检索结果-南通市图书馆

Survey of the research on dynamic weapon-target assignment problem

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2006年第3期17卷 559-565页

作者： Cai Huaiping Liu Jingxu chen yingwu Wang Hao School of Information System & Management National Univ. of Defense TechnologyChangsha 410073 P. R. China

The basic concepts and models of weapon-target assignment （WTA） are introduced and the mathematical nature of the WTA models is also analyzed. A systematic survey of research on WTA problem is provided. The present research on WTA is focused on models and algorithms. In the research on models of WTA, the static WTA models are mainly studied and the dynamic WTA models are not fully studied in deed. In the research on algorithms of WTA, the intelligent algorithms are often used to solve the WTA problem. The small scale of static WTA problems has been solved very well, however, the large scale of dynamic WTA problems has not been solved effectively so far. Finally, the characteristics of dynamic WTA are analyzed and directions for the future research on dynamic WTA are discussed.

关键词： military operational research dynamic weapon-target assignment survey firepower assignment decision making combination optimization.

Optimal Model of Continuous Knowledge Transfer in the Big Data Environment

在线全文

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2018年第7期116卷 89-107页

作者： Chuanrong Wu Evgeniya Zapevalova yingwu chen Deming Zeng FrancisLiu School of Economy and Management Changsha University of Science&TechnologyChangsha410114P.R.China College of Information System and Management National University of Defense TechnologyChangsha410073China School of Business Administration Hunan UniversityChangsha410082China LMBA Universite de Bretagne-SUD56017 VannesFrance

With market competition becoming fiercer,enterprises must update their products by constantly assimilating new big data knowledge and private knowledge to maintain their market shares at different time points in the big data ***,there is mutual influence between each knowledge transfer if the time interval is not too *** is necessary to study the problem of continuous knowledge transfer in the big data *** on research on one-time knowledge transfer,a model of continuous knowledge transfer is presented,which can consider the interaction between knowledge transfer and determine the optimal knowledge transfer time at different time points in the big data *** experiments were performed by adjusting several *** experimental results verified the model’s validity and facilitated conclusions regarding their practical application *** experimental results can provide more effective decisions for enterprises that must carry out continuous knowledge transfer in the big data environment.

关键词： Big data knowledge transfer optimization model simulation experiment different time points

Time Optimization of Multiple Knowledge Transfers in the Big Data Environment

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2018年第3期54卷 269-285页

作者： Chuanrong Wu Evgeniya Zapevalova yingwu chen Feng Li School of Economy and Management Changsha University of Science&TechnologyChangsha410114P.R.China College of Information System and Management National University of Defense TechnologyChangsha410073China School of Computer&Communication Engineering Changsha University of Science&TechnologyChangsha410114China

In the big data environment, enterprises must constantly assimilate big dataknowledge and private knowledge by multiple knowledge transfers to maintain theircompetitive advantage. The optimal time of knowledge transfer is one of the mostimportant aspects to improve knowledge transfer efficiency. Based on the analysis of thecomplex characteristics of knowledge transfer in the big data environment, multipleknowledge transfers can be divided into two categories. One is the simultaneous transferof various types of knowledge, and the other one is multiple knowledge transfers atdifferent time points. Taking into consideration the influential factors, such as theknowledge type, knowledge structure, knowledge absorptive capacity, knowledge updaterate, discount rate, market share, profit contributions of each type of knowledge, transfercosts, product life cycle and so on, time optimization models of multiple knowledgetransfers in the big data environment are presented by maximizing the total discountedexpected profits (DEPs) of an enterprise. Some simulation experiments have beenperformed to verify the validity of the models, and the models can help enterprisesdetermine the optimal time of multiple knowledge transfer in the big data environment.

