Worst month rain statistics measurement in Malaysia - Trang 12-14
M. Singh, S.I.S. Hassan, M. Ansor
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... hiện toàn bộ
#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
S.A. Talib, S.M. Bashi, N.F. Mailah
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... hiện toàn bộ
#Analytical models #Harmonic analysis #Power conversion harmonics #Power harmonic filters #Power system harmonics #Power system simulation #Power generation #Bridges #Power electronics #Hafnium
Predicting transmittance, absorptions and reflectance characteristics for the design of transparent dome passive daylight collector - Trang 208-212
F. Sulaiman, A. Ahmad, A.Z. Ahmed
Daylighting systems are a particular type of solar collector which may be used
to provide illumination for the interior of a building by directing daylight
into the building. Daylighting and thermal loads are very important design
issues for passive daylight collector design. A mathematical model has been
developed to predict the visible solar transmittance, absorptance and
reflectance of a transp... hiện toàn bộ
#Absorption #Reflectivity #Daylighting #Buildings #Mathematical model #Geometrical optics #Lighting #Thermal loading #Shape #Solar heating
A new structure for subband adaptive filtering - Trang 301-304
T.S. Rathore, T. Pawar
A subband adaptive filter structure (SAFS) has been proposed by Petraglia, Alves
and Diniz (PAD). For high-order adaptive filters, it requires M/3 times (M=the
number of subbands) less computations than the full band LMS algorithm. We
present a modified algorithm for this SAFS in which the optimum step sizes are
automatically determined instead of trial and error. The performance of the
modified a... hiện toàn bộ
#Adaptive filters #Filter bank #Bandwidth #Research and development #Atherosclerosis #Filtering #Collision mitigation #Tin #Sampling methods #Signal processing
Image processing application in seismic reflection to evaluate geohazard region - Trang 378-381
H.M.A. Al-Mattarneh, H.A. Hamid, K. Kamaruddin, S.K. Shariah, M.I.A. Shariah
GeoJava is GUI (graphical user interface) software that is powerful, yet very
simple to use, providing the means to filter color images in RGB
(red-green-blue) color space and YUV color space, to produce high quality
filtered images. The YUV color space model has been proved to filter images
smoothly without losing any data, only enhancing image structure. Different
images were used, and satisfact... hiện toàn bộ
#Image processing #Reflection #Filters #Graphical user interfaces #Application software #Software quality #Color #Stacking #Geometry #Stress
Radio resource and mobility management in GPRS network - Trang 132-135
M. Krishnan, M. Ismail, K. Annuar
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... hiện toàn bộ
#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
Active anycast method for server load balancing - Trang 105-108
H. Hashim, A. Manan
In a network where geographically dispersed replicated servers offer the same
service to a large number of clients, requests tend to concentrate at only a few
of these servers, causing congestion in the network around them. A server load
balancing method based on the active anycast service has been proposed to
alleviate the problem. In this method, an anycast address is used to represent
the group... hiện toàn bộ
#Load management #Network servers #Web server #Educational institutions #Unicast #Web and internet services #Degradation #Availability #Delay #Uniform resource locators
Energy storage system to improve power quality and system reliability - Trang 8-11
D. Sutanto
This paper embodies work at the Hong Kong Polytechnic University on the
application of energy storage in general and BESS in particular to improve power
quality and system reliability. This paper discusses the hardware configuration
and the control strategy being used to implement the above objectives when a
battery energy storage system is connected to the grid. The proposed three-phase
multi-pur... hiện toàn bộ
#Energy storage #Power quality #Power system reliability #Power systems #Uncertainty #Electricity supply industry #Demand forecasting #Power generation #Economic forecasting #Control systems
Application of multi-agents for the development of university timetabling using JATLite - Trang 521-522
Abd Manan Ahmad, Chew Yee Chian, F. Mohamad
Agents have been touted as a very promising technology that have inspired many
researchers around the world to develop prototype systems that seem to change
the way software works. With major organizations involved in projects that
utilize agents as solutions, it is believed that agents may have the potential
to be part of everyday life in the future. This paper briefly discusses the
implementatio... hiện toàn bộ
#Collaboration #Application software #Scheduling #Research and development #Design engineering #Computer science #Turing machines #Electronic mail #Software prototyping #Humans
Rô-bốt ảo: ảo thành hiện thực Dịch bởi AI - Trang 509-512
N. Mohamad, S.A.M. Yusof, R.C. Mat
Một trong những lợi ích mà giáo dục thu được từ thực tế ảo (VR) là khả năng hình
dung, mô phỏng và tương tác với các đối tượng ảo. Khả năng này cho phép sinh
viên có một buổi thực hành thử và sai trước khi thực hành trên các đối tượng
thực tế. Bài báo xem xét ý tưởng về một rô-bốt ảo hỗ trợ sinh viên trong việc
học tập. Thay vì nghiên cứu một rô-bốt vật lý trong lớp, sinh viên có thể nghiên
cứu mộ... hiện toàn bộ
#Virtual reality #Educational robots #Robot sensing systems #Service robots #Human robot interaction #Visualization #Educational technology #Education #Navigation #Cognitive robotics