Now showing items 1-20 of 250

    • Rice yield classification using Backpropagation Network 

      Puteh, Saad; Nor Khairah, Jamaludin; Siti Sakira, Kamrudin; Aryati, Bakri; Nursalasawati, Rusli (Penerbit Universiti Utara MalaysiaFakulti Teknologi Maklumat, 2004)
      Among factors that affect rice yield area are diseases, pests and weeds. It is intractable to model the correlation between plant diseases, pests and weeds on the amount of rice yield statistically and mathematically. In ...
    • A microcontroller-based taste sensing system for the verification of Eurycoma longifolia 

      Rahman, A. S A; Yap, M. M S; Ali Yeon, Md Shakaff; Mohd Noor, Ahmad; Dahari, Z.; Zhari, Ismail; Muhammad Suzuri, Hitam (Elsevier, 2004-06)
      With the proliferation of numerous herbal remedies on the market, the ability to verify the actual presence of the active herbal ingredient in a product would be very useful. In this paper, a microcontroller-based electronic ...
    • Object detection using circular hough transform 

      Mohamed Rizon; Haniza, Yazid; Puteh, Saad; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Sugisaka, Masanori; Sazali, Yaacob, Prof. Dr.; M. Rozailan, Mamat; Karthigayan, M. (Science Publications, 2005)
      In this study we propose a new system to detect the object from an input image. The proposed system first uses the separability filter proposed by Fukui and Yamaguchi (Trans. IEICE Japan J80-D-II. 8, 2170-2177, 1997) to ...
    • Small antenna efficiency by the reverberation chamber and the Wheeler Cap methods 

      Azremi, Abdullah Al Hadi; Ghafouri Shiraz, H.; Hall, Peter S. (Institute of Electrical and Electronics Engineering (IEEE), 2005)
      Two methods of determining an antenna's efficiency are compared. Each of these methods was used to measure the efficiency of three different antennas (two monopole antennas with attenuator and surface mount resistor, and ...
    • A comparative study of small antenna efficiency measurements 

      Azremi, Abdullah Al Hadi; Shiraz, H.Ghafouri; Hall, Peter S. (Institute of Electrical and Electronics Engineering (IEEE), 2005)
      Three methods of determining an antenna's efficiency are compared to measure the efficiency of three different antennas (two monopole antennas with attenuator and surface mount resistor, and modified folded monopole patch ...
    • Evaluation of transformer magnetizing core loss 

      Ahmed, M.A.H.; Soib, Taib; Ismail, Daut; Uthman, S. (Asian Network for Scientific Information, 2006)
      Loss in transformer core is the electrical power lost in terms of heat within the core of transformer, when core is subjected to AC magnetizing force. It is composed of several types of losses such as Hysterics loss, eddy ...
    • Object detection using geometric invariant moment 

      Mohamed Rizon; Haniza, Yazid; Puteh, Saad; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Mohd Rozailan, Mamat; Sazali, Yaacob, Prof. Dr.; Hazri, Desa, Dr.; Karthigayan, M. (Science Publications, 2006)
      Geometric moment invariant produces a set of feature vectors that are invariant under shifting, scaling and rotation. The technique is widely used to extract the global features for pattern recognition due to its ...
    • Improving bit error rate of OCDMA systems using and subtraction technique 

      Syed Alwee Aljunid, Syed Junid; Shariffah Zarihan, Syed Zaharim Helmi; Anuar, Mat Safar; Junita, Mohd Nordin; Norsuhaida, Ahmad; Samad, M.D.A.; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      A new detection scheme, namely AND subtraction technique is proposed and presented in this paper. The theory is being elaborated and experimental results have been done by comparing Double-Weight (DW) code against the ...
    • Optical Spectrum CDMA: a new code construction for Double Weight Code Family 

      Mohammed, A; Saad, N.M; Syed Alwee Aljunid, Syed Junid; Anuar, Mat Safar; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      This paper handles the Double Weight (DW) Code family, one of the proposed codes used in Spectral-Amplitude-Coding Optical Code Division Multiple Access (OCDMA). The DW code family is constructed using a matrix technique ...
    • Face recognition using eigenfaces and neural networks 

      Mohamed Rizon; Muhammad Firdaus, Hashim; Puteh, Saad; Sazali, Yaacob, Prof. Dr.; Mohd Rozailan, Mamat; Ali Yeon, Md Shakaff, Prof. Dr.; Abdul Rahman, Saad; Hazri, Desa, Dr.; Karthigayan, M. (Science Publications, 2006)
      In this study, we develop a computational model to identify the face of an unknown person’s by applying eigenfaces. The eigenfaces has been applied to extract the basic face of the human face images. The eigenfaces is ...
    • The potentials of OCDM technique for local area network 

