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Three-dimensional deformation in curl vector field

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第8期13卷 565-572页

作者： Dan zeng Da-yue ZHENG Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai UniversityShanghai 200072China NetEase(Hangzhou)Network Co. Ltd.Hangzhou 310052China

Deformation is an important research topic in *** are two key issues in mesh deformation:(1) selfintersection and(2) volume *** this paper,we present a new method to construct a vector field for volume-preserving mesh deformation of free-form ***-preserving is an inherent feature of a curl vector *** the field lines of the curl vector field will never intersect with each other,a mesh deformed under a curl vector field can avoid self-intersection between field *** the vector field based on curl is useful in preserving graphic features and preventing *** proposed algorithm introduces distance field into vector field construction;as a result,the shape of the curl vector field is closely related to the object *** define the construction of the curl vector field for translation and rotation and provide some special effects such as twisting and *** into account the information of the object,this approach can provide easy and intuitive construction for free-form *** results show that the approach works effectively in real-time animation.

关键词： 3D mesh deformation Curl vector field. Volume loreservin~ Self-intersection

Set Pair Fuzzy Decision Method Based on Cloud Model

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Chinese Journal of Electronics 2016年第2期25卷 215-219页

作者： WU Aiyan MA Zhonggui zeng Guangping College of Computer North China University of Technology School of computer and communication Engineering University of Science and Technology Beijing

The paper studied the research status of fuzzy decision on the complex phenomenon. It proposed that the current researches focus on subjective fuzzy and objective randomness in language research information about this field, and the uncertainty factors influencing on the decision alternatives. To solve above problems, a new kind of fuzzy decision method was presented with cloud model and SPA. The method was used for the study of"The new rural energy development and utilization plan"to establish the renewable energy development model, and the corresponding solution was given. An active result was obtained in the experiment compared with the fuzzy twotuple linguistic analysis method, and it shows the method is rational, efficient and practical.

关键词： Cloud model Set pair analysis(SPA) Uncertainty Decision

基于网络药理学和分子对接探究黄连解毒散治疗猪传染性胃肠炎的作用机制

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中国预防兽医学报 2024年第2期46卷 147-158页

作者：银慧慧颜国庆赵武曾雪颜刘伟广西壮族自治区兽医研究所广西兽医生物技术重点实验室/农业农村部中国(广西)-东盟跨境动物疫病防控重点实验室广西南宁530001

为探究黄连解毒散(HLJDS)治疗猪传染性胃肠炎(TGE)的作用靶点及作用机制,本研究通过中药系统药理学数据库及分析平台(TCMSP)检索HLJDS中的所有化学成分,以口服生物利用度(OB≥30%)、类药性(DL≥0.18)为条件筛选HLJDS的活性化合物及HLJD... 详细信息

为探究黄连解毒散(HLJDS)治疗猪传染性胃肠炎(TGE)的作用靶点及作用机制,本研究通过中药系统药理学数据库及分析平台(TCMSP)检索HLJDS中的所有化学成分,以口服生物利用度(OB≥30%)、类药性(DL≥0.18)为条件筛选HLJDS的活性化合物及HLJDS活性化合物潜在靶点的数量和名称。利用Gene cards数据库和CTD数据库检索与筛选TGE的相关靶点和HLJDS作用于TGE的相关靶点。采用微生信在线Venn图制作工具分析HLJDS活性化合物和TGE的共同靶点。将上述数据采用Cytoscape 3.9.1软件构建中药-活性化合物-靶点的网络,其中度值>32的化合物可能是关键的化合物或者作用靶点。将HLJDS作用于TGE的相关靶点上传至STRING数据库,获得HLJDS作用于TGE的PPI网络。利用Cytoscape软件中的相关工具分析靶点的网络拓扑学参数,并通过这些参数筛选HLJDS作用于TGE的关键靶点。结果显示,从HLJDS共筛选到77个活性成分和825个药物作用靶点,并筛选到950个TGE相关靶点,其中HLJDS的活性成分与TGE交集的靶点有202个。中药-活性化合物-靶点的网络图结果显示,HLJDS通过77个有效活性化合物作用于202个HLJDS与TGE交集的靶点。PPI网络分析结果显示,肿瘤坏死因子(TNF)、表皮生长因子受体(EGFR)、一氧化氮合酶3 (NOS3)、Toll样受体4 (TLR4)与信号转导和转录活化因子3(STAT3)等31个靶点可能是HLJDS治疗TGE的关键靶点。通过DAVID数据库对HLJDS作用于TGE的相关靶点进行GO功能分析和KEGG信号通路富集分析。采用Auto Dock Vina 1.1.2将HLJDS度值前6的主要活性化合物PPI网络中前6的关键靶点进行分子对接并获得结合能。将度值前15的HLJDS活性化合物和关键靶点TLR4、TNF-α进行分子对接,通过结合能预测HLJDS活性化合物及对照化合物(姜黄素和维A酸)与TLR4、TNF-α的分子对接效果。GO功能和KEGG信号通路分析结果显示,HLJDS作用于TGE的相关靶点涉及生物过程333个、细胞组分51个、分子功能88个主要功能;涉及AGE-RAGE信号通路、PI3K-Akt信号通路和沙门氏菌感染等与TGE相关的信号通路。分子对接结果显示,HLJDS 6个主要活性化合物与6个关键核心靶点均能够自发结合。且相较于对照化合物姜黄素和维A酸,HLJDS中的黄藤素、黄连素、黄芩素和槲皮素等14个活性化合物与TLR4、TNF-α的结合能更低,结合效果更好。上述结果表明,HLJDS可通过多成分、多靶点、多信号通路作用于TGE的相关靶点,发挥治疗TGE的作用。本研究为HLJDS的进一步开发与应用提供研究基础与方向。

