Student Conference on Research and Development
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Các bài báo tiêu biểu
Worst month rain statistics measurement in Malaysia
- Trang 12-14
Excess attenuation due to rainfall is one of the most important constraints to
the performance of microwave radio links. In temperate climates at frequencies
above 10 GHz, rainfall rates have significant effects on the performance of
microwave radio links. Therefore, the behavior of radio communication links
varies seasonally over a year. This paper presents on the results obtained from
the analys...
#Rain #Statistics #Probability #Statistical distributions #Radio link #Attenuation measurement #Calendars #Statistical analysis #Time measurement #Frequency
Simulation and analysis of power converter harmonics
- 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
Prediction of water quality index (WQI) based on artificial neural network (ANN)
- Trang 157-161
This paper investigates the effectiveness of artificial neural network models
for predicting the water quality index for rivers in Malaysia. The network was
trained with reference to seven major parameters for the determination of the
water pollutant index, water quality index and water quality class, for
Malaysian rivers in Pahang and Selangor. The data collected comprises of data
for the previou...
#Artificial neural networks #Water pollution #Rivers #US Department of Energy #Equations #Radial basis function networks #Neural networks #Predictive models #Computer networks #Guidelines
Thiết kế một chiếc đồng hồ điện tử Dịch bởi AI
- Trang 290-292
Bài báo này trình bày thiết kế một chiếc đồng hồ điện tử sử dụng màn hình bảy
đoạn. Nó bao gồm ba mô-đun chính: (1) vi điều khiển; (2) PLD (thiết kế logic có
thể lập trình); và (3) bảy đoạn. Phần mềm đã được viết cho vi điều khiển để tạo
ra một tín hiệu xung nhịp 1 Hz. Phần mềm MAX+plus-II của công ty Altera đã được
sử dụng để thiết kế mạch logic cho đồng hồ. Tín hiệu xung nhịp từ vi điều khiển
sẽ...
#Watches #Clocks #Logic circuits #Displays #Signal generators #Microcontrollers #Design engineering #Batteries #Brightness #Stress
Virtual environment navigation using an image-based approach
- 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
Study of fuzzy logic power system stabilizer
- Trang 335-339
This paper presents a study of fuzzy logic power system stabilizer (PSS) for
stability enhancement of a single machine power system. In order to accomplish a
stability enhancement., speed deviation (/spl Delta//spl omega/) and
acceleration (/spl Delta//spl omega/~) of the rotor synchronous generator were
taken as the input to the fuzzy logic controller. These variables take
significant effects on ...
#Fuzzy logic #Power systems #Power system stability #Power system simulation #Power system faults #Acceleration #Rotors #Synchronous generators #Mechanical variables control #Damping
Network performance analysis on bandwidth utilizations and protocol distributions
- 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
Available transfer capability assessment of the Malaysian power system
- Trang 184-187
In the deregulated power system, it is important to accurately and rapidly
quantify the available transfer capability (ATC) of the transmission system.
This paper presents a case study of the ATC assessment on the Malaysian power
system. The ATC is evaluated using both the proposed quadratic sensitivity
method and the AC power flow method. The ATC are evaluated by considering both
the point-to-poi...
#Power systems #Load flow #Voltage #Power system security #Power system stability #Modeling #Power system simulation #Consumer electronics #Power engineering and energy #Systems engineering and theory
Harmonics and reactive compensation using rectifier-boost technique
- Trang 217-219
This paper concern with the study of a single-phase rectifier circuit and its
effects on the AC supply system. System compensation through the used of boost
technique in wave shaping the supply current is proposed. Two control loops
namely current control loop (CCL) and voltage control loop (VCL) employing TWM
technique and fuzzy logic system respectively are used. This compensation
strategy is an...
#Voltage control #Rectifiers #Circuits #Current supplies #Control systems #Current control #Fuzzy logic #MATLAB #Analytical models #Packaging
Radio resource and mobility management in GPRS network
- Trang 132-135
The General Packet Radio Service (GPRS) is a complex data network which upgrades
current second generation GSM networks, offering true high-speed Internet (IP)
and X.25 network connectivity over existing GSM cellular networks. The key
benefits of GPRS are better use of radio and network resources and completely
transparent IP support. The increasing population of mobile users leads to
congestion p...
#Mobile radio mobility management #Ground penetrating radar #Radio spectrum management #Resource management #GSM #Packet radio networks #IP networks #Web and internet services #Land mobile radio cellular systems #Delay