bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detecting SIM Box Fraud by Using Support Vector Machine and Artificial Neural Network
Authors: Sallehuddin Roselina , Ibrahim Subariah , Mohd Zain Azlan , Hussein Elmi Abdikarim 
Published: September 2015

Fraud in communication has been increasing dramatically due to the new modern technologies and the global superhighways of communication, resulting in loss of revenues and quality of service in telecommunication providers especially in Africa and Asia. One of the dominant types of fraud is SIM box bypass fraud whereby SIM cards are used to channel national and multinational calls away from mobile operators and deliver as local calls. Therefore it is important to find techniques that can detect this type of fraud efficiently. In this paper, two classification techniques, Artificial Neural Network (ANN) and Support Vector Machine (SVM) were developed to detect this type of fraud. The classification uses nine selected features of data extracted from Customer Database Record. The performance of ANN is compared with SVM to find which model gives the best performance. From the experiments, it is found that SVM model gives higher accuracy compared to ANN by giving the classification accuracy of 99.06% compared with ANN model, 98.71% accuracy. Besides, better accuracy performance, SVM also requires less computational time compared to ANN since it takes lesser amount of time in model building and training.
Finite Element Modelling Of Compartment Fire Using ABAQUS
Authors: A. A. K. Mariyana , Abdul Awal A. S. M. , Md. Tahir Mahmood 
Published: September 2015

This paper presents finite element modelling (FEM) of a reinforced concrete (RC) frame subjected to elevated temperature. The work presented is part of the UK-India Education and Research Initiative (UKIERI) project. In this project, an experimental test of sub-assemblage frame with elevated temperature has been performed at Indian Institute of Technology (IIT) Roorkee, India. The finite element model using ABAQUS software has been used to validate the increased in temperature distribution on reinforced concrete frame exposed to fire. The idea of this study is to design a compartment fire, and determination of emissivity value at different height. And composition of hot gases was calculated. Gas temperatures used was based on the average temperature-curve obtained in the fire test. The validity of the finite element model was established by comparing the predicted values from the FEM with test data direct from fire test results. The results obtained indicate that suggested FEM analysis procedure is capable of modelling temperature in compartment fires.Â Â
The Status and Characteristics of University-Industry Collaboration in a Research University
Authors: Abu Mansor Nur Naha , Abdul Rahman Azlan , Khademi Tayebeh , Shafaghat Arezou 
Published: September 2015

The increasing reliance on knowledge in industry and services is generating strong incentives to develop more efficient ways to transfer the discoveries made in academia to business.Â This paper mainly focuses to identify the status and characteristics of university-industry (UI) collaborations at a research university. Moreover a quantitative research method was adopted in this study. The sample was selected from Universiti Teknologi Malaysia (UTM). A total of 42 UTM centers participated in this survey. The findings demonstrate the type of existing UI collaborations and mobility at UTM. Furthermore, the result indicated the characteristics of university partners.
CFD Simulation of Water Gravitation Vortex Pool Flow for Mini Hydropower Plants
Authors: Shabara H. M. , Yaakob O. B. , M. Ahmed Yasser , Elbatran A. H. 
Published: September 2015

Mini hydropower plants can be expected to have a good potential to provide electricity to remote communities. An important part of this economic and clean energy system is the conversion of the low-head potential energy into kinetic energy to drive the power turbines. One way of converting the low-head potential energy is using a gravitation vortex pool. This paper describes work to optimize the vortex pool to improve energy conversion and hence generate electricity from low heads of between 0.7 m to 3 m. The commercial Computational Fluid Dynamics (CFD) code ANSYS Fluent was used in this study to investigate the optimum configuration of the vortex pool system. The free surface flow of this system was mathematically described. A parametric study was carried out using the software to determine the main parameters affecting the efficiency of the energy conversion. This parametric study utilized Fluent, which focused on the effect of changing water depth and outlet diameter on inlet/outlet speed; which is novel approach. The results from this study could help in the investigation of the optimum configuration of the vortex pool system.
Numerical Prediction Performance of Kraft Lignin Extraction Using Boundary Breakage Model
Authors: Ooi Zing-Yi , Othman Norasikin , Nyuk Yan Chan 
Published: September 2015