关键词：黄连解毒散猪传染性胃肠炎网络药理学作用机制分子对接

正交异性钢桥面板疲劳裂纹图像巡检测量系统研究

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公路 2024年第9期69卷 343-350页

作者：周焕新程斌黄斌曾令博滕念管上海交通大学船舶海洋与建筑工程学院上海市200240

为提高正交异性钢桥面板疲劳裂纹检测效率及精度,研究提出了一套集磁吸附攀爬机器人与裂纹图像处理平台为一体的新型巡检测量系统。攀爬机器人所搭载的磁吸附装置使其能安全吸附在顶板、U肋侧板以及横隔板表面,并按预先设定路线或手动... 详细信息

为提高正交异性钢桥面板疲劳裂纹检测效率及精度,研究提出了一套集磁吸附攀爬机器人与裂纹图像处理平台为一体的新型巡检测量系统。攀爬机器人所搭载的磁吸附装置使其能安全吸附在顶板、U肋侧板以及横隔板表面,并按预先设定路线或手动操作路线开展裂纹图像巡检工作,裂纹采集平台通过Wi-Fi远程控制工业相机与激光测距自标定装置,采集并实时回传图片及标定数据以计算相机的内参和外参。后处理阶段,裂纹处理平台基于神经网络训练和单应性矩阵计算,完成裂纹图像识别以及裂纹几何特征提取,并借助图像拼接技术生成钢桥面板疲劳裂纹分布全景图。在正交异性钢桥面板足尺模型上应用该系统进行裂纹图像采集与测量,结果表明:各区域常见疲劳裂纹均可实现无障碍测量,标尺长度的测量误差均在0.2%以内,平均误差仅为0.14%,裂纹分辨能力达到亚毫米级。研发的疲劳裂纹图像巡检测量系统具备很高的测量精度,且与传统方法相比具有检测过程自动高效、检测区域全覆盖等显著优势,可在实际桥梁工程中推广应用。

关键词：桥梁检测正交异性钢桥面板疲劳裂纹巡检系统图像测量攀爬机器人

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脑卒中护理门诊偏瘫患者康复需求评估量表的编制和信效度检验

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护理管理杂志 2024年第1期24卷 44-49页

作者：曾秋霞李飞丽钟华胡安梅朱利莉曾登芬重庆市中医院针灸科 400021 重庆市中医院护理部 400021 解放军总医院第四医学中心护理部北京市100048

目的编制并检验脑卒中护理门诊偏瘫患者康复需求评估量表,为有效评估患者康复需求提供适用性测评工具。方法采用文献分析、半结构访谈、专家函询、预调查形成初始量表。对重庆市3所三级甲等医院脑卒中护理门诊随访管理的430例脑卒中偏... 详细信息

目的编制并检验脑卒中护理门诊偏瘫患者康复需求评估量表,为有效评估患者康复需求提供适用性测评工具。方法采用文献分析、半结构访谈、专家函询、预调查形成初始量表。对重庆市3所三级甲等医院脑卒中护理门诊随访管理的430例脑卒中偏瘫患者开展调查,检验量表信效度,形成正式量表。结果康复需求评估量表包括5个维度31个条目,探索性因子分析提取5个公因子,累积方差贡献率为67.735%;总量表的内容效度为0.923;量表总的Cronbach'sα系数为0.960,折半信度为0.940,重测信度为0.953。结论脑卒中护理门诊偏瘫患者康复需求评估量表具有良好的信效度,可用于脑卒中护理门诊出诊护士评估偏瘫患者的康复需求。

