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29,905 Article Results

Acoustical Comparison between /u/ and /u:/ Arabic Vowels for Non-Native Speakers

10.11591/ijeecs.v11.i1.pp1-8
Ali Abd Almisreb , Nooritawati Md Tahir , Ahmad Farid Abidin , Norashidah Md Din
The articulation of Arabic phonemes is essential for the Malay community since Arabic language is mandatory to perform worship. Hence, in this paper, an acoustical analysis of Arabic phonemes for vowels /u/ and /u:/ is discussed based on tokens pronounced by Malay speakers. The experimental results showed that the Malay speakers are inclined to utter these Arabic phonemes similar to the native speakers and it was also found from the analysis that the vowel /u/ and /u: was articulated as high-back vowels. Conversely, the vowel /u/ was located lower than /u:/ as in the vowel-space. Alternatively results also showed that /u/ and /u:/  is higher than the other vowels specifically /a/ and /a:/. In addition, the statistical analysis showed that the formant frequencies of both short and long dummah for formant frequency F1, F2 and F3 have more variation in terms of /u/ as compare to /u:/. In contrast formant frequency F4 and F5 are more diversity in terms of /u:/.
Volume: 11
Issue: 1
Page: 1-8
Publish at: 2018-07-01

Factors of Adoption Intention for Near Field Communication Mobile Payment

10.11591/ijeecs.v11.i1.pp98-104
Sharidzaly Busu , Norisan Abd Karim , Haryani Haron
Near field communication mobile payment (NMP) is simple to use and beneficial to consumers, yet its adoption among consumers in Malaysia is still at the beginning stage and the adoption rate is relatively lower compared to other countries in the world. The aim of this study is to identify factors that affect the adoption intention of NMP among consumers in Malaysia, by using Faculty of Computer and Mathematical Sciences (FSKM), UiTM Shah Alam as the case study for this research. The quantitative data analysis approach is used in this study. There were 150 questionnaires analyzed using the SPSS. This research identified three factors that affect the adoption intention of NMP which are perceived usefulness, perceived cost and compatibility. By understanding the factors affecting the intention to adopt NMP, financial technology companies can focus to provide the solutions according to market interest, needs and readiness.
Volume: 11
Issue: 1
Page: 98-104
Publish at: 2018-07-01

A Novel M-SEPIC DC-DC Converter for BLDC Pumping System with Active PFC using ANFIS Controller

10.11591/ijeecs.v11.i1.pp386-399
Vamshi Krishna Varma Kshatriya , Ram Kumar A
An exigent consumer related concerns confronted due to utilization of massive front-end AC-DC rectifier in a grid-tied BLDC pumping system. Harmonic distortions are acquired, which prompts the disruption of power quality at utility grid system due to AC-DC conversion. Several factors for enhancing power-quality concerns are ameliorate the grid power-factor along with reduction of harmonic distortions, tightened regulation of DC output voltage. In this way, the DC-DC boost converter plays a unique role; operated in Continuous Conduction Mode. Based on summarizing advantages & disadvantages of classical DC-DC converters, a single switch high voltage gain M-SEPIC DC-DC converter is more suggestive for water pumping system due to non-existence of coupled inductors, low switching loss, low di/dt stress, high efficiency, compact structure, low cost, etc. This work proposes the novel M-SEPIC DC-DC converter fed brushless-DC motor drive is controlled by voltage source inverter and powered by single-phase grid system with improved power-quality features. Moreover, Adaptive Neuro-Fuzzy Inference System is recommended for prediction of optimal switching states to amplify the BLDC motor speed and torque-ripple depreciation. The effectiveness of the proposed scheme is validated under constant speed situations by real-time operating conditions which are evaluated by Matlab /Simulink tool; and simulation results are conferred with attractive comparisons.
Volume: 11
Issue: 1
Page: 386-399
Publish at: 2018-07-01

