Conference Papers: Recent submissions

Now showing items 1041-1060 of 2600

    • The effect of austenite temperature on the fatigue strength of mild steel 

      Syayuthi; Haftirman, Dr.; Chia, Suk Foon (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      The effect of austenite temperature on the fatigue strength of mild steel is investigated by using the Scanning Electron Microscopic (SEM). Fatigue tests under the rotating bending fatigue testing machine has been carried ...

    • The effect of row of blades on self-excited instability of rotating systems 

      Mohammad-Reza, Ghazavi; Asghar, Najafi (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      The self-excited instability, which is common in rotating systems, is investigated in a bladed disk system. The instability happens due to internal damping and causes asynchronous vibrations. A bladed disk model of the ...

    • An optimal strategy for differential braking to enhance vehicle stability in severe turning maneuvers 

      M. R., Jafari; M., Mirzaei (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      In a turning maneuver with high lateral acceleration, the decrease of restoring yaw moment generated by tire lateral force is the basic cause of vehicle unstable motion called spin motion. A practical approach to generate ...

    • Assessment engine oil using UKM acoustic emission energy viscosity model (EAEUKM) 

      Othman, Inayatullah; Nordin, Jamaludin; Mohd Jailani, Mohd Nor; Fauziah, Mat; Aziz, Baharuddin (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02)
      Estimation the diesel engine oil viscosity in an engine operation is very important since it affects the engine performance. One of the most promising engine oil viscosity monitoring methods is based on the analysis of ...

    • Dynamic analysis of drillstring with FEM by considering wellbore-drillstring contact 

      Maziar, Mohammadzadeh; Mohammadreza, Ghazavi; Mohammad, Sahebkar (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      In this research,the finite element method (FEM) is applied to analyze the drillstring vibration. The contact between different parts of the drillstring and the borehole wall has been considered which was ignored by ...

    • Design and development of Fuzzy Expert System for diagnosis of hypertension 

      Azian Azamimi, Abdullah; Zulkarnay, Zakaria; Nur Farahiyah, Mohammad (Institute of Electrical and Electronics Engineers (IEEE), 2011-01-24)
      The aim of this study is to design a Fuzzy Expert System (FES) for diagnosis of hypertension risk for patients aged between 20’s, 30’s and 40’s years and is divided into male and female gender. The input data is collected ...

    • Effect of load variations in DC-DC converter 

      Husna, A. W. N.; Siti Fatimah, Siraj, Prof. Madya. Dr.; Mahathir, H. Mat (Institute of Electrical and Electronics Engineers (IEEE), 2011-09-20)
      The effect of load variations on the stability of the open-loop DC-DC boost converter is investigated in this paper. Mathematical model of boost converter is derived using state-space averaging technique and perturbation ...

    • Optimum transmit power for optical CDMA transmission systems considering nonlinear stimulated brillouin scattering (SBS) effects 

      Fuad, A. Hatim; Feras, N. Hasoon; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; Sahbudin, B. H. Shaari (Institute of Electrical and Electronics Engineers (IEEE), 2008-12-01)
      The optimum transmit power for an optical code division multiple access (OCDMA) system based on enhanced double weight (EDW) code is evaluated for various transmission distances considering the nonlinear stimulated Brillouin ...

    • Testing of contactors under voltage sag and non-sinusoidal voltage conditions 

      Surya Hardi, Amrin; Ismail, Daut, Prof. Dr.; Muhammad Irwanto, Misrun (Institute of Electrical and Electronics Engineers (IEEE), 2010-11-29)
      Sensitivity of electromagnetic contactors for voltage sags and non-sinusoidal voltage supply has been carried out by laboratory testing. Effects of sag characteristics such as; sag magnitude, sag duration and point on wave ...

    • K-factor due to implementing of DC unbalanced/balanced of a transformer 

      Syafruddin, Hasan; Ismail, Daut, Prof. Dr.; Soib, Taib, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2007-12-04)
      This paper presents the effects of harmonic distortion on loaded single phase two winding transformer.The impact on K-factor is studied by implementing DC unbalanced and balanced configurations. The measurements are done ...

    • Real-time system for facial emotion detection using GPSO algorithm 

      Bashir, Mohammed Ghandi; R., Nagarajan, Prof. Dr.; Hazry, Desa, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-10-03)
      Particle Swarm Optimization (PSO) algorithm has been widely recognized as an efficient algorithm with applicability is many areas. Recently, we proposed the Guided Particle Swarm Optimization (GPSO) algorithm, which is a ...

