5.1%, 9% and 20.3%), the ultimate load is decreased by (0%, 0.28%, 1.03%, 3.28% and 6.48%) respectively. The effect of hollowing ratio on columnsÂ  loaded with small eccentricity of 50mm (e/h=.33)Â  is greater than the effect of hollow ratio of columns with 150 mm eccentricity(e/h=1.0) which reduces the load capacityÂ  for the columns by (0.00%, 0.66%, 2.65%, 4.97% and 11.26%) for hollowing ratios (0%, 2.3%, 5.1%, 9% and 20.3%) respectively.Â Â
Identify the Appropriate Key Performance Indicators for Evaluating the Performance of Construction Companies in Iraq
Authors: S. Tofan Ali , K. Breesam Hatem
Published: April 2019

After 2003, Iraqi market has been opened in front of the world. Many of international companies have entered to the Iraqi construction market. This has led to high competition between construction companies, especially the governmental companies under the Ministry of Construction and Housing. Competition has put a strong pressure on the construction companies to continuously improve their performance. There has been a lot of research for measuring performance at the project's level, but there is a clear lack of research on the performance measurement at the companies' level. The current method of performance evaluation is relying solely on financial indicators, which cannot be the only factor for evaluating performance. Other indicators such as customer's satisfaction, work efficiency, effective planning, etc. have become of great importance to the company success. The research aims are to identify the appropriate set of key performance indicators to measure the performance of construction companies in Iraq. A questionnaire forms have been distributed which includes main performance indicators that derived from the previous studies which affect the construction companies. in conclusion, 10 KPIs selected for the construction companies that can be the start point to make a comprehensive framework for the construction companies in Iraq.Â Â
Using Waste Asphalt Concrete (WAC) for Improving Poorly sandy Graded (PSG) Subgrade Soil
Authors: Khawla H. H. Shubber Asst. Prof. Dr. , Ali S. M. Alkizwini Eng.
Published: April 2019

Waste asphalt concrete (WAC) is one of main current sustainable problems facing accumulation in high quantities as a result of the highways failure, maintenance and reconstructions. On the other hand, presence of large amounts of poorly sand graded (PSG) soil near rivers, which are not suitable in case of using it as subgrade soil. So, present research focusing on study the effect of adding WAC on the properties of PSG soil. Modified Procter test, California Bearing Ratio test (CBR), Direct Shear test were depend on evaluating the stabilized soil properties (i.e. dry density, optimum water content, CBR, and direct shear).  PSG river soil used as subgrade soil in this research brought from sides of Sadit AL- Handayi in Babylon Governorate located in middle west of Iraq, about 60 km south west of Baghdad, capital of Iraq. Percent of adding are (12, 24, 36, and 48)% by weight. Results showed that the adding of WAC increase the dry density in different rate. While the optimum water content decrease with increasing WAC added. Direct shear of stabilized soil increase while angle of internal friction decrease with increasing of added WAC. CBR values increase with increasing WAC added.
Strength and Ductility of Bubbled Wide Reinforced Concrete Beams with Diverse Types of Shear Steel Plates
Authors: Mohamed Ibrahim Amer , Abdullah Mansor Ahmed , D. Salman Wissam , Jaafar Hamood Mohammed
Published: April 2019

This paper presents an experimental investigation on the strength of bubbled wide reinforced concrete beams with different types of shear steel plates. Eight specimens with dimensions of 215x560x1800mm were investigated. The studied variables deal with replacement of 10mm stirrups diameter stirrups spaced at 125mm by shear steel plates having equivalent cross-sectional area for stirrups at mid legs height with circular opening of different thicknesses (3, 4 and 5mm). Four specimens were without any bubbles and the others with bubbles. This study showed that the shear steel plates is a good alternative for replacing the stirrups and gives increasing in yield, ultimate load and deflection (at service load) with 5% , 15% and 9% on the average when using the bubbles. Without using bubbles, the aspect ratio of shear steel plates bounded between the boundaries 4.5 to 8 gave increased the ductility by 36%. Using the bubbles in specimens was decreased 4.7% from the total weight of specimens. ACI 318-14(1) and EC 2(2) codes give a predicted deflection more than that obtained from experimental results by 16% on the average and by 24% when using bubbles.Â Â  Â
Experimental and Numerical Modeling of DNAPL Mass Discharge from the Elliptic Pool in Saturated Homogeneous Sandy Soil
Authors: Asal Gzar Hatem , Abdulwahed Hussain Rasha
Published: April 2019