A Novel and Innovative Approach for Image Steganography with Chaos

10.11591/ijeecs.v11.i1.pp263-267
Krishnaveni N , Sudhakar P
Steganography is the art/technique of hiding message data inside a carrier file in such a way that unauthorized or unsolicited personnel is not capable of detecting the presence of data inside the carrier file. The Proposed Method provides improved security and improved high embedding capacity image steganography through the usage of Integer Wavelet Transform (IWT) and Chaotic Logistic map. Least Significant Bit technique is used to replace the bits in the coefficient of detail band. The proposed method offers lossless and unnoticeable change in the image steganography. In this paper we focus on both cryptography and steganography for better confidentiality, security and robustness. We find that the proposed algorithm has a better CMPSNR (Chaotic Logistic mapping) value averaging close to 74 after embedding the secret data, while the existing algorithms have values of around 65.
Volume: 11
Issue: 1
Page: 263-267
Publish at: 2018-07-01

Recognition of Metal Objects inside Wall using Antipodal Vivaldi Antenna

10.11591/ijeecs.v11.i1.pp27-35
Faraz Ahmed Shaikh , Sheroz Khan , Zarimin Zaharudin , AHM Zahirul Alam , Farah Diyana Bt. Abdul Rahman , Khairayu Bt. Badron , Dominique Baillargeat , Mashkuri Bin Yaacob , Zeeshan Shahid
This paper present a recognition technique of metal placed inside and between two walls. A unique scheme of recognition of metallic objects through Ultra Wide Band (UWB) Modified Antipodal Vivaldi Antenna (MAVA) frequency range of (3.1GHz to 10.6 GHz) is presented in this paper.The working mechanism of detection system based on Time Domain Reflectrometry (TDR) using through wall imaging (TWMI). A very small duration pulses generated by Vector Network Analyzer (VNA) which are used for illuminate the wall.The analysis of a system under UWB antenna probe array. The simulation results of MAVA have given an enormous potential of penetration, in order to recognize concealed metal objects with fine precision, proving a smart development in the detection system technology. The improvement of resolution in an image, special filters have been developed and implemented. The design and optimization progression is conceded out via CST simulation software for parametric performance assessment of return loss, radiation pattern and directivity.
Volume: 11
Issue: 1
Page: 27-35
Publish at: 2018-07-01

Web-Based Boarding School Monitoring System

10.11591/ijeecs.v11.i1.pp215-223
Norsuzila Ya’acob , Aziean Mohd Azize , Azita Laily Yusof , Suzi Seroja Sarnin , Nani Fadzlina Naim , Siti Norbaiyah Rohaizad
An alibi is a priceless thing that someone can rely on when in needs. A good data management can and will save someone life in respond to any unwanted situation.A simple, accurate and trustworthy data log for students in boarding school can and will help ease parent-teacher monitoring system. However, the conventional system require student to manually inform and record their log to their parents and teachers. The system is lacks of automation where a number of problem may arise. The problem includes the inaccurate logging time, misplace of outing card and an unorganized log record. Web-Based Boarding School Monitoring System (WEBMOS) Using MySQL Database and RFID Technology were invented to solve this problem. This technology offered a system that can record student log data in an accurate manner. The aim is to build a system that can provide the accurate data to parent and teacher via a single click through their personal device. This system uses RFID module technology to monitor the student’s logs activity in real time manner. The monitoring system involve the utilization of Arduino Mega, Ethernet Shield, Global System for Mobile communication (GSM) and Radio Frequency Identification (RFID) Module. The system performs an automated data log after the student flashed their card to RFID reader, the data is uploaded to database after the card being flashed and the uploaded information can be view at the webpage at anywhere and anytime. Thus, thesystem is capable of collecting and recording aprecise real time data logging for student’s activity.
Volume: 11
Issue: 1
Page: 215-223
Publish at: 2018-07-01

Performance Characteristics of Miniature Photovoltaic Farm Under Dynamic Partial Shading

10.11591/ijeecs.v11.i1.pp400-408
Antonius Rajagukguk , Dedet Candra Riawan , Mochamad Ashari
This paper presents investigation of  performance characteristic on a miniature photovoltaic farm under dynamic partially shaded condition. Effects of applying bypass diodes in each photovoltaics modul and the transient current of the diode is also investigated. The miniature of PV Farm consisting 4 photovoltaic panels, connected in series to form one string. The whole system comprises 5 photovoltaic strings, which are connected in parallel producing 30 volt and 60 watt peak power fromminiature PV farm.  Shading of 10%, 20 % up to 50 % with dynamically changed is applied. Result from both laboratory tests and simulations is investigated and show very similar.
Volume: 11
Issue: 1
Page: 400-408
Publish at: 2018-07-01

