Now showing items 54-73 of 115

    • Low wireless power transfer using Inductive Coupling for mobile phone charger 

      Mohd Fareq, Abd. Malek, Dr.; Muhammad Fitra, Zambak; Muhamad Irwanto, Misrun; Syafruddin, Hasan; Mohamad Arinal, Abd Halim (Institute of Physics Publishing, 2014)
      A wireless power transfer (WPT) using inductive coupling for mobile phone charger is studied. The project is offer to study and fabricate WPT using inductive coupling for mobile phone charger that will give more information ...
    • A method for ground fault distance computation in unearthed medium voltage distribution network 

      Mohd Rafi, Adzman; Lehtonen, Matti (Praise Worthy Prize S.r.l., 2012)
      In networks with unearthed or compensated neutral, earth fault signals consist of different frequency components, which result from charging and discharging of the network capacitances. The charge transient which usually ...
    • Microcontroller based PWM inverter for speed control of a three phase induction motor 

      M. A., Latif; Mohammad Jahangir, Alam; Mohd Abdur Rashid, Dr.; Anayet, Karim; Nur Hafiezza, Ramly; Ismail, Daut, Prof. Dr. (Engg Journals Publications, 2013)
      Three phase induction motor has proven to be an extremely reliable electromechanical energy conversion device for over 100 years. The speed control of induction motor is a crying need for the real world industrial applications. ...
    • Minimization of open circuit voltage fluctuation of quantum dot based solar cell using InN 

      Farah Ayuni, Rosli; Mohd Abdur Rashid, Dr.; Mohd Fareq, Abd. Malek, Dr.; Muzaidi, Othman @ Marzuki; Ahmad Zaidi, Abdullah, Engr.; Md. Abdullah, Al Humayun (Trans Tech Publications, 2013)
      This paper reports the improvement of open circuit voltage stability of solar cell using InN based quantum dot in the active layer of the device structure. We have analyzed theoretically the temperature dependence of the ...
    • Modeling double Blumlein with variable duration and polarity using orcad PSpice 

      Noor Asma, Mohd Razali; Azuwa, Ali (Elsevier Ltd., 2012)
      Double Blumlein generator is an excellent technique in generating high voltage short pulsed power with fast rise time signal. However properties of fixed pulse duration and polarity of Blumlein configuration limits the ...
    • Modeling of coaxial slot waveguides using analytical and numerical approaches: Revisited 

      Kok, Yeow You, Dr.; Jamaliah, Salleh; Mohd Fareq, Abd. Malek, Dr.; Zulkifly, Abbas, Prof. Madya Dr.; Cheng, Ee Meng, Dr.; Lee, Kim Yee, Dr. (Hindawi Publishing Corporation, 2012)
      Our reviews of analytical methods and numerical methods for coaxial slot waveguides are presented. The theories, background, and physical principles related to frequency-domain electromagnetic equations for coaxial waveguides ...
    • New approach for evaluation of the performance of spectral amplitude coding-optical code division multiple access system on high-speed data rate 

      Thanaa Hussein, Abd.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Dr.; Mohd Abdur, Rashid, Dr. (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 ...
    • A new switching scheme for Z-source inverter to minimize ripples in the Z-source elements 

      Sengodan, Thangaprakash; Ammasai, Krishnan, Dr. (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 ...
    • A new ultrasonic exponential decay pulser technique for low concentrations detection and measurements 

      Muhammed Sabri, Salim; Mohd Fareq, Abd. Malek, Dr.; Naseer, Sabri; Noaman, Mohammad Noaman, Dr.; Khairudi, Mohd Juni; Noor Anida, Abu Talib (Praise Worthy Prize S.r.l., 2013)
      The objective of this study was to design and implement a new ultrasonic pulser with adjustable concentration detection. The new technique based on transmits a multiple ultrasound pulses with decay power through slurry to ...
    • A new ultrasound pulser technique for wide range measurements 

      Mohammad Shahril, Salim; Mohd Fareq, Abd. Malek, Dr.; Noaman, Mohammad Noaman, Dr.; Naseer, Sabri; Latifah, Mohamed; Khairudi, Mohd Juni (IOP Publishing Ltd, 2013)
      The objective of this research was to design and implement a new ultrasonic pulse-power-decay technique that transmits multiple ultrasound pulses through slurry to determine the lowest concentration that can provide an ...
    • Nonlinear optical characterization of phosphate glasses based on ZnO using the Z-scan technique 