"The present study aims to study the dissolution and mass transport of trichloroethylene (TCE) as Dense Non Aqueous Phase Liquid (DNAPL) in saturated porous media." A rectangular Perspex tank of internal dimensions (150cm length 20cm width and 40 cm height) used to represent the model aquifer. The tank was packed with homogenous soil (Karbala sand)"."Unidirectional flow at five different interstitial velocities (0.9, 1.8, 2.34, 2.7, and 3.6) cm/hr assumed to study the process. The average mass transfer coefficient" was determined for each velocity .Their values were increased with increasing the velocity reaching a limit value" .A conservative tracer is used to obtain the longitudinal and transverse aquifer dispersivities"."An elliptic shape of (TCE) pool was used to carry out the dissolution processes. Steady state dissolved (TCE) concentrations at downstream were collected from ten ports with two different depths under five interstitial velocities". Two linear relationships are created from an elliptic trichloroethylene pool: these relationships were between the average Peclet number in x-direction (Pe*x(e)) with the overall Sherwood number (Sh*(e )), and the other between the average Peclet number in y-direction (Pe*y(e) ) with the overall Sherwood number (Sh*(e))". A numerical modeling was achieved using COMSOL software.Â Â
Frequency Reuse for Coexistence of Secondary Users and Optimum Utilization of Bandwidth
Authors: Annapurna K. , CK Meghalatha , Seetha Ramanjaneyulu B.
Published: April 2019

Cognitive radio technology is a promising technology to address the spectrum underutilization of licensed users, called primary users and extreme requirement of unlicensed users, called secondary users. Day to day spectrum requirement of secondary users is being increased dramatically and results in increased blocking and dropping. Call dropping is more exasperating than call blocking. So to reduce the call dropping of secondary users, some of the researchers proposed channel reservation techniques. But they got improved dropping results at the cost of increased blocking. So frequency reuse is proposed in this paper, which improves both blocking and dropping.
Power Spectral Density Estimation and THD of Motor Line Currents of AZSPWM Based DTC of Induction Motor Drive
Authors: Lakshmi V. Anantha , G Satheesh. , Reddy T. Bramhananda
Published: April 2019

Estimating the power distribution over a given frequency range and the total harmonic distortion of the line currents of the AZSPWM based induction motor drive is discussed in this paper. Applying a spectrum analysis on the motor line currents and inspecting the spectrum amplitudes at different switching frequencies for abnormality is a well-known procedure for acoustic noise detection and diagnosis. Among the spectrum analysis techniques for acoustic noise detection, the Fast Fourier Transform (FFT) is the most widely used technique. There are other spectrum techniques, which are based on the power spectral density (PSD) estimates. AZSPWM based DTC of induction motor currents are estimated for the power spectral densities. The harmonic spectra and the power spectral density estimates of all AZSPWM family are validated through the MATLAB/ simulink environment.
A Study on the Concept of Employees Customer Orien-tation and its Impact on Competence Development
Authors: Madhavi Thaya , Mehrotra Rajesh
Published: April 2019

It is thought world over that customer orientation of employees needs to corporate success. It constitutes the major element of customer service thrown open by customer oriented service personnel to decide upon the great success of the business firm. Customer oriented service personnel are bestowed with communication, technical, problem solving skills, personality traits and commitment. Anticipating customer wishes and these in advance, and to act accordingly by customer oriented service personnel is a pivotal factor for the progress of an organization. This paper intends to study the concept of operational level employees orientation towards customers and its implication for competence development.
A Multi Stage Approach for Urban Building Extraction from Remote Sensing Satellite Images
Authors: Pendyala VSSN Gopala Krishna , Kalluri Hemantha Kumar , Rao C.V.
Published: April 2019

The most important parameter for urban information system is the building information which is represented by the geographic location of the buildings as well as the area, perimeter, density, inter building distances. This data is integrated with demographic data for various applications. High resolution Remote sensing images are widely used as primary data for automatic extraction of building information. Many researchers have developed different methods for maximizing the detection percentage with minimum errors. This paper analyzes the primary data available for researchers, deriving the secondary information and utilizing it effectively. Case studies by various researchers were analyzed and a methodology has been outlined using their experiences, which is expected to be more efficient and reduced errors.
Simulation in Single and Multi-Flow Direction of Airflow Sensor
Authors: Che Abdullah Sukarnur , Dzulhelmy bin Amari Mohamad , Shafiq bin Abdullah  Sabil Amirul , . .
Published: April 2019

This paper investigates simulation of air flow acting on the airflow sensor using the Computational Fluid Dynamic (CFD) approach. Simulation is carried out to evaluate the performance of airflow sensor by analysing small change of the air flow acting on the airflow sensor structure. Identification of the characteristics and parameters for the sensor in motion was done to achieve higher accuracy of the airflow result. Analyzation stage from the obtained data comprehending the behaviour of the airflow in higher accuracy while sensor in motion will be verified by detection of high sensitivity in relative velocity of the airflow sensor compared to conventional sensor. Therefore, an analysis was conducted with three different airflow directions involving necessary boundary condition and parameter. The efficiency from the tabulated data for dynamic motion has also been determined by comparing simulation data with calculation. All simulations and analyses were completed using the ANSYS software.
Emotional Intelligence in Soft Skills: First-Class Human Domain Generating
Authors: Johar Siti Sarawati
Published: April 2019