    • Nanowire conductance biosensor by spacer patterning lithography technique for DNA hybridization detection: Design and fabrication method 

      Uda, Hashim, Prof. Dr.; Shahrir, Salleh; Emi, Azri Shohini; Siti Fatimah, Abd Rahman (Institute of Electrical and Electronics Engineers (IEEE), 2008-11-04)
      The use of Silicon nanowires has allowed the introduction of many new signal transduction technologies in biosensors. The sensitivity and performance of biosensors is being improved by using doping process for their ...

    • Wireless sensor networks mapping and deployment in tropical precision farming 

      Azizi, Harun; Ali Yeon, Md Shakaff, Prof. Dr.; Ammar, Zakaria; Latifah Munirah, Kamarudin; Mahmad, Nor Jaafar; Ndzi, David L. (Institute of Electrical and Electronics Engineers (IEEE), 2011-09-20)
      For deployment of Wireless Sensor Network in precision farming to be successful, a study of the performance of wireless systems from a network coverage and link quality perspectives must be conducted to ensure a reliable, ...

    • New code structures based on coherent and incoherent sources for spectral amplitude coding-OCDMA systems 

      Hilal Adnan, Fadhil, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2009-04-03)
      A new code of optical code division multiple access (OCDMA) based on Spectral Amplitude Coding (SAC) is described and analyzed. The coding technique is called Random Diagonal "RD" code. One of the important properties of ...

    • The CCSRR influences towards circular microstrip antenna 

      A. A M., Ezanuddin; Fareq, A. Malek; Soh, Ping Jack (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-15)
      A circular profile microstrip antenna and its related structural dimensions meant for 5850-7075 MHz Malaysia HAPS operating band are investigated here. Appearing by three layers and having layer three surface copper re-shaped ...

    • Effective design of optical code-division multiple access network using random diagonal codes 

      Hilal Adnan, Fadhil, Dr.; Syed Alwee Aljunid, Syed Junid, Prof. Dr.; R. Badlishah, Ahmad, Assoc. Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2008-08-26)
      In this paper we study the use of a new code called Random Diagonal (RD) code for Spectral Amplitude Coding (SAC) optical Code Division Multiple Access (CDMA) networks, using Fiber Bragg-Grating (FBG), FBG consists of a ...

    • Fabrication and characterization of a-Si micro and nano-gap structure for electrochemical sensor 

      Th Sabar, Dhahi; Uda, Hashim, Prof. Dr.; N. M., Ahmed; Md Eaqub, Ali (American Institute of Physics, 2010-12-01)
      The development and application of micro gap for electrochemical sensors and biomolecule detection are reviewed in this article. The preparation methods for micro- and nano-gaps and their properties are discussed along ...

    • The impacts of stator materials on induction motor nameplate parameters for high performance 

      Ismail, Daut, Prof. Dr.; Mohd S Ezwan, Abdullah; Gomesh Nair, Shasidharan; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim (Institute of Electrical and Electronics Engineers (IEEE), 2010-12-13)
      Core materials and magnet wire sizes were analyzed in order to find out the impacts on nameplate for high performance motor. Stack length and back core iron depth of stator geometry design are the parameters involve in ...

    • The impacts of stator outside diameters on induction motor nameplates: Analysis by using a finite element 

      Ismail, Daut, Prof. Dr.; Mastika, Abdullah; Gomesh Nair, Shasidharan; Yanawati, Yahya; Nor Shafiqin, Shariffuddin; Pungut, Ibrahim (Institute of Electrical and Electronics Engineers (IEEE), 2010-12-13)
      Design stimulation by software is important in order to save money and time. This paper is using stimulation software, which is a finite element method, to analyze the stator outside diameter impact on rated current, horse ...

    • 125 KHz ubiquitous RFID tag signal detector system 

      Fazrul Faiz, Zakaria; Anuar, Mat Safar, Ir.; Soh, Ping Jack; Syed Alwee Aljunid, Syed Junid, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2007-11-25)
      This paper presents a development of 125 KHz ubiquitous RFID tag signal detector system that can be used as a door lock for home security. The RFID tag signal detector or also known as RFID reader consists of three elements ...