      Masoumeh, Shokati Mojdehi; Wan Mahmood, Mat Yunus, Prof. Dr.; Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Nizam, Tamchek, Dr. (Chinese Physical Society and IOP Publishing Ltd, 2013-11)
      The nonlinear optical properties of a phosphate vitreous system [(ZnO) x - (MgO)30-x- (P2O5)70], where x = 8, 10, 15, 18, and 20 mol% synthesized through the melt-quenching technique have been investigated by using the ...
    • A novel approach evaluation for enhancing networks 

      Satea Hikmat, Alnajjar; Mohd Fareq, Abd. Malek, Dr.; Mohammad Shahrazel, Razalli, Dr. (Elsevier B.V., 2013)
      This study reveals for a creation of a system that has the ability to prove the technical feasibility and the advantages of a joint Radio Frequency and fiber optic system with self-trace directional control between deployed ...
    • A novel capacitor voltage control for Z-source inverter based photovoltaic power conversion systems 

      Sengodan, Thangaprakash (Institution of Engineers Australia, 2012)
      Z-source inverter (ZSI) could be used to realise both DC voltage boost and DC-AC inversion in one single stage with reduced number of power switches for photovoltaic (PV) power conversion systems (PCS). Maximum power point ...
    • A novel, high-speed image transmitter for wireless capsule endoscopy 

      Md. Rubel, Basar; Mohd. Fareq, Abd. Malek, Dr.; Mohd Iskandar, Mohd Saleh; Mohd Shaharom, Idris; Khairudi, Mohd Juni; Azuwa, Ali; Nur Adyani, Hj. Mohd Affendi; Nuriziani, Hussin (EMW Publishing, 2013)
      Wireless capsule endoscopy (WCE) was developed as a painless diagnostic tool for endoscopic examination of the gastrointestinal (GI) tract, but, to date, the low operating power of the capsule and the high data rate of the ...
    • Novel: Time optimization model for centrifugation process: Application in human blood-plasma separation 

      Muhammed Sabri, Salim; Mohd Fareq, Abd. Malek, Dr.; Naseer, Sabri; Noaman, Mohammad Noaman, Dr.; Khairudi, Mohd Juni (Elsevier Ltd, 2013)
      One way to accurately diagnose many human diseases is to conduct tests on a sample of blood. These tests are based on analyzing precisely the results of a blood plasma sample free from any other blood cells. This article ...
    • On the effectiveness of time and date-based sun positioning solar collector in tropical climate: A case study in Northern Peninsular Malaysia 

      Salsabila, Ahmad; Suhaidi, Shafie, Dr.; Mohd Zainal Abidin, Ab. Kadir, Prof.; Noor Syafawati, Ahmad (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 ...
    • Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions 

      Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier, 2013-01)
      Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x(MgO)30−x(P2O5)70 were prepared by melt quenching technique in the range of 5 ⩽ x ⩽ 20 mol%. The optical absorption spectra of the glasses were measured ...
    • Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions 

      Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier B.V., 2013-01)
      Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x (MgO)30 x (P2O5)70 were prepared by melt quenching technique in the range of 5 6 x 6 20 mol%. The optical absorption spectra of the glasses were ...
    • Optimal coordinated design of multiple damping controllers based on PSS and UPFC device to improve dynamic stability in the power system 

      Ali Nasser, Hussain; Mohd Fareq, Abd. Malek, Dr.; Mohd Abdur Rashid, Dr.; Latifah, Mohamed; Nur Adyani, Hj. Mohd Affendi (Hindawi Publishing Corporation, 2013)
      Unified Power Flow Controller (UPFC) device is applied to control power flow in transmission lines. Supplementary damping controller can be installed on any control channel of the UPFC inputs to implement the task of Power ...
    • Optimal overcurrent relay coordination: a review 

      Muhamad Hatta, Hussain; Siti Rafidah, Abdul Rahim, Dr.; Ismail, Musirin, Prof. Dr. (Elsevier Ltd., 2013)
      This paper presents an overview on optimal overcurrent relay coordination in protection system and protective relays. Efforts have been made to include all methods used for the coordination of overcurrent relays. It includes ...