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The Perturbation Bound of the Extended Vertical linear Complementarity Problem

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Journal of the Operations Research Society of china 2024年第3期12卷 601-625页

作者： Shi-liang Wu wen li He-Hui Wang school of Mathematics Yunnan Normal UniversityKunming650500YunnanChina school of mathematical Sciences South China Normal UniversityGuangzhou510631GuangdongChina school of Mathematics and Statistics Yunnan UniversityKunming650091YunnanChina

In this paper,we discuss the perturbation analysis of the extended vertical linear complementarity problem(EVLCP).Under the assumption of the row W-property,we derive several absolute and relative perturbation bounds ... 详细信息

关键词： The extended vertical linear complementarity problem The row W-property The perturbation bound

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原子激光传输的有效ABCD形式研究

物理学报 2004年第2期53卷 356-361页

作者：殷建玲刘承宜杨友源刘江范广涵华南师范大学激光运动医学实验室广州510631 香港教育学院科学系华南师范大学信息光电子科技学院广州510631

利用含适量子系统传播子的ABCD形式的理论 ,将品质因子守恒系统中的ABCD定律 ,推广到有效品质因子守恒的系统———原子激光的传输中 ,通过引入有效品质因子和有效参数qeff,利用Heisenberg图像得到传播子的有效ABCD形式 .由于原子激光... 详细信息

利用含适量子系统传播子的ABCD形式的理论 ,将品质因子守恒系统中的ABCD定律 ,推广到有效品质因子守恒的系统———原子激光的传输中 ,通过引入有效品质因子和有效参数qeff,利用Heisenberg图像得到传播子的有效ABCD形式 .由于原子激光内部原子间相互作用的存在 ,原有的品质因子不再守恒。

关键词：原子激光传输有效ABCD参数传播子品质因子守恒系统原子激光器量子力学薛定谔方程

The characteristics of sea fog with different airflow over the Huanghai Sea in boreal spring

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Acta Oceanologica Sinica 2010年第4期29卷 3-12页

作者： HUANG Jian WANG Xin ZHOU wen HUANG Huijun WANG Dongxiao ZHOU Faxiu Institute of Tropical and Marine Meteorology China Meteorological Administration Guangzhou 510080 China Guy Carpenter Asia-Pacific Climate Impact Centre School of Energy and Environment City University of Hong Kong Hong Kong China CAS key laboratory of tropical marine environmental dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Department of meteorology Ocean University of China Qingdao 262003 China

Using the observations from ICOADS datasets and contemporaneous NCEP/NCAR reanalysis datasets during 1960-2.02.the study classifies the airflows in favor of sea fog over the Huanghai （Yellow） Sea in boreal spring （April-May） with the method of trajectory analysis,and analyzes the changes of proportions of warm and cold sea fogs along different paths of *** to the heat balance equation,we investigate the relationships between the marine meteorological conditions and the proportion of warm and cold sea fog along different airflow *** major results are summarized as follows.（1） Sea fogs over the Huanghai Sea in spring are not only warm fog but also cold *** proportion of warm fog only accounts for 44% in April,while increases as high as 57% in May.（2. Four primary airflow paths leading to spring sea fog are *** are originated from the northwest,east,southeast and southwest of the Huanghai Sea,*** occurrence ratios of the warm sea fog along the east and southeast airflow paths are high of 55% and 70%,while these along the southwest and northwest airflow paths are merely 17.9% and 50%.（3） The key physical processes governing the warm/cold sea fog are heat advection transport,longwave radiation cooling at fog top,solar shortwave warming and latent heat flux between airsea interfaces.（4） The characteristics of sea fog along the four airflow paths relate closely to the conditions of water vapor advection,and the vertical distribution of relative humidity.

关键词： spring sea fog over the Huanghai Sea airflow paths water vapor flux heat advection vertical distribution of water vapor

OBSERVATION ON DEFECTS IN POLYCRYSTALliNE SIliCON THIN FILMS

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Acta Metallurgica Sinica(English Letters) 2005年第3期18卷 295-299页

作者： Y.F. Hu1), H. Shen2., L. Wang3), Z.C. liang3), Z.Y. liu1) and L.S. {2.1) 1) College of Mechanical Engineering, south china university of Technology, Guan gzhou 510640, china 2. The school of Physics and Engineering, Zhongshan university, guangzhou 5102.5 , china 3) guangzhou Institute of Energy Conversion, The Chinese Academy of Sciences, G uangzhou 510640, china College of Mechanical Engineering South China University of Technology Guangzhou 510640China The school of Physics and Engineering Zhongshan University Guangzhou 510275China guangzhou Institute of Energy Conversion The Chinese Academy of Sciences Guangzhou 510640China

Polycrystalline silicon thin films were prepared by RTCVD (rapid thermal chemica l vapor deposition) method on several substrates such as SSP (silicon sheet from powder) ribbon, poly-Si wafer and mono-Si wafer. Intra-granular defects such as stacking faults, twins and microstructure defects were investigated on thin fil ms by scan electron microscopy (SEM) technique.

