Now showing items 74-93 of 185

    • First principles study of the structural, elastic and electronic properties of Ti2InC and Ti2InN 

      Benayad, N.; Khenata, R.; Litimein, F.; Reshak, Ali Hussin; Rabah, M.; Baltache, H. (World Scientific Publishing Company, 2011-04-20)
      The structural, elastic and electronic properties of Ti2InC and Ti2InN compounds have been calculated using the full-potential linear muffin-tin orbital (FP-LMTO) method. The exchange and correlation potential is treated ...
    • First-principles calculations of structural, elastic, electronic, and optical properties of perovskite-type KMgH3 crystals: Novel hydrogen storage material 

      Ali Hussain, Reshak, Prof. Dr.; Mikhail Y., Shalaginov; Yasir, Saeed; Kityk, I. V.; Auluck, S. (American Chemical Society, 2011-03-31)
      We report a first-principles study of structural and phase stability in three different structures of perovskite-types KMgH3 according to H position. While electronic and optical properties were measured only for stable ...
    • First-principles study of spin-polarized electronic band structures in ferromagnetic Zn1-xTMxS (TM = Fe, Co and Ni) 

      Saeed, Y.; Nazir, S.; Ali H. Reshak, Al-Jaary; Shaukat, A. (Elsevier B. V., 2010-10-22)
      We report a first-principles study of structural, electronic and magnetic properties of crystalline alloys Zn1-x TMx S (TM = Fe, Co and Ni) at x = 0.25. Structural properties are computed from the total ground state ...
    • Foot plantar pressure measurement system: A review 

      Abdul Hadi, Abdul Razak; Zayegh, Aladin; Begg, Rezaul K.; Yufridin, Wahab (MDPI, Basel, Switzerland., 2012)
      Foot plantar pressure is the pressure field that acts between the foot and the support surface during everyday locomotor activities. Information derived from such pressure measures is important in gait and posture research ...
    • FP-APW + lo calculations of the elastic properties in zinc-blende III-P compounds under pressure effects 

      A., Bouhemadou; R., Khenata; M., Kharoubi; Yarub K.A, Al Douri; T., Seddik; Ali H., Reshak (Elsevier B.V., 2009-04)
      The effect of high-pressures on the structural and elastic properties of XP zinc-blende compounds, with X = B, Al, Ga and In, has been investigated using the full-potential augmented plane wave plus local orbitals method ...
    • FP-LAPW investigation of structural, electronic, linear and nonlinear optical properties of ZnIn2Te4 defect-chalcopyrite 

      Ayeb, Y.; Ouahrani, T.; Khenata, R.; Reshak, Ali H.; Rached, D.; Bouhemadou, A.; Arrar, A. (Elsevier B. V., 2010-12)
      A theoretical study of structural, electronic, linear and nonlinear optical properties of ZnIn2Te4 defect-chalcopyrite is presented using the full-potential linearized augmented plane-wave (FP-LAPW) method. The exchange ...
    • FPGA based SPWM Bridge Inverter 

      Mohd Nazrin, Md Isa; Muhammad Imran, Ahmad; Sohiful Anuar, Zainol Murad; Mohd Khairuddin, Md Arshad (Science Publications, 2007)
      This study presents methodology to generate sinusoidal pulse width modulation (SPWM) signal using Field Programmable Gate Array, FPGA technology. We discussed the unipolar switching scheme and the methodology to generate ...
    • FSS microchannel fluid flow profile investigation at high and low Re number 

      Nor Shakirina, Nadzri; Retnasamy, Vithyacharan; Zaliman, Sauli, Dr.; Tan, Hsio Mei; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (AENSI Publisher All rights reserved, 2013-10)
      The fundamental understanding of dynamic fluid flow behavior in different geometry channel is crucial due to transport phenomena influence on the key design and process control of the microfluidic systems. Recently, the ...
    • Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect 

      F., Semari; R., Khenata; M., Rabah; A., Bouhemadou; S., Omran; Ali H., Reshak; D., Rached (Elsevier Inc., 2010-12)
      The structural, elastic, electronic, and optical properties of cubic spinel MgIn2S4 and CdIn2S4 compounds have been calculated using a full relativistic version of the full-potential linearized-augmented plane wave with ...
    • GaN Schottky barrier photodiode on Si (1 1 1) with low-temperature-grown cap layer 

      Chuah, Lee Siang; Z., Hassan; H., Abu Hassan; Naser Mahmoud, Ahmed (Elsevier B.V., 2009-07)
      In this work, GaN films were grown on three-inch silicon substrates by plasma-assisted molecular beam epitaxy (PAMBE) with AlN (about 200 nm) as the buffer layer. Finally, a thin AlN cap layer (50 nm) was grown on the GaN ...
    • Growth of GaN quantum dots using [(C2H5)4]Si by plasma assisted MOCVD 

