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After verification of FEM, 45 species of 15 series are computed. The major parameters including slippage coefficients, pretensions forces, dimensions of angles, arrangement of bolts, connection method among angle, beam web, column flange, and so on are studied. Some important conclusions are drawn.At last, Advices for seismic design based on tests and FEM analysis are presented at last. The study is rather comprehensive and systematic, and the conclusions. can be useful for revising design code, guiding design of engineering, and provide good basis for further to study behavior of shear beam-to-column connections.
主要研究了摩擦系数、螺栓预拉力、螺栓线到与柱连接角钢肢背的距离、螺栓直径及级别、梁长、螺栓排列布置、梁高、柱翼缘厚度、角钢厚度、角钢长度、梁腹板只与角钢肢尖相焊接、钢材强度、角钢与梁柱均栓接、角钢与柱焊接与梁栓接、角钢与梁柱均焊接等参数对腹板双角钢梁柱连接滞回性能的影响,得出了一系列重要的结论。
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In summary, the 3D visual simulation system for relay based on the OpenGL is developed in the foundation of research on its essential technologies in this paper, and the system can not only use for direct current rapping relay design directly but also will provide the powerful support for 3D visual simulation technology widely applied in relay industry.
综上所述,本文在较深入的研究了基于OpenGL的继电器三维可视化仿真系统的理论及关键技术基础上,开发了基于OpenGL的三维可视化仿真系统3DJDQCAD,其研究成果不仅可直接用于直流拍合式继电器的开发设计,而且也将为三维可视化仿真技术在继电器行业中全面应用提供有力支持。
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Canberra's decision to extend its review period for the investment did provide time for public hostility to build and eventually, as commodity prices rallied, for Rio's rising share price to make the deal less attractive to its board.
堪培拉延长投资审查期的决定,确实为公众敌意的升温提供了时间,而且随着大宗商品价格上涨,力拓股价也出现上涨,最终使这笔交易对该公司董事会的吸引力有所消褪。
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In order to provide the theoretical basis for design of waterproofing and drainage system for subsea tunnel in China,some key problems for design of waterproofing and drainage system were studied based on Xiamen Subsea Tunnel.
为了对中国海底隧道防排水系统设计提供理论依据,针对厦门海底隧道防排水系统设计问题进行了研究。
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In a database the concept of an example might change along with time which is known as concept drift When the concept drift the classification model built by use of old data is unsuitable for classify new data Therefore concept drift has become a hot issue in data mining in recent years Although many algorithms had been proposed to resolve this problem they can not provide users with the reason of concept drift However a user might be very interested in such rules For example doctors want to find what makes disease change; researchers want to know the reason of the variety of the weather; and decision makers would like to understand why a customer's shopping habit change In this thesis we propose a Concept Drift Rule mining Tree called CDR-Tree to solve this problem CDR-Tree can not only find the rule of concept drift also build the prediction model for both old and new data at the same time
无论在大型资料库或现实生活中,同一资料样本的概念有可能会随著时间的递移而改变,也就是产生所谓的概念漂移。当样本发生概念漂移时,由旧有资料所建构的分类模组将不再适用於预测新获得的资料,因此,近年来概念漂移已成为资料探勘中一项热门的研究议题。虽然已有?多学者提出不同的技术来解决概念漂移的问题,但是这些方法都是利用修正或重建的方式来产生适合新资料的预测模组,并无法提供造成概念漂移的原因。然而对使用者而言,其感兴趣的可能正是这些引起概念漂移的规则,如医生可能想了解引起疾病变化的主因、学者会想要知道气候转变的规则、或是决策者想找出顾客购物习惯改变的因素等。因此,本论文提出概念漂移规则探勘树( Concept Drift Rule mining Tree ),简称CDR-Tree,来解决这个问题。CDR-Tree不但能探测出造成概念漂移的主要原因,亦能同时建立新旧资料的预测模组以供决策者运用使用。
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After that, the ECE R95 side impact crash simulation is carried out to analyze the deformation, energy absorption, response of velocity and acceleration of the car and the dummy. The results show the influence of energy absorption to the occupant safety in the side impact crash. Above result of the simulation for the side impact crash of vehicle may provide important information for traffic accident analysis and useful reference for designers.
之后,论文按照ECE R95法规进行汽车有限元模型的侧面碰撞模拟,对模拟计算结果显示的汽车侧面碰撞的变形、能量吸收状况以及驾驶室内假人的速度、加速度等的动态反应进行探讨与分析,由此总结出汽车侧面碰撞时汽车吸能状况对假人承受撞击后的损伤的影响,以上分析结果可为处理侧面碰撞交通事故提供依据,同时可用于将来汽车安全设计的参考。
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In the construction site selection, the implementation of our earthquake-proof standards, the structures of rationality have made strict demands, while planning for the earthquake disaster prevention updates, accelerate the pace of implementation for the rehabilitation of the earthquake disaster to provide scientific basis for decision-making.
在建筑场地的选择、抗震设防标准的执行、建筑结构的合理性等方面均作了严格要求,同时开展抗震防灾规划的修编工作,加快实施步伐,为恢复重建中的抗震防灾决策提供科学的依据。
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This article integrates related articles in the literature with a case analysis by reporting on an individualized nursing intervention for a child with cellulites induced by phagocyte deficiency. It is hoped that recommendations provide a valuable clinical reference for nursing colleagues to care for children suffering from phagocyte deficiency.
本文藉由相关文献查证,并以一位吞噬细胞缺乏症的学龄前期儿童发生蜂窝性组织炎之伤口护理过程,与学理做比较分析,并提出符合病童的独特性护理,希望能藉此文提供临床护理同仁在照护吞噬细胞缺乏症病童时之重要参考。
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We always concentre packaging technology and have set up own packaging technology sector for research trials International migrants moving to the common transport furniture, piano, packaging products to "safety first" as the standard re-design, the formation of a mature package of security technology, transport routes and delivery processes, for many years to maintain "0" accident rate for An immigrant living in different places to provide the primary security.
快洲物流专业为移民提供个人物品运输服务已10余年经验,潜心研究物品包装技术,并建立了自己的包装技术研究实验室,对移民国际搬家运输中常见的家具,钢琴,工艺品的包装以&安全第一&为标准重新设计,形成了安全成熟的包装技术、运输通道和送货流程,多年保持&0&事故率,为移民异地安家生活提供了首要的安全保障。
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To effectively provide diagnosing and treatment of pig disease for culturists, the expert system for diagnosing and treatment of pig diseases was developed with PAID4.0, which is an all-purposed platform for agricultural expert system development.
为了有效地向养殖户提供猪病诊治技术,将人工智能、多媒体等信息技术与农业技术有机结合,开发出基于PAID4.0开发平台的猪病诊治专家系统。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。