bluuebunny/crossref_metadata_2025 huggingface dataset:
Asymmetric Cascaded Inverter for Photovoltaic Applications Based on Carrier Redistribution Modulation Strategies
Authors: Rao S. Nagaraja , Biradar Ambresh G. , S Sachin
Published: April 2019

Asymmetric Cascaded Multilevel inverter (ACMLI) for photovoltaic (PV) generating system is presented in this paper. The proposed asymmetrical arrangements of seven-level cascaded inverters have been compared with advanced modulation strategies, in order to find an optimum arrangement with lower harmonic distortion and optimized output voltage quality and which makes use of minimum number of switches to get more levels. It also reduces the complexity, number of sources, cost and losses. Modulating control techniques can be modified in two ways, namely Modified Carrier (MC) and Modified Reference (MR). This paper proposes modifies space vector based pulse width modulation (PWM) using various U-type Carrier Redistribution Methods (CRM) which utilize the control freedom degree (CFD) of vertical offsets among carriers and also compared with existing sinusoidal PWM technique for single-phase seven level ACMLI using MATLAB/Simulink.
A Novel Ternary Content Addressable Memory Cell
Authors: Datti VenkataRamana , Sridevi Dr.P.V.
Published: April 2019

Ternary content addressable memories (TCAM) are used for parallel searching. The parallel searching, results high speed but consumes more power. For higher search speed applications, NOR type matchline TCAMs are useful. The NOR type matchline TCAM needs high power; therefore, the power reduction is the major objective of many reported designs. Here, a novel TCAM cell is proposed. The proposed Ternary CAM cell power consumption is 32% lesser than the NOR type matchline TCAM cell. Simulations are performed using cadence 45-nm technology.
MPPT Design for Photo Voltaic Energy System Using Backstepping Control with a Neural Compensator
Authors: Sriharibabu A. , Rao G. Srinivasa
Published: April 2019

It is very important to have maximum power point trackers for photo voltaic systems to improve their efficiency. This paper deals with the converter based maximum power point tracking by robust backstepping controller along with the neural network. The neural network provides the output reference PV voltage to the backstepping controller. Back propagation neural network is used for a standalone photovoltaic system under robust environmental conditions. Unlike Conventional   solar-array   mathematical   model, neural network does not require any physical data for modeling since it has the superior potential to derive non-linear models without requiring the physical data of the models. In  this  paper  the maximum power point of photovoltaic module is predicted with the simulation trained back-propagation  neural network using a  random  set  of  data  collected  from  a  real  photovoltaic  array. The neural network based PV system with backstepping controller is modeled in MATLAB/Simulink. At different atmospheric conditions the developed model is simulated. The simulation results of PV system depict that with the proposed converter based controller, the maximum power is tracked accurately and successfully.
Enhancement of Power System Transient Stability By Fractional Order Controlled STATCOM Tuned By PSO
Authors: Srinivas R.S. , Rao P.V.Ramana
Published: April 2019

This paper discusses the application of Fractional order PI controlled Static synchronous compensator for improvement rotor angle stability of inter connected power system. FACTS Controllers plays important role in enhancing the power system stability.Besides improving the stability margin of the power system it also aids the damping of inter area power oscillations. In the present work STATCOM is connected in multimachine power system .The dynamic response of the STATCOM is controlled by using fractional order controllers.The controller gains of the fractional controller are tuned by using PSO algorithm.It gives acceptable solutions to continuous non-linear systems with less computational effort. The performance of the proposed controller has been compared with integer order PI controllers at different locations of fault. In this paper a 3 machine 9 bus WSSC test power system is considered and simulated in MATLAB/SIMULINK.
A Study on the Effect of Intelligent Speed Adaptation (ISA) by Using Human Speech and the Acceptance
Authors: Khushairy Makhtar Ahmad , Khameini Ahmed , . .
Published: April 2019

Intelligent Speed Adaptation (ISA) is an in-vehicle system that support drivers compliance with the speed limit. ISA is in fact a collective term for various different systems. Today, speeding was listed as the major cause of road accidents and traffic fatalities worldwide. By having a reliable and acceptable system that could alert the drivers about the speed limit in any particular areas, it will help in reducing the number of road accidents worldwide. This study was conducted to develop a system of Intelligent Speed Adaptation (ISA) by using GPS that would alert the bus drivers in UiTM Shah Alam about speed limits in any particular areas and it must be reliable and acceptable. This research is to determine the factors of acceptance from the drivers towards the ISA system. The system developed was an advisory system. Hence, the way this system give warning about the speed limit to the driver is an important criterion to be taken care of. The output parameter of for this study is the driver’s acceptance towards this ISA system and they must be happy to have this system inside their vehicles.
Advanced Motorcycle Riding Simulation: a Case Study of Sleep Deprivation Effects on Motorcyclist Muscle Fatigue
Authors: Rashid Helmi , Salwa Ahmad Anis , Rahman Omar Abdul , Muhammad Syahmi Wan Fauzi Wan , Halim Abdullah Abdul , Hanif Ahmad Hamidi Shahfuan
Published: April 2019