关键词：脑卒中偏瘫护理门诊康复需求量表信度效度

Integrated water risk early warning framework of the semi-arid transitional zone based on the water environmental carrying capacity (WECC)

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Journal of Arid Land 2023年第2期15卷 145-163页

作者： XIE Yuxi zeng Weihua QIU Jie School of Environment Beijing Normal UniversityBeijing 100875China Northwest Institute of Plateau Biology Chinese Academy of SciencesQinghai 810008China Nanjing Institute of Environmental Sciences Ministry of Ecology and EnvironmentNanjing 210042China

Water risk early warning systems based on the water environmental carrying capacity(WECC)are powerful and effective tools to guarantee the sustainability of *** work on the early warning of WECC has mainly concerned the comprehensive evaluation of the status quo and lacked a quantitative prejudgement and warning of future *** addition,existing quantitative methods for short-term early warning have rarely focused on the integrated change trends of the early warning *** the periodicity of the socioeconomic system,however,the water environmental system also follows a trend of cyclical ***,it is meaningful to monitor and use this periodicity for the early warning of the *** this study,we first adopted and improved the prosperity index method to develop an integrated water risk early warning *** also constructed a forecast model to qualitatively and quantitatively prejudge and warn about the development trends of the water environmental *** selected the North Canal Basin(an essential connection among the Beijing-Tianjin-Hebei region)in China as a case study and predicted the WECC in 25 water environmental management units of the basin in 2018–*** found that the analysis of the prosperity index was helpful in predicting the WECC,to some *** result demonstrated that the early warning system provided reliable prediction(root mean square error of 0.0651 and mean absolute error of 0.1418),and the calculation results of the comprehensive early warning index(CEWI)conformed to the actual situation and related research in the river *** 2008 to 2023,the WECC of most water environmental management units in the basin had improved but with some spatial differences:the CEWI was generally poor in areas with many human disturbances,while it was relatively good in the upstream regions with higher forest and grass covers as well as in the downstream areas with larger water ***,through a sensitiv

关键词： water risk early warning system water environmental carrying capacity prosperity index water management North Canal(Beiyun River)

A Looped Functional Method to Design State Feedback Controllers for Lurie Networked Control Systems

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IEEE/CAA Journal of Automatica Sinica 2023年第4期10卷 1093-1095页

作者： Wei Wang Hong-Bing zeng The authors are with the School of Electrical and Information Engineering Hunan University of TechnologyZhuzhou 412007China

Dear Editor,This letter deals with the stabilization of Lurie networked control systems with network-induced delays(NID).By constructing a twosided looped Lyapunov functional,a sufficient condition is derived to ensure the absolute stability of the resultant closed-loop system under a state feedback ***,based on this condition,a cone complementary linearisation(CCL)iterative algorithm is presented to design state feedback *** is shown via a numerical example that the proposed method can deliver less conservative results as well as fewer iterations if compared with existing ones.

关键词： network sided stabilization

More permutation polynomials with differential uniformity six

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Science China(Information Sciences) 2018年第3期61卷 223-225页

作者： Ziran TU Xiangyong zeng Zhiyong ZHANG School of Mathematics and Statistics Henan University of Science and Technology Faculty of Mathematics and Statistics Hubei Key Laboratory of Applied Mathematics Hubei University School of Information Engineering Henan University of Science and Technology

Differential analysis is one of the most important attacks threatening iterated block *** resist against differential attacks[1],the multioutput Boolean functions used in designing Sboxes should have low differential *** a positive integer n,the lowest differential uniformity of the functions from the finite field F;(for a prime power q,F;denotes the finite field with

关键词： More permutation polynomials with differential uniformity six

Editorial for special issue on photonics based on two-dimensional noncarbon materials

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Chinese Optics Letters 2018年第2期16卷 1-2页

作者： Han Zhang Haibo zeng Qiaoliang Bao Shenzhen University China Nanjing University of Science and Technology China Monash University Australia

Scientists are in the constant search of novel materials,or innovative applications of existing materials to solve problems we face in our everyday *** graphene,the two-dimensional（2D）form of carbon,has been a star player for the past decade,there is a significant shift towards other noncarbon materials in recent *** from the large family of transition metal dichalcogenides（TMDs）,mono-elemental materials,such as phosphorene,arsenene,antimonene.

关键词： Editorial for special issue on photonics based on two-dimensional noncarbon materials