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基于ArcSDE和SQL Server的空间数据库安全访问控制

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太原科技 2009年第10期 79-80,82页

作者：贺瑞喜李向新李毓昆明理工大学云南昆明650093

地理信息系统(GIS)越来越广泛地应用于各个领域,而空间数据库的安全问题必须引起足够的重视。在利用ArcGIS9.3,ArcSDE9.3,SQL Server建立的企业级GIS系统的基础上建立基于视图的访问控制模型,实现了对基于ArcSDE和SQLServer建立的空间... 详细信息

地理信息系统(GIS)越来越广泛地应用于各个领域,而空间数据库的安全问题必须引起足够的重视。在利用ArcGIS9.3,ArcSDE9.3,SQL Server建立的企业级GIS系统的基础上建立基于视图的访问控制模型,实现了对基于ArcSDE和SQLServer建立的空间数据库的安全访问控制。

关键词： ArcSDE SQL Server 空间数据库

Chinese guideline for the application of rectal cancer staging recognition systems based on artificial intelligence platforms (2021 edition)

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Chinese Medical Journal 2021年第11期134卷 1261-1263页

作者： Yuan Gao Yun Lu Shuai li Yong Dai Bo Feng Fang-Hai Han Jia-Gang Han Jing-Jing He xin-xiang li Guo-Le lin Qian liu Gui-Ying Wang Quan Wang Zhen-Ning Wang Zheng Wang Ai-Wen Wu Bin Wu Ying-Chi Yang Hong-Wei Yao Wei Zhang Jian-Ping Zhou Ai-Min Hao Zhong-Tao Zhang Colorectal Surgery Group of the Surgery Branch in the Chinese Medical Association Beihang University State Key Laboratory of Virtual Reality Technology and Systems Department of General Surgery The Affiliated Hospital of Qingdao UniversityQingdaoShandong 266555China Beihang University State Key Laboratory of Virtual Reality Technology and Systems Beijing 100191China Department of General Surgery Qilu Hospital of Shandong UniversityJinanShandong 250012China Department of General Surgery Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Shanghai Minimally Invasive Surgery Center Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Department of Gastrointestinal Surgery Sun Yat-sen UniversityGuangzhouGuangdong 510120China Department of General Surgery Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Institute of International Law Chinese Academy of Social SciencesBeijing 100732China Department of Colorectal Surgery Fudan University Shanghai Cancer CenterShanghai 201321China Department of Oncology Shanghai Medical CollegeFudan UniversityShanghai 201321China Department of General Surgery Peking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100730China National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100021China Third Hospital of Hebei Medical University ShijiazhuangHebei 050051China Department of Colon and Rectum Surgery The First Hospital of Jilin UniversityChangchunJilin 130021China Department of Surgical Oncology and General Surgery Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal TumorsMinistry of EducationThe First Affiliated Hospital of China Medical UniversityShenyangLiaoning 110001China Department of Gastrointestinal Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Unit III&Ostomy Service Key laboratory of Carcinogenesis and Translational Research(Ministry of Education)Gastrointest

Development and Application of Artificial Intelligence Recognition Systems in Rectal Cancer Staging Whether for surgical treatment or for neoadjuvant chemoradiotherapy,imaging evaluation has become an important basis to perform the treatment plans.[1]The reading of imaging results requires a large number of experienced radiologists to complete,but shortages and uneven distributions of personnel cause delays and biases in imaging ***,independent research and development of automatic recognition systems of rectal cancer staging based on artificial intelligence(AI)platforms aim to partially replace practitioners’work and achieve rapid and accurate identification of rectal cancer staging.

关键词： staging artificial replace

Design and experimental study of a new flapping wing rotor micro aerial vehicle

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Chinese Journal of Aeronautics 2020年第12期33卷 3092-3099页

作者： xin DONG Daochun li Jinwu xiang Ziyu WANG School of Aeronautic Science and Engineering Beihang UniversityBeijing 100083China

A three-wing Flapping Wing Rotor Micro Aerial Vehicle(FWR-MAV)which can perform controlled flight is introduced and an experimental study on this vehicle is presented.A mechanically driven flapping rotary mechanism is designed to drive the three flapping wings and generate lift,and control mechanisms are designed to control the pose of the FWR-MAV.A flight control board for attitude control with robust onboard attitude estimation and a control algorithm is also developed to perform stable hovering flight and forward flight.A series of flight tests was conducted,with hovering flight and forward flight tests performed to optimize the control parameters and assess the performance of the *** hovering flight test shows the ability of the FWR-MAV to counteract the moment generated by rotary motion and maintain the attitude of the FWR-MAV in space;the experiment of forward flight shows that the FWR-MAV can track the desired attitude.