In enabling scientific studies on motorcycling, a full-scale ergonomic and adjustable motorcycle simulator, Postura MotergoTM was developed at the METAL laboratory, Faculty of Mechanical Engineering, Universiti Teknologi MARA, Malaysia. A case study was conducted using the simulator to simulate prolonged motorcycle riding simulation along with a wireless surface electromyography (sEMG) device to monitor the respondent’s muscle activities. The aim was to investigate the effects of sleep deprivation amongst motorcyclist during prolonged motorcycle riding. It involved five (5) male respondents aged 23 years with a normal BMI and several years of motorcycling experience with one (1) respondent amongst them was sleep-deprived. They were required to ride the simulator for a maximum period of 2-hours non-stop. Seven (7) bilateral muscle groups were monitored throughout the simulations. It concluded that the muscles start to fatigue at a much earlier time significantly compared to other respondents that was mainly caused by sleep deprivation.
Assistive Robot Simulator for Multi-Objective Evolutionary Algorithm Application
Authors: Mohamed Z. , A Ayub M. , H.M Ramli M. , S.B Shaari M. , Khusairi S.
Published: April 2019

This paper presents a new assistive robot simulator for multi-objective optimization application. The main function of the simulator is to simulate the trajectory of the robot arm when it moves from initial to a goal position in optimized manner. A multi-objective evolutionary algorithm (MOEA) is utilized to generate the robot arm motion optimizing three different objective function; optimum time, distance, and high stability. The generated neuron will be selected from the Pareto optimal based on the required objectives function. The robot will intelligently choose the best neuron for a specific task. For example, to move a glass of water required higher stability compare to move an empty mineral water bottle. The simulator will be connected to the real robot to test the performance in real environment. The kinematics, mechatronics and the real robot specification are utilized in the simulator. The performance of the simulator is presented in this paper.
The Influence of the Driving Speed and Vertical Acceleration of the Mobile Machine on the Change of Soil Packing
Authors: Artiomov Mykola , Klets Dmytro , Boldovskyi Volodymyr , Makovetsky Andrii , Kostyk Kateryna
Published: April 2019

The article deals with the processes of changing the vertical forces acting on the propulsion of mobile machines, causing soil compaction when changing the driving speed and vertical accelerations of a mobile machine moving on a deformable soil. The influence of parameters and characteristics of the running gear system of the wheeled tractor, as well as the traction load on the value of vertical accelerations when moving along the soil, is determined. The dependence of the influence of vertical accelerations on the dynamic loads on the axle of the tractor front and rear axles is determined. The dependence of the soil density variation caused by the action of dynamic loads from the propulsion of the tractor front and rear axles has been determined.
The Principles of the Choice of Management Decisions Based on Fuzzy Logic for Cargo Delivery of Grain to the Seaport
Authors: Shramenko Natalya , Muzylyov Dmitriy , Karnaukh Mykola
Published: April 2019

In the article, the approach on the development of management decisions for correct selection of trucks is presented, in the conditions of uncertainty and the stochastic nature of demand for transportation of a grain on the section of a supply chain named "a grain elevator - the sea terminal". The main problems arising at delivery of grain cargoes in a supply chain with the participation of automobile and sea transports were described for justification of relevance of the research. A mathematical definition of the researching tasks was made for the search for the rational management decision at forming a rational structure of the park of the trucks transporting the agricultural products to the sea terminal. Numerous management decisions based on the principles of fuzzy logic have been developed. The values of the input factors are proved in the form of a set of linguistic variables for making a correct management decision. Cargo capacity of the ship coming to the port and amounts of grain which is in a reserve directly on the sea terminal are consider to be definite quantitative characteristics of each set of a term-number.
Study on the Coal-Water Fuel Pipeline Transportation Taking Into Account the Granulometric Composition Parameters
Authors: Chernetskaya-Beletskaya N , Rogovyi A , Shvornikova A , Baranov I , Miroshnikova M , Bragin N
Published: April 2019

The highly loaded coal-water fuel pipe flow was verified. The move of the coal-water fuel with the 60% of coal loading practically has not been studied, especially for the coal originated from Ukraine. Through experimental research it was discovered that the water-coal fuel of such concentrations has a Bingham rheological characteristic. The verification was carried out by comparing the results of numerical calculations and experimental research. As a result of the numerical calculations of the flow, near the axis of the tube, a zone of approximately the same velocity is obtained, which qualitatively coincides with the results of experimental studies and with the results of the analytical description of the Bingham flow. As a result of the calculation the pressure drop value was defined, costs and velocity distribution over the cross section of the pipeline in the straight line and in curve. The velocity distribution profiles of the water-coal fuel flow are built. To compare the results of the calculation and to validate the rheological model choice velocity calculations were performed using the proposed model of Bingham and Newtonian fluids at the same effective viscosity values.Â Â
The Influence of Inorganic Fillers on the Protective Properties of Epoxy Polymer Composite Materials
Authors: Danchenko Yuliya , Andronov Vladimir , Obizhenko Tatyana , Kosse Anatoliy , Khmyrov Igor
Published: April 2019

