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ISCIT 2005 - International Symposium on Communications and Information Technologies 2005

作者： Chengdongyi, Hedingrun Liuxiaoyun College of Automation Engineering University of Electronic Science and Technology of China Chengdu Sichuan China

ISBN: (纸本)0780395387

Power use is one of the most important factors for wearable computer. This paper first imposes Ant algorithms for power management system of wearable computer, which is able to do developing control power use and dynamic attempter loads;then improves the efficiency of power use and prolongs working hours of wearable system. The result shows that it is viable to improve on traditional power management system of wearable compute. © 2005 IEEE.

关键词： Wearable computers

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Genetic links of magmatic deposits in the Emeishan large igneous province with the dynamics of a mantle plume

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Kuangwu Yanshi 2005年第4期25卷 35-44页

作者： Song, Xie-Yan Zhang, Cheng-Jiang Hu, Rui-Zhong Zhong, Hong Zhou, Mei-Fu Ma, Run-Ze Li, You-Guo Key Lab. of Ore Deposit Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China College of Applied Nuclear Technology and Automation Engineering Chengdu University of Technology Chengdu 610059 China Department of Earth Sciences The University of Hong Kong Pokfulam Road Hongkong Hong Kong

The Emeishan large igneous province in the western Yangtze Block was resulted from a mantle plume at end of the Middle Permian. Four super-large V-Ti-magnetite deposits and 10 large-medium Ni-Cu-(PGE) sulfide deposits have been explored in the Emeishan large igneous province. Precise age data indicated that these ore-bearing mafic-ultramafic intrusions were produced by the same mantle plume that caused the Emeishan flood basalts at 260 Ma±. The maficultramafic intrusion hosting V-Ti-magnetite deposits and Ni-Cu-(PGE) sulfide deposits are distinguished in localization, scale, rock-assemblages, components of rock-forming minerals. The Emeishan large province can be divided to Inner- and Outer-Zones. The Inner-Zone is marked by large thickness of the Emeishan flood basalts, large layered intrusions, mafic-ultrmafic intrusive bodies, low-Ti basalts, alkaline intrusions, and various mineralizations related to the mantle plume. The basalts become thinner and consist of high-Ti basalts in the Outer-Zone where fewer mafic-ultramafic bodies are exposed. Special and geochemical relationship between the two type of magmatic deposits and high- and low-Ti basalts,the study on petrogenetic links between the Ni-Cu-(PGE) sulfide deposits and the Emeishan flood basalts in the Yangliuping area indicate that the magmatic deposits formed in different dynamic stages of the mantle plume. The V-Ti-magnetite deposits are associated with the high-Ti basaltic magmas and related to fractional crystallization. In contrast, the Ni-Cu-(PGE) sulfide mineralization may be related to either the high- or low-Ti basaltic magmas and controlled by three factors: high degree partial melting of upper mantle, contamination of the lower crust, and fractional crystallization. The Ni-Cu-(PGE) sulfide deposits were formed earlier than the V-Ti-magnetite deposits.

关键词： Petrology

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Ratcheting Behavior of T225NG Titanium Alloy under Uniaxial Cyclic Stressing: Experiments and Modeling

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Chinese Journal of Aeronautics 2005年第1期18卷 31-39页

作者：蔡力勋牛清勇邱绍宇刘宇杰 Department of Applied Mechanics and Engineering Southwest Jiaotong UniversityChengdu 610031China.National Key Laboratory for Nuclear Fuel and Material Nuclear Power Institute of China Chengdu 610051China College of Science Wuhan University of Science and Technology Wuhan 430081China National Key Laboratory for Nuclear Fuel and Material Nuclear Power Institute of China Chengdu 610051China Department of Applied Mechanics and Engineering Southwest Jiaotong UniversityChengdu 610031China