This study predicts the performance of kraft lignin extraction using emulsion liquid membrane (ELM) from pulping wastewater using boundary breakage model. The model was developed based on the previous study with some modifications and assumptions. Therefore, in developing kraft lignin extraction model, it will consider emulsion globule approach and the emulsion swelling and breakage during the ELMs process. It was found to be numerically stable and reliable in predicting the behavior of kraft lignin extraction using ELM for long duration of time. MATLAB software was used to predict the performance of ELM on extracting kraft lignin from pulping wastewater based on the model developed. At optimum condition, the simulation prediction result was found to have a small deviation with the experimental data on extraction efficiency.The model was computed with some parameter effects including initial feed concentrations; treat ratio and agitation speed, which demonstrated that the prediction results were in agreement with the theoretical study of ELM. The data instills confidence in the model as a useful prediction model on kraft lignin removal by ELM process in pulping industry.
SHADOWGRAPHY OF SHOCK WAVE INDUCED BY DOUBLE PULSE TECHNIQUE
Authors: Nugroho Waskito , Khamsan N. E. , Abdullah M. , Ganesan K. 
Published: September 2015

High-speed videography based on double pulse of Nd:YAG laser to capture dynamic expansion of shock wave is reported. A Q-switched Nd:YAG laser was employed as an input signal and disturbance source. Nitrodye laser was utilized as a flash. The shock wave generation was recorded via CCD video camera. Synchronization is organized associated with a digital delay generator. Nd:YAG laser was focused to generate an optical breakdown in distilled water. Double pulses were generated within the interval of one second. The first pulse of Nd:YAG laser was used to trigger the dye laser and the second pulse to generate shock wave. Manipulation of delay times allow to freeze the dynamic expansion of shock wave. The double pulse technique is appropriated for laser system with the absence of external trigger unit. Lack of electronic failure is the advantage offer by the double pulse technique.
COMPARISON OF DEPTH CONTROL FORM SURFACE AND BOTTOM SET POINT OF AN UNMANNED UNDERWATER REMOTELY OPERATED VEHICLE USING PID CONTROLLER
Authors: Mohd Aras Mohd Shahrieel , Wee Teck Lim , Abdul Azis Fadilah , Mohd Nor Arfah Syahida , Hasim Norhaslinda 
Published: September 2015

This paper investigates the depth control of an Unmanned Underwater Remotely Operated Vehicle (ROV) based on ballast tank system using conventional PID controller. The PID Controller is applied to control the depth of the ROV from two different reference points, from the surface and from the seafloor. The concept of ballast tank system selected is piston tank type. Two different sensors are selected, which is pressure sensor for measurement from the surface, and sonar sensor for measurement from the bottom. Control method from both references point are investigated and compared to find out which feedback reference points are more appropriate in different conditions. The implementation phase will be verified through MATLAB Simulink platform. The verified algorithms will then be tested on the actual prototype ROV. And also the prospect of automated the vertical movement of a ROV.
POTENTIAL OF OIL PALM FROND LIQUID EXTRACT AND FIBER AS FEEDSTOCK FOR BIO-BUTANOL PRODUCTION
Authors: Aliyu Abubakar Sadiq , Abdul Aziz Azhar , Yahya Adibah , Abdul Lattiff Zulkanain 
Published: September 2015

Oil palm frond is the most abundant yet untapped biomass in Malaysia. The objectives of the present work are to study the influence of the age of oil palms on productive sugar yield from oil palm frond extracts and to highlight the potential OPF liquid extract and fibers as feedstock for biobutanol production. Oil palm tree age between 5-10, 10-15 and 15-25 years were sampled for the study. The analysis was conducted using DNS method. The findings indicated that OPF petiole with the age limit of 15- 25years gives higher glucose concentration of 40.50g/L as compared with 17.85g/L of 5-10 years. Furthermore, the percentage carbon content of 41.04% and 37.45% obtained from the elemental analysis conducted using various micro elemental analyzers, indicated the suitability of OPF as a promising feedstock for biobutanol production.
PRELIMINARY STUDY OF VEHICULAR TRAFﬁC EFFECT ON RADIO SIGNAL FOR RADIO
Authors: Sabri Nor Hazmin , Umar Roslan , Wan Mokhtar Wan Zul Adli , Abidin Zamri Zainal , Ibrahim Zainol Abidin , Azid Azman , Juahir Hafizan , Toriman Mohd Ekhwan , Kamarudin Mohd Khairul Amri 
Published: September 2015

