Now showing items 93-112 of 115

    • SCPS solution for heterogeneous networks for isolated areas: a novel design approach 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr. (ICIC International, 2012)
      This research presents an innovative system that has capability to prove the technical feasibility and advantages of a joint radio frequency (RF) and free space optic (FSO) system with a synchronized self-trace directional ...
    • A simple technique for improving the anechoic performance of a pyramidal absorber 

      M. Nadeem, Iqbal; Mohd Fareq, Abd. Malek, Dr.; Yeng, S. Lee; Liyana, Zahid; Muhammad Iqbal, Muhammad Hussain, Dr.; Mohd F. H., A Malek; Nur Fairuz, Mohamed Yusof; Norshafinash, Saudin; Noor Anida, Abu Talib (EMW Publishing, 2013)
      In this paper, we propose a very simple technique that offers an extra degree of freedom to optimize the design of a tire dust-based absorber with reduced height. Cladding is a technique that is used to enhance the surface ...
    • Simplification of sun tracking mode to gain high concentration solar energy 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (Science Publications, 2007)
      Power conversion from solar thermal energy to electrical energy is still very cost-intensive. Serious effort has to be given in the development of the concentrator or heliostat structure expenditure which contributing the ...
    • Simulation and optimization of a stand-alone sustainable renewable energy system 

      Alhassan, Salami Tijani; Ku Muhammad Ridzuan, Ku Suid; Yazhar, Yatim (Trans Tech Publications, 2014)
      This paper presents a state of the art design of a stand-alone photovoltaic (PV) system to provide the required electrical power for a single refrigeration system at Kuala Terengganu, Malaysia. The simulation result shows ...
    • Small-signal AC modeling technique of Buck converter with DSP based Proportional-Integral-Derivative (PID) controller 

      Mohd Faridun Naim, Tajuddin; Rahim, N. A. (IEEE, 2009-12-16)
      Control applications of switched mode power supplies have been widely explored. The main objective of research and development (R&D) in this field has always been to find the simplest method to analyze and model the DC/DC ...
    • Smart platforms surveillance system to enhance communication in disaster environments 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr.; Zainab Nazar, Khalil Wafi (Engg Journals Publications, 2013-04)
      The modern communications technology is a positive case for disaster risk reduction, since they to it provides critical information to realize risk assessment. In this study, we present an innovative technique is characterized ...
    • Smart receiver system of green hybrid antennas 

      Mohd. Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin, Assoc. Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Muzammil, Jusoh, Dr.; Mohd A., Jamlos (Wiley Periodicals, Inc., 2013-04)
      A hybrid of multiformities receiver system is proposed in this article.The system is developed through a combination of reconfigurable beam-steering antenna, reconfigurable beam-shaping antenna, and data acquisition (DAQ) ...
    • Solar PV and grid-connected electricity system with multiple modes operation for homes and buildings 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib, Assoc. Prof. Dr.; Tunku Muhammad Nizar, Tunku Mansur; Nor Hanisah, Baharudin (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 ...
    • Stability analysis of solar cell characteristics above room temperature using indium nitride based quantum dot 

      Mohd Abdur Rashid, Dr.; Adawati, Yusof; Md. Abdullah, Al Humayun; Abdul Kareem Naser, Mahmood Al-Khateeb; Tamaki, Shiro (Science Publication, 2013-09)
      This study represents the improvement of stability of solar cell characteristics above room temperature. We have analyzed theoretically the temperature dependence of three major characteristics of solar cell using Ge and ...
    • Study and simulation of an edge couple split ring resonator (EC-SRR) on truncated pyramidal microwave absorber 

      Nornikman, Hassan; Badrul Hisham, Ahmad, Assoc. Prof. Dr.; Mohamad Zoinol Abidin, Abd. Aziz; Mohd. Fareq, Abd. Malek, Dr.; H, Imran; Ali Rani, Othman (EMW Publishing, 2012)
      Split ring resonator (SRR) structure can potentially be incorporated onto the truncated pyramidal microwave absorber. This study considers three different patterns of edge couple split ring resonator (EC-SRR) designs. Each ...
    • Teaching distance relay using Matlab/Simulink graphical user interface 