In order to investigate the ratcheting behavior of T225NG alloy, a series of ratcheting tests under uniaxial long-cyclic stressing were performed. The results show that the ratcheting strain of this alloy can get into shakedown after tens （or hundreds） of thousand cycles. After the ratcheting strain is saturated under the condition that stress amplitude is half of peak stress, it will bring about subsequent fatigue failure, and relationship between fatigue life and one of peak stress and saturated ratcheting （SR） strain meets power law. As the alloy is under stress jiggling with stress amplitude that is 1%-2.5% of peak stress, the ratcheting strain still become remarkable and goes into shakedown after several hundreds of thousand cycles but there exists little accessional strain caused by creep effect. It is notable that, when the peak stress is 85%-100% of yield stress, the long-cyclic stressing will lead SR strain to be from 1.4% to 2.5% even if the initial ratio of ratcheting strain is zero. Based on ratcheting threshold property of peak stress and monotonicity of relationship between the peak stress and SR strain, a saturated ratcheting model （SRM） is developed to predict SR strain and to estimate saturated creep strain also. In addition, the classes of ratcheting evolutions of metals are discussed.

关键词： T225NG titanium alloy shakedown ratcheting cycle plasticity stress strain fatigue creep

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Ant algorithms for power management system of wearable computer

Ant algorithms for power management system of wearable compu...

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International Symposium on Communications and Information Technologies (ISCIT)

作者： Hedingrun Liuxiaoyun Chengdongyi College of Automation Engineering University of Electronic Science and Technology Chengdu Sichuan China

Power use is one of the most important factors for wearable computer. This paper first imposes ant algorithms for power management system of wearable computer, which is able to do developing control power use and dynamic attempter loads; then improves the efficiency of power use and prolongs working hours of wearable system. The result shows that it is viable to improve on traditional power management system of wearable computer.

关键词： Energy management Power system management Wearable computers Cities and towns Batteries Energy consumption Ant colony optimization Control systems Mobile computing Educational institutions

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Rough rings revisited

Rough rings revisited

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Han, Su-Qing Cheng, Wei Wang, Jue Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 100080 China Department of Mathematics Taiyuan Teacher's College Taiyuan 030012 China College of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)078039092X

Rough groups and rough rings have been investigated by Biswas & Nanda [Bull. Polish Acad. Sci. Math. 42 (1994) 251-254], Kuroki and Wang [Inform. Sci. 90 (1996) 203-220] and Dawaz [Inform. Sci. 164 (2004) 147-163], But in which some conclusions do not always hold in general. In this paper, we have revisited rough rings in a uniform and complete form, some new properties of rough rings are obtained, and the modified versions of those conclusions that are improper in Davvaz [Inform. Sci. 164 (2004) 147-163] are modified. ©2005 IEEE.

关键词： Learning systems

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Method to evaluate measurement uncertainty of imprecise neutrons data

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Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams 2005年第3期17卷 460-462页

作者： Xiao, Ming-Zhu Chen, Guang-Ju College of Automation Engineering University of Electronic Science and Technology of China Chengdu 610054 China Institute of Electronic Engineering China Academy of Engineering Physics P.O. Box 919-523 Mianyang 621900 China

The measurement uncertainty is often evaluated by a probabilistic approach, but such evaluation is not always adapted to imprecise measurement data. This paper focuses on the use of the evidence theory to evaluate the measurement uncertainty of imprecise neutrons data. A formula is presented to measure and calculate the measurement uncertainty of imprecise neutrons data coming from imprecise physical sensors and approximate estimations provided by experts, the validity of the formula is demonstrated by two examples. The formula can be applied to precise neutrons data too.

关键词： Data processing

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Rough rings revisited

Rough rings revisited

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International Conference on Machine Learning and Cybernetics (ICMLC)

作者： Su-Qing Han Wei Cheng Jue Wang Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy and Sciences Beijing China College of Computer Science and Engineering University of Electronic Science and Technology Chengdu China

Rough groups and rough rings have been investigated by Biswas & Nanda [Bull. Polish Acad. Sci. Math. 42 (1994) 251-254], Kuroki and Wang [Inform. Sci. 90 (1996) 203-220] and Davvaz [Inform. Sci. 164 (2004) 147-163], but in which some conclusions do not always hold in general. In this paper, we have revisited rough rings in a uniform and complete form, some new properties of rough rings are obtained, and the modified versions of those conclusions that are improper in Davvaz [Inform. Sci. 164 (2004) 147-163] are modified.