The focus in this short study is to clarify the soft skills development by the emotional intelligence standpoint purposing for generate the first-class human domain (emotional, mentality and behaviour) as a human capital. Discussion on issues of human development scenario, the importance of emotional intelligence and the importance of soft skills will discuss in detail. The year 2020 is targeted by Malaysia to becoming a developed country with our own way. The exact aspiration is to develop the ideal human capital in balance with the emotional intelligence and acceptable mindset fitting the way of life from one generation to one generation. The stable countryâ€™s development in politic, economic and social field are significant to human value as mentioned in Maslowâ€™s theories. Many of world civilizations always noted by the best achievement in the fact of physically facilities, infrastructures, level of literacy, stable economic status and political that able to influence the world order. Unfortunately, some of world society lives in absent of holistic value, inconsiderate, depression and lack of religion grasp. Historically Malaysia has been colonized by European around 446 years. Some of social, economy and political patterns influenced the Malaysians way of living. Some actions should be considered to preserve our valuable traditions, norms, culture inherited by our relatives from different demographical background. Those values supposed as the truly image of first-class human capital incorporated with the developing and generating the art of emotional intelligence in soft skills among Malaysian students.
Investigating the ppp theory and long-run estimates for five Asian countries
Authors: Choji Niri Martha , Sek Siok Kun
Published: April 2019

The theory of purchasing power parity (PPP) theory posits that the conversion rate between two currencies ought to be the same as the ratio of the total price levels between two currencies. Using monthly recent panel data for five Asian countries, from the period 1996M01-2016M08, the paper examined the PPP theory by utilizing robust methods of panel unit root and cointegration (Pesaran and Westerlund) tests that put into consideration cross-sectional dependence. The panel unit root test results show that all the variables considered are not stationary at levels but stationary at first difference (all variables are I(1)), because of that, the cointegration test was carried out. Results showed the presence of long-run relationship among the variables implying that the purchasing power parity theory exists in the long-run. Furthermore, the long-run relationships were estimated using the dynamic ordinary least squares (DOLS), fully modified ordinary least squares (FMOLS) and the mean group (MG) estimators. Surprisingly, all these estimators gave similar results, they showed that the domestic prices cause depreciation while the foreign prices cause appreciation of the nominal exchange rates in the five Asian countries. Generally, the effect of nominal exchange rate appreciation is more than depreciation in the five Asian countries.
The Effect of Dividend Policy on Share Price: A Conceptual Review
Authors: Raza Hamad , Ramakrishnan Suresh , Gillani Syed Muhammad Ahmad Hassan , Ahmad Humara
Published: April 2019

In modern corporate world, dividend policy is one of the most debatable issues in corporate finance. The academic literature related to effect of dividend policy on share price has grown rapidly over the previous decade, due to its puzzling phenomena. The present study intends to conduct a non-systematic review of literature on the empirical and theoretical studies on corporate dividend policy in order to understand its nature and dimensions. In this concern, an extensive review of existing literature has been performed and it is found that there are three different approaches or schools of thought. First school of thought is that a rise in dividend payout will increase the firm value (share price). Second, thinks that a rise in dividend payout will reduce the firm value (share price) and third supports Miller and Modigliani (1) argument that firm value or share price are not affected by dividend policy. Till to date no consensus has appeared and results are inconclusive. This article also attempts to cover key empirical studies on dividend policy across countries, which shows that the phenomena of dividend policy differ from one country to another. The continuing nature and wide array of discussion on dividend policy has formulated a massive volume of literature that increase day by day. Therefore, it not feasible to do a full-fledge review of all debates.
Exploring Underpinning of Outsourcing Success: A case of Multinational Automotive group in Malaysia
Authors: Latif Kashif , Ismail Mohd Nazari , Nazri Mohammad , Nor Mohd Roslan Mohd , Qureshi Muhammad Imran
Published: April 2019

This study explored underpinning of outsourcing success by analyzing different theories of outsourcing. This study is unique in its nature as it used interpretive paradigm to explore, analyze outsourcing success theatrically by comparing different phases of outsourcing, then the case of Boeing analyzed in the context of outsourcing and after that come up with real time case study of one big automotive group operating in Malaysia through using semi structured interview by developing and comparing themes of this study. This study figured out that cost reduction and efficiency can be attained by creating economies of scale, using and managing vendors appropriately with the combination of efficient strategic alliance.
Scientific Substantiation of Thermal Leveling for Deformations in the Car Structure
Authors: Fomin Oleksiy , Logvinenko Oleksandr , Burlutsky Oleksiy , Rybin Andriy
Published: April 2019