      Arsyad, F. S.; Subagio, A.; Sutanto, H.; Arifin, P.; Budiman, M.; Barmawi, M.; Husien, I.; Zul Azhar, Zahid Jamal (Institute of Electrical and Electronics Engineering (IEEE), 2006-07)
      Growth of GaN quantum dots on AlGaN layer using [(C2H 5)4]Si [TESi] by plasma assisted metal organic chemical vapor deposition (PA-MOCVD) is reported. The surface profile of the grown GaN quantum dot was determined by ...
    • Heat dissipation analysis under natural convection condition on high power LED 

      Vairavan, Rajendaran; Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (AENSI Publisher All rights reserved, 2013-10)
      As the technology downscales with superior power and increased package density, the thermal effects of the high power LED are significant. Thus, the operating junction temperature of the high power light emitting diodes ...
    • Heat sink fin number variation analysis on single chip high power LED 

      Zaliman, Sauli, Dr.; Vairavan, Rajendaran; Retnasamy, Vithyacharan (Trans Tech Publications, 2014-01)
      Thermal management of high power LED is crucial the reliability and performance of the LED affected by the heat produced during photon emission. Heat sinks are utilized to dissipate the heat and to lower the operating ...
    • Height measurement based on fringe projection 

      Retnasamy, Vithyacharan; Zaliman, Sauli, Dr.; Nor Shakirina, Nadzri; Veriven, Christopher John (Trans Tech Publications, 2014)
      A three-dimensional surface measurement using fringe projection technique has received attention among the researches for the last few decades.However choosing the best method is the challenge because one needs to consider ...
    • High efficiency, good linearity, and excellent phase linearity of 3.1-4.8 GHz CMOS UWB PA with a current-reused technique 

      Sohiful Anuar, Zainol Murad; Pokharel, R. K.; Sapawi, R.; Kanaya, H.; Yoshida, K. (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
      This paper describes the design of 3.1 to 4.8 GHz CMOS power amplifier (PA) for ultra-wideband (UWB) applications using 0.18-m CMOS technology. The UWB PA proposed here employs cascode topology with a currentreused technique ...
    • High performance systolic array core architecture design for DNA sequencer 

      Dayana, Saiful Nurdin; Mohd. Nazrin, Md. Isa; Rizalafande, Che Ismail; Muhammad Imran, Ahmad (EDP Sciences, 2018)
      This paper presents a high performance systolic array (SA) core architecture design for Deoxyribonucleic Acid (DNA) sequencer. The core implements the affine gap penalty score Smith-Waterman (SW) algorithm. This time-consuming ...
    • High power LED heat dissipation analysis via copper diamond slug 

      Vairavan, Rajendaran; Zaliman, Sauli, Dr.; Retnasamy, Vithyacharan; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (AENSI Publisher All rights reserved, 2013-10)
      The emergence of high power light emitting diode as a novel electronic based light source is due to its vast advantage in terms of optical efficacy, low power consumption and enhanced life time. However, the performances ...
    • High sensitivity fiber Bragg grating pressure sensor using thin metal diaphragm 

      Ahmad, H.; Wu, Yi Chong; Thambiratnam, K.; Zulklifi, M.Z.; Prabakaran, Poopalan, Prof. Madya; Thant, M. M. M; Harun, S. W. (Institute of Electrical and Elctronics Engineering (IEEE), 2009-12)
      A high sensitivity pressure sensor design without a polymer transducer is demonstrated in this paper. The sensor uses a thin metal diaphragm as a pressure transducer instead of a polymer. The sensor is tested to a maximum ...
    • High-sensitivity pressure sensor using a polymer-embedded FBG 

      H., Ahmad; S. W., Harun; W. Y., Chong; M. Z., Zulkifli; M. M. M., Thant; Z., Yusof; Prabakaran, Poopalan (Wiley Periodicals, Inc., 2008-01)
      A new pressure sensor based on fiber Bragg gratings (FBG), is described with high-pressure sensitivity. The sensor is configured by embedding the FBG in a polymer-field aluminum casing with an opening on one side, which ...
    • A hybrid expert system approach for telemonitoring of vocal fold pathology 

      Hariharan, Muthusamy, Dr.; Kemal, Polatb; Sindhu, Ravindran; Sazali, Yaacob, Prof. Dr. (Elsevier B.V., 2013)
      Acoustical parameters extracted from the recorded voice samples are actively pursued for accurate detection of vocal fold pathology. Most of the system for detection of vocal fold pathology uses high quality voice samples. ...