The influence of regularities of the chemical-mineralogical nature, the dispersity, and the surface properties of inorganic fillers on the protective properties of epoxy polymer composite materials have been investigated. Polymeric compositions based on epoxy resin of ED-20 brand and aliphatic amine curing agent of diethylenetriamine of DETA brand have been chosen as the research materials. The fillers were the air-dry dispersed materials of different nature: oxide, clay and quartz. The resistance of the composites to water and aqueous solutions (absorbency) was investigated by dipping the samples into an aggressive aqueous medium. For the received samples of the filled composites, thermogravimetric (TG) and differential scanning calorimetry (DSC) method were used using the SDT Q600 device manufactured by TA Instruments (USA). It has been found that the thermal stability and the absorbing capacity of the filled composites in water and aqueous acidic and alkaline mediums correlate with each other. It has been shown that to obtain materials with improved protective characteristics, it is necessary to use oxide or clay fillers with the basic (alkaline) surface function.Â Â
Research of Explode Exposure at the Relief Vent System Structures with Soft Transparent Material
Authors: Pozdieiev Serhii , Pidgoretskiy Yuriy , Nekora Olga , Sidnei Stanislav , Tyshchenko Oleksandr
Published: April 2019

A methodology was developed for studying the influence of structural parameters of the relief panels of flexible fencing elements on their behavior in case of explosion. A mathematical model was substantiated on the influence of structural parameters of relief panels with flexible fencing elements on the conditions of their triggering, based on the theory of plates and shells. There was also developed a method for determining the structural parameters for the successful triggering of the relief panels with flexible elements of fencing in case of excessive pressure of explosion, exceeding the maximum allowed parameters.Â
Composite Granulated Adsorbents Based on Chitosan and Agricultural Processing Waste for Sewage Treatment
Authors: A. Bezdeneznych L. , V. Kharlamova O. , M. Shmandiy V.
Published: April 2019

To minimize the impact of industrial enterprises on water objects, a wide variety of adsorbents (based on activated carbon, natural materials, nanomaterials, vegetable waste of agro-industrial complex, etc.) is used. Recently, chitin and chitosan have attracted the attention of scientists due to a number of unique physico-chemical and biological properties (adsorption, antioxidant, radioprotective, immunomodulating, lamina-forming). We have improved the method of obtaining powdered chitosan and established the basic physical and chemical parameters (bulk density, humidity). The method of obtaining chitosan granules and composite materials based on chitosan and modified sunflower husks (MSH) has been further developed by the "drip method". The adsorption properties of powder chitosan, chitosan granules and MSH were studied. It is set that a granular adsorbent has a high adsorbtivity in comparing to the original chitosan. Efficiency of wastewater treatment with the use of chitosan granules and MSH is equally high (up to 98%). The optimum amount of adsorbent for effective cleaning of contaminated water is 1% of its volume. The use of the results of the conducted research allows us to obtain an effective adsorbent for the treatment of industrial waste water.Â
Mathematical Models for Determination of Specific Energy Need for Heating and Cooling of the Administrative Building
Authors: I. Deshko V , Yu. Bilous I
Published: April 2019

According to the building energy balance, most of the resources are spent on maintaining a comfortable indoor microclimate. To estimate the energy resources rational use and to determine building energy efficiency, specific indicators are used per unit area and/or volume.In this paper, a comparative analysis of various approaches to determination of energy need for heating and cooling that have been used or are introduced in Ukraine and the peculiarities of different climatic data application is carried out. The differences in application of considered methods are established. The analysis of various averaging time intervals (monthly, daily average and hourly) for climatic parameters change in dynamic models during the heating period application influence on heating and cooling load change is carried out. Specific energy need has been established according to different methods and a comparison with the current normative values in Ukraine has been made.Â Â
Formation of the Institutional Model of Public Administration of Post-Industrial Transformation of the Ukrainian Industrial Complex
Authors: Dykan Volodymyr , Tokmakova Iryna , Kalicheva Natalia , Korin Myroslava , Kozlova Anastasiia
Published: April 2019

The analysis of the institutional factors that negatively influenced the activities of the industrial complex of Ukraine in the process of formation of the neo-liberal economy model was performed. It was clarified that the accelerated liberalization of economic relations in Ukraine caused the loss of the core function in ensuring the effective functioning of the industrial sector - management. On the basis of the study of the change of key economic development indicators, the consequences of the crisis in industry were found out. The current conditions of the Ukrainian industrial sector development were described by clarifying such trends as globalization, socialization and humanization, intellectualization and business integration. The conceptual provisions of the institutional model of public administration of the development of the Ukrainian industry on the basis of the post-industrial economy have been formed. The goals, objectives, strategic priorities of the industrial sector development were identified and the promising form of business organization for introduction of high-tech production was determined. The main areas for improving the public administration frame with respect to the regulatory, supporting and coordination components and by forming an effective mechanism of public control were clarified.Â Â
Infrastructure Bonds as a Funding Tool for Attracting Financial Resources for Financing Railway Modernization Projects within the Framework of PPP in Ukraine
Authors: A. Yermolenko O , Ðž. Kokovikhina O , Ð† Boiko D , M. Lysonkova N
Published: April 2019