Railway transport is the foundation of the transport complex and part of the transport network of logistics chains. However, significant deterioration of rolling stock units (especially freight cars accounting for the greater part of all transportation) is an urgent problem of the rail industry. Therefore, the problems of renovation of the existing freight car fleet by developing and introducing domestic models which can effectively compete in terms of the technical and economic and operational indexes are of crucial importance. But the car structure suffers from various deformations at all service stages (production, maintenance and operation). The main type of these deformations is residual ones developing during the welding procedure, due to the thermal effect. Therefore, the issues concerning elimination of these deformations in production and maintenance are becoming ever more urgent. In particular, the most recognized and economy-oriented approach in the field is the one based on the thermal leveling of welded structures. The implementation of this approach requires some research aimed at scientific substantiation of the thermal leveling, as well as, specification of forms and heating temperatures, determination of heating form sizes, thermal leveling simulation and experimental verification of the results, optical microscopy and determination of mechanical characteristics.
Driven Camshaft Power Mechanism of the Vehicle Diesel Engine Fuel Pump
Authors: Мoroz Mykola , Korol Serhii , Chernenko Serhii , Boiko Yurii , Vasylkovskyi Oleksii
Published: April 2019

The article deals with the actual problem associated with poor-quality operation of vehicle engines with incomplete loading and operation at partial high-speed modes. It is shown that such engine operating modes make up the bulk of the time, especially when the vehicle operates in urban conditions. Poor engine performance in these modes results in decline in fuel economy and environmental performance. To improve the technical performance of diesel engines, a device is proposed that allows control the uneven rotation of camshaft of vehicle diesel fuel pump. The kinematic schemes of the angular velocity transducers for fuel pump camshaft power mechanism, the kinematic and power drive calculation method are developed.
Safeguarding of Goods During Railway Shipping
Authors: V. Lomotko D , O. Kovalov A , V. Kovalova O , V. Shuldiner J
Published: April 2019

The definition of estimation criterion of rolling stock availability for certain freight loading is given in this work. The level of commercial availability of cars is proposed as a criterion. The graphic display of the availability level of cars for loading depending on the service life of a car and with account for corresponding repair works and maintenance is represented. The dependence of the type of goods or the group of goods on the level of commercial car availability required for safeguarding during transportation of goods, for safety of operation and continuity of the rolling stock is introduced to provide the corresponding level of commercial rolling stock availability for the freight owner. The variant of the requirement formation for provision of cars using the category of commercial availability and the quantity of cars of the corresponding type is given, and the example of problem solving of supplying the freight owner with the cars of commercial availability that are not lower than needed is also proposed.Â
Research of Changing the Driver's Reaction Time in the Traffic Jam
Authors: Gyulyev Nizami , Lobashov Oleksii , Prasolenko Oleksii , Burko Dmytro
Published: April 2019

In this research the main attention is paid to establishing dynamics of changes in the driverâ€™s reaction time in a traffic jam that affects traffic safety.With the help of the regression model, graphs of driverâ€™s reaction time are constructed taking into account different age groups and types of the nervous system depending on the initial level of fatigue at the entrance to traffic jam and duration of traffic jam.Analysis of these graphs allowed us to establish trends in the driverâ€™s reaction time in traffic jams, which indicate an increase in the driverâ€™s reaction time with an increase in the time spent in the traffic jam. However, at the beginning of the traffic jam, depending on the initial fatigue level, different combinations of the reaction time change occur at the entrance to the traffic jam: at low values, the reaction time increases, and at high values it decreases. It was also found that the traffic jam has a different effect on the reaction time of drivers depending on their temperament. For the reaction time of the driver-phlegmatic traffic jam does not have a significant impact.Â Â
Determination Parameters of a Hybridvehicle in Its Life Cycle
Authors: Volodarets Mykyta , Kletska Olha , Hatchenko Viktoriia , Shuleshko Dmitriy , Kosariev Oleg
Published: April 2019

This work considered methods of selection of power plant and energy storage of hybrid vehicle. An analysis has been performed and its shortcomings are indicated. A generalized scheme to define optimal technical and economic indexes of hybrid vehicle is drawn up and adapted for shunting locomotive. A model was created on its base with appropriate restrictions, which takes into account the shortcomings of existing models.Parameters of different types of hybrid locomotives based on diesel locomotives series ChME3 were defined, depending on type of operation. Comparative traction characteristics of shunting locomotive series ChMe3 and diesel locomotive with hybrid transmission on the its base were built. Relevant calculations were fulfilled using these characteristics.Â
Research of Operation Factors of the of Bullerjan Stove in the Program Environmentfor 3D Simulation
Authors: Kagramanyan A. , Onishchenko A. , Babichenko J. , Podoprigora A.
Published: April 2019

