Browsing Journal Articles by Title
Now showing items 2061-2080 of 3156
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On stereo processing procedure applied towards blind navigation aid - SVETA
(Institute of Electrical and Electronics Engineering (IEEE), 2005)This paper presents a portable traveling support system using stereo image processing for the visually impaired people's navigation. This system named as SVETA consists of a helmet molded with stereo cameras in the front, ... -
On the application of positron spectroscopy to heteronanostrutures
(Universiti Malaysia Perlis, 2013)The band structure calculations have been performed for the defect-free GaAS-AIAs superlattice and the electron-positron momentum density distributions have been computed. The comparison of data of calculations with the ... -
On the effectiveness of time and date-based sun positioning solar collector in tropical climate: A case study in Northern Peninsular Malaysia
(Elsevier Ltd., 2013)This paper provides detailed information on the developed hardware and software for sun tracking mechanism and shows the effectiveness of utilizing time and date-based sun positioning solar collector system in tropical ... -
On the electronic nature of silicon and germanium based oxynitrides and their related mechanical, optical and vibrational properties as obtained from DFT and DFPT
(Elsevier B.V., 2012-02)Electronic structure, bonding and optical properties of the orthorhombic oxynitrides Si2N2O and Ge2N2O are studied using the density function theory as implemented in pseudo-potential plane wave and fullpotential (linearized) ... -
On the investigation of quantum evolution of a single photon wavepacket: A simulation approach
(IDOSI Publications, 2013)Investigation into photon wavepacket is fundamental to the deep understanding of electromagnetic fields as well as light-matter interaction. We studied quantum evolution of a photon wavepacket using numerical simulation. ... -
On the phase-space analysis of photon mediated quantum state transfer in nanophotonic waveguidance
(Elsevier GmbH, 2013-10)A cavity quantum electrodynamics (QED) based approach for transferring quantum state between quantum nodes has been proposed, wherein a rubidium ( 87Rb) atom trapped inside a two-mode optical cavity forms the quantum node ... -
On the structure of shape memory alloys
(Trans Tech Publications, 2013-12)The paper presents the obtaining of shape memory alloys, base copper and a diffractometer and microscopic study on some samples. The study was made on CuZnAl samples, obtained by classic casting and educated. The shape ... -
“Once I get stuck…” A study of communication strategies of undergraduate English language learners
(Universiti Malaysia PerlisCentre of International Languages, 2014-02)This study set out to examine communication strategies, the strategies that learners employ when they confront a problem in communication as they possess inadequate competence in presenting their ideas. It also explored ... -
Online consumer’s behavior on product review and the likelihood of them being fraud victims
(School of Business Innovation and Technopreneurship, Universiti Malaysia Perlis (UniMAP), 2021-10)This study is driven by the rising numbers of Malaysian online consumers being fraud victims. This phenomenon is speculated to grow if there is no action taken in minimizing it. The purpose of this study is to examine the ... -
Operating temperature analysis of LED with cylindrical Cu slug
(Trans Tech Publications, 2014-01)High power light emitting diodes is the new era of lighting due to momentous supremacy in terms of lighting efficacy over traditional lighting systems. The reliability of LED is dependent on its junction temperature. This ... -
Optical and photoconductivity spectra of novel Ag 2In 2SiS 6 and Ag 2In 2GeS 6 chalcogenide crystals
(Elsevier B.V., 2012-06)Complex spectral studies of near-band gap and photoconductive spectra for novel Ag 2In 2SiS 6 and Ag 2In 2GeS 6 single crystals are presented. The spectral dependences of photoconductivity clearly show an existence of ... -
Optical and Structural Properties of ZnO:Au Nanocomposite Thin films
(Universiti Malaysia Perlis (UniMAP), 2018-07)Zinc Oxide (ZnO) nanoparticles were mixed carefully with gold (Au) nanoparticles. These chemical-compounds were used to make nanocomposite thin films by using the technique of spray pyrolysis. This work studies the XRD ... -
Optical constact of the poly vinyl alcohol grafted Rhodamine B (PVA-g-Rh B)
(Universiti Malaysia Perlis, 2014)The optical constants of the prepared PVA-g-Rh B thin films have been studied. The real and imaginary part of the complex refractive index and dielectric constant of the copolymer were determined. The optical conductivity ... -
Optical domain service differentiation using spectral-amplitude-coding
(Elsevier Inc., 2009)We have implemented a new service differentiation technique in the optical domain using a spectral-amplitude-coding (SAC) variant of optical code division multiple access (OCDMA). The newly developed code, named KS ... -
Optical fibre sensor using frequency beating technique
(Universiti Malaysia Perlis (UniMAP), 2020-04)In this paper, a new method to realize the optical fibre sensor using an optical heterodyne technique (OHT) is proposed and numerically demonstrated. In this method, the bandpass filter (BPF) was utilized as a reference ... -
Optical Gain and Confinement in Gaas/Algaas Structure Quantum Well Lasers
(Universiti Malaysia Perlis (UniMAP), 2018-01)In this paper we investigate the optical gain seen by the polarization modes for each of Transverse Electric (TE) and Transverse Magnetic(TM) of GaAs/Al0.32Ga0.68As quantumwell lasers. The factor confinement and modal ... -
Optical Generation of 80 GHz Downstream Data in Radio over Fiber System Based on Stimulated Brillouin Scattering
(EDP Sciences, 2017)In this work, we proposed Stimulated Brillouin Scattering (SBS) in an optical generation of millimeter waves (mm-waves) for radio over fiber (RoF) system with the transmission of 2.5 Gbps data rate. SBS method is achieved ... -
Optical investigations of GaN deposited nano films using pulsed laser ablation in ethanol
(Universiti Malaysia Perlis (UniMAP), 2022-04)We provide an optical study on GaN thin film testing created by pulsed laser (ablation) in liquid. This study applied six different energies for ablated GaN nanoparticles in the liquid. According to the XRD test, the ... -
Optical investigations using ultra-soft pseudopotential calculations of Si0.5Ge0.5 alloy
(Elsevier Ltd, 2008-12)Ultra-soft pseudopotential (US-PP) calculations with a powerful package called VASP (Vienna ab initio simulation package) are used. The total density of state and the energy gap of Si0.5Ge0.5 alloy of zinc-blende structure ... -
Optical modulator with ZnO bulk single crystals
(Universiti Malaysia Perlis (UniMAP), 2017)An optical modulator was fabricated with semiconductor ZnO by associating a nematic liquid crystal layer with indium–tin oxide. This device revealed the height variation in the phase and refractive index of irradiation ...