Radio signals detected from the ground are very weak since it travels far from the universe. Radio wave carries photons with low energies compared to other electromagnetic spectra such as visible light, ultraviolet, X-rays, and the most energetic electromagnetic wave is gamma-rays. The microwave region is the shortest wavelength of radio waves. Hence, microwave photons have greater energy. Radio astronomy studies are restricted due to radio frequency interference (RFI) that produces by human daily activities. If this disturbance is not shrinkage, it poses critical problems in radio observation. There are many factors of man-made RFI, such as, the availability of mobile telecommunications, radio transmission, TV broadcasting, satellite communication, vehicular traffic area, power transmission line and many more. In this paper, we present a preliminary study of the radio sources (electronic system in the car) from the vehicular traffic area (highway) on radio astronomy observation. This study is important to assess how the vehicles affect the radio signal in radio astronomical sources of low frequency such as hydrogen line and deuterium (which wavelength more than 1mm). These research findings would benefit radio astronomy research, especially to profile the RFI pattern in Malaysia.
ASSESSMENT OF BUILDING MAINTENANCE MANAGEMENT PRACTICE AND OCCUPANT SATISFACTION OF SCHOOL BUILDINGS IN PERAK, MALAYSIA
Authors: Yong C. Y. , Sulieman M. Zailan 
Published: September 2015

A properly implementation of maintenance management is able to extend the building life spans and the unnecessary failure of the building element can be avoided. To develop an adequate environment that encourage learning and teaching, maintenance have to be undertaken wisely in the school buildings. However, the awareness of the importance of the school maintenance management is still very low in Malaysia. Thus, the main purpose of this study is to determine the current maintenance practice provided by District Education Office with the satisfaction level of user regarding to the maintenance management practice in school buildings. All the data will be collected through interview, visual inspection and questionnaires. In this study, the conclusion shown that most of the schools are still not yet up to the satisfaction level in terms of the maintenance practice.
INTERACTIVE NON-PHOTOREALISTIC RENDERING
Authors: Al-Rousan Riyad , Sunar Mohd Shahrizal , Kolivand Hoshang , Alhajhamad Hasan 
Published: September 2015

Due to increasing demands of artistic style with Interactive Rate, we propose this review paper as a starting point for any person interested in researching of interactive non-photorealistic rendering. As a simple yet effective means of visual communication, interactive non-photorealistic rendering generates images that are closer to human-drawn than are created by traditional computer graphics techniques with more expressing meaningful visual information. This paper presents taxonomy of interactive non-photorealistic rendering techniques which developed over the past two decades, structured according to the design characteristics and behavior of each technique. Also, it covers the most important algorithms in interactive stylized shade and line drawing, and separately discussing their advantages and disadvantages. The review then concludes with a discussion of the main issues and technical challenges for Interactive Non-Photorealistic Rendering techniques. In addition, this paper discusses the effect of modified phong shading model in order to create toon shading appearance.
MATERIALS EVALUATION FOR GEOTHERMAL APPLICATIONS
Authors: Bäßler Ralph , Keserovi Amela , Sobetzki Joana , Sarmiento Klapper Helmuth 
Published: September 2015

In order to provide basic information on corrosion resistance to the designers and users of geothermal plants different metallic materials including duplex and austenitic stainless steels as well as a nickel alloy have been evaluated in artificial geothermal fluids simulating the conditions in some locations with geothermal potential in Germany as well as two sites in Indonesia. By electrochemical and long-term exposure tests at 100 °C and 150 °C the suitability of low alloyed steel UNS G41300, stainless steels UNS S31603 UNS S31803, UNS S32760, super austenitic steel UNS N08031 and nickel based alloy UNS N06059 was investigated in these geothermal fluids, using critical potentials and corrosion rates. In high-saline environments the crevice corrosion turned out to be the determining mechanism. The nickel based alloy shows excellent corrosion resistance against pitting corrosion. Excluding its high cost, it is very good to be used in the construction of geothermal facilities having highly saline brines. Stainless and duplex steels exhibit a limited corrosion resistance concerning pitting and crevice corrosion. Therefore they are not suitable for highly saline brines. The super austenite UNS N08031 showed a temperature depending behavior. In non-saline environments the low-alloyed steel UNS G41300 (beside of the higher alloyed materials) could be employed as a constructional material for the geothermal power plant, as long as a sufficient wall thickness of the material is considered.
SYNTHESIS OF METAL OXIDE-BASED NANOCOMPOSITES AND MULTICOMPONENT COMPOUNDS USING LAYER-BY-LAYER METHOD AND PROSPECTS FOR THEIR APPLICATION
Authors: Korotcenkov G. , Cho B. K. , Gulina L. B. , Tolstoy V. P. 
Published: September 2015