The article is devoted to the calculation of the thermal power of the Bullerjan stove according to a preconstructed model, which is realized in the 3D modeling environment of SolidWorks 2016. The thermophysical characteristics of the processes passing through the heat pipes of the Bullerjan stove were studied in detail. In the course of the work, the values of airflow velocity and temperature distribution, the temperature distribution of a solid, the surface of the heat pipe, that in the end allowed us to obtain the values of the heat output of the oven. The obtained data made it possible to determine the value of the heat output of the oven on the mode of smoldering wood and on the mode of flaming burning. The thermal power of a Bullerjan stove and in particular, its flow simulation module for modeling the flow of liquids and gases were obtained.Â
Energy Saving for the Suburban Rolling Stock
Authors: Sumtsov Andriy , Falendysh Anatoliy , Chyhyryk Nataliya , Vasilenko Oleg
Published: April 2019

This article is concerned with the problem of energy savings and rise of comfortableness of railway rolling stock. Done analysis has shown the insufficient paying attention to the energy efficiency of suburban rolling stock. In particular, to the problem of heat comfort for passengers. For this purpose, a procedure was carried out for the thermal audit of electric trains, taking into account the prevailing array of required indicators. To determine the sites of local heat losses, there was done the thermal-imaging inspection of the electrical train ER2 series during which it was determined the local sites of heat losses and entry of cold air. Besides the passenger compartment, there were inspected the outer body liner and driver's cabin. As a result of inspection of driver's cabin, it was found the bad quality of a sealing layer for side small windows from one side. On the basis of inspection, the recommendations for elimination of found irregularities were developed.Â Â Â
Modern Approaches to Ensuring the Competitiveness of Railway Transport in the Context of the European Integration
Authors: M. Posokhov I. , V. Chepizhko E.
Published: April 2019

The article provides a comparative analysis of the place of Ukraine in the international rankings such as GCI, Doing business, IEF, SPI, CPI. The necessity of transformation and socio-economic features and indicators of development of the existing economic model of Ukraine are researched. The main reasons for the low level of management quality of the enterprises are identified and analyzed. The world experience of the structure of elements and implementation of organizational and economic mechanism of managing the competitiveness of enterprises of individual countries with the most successful indicators of economic development is researched. The main problems of the railway industry and the necessity of continuous improvement of the enterprise competitiveness management system are determined. The article outlines the main directions of increasing the competitiveness and development of rail transport.Â Â
Methodological Aspects of Implementation of the Safety System in the Activity of Hotel and Catering Industry Enterprises
Authors: Prokhorova Viktoria , Davydova Oksana , Protsenko Valentina
Published: April 2019

The essence of the HACCP system is revealed. The urgency of the development and implementation of the HACCP system in the hotel and catering business enterprises is proved either. The conceptual aspects of the HACCP methodology are presented that allows to maintain the focus on the safety and quality of the products and services of the hotel and catering industry as the highest priority. The successive stages of the HACCP system implementation in the hotel and catering business have been developed. The checklist for analyzing the risks of the process of reception and accommodation of the consumers at the hotel is presented either. It has been proved that the development and implementation of the HACCP system will provide the hotel and catering industry with the competitive advantages.Â Â Â
Ensuring Competitiveness of Logistics Service by Selecting the Type of Storing Single-Piece Cargoes
Authors: Trunina Iryna , Zahorianskyi Volodymyr , Zahorianska Olena , Moloshtan Dmytro
Published: April 2019

Efficient transportation of cargoes from the point of the cargo traffic start to the final consumers can significantly influence competitiveness of logistics service that leads to the necessity of analysing the known approaches to substantiating the selection of the storing type (pile storage or rack storage) when warehousing single-piece cargoes. To formalize the problem of selection based on the analysis, the authors develop the model, which is suggested to use the quantity of the stored pallets with single item cargoes. The calculations according to the suggested mathematical model envisage intensive computations with repeated calculations; therefore the corresponding recursive algorithms are developed for this mathematical model. The corresponding recursive algorithms for the model are easily realized in the software product. The developed algorithms can be easily realized in the software product with graphic interface on the enterprises delivering logistics services to enhance their competitiveness.Â Â
Priority approach as an effective tool for managing social development of personnel in the context of social management in enterprises
Authors: Chupyr Olena , Kalinichenko Liudmyla , Ustilovska Anastasiya
Published: April 2019