关键词： Big data knowledge transfer time optimization DEP simulation experiment

效率、安全与增长:产业发展多重目标的矛盾与协调

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

经济论坛 2024年第6期 39-51页

作者：陈英武张睿孙文杰江苏省经济和信息化研究院江苏南京210003 南京大学经济学院江苏南京210008 南京审计大学经济学院江苏南京211815

一国或地区的产业发展经常追求效率、安全与增长等多重目标,这三者既有统一性也有矛盾性,难以同时兼顾,形成产业发展的“不可能三角”。理论研究表明:如果选择效率与增长的组合,则难以兼顾产业安全;选择安全与增长的组合,则难以兼顾分... 详细信息

一国或地区的产业发展经常追求效率、安全与增长等多重目标,这三者既有统一性也有矛盾性,难以同时兼顾,形成产业发展的“不可能三角”。理论研究表明:如果选择效率与增长的组合,则难以兼顾产业安全;选择安全与增长的组合,则难以兼顾分工效率;选择效率与安全的组合,则难以兼顾经济增长。空间及动态分析进一步表明,几种组合的选择因为形势变化在不同国家或地区而变得更为复杂。因此,不同国家或地区需因时因地制宜,根据自身条件在不同时期选择不同的应对策略,按照“动态优先目标排序”原则,力求更好统筹效率、安全与增长,促进本国或本地区产业更加平稳健康发展。

关键词：效率安全增长 “不可能三角”假说动态优先目标排序

在线全文

学校读者我要写书评

暂无评论

超大埋深软岩隧道平行导洞合理超前距离研究

隧道建设（中英文） 2024年第S01期44卷 1-7页

作者：谭忠盛张宝瑾马建华陈应武赵金鹏范晓敏王雪冰北京交通大学城市地下工程教育部重点实验室北京100044 中国铁路昆明局集团有限公司滇西铁路建设指挥部云南大理671000

为解决滇藏铁路丽香线哈巴雪山隧道施工过程中产生的大变形问题,采用数值模拟、现场监测的方法,对哈巴雪山隧道不同平行导洞超前距离下隧道变形及正洞区域应力进行研究,提出平行导洞的合理超前距离。研究结果表明:1)哈巴雪山隧道平行导... 详细信息

为解决滇藏铁路丽香线哈巴雪山隧道施工过程中产生的大变形问题,采用数值模拟、现场监测的方法,对哈巴雪山隧道不同平行导洞超前距离下隧道变形及正洞区域应力进行研究,提出平行导洞的合理超前距离。研究结果表明:1)哈巴雪山隧道平行导洞超前正洞的距离应设定为100 m,此时平行导洞对正洞区域的应力释放效果已达90%以上。2)平行导洞的设置使正洞拱顶沉降减小6.92%,上台阶水平收敛减小14.58%,下台阶水平收敛减小10.8%。由此可知,平导超前开挖能够减小正洞支护变形,对正洞水平收敛的控制效果大于拱顶沉降。

关键词：超大埋深软岩隧道应力释放技术平行导洞超前距离

Ambiguous nucleus regulates the proliferation and percentage of T lymphocytes in peripheral blood

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2011年第35期6卷 2761-2767页

作者： Wei Wang Wei chen yingwu Mei Bin Guo Zhanqing Yang Shoupeng Fu Zhanpeng Yue Juxiong Liu College of Animal Science and Veterinary Medicine Jilin University Changchun 130062 Jilin Province China

The aim of this study was to examine the immunomodulatory role of the unilateral ambiguous nucleus （Amb）. We performed electrical stimulation of the unilateral Amb, electrical stimulation of the left parietal cortex and the lateral hypothalamus following unilateral Arab lesion, as well as microinjection of acetylcholine chloride and hemicholine-3 into the unilateral Amb, and electrical stimulation of the unilateral Amb after injection of atropine, mecamylamine, propranolol, and phentolamine. Results showed that the number and proliferation of peripheral blood T lymphocytes were increased after electrical stimulation of the unilateral Arab. The cholinergic neurons in the Amb released choline substances to alter cellular immunity, thus confirming that the Amb mediates the neuro-immunomodulatory process.