M[x]/G/1 Multistage Queue with Stand-by Server During Main Server’s Interruptions

10.11591/ijeecs.v11.i1.pp275-283
Yuvarani Chandrasekaran , Vijayalakshmi C
This paper investigates a multistage batch arrival queue with different server interruptions and a second server replaces the main server during the interruptions. The different server interruptions are assumed to be: multiple vacation, extended vacation, breakdown with delay time and server under two phases of repair. Customers are assumed to arrive in batches according to Poisson process and a single server provides service to the customers. When the main server is inactive due to the interruptions, stand-by server provide service to the arrivals. In addition, customers may renege during server breakdown or during server vacation due to impatience. Transient solution and the corresponding steady state solution is derived using supplementary variable technique.
Volume: 11
Issue: 1
Page: 275-283
Publish at: 2018-07-01

Analyzing and Predicting User Navigation Pattern from Weblogs using Modified Classification Algorithm

10.11591/ijeecs.v11.i1.pp333-340
P.G. OM Prakash , A. Jaya
A Weblogs contains the history of User Navigation Pattern while user accessing the websites. The user navigation pattern can be analyzed based on the previous user navigation that is stored in weblog. The weblog comprises of various entries like IP address, status code and number of bytes transferred, categories and time stamp. The user interest can be classified based on categories and attributes and it is helpful in identifying user behavior. The aim of the research is to identifying the interested user behavior and not interested user behavior based on classification. The process of identifying user interest, it consists of Modified Span Algorithm and Personalization Algorithm based on the classification algorithm user prediction can be analyzed. The research work explores to analyze user prediction behavior based on user personalization that is captured from weblogs. 
Volume: 11
Issue: 1
Page: 333-340
Publish at: 2018-07-01

Feasibility Study of Grid-Connected Solar Photovoltaic (PV) System for Primary School in Johor

10.11591/ijeecs.v11.i1.pp233-240
Siti Amely Jumaat , Adhwa Amsyar Syazwan Ab Majid , Chin Kim Gan , Mohd Noor Abdullah , Nur Hanis Radzi , Rohaiza Hamdan , Suriana Salimin
This project aims to determine the potential of grid connected solar Photovoltaic (PV) implementation and project planning of solar PV System in school.  Generally, the educational institution used huge amount of electricity to operate so their monthly bills is expensive. Therefore, the project planning is necessary to determine the potential of solar PV system implementation. The project planning consists of the current electricity consumed by the school and the amount of 120W Monocrystalline PV module needed by them. The cost of project are determines to identify the initial cost of this project implementation. Lastly, analysis on the profit collected by SK Pintas Raya after 20 years of solar PV system implementation proved the importance of this project.
Volume: 11
Issue: 1
Page: 233-240
Publish at: 2018-07-01

Effect of Deposition Temperature on Self-Catalyzed ZnO Nanorods via Chemical Vapour Deposition Method

10.11591/ijeecs.v11.i1.pp209-214
Shafinaz Sobihana Shariffudin , Puteri Sarah Mohamad Saad , Hashimah Hashim , Mohamad Hafiz Mamat
The morphological, structural, optical and electrical properties of ZnO nanorods are investigated as a function of deposition temperature. The ZnO nanorods were grown on ZnO seed catalyst layer at temperatures between 750oC – 825oC using thermal chemical vapour deposition method.  Sample deposited at 825oC showed the highest crystalline orientation. The FE-SEM micrographs and the intense peak along (002) direction in the XRD spectra of this sample implied that the nanorods possess c-axis orientation. PL spectra showed two common ZnO peaks which centered at 380 nm and 540 nm. Two-point probe I-V measurement revealed ohmic behaviour with the gold metal contact, whereby the current increase with the deposition temperature.
Volume: 11
Issue: 1
Page: 209-214
Publish at: 2018-07-01

Lightning Effect on Scaled Protected and un-Protected Building Structures and the Air Terminal Bypasses