      Muhd Hafizi, Idris; Surya, Hardi; Mohd Zamri, Hasan (Elsevier Ltd., 2013)
      This paper describes the modeling of distance relay using Matlab/Simulink package. SimPowerSystem toolbox was used for detailed modeling of distance relay, transmission line and fault simulation. Inside the modeling, single ...
    • Theoretical characteristics of 1.55 μm InN based quantum dot laser 

      Md Mottaleb, Hossain; Md. Abdullah, Al Humayun; Ashraful Ghani, Bhuiyan (The International Society for Optical Engineering (SPIE), 2013-08)
      The theoretical characteristics of photon emission at 1.55 μm wavelength are presented considering single layer of indium nitride (InN) quantum dots in the active region. The transparency threshold has been obtained at ...
    • TiO2 dye sensitized solar cells cathode using recycle battery 

      Ismail, Daut, Prof. Dr.; Muhammad Fitra, Zambak; Muhammad Irwanto, Misrun, Dr.; Shasidharan, Gomesh Nair; Mohd. Irwan, Yusoff (IOP Publishing Ltd, 2013)
      This paper proposed an alternative source of carbon material from recycled battery for the fabrication of cathode of a dye sensitized solar cell. Carbon from recycle battery is extracted and used to fabricate the cathode ...
    • Tracing generators' output in transmission open access 

      Mohd Herwan, Sulaiman; Omar, Aliman; Mohd Wazir, Mustafa; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2007-12)
      Over the past few years, the electric power utility industries around the world have experienced a strong drive towards deregulation. Based on the experience of deregulation of the communication, natural gas and airline ...
    • Tracing reactive power flow and loss in electric power systems 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut; Surya Hardi, Amrin; Mohamad Suhaizal, Abu Hassan (Regional Energy Resources Information Center (RERIC), Asian Institute of Technology (AIT), 2009-03)
      This paper suggests a systematic method to trace the reactive power flow and loss named as Proportional Tree Method (PTM). From the power flow solution, the test system is modeled conceptually like a tree, where the reactive ...
    • Tracing real and reactive power in open access network 

      Mohd Herwan, Sulaiman; Mohd Wazir, Mustafa; Omar, Aliman; Ismail, Daut (Universiti Malaysia Perlis, 2008)
      The main objective of this paper is to present a simple and general methodology for tracing the power output of each generator to the line flows and loads through out the electrical power network. The tracing algorithm is ...
    • Tracking error analysis of a rotation-elevation mode heliostat 

      Omar, Aliman; Ismail, Daut; Muzamir, Isa; Mohd Rafi, Adzman (Science Publications, 2007)
      For the past few years, great efforts have been done in improving the tracking accuracy of a newly proposed rotation-elevation tracking mode heliostat. A special simulation program has been developed to systematically ...
    • Transmission loss allocation in deregulated power system using the hybrid genetic algorithm-support vector machine technique 

      M. W, Mustafa; Mohd Herwan, Sulaiman; H., Shareef; S. N., Abd. Khalid (Cyber Journals, 2011-01)
      This paper proposes a new method to trace the transmission loss in deregulated power system by incorporating the Genetic Algorithm (GA) and Least Squares Support Vector Machine (LS-SVM). The idea is to use GA to find ...
    • An ultrasonic sensing system for assisting visually impaired person 

      Norkharziana, Mohd Nayan; Ruben, Latchmanan (Penerbit UTM Press, 2016)
      This paper presents a design and analysis of ultrasonic sensing system for visually impaired person. This system operation consisting of ultrasonic sensor and a microcontroller as the brain for the system. The experimental ...
    • Unified MPPT control strategy for Z-source inverter based photovoltaic power conversion systems 

      Sengodan, Thangaprakash (The Korean Institute of Power Electronics, 2012-01)
      Z-source inverters (ZSI) are used to realize both DC voltage boost and DC-AC inversion in single stage with a reduced number of power switching devices. A traditional MPPT control algorithm provides a shoot-through interval ...