The article concerns the analysis of the funding sources for modernization projects at OJSC Ukrzaliznytsia (UZ). Moreover, it has been proved that the self-financing enterprises of UZ in the process of expanded creation are inefficient. It is noted that infrastructure bonds within the framework of public-private partnership (PPP) may become a new promising form of financing infrastructure projects in Ukraine. The analysis of the international practice made it possible to identify some of the features functioning infrastructure bonds and its specifics for the railway industry. It has been established that advantages of this type of securities cause increased interest to them from the stock market participants, both nonprofessional and portfolio investors, which include insurance companies, investment funds and pension funds. It is proposed to the issuance of infrastructure bonds with the rate of return "average deposits rate of Ukrainian banks plus 3%". Such a rate of return in the conditions of existence of state guarantees would interest to potential investors. The purpose of the article is to reveal the content and features of the use of infrastructure bonds in financing public-private partnership projects in the railway industry and to substantiate the practical recommendations for their application.Â Â
Formation of the Mechanism for Conducting Internal Audit at the Railway Transport Enterprises
Authors: Obydiennova Tetiana , Chobitok Viktoriya , Dudnieva IuliÑ–a
Published: April 2019

The article deals with the issues of conducting internal audit at the railway transport enterprises. The difference between the concepts of â€œinternal auditâ€ and â€œinternal controlâ€ is defined. The main principles and objectives of the internal audit, information base and main tasks are revealed. The authorsâ€™ classification of types of internal audit at the enterprises of railway transport is offered. It has been determined that for conducting internal audit at the enterprises of railway transport, it is necessary to use general scientific and special methods and techniques. The authors gave a comprehensive description and specific recommendations for their application. The goals of the internal audit department (committee) at the enterprises of railway transport are singled out separately. It is determined that during the work the internal audit department receives a lot of information from internal and external sources. The authorsâ€™ mechanism of conducting internal audit at the enterprises of railway transport is prepared.Â Â
Development of the Methodological Proposals for the Use of Innovative Risk-Based Mechanism in Transport System
Authors: Piterska Varvara , Shakhov Anatoliy , . .
Published: April 2019

It can be concluded that the system of analysis and risk management is an effective mechanism for accelerating of customs clearance and improving of the quality of customs control in the functioning of the transport system. The proposed risk management mechanism for performing customs and technological procedures within the transport system reflects a sequence of actions that involves selecting one or more monitoring objects for careful analysis and determination of risk indicators, followed by a decision on the use of forms and methods of customs control, taking into account the probability the occurrence of potential or real loss. The use of the proposed methodology will significantly shorten the time of customs procedures, and therefore, reduce the time of transportation of goods across the border, exclude the downtime of transports through the implementation of simplified controls taking into account the requirements of the World Trade Organization, as well as the integrated use of the Kyoto Convention on the basis of assessing of the loss from the risk situation.
Intellectual Property as one of the Major Tendencies of Innovative Development of Railway Transport
Authors: Tіmanjuk Valeria , Chernenko Yuliya
Published: April 2019

The paper deals with the issues of effective formation and use of intellectual property in the transport system with the example of a public joint-stock company “Ukrainian Railways” (UR). Within the framework of the reorganization of the UR structure it is proposed to create an “Intellectual Property Management Office”, which forces are aimed at attracting the best scientific protectable designs and innovation projects, created both on the basis of their own enterprise and subject universities and organizations; the justification concerning the necessity of preparation of the patent policy is provided, which should correspond to the innovation strategy of the enterprise development; the economic-mathematical model is proposed, which allows to reach the optimum implementation of works that must be performed in accordance with the UR patent policy; the calculations of possible economic effects due to the commercialization of intellectual property objects are presented. It is substantiated that the use of intellectual property by the UR will enhance its image, competitiveness, become one of the tools of investment attraction, and will result in receiving additional profit.
Movement of Fluid Inside the Sphere
Authors: Abenov Ðœ.Ðœ. , Gabbassov Ðœ.B. , Ismagulova F.Y.
Published: April 2019

The paper presents an exact analytical solution of the stationary problem of an incompressible ideal fluid flow inside a sphere under the action of an external potential mass force.
Preparation of Aniline Dimer-COOH Modified Magnetite (Fe3O4) Nanoparticles by Ultrasonic Dispersion Method
Authors: Taka Zakiyyu  Ibrahim , Mustafa Mohd  Kamarulzaki , Asman Saliza , Sekak Khairunnadim Ahmad , Muhammada Jibrin
Published: April 2019