关键词： Attitude estimation Flapping wing rotor Flight control Flight tests Micro aerial vehicle(MAV)

Decentralized fault diagnosis of discrete-event systems with unreliable sensors using linear temporal logic

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Science China(Information Sciences) 2025年第1期 322-341页

作者： Weijie DONG Shaoyuan li xiang YIN Key Laboratory of System Control and Information Processing Ministry of EducationDepartment of Automation Shanghai Jiao Tong University

In this paper,we investigate a decentralized diagnosis problem of a discrete-evnt system(DES) subject to unreliable sensors,where the sensor observations of local diagnosers may be non-deterministic as a result of possible *** studies on decentralized robust diagnosis can only deal with different types of sensor failures separately,e.g.,all sensors suffer from the same type of sensor failures such as intermittent sensor failures or permanent sensor ***,since sensors of different local diagnosers may face different external environments and have different internal characteristics,sensors corresponding to different local diagnosers may also have their own fault *** this paper,we propose a flexible framework of decentralized diagnosis for DES subject to unreliable sensors such that sensors of different local diagnosers are permitted to have different types of sensor *** this end,we extend the existing decentralized diagnosis framework to the case where there exist common sensors broadcasting their observations to all local *** apply linear temporal logic(LTL) to constrain infinite behaviors of private sensors of local diagnosers and common ***,a new notion of φ-codiagnosability is proposed as the necessary and sufficient condition for the existence of a decentralized diagnoser that works correctly under sensors,satisfying LTL-based sensor ***,we provide an effective approach to verify the φ-codiagnosability.

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Design and application of active sites in g-C_(3)N_(4)-based photocatalysts

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Journal of Materials Science & Technology 2020年第21期56卷 69-88页

作者： Yang li xin li Huaiwu Zhang Jiajie Fan Quanjun xiang State Key Laboratory of Electronic Thin Film and Integrated Devices School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu610054China College of Resources and Environment Huazhong Agricultural UniversityWuhan430070China College of Forestry and Landscape Architecture Key Laboratory of Energy Plants Resource and UtilizationMinistry of AgricultureKey Laboratory of Biomass Energy of Guangdong Regular Higher Education InstitutionsSouth China Agricultural UniversityGuangzhou510642China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450002China

With the development in photocatalysis field,photocatalysts have received increasing attention due to their important role in environmental pollution and energy *** a nonmetallic photocatalyst,graphitic carbon nitride(g-C3N4)has been widely recognized because of its excellent optical properties,low cost,and environment *** the g-C3N4 intrinsic frameworks,carbon atom tends to be the reducing active site,while nitrogen atom tends to be the oxidizing active site and reducing active site according to the difference of ***,the quantity and quality of these active sites are affected by many factors,including C N covalent bonds,surface properties,*** sites play an important role in photocatalysis;however,this role is not detailed in most *** this review,we proposed the following possible mechanisms of active sites in improving the photocatalytic activity of traditional g-C_(3)N_(4) based on its intrinsic:morphology regulation,carrier migration,surface active treatment,and substrate *** following factors affecting the active sites of g-C_(3)N_(4),including basal engineering and hybrid engineering,were also *** roles of these active sites in improving the photocatalytic activity of g-C_(3)N_(4)-based photocatalytic materials,including morphology regulation,surface treatment,heteroatom doping,and interfacial interaction,were also *** challenges and future development of g-C_(3)N_(4)-based photocatalysts that are rich in active surface sites were also *** review provides an in-depth understanding of g-C_(3)N_(4)-based photocatalysts.

关键词： Graphitic carbon nitride Active sites Photocatalyst Solar fuels

Necessary and Sufficient Conditions of Separability for Multipartite Pure States

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Communications in Theoretical Physics 2008年第5期49卷 1211-1216页

作者： li Da-Fa li xiang-Rong HUANG Hong-Tao li xin-xin Department of Mathematical Sciences Tsinghua University Beijing 100084 China Department of Mathematics University of California Irvine CA 92697-3875 USA Electrical Engineering and Computer Science Department University of Michigan Ann Arbor MI 48109 USA Department of Computer Science Wayne State University Detroit MI 48202 USA

In this paper we present a necessary and sufficient condition of separability for multipartite pure states and variants of it. These conditions are very simple and calculable, and they do not require Schmidt decomposition （for two subsystems） or tracing out operations. We also give a necessary condition for a local unitary equivalence class for a bipartite system in terms of the determinant of the matrix of amplitudes.

