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HIERARCHIC GREY QUASI-PREFERRED ANALYSIS MODEL AND ITS APPLICATION
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作者 李炳军 刘思峰 任盈盈 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2005年第1期78-83,共6页
The grey quasi-preferred analysis (GQPA) is one of important methods for realizing system analysis to conquer the limitations of the existing GQPA model, without any considerations to the difference of the different b... The grey quasi-preferred analysis (GQPA) is one of important methods for realizing system analysis to conquer the limitations of the existing GQPA model, without any considerations to the difference of the different behavioral factor′s importance. It could not be used to analyze the complex system with multi-hierarchy correlation factors, the weighted synthetic method for calculating abstract incidence degrees between the system beha-vioral characteristics and correlative factors in different hierarchies is given out,and the hierarchic grey quasi-preferred analysis (HGQPA) model is established. The effectiveness of the HGQPA model is tested by the scientific-technical system of Jiangsu Province. The depth and the range of the application of GQPA are developed, and the HGQPA model is regarded as a new approach to systemically analyze the complex systems with multi-hierarchy correlation factors. 展开更多
关键词 multi-hierarchy quasi-preferred analysis MODEL grey system
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钻井液设计专家系统规则库的检测算法 被引量:3
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作者 李建 习文风 《计算机工程与应用》 CSCD 北大核心 2020年第4期256-261,共6页
钻井液设计专家系统规则库的规模随着规则的更新与日俱增,对规则库的维护工作变得日益重要。针对规则库的从属、冗余、环路和冲突等问题提出一种检测算法。引入有向超图来表示规则库中的规则;用邻接矩阵表示该有向超图,并计算出它的可... 钻井液设计专家系统规则库的规模随着规则的更新与日俱增,对规则库的维护工作变得日益重要。针对规则库的从属、冗余、环路和冲突等问题提出一种检测算法。引入有向超图来表示规则库中的规则;用邻接矩阵表示该有向超图,并计算出它的可达矩阵和总可达矩阵;用总可达矩阵对规则库进行检测,找出规则库中存在的问题。实验表明,与已有的检测算法相比,该算法能够有效地检测出规则库中存在的问题,同时构建的邻接矩阵规模较小,在保证算法简洁的基础上提高了效率。 展开更多
关键词 专家系统 规则库 有向超图 邻接矩阵 可达矩阵 总可达矩阵
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Asymptotic Behavior on Cox Risk Process Perturbed by Diffusion
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作者 王慧丽 史忠科 任志平 《Chinese Quarterly Journal of Mathematics》 CSCD 2009年第3期325-332,共8页
In this paper, the asymptotic behavior on the Cox risk model perturbed by diffusion is studied. The sufficient and necessary conditions for the process when it weakly convergence to Normal distribution and th.e rate o... In this paper, the asymptotic behavior on the Cox risk model perturbed by diffusion is studied. The sufficient and necessary conditions for the process when it weakly convergence to Normal distribution and th.e rate of weakly convergence are received. Finally discuses the exponential upper bound for ruin probability of this risk model. 展开更多
关键词 Cox process weakly compact at infinity weak convergence convergence rate
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柿广翅蜡蝉生物学特性及防治初报 被引量:12
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作者 刘永生 张清良 《亚热带植物科学》 2001年第2期39-41,共3页
柿广翅蜡蝉近十年来已成为湖北省主要果树害虫,寄主范围与为害程度有逐年扩大的趋势。成、若虫均吸汁为害多种果树;一年二代,以卵在寄主的枝条皮下越冬。在1~3龄若虫期用药剂防治,能有效控制柿广翅蜡蝉。
关键词 柿广翅蜡蝉 生物学特性 防治 果树害虫 形态特征
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Methodology of the Relationship between Bioethics, Philosophy, and Law
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作者 Natalia Sedova 《Journal of Philosophy Study》 2013年第7期669-675,共7页
One can distinguish three levels in the integrative unity of knowledge and norms (assessments), which is termed bioethics. The first level is theoretical. It is connected with the facts and truths. The second level ... One can distinguish three levels in the integrative unity of knowledge and norms (assessments), which is termed bioethics. The first level is theoretical. It is connected with the facts and truths. The second level deals with establishing of certain standards and rules of conduct, with the monitoring of their implementation and the assessment of the results of implementation/violation of norms. The third level is associated with individual behavior, formed on the basis of relevant knowledge (or lack of it, as is evident from the table), and the rules governing its application. Theoretical Bioethics is an integral part of Philosophy---the practical Bioethics is directly related to Law and applied Bioethics deals with the personal standards of specific behavior in concrete situations. Social need for regulatory