School of Mechatronic Engineering (Articles): Recent submissions
Now showing items 261-280 of 322
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Virtual deformation of soft tissue using bulk variables
(World Scientific and Engineering Academy and Society (WSEAS) Press, 2009)We present an alternative online simulation model for human tissue. Online simulation of human tissue deformation during surgical training or surgical assistance is becoming increasingly important within the medical ... -
Fast transient solution of a two-layered counter-flow microchannel heat sink
(Emerald Group Publishing Limited., 2009)Purpose: The purpose of this paper is to apply asymptotic waveform evaluation (AWE) to the transient analysis of a two-layered counter-flow microchannel heat sink. Design/methodology/approach: A two-layered counter-flow ... -
Multiple fan-beam optical tomography: Modelling techniques
(MDPI Publishing, 2009-11)This paper explains in detail the solution to the forward and inverse problem faced in this research. In the forward problem section, the projection geometry and the sensor modelling are discussed. The dimensions, distributions ... -
An investigation on visual and audiovisual stimulus based emotion recognition using EEG
(Inderscience Enterprises Ltd., 2009-01)In this paper, we investigate the possibility of using visual and audio visual stimulus for detecting the human emotion by measuring electroencephalogram (EEG). Visual and audiovisual stimulus based protocols is designed ... -
Three-axis fuzzy variable structure control with an application to micro satellite
(IEEE, 2009-12-10)This paper presents a hybrid form of three-axis control system with has both Variable Structure Control (VSC) and Fuzzy Logic Control (FLC). This proposed Fuzzy Variable Structure Control (FVSC) approach combines the power ... -
Optical tomography system using digital signal processor: Velocity profile measurement
(Inderscience Enterprises Limited, 2009-06)The DSP system was customised to control the data acquisition process of 16 x 16 optical sensors array, arranged in parallel beam projection. The data collected was used to reconstruct the cross sectional image of the ... -
Contrast enhancement for Ziehl-Neelsen tissue slide images using linear stretching and histogram equalization technique
(IEEE, 2009-12-16)Ziehl-Neelsen staining method is a common technique used to diagnose tuberculosis infection. Clinical samples such as sputum or tissue are stained using Ziehl- Neelsen procedure and analysed manually by microbiologist for ... -
Optical tomography system using microprocessor and ethernet
(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. ... -
Modeling orthogonal and rectilinear mixed-modality projection of optical tomography for solid-particles concentration measurement
(Elsevier B. V., 2010-06)In optical tomography, light attenuation/scattering methods have been used to determine average solids concentrations in gas-solids flows. Derived from the Lambert-Beer law, the Mie theory forms the theoretical basis for ... -
The front-end hardware design issue in ultrasonic tomography
(IEEE, 2010-07)This paper explains the front-end hardware design for ultrasonic tomography. The ultrasonic tomography system presented in this paper uses a noninvasive sensing technique with transmission-mode approach for investigating ... -
Mathematical modelling of gas bubbles and oil droplets in liquid media using optical linear path projection
(Elsevier Ltd., 2010-05-05)This paper describes mathematical modelling of oil droplets and gas bubbles in water. The light sources that are discussed are visible light radiation and infrared radiation. Gas bubbles or oil droplets less than 1 mm ... -
Classification of agarwood oil using an electronic nose
(MDPI Publishing, 2010-05-06)Presently, the quality assurance of agarwood oil is performed by sensory panels which has significant drawbacks in terms of objectivity and repeatability. In this paper, it is shown how an electronic nose (e-nose) may be ... -
Simulation of the two-phase liquid – gas flow through ultrasonic transceivers application in ultrasonic tomography
(International Frequency Sensor Association (IFSA), 2010-01-29)In this paper, ultrasonic transmission mode tomography was used to visualize the two phase liquid/gas flow in a pipe/vessel. The sensing element consists of 8, 16 and 32 units ultrasonic transceivers were used to cover ... -
Simulation of image fusion of dual modality (electrical capacitance and optical tomography) in solid/gas flow
(Springer Verlag, 2010-03-27)This paper presents a novel method of combining dual modality electrical capacitance and optical tomography for applications in monitoring and investigating solid/gas flow. The objective of this method is to obtain a good ... -
A survey of radiation dose to patients and operators during radiofrequency ablation using computed tomography
(University of MalayaDepartment of Biomedical Imaging (Radiology), 2010-01)Computed tomography (CT) fluoroscopy is able to give real time images to a physician undertaking minimally invasive procedures such as biopsies, percutaneous drainage, and radio frequency ablation (RFA). Both operators executing ... -
Investigation of facial artifacts on face biometrics using eigenface based single and multiple neural networks
(World Scientific and Engineering Academy and Society (WSEAS) Press, 2009)Biometrics has been an important issue pertaining to security in the last few decades. Departments or agencies entrusted with national security are increasingly installing surveillance cameras in strategic or critical areas ... -
PCB inspection for missing or misaligned components using background subtraction
(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 ... -
Homogeneous pin-through-hole component inspection using fringe tracking
(World Scientific and Engineering Academy and Society (WSEAS), 2008)Automated visual inspection (AVI) systems are playing important roles in ensuring manufacturing quality in the electronic industry especially in the assemblage of printed circuit boards (PCB). Most existing AVIs that are ... -
Asymmetric ratio and FCM based salient channel selection for human emotion detection using EEG
(World Scientific abd Engineering Academy and Scoiety (WSEAS), 2008)Electroencephalogram (EEG) is one of the most reliable physiological signals used for detecting the emotional states of human brain. We propose Asymmetric Ratio (AR) based channel selection for human emotion recognition ... -
EEG signal classification using Particle Swarm Optimization (PSO) neural network for brain machine interfaces
(Association for the Advancement of Modelling & Simulation Techniques in Enterprises (A.M.S.E.), 2008)The brain uses the neuromuscular channels to communicate and control its external environment, however many disorders can disrupt these channels. Amyotrophic lateral sclerosis is one such disorder which impairs the neural ...