To ensure a stable, highly efficient operation of enterprises, it is necessary to create a scientifically based system for managing all aspects of their activities, in particular, pay special attention to the planning of social processes. The essence of social management determines its formation and functioning as a system. In order to avoid scattering of the funds allocated for social development of personnel, it is necessary to determine the primary social objectives and appropriate funds for their implementation. In this regard, a model of a scientifically based system for planning social development of personnel has been proposed, using a priority approach to social management based on assessing the level of social development of personnel, which will help focus on the objectives that are most important for the enterprise and concentrate financial resources in the most important areas of its social development. It is necessary to plan the expenses for social development of the enterprise with a real consideration for the opinions of the personnel, which is possible through defining the social priorities by the quantitative method on the basis of processing the results of a survey of employees.Â Â
Design of Student Worksheets based on Learning Cycle 5E Learning Model for VIII Junior High School Students in Indonesia
Authors: Nurâ€™Afifah Rima , Man Supar
Published: April 2019

The ability of a mathematical connection is one of the skills that must be possessed by students in the learning process of mathematics. Connecting mathematical concepts to gain a meaningful learning. Learning cycle 5E is one of the learning models that could improve students' mathematical connection ability. Student worksheet is a teaching material which is in the form of papers containing a summary of the materials, a guide for independent studying that refers to the basic competencies needed to be achieved. This article aims to develop a student worksheet design that provides an opportunity for students to optimize students' mathematical connection ability in the independent learning process based on the 5E learning cycle model. This research is for the development of the ADDIE model which consists of four stages, which are: analysis, design, development, implementation, and evaluation. This research is only up to the design stage. The subjects of the study are the students of SMP IT-Abu Bakar and MTs Mu'allimat Muhammadiyah Yogyakarta Indonesia. The instruments of the data collecting included interview sheets, document sheets, and description sheets. Interview sheets for retrieving curriculum data and student characteristics, document sheets for evaluating teaching materials, and description sheets for determining students' mathematical connection ability. Data analysis techniques uses qualitative data analysis. This research resulted in the design of student worksheets that fit the characteristics of students, curriculum, and teaching materials as well as packaging it based on the LC 5E model to provide a meaningful learning experience. Student worksheets are designed to facilitate students in learning activities and provide opportunities for students to optimize mathematical connection capabilities that are integrated into the learning model LC 5E.
A Comparison of OLS and Ridge Regression Methods in the Presence of Multicollinearity Problem in the Data
Authors: Shariff N S M , Duzan H M B
Published: April 2019

The presence of multicollinearity will significantly lead to inconsistent parameter estimates in regression modeling. The common procedure in regression analysis that is Ordinarily Least Squares (OLS) is not robust to multicollinearity problem and will result in inaccurate model. To solve this problem, a number of methods are developed in the literatures and the most common method is ridge regression. Although there are many studies propose variety method to overcome multicolinearity problem in regression analysis, this study proposes the simplest model of ridge regression which is based on linear combinations of the coefficient of the least squares regression of independent variables to determine the value ofÂ  k (ridge estimator in ridge regression model). The performance of the proposed method is investigated and compared to OLS and some recent existing methods. Thus, simulation studies based on Monte Carlo simulation study are considered. The result of this study is able to produce similar findings as in existing method and outperform OLS in the existence of multicollinearity in the regression modeling.
Development and Effectiveness of Interactive Learning Media For Mathematical Logic and Set Towards Studentsâ€™ Self Confident on Computer.
Authors: Fahmi Syariful , Priwantoro Soffi Widyanesti , Cahdriyana Rima Aksen
Published: April 2019

This research aims to find out how to develop and produce interactive learning media using Adobe Flash CS3 for students of mathematics education in the course of mathematical logic and Set in class D academic year of 2017/2018, as well as how the quality of the resulting learning media. The population in this research is the entire class D in first semester student in Mathematics Education academic year of 2017/2018. The model used is the development model of Borg and Gall which includes: (1) analysis of the content standards, (2) the collection of references to interactive media, (3) the preparation of draft interactive media, and (4) creation of interactive media in the form of digital discs (CD). Interactive multimedia has produced score of good quality according to the assessment of the learning material experts, media experts, and students of Class D academic year of 2017/2018, with an average score was 209.48 with maximum score of 260. The effectiveness toward studentsâ€™ confidents on computer shows there, 73.81% of students feel able to get good grades if learning with computers, 57.14% of students feel very confident when starting to learn with computers, and 50% students learn to feel confident with computers.
GPS Tracker Through HF Radio Using FSK Method
Authors: Homam M J , Khazali M F M , Kamaruddin S
Published: April 2019

