Browsing School of Mechatronic Engineering (Articles) by Title

Now showing items 226-245 of 322

    • Optical tomography system using microprocessor and ethernet 

      Ruzairi, Abdul Rahim; Goh, Chiew Loon; Chan, Kok San; Pang, Jon Fea; Leong, Lai Chan; Mohd Hafiz, Fazalul Rahiman (Emerald Group Publishing Limited, 2010-01-01)
      Purpose: Owing to the high cost of data acquisition (DAQ) card in the market, the purpose of this paper is to develop a high speed, low-cost microprocessor and ethernet controller-based DAQ in optical tomography system. ...

    • Optical tomography: A review on sensor array, projection arrangement and image reconstruction algorithm 

      Siti Zarina, Mohd. Muji; Ruzairi, Abdul Rahim; Mohd Hafiz, Fazalul Rahiman; Shafishuhaza, Sahlan; Mohd Fadzli, Abdul Shaib; Muhammad, Jaysuman; Elmy Johana, Mohamad (Kyushu Tokai University, 2011-07)
      This paper reviews previous research on sensor arrays, projection arrangements and image reconstruction algorithms of optical tomography for industrial processes. These include the review of sensor selection and projection ...

    • Optical tomography: Image improvement using mixed projection of parallel and fan beam modes 

      Siti Zarina, Mohd Muji; Ruzairi, Abdul Rahim, Prof. Dr.; Mohd Hafiz, Fazalul Rahiman, Dr.; Zarina, Tukiran; Nor Muzakkir, Nor Ayob; Elmy Johana, Mohamad, Dr.; Muhammad Jaysuman, Pusppanathan (Elsevier Ltd, 2013-07)
      Mixed parallel and fan beam projection is a technique used to increase the quality images. This research focuses on enhancing the image quality in optical tomography. Image quality can be defined by measuring the Peak ...

    • Optical tomography: Velocity profile measurement using orthogonal and rectilinear arrangements 

      Ruzairi, Abdul Rahim; Yusri, Mohd Yunosa; Mohd Hafiz Fazalul, Rahiman; Siti Zarina, Mohd Muji; Chiam, Kok Thiam; Herlina, Abdul Rahim (Elsevier Ltd., 2012-03)
      In tomography applications, flow velocity is an important flow characteristic for analysis. Excessively high particle velocity will cause high energy consumption, severe pipeline wear and particle degradation. This paper ...

    • Optimal coefficient of friction onartificial knee joint contact surfaces 

      Mohd Hafis, Sulaiman; Nur Farahana, Ramli; Mohd Ridzuan, Mohd Jamir; Nur Adlina, Mohd Takhiudin (Trans Tech Publications, 2013)
      Wear generated by the presence of frictiononknee joint contact surfaces can cause debris, which may lead to failure of the artificial knee joint. In this study, the effects of friction coefficients occur on the knee joint ...

    • Optimal selection of long time acoustic features using GA for the assessment of vocal fold disorders 

      Sindhu, Ravindran; Neoh, Siew Chin, Dr.; Muthusamy, Hariharan, Dr. (Trans Tech Publications, 2013)
      In recent times, vocal fold problems have been increasing dramatically due to unhealthy social habits and voice abuse. Non-invasive methods like acoustic analysis of voice signals can be used to investigate such problems. ...

    • Optimising PCM thermal storage systems for maximum energy storage effectiveness 

      Nasrul Amri, Mohd Amin; Belusko, Martin; Bruno, Frank; Liu, Ming (Elsevier Ltd., 2012-09)
      A new performance parameter for PCM thermal storage systems, the energy storage effectiveness, is defined. This parameter can be used to optimise the design of any PCM thermal storage system to maximise the use of the ...

    • Optimization of 67% powder loading co-30cr-6Mo μMIM part by Taguchi method 

      Azizah, Wahi; Norhamidi, Muhamad, Prof. Dr.; Hafizawati, Zakaria (Penerbit UTM Press, 2014)
      This research studies the effect of injection moulding parameters on the density of green body of Cobalt-30Chromium-6Molybdenum (Co-30Cr-6Mo) for powder injection moulding (PIM) feedstock. In this paper 20 micron Co-Cr-Mo ...

    • Optimization of circular side door beam for crashworthiness analysis 

      Raja Sharmi, Raja Husin; Nur Liyana, Tajul Lile; Sazali, Yaacob, Prof. Dr. (Indonesian Society for Knowledge and Human Development (INSIGHT), 2012)
      Structural optimization related to crashworthiness and energy absorption capability is particularly importance to the automotive industry. The optimization involves highly nonlinear computational analysis and design with ...

    • Orientation-based pairwise coarse registration with markerless terrestrial laser scans 

      Siti Nurhashima, Mohd Isa; Shazmin Aniza, Abdul Shukor; I., Maarof; Zainor Ridzuan, Yahya; Norasmadi, Abdul Rahim; Ammar, Zakaria; A. H., Abdullah; R., Wong (Copernicus Publications, 2019)
      In this paper, pairwise coarse registration is presented using real world point cloud data obtained by terrestrial laser scanner and without information on reference marker on the scene. The challenge in the data is because ...