The magnetite (Fe3O4) nanoparticles capped with certain level of aniline dimer-COOH were prepared via assisted ultrasonic dispersion method and characterized by X-ray Diffraction spectra (XRD), Field Emission Scanning Electron Microscope (FESEM), Ultraviolent UV-visible (UV-vis) and Fourier Transformation Infrared spectroscopy (FTIR). The XRD result shows that both the sample of Fe3O4 nanoparticles synthesized without aniline dimer-COOH have similar peaks with the one that were capped with aniline dimer-COOH, this indicated the higher purity crystalline peaks of Fe3O4 nanoparticles was successfully synthesized. The Field Emission Scanning Electron Microscope (FESEM) result shows that, the aniline dimer-COOH modified magnetite nanoparticles are less agglomerated with spherical shape and continues size distribution, and the obtained image from EDS indicates the present of Fe3O4 nanoparticles by showing Fe-O group of element. The magnetic properties of the magnetite nanoparticles prepared by ultrasonic irradiation method was observed by vibrating sample magnetometer (VSM), the hysteresis loop of Fe3O4 nanoparticles observed by VSM has a saturation magnetization at 89.46 emug-1 indicating super paramagnetic behavior of the Fe3O4 nanoparticles.Â Â
Gas Emission of Palm Oil Waste Bricks During Firing Process at Different Heating Rates
Authors: Sarani Noor Amira , Kadir Aeslina Abdul , Othman Hamidah Syd
Published: April 2019

The demand for brick materials is expected to increase rapidly. However, pollutant emission during the firing process becomes a threat to the human and environment. Therefore, this study is focusing on the release of pollutant gasses during firing manufactured bricks. The bricks were incorporated with 5% of palm oil waste (palm kernel shell and empty fruit bunches) and fired at different heating rates: 1°C/min, 3°C/min and 5°C/min. All samples were fired until it reached 1050°C and retained for 2 hours soaking time. The gas emission measured during firing process includes carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NO) and sulfur dioxide (SO2). The results of estimated total emission (ETE) of gasses were compared to control bricks and palm oil waste brick. The result obtained has shown that increased heating rates cause decreased in gas emission, especially for CO2 and CO. Therefore, this study determined that pollutant gasses are least minimal at high heating rates (5°C/min). As a conclusion, several pollutant gasses did not comply with the federal Clean Air Act’s National Ambient Air Quality Standard (NAAQS) set by Environmental Protection Agency.
Ice Bath Therapy on Athletes Recovery Response Using EEG
Authors: H Hakimi, M. , M Salleh, S. , Y Ainul, H.M. , Z Ngali, M. , E Ismail, A. , A Rahman, M.N. , W Mahmud, W.M.A.
Published: April 2019

Sport recovery system is an integral aspect to help athletes adapt faster to training. This is an important process of physical preparation by reducing fatigue where the athletes can ready for the next competition or training. However, most of an athlete doing training without having the fully recovery after the training and can affect their performance. The cold bath water immersion is the one of common technique to recover from the fatigue. In this study, Neurosky mindwave is use to extract the brain wave of an athlete to know the response of an athlete when perform the cold water immersion. The responses of an athlete include meditation which is in alpha wave that state in relax condition and beta wave that is in fatigue condition in sport. The raw brain wave signal that extract using Neurosky mindwave is analysed using Matlab in terms of time domain. After that, Fast Fourier Transform (FFT) will use to analysed in terms of frequency domain. This project used alpha and beta band to collect the data. The analysis have made based on the peak value in frequency domain to know the best time for cold water immersion and best cold bath temperature.
Malaysia Tourism Demand Forecasting Using Box-Jenkins Approach
Authors: Hamzah Diyana Izyan Amir , Nor Maria Elena , Saharan Sabariah , Hamdan Noor Fariza Mohd , Nohamad Nurul Asmaa Izzati
Published: April 2019

Tourism industry in Malaysia is crucial and has contributes a huge part in Malaysia’s economic growth. The capability of forecasting field in tourism industry can assist people who work in tourism-related-business to make a correct judgment and plan future strategy by providing the accurate forecast values of the future tourism demand. Therefore, this research paper was focusing on tourism demand forecasting by applying Box-Jenkins approach on tourists arrival data in Malaysia from 1998 until 2017. This research paper also was aiming to produce the accurate forecast values. In order to achieve that, the error of forecast for each model from Box-Jenkins approach was measured and compared by using Akaike Information Criterion (AIC), Mean Absolute Deviation (MAD), Mean Square Error (MSE) and Mean Absolute Percentage Error (MAPE). Model that produced the lowest error was chosen to forecast Malaysia tourism demand data. Several candidate models have been proposed during analysis but the final model selected was SARIMA (1,1,1)(1,1,4)12. It is hoped that this research will be useful in forecasting field and tourism industry.
A cluster Analysis for Binary Data Using Genetic Algorithms
Authors: Saharan Sabariah , Yu Xian Wong , Baragona Roberto
Published: April 2019

This research was initially driven by the lack of clustering algorithms that focus on binary data. A promising technique to analyze this type of data, namely Genetic Clustering for Unknown K (GCUK) became the main subject in this research. GCUK was applied to cluster four binary data and there is a presence of an imbalanced data in one of the data sets. The results show that GCUK is an efficient and effective clustering algorithm compared to K-means. The other contribution is the capability of GCUK for clustering the unbalanced data. Standard clustering algorithms cannot simply be applied to this type of data sets as it can cause a misclassification results.
Flood Risk Index Assessment: Case Study in Lenggor River Basin, Johor, Malaysia
Authors: Afiqa Adila Zakaria Nurul , Shakir Mohd Saudi Ahmad , Khairul Amri Kamarudin Mohd , Hafiz Md Saad Muhammad
Published: April 2019