A GPS tracker through HF radio using FSK method for Blue Force Tracking (BFT) application was developed. The project aims to transmit and receive the location information which is obtained from the GPS data. The system used frequency range of 500 Hz to 2000Â Hz for modulating and demodulating the GPS data using FSK method. The smallest frequency gap between characters without affecting the accuracy of the output is 100 Hz, but the transmission time per character must be set to 100 ms. The transmission speed was investigated to find the optimum speed of the system by varying the delay command in the program. The system can accurately transmit and receive the location data in 1350 ms per coordinate. In general, the developed system successfully maintains the performance of transmitting and receiving the location information which can be applied for the future advancement of the BFT.
Fuzzy Finite Switchboard Automata with Complete Residuated Lattices
Authors: Ebas Nur Ain , Hamzah Nor Shamsidah Amir , Jacob Kavikumar , Rusiman Mohd Saifullah
Published: April 2019

The theory of fuzzy finite switchboard automata (FFSA) is introduced by the use of general algebraic structures such as complete residuated lattices in order to enhance the process ability of FFSA. We established the notion of homomorphism, strong homomorphism and reverse homomorphism and shows some of its properties. The subsystem of FFSA is studied and the set of switchboard subsystem-forms a complete Â -sublattices is shown. The algorithm of FFSA with complete residuated lattices is given and an example is provided.Â
Interaction Effects on Prediction of Children Weight at School Entry Using Model Averaging
Authors: Pillay Khuneswari Gopal , Avtar Sya Sya Syahira Muhammad Fitri , Abdullah Mohd Asrul Affendi
Published: April 2019

Model selection introduce uncertainty to the model building process, therefore model averaging was introduced as an alternative to overcome the problem of underestimate of standards error in model selection. This research also focused on using selection criteria between Corrected Akaike's Information Criteria (AICC) and Bayesian Information Criteria (BIC) as weight for model averaging when involving interaction effects. Mean squared error of prediction (MSE(P)) was used in order to determine the best model for model averaging. Gateshead Millennium Study (GMS) data on children weight used to illustrate the comparison between AICC and BIC. The results showed that model selection criterion AICC performs better than BIC when there are small sample and large number of parameters included in the model. The presence of interaction variable in the model is not significant compared to the main factor variables due to the lower coefficient value of interaction variables. In conclusion, interaction variables give less information to the model as it coefficient value is lower than main factor.
Effect of Light on the Photosynthesis, Pigment Content and Stomatal Density of Sun and Shade Leaves of Vernonia Amygdalina
Authors: Idris Aisha , Linatoc Alona C. , Aliyu Aisha M. , Muhammad Surayya M. , Bakar Mohd Fadzelly Bin Abu
Published: April 2019

Light affects the growth and development of plants by influencing the physical appearance of one leaf as well as the appearance of the whole plant. Plant photosynthesis, stomata density, and pigment contents are all influenced by light The objective of this research is to determine the effect of light on the photosynthesis, pigment content and stomatal density of Sun and Shade Leaves of Vernonia amygdalina. Gas exchange was measured using Li-6400 and the data obtained was used to create a light response curve where parameters including light saturation point (LSP), light compensation point (LCP) and apparent quantum yield were estimated. Photosynthetic pigment were quantified spectrophotometrically.Â  Moreover, the stomatal density was counted under light microscope, after making a nail polish impression of the leaf. The results discovered shows that as the light intensity increases, the gas exchange and stomatal density increases while the photosynthetic pigment of the studied plant decreases (P<0.05). In addition, LSP and LCP increases with increasing light intensity. Besides, statistically significant negative correlation (P<0.05) was achieved among stomatal density and transpiration rate thereby leading to a conclusion that sun leaves of Vernonia amygdalina contribute the highest assimilation rate to the plant than shade leaves. Yet, the higher stomatal density of sun leaves provides water saving to the plant.
Behaviours of Bursa Malaysia: a Multidimensional Network Analysis
Authors: Lim San Y. , Salleh Rohayu Mohd , Asrah Norhaidah Mohd
Published: April 2019

In current practice, the similarities between two or more univariate time series of stocks are determined by using the Pearson correlation coefficient (PCC). However, the economic information might be misleading if the analysis applies only the univariate time series of stock price, as each stock is denoted by four types of prices. Therefore, multidimensional of stocks are taken into account in this paper. The similarities between two or more multi-dimensional of stocks are quantified by using Random Vector (RV) coefficient. Additionally, an algorithm is proposed due to the computational of RV coefficient is tedious and time-consuming when a large number of stocks are included. In this paper, the Malaysian stock network analysis in univariate and multivariate setting are conducted and analysed by using the PCC, RV coefficient, forest of all possible MSTs and centrality measures. In summary, there is some important economic information could not be brought out by univariate network analysis alone.
Influence on the Phase Formation and Strength of Porcelain by Partial Substitution of Fly Ash Compositions
Authors: Kutty Nur Azureen Alwi , Noh Mohamad Zaky , Mayzan Mohd Zul Hilmi , Iya Sani Garba Durumin
Published: April 2019