    • Orthogonal least squares method and its application to nonlinear modeling of automotive engine fuelled with palm oil methyl esters 

      Azuwir, Mohd Nor; Mohd Zaki, Ab. Muin, Prof. Dr.; Abdul Hamid, Adom, Prof. Dr. (Praise Worthy Prize S.r.l., 2013)
      In this paper, nonlinear mathematical models for an automotive engine fuelled with palm biodiesel (Palm Oil Methyl Ester) are developed. Assuming a discrete time form for the system model, a polynomial Nonlinear Autoregressive ...

    • Paraffinic mineral oil lubrication for cold forward extrusion: Effect of lubricant quantity and friction 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Nur Farahana, Ramli; Syahrullail, Samion (Elsevier Ltd., 2013)
      In this paper, Finite Element (FE) and experimental analyses have been developed on the deformation of aluminium billet over a tool. Effect of friction resulted from the use of additive-free ISO460-compliant paraffinic ...

    • Pathological infant cry analysis using wavelet packet transform and probabilistic neural network 

      Muthusamy, Hariharan; Sazali, Yaacob, Prof. Dr.; Saidatul Ardeenaawatie, Awang (Elsevier Ltd., 2011-11)
      A new approach has been presented based on the wavelet packet transform and probabilistic neural network (PNN) for the analysis of infant cry signals. Feature extraction and development of classification algorithms play ...

    • Patients tremble analysis under different camera placement in critical care 

      Muhammad Naufal, Mansor; Sazali, Yaacob, Prof. Dr.; R. Nagarajan, Prof. Dr.; Muthusamy, Hariharan, Dr. (Science Academy, 2011-03)
      This paper presents an integrated system for detecting facial changes of patient in a hospital in Intensive Care Unit (ICU). In this research we have considered the facial changes most widely represented by eyes and mouth ...

    • PCB inspection for missing or misaligned components using background subtraction 

      Sundaraj, Kenneth (World Scientific and Engineering Academy and Society (WSEAS) Press, 2009)
      Automated visual inspection (AVI) is becoming an integral part of modern surface mount technology (SMT) assembly process. This high technology assembly, produces printed circuit boards (PCB) with tiny and delicate electronic ...

    • Pearson’s Correlation Coefficient Analysis of non-invasive Jaundice Detection based on Colour Card Technique 

      Asyraf Hakimi, Abu Bakar; Mohd Najmuddin, Mohd Hassan; Ammar, Zakaria; Ahmad Ashraf, Abdul Halim (IOP Publishing, 2019)
      Jaundice is describes as yellow discoloration of the skin and other tissues of a newborn infant. It happens when the bilirubin pigment rises up to 5 mg/dL or 85 μmol/L due the organs just started to developed. 75% of ...

    • Performance and emission characteristics of diesel engine running on blended palm oil 

      M. Iqbal, A.; Zainal Alimuddin, Zainal Alauddin, Dr.; Musalmah, Mazlan, Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohammad Shahril, Salim (Trans Tech Publications, 2013)
      Rapid increasing of industrialization and motorization has led arising of petroleum and energy demand. This pursue a new energy blends to cater the depletion of fossil fuel and the environmental degradation condition. ...

    • Performance comparison of the artificial neural network and the k-nearest nieghbor classifiers in classroom speech intelligibility prediction application 

      Mohd Ridhwan Tamjis; M. Naufal Mansor; Paulraj, Murugesa Pandiyan, Assoc. Prof.; A. Nazri Abdullah; Raymond B. W. Heng; Sazali Yaacob, Prof. Dr. (Science Academy, 2011-03)
      Classroom speech intelligibility has become one of the major concerns in education nowadays. In any classrooms and educational facilities, an optimal speech intelligibility level is required to ensure that the listeners ...

    • Performance of thermoelectric cooling system: effect of aluminium heat sink and heat dissipation 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Ahmad Firdaus, Ahmad Zaidi; Mohammad Shahril, Salim; Nur Farahana, Ramli; Cheong, Chee Kin (Trans Tech Publications, 2014)
      This paper presents theoretical and experimental research works on the effect of aluminium heat sink and heat dissipation in a portable thermoelectric (TE) cooling system. In this study, three units of TE modules were ...

    • Personalized face emotion classification using optimized data of three features 

      Muthukaruppan, Karthigayan; Ramachandran, Nagarajan; Mohd Rizon, Mohamed Juhari; Sazali, Yaacob (Institute of Electrical and Electronics Engineering (IEEE), 2007)
      In this paper, lip and eye features are applied to classify the human emotion through a set of irregular and regular ellipse fitting equations using Genetic algorithm (GA). South East Asian face is considered in this study. ...