control of any activity with living entities has led to rapid development of practical Bioethics, while its philosophical content developed more slowly. This creates a conflict of norms and values, hampering the adoption of individual decisions now in the field of applied Bioethics. Deontologization of Bioethics can lead to the fact that it will lose its philosophical content and become a specific area of Law. This, in turn, leads to the dehumanization of Bioethics. It is therefore necessary to conduct a methodological analysis of the relationship of Philosophy, Bioethics and Law, the results of which will focus the researchers on the synchronization of the axiological, praxeological and ethical components of scientific research in order to preserve the intellectual integrity of Bioethics. 展开更多
关键词 theoretical bioethics practical bioethics applied philosophy law AXIOLOGY DEONTOLOGY methodologicalcrossing
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保健饮料银杏枣汁的生产工艺 被引量:5
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作者 马芳芳 《食品工业科技》 CAS CSCD 北大核心 2000年第3期57-58,共2页
具有保健作用的银杏叶提取物 ( EGB)、红枣、枸杞子和蜂蜜制成了枣香宜人、酸甜适口、对心脑血管疾病、老年痴呆症、降低血压等有保健作用的饮料。
关键词 EGB 红刺 枸杞子 蜂蜜 保健饮料 生产工艺
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丙烯酸-2,4,6-三硝基苯乙酯的合成及热分解 被引量:2
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作者 刘强强 金波 +3 位作者 彭汝芳 舒远杰 楚士晋 董海山 《含能材料》 EI CAS CSCD 北大核心 2012年第5期579-582,共4页
以TNT、甲醛为原料,在弱碱性条件下反应合成得到2,4,6-三硝基苯乙醇(PicCH2CH2OH);PicCH2CH2OH在浓硫酸催化下和丙烯酸在甲苯中回流反应24h,合成得到丙烯酸-2,4,6-三硝基苯乙酯,产率为62%。采用紫外可见光谱(UV-Vis)、核磁共振氢谱(1HN... 以TNT、甲醛为原料,在弱碱性条件下反应合成得到2,4,6-三硝基苯乙醇(PicCH2CH2OH);PicCH2CH2OH在浓硫酸催化下和丙烯酸在甲苯中回流反应24h,合成得到丙烯酸-2,4,6-三硝基苯乙酯,产率为62%。采用紫外可见光谱(UV-Vis)、核磁共振氢谱(1HNMR)、红外光谱(FTIR)、质谱(MS)以及元素分析等对产物结构进行了表征。利用热重分析(TG)对产物热稳定性进行了研究,采用Kissinger方法和Ozawa方法计算其热分解活化能Ea分别为99.78,102.96kJ·mol-1。 展开更多
关键词 有机化学 2 4 6-三硝基苯乙醇 丙烯酸-2 4 6-三硝基苯乙酯 热稳定性 活化能
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eBay平台吹响中国汽配品牌集结号,汽配出海前景广阔
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作者 俞庆华 《汽车零部件》 2019年第12期36-36,共1页
2019年12月3日,第十五届法兰克福上海国际汽车零配件、维修检测诊断设备及汽车用品展览会在上海国家会展中心盛大开幕,此次展会吸引了来自18个国家和地区的超过6000家参展企业,汇聚了大量汽配龙头企业和品牌。作为唯一参展的跨境出口电... 2019年12月3日,第十五届法兰克福上海国际汽车零配件、维修检测诊断设备及汽车用品展览会在上海国家会展中心盛大开幕,此次展会吸引了来自18个国家和地区的超过6000家参展企业,汇聚了大量汽配龙头企业和品牌。作为唯一参展的跨境出口电商平台,eBay召集优质卖家开启“灯塔计划”观展采购活动,不仅有来自中国的卖家,更有来自泰国、马来西亚的国外卖家加入eBay“灯塔计划”国际采购团。 展开更多
关键词 汽车用品 采购团 汽车零配件 采购活动 跨境出口电商 EBAY 法兰克福 龙头企业
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Exploring Factors Affecting Farmers' Implementation of Wildlife-friendly Farming on Sado Island, Japan 被引量:5
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作者 中村慧 柘植隆宏 +2 位作者 大久保悟 武内和彦 西川潮 《Journal of Resources and Ecology》 CSCD 2014年第4期370-380,共11页
Implementing wildlife-friendly farming (WFF) practices is a sound approach to sustain ecological restoration of farmland. The aims of the study were to explore factors affecting farmers’ implementation of WFF pract... Implementing wildlife-friendly farming (WFF) practices is a sound approach to sustain ecological restoration of farmland. The aims of the study were to explore factors affecting farmers’ implementation of WFF practices on Sado Island, Japan and to consider the policy implications of disseminating such practices. All 5010 farming households on Sado Island, who are distributing rice to Japan Agricultural Cooperatives (JA), were surveyed. In total, 2231 households responded to the questionnaire (response 44.5%). By comparing the attitudes, beliefs, and attributes of non-certiifed versus certiifed farmers, we identiifed key factors affecting farmers’ implementation of WFF practices. Compared with non-certified farmers, certified farmers: (i) showed a greater interest in biodiversity and the ifnancial beneifts of WFF; (i) had a larger number of certiifed farmer friends; (ii) felt many more pressures and expectations from consumers, in particular; and (iv) were not hampered by bad labor or farmland conditions when implementing WFF practices. To further disseminate WFF practices in Sado, we suggest that the information on the effectiveness of WFF on paddy ifeld biodiversity is used in public education, and opportunities for interchanging opinions are set up between non-certiifed and certiifed farmers, as wel as between farmers and consumers. 展开更多
关键词 environmentally friendly farming theory of planned behavior Globally-Important Agricultural HeritageSystems (GIAHS) crested ibis ECO-LABEL
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