      Syed Alwee Aljunid, Syed Junid; Dayang Khadijah, Hamzah; Shariffah Zarihan, Syed Zaharim Helmi; Anuar, Mat Safar; Azremi, Abdullah Al Hadi; Mohamad Khazani, Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      Evolution of the optical fiber systems is currently seeing the general acceptance of wavelength division multiplexing (WDM) as the best mechanisms in increasing the transmission capacity of fiber optics. However, there are ...
    • A MIMO LMS adaptive equalization approach in simulated radar emission 

      Junita, Mohd Nordin; Anuar, Mat Safar; Azremi, Abdullah Al Hadi; Norshaida, Ahmad; Shariffah Zarihan, Syed Zaharim Helmi; Bukhairi, M.N (Institute of Electrical and Electronics Engineering (IEEE), 2006)
      MIMO technology has attracted a lot of attention in the area of wireless communications such as radar applications, in term of increasing the spectral efficiency. This research paper will present the model of Simulated ...
    • An investigation of Rayleigh distribution in reverberation chamber 

      Azremi, Abdullah Al Hadi (Institute of Electrical and Electronics Engineering (IEEE), 2006-09-12)
      Amplitude fluctuations in signals received over mobile radio channels are typically modeled by a Rayleigh distribution. The field statistics in the volume of the enclosure are shown to correspond to the Rayleigh statistics ...
    • Correlation studies between electronic nose response and headspace volatiles of Eurycoma longifolia extracts 

      Shafiqul Islam, A.K.M.; Zhari, Ismail; Bahruddin, Saad; Abdul Rahman, Othman; M. Nizam, Ahmad; Ali Yeon, Md Shakaff (Elsevier B.V., 2006-12)
      Most herbs have their own characteristic smell due to the presence of volatile compounds. Traditionally, volatiles are analyzed by using sophisticated and expensive gas chromatography (GC) in tandem with a selective mass ...
    • Improved booth encoding for reduced area multiplier 

      Hussin, R.; Ali Yeon, Md Shakaff; Idris, N.; Ismail, R.C.; Kamarudin, A. (Institute of Electrical and Electronics Engineering (IEEE), 2006-12)
      In designing high density circuit, size is a major concern in design. This paper presents a simple modification to the Booth Multiplier that can effectively reduce the area with an accepted scarified in speed. A conventional ...
    • Generalization performance analysis between fuzzy ARTMAP and Gaussian ARTMAP neural network 

      Shahrul Nizam, Yaakob; Puteh, Saad (Universiti Malaya, 2007)
      This paper examines the generalization characteristic of Gaussian ARTMAP (GAM) neural network in classification tasks. GAM performance for classification during training and testing is evaluated using the k-folds cross ...
    • A BI-RADS based expert systems for the diagnoses of breast diseases 

      Umi Kalthum, Ngah; Shalihatun Azlin, Aziz; Mohd Ezane, Aziz; Mazeda, Murad; Nik Munirah, Nik Mahdi; Ali Yeon, Md Shakaff; Nor Ashidi, Mat Isa; Mohd Yusoff, Mashor; Mohd. Rizal, Arshad (Science Publications, 2007)
      We proposed an expert system based on the interpretation of mammographic and ultrasound images that may be used by expert and non-expert doctors in the interpretation and classifying of patient cases. The expert system ...
    • Performance analysis of optical zero cross correlation in OCDMA system 

      Anuar, Mat Safar; Syed Alwee Aljunid, Syed Junid; R. Badlishah, Ahmad; Saad, N.M.; Andonovic, I. (Asian Network for Scientific Information, 2007)
      We propose a new code structure for Spectral-Amplitude Coding Optical Code Division Multiple Access (OCDMA) systems with zero cross-correlation and theoretically demonstrate the performance of this code by using a direct ...
    • New code structure for spectral amplitude coding in OCDMA system 

      Hasoon, Feras N.; Syed Alwee Aljunid, Syed Junid; Mohamad Khazani, Abdullah; Sahbudin, Shaari (The Institute of Electronics, Information and Communication Engineers, 2007)
      A new code structure for spectral amplitude coding optical code division multiple access system, based on Double Weight (DW) code families is proposed. The DW code has a, fixed weight of two. Modified Double Weight (MDW) ...
    • Performance of OCDMA systems using a complementary subtraction technique 

      Hasoon, Feras N.; Mohamad Khazani, Abdullah; Syed Alwee Aljunid, Syed Junid; Sahbudin, Shaari (Optical Society of America, 2007)
      What we believe to be a new code structure to reduce the multiple access interference in a spectral amplitude coding optical code-division multiple access system based on double-weight code families is proposed. Enhanced ...