The ability of Layer-by-Layer (LbL) or Successive Ionic Layer Deposition (SILD) technology to synthesize the layers of nanocomposites, “hybrid” structures and multicomponent metal oxides on various substrates is being discussed in this report. It was shown that concentration and pH of the solutions used, the processing time, and the number of the LbL (SILD) cycles were the main parameters of this process. It was made a conclusion that coatings formed by LbL technology can be used in gas sensors and catalysis for the surface functionalization, in membranes and filters for the pore size controlling, in solar cells for the solar energy conversion, in medicine for the formation of bactericidal coatings, and so on.
EFFECT OF SPUTTERING PRESSURE ON THE STRUCTURAL AND OPTICAL PROPERTIES OF ZNO FILMS DEPOSITED ON FLEXIBLE SUBSTRATE
Authors: Mui Li Lam , Manie @ Mani Azmizam , Shain Farah Lyana , Alias Afishah , Salleh Saafie 
Published: September 2015

Zinc Oxide (ZnO) has get attention because of its excellent optical transmittance approximately ~80%. A systematic study has been made of the effect of sputtering pressure on the structural and optical properties of the deposited ZnO films. ZnO thin films were deposited on plastic substrate by RF powered magnetron sputtering using ZnO disk with 99.99% purity. The RF power of 100 W and argon gas flow from 10 - 30 sccm was used to perform the sputtering process. The argon sputtering pressure was varied between 3 mTorr to 11 mTorr and the growth time is constant at 25 minute. The deposited ZnO thin films are characterized structurally and optically. Structural analysis using X-Ray Diffraction (XRD) show that all the films exhibit a (002) preferential orientation and the estimated grain size measured was varied from 24.5 nm to 29.8 nm. Surface Profilometer was used to measure the thickness and RMS of the deposited films where the thickness decrease from 900 nm to 600 nm and the root mean square (RMS) roughness increase from 4.97 nm to 11.45 nm. The optical transparency value that achieved from UV-Vis Spectrometer is over 80% in the visible range and the band gap energy is within 3.27 eV-3.29 eV range.
EXTREME VALUE ANALYSIS FOR MODELING HIGH PM10 LEVEL IN JOHOR BAHRU
Authors: Mohd Amin Nor Azrita , Adam Mohd Bakri , Aris Ahmad Zaharin 
Published: September 2015

Extreme value theory is a very well-known statistical analysis for modeling extreme data in environmental management. The main focus is to compare the generalized extreme value distribution (GEV) and the generalized Pareto distribution (GPD) for modeling extreme data in terms of estimated parameters and return levels. The maximum daily PM10 data for Johor Bahru monitoring station based on a 14 years database (1997-2010) were analyzed. It is found that the parameters estimated are more comparable if the extracted numbers of extreme series for both models are much more similar. The 10-years return value for GEV is while for GPD is . Based on the threshold choice plot, threshold is chosen and the corresponding 10-years return level is . According to the air pollution index in Malaysia, this value is categorized as hazardous.
KAJIAN KEMAMPUAN RUMPAI LAUT ULVA INTESTINALIS SEBAGAI PENAPIS AIR LAUT SEMULA JADI BAGI PENGKULTURAN SECARA INTENSIF ROTIFER BRACHIONUS PLICATILIS
Authors: Abd Rahman Abdull Razak , Che Cob Zaidi , Jamari Zainoddin , Mohamed Abdul Majid , Toda Tatsuki , Hj Ross Othman 
Published: September 2015

