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IEEE Symposium on Computational Intelligence and Bioinformatics and Computational Biology (CIBCB)

作者： Lin Xu Fa Zhang Zhiyong Liu Graduate School of Chinese Academy of Sciences China Key Laboratory of Computer System and architecture Institute of Computing Technology Chinese Academy and Sciences China National Natural Science Foundation China

Aiming at the two main shortcomings in Homology Modeling, we have designed and established a domain clustering database. Searching the database is a fundamental work for it. However, current alignment algorithms are mainly based on the sequences, ignoring the structure conservation in domain. This paper proposed a profile-based alignment which considers the structure information into the profile, based on the character of our domain database. We designed an experiment within the database. The results show that both the quality and sensitivity of our scheme are better than pure Smith-Waterman and sequence-based profile algorithms. We strongly believe that this work can help to improve the protein structure prediction

关键词： Protein sequence Clustering algorithms Databases Sequences Heuristic algorithms Laboratories Computer architecture Algorithm design and analysis Computational efficiency Acceleration

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New method of precise measurement for radial rotation motion error

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Jiliang Xuebao/Acta Metrologica Sinica 2006年第SUPPL.期27卷 80-84页

作者： Lei, Xian-Qing Li, Yan Li, Ji-Shun Ma, Wei Xue, Yu-Jun Cui, Zhi-Zhong School of Machinery and Precision Instrument Engineering Xi'an University of Technology Xi'an 710048 China Henan Key Laboratory of Modern Mechanical Design and Transmission System Luoyang 471003 China Henan Key Laboratory of Advanced Manufacturing Technology Luoyang 471003 China School of Mechatronics Engineering Henan University of Science and Technology Luoyang 471003 China

The roundness error and rotation motion error of the least square center of measured section are separated by applying the roundness error separation principle based on the three-point method. Furthermore, the relationship between the pure rotation motion error and the initial position(linear eccentricity) of the least square center of measured section is described. The mathematical expression for separating the pure rotation motion error is put forward, in which the orthogonality of the trigonometric function and the above-obtained relationship is used. The experimental result indicates that the precision measurement of the radial rotation motion error of the gyro-axle can be achieved by three-point method.

关键词： Error separation technique(EST) Metrology Rotation motion Three-point method

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Development of core fuel management code system for WWER-type reactors

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Nuclear science and Techniques 2006年第5期000卷

作者： XIA BangYang WANG Tao XIE ZhongSheng National Key Laboratory for Reactor System Design Technology Chen gdu 610041 China Xi'an Jiaotong University Xi'an 710049 China Shanghai Jiaotong University Shanghai 200030 China Xi'an Jiaotong University Xi'an 710049 China

In this article, a core fuel management program for hexagonal pressurized water type WWER reactors (CFMHEX) has been developed, which is based on advanced three-dimensional nodal method and integrated with thermal hydraulic code to realize the coupling of neutronics and thermal-hydraulics. In CFMHEX, all these feedback effects such as burnup, power distribution, moderator density, and control rod insertion are considered. The verification and validation of the code system have been examined through the IAEA WWER-1000-type Kalinin NPP benchmark problem. The numerical results are in good agreement with measurements and are close to those of other international institutes.

关键词： Fuel management WWER Nodal method

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CHARACTERISTICS OF FLUCTUATION PRESSURE CAUSED BY THROTTLE ORIFICE IN PIPELINE

CHARACTERISTICS OF FLUCTUATION PRESSURE CAUSED BY THROTTLE O...

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第十三届国际核工程大会

作者： Qing Mao Jinghui Zhang Yushan Luo Haijun Wang Quan Duan Xi’an Jiaotong University National Key Laboratory for Reactor System Design Technology Nuclear Power Institute of China

From the Flow-Induced Vibration(FIV) point of view,throttle orifice can be considered as one of the essential singularities in the system that disturbs the flow and causes structure *** nu

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Preparation of Monodispersed O/W Emulsion by Ceramic External Membrane Emulsification system——Preliminary Study on Integrated Ceramic Membrane Emulsification reactor

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Chinese Journal of Chemical Engineering 2004年第4期12卷 574-576页

作者：景文珩吴俊邢卫红徐南平 Membrane Science & Technology Research Center Key Laboratory of Material-oriented Chemical Engineering of Jiangsu Province Nanjing University of Technology Nanjing 210009 China Membrane Science & Technology Research Center Key Laboratory of Material-oriented Chemical Engineering of Jiangsu Province Nanjing University of Technology Nanjing 210009 China new reactor with integrated conventional slurry stirred reactor and ceramic external membrane emul-sification system was introduced in this paper. Toluene and toluene containing surfactant was separately used as dispersed phase for preparation of emulsions. Two kinds of emulsions were prepared and compared. The volume average sizes of prepared emulsions were 3.53 μm and 3.6μm respectively. The results showed that the droplet sizes of two kinds of emulsions were similar but the monodispersed emulsion was only obtained with addition of surfactant into the dispersed phase.

A new reactor with integrated conventional slurry stirred reactor and ceramic external membrane emulsification system, was introduced in this paper. Toluene and toluene containing surfactant was separately used as dispersed phase for preparation of emulsions. Two kinds of emulsions were prepared and compared. The volume average sizes of prepared emulsions were 3.53μm and 3.6μm respectively. The results showed that the droplet sizes of two kinds of emulsions were similar, but the monodispersed emulsion was only obtained with addition of surfactant into the dispersed phase.