关键词： ambiguous nucleus electrical stimulation T lymphocytes proliferation neuroimmune regulation parasympathetic nervous system

非煤系地层隧道高压有害气体防突施工技术研究

在线全文

学校读者我要写书评

暂无评论

重庆建筑 2024年第4期23卷 69-72页

作者：全斐苏培东赵宇陈应武赵春杰中国中铁十局集团有限公司山东济南250000 西南石油大学地球科学与技术学院四川成都610500 昆明局集团有限公司滇西铁路建设指挥部云南大理671000

大临铁路红豆山隧道穿越非煤系地层遇高压气囊式有害气体突出,这是全国铁路隧道建设史上首例高压非煤气体突出事件。该文总结了非煤系地层隧道高压有害气体突出的三种形式,研究了防突措施作用的三种机理和防突技术,设计了防突流程。研... 详细信息

大临铁路红豆山隧道穿越非煤系地层遇高压气囊式有害气体突出,这是全国铁路隧道建设史上首例高压非煤气体突出事件。该文总结了非煤系地层隧道高压有害气体突出的三种形式,研究了防突措施作用的三种机理和防突技术,设计了防突流程。研究表明,物探、超前地质钻探和有害气体检测相结合是评价和预测有害气体突出危险性的有效手段;提出了钻孔排放、高压注水结合的防突措施;构建了超前地质钻探、有害气体检测和监测、通风管理和应急管理的4大安全措施。研究成果在红豆山隧道中得到了全面应用,保障了施工人员的安全,可为类似复杂地质条件下有害气体隧道施工提供借鉴。

关键词：非煤系地层隧道高压有害气体防突施工技术

节水型流域建设路径探究——以广东省东江流域为例

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

广东水利水电 2024年第3期 71-76,104页

作者：肖耿锋洪昌红黄本胜刘达成忠理陈颖悟广东省水利水电科学研究院广州510635 广东省水动学力应用研究重点实验室广州510635 广东省东江流域管理局广东惠州516000

为了探索节水型流域建设路径,并将广东省东江流域建设为我国首个节水型流域典范,该文通过分析东江流域水资源开发利用情况、用水节水特征和节水潜力,对比东江流域与钱塘江流域、闽江流域之间水资源节约集约利用情况,提出“1245”节水型... 详细信息

为了探索节水型流域建设路径,并将广东省东江流域建设为我国首个节水型流域典范,该文通过分析东江流域水资源开发利用情况、用水节水特征和节水潜力,对比东江流域与钱塘江流域、闽江流域之间水资源节约集约利用情况,提出“1245”节水型流域建设路径。结果显示:①东江流域存在农业和生活用水水平较低、地区节水水平不均衡等问题,流域农业、工业和服务业均存在较大节水潜力;②流域内河源市和惠州市需继续推进节水型城市和县域节水型社会建设,流域内各地市需持续强化农业、火电行业等重点节水举措。通过分析东江流域节水型社会建设情况并探究“1245”节水型流域建设路径,能有效为节水型流域建设提供借鉴。

关键词：东江流域节水型社会节水型城市县域节水型社会节水型流域典范

A Project Risk Ranking Approach Based on Set Pair Analysis

在线全文

学校读者我要写书评

暂无评论

工程科学（英文版） 2006年第1期4卷 89-93页

作者： Gao Feng chen yingwu School of Information System and Management National University of Defense Technology Changsha 410073

Set Pair Analysis (SPA) is a new methodology to describe and process system uncertainty. It is different from stochastic or fuzzy methods in reasoning and operation, and it has been applied in many areas recently. In this paper, the application of SPA in risk ranking is presented, which includes review of risk ranking, introduction of Connecting Degree (CD) that is a key role in SPA., Arithmetic and Tendency Grade (TG) of CDs, and a risk ranking approach proposed. Finally a case analysis is presented to illustrate the reasonability of this approach. It is found that this approach is very convenient to operate, while the ranking result is more comprehensible.

关键词：风险等级集对分析连接程度风险管理信息管理