The objective of this research is to determine the correlation of selected hydrological variables, to analyzed the significance factors influenced the occurrences of flood, to propose the flood control limit system and establish new flood risk index model in Lenggor River Basin based on secondary data derived from Department of Drainage and Irrigation (DID). Application of Chemometric technique such as Spearman’s Correlation Test, Principle Component Analysis, Statistical Process Control and Flood Risk Index created the most efficient results. Result shows water level has strong factor loading of 0.78 and significant for flood warning alert system application. The Upper Control Limit (UCL) for the water level in study area is 33.23m, while the risk index for the water level set by the constructed formula of flood risk index consisting 0-100. The results show 20.6% classified as High Risk Class with index range from 70 and above. Thus, these findings are able to facilitate state government to come out with a comprehensive plan of action in strengthening the flood risk management at Lenggor River basin, Johor.
A Comparative Study of Destination Selection Attributes among Island Tourists
Authors: Ismail Fathilah , Puad Mat Som Ahmad , Alia Fahada W Ab Rahman N , Mat Alipiah Roseliza
Published: April 2019

The objective of this research is to examine differences in the choice of destination attributes, from the perspective of cross-cultural visitors and local islanders at two world-class islands in Malaysia. Using a close-ended questionnaire and random convenience sampling method, data collection has been carried out at two most visited islands in Terengganu; Redang and Perhentian. A total of 391 respondents (tourists and local hosts) was involved in this study. The outcomes of this research have demonstrated that local hosts and island travelers responded to destination selection attributes differently. The hosts were concerned with the environment and island activities, while tourist groups emphasized on the availability of services and facilities on the islands. This study also highlights that Malay and western tourist have a significant different perception with regard to destination selection attributes. Western tourist is also seeking a chance to be part of the island community and take part in their daily lifestyle. This research provides information on destination selection attributes and highlights the importance of understanding about cultural differences among tourists and local hosts in delivering satisfactory services for the survival of island tourism over the long term.
Recent Advances in Photocatalytic Treatment of Palm Oil Mill Effluent (POME): A Review
Authors: Charles Ashwin , Kui Cheng Chin
Published: April 2019

Palm oil mill effluent (POME) pollution is a serious issue that has gained the attention of an international audience including policy makers, mill owners, NGOs and academicians. With a production rate of 74 million metric tonnes a year, Malaysia is in dire need for new technologies able to address this mounting problem. While previous research has attempted to modify existing microbial driven organic degradation methods to optimize the organic load removal, new studies recognize the futility in this endeavour as mills are unwilling to change the way they operate and adopt these disruptive technologies. Instead current research aims at tertiary polishing technologies of which photocatalysis has emerged as a forerunner. Recent advances indicate photocatalytic treatment of POME is a viable solution to the problem but for it to be cost effective, future studies should focus on visible light driven processes and new reactor configurations to improve the photocatalytic activity of existing systems.
The Influencing Factors of Transfer of Training among the Academic Staff of UiTM
Authors: S. Nik Md Salleh N. , A. A. Wan Mohd Amin W. , Mamat I. , Mat Zin S. , Mamat M. , S. Juso S. , S. Che Kob C.
Published: April 2019

This study examined the relationships between employee readiness (attitude, organisational commitment, abilities and motivation to learn), training design (error management and perceived importance), work environment (supervisor’s role and opportunity to use) and transfer of training among the academic staff of UiTM. This study also aimed to determine if motivation to transfer mediates the relationships between employee readiness, training design, work environment and transfer of training. By using the Structural Equation Model – Partial Least Square (SEM-PLS) for the final analysis, the results found that abilities, error management, supervisor’s role and opportunity to use had significant and positive relationships with transfer of training. The study also confirmed the mediating effects of motivation to transfer between error management, opportunity to use and transfer of training.
Sustainability Tourism Industry Development: A Strategic Stakeholder Approach Analysis
Authors: Assagaf Aminullah , Muhammad Zikri , Salmiay Taty , Renreng Mulhayati , Taufiq Possumah Bayu
Published: April 2019

The tourism industry development sustainability is represented in how the all resources managed in such a manner to fulfill the requirement of economics, social and environmental towards integrated social cultural systems. Stakeholder approach is one way to achieve the sustainability industry development. It is an approach that emphasizing role and involvement of stakeholder in the context of opportunity access in managing the industry of tourism, with nobleness of political culmination, democratic, fair profit sharing for the local communities in tourism activities
Dynamic Mechanical Thermal Analysis of Wood Polymer Composite Endurance to Prolonged Ultra Violet Irradiation Exposure
Authors: Shahrizan M.Z. A. , Zafiah M. Rus Anika , Munirah A. Nur , Zulkhairi J. M. , Afiqah Sufian N. , Saddam  Kamarudin N. , Marsi N. , Aida Ibrahim Siti , Hazwanee M.J. Farhana , F.L. Abdullah M.
Published: April 2019

