Student Conference on Research and Development
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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...... hiện toàn bộ
#Knowledge based systems #Design engineering #Knowledge engineering #Internet #Computer aided manufacturing #Maintenance engineering #Systems engineering and theory #Software prototyping #Prototypes #Data engineering
Simulation of stable-adaptive control of robot arm using self-organizing neural network
Student Conference on Research and Development - - Trang 162-164
In this paper, a simulation of neural network controller for a three links robot arm is presented. The network is based on modified Kohonen's self-organizing map. In the proposed model, recurrent network and modified SOM network are interconnected.
#Robot control #Neural networks #Robot kinematics #Neurons #Computational modeling #Control systems #Recurrent neural networks #Nonlinear systems #Nonlinear control systems #Neurofeedback
Electromagnetic simulation of the effects of dielectric and metal thicknesses on the performance of multilayer MMIC lowpass filter
Student Conference on Research and Development - - Trang 418-421
The authors report on the effects of dielectric and metal thicknesses on the performance of a multilayer monolithic microwave integrated circuit (MMIC) lowpass filter. An electromagnetic simulator, Sonnet, is used to characterize and predict the effect of both factors on the filter response. Results of this simulation show that the filter operates with optimum performance when the metal and polyim...... hiện toàn bộ
#Circuit simulation #Nonhomogeneous media #Polyimides #MMICs #Microwave filters #Predictive models #Dielectric substrates #Dielectric losses #Frequency #Low pass filters
Tổng quan về hạ tầng mạng di động 3G Dịch bởi AI
Student Conference on Research and Development - - Trang 228-232
Sự chuyển đổi từ hệ thống di động thế hệ thứ hai (2G) sang thế hệ thứ ba (3G) (ví dụ: từ GSM sang UMTS) đang diễn ra tại Châu Âu và khu vực Châu Á - Thái Bình Dương. Các nhà điều hành 3G đang triển khai cơ sở hạ tầng mới để cung cấp dịch vụ Internet di động cho người dùng cuối. Ericsson cam kết thực hiện chuyển đổi này một cách thuận lợi nhất có thể cho các nhà điều hành và người dùng cuối. Bài bá...... hiện toàn bộ
#3G mobile communication #Network servers #GSM #Web server #Ground penetrating radar #Asynchronous transfer mode #Multiaccess communication #Control systems #IP networks #Streaming media
A comparison of microwave propagation models and evaporation duct height estimation techniques with actual near water atmospheric and radio data taken in North Queensland, Australia in May 2001
Student Conference on Research and Development - - Trang 120-123
For a number of years, RSRG, together with DSTO and JCU, has been taking measurements of radio propagation inside the evaporation duct using large arrays together with near ocean measurements of atmospheric refractivity. This paper presents results from such experiments carried out in May 2001. The authors collected a vertical profile of received signal strength from a transmitter 18 km away, prop...... hiện toàn bộ
#Microwave theory and techniques #Microwave propagation #Atmospheric modeling #Ducts #Australia #Atmospheric measurements #Sea measurements #Electromagnetic propagation #Oceans #Equations
Bộ điều khiển tốc độ nhị phân cho động cơ không đồng bộ ba pha Dịch bởi AI
Student Conference on Research and Development - - Trang 200-203
Động cơ không đồng bộ ba pha là loại máy phổ biến và được sử dụng rộng rãi trong ngành công nghiệp. Một động cơ không đồng bộ về cơ bản là động cơ có tốc độ không đổi, tuy nhiên trong nhiều ứng dụng, cần thiết phải có nhiều tốc độ hoặc một dải tốc độ có thể điều chỉnh liên tục. Mục tiêu của dự án này là áp dụng một phương pháp mới gọi là kỹ thuật nhị phân để điều khiển tốc độ của động cơ không đồn...... hiện toàn bộ
#Induction motors #Induction generators #Pulse width modulation inverters #AC motors #Synchronous motors #Voltage control #Microcontrollers #Harmonic distortion #Space vector pulse width modulation #Pulse modulation
Performance of TCP on Mobile IP network during handoffs
Student Conference on Research and Development - - Trang 390-393
Mobile IP solves the primary problem of routing IP packets to mobile nodes. However due to the host motion, some segments may be dropped or lost during handoff. We analyze the effects of the retransmission timeout (RTO) on the TCP performance and propose a new timeout algorithm to reduce long pauses in communication. The new timeout algorithm, fixed RTO (FxRTO) has been written at the transport la...... hiện toàn bộ
#TCPIP #IP networks #Jacobian matrices #Home automation #Routing #Delay estimation #Performance analysis #Algorithm design and analysis #Mobile communication #Transport protocols
Designing mobile applications for next generation networks
Student Conference on Research and Development - - Trang 113-115
Excellent cellular bandwidth, instant access and fast response times are finally challenging the world of the fixed Internet. The future world of cellular communications offers space for applications on mobile phones and PDAs. Cyberlab Singapore is approaching possible applications for future cellular networks by designing for particular cultural groups and environments. An example is given on wor...... hiện toàn bộ
#Next generation networking #Bandwidth #Delay #Internet #Mobile communication #Mobile handsets #Personal digital assistants #Land mobile radio cellular systems #Cultural differences #Global communication
Simulation of power system and machines of an industrial plant using the MATLAB/Simulink Power System Blockset (PSB)
Student Conference on Research and Development - - Trang 293-296
This paper presents a study of the approaches taken to model and simulate power systems of an industrial plant. Even the best-designed electric systems occasionally experience short-circuits resulting in abnormally high currents. To predict the behavior of these short circuits, system models are developed and simulated prior to commissioning work in the plant. Mathematical modeling of each compone...... hiện toàn bộ
#Power system simulation #Industrial power systems #Industrial plants #MATLAB #Power system modeling #Mathematical model #Power system faults #Power system analysis computing #Circuit simulation #Predictive models
Detection of migraine in EEG by joint time-frequency representation
Student Conference on Research and Development - - Trang 494-497
Discusses the use of a common joint time-frequency representation, the spectogram, in detection of migraine. Spectogram are computed from electroencephalogram (EEG) obtained by measuring electric potentials on the scalp. Migraine patients often have symptoms of visual and auditory dysfunction, e.g. photophobia and phonophobia. Psychophysical discomfort thresholds to light and sound stimuli are als...... hiện toàn bộ
#Electroencephalography #Time frequency analysis #Electric variables measurement #Electric potential #Scalp #Psychology #Lighting control #Signal analysis #Acoustic scattering #Light scattering
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