关键词： membrane emulsification ceramic membrane emulsion

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A non-data-aided SNR estimation algorithm for QAM signals

A non-data-aided SNR estimation algorithm for QAM signals

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International Conference on Communications, Circuits and systems (ICCCAS)

作者： Hua Xu Zupeng Li Hui Zheng National Key Laboratory of Signal Processing IETTC Chengdu China National Digital Switching System Engineering & Technological R&D Center Zhengzhou China The University of Electronic Science & Technology Chengdu China

ISBN: (纸本)0780386477

We propose a non-data-aided (NDA) signal-to-noise-ratio (SNR) estimation algorithm for quadrature amplitude modulation (QAM) signals in an additive white Gaussian noise (AWGN) channel. The NDA SNR estimation algorithm for QAM signals is derived based on a statistical ratio of observables over a block of data. The simple analysis and computer simulation for some kinds of QAM signals have been done, the results of which have proved that all the tested QAM signals can be effectively estimated by this algorithm.

关键词： Quadrature amplitude modulation Signal to noise ratio AWGN Amplitude estimation Additive white noise Data analysis Signal analysis Algorithm design and analysis Computer simulation Testing

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A rough set approach for planner evaluation

A rough set approach for planner evaluation

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IEEE International Conference on systems, Man and Cybernetics

作者： B.K. Sy Wang Jiaxin Pattern Analysis and Machine Intelligence Group System Design Engineering Department University of Waterloo Waterloo ONT Canada Department of Computer Science CUNY Flushing NY USA The State Key Laboratory of Intelligent Technology and Systems Department of Computer Science and Technology Tsinghua University Beijing China

This paper discusses a rough set approach for evaluating solutions of scheduling problems. Algorithms for solving scheduling problems are planners and the scheduling problems are modelled as constraint satisfaction problems. Conventional approach for the analysis of algorithms often focuses on the time and representational complexities, and assumes an identical cost on all operations. The proposed rough set approach augments conventional approaches for the analysis of algorithms in two ways: 1) it permits the consideration of different costs arising from different operations; and 2) it allows one to define a new utility for a complexity analysis.

关键词： Algorithm design and analysis Processor scheduling Set theory Machine intelligence Computer science Costs Search problems Educational institutions Pattern analysis system analysis and design

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Multiple experts recognition system based on neural network

Multiple experts recognition system based on neural network

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International Conference on Pattern Recognition

作者： Song Wang Xiaoyan Zhu Yijiang Jin Key National Laboratory of Artificial Intelligence Technology and System Department of Computer Science and Technology Tsinghua University Beijing China

ISBN: (纸本)081867282X

For numeral recognition, when a single classifier cannot provide a decision which is 100 percent correct, multiple classifier should be able to achieve higher accuracy. This is because group decisions are generally better than any individual's. In this paper, as evidence, the differences between a ANN classifier and a traditional classifier are discussed. Based on this concept combination methods were developed, which can aggregate the decisions obtained from individual, derive the best final decisions. But different combination methods lead to different performance: accuracy, efficiency and so on. A ANN combining algorithm is developed. The authors analyze it and a voting algorithm within experiments. First experiments on 10000 samples of handwritten numerals have powerfully shown that the results of two different individual classifiers with same features are disparate in performance. Second experiment have discussed two disparate combination methods in contrast.

关键词： Neural networks Artificial neural networks Histograms Error analysis Artificial intelligence Computer science Aggregates Algorithm design and analysis Voting Character recognition

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Research of intelligent mobile robot key techniques

Research of intelligent mobile robot key techniques

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IEEE International Conference on Industrial technology (ICIT 96)

作者： He, KZ Sun, HH Guo, MH Wang, H National Key Laboratory of Intelligent Technology and System Department of Computer Science and Technology Tsinghua University Beijing China

ISBN: (纸本)0780331044

In this paper, the intelligent mobile robot key techniques are introduced, such as architecture of intelligent mobile robot, path planning and its simulation techniques, transducer and multisensor fusion techniques, design and implement of intelligent mobile robot, vision subsystem and information reduced techniques, research of ''perception - action'' behavior and application of fuzzy control, etc.. A real outdoor mobile robot THMR-III (TsingHua Mobile Robot) that we developed has demonstrated road following, obstacle avoiding, branch road distinguishing and navigation, cross-country and target following at average speed 3.0 m/s.

关键词： mobile robots path planning intelligent control robot vision fuzzy control object recognition sensor fusion intelligent mobile robot path planning simulation multisensor fusion robot vision perception-action fuzzy control outdoor mobile robot THMR-III road following obstacle avoidance navigation road recognition

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Research on WebAssembly Runtimes: A Survey

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ACM Transactions on Software Engineering and Methodology 1000年

作者： Yixuan Zhang Mugeng Liu Haoyu Wang Yun Ma Gang Huang Xuanzhe Liu Key Laboratory of High Confidence Software Technologies (Peking University) Ministry of Education School of Computer Science Peking University China Huazhong University of Science and Technology China Institute for Artificial Intelligence Peking University China School of Computer Science Peking University National Key Laboratory of Data Space Technology and System China

WebAssembly (abbreviated as Wasm) was initially introduced for the Web and quickly extended its reach into various domains beyond the Web. To create Wasm applications, developers can compile high-level programming languages into Wasm binaries or manually write the textual format of Wasm and translate it into Wasm binaries by the toolchain. Regardless of whether it is utilized within or outside the Web, the execution of Wasm binaries is supported by the Wasm runtime. Such a runtime provides a secure, memory-efficient, and sandboxed execution environment to execute Wasm binaries. This paper provides a comprehensive survey of research on Wasm runtimes with 103 collected research papers related to Wasm runtimes following the traditional systematic literature review process. It characterizes existing studies from two different angles, including the internal research of Wasm runtimes (Wasm runtime design, testing, and analysis) and the external research (applying Wasm runtimes to various domains). This paper also proposes future research directions about Wasm runtimes.

关键词： WebAssembly WebAssembly runtime WebAssembly system Interface

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