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Transient Current Behaviour for Iron in 3.5%NaCl and 3.5%NaCl+ 1%NaNO_2 Solutions during Corrosion Fatigue

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Journal of Materials Science & technology 1996年第4期12卷 291-298页

作者： Zhengfu WANG Xuejun WEI Jin LI and Wei KE(state key lab. for Corrosion and Protection, Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences, Shenyang 110015, China) state key lab. for Corrosion and Protection Institute of Corrosion and Protection of Metals Chinese Academy of Sciences Shenyang 110015 China

The transient current behaviour for Iron in 3.5%NaCl and 3.5%NaCl +1%NaNO2 solutions during corrosion fatigue (CF) process has been investigated at different given strain amplitudes and strain rates. The results show that elastic strain has little contribution to material dissolution. The elastic tension strain results in the decrease in the transient current, while the elastic compression strain increases the transient current. Compared to the elastic deformation, plastic deformation affects material dissolution evidently For iron in 3.5%NaCl solution, the strain amplitude plays a dominant role in the dissolution process accelerated by the plastic strain, while in 3.5%NaCl+1%NaNO2 solution, both the strain amplitude and strain rate play an important role in this process. In this paper, the effect of the elastic deformation on the material dissolution and the relation between the tension and compression current peak values under the plastic cycle deformation are discussed

关键词： Transient Current Behaviour for Iron in 3.5%NaCl and 3.5%NaCl SCE NaNO2 Solutions during Corrosion Fatigue

Preparation of Li-B Alloy and Study of Its Microstructure and Discharge Characteristics

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Journal of Materials Science & technology 2000年第6期16卷 581-584页

作者： Zhijian LIU, Zhiyou LI, Wei DUAN, Xuanhui QU, Baiyun HUANG and Siqi ZHANG (state key laboratory for Powder Metallurgy , Central-South University of technology, Changsha 410083, China) [Manuscript received November 2, 1999] state key lab. for Powder Metall. Central South Univ. of Technol. Changsha 410083 China

A Li-B alloy has been prepared using a pretreated amorphous B powder and pure Li ingot as starting materials by continually slow addition of B powder and intensified stirring in the process of melting. The microstructure and the discharge characteristic of the materials have been investigated- Results show that the problem of temperature control in synthesis would be modified by means of continual addition of B powder, the Li7B6 would be more finely distributed in the metal Li by means of intensified stirring. The discharge characteristic of the Li-B alloy using amorphous B as starting materials is almost the same with that of using crystalline B.

关键词： Li Preparation of Li-B Alloy and Study of Its Microstructure and Discharge Characteristics

Content-based Information Processing-A New Challenge

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Content-based Information Processing-A New Challenge

NUMERICAL SIMULATON OF IMPROVED BOUSSINESQ EQUATIONS BY A FINITE ELEMENT METHOD

第三十届中国控制会议

作者： ZHANG Bo Information Science & technology College,Computer Science & technology Department, Tsinghua National lab for Information Science & technology,state key lab of intelligent technology & systems Tsinghua University,Beijing 100084,P.R.China

＜正＞Since a big change of man-machine interaction mode has occurred in web era,information processing faces the *** is,information processing has had to deal with the semantic meaning of the *** information processing approaches only handle the form of information and are irrelevant to its semantic *** urgent affair is to establish a new strategy that can deal with the content of information based on the classical information processing *** the talk,the difficulty we faced recently and the future research direction in information processing are discussed,expressly;the multi-disciplinary study among neural science,cognitive science,psychology and information science is emphasized.

关键词： Information processing Semantics Multi-disciplinary study

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Journal of Hydrodynamics 2003年第4期15卷 31-40页

作者： Zhao Ming, Teng Bin, Liu Shu-xue state key laboratory of Coastal and Offshore Engineering, Dalian University of technology, Dalian 116024, China lab. of Coastal and Offshore Eng. Dalian Univ. of Technol. Dalian 116024 China

The improved Boussinesq equations for varying depth derived by Beji andNadaoka significantly improved the linear dispersive properties of wave models in intermediate waterdepths. In this study, a finite element method was developed to solve the improved Boussinesqequations. A spongy layer was applied at the open boundary of the computational domain to absorb thewave energy. The fourth-order predictor-corrector method was employed in the time *** test cases were illustrated. The numerical results of this model were compared withlaboratory data and those from other numerical models. It turns out that the present numerical modelis capable of giving satisactory prediction for wave propagation.

关键词： boussinesq equations finite element method numerical simulation

Preparation of Electrically Conductive Filler for Anisotropic Conductive Adhesive

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上海交通大学学报 2007年第S2期41卷 127-130,138页

作者：华丽安兵吴懿平吴丰顺王佳何敬强 state key lab.of Material Processing and Die & Mould technology Huazhong Univ.of Science & Technology

The preparation process of electrically conductive filler for anisotropic conductive adhesive was performed and *** spherical filler contains tri-layer structures: resin core,Ni-P intermediate coating layer,Au outer coating *** 4 μm resin spherical cores were synthesized by monodispersion polymerization *** they were contributed to electrical conductivity by electrolessly plating Ni-P layer and gold *** particles have good corrosion resistance,high stability,and enough mechanical *** mixed with thermosetting epoxy resin to produce anisotropic conductive adhesive(ACA),it can realize a good conductive bonding between bumps on dies and pads on *** environmentally friendly conductive material offers numerous advantages over conventional solder technology and is an ideal substitute for the lead-contained solder in electronics packaging.

关键词： anisotropic conductive adhesive(ACA) monodispersion polymerization microsphere electroless plating

Robotic Etiquette:Socially Acceptable Navigation of Service Robots with Human Motion Pattern Learning and Prediction

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Journal of Bionic Engineering 2010年第2期7卷 150-160页

作者： Kun Qian,Xudong Ma,Xianzhong Dai,Fang Fang key lab of Measurement and Control of Complex systems of Engineering (Ministry of Education,China), Southeast University,Nanjing 210096,P.R.China key lab of Measurement and Control of Complex systems of Engineering (Ministry of Education China) Southeast University Nanjing P. R. China

Nonverbal and noncontact behaviors play a significant role in allowing service robots to structure their interactions *** this paper, a novel human-mimic mechanism of robot’s navigational skills was proposed for developing sociallyacceptable robotic *** on the sociological and physiological concerns of interpersonal interactions in movement,several criteria in navigation were represented by constraints and incorporated into a unified probabilistic cost grid for safemotion planning and control, followed by an emphasis on the prediction of the human’s movement for adjusting the robot’spre-collision navigational *** human motion prediction utilizes a clustering-based algorithm for modeling humans’indoor motion patterns as well as the combination of the long-term and short-term tendency prediction that takes into accountthe uncertainties of both velocity and heading *** simulation and real-world experiments verified the effectivenessand reliability of the method to ensure human’s safety and comfort in navigation.A statistical user trials study was also given tovalidate the users’favorable views of the human-friendly navigational behavior.

关键词： robotic etiquette navigation human motion prediction human-robot interaction service robot

ON ENHANCING KATZ-SMOOTHING BASED BACK-OFFLANGUAGE MODEL

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ON ENHANCING KATZ-SMOOTHING BASED BACK-OFFLANGUAGE MODEL

ViWoSG:A distributed scene graph of ultra-massive distributed virtual environments

6～(th) International Conference on Spoken Language Processing

作者： Jian Wu and FangZhengCenter of Speech technology state key laboratory of intelligent technology and systems Department of Computer Science and technology. Tsinghua University Beijing China

＜正＞Though the statistical language modeling plays an important role in speech recognition, there are still problems that are difficult to be solved such as the sparseness of training data, Generally, two kinds of smoothing approaches, namely the back-off model and the interpolated model, have been proposed to solve the problem of the impreciseness of language models caused by the sparseness of training data. By expanding the idea of interpolation model to Katz-smoothing based re-estimation of the

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Science in China(Series F) 2009年第3期52卷 457-469页

作者： WANG GuoPing, LI Sheng, WANG ShaoRong, LU Bin & LI WenHang key lab of Machine Perception and intelligent, MOE Department of Computer Science, Peking University, Beijing 100871, China key lab of Machine Perception and intelligent MOE Beijing China Department of Computer Science Peking University Beijing China

An ultra-massive distributed virtual environment generally consists of ultra-massive terrain data and a large quantity of objects and their attribute data, such as 2D/3D geometric models, audio/video, images, vectors, characteristics, etc. In this paper, we propose a novel method for constructing distributed scene graphs with high extensibility. This method can support high concurrent interaction of clients and implement various tasks such as editing, querying, accessing and motion controlling. Some application experiments are performed to demonstrate its efficiency and soundness.

关键词： VR distributed system scene graph ultra-massive distributed scene graph

A Novel Approach for TNA Address Management

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光学学报 2003年第S1期23卷 767-768页

作者： Xiaodong Wang, Yaohui Jin, Weishen Hu, Shenli Zhu state key lab of Advanced Optical Communication systems and Networks, Shanghai Jiao Tong University, P. R.China state key lab of Advanced Optical Communication systems and Networks Shanghai Jiao Tong University P. R.China

We present a new scheme to allocate/de-allocate Transport Network Assigned (TN A) address using Link Management Protocol (LMP) and to register/resolution these addresses using Lightweight Directory Access Protocol (LD... 详细信息

关键词： ASON et on A Novel Approach for TNA Address Management for OIF link LDAP LMP TNA