关键词： poly-Si thin film intra-granular defects surface cross-section

Object use in insects

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Insect Science 2024年第4期31卷 1001-1014页

作者： Chao wen Cai Wang Xiaoli Guo Hongyu li Haijun Xiao Junbao wen Shikui Dong school of Grassland Science Beijing Forestry UniversityBeijingChina College of Forestry and Landscape Architecture South China Agricultural UniversityGuangzhouChina Beijing Key Laboratory for Forest Pest Control Beijing Forestry UniversityBeijingChina

Insects are the most diverse group of organisms in the animal kingdom,and some species exhibit complex social *** research on insect object use is still in its early stages,insects have already been shown to display rich object-use *** review focuses on patterns and behavioral flexibility in insect object-use behavior,and the role of cultural evolution in the development of object-use *** use in insects is not widespread but has been documented in a diverse set of *** insects can use objects flexibly and display various object-use *** mammals and birds,insects use objects in diverse activities,including foraging,predator defense,courtship,and ***,pre-existing manipulative behaviors,and anatomical structure affect innovations in object *** addition,learning and imitation are the main mechanisms underlying the spread of object-use behaviors within *** that insects are one of the major animal groups engaging in object use,studies of insect object use could provide general insights into object use in the animal kingdom.

关键词： cognition evolution insects learning object use

Simple and Efficient Password-Based Authenticated Key Exchange Protocol

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Journal of Shanghai Jiaotong university(Science) 2011年第4期16卷 459-465页

作者：王立斌潘嘉昕马昌社 school of Computer South China Normal University

Password-based authenticated key exchange(PAKE) protocols are cryptographic primitives which enable two entities,who only share a memorable password,to identify each other and to communicate over a public unreliable network with a secure session *** this paper,we propose a simple,efficient and provably secure PAKE protocol based on Diffie-Hellman key exchange and cryptographic hash *** protocol is secure against dictionary *** security is proved based on the hardness of the computational Diffie-Hellman problem in the random oracle model.

关键词： password authentication key exchange provable security

Preparation of anatase TiO_2.with assistance of surfactant OP-10 and its electrochemical properties as an anode material for lithium ion batteries

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Rare Metals 2010年第5期29卷 505-510页

作者： YI Jin,TAN Chunlin,li Weishan,LEI Jianfei,and HAO liansheng school of Chemistry and Environment & Key Laboratory of Electrochemical Technology on Energy Storage and Power Generation of Guangdong Higher Education Institutes,south china normal university,guangzhou 510006,china school of Chemistry and Environment & Key Laboratory of Electrochemical Technology on Energy Storage and Power Generation of Guangdong Higher Education Institutes South China Normal University Guangzhou China

With the assistance of nonionic surfactant （OP-10） and surface-selective surfactant （CH3COOH）, anatase TiO2.was prepared as an anode material for lithium ion batteries. The morphology, the crystal structure, and the electrochemical properties of the prepared anatase TiO2.were characterized by scanning electron microscopy （SEM）, X-ray diffraction （XRD）, electrochemical impedance spectroscopy （EIS）, and galvanostatic charge and discharge test. The result shows that the prepared anatase TiO2.has high discharge capacity and good cyclic stability. The maximum discharge capacity is 313 mAh.g^-1, and there is no significant capacity decay from the second cycle.

关键词： lithium ion batteries titanium dioxide sol-gel process electrochemical properties sttrfactants

大学生自我价值感领域权变性与主观幸福感的关系

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心理发展与教育 2011年第4期27卷 434-440页

作者：王磊郑雪华南师范大学公共管理学院广州510006 华南师范大学教育科学学院广州510631

为了探讨自我价值感领域权变性与主观幸福感之间的关系,186名大学生参加了问卷调查。对调查数据进行了多元线性回归分析和结构方程建模分析。结果表明,自我价值感的人际接纳权变性对积极情感产生负向的直接效应,并通过自我价值感对积极... 详细信息

为了探讨自我价值感领域权变性与主观幸福感之间的关系,186名大学生参加了问卷调查。对调查数据进行了多元线性回归分析和结构方程建模分析。结果表明,自我价值感的人际接纳权变性对积极情感产生负向的直接效应,并通过自我价值感对积极情感和消极情感分别产生负向的和正向的间接效应;自我价值感的道德原则权变性则对生活满意度和积极情感均产生正向的直接效应,并通过自我价值感对积极情感和消极情感分别产生正向的和负向的间接效应。

关键词：大学生自尊自我价值感领域权变性主观幸福感

Study on hydrodynamic lubrication with second-order fluid (Ⅱ)——Numerical Analysis

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Science china Mathematics 2001年第S1期44卷 8-13页

作者： li Zhiheng HUANG Ping MENG Yonggang wen Shizhu 1. Mechatronic Engineering Department, {2. china university of Technology, guangzhou 510641, china 2. National Tribology Laboraory, Tsinghua university, Beijing 100084, china

The basic lubrication equations are used to calculate two kinds of lubrications examples,a plane inclined slider and a journal bearing respectively. In the calculation of the journal bearing,the Reynolds’ boundary conditions are used. In the calculation, it is found that the load carryingcapacities of the slider and the journal are of different tendencies with increase in Deborah ***, the results show that with decrease in the film thickness the increase in the normalstress of second-order fluid is greater than that of Newtonian fluid. Finally, it is found that the dis-tribution of the normal stress changes significantly at a certain thickness.

关键词： hydrodynamic lubrication thin film Lubrication second-order fluid numerical analysis