Browsing School of Electrical Systems Engineering (Articles) by Issue Date
Now showing items 41-60 of 114
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Physiological signal analysis for cognitive state estimation
(World Scientific Publishing Co., 2012-02)The purpose of this paper is to identify inconsistency in human physiological signals based on cognitive states by measuring and analyzing bio-signals. In this paper, the cognitive states are estimated using physiological ... -
Reactive power tracing in pool-based power system utilising the hybrid genetic algorithm and least squares support vector machine
(The Institution of Engineering and Technology, 2012-02)This study presents a new method for reactive power tracing in a pool-based power system by introducing the hybrid genetic algorithm and least squares support vector machine (GA-LSSVM). The idea is to use GA to obtain the ... -
Building factor of Grain-Oriented Silicon Iron (3% SiFe) with different thickness on 100kVA three phase distribution transformer core
(Trans Tech Publications., 2012-03)The power loss in laminated transformer cores is always greater than the nominal loss of the electrical steel laminations, by a factor known as the building factor. This paper discussed result of an investigation towards ... -
Capacitive micromachined ultrasonic tranducers: Technology and application
(Elsevier B.V., 2012-03)Capacitive micromachined ultrasonic tranducers (cMUTs) have recently emerged as an alternative to conventional piezoelectric transducers. They offer many advantages in terms of bandwidth, fabrication of layer arrays, ... -
A reconfigurable ultra wide band (UWB) compact tree-design antenna system
(The Electromagnetics Academy, 2012-03)A novel compact tree-design antenna (NCTA) with the ability of reconfigurable ultra-wideband (UWB) of 3.1 GHz to 10.6 GHz to five multi-narrowband applications is proposed. This antenna has a novel radiating element design ... -
Solar PV and grid-connected electricity system with multiple modes operation for homes and buildings
(Praise Worthy Prize S.r.l., 2012-04)This paper presents the designed proposal of a solar PV and grid-connected electricity system with multiple modes operation for homes and buildings. It introduces to a more resourceful solar PV system that suits with the ... -
A new switching scheme for Z-source inverter to minimize ripples in the Z-source elements
(Springer Verlag, 2012-04)This paper presents a modification in pulse width modulation (PWM) scheme with unequal shoot-through distribution for the Z-source inverter (ZSI) which can minimize ripples in the current through the Z-source inductors as ... -
An application of artificial bee colony algorithm with least squares support vector machine for real and reactive power tracing in deregulated power system
(Elsevier Ltd., 2012-05)This paper presents a new method for real and reactive power tracing in a deregulated power system by introducing the hybrid artificial bee colony (ABC) algorithm and least squares support vector machine (LS-SVM), namely ... -
Relationship between the solar radiation and surface temperature in Perlis
(Trans Tech Publications, Switzerland., 2012-06)Statistical models for predicting the solar radiation have been developed. In any prediction of the solar radiation, an understanding of its characteristics is of fundamental importance. This study presents an investigation ... -
Evaluation of in-plane flux distribution in 3phase 100kVA transformer core
(Praise Worthy Prize S.r.l., 2012-06)These papers describe the result of measurement and evaluate the behaviours of inplane flux distribution on 100kVA 3phase distribution transformer assembled with the combination of 60°-45° T-joint. Methodology that is used ... -
Effect of lattice constant on band-gap energy and optimization and stabilization of high-temperature In xGa 1 -xN quantum-dot lasers
(Springer US, 2012-07)We analyze the effect of the lattice constant on the band-gap energy of In x Ga1−x N and optimize the structure of the device with a separate-confinement heterostructure. To vary the lattice constants, we change the In ... -
A review on existing and future energy sources for electrical power generation in Malaysia
(Elsevier Ltd., 2012-08)As the electricity demand is affected by population growth, Malaysia towards an industrialized nation is considering the options for future energy sources for its power generation. Besides the conventional four-fuel mix, ... -
Realibility enhancement of a traffic signal light system using a mean-variance approach
(ICIC International, 2012-08)Traffic accidents cause tragic loss of life, property damage and substantial congestion to transportation systems. A large percentage of crashes occur at or near intersections. Therefore, traffic signals are often used to ... -
New approach for evaluation of the performance of spectral amplitude coding-optical code division multiple access system on high-speed data rate
(The Institution of Engineering and Technology, 2012-08-14)In this study, the authors proposed a new approach to evaluate the system performance of spectral amplitude codingoptical code division multiple access (SAC-OCDMA) systems. The system performance is evaluated based on a ... -
Comparison study on chebyshev and composite lowpass filter for harmonic rejection in two ways radio
(Malaysian Technical Universities Network (MTUN), 2012-11-20)The paper is on a comparison study on Chebyshev and Composite lowpass filter designed at 300-400 MHz used for harmonic rejection in two ways radio. The filter is used to attenuate harmonic that generated by power amplifier ... -
Power factor performance on 0.35 mm and 0.50 mm thicknesses of steel sheets for 0.5 Hp induction motor using FEM software
(Science and Engineering Publishing Company, 2012-12)Decrease the thicknesses of steel sheets will increase the power factor of the 0.5 Hp induction motor. This paper presents the effect of thicknesses in power factor for non-oriented electrical steel sheets. The study was ... -
Current total harmonic reduction technique on three-level single phase transformerless photovoltaic inverter using PSpice
(Universiti Malaysia Perlis (UniMAP), 2013)This paper presents simulation of three-level single phase transformerless photovoltaic inverter (TPVI). Proposed technique of the simulation is created in PSpice software. The simulation is constructed by two voltage ... -
A comparative study of confined carrier concentration of laser using quantum well and quantum dot in active layer
(Trans Tech Publications, 2013)This paper presents a comparative analysis of the characteristics of confined carrier concentration in the gain medium as well as the carrier concentration at the threshold. We have studied extensively these phenomena by ... -
Design of UHF harmonic butterworth low pass filter for portable 2 ways-radio
(Engg Journals Publications, 2013)This paper presents the design of a compact Butterworth low pass filter designed operating at frequency range of 300-400MHz with input and output impedance of 50 ohm have been designed, simulated and fabricated. This filter ... -
The influence of human head model wearing metal-frame spectacles to the changes of SAR and antenna gain: Simulation of frontal face exposure
(EMW Publishing, 2013)The relationship between specific absorption rate (SAR) and antenna gain inside the head due to the metal-frame spectacles was investigated. The radio frequency (RF) energy source considered is the smartphone used in the ...