This paper presents the study of the influence on the phase formation and strength of the porcelain by the partial substitution of fly ash. The fly ash was calcined at the temperature of 800 Â°C and partially substituted into feldspar. Each mixture were mixed and pressed into green pellets sintered at different sintering temperature (1100 â€“ 1300 Â°C) at the interval of 50 Â°C for 120 min. The compressive strength, crystalline phase and the microstructure of the porcelain were investigated. The optimum physical and mechanical properties were obtained at 5 wt % of fly ash porcelain sintered at 1250 Â°C. The apparent porosity reaches a minimum value with 0.22 % which is nearly to zero and obtained the highest compressive strength of 105.40 MPa. The XRD results reveal that the highest percentage of mullite was obtained at the substitution of 5 wt % of fly ash with 49.0 %. The glassy phase shows an increasing trend with dissolution of mullite content which affects the strength and microstructure of the porcelain.
Brainwave Analysis for Robot Movement Depending on Age and Sex Differences
Authors: Sahat Norasyimah , Alias Afishah , Yassin Fouziah Md
Published: April 2019

A Brain-Computer Interface (BCI) is a direct communication pathway between a human and external device. This system is very useful especially for disabled people as their brainwave still can emit electrical activity and can move the machine even with severe motor impairments. This research aims to investigate the brain waves produced by humans in terms of attention level for robot movement based on sex and age category of children (6-12 years), teenagers (18-25 years old) and adult (30 years and over). An Electroencephalography (EEG) device called Neurosky Mindwave Mobile has been used to obtain brainwave signals produced by humans. There were five aspects of robot movement namely forward (F), right (R), left (L), backward (B) and stop (S). From the analysis, the subject is less focus when doing the backward movement compared to another aspect of movements. Based on sex difference, the male has a higher attention level than female in every aspect of movement except for the left movement. The age group that has the highest attention level is teenager and the lowest is adult. It can be concluded that the attention level produced by human varies depending on age and sex difference of the individual itself.
Fuzzy Time Series Forecasting Model based on Frequency Density and Similarity Measure Approach
Authors: Ramli Nazirah , Mutalib Siti Musleha Ab , Mohamad Daud
Published: April 2019

This paper proposes an enhanced fuzzy time series (FTS) prediction model that can keep some information under a various level of confidence throughout the forecasting procedure. The forecasting accuracy is developed based on the similarity between the fuzzified historical data and the fuzzy forecast values. No defuzzification process involves in the proposed method. The frequency density method is used to partition the interval, and the area and height type of similarity measure is utilized to get the forecasting accuracy. The proposed model is applied in a numerical example of the unemployment rate in Malaysia. The results show that on average 96.9% of the forecast values are similar to the historical data. The forecasting error based on the distance of the similarity measure is 0.031. The forecasting accuracy can be obtained directly from the forecast values of trapezoidal fuzzy numbers form without experiencing the defuzzification procedure.
Isolation and Characterization of Bacteria from Earthwormsâ€™ Intestines
Authors: Shaarani Shalyda Md , Jia Yap Shu , Arshad Zatul Iffah Mohd , Man Rohaida Che , Mudalip Siti Kholijah Abdul , Sulaiman Siti Zubaidah
Published: April 2019

Vermicomposting; breaking down of organic material by earthworms that feed on wastes and converts them to soil-like mass and liquid, is an alternative to reduce waste into the environment. Nitrogen fixing and Phosphorus solubilizing bacteria in the earthwormsâ€™ intestines are important in promoting plant growth by increasing the Nitrogen (N) and Phosphorus (P) uptake when used as biofertilizers. The objectives of this study are to isolate, identify and characterize N-fixing and P-solubilizing bacteria from the earthwormsâ€™ intestines. The preparation of vermibeds included the introduction of leachate taken from Sungai Ikan Landfill, Kuala Terengganu. Standard serial dilution procedure was performed to isolate the microorganisms. Next, identification and characterization of bacteria were conducted via gram staining and bacteria morphological characteristic studies. Qualitative screening of N-fixing bacteria was performed by Hach Method 8039 while screening of P-solubilizing bacteria used Pikovskayaâ€™s Agar containing insoluble tri-calcium phosphate (TCP). Six isolates, (A1, A2, B1, B2, C1 and D1) were successfully isolated. However, only single colony of A1, A2, B1 and B2 were obtained. All were gram negative and bacilli except for A1. A2 showed the highest nitrogen fixing and phosphate solubilizing activity though with the nitrate content (148.6 mg/L) and high phosphate solubilization efficiency (10.6).