Now showing items 76-95 of 115

    • Performance improvement of dye sensitized solar cell by using recycle material for counter electrode 

      Gomesh Nair, Shasidharan; Mohammad Shafawi; Muhammad Irwanto; Mohd Irwan, Yusoff; Muhammad Fitra; Norman, Mariun (Trans Tech Publications, 2013)
      This project is to investigate the counter electrode material from two different carbon sources to fabricate dye sensitized solar cell (DSSC). The carbon sources are extracted from battery and pencil lead. The method to ...
    • Performance improvement of spectral amplitude coding-optical code division multiple access systems using NAND detection with enhanced double weight code 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (The Optical Society of Japan, 2012-01)
      The bit-error rate (BER) performance of the spectral amplitude coding-optical code division multiple access (SACOCDMA) system has been investigated by using NAND subtraction detection technique with enhanced double weight ...
    • Performance of photovoltaic module at different tilt angles in Perlis, Northern Malaysia 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto, Misrun; Ezzani, M.; Mohd Irwan, Yusoff (Praise Worthy Prize, 2010-12)
      This paper presents a calculation of the tilt angles and the solar irradiance on PV module in Perlis, Nortern Malaysia. A mathematical modeling is used to calculate the tilt angles and the solar irradiance, which depend ...
    • The performance of two antenna design shapes in ultra-wideband wireless applications 

      Rashid A., Fayadh; Mohd Fareq, Abd. Malek, Dr.; Hilal Adnan, Fadhil, Dr.; Jaafar Adhab, ALdhaibani (Asian Research Publishing Network (ARPN), 2014)
      The extensive requirements for small Ultra wideband (UWB) communication systems lead to design active and small size antennas. In this research two rectangular microstrip antennas were designed to cover the UWB ...
    • Photoinduced effects in l-alanine crystals 

      Wojciechowski, A.; Ozga, K.; Ali H., Reshak Al-Jaary; Miedzinski, R.; Berdowski, J.; Tylczyński, Z. (Elsevier B.V., 2010-09-30)
      An influence of the cw laser treatment at 660 nm (red), 532 nm (green) and 405 nm (blue) wavelengths on the absorption in l-alanine crystals was studied. We have established that increasing time of illumination for red ...
    • Photovoltaic powered uninterruptible power supply using microcontroller PIC16F628-I/P 

      Muhamad Irwanto, Misrun; Mohd Fareq, Abd. Malek, Dr.; Sasongko, P. Hadi; Gomesh Nair, Shasidharan; Mohd Irwan, Yusoff (Trans Tech Publications, 2014)
      Uninterruptible power supply (UPS) sits between a power supply such as wall outlet and devices to prevent undesired feature that can occur within the power source such as outages, sags, surges and bad harmonics from the ...
    • Physiological signal analysis for cognitive state estimation 

      Mohiuddin, Ahmad; Atiqul, Islam; Khan Munia, T. T.; Mohd Abdur, Rashid; Tunku Muhammad Nizar, Tunku Mansur (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 ...
    • Power factor performance on 0.35 mm and 0.50 mm thicknesses of steel sheets for 0.5 Hp induction motor using FEM software 

      Yanawati, Yahya; Nor Hanisah, Baharudin; Tunku Muhammad Nizar, Tunku Mansur; Syatirah, Mohd Noor; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim, Ir. (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 ...
    • Power flow and loss tracing in deregulated transmission system using proportional tree method 

      Mohd. Herwan, Sulaiman; Mohd. Wazir, Mustafa; Omar, Aliman (Praise Worthy Prize S.r.l., 2008)
      Tracing the flow of electricity becomes an important issue in transmission open access. This is due to transmission open access may bring the fairness and transparency to all users. Since the complexity of electrical ...
    • Reactive power tracing in pool-based power system utilising the hybrid genetic algorithm and least squares support vector machine 

      Mohd Wazir, Mustafa, Prof. Dr.; Mohd Herwan, Sulaiman; Hussain, Shareef, Dr.; Siti Nur Hidayah, Abd Khalid (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 ...
    • Realibility enhancement of a traffic signal light system using a mean-variance approach 

      Shamshul Bahar, Yaakob; Watada, Junzo (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 ...
    • A reconfigurable ultra wide band (UWB) compact tree-design antenna system 

      Muzammil, Jusoh; Mohd Faizal, Jamlos, Dr.; Muhammad Ramlee, Kamarudin; Mohd Fareq, Abd. Malek, Dr.; Muhamad Asmi, Romli; Zahari, Awang Ahmad; Mahathir, H. Mat (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 ...
    • Relationship between the solar radiation and surface temperature in Perlis 

      Ismail, Daut, Prof. Dr.; Mohd Irwan, Yusoff; Safwati, Ibrahim; Muhammmad Irwanto; Gomesh Nair, Shasidharan (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 ...
    • Resemblance of rain fall in Bangladesh with correlation dimension and neural network learning 

      Abu Nasir, Mohammad Enamul Kabir; Hussain Muhammad Imran, Hasan; Mohd Abdur Rashid, Dr.; Azralmukmin, Azmi; Md. Zakir, Hossain; Md. Shahjahan (Science Publication, 2013-10)
      Rain fall and Temperature are undoubtedly two important factors that balance water in the environment. Adequate study of the rain behavior helps to forecast it. The time series obtained from different stations of the country ...
    • A review on existing and future energy sources for electrical power generation in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib (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, ...
    • Review on Malaysian and Thailand's perspective towards renewable energy 

      Gomesh Nair, Shasidharan; Muhammad Irwanto, Misrun; Mohd Irwan, Yusoff; Muhammad Fitra; Uda, Hashim, Prof. Dr.; Norman, Mariun (Trans Tech Publications, 2014)
      This paper presents a review on Malaysia and Thailand’s view on renewable energy mainly in the area of solar energy. It is based on a survey conducted on random subjects in Malaysia raging from different discipline such ...
    • Rubber tire dust-rice husk pyramidal microwave absorber 

      Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr.; O., Nadiah; Nornikman, Hassan; M., Ahmed; M. Z. A., Abd Aziz; A. R., Osman; Soh, Ping Jack; Azremi, Abdullah Al Hadi; A., Hasnain; Mohd Nasir, Taib (EMW Publishing, 2011)
      Rubber tire dust-rice husk is an innovation in improving the design of pyramidal microwave absorbers to be used in radio frequency (RF) anechoic chambers. An RF anechoic chamber is a shielded room covered with absorbers ...
    • 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 ...