This study was constructed to examine the viscoelastic properties and the microstructure of wood-plastic composites (WPCs) before and after being subjected to UV irradiation. The pellet of the wood polymer composites consists of polypropylene as the matrix and rice-husk flour as the reinforcing filler. The samples were UV irradiated from 5000 hours to 20,000 hours with the increment of 5000 hours to study the effect of weathering on the viscoelastic properties of the WPCs. The microstructures of the surface of the samples were examined using Optical Microscopy (OM). The mechanical properties of WPCs through dynamic mechanical analysis test were assessed for both polyvinyl chloride (PVC) and polypropylene (PP) samples. The value of storage modulus (E’) decreases when been exposed in the ultra violet irradiation, in both glassy and rubbery states. Moreover, the density of the WPC samples is closed to light weight and result is comparable. As for morphological properties test, the surface of cracked, voids appeared at the surface of the WPC samples of both PVC and PP interface and the density of composite decreased.
Student’s Perception of Building Drawing Techniques about Industrial Internship Program
Authors: Kurniawati Mega , E. Nayono Satoto , Dahar Minghat Asnul , Rizal Fahmi , . . , . .
Published: April 2019

This study originated from the absence of career data from graduates of the Building Engineering Education Study Program at Padang State University. The purpose of this study is to describe and evaluate the implementation of the internship. Data collection techniques using questionnaires with Likert scale and data analysis techniques using descriptive analysis. The population in this study were students of the Building Image Engineering study program. The sampling technique uses total sampling with a sample of 25 respondents. The results of the study with indicators of student perceptions of the implementation of the 80.52% apprenticeship are categorized very well, and the indicator of the benefits of 83.20% apprenticeship is categorized very well.
Design and Development of an Inspection Robot for Oil and Gas Applications
Authors: Hajjaj Sami Salama Hussen , Khalid Ilyas Bin
Published: April 2019

Pipeline or mass transport line are the chief applications which are typically involved in the oil and gas industries. After various background studies, the pipeline involved in such industries comes from a high technology design and material of use. Hence, inspection and maintenance must be done frequently to ensure the pipeline can be used in an excellent working state. The inspection on pipeline must be done before and after its maintenance. However, it is difficult to inspect within the pipe to ensure it is in good condition. Currently, various new types of technology are used for inspection purposes specifically by means of the Non-Destructive Testing, but it highly costly. Thus, this project focuses on the design and development of an inspection robot to perform a pipeline inspection. Some applications that can accommodate to the designing of a robot is that the robot is able to manoeuvre inside the pipeline wirelessly and give a visual interface while proceeding it. Therefore, this project shows the development processes included in the design and development of an inspection robot for the oil and gas applications.
Assessing the Usability of a Prediabetes Self-Care Application: a Multi-Method Approach
Authors: Subramaniam Suthashini , Dhillon Jaspaljeet Singh
Published: April 2019

Increasing demand for digital technology, worldwide, has unlocked new pathways for diabetes prevention. Health behavioural change theories when integrated in the design of novel health applications can foster effective self-health management and prevention. We developed i-PreventDiabetes, a self-care application for prediabetics, that enables lifestyle monitoring, goal setting and activity planning, which is accessible via both web and mobile. In this study, we evaluated the usability barriers and enablers, and assessed the user experience with the system by using a multi-method approach with 20 participants. This approach includes cognitive walkthrough, think-aloud method, question-asking protocol, System Usability Scale (SUS), User Experience Questionnaire (UEQ), and open-ended questions. The results indicate that the users are satisfied with the concept of preventing diabetes by using a self-care application that includes a variety of functionalities that empowers prediabetics to take charge of their own lifestyle in preventing diabetes.
Greenhouse Gas (GHG) Emission Estimation from Cropland Remaining Cropland in AFOLU Sector for Various Districts in Sarawak
Authors: Peng E. K. , Malek M. A. , Bahrum N. Azimah , Tan C. S.
Published: April 2019

Greenhouse gases (GHG) exist in the world and lead to more heat being trapped. The study belongs to part of initiatives to establish GHG emission from Agricultural Forest Land Use (AFOLU) at Sarawak, Malaysia. The study implements Tier 1 methodology of 2006 IPCC (Intergovernmental Panel on Climate Change) Guidelines to estimate carbon dioxide (CO2) emissions from cropland remaining cropland in Sarawak, in which uncertainty analyses are included. The study aids in establishing the quantity as well as trending of CO2 emissions from crops such as fruit trees, cocoa, pepper, rubber and palm oil cultivated in non-urban and non-rural areas of Sarawak from year of 2008 to 2012. Based on this study, it is found that Miri is the highest CO2 emitter from palm oil as compared to other districts with total amount of 681.55 kt C/year. It is also found that CO2 emission from crops cultivated in Limbang (non-urban) is the lowest with total values of 35.84 kt C/year, 16.16 kt C/year, 0.13 kt C/year and 5.08 kt C/year for palm oil, rubber, pepper and fruit trees respectively. Generally, results obtained from this study showed that at most districts in Sarawak, palm oil plantations produce the highest CO2 emission demonstrating increasing trend through-out the study duration, while the rubber plantations ranked second. Estimated emission values of CO2 can be used for planning and mitigation purposes at various level of confidence.
Biodiversity Reporting Among Malaysian Companies: does the Risk Level Matter?
Authors: Husin Norhayati Mat , Remali Azrinawati Mohd , Alrazi Bakhtiar
Published: April 2019

