结构度
- 网络Structural degree;structuredness
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而投放的结构度,材料搭配的改变都会影响儿童的行为变化。
The structure of the input and material arrangement also had impact on their behavior .
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应力为k维指数分布强度为指数分布下结构可靠度的估计
Estimation of structural reliability for exponential strength and k exponential distribution