Student Conference on Research and Development
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Improvements in design of local fluorescent electronics ballasts in compliance with the related local and international standards
Student Conference on Research and Development - - Trang 274-277
The study is undertaken to improve the design of existing locally manufactured electronic ballasts. The study indicated that many of these commercial electronic ballasts do not have or have either partially or minimum compliance requirements to the related local and international standards, namely MS EEC 928, MS IEC 929 and EMC requirements as required by SIRIM Berhad. From the study made on the 1......
#Fluorescence #Electronic ballasts #Manufacturing #Electronic equipment testing #IEC standards #Electromagnetic compatibility #Surges #Reactive power #Temperature #Power system harmonics
Virtual environment navigation using an image-based approach
Student Conference on Research and Development - - Trang 364-367
This paper investigates and illustrates the potential of using panorama virtual reality to enhance Web-based library instruction. The project considers that panorama virtual reality (VR) could be a powerful tool when comparing a conventional tour and virtual tour. A VR tour as a whole can became a more useful medium that allows navigating, viewing, reading, hearing and remote access. This paper de......
#Virtual environment #Navigation #Virtual reality #Libraries #Rendering (computer graphics) #Layout #Visualization #Virtual prototyping #Auditory system #Application software
Application of numerical technique in tangent analysis of a discrete step response data
Student Conference on Research and Development - - Trang 19-22
Tangent analysis is the conventional method used to analyze an open-loop step response curve. It is done by drawing a tangent line at the steepest point of the step response curve. The process dynamics such as dead time and response rate can be obtained from the analysis. Later, this information is applied to the open-loop tuning rule for optimum PID calculation. With current developments in paper......
#Digital control #Three-term control #Sampling methods #Time factors #Numerical analysis #Tuning #Open loop systems #Chemical engineering #Mechanical engineering #Engineering drawings
Network performance analysis on bandwidth utilizations and protocol distributions
Student Conference on Research and Development - - Trang 407-409
Many network administrators or providers are hesitant or not ready to offer the users the information of current bandwidth utilization on their Internet connection or other connection. There are many justifiable and unjustifiable reasons for this. We believe in opening up the communication between the users and ourselves and also believe in honestly and accurately portraying the services we are re......
#Performance analysis #Bandwidth #Protocols #Delay #Local area networks #Bit rate #Wide area networks #Telecommunication traffic #Radio frequency #Research and development
Modelling and simulation of a single-phase AC-AC matrix converter using SPWM
Student Conference on Research and Development - - Trang 286-289
This paper presents work carried out in developing computer simulation models using the Power System Block Set (PSB) within the MATLab/Simulink (MLS) environment. Its powerful filter design tools, signal processing capabilities are used to illustrate the convenience of modelling and simulation. The SPMC as a direct frequency changer were used in this work with the output being synthesized using th......
#Matrix converters #Power system modeling #Mathematical model #Power system simulation #Computational modeling #Computer simulation #Multilevel systems #Filters #Process design #Signal design
Processing the signals from an optical fibre pH sensor by using an artificial neural network
Student Conference on Research and Development - - Trang 340-343
The optimisation of response range of an optical fibre pH sensor based on immobilized bromophenol blue (BPB) in silicone rubber membrane has been studied by using an artificial neural network (ANN). The absorbance spectra of the immobilized BPB were scanned out by using an optical fibre spectrophotometer at different pH values. The-absorbance data were used as an input data for the ANN training. A......
#Signal processing #Optical fibers #Optical fiber sensors #Artificial neural networks #Chemical sensors #Biomembranes #Rubber #Neurons #Chemical technology #Food technology
Utilising object oriented approach in a knowledge based system development for an engineering design
Student Conference on Research and Development - - Trang 460-463
The object oriented concept portrays the element of interest as objects. It defines the properties and behaviour associated with the objects. The object-oriented paradigm thus enables objects to be regarded as independent entities where control of the system can be obtained by direct communication between objects. This paper presents the application of object oriented principles to the development......
#Knowledge based systems #Design engineering #Knowledge engineering #Internet #Computer aided manufacturing #Maintenance engineering #Systems engineering and theory #Software prototyping #Prototypes #Data engineering
Simulation and analysis of power converter harmonics
Student Conference on Research and Development - - Trang 213-216
The applications of large power electronic converter results in generation of low (LF) and high (HF) frequencies harmonics in the power system. The adverse effects of harmonics are widespread. In this paper, harmonic analysis was carried out on 3-phase fully controlled thyristor bridge. Methods of harmonic reduction have been used. It has been found that, the 12-pulse method is suitable in reducti......
#Analytical models #Harmonic analysis #Power conversion harmonics #Power harmonic filters #Power system harmonics #Power system simulation #Power generation #Bridges #Power electronics #Hafnium
Online file storage system
Student Conference on Research and Development - - Trang 83-86
As computers become an increasing part of our lives at work, at home, and even while traveling, growth of the Internet has brought about a revolution in our daily lives with sophisticated online applications that provide us with tremendous ease of communication. The Internet offers a number of services ranging from mail servers and list servers to Web-based workgroup tools. With the increasing nee......
#Web server #Educational institutions #Web pages #Application software #Web and internet services #Information retrieval #Computer networks #Computer science #Information technology #Power engineering and energy
Channel management for WATM mobile satellite systems
Student Conference on Research and Development - - Trang 386-389
This paper presents a dynamic channel allocation scheme for wireless asynchronous transfer mode (WATM) satellite systems. Handoff schemes of WATM are utilized to deal with handoff issues in a WATM mobile satellite system. Here we investigate and simulate a dynamic channel allocation scheme for handoff in WATM mobile satellite networks, which improves the network resource utilization, by measuring ......
#Asynchronous transfer mode #Low earth orbit satellites #Routing #Channel allocation #Resource management #Artificial satellites #Personal communication networks #Satellite ground stations #Roaming #Systems engineering and theory
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