As Malaysia launched its National Key Economic Areas, biodiversity has been identified as one of the entry point projects for one of the sectors that will drive Malaysia towards high-income status i.e. tourism. Biodiversity, however, is facing a crisis, due to the development of business operation that has direct or indirect contribution to biodiversity loss. Despite the growing concern on biodiversity issue, previous studies have put more focus on general sustainability or environmental reporting issues. This paper aims to provide an analysis on the extent of biodiversity information disclosed by the top 100 Malaysian public listed companies and to see whether there is significant difference, in terms of reporting, between companies from different categories of biodiversity risk. The findings show 80 of the Malaysian companies disclose information regarding biodiversity with ‘mission statement’ being the highest reported biodiversity related item. There is also significant difference, in the context of biodiversity reporting, between companies from different categories of biodiversity risk. Further analysis shows companies with higher biodiversity risk (red-zone) provide more reports on biodiversity related information leading to a statistically significant difference from companies with lower biodiversity risk i.e. amber-zone and green-zone.
A New Approach for Privacy-Aware Smart Metering using the Concept of Software Defined Networking
Authors: Al-Haiqi Ahmed , Alkahtani Ammar Ahmed , Nordin Farah Hani , Baharuddin Mohd Zafri
Published: April 2019

The direct and two-way communication between energy suppliers and high-frequency smart meters enables the suppliers to implement dynamic pricing and manage demand response. Fine-grained monitoring of energy consumption also helps consumers improve their energy profile. This granularity, however, may impose a threat on household privacy. Detailed profile of energy usage can be mapped into detailed profile of daily activities. Many proposals attempted to mitigate this problem and introduce privacy-preserving smart metering. The main approach is to process meter data before they are sent to the energy provider, through de-identification, aggregation or encryption. This processing can take place locally on the smart meter itself, or through a trusted third party. Such solutions suffer from increased smart meter complexity or increased infrastructure complexity, which may render them unacceptable. The idea described in this paper aims to avoid those drawbacks by proposing a new architecture to implement privacy-aware metering. The proposed approach employs the concept of software-defined networking (SDN) to manage smart-meter data in a separate control layer inside the home network. Leveraging the concept of SDN puts the control back in the hands of the consumers to manage their own privacy via SDN applications, and relieves the supplier from enduring extra complexities.
Design of High Gain Microstrip Patch Reader Array Antenna with Parasitic Elements for UHF RFID Application
Authors: Norzeli Syamimi Mohd , Ismail Ismarani , Md Din Norashidah , Ali Mohd Tarmizi , Saravani Sobhan , Almisreb Ali Abd
Published: April 2019

Design of a microstrip patch UHF reader parasitic array antenna for RFID (Radio Frequency Identification) applications is proposed, in which the design patches antenna realized by loading two truncated at the corner of the ordinary rectangular patch antenna. The patch was sorted in a 2 x 2 array configuration, meanwhile the feed network was constructed by coaxial feed concept. The parasitic elements are added on the same layer of the substrate and at the right and left side of the every patch. The physical parameters of the novel structure are simulated and optimized by using commercial computer simulation technology (CST) simulation packages. The simulation results show the high gain antenna is achieved which is 11.15 dBi. The measured results of the return losses and the radiation pattern achieved a good agreement with the simulated results.
Infrared and Microwave Radiometry as A Means of Thermodynamic State Remote Control of Atmospheric Boundary Layer
Authors: Velichko A.P. , Osrovsky E.V. , Mirsaitov S.F. , Snedkov A.B.
Published: April 2019

In the present research an attempt was made to extract information obtained on the basis of IR radiometric measurements in order to determine content of moisture and aerosol in the atmosphere, as well as height of the cloud base. Particular attention was paid to the method of measurement and processing and presentation of the results.
Assembling the Reclaimer for Utilization of the Air with Ultraviolet
Authors: Mikayeva S.A.
Published: April 2019

The article presents a re-circulator designed for disinfecting air with ultraviolet light. Disinfection of air in the re-circulator is due to the impact on microorganisms of bactericidal UV radiation with a wavelength of 254 nm. Inactivation of microorganisms occurs due to the message sent to them of a sufficient dose of UV irradiation. The technical characteristics of AEROLIT - 550 re-circulators are described. The assembly and the re-circulator device are described. The re-circulator is designed for disinfecting air with UV radiation in the premises of the food industry, catering and trade, as well as in production workshops, warehouses, storage of finished products and raw materials, public places, where the characteristics of the re-circulator do not contradict the requirements for the above places, in the presence of people.