The ability of Ulva intestinalis as a biofilter in the intensive culture of rotifer Brachionus plicatilis was evaluated. 20 g wet weight of U. intestinalis was added into a 40 liters beaker containing 10 liters sea water of the cultured rotifer with quality index 0.36 ± 0.28 mg/L of NH3–N, 0.069 ± 0.025 mg/L of NO2––N, 0.90 ± 0.77 mg/L of NO3––N and 0.993 ± 0.0058 mg/L of PO43– and the alkalinity reading 114 ± 0.1 mg/L, pH 7.23 ± 0.08, temperature 26.3 ± 0.1OC and salinity was 30 ± 0.1 psu. The result of the following day of treatment with U. intestinalis, the water quality index changed to 0.001 mg/L of NH3–N, 0.090 ± 0.014 mg/L of NO2––N, 0.70 ± 0.60 mg/L of NO3––N and 0.89 ± 0.03 mg/L of PO43– while the alkalinity was 114 ± 0.1 mg/L, pH 7.45 ± 0.05, temperature 26.0 ± 0.10OC and the salinity was 30.0 ± 0.1 psu. The biofiltration capacity of U. intestinalis was confirmed by significantly reduced concentration of the NH3–N and 10% of PO43– compared to control only 2% over one day treatment. However from day two onwards the readings were conflicting from the first day readings. These findings were probably because U. intestinalis live in intertidal zone and flushing area therefore the use of U. intestinalis as a biofilter by continuous immersion in cultured water is unnatural. Therefore using U. intestinalis as a biofilter should be used not more than 24 hours.
MONITORING OF TRAFFIC USING UNMANNED AERIAL VEHICLE IN MALAYSIA LANDSCAPE PERSPECTIVE
Authors: Abdullah Azizul , Abu Bakar Elmi , Mohamed Pauzi Muhammad Zaim 
Published: September 2015

Collecting information on traffic flows are important for provide high quality road system. At present, fixed camera is widely used for the monitoring system which covers limited area. Therefore, the unmanned aerial vehicle (UAV) such as quadrotor is developed for monitoring traffic flow since the UAV is responsive mobile sensing system. This development of UAV platform is a starting point for developed a highway traffic and management system which is in future can be enhance by connected the system with graphical user interface (GUI) on ground control station that can defined types of vehicles and analyze level of congestion. At present, the system that developed only transmits a real time video to ground control station without any interpretation by software that detects types of vehicles and analyzes traffic condition. Through the surveillance and monitoring of traffic flows that done at Engineering Campus, Universiti Sains Malaysia, the system provides suitable information for authorities to analyse level of congestion happened on the road and provide alternative solution for users in order to avoid the traffic jam.
Clinical and Economic Benefits of Fidaxomicin Compared to Vancomycin for Clostridium difficile Infection
Authors: Gallagher Jason C. , Reilly Joseph P. , Navalkele Bhagyashri , Downham Gemma , Haynes Kevin , Trivedi Manish 
Published: September 2015

ABSTRACT

We studied the clinical and economic impact of a protocol encouraging the use of fidaxomicin as a first-line drug for treatment of
Clostridium difficile
infection (CDI) in patients hospitalized during a 2-year period. This study evaluated patients who received oral vancomycin or fidaxomicin for the treatment of CDI during a 2-year period. All included patients were eligible for administration of fidaxomicin via a protocol that encouraged its use for selected patients. The primary clinical endpoint was 90-day readmission with a diagnosis of CDI. Hospital charges and insurance reimbursements for readmissions were calculated along with the cost of CDI therapy to estimate the financial impact of the choice of therapy. Recurrences were seen in 10/49 (20.4%) fidaxomicin patients and 19/46 (41.3%) vancomycin patients (
P
= 0.027). In a multivariate analysis that included determinations of severity of CDI, serum creatinine increases, and concomitant antibiotic use, only fidaxomicin was significantly associated with decreased recurrence (adjusted odds ratio [aOR], 0.33; 95% confidence interval [CI], 0.12 to 0.93). The total lengths of stay of readmitted patients were 183 days for vancomycin and 87 days for fidaxomicin, with costs of $454,800 and $196,200, respectively. Readmissions for CDI were reimbursed on the basis of the severity of CDI, totaling $151,136 for vancomycin and $107,176 for fidaxomicin. Fidaxomicin drug costs totaled $62,112, and vancomycin drug costs were $6,646. We calculated that the hospital lost an average of $3,286 per fidaxomicin-treated patient and $6,333 per vancomycin-treated patient, thus saving $3,047 per patient with fidaxomicin. Fidaxomicin use for CDI treatment prevented readmission and decreased hospital costs compared to use of oral vancomycin.