10.11591/ijeecs.v11.i1.pp182-186
Irshad Ullah , MNR Baharom , H. Ahmad , H.M. Luqman , Zainab Zainal
Lightning strikes affect the building structures by producing high electric field on the surface and around the building structure. Lightning air terminal is a traditional enemy of the thunder storm as it captures the lightning flashes. Effect of lightning flash on the building structure when the lightning air terminal was not installed and when it was installed on different building structure was studied in this paper.  Similarly most of the time Lightning Air Terminal (LAT) bypasses take palce on different building structures and thus a lot of building structures get damage. The phenomenon of bypasses was also studied in this paper. When thunder storm strikes a building the electric field effect is propagated throughout the building surface and it damages the entire building. When the air terminal is places on the corners/edges it captures the lightning flashes on certain points and discharges it into the ground and the building remains safe. This phenomenon was studied in detail in this paper and it was proved that by installing the air terminal the remaining building structure was safe and the electric field intensity was concentrated on the installed air terminal rather than the whole roof top and the rest of the building.
Volume: 11
Issue: 1
Page: 182-186
Publish at: 2018-07-01

Soil Moisture Monitoring Using Field Programmable Gate Array

10.11591/ijeecs.v11.i1.pp169-174
Muhammed Ihsan Husni , Mohammed Kareem Hussein , Mohd Shamian Bin Zainal , Anuar Bin Hamzah , Danial Bin Md Nor , Hazwaj Bin Mhd Poad
This paper presents a solution for remote monitoring and sensing of different agricultural parameters that effect the plant growth and productivity. Hardware descriptive language has been used for the implementation of proposed topology on Field Programmable Gate Arrays. The hardware used for this purpose is an Altera board. The simulated results take into consideration the environmental factors such as the humidity, soil moisture content and the temperature. The proposed system continuously monitors the environmental changes for any updates. The system also controls a water motor that is turned on as the system senses the reduction in moisture content. The system implementation on hard wave level show promising results and have been discussed in detailed.
Volume: 11
Issue: 1
Page: 169-174
Publish at: 2018-07-01

A Proposed Java Static Slicing Approach

10.11591/ijeecs.v11.i1.pp308-317
Basem Alokush , Mohammad Abdallah , Mustafa Alrifaee , Mosa Salah
Program slicing is to abstract a part of source code depending on the point of interest. It used widely in maintenance, debugging and testing. There are many slicing techniques such as static, dynamic, and amorphous. In this paper, we choose to develop a new approach applying static slicing on Java programs. The new approach simplifies the data dependency using arrays. A new Tool called Java Multi-Slicing Tool (JavaMST) has been introduced to apply this approach.JavaMST presents new ways to slice any simple java code segment, it allows you to extract the variables and its direct and indirect dependencies from the code, using backward, forward or both slicing techniques to produce the needed code. This tool is a simple tool designed to deal with simple java code segments. JavaMST can be run under any operating system and does not require a specialized platforms or plug-ins. Therefore, it is useful to be used for educational purposes.
Volume: 11
Issue: 1
Page: 308-317
Publish at: 2018-07-01

Multi objective Adaptive Tumbling Bacterial Foraging in VAR Solutions for Sustainable Power System Operation

10.11591/ijeecs.v11.i1.pp129-136
E. E. Hassan , T. K. A. Rahman , Z. Zakaria , N. Bahaman , M. H. Jifri
The application of the developed optimization technique Multi Objective Adaptive Tumbling Bacterial Foraging (MOATBFO) was introduced to solve the multi objective Reactive Power Planning (RPP) problems. The objective of conventional RPP problems is to minimize the total power losses in a system. However, in this study, the aspect of security was also taken into consideration in terms of voltage stability condition in solving RPP problems. Hence, the RPP problem is now termed as security constrained RPP (SCRPP) and generalized into a multi objective function via weighted sum method that labeled as MOSCRPP. The best minimum voltage solution for the network is aimed in ensuring the sustainable power system operation.  In order to verify the performance of the proposed technique were used for MOSCRPP in the IEEE 57 bus system thus the comprehensive analyses were also conducted with other multi objective Meta heuristic Evolutionary Programming (Meta-EP). From the results it shows that the multi objective ATBFO optimization is able to give better overall improvement in the objective functions for SCRPP problems.
Volume: 11
Issue: 1
Page: 129-136
Publish at: 2018-07-01
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