关键词： Educational institutions Rough sets Laboratories Intelligent systems automation Mathematics Computer science Machine learning Cybernetics

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Radial basis function neural network models for power-amplifier design

Radial basis function neural network models for power-amplif...

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International Conference on Communications, Circuits and Systems (ICCCAS)

作者： Guoqing Xu Mingyu Li Youbai Xi College of Automation Engineering College of Electronic Engineering University of Electronic Science and Technology Chengdu China

ISBN: (纸本)0780386477

A method for learning the dynamic responses of a nonlinear power-amplifier with a radial basis function (RBF) neural network is presented. The training data of the RBF neural networks are samples of the input and output waveforms of the power-amplifier. A new training scheme employing efficient gradient-based optimization methods is developed to train the RBF neural networks model. Simulation results are presented to demonstrate the superiority of the RBF neural networks compared with recurrent neural networks and other networks.

关键词： Radial basis function networks Neural networks Training data Power system modeling Circuits Power amplifiers Biological system modeling Design automation Modems Educational institutions

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Frequency domain interpolation wavelet transform based algorithm for harmonic analysis of power system

Frequency domain interpolation wavelet transform based algor...

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International Conference on Communications, Circuits and Systems (ICCCAS)

作者： Tianjun Du Guangju Chen Yong Lei CAT Lab College of Automation Engineering University of Electronic Science and Technology Chengdu China

ISBN: (纸本)0780386477

A power system harmonic detection technique based on a frequency domain interpolation wavelet transform is proposed. Aiming at harmonic detection, a fast Fourier transform (FFT) can only detect integer harmonics; a short time Fourier transform (STFT) can detect non-integer harmonics with low resolution; a wavelet transform can detect non-integer harmonics, but it has spectral aliasing and spectral leakage phenomena, which result in low resolution. This paper uses a frequency domain interpolation algorithm to detect a harmonic signal by choosing a Shannon wavelet. Simulation and comparative results obtained by three algorithms reveal that: the proposed method can effectively eliminate spectral aliasing, spectral leakage and the Gibbs phenomenon; it can precisely detect a harmonic signal, so it provides an effective means for power system harmonic analysis and detection.

关键词： Frequency domain analysis Interpolation Wavelet analysis Wavelet domain Wavelet transforms Harmonic analysis Power system analysis computing Power system harmonics Leak detection Fast Fourier transforms

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Full load vehicle routing with multiple depots: A new, network flow based algorithm

Full load vehicle routing with multiple depots: A new, netwo...

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3rd International Conference on Traffic and Transportation Studies, ICTTS 2002

作者： Mingshan, Zhang Dali, Jiang Xiaowo, Tang School of Economics and Management Southwest University for Nationalities 12 Nan Si Duan Yi Huan Lu Chengdu 610041 China Department of Automation Engineering Logistic Engineering University 147 Changjiang Er Lu Chongqing 400042 China Management College University of Electronics Science and Technology of China 4 Jianshe Bei Lu Chengdu 610054 China

ISBN: (纸本)0784406308

This paper considers the problem of scheduling a fleet of identical vehicles to execute a set of freight orders in truckload quantities. Each freight order is given in terms of an origin and a destination and the number of truckloads to be transported between them. The goal is to minimize the total cost of travel while completing all freight orders. Our work is the first to allow vehicles to be dispatched from a depot and discharged into another after service. We propose an algorithm that starts from an optimal solution to a network flow model which considers all data in the problem in parallel including unloaded travel costs, freight orders, depots, availability of vehicles and the vehicle receiving capacity at each depot. The network solution is then iteratively modified through heuristic operations and the routing of vehicles is determined, one at a time, based on the modified solution. A novel feature of the algorithm is the option of resolving the network model for scheduling the remaining vehicles.

关键词： Vehicle routing

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