关键词： entanglement quantum computing separability

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关于金属应力腐蚀问题的分析

中国氯碱 2004年第3期 33-35页

作者：李向欣孙立那桂兰齐化集团有限公司黑龙江齐齐哈尔161033

通过对金属应力腐蚀破坏原理及氯碱行业中几种常用金属应力腐蚀破坏的分析介绍,为氯碱行业建设或改造中对设备、工艺管道的选材及防止应力腐蚀破坏提供参考。

关键词：氯碱金属应力腐蚀设备工艺管道选材

Effect of Potassium Addition on Coprecipitated Iron Catalysts for Fischer-Tropsch Synthesis Using Bio-oil-syngas

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Chinese Journal of Chemical Physics 2008年第2期21卷 141-150页

作者： Zhao-xiang Wang Ting Dong Tao Kan Quan-xin li Department of Chemical Physics Lab of Biomass Clean Energy University of Science and Technology of China Hefei 230026 China

The effects of potassium addition and the potassium content on the activity and selectivity of coprecipitated iron catalyst for Fischer-Tropsch synthesis （FTS） were studied in a fixed bed reactor at 1.5 MPa, 300 ℃, and contact time （W/F） of 12.5 gcath/mol using the model bio-oil-syngas of H2/CO/CO2/N2 （62/8/25/5, vol%）. It was found that potassium addition increases the catalyst activity for FTS and the reverse water gas shift reaction. Moreover, potassium increases the average molecular weight （chain length） of the hydrocarbon products. With the increase of potassium content, it was found that CH4 selectivity decreases and the selectivity of liquid phase products （C5＋） increases. The characteristics of FTS catalysts with different potassium content were also investigated by various characterization measurements including X-ray diffraction, X-ray photoelectron spectroscopy and Brunauer-Emmett-Teller surface area. Based on experimental results, 100Fe/6Cu/16Al/6K （weight ratio） was selected as the optimal catalyst for FTS from bio-oil-syngas. The results indicate that the 100Fe/6Cu/16Al/6K catalyst is one of the most promising candidates to directly synthesize liquid bio-fuel using bio-oil-syngas.

关键词： Bio-oil-syngas Fischer-Tropsch synthesis Potassium Coprecipitated iron

1954—2011年青海高原鼠疫耶尔森菌CRISPR基因分型及地区分布

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中华预防医学杂志 2017年第3期51卷 237-242页

作者：徐小青辛有全李翔张青雯杨晓艳金泳赵海红金星祁芝珍青海省地方病预防控制所青海省鼠疫防控及研究重点实验室西宁811602

目的研究青海高原鼠疫耶尔森菌（鼠疫菌）的CRISPR基因型（类群）及其地区分布.方法选取1954—2011年间青海高原境内各县/市从人鼠疫患者、宿主动物及媒介昆虫体内分离的鼠疫菌102株,采用传统的十二烷基磺酸钠裂解和苯酚-氯仿法提取... 详细信息

目的研究青海高原鼠疫耶尔森菌（鼠疫菌）的CRISPR基因型（类群）及其地区分布.方法选取1954—2011年间青海高原境内各县/市从人鼠疫患者、宿主动物及媒介昆虫体内分离的鼠疫菌102株,采用传统的十二烷基磺酸钠裂解和苯酚-氯仿法提取鼠疫菌DNA.分别对YPa、YPb和YPc等3个CRISPR位点进行PCR扩增、测序,然后将所测得CRISPR序列与文献最新报道的CRISPR Dictionary和NCBI数据库检索比对,以鉴定CRISPR spacer阵列.最后根据CRISPR spacer阵列的多态性对青海高原鼠疫菌进行基因分型,并描绘其地区分布特征.结果 102株鼠疫菌共发现40种spacer,包括YPa 22种、YPb 13种、YPc 5种,其中有5种新spacer,分别为a1＇、a103、a104、b4＇和b4＇;Ypa、Ypb和Ypc分别鉴定出16、10和5种不同的spacer阵列,新发现的spacer阵列为11种.102株鼠疫菌可被分为24个基因型,共归为9大CRISPR类群,分别为Cb4、Cb4＇、Cb2、Ca37、Ca7、Ca7＇、CaΔ5＇、Ca35＇和Cc3＇,其中Ca7、Ca7＇、CaΔ5＇、Ca35＇呈现出显著的聚集性特征：Ca7主要分布在玉树、囊谦、称多、杂多、治多和曲麻莱;Ca7＇分布于循化、同仁、泽库、同德、玛沁和贵南;CaΔ5＇集中在祁连、刚察、门源、大通;Ca35＇分布在湟源、海晏、刚察、天峻、德令哈、乌兰、都兰、兴海、共和和贵德.结论青海高原鼠疫菌CRISPR种群结构复杂,Ca7、Ca7＇、CaΔ5＇和Ca35＇是流行最普遍的主要种群,这些种群呈现显著的地区分布特征,可以利用CRISPR分型技术加强该地区鼠疫检测和防控工作.

关键词：耶尔森菌,鼠疫基因型青海高原

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