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Bilinear Bäcklund Transformation for a Variable-Coefficient Kadomtsev–Petviashvili Equation

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Chinese Physics Letters 2011年第6期28卷 24-27页

作者： WU jian-ping Institute of Electronic Technology Information Engineering UniversityZhengzhou 450004

Resorting to the Hirota bilinear form,a bilinear Bäcklund transformation(BT)is obtained for a variable-coefficient Kadomtsev–Petviashvili *** applications,based on the resulting bilinear BT,single-soliton solutions and two-soliton solutions together with their soliton characteristics are presented for the ***,starting from the bilinear BT,a Lax pair and a new variable-coefficient(2+1)-dimensional nonlinear evolution equation is derived.

关键词： equation bilinear soliton

Is editing the roadblock to the internationalization of Chinese academic journals?

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第6期12卷 503-506页

作者： jian-ping LU School of International Studies Zhejiang University Hangzhou 310058 China

"China's internationalization" is in part realized through the dissemination of Chinese publications,such as academic ***,editorial proficiency in the English language is of vital importance to the quality of the *** article analyzes the results of the two projects sponsored by the General Administration of Press and Publication of the People's Republic of China in 2007 and 2010 respectively,namely the "Analytical Evaluation of Language and Editing Quality of Chinese Academic Journals in English Language Issued in 2006",and the "Evaluation of Publication Quality of the China-Grown English Periodicals Issued in 2009,Sanctioned from 2005 to 2009",and proposes solutions to the problems presented therein.

关键词： China internationalization Quality of academic journals Editorial proficiency

A New Wronskian Condition for a(3+1)-Dimensional Nonlinear Evolution Equation

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Chinese Physics Letters 2011年第5期28卷 57-59页

作者： WU jian-ping Institute of Electronic Technology Information Engineering UniversityZhengzhou 450004

A new Wronskian condition is set for a(3+1)-dimensional nonlinear evolution *** the aid of the Hirota bilinear transformation,a novel Wronskian determinant solution is presented for the equation.

关键词： equation bilinear Nonlinear

NUMERICAL METHOD FOR MULTI-BODY FLUID INTERACTION BASED ON IMMERSED BOUNDARY METHOD

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Journal of Hydrodynamics 2011年第4期23卷 476-482页

作者： MING ping-jian ZHANG Wen-ping School of Power and Energy Engineering Harbin Engineering University Harbin 150001 China

A Cartesian grid based on Immersed Boundary Method （IBM）, proposed by the present authors, is extended to unstructured grids. The advantages of IBM and Body Fitted Grid （BFG） are taken to enhance the computation efficiency of the fluid structure interaction in a complex domain. There are many methods to generate the BFG, among which the unstructured grid method is the most popular. The concept of Volume Of Solid （VOS） is used to deal with the multi rigid body and fluid interaction. Each body surface is represented by a set of points which can be traced in an anti-clockwise order with the solid area on the left side of surface. An efficient Lagrange point tracking algorithm on the fixed grid is applied to search the moving boundary grid points. This method is verified by low Reynolds number flows in the range from Re = 100 to 1000 in the cavity with a moving lid. The results are in a good agreement with experimental data in literature. Finally, the flow past two moving cylinders is simulated to test the capability of the method.

关键词： fluid-structure interaction Immersed Boundary Method (IBM) Volume Of Solid (VOS) unstructured grids

A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel

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International Journal of Minerals,Metallurgy and Materials 2012年第9期19卷 821-826页

作者： Yuan-zhi Zhu jian-ping XU The Key Laboratory of the Ministry of Education of China for Ferrous Metallurgy and Resources Utilization Wuhan University of Science and Technology Wuhan 430081 China School of Materials and Metallurgy Wuhan University of Science and Technology Wuhan 430081 China

A novel diffusion couple method was used to investigate the interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel and its effects on phase transformation at the interface. It is discovered that the content of arsenic has great effect on grain growth and phase transformation at high temperature. When the arsenic content is no more than lwt%, there is no obvious grain growth and no obvious ferrite transitional region formed at the diffusion interface. However, when the arsenic content is no less than 5wt%, the grain grows very rapidly. In addition, the arsenic-enriched ferrite transitional layer forms at the diffusion interface in the hot-rolling process, which results from a slower diffusion rate of arsenic atoms than that of carbon in ferrite.

关键词： low carbon steel alloy steel arsenic diffusion bonding phase transformation grain growth

A Two-stage Autonomous EV Charging Coordination Method Enabled by Blockchain

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Journal of Modern Power Systems and Clean Energy 2021年第1期9卷 104-113页

作者： jian ping Zheng Yan Sijie Chen Key Laboratory of Control of Power Transmission and Conversion Ministry of Education(Shanghai Jiao Tong University)ShanghaiChina

Increasing electric vehicle(EV) penetration in distribution networks necessitate EV charging coordination. This paper proposes a two-stage EV charging coordination mechanism that frees the distribution system operator(DSO) from extra burdens of EV charging coordination. The first stage ensures that the total charging demand meets facility constraints,and the second stage ensures fair charging welfare allocation while maximizing the total charging welfare via Nash-bargaining trading. A decentralized algorithm based on the alternating direction method of multipliers(ADMM) is proposed to protect individual privacy. The proposed mechanism is implemented on the blockchain to enable trustworthy EV charging coordination in case a third-party coordinator is absent. Simulation results demonstrate the effectiveness and efficiency of the proposed approach.

关键词： Electric vehicle(EV)charging coordination Nash bargaining alternating direction method of multipliers(ADMM) blockchain

Facile tuning of hydrogel properties by manipulating cationic-aromatic monomer sequences

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Science China Chemistry 2021年第9期64卷 1560-1568页

作者： Hailong Fan Yirong Cai jian ping Gong Institute for Chemical Reaction Design and Discovery(WPI-ICReDD) Hokkaido UniversitySapporo001-0021Japan Graduate School of Life Science Hokkaido UniversitySapporo001-0021Japan Faculty of Advanced Life Science Hokkaido UniversitySapporo001-0021Japan Global Station for Soft Matter GI-CoRE Hokkaido UniversitySapporo001-0021Japan

Copolymer hydrogels formed from cationic and aromatic monomers with identical monomer compositions but different average sequences were synthesized by free-radical copolymerization in various *** found that hydrogels with one-componentrich segments are mechanically stronger than those with adjacent-rich monomer sequences in water,while hydrogels with a rich cation-πadjacent sequence showed excellent mechanical strength and underwater adhesion in saltwater(0.7 M Na Cl).The molecular mechanisms for these behaviors are discussed in terms of polymer *** work reveals the importance of monomeric sequences in determining hydrogel properties and provides a facile approach to develop hydrogels with different properties but the same monomer composition.

关键词： free-radical polymerization monomer sequence hydrogel cation-πinteractions underwater adhesion

Reservoir-landslide Hazard Assessment Based on GIS: A Case Study in Wanzhou Section of the Three Gorges Reservoir

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Journal of Mountain Science 2013年第6期10卷 1085-1096页

作者： WANG Meng QIAO jian-ping Key Laboratory of Geo-surface Process and Mountain Hazards Institute of Mountain Hazards and Environment Chinese Academy of Science

Reservoir-landslide is mainly caused by changes in hydrodynamic conditions of slope interior at the time of water storage or discharge. The current study mainly focuses on the typical reservoirlandslide, but the sudden occurrence of some unknown landslides brought a lot of difficulties for hazards prevention. Therefore, we proposed a method to evaluate the regional scale reservoir-landslide hazard. We took Wanzhou section of Three Gorges Reservoir(China) as the study area and systemically and synthetically carried out the reservoir-landslide hazard evaluation under the condition of water level regulation. Firstly, we made reservoir-landslide susceptibility assessment by using the methods of spatial analysis and statistics based on geological and geomorphological materials and field survey data, and then, analyzed the regional-scale slope stability based on the infinite slope model used to analyze the bank slope stability change under the condition of water fluctuation, finally, developed a reservoir-landslide hazard evaluation model based on the results of susceptibility and stability. The hazard evaluation model was used to predict and evaluate the hazard change under the role of water level regulation. The results showed that the landslide hazard of the whole region decreased during water storage, landslide hazards increased during water discharge. The faster the regulation speed, the greater the slope hazard. The results can provide the basis for hazard management and regional land-use planning.

关键词： Reservoir-landslide Hazards assessment

Comments on "Traditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China: Analysis from the China PEACE Retrospective Heart Failure Study"

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Chinese Journal of Integrative Medicine 2020年第3期26卷 163-164页

作者： YANG Ming LIU jian-ping Beijing University of Chinese Medicine

Recently,Journal of American Heart of Association published an article entitled"Traditional Chinese Medicine Use in the Treatment of Acute Heart Failure in Western Medicine Hospitals in China:Analysis from the China PEACE Retrospective Heart Failure Study",which drew a conclusion of traditional Chinese medicine(TCM)may be harmful for heart failure patients and added the possibility of bleeding and mortality.(1)However,there existing several drawbacks in the study design,data analyses,and the conclusions that may mislead readers.

关键词： Medicine mortality bleeding