Browsing School of Electrical Systems Engineering (Articles) by Title

Now showing items 63-82 of 115

    • 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 ...

    • Performace of wind turbine based on wind speed data and turbine tower height in Kangar, Northern Malaysia 

      Ismail, Daut, Prof. Dr.; Muhammad Irwanto, Misrun; Mohd Irwan, Yusoff; Gomesh Nair, Shasidharan; Noor Syafawati, Ahmad (Australian Journal of Basic and Applied Sciences, 2011-07)
      This paper presents an analysis of the wind speed characteristic in Kangar, Northern Malaysia. The Weibull distribution function is applied to analyze the wind speed characteristic and used to calculate the wind power ...

    • Performance enhancement of OCDMA system using NAND detection with modified double weight (MDW) code for optical access network 

      Nasim, Ahmed; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Hilal Adnan, Fadhil, Dr.; R. Badlishah, Ahmad, Prof. Dr.; Mohd Abdur Rashid, Dr. (Elsevier GmbH, 2013-07)
      In this paper, we have extensively analyzed the OCDMA system performance using modified double weight (MDW) code with NAND detection technique as newly developed by the authors. In theoretical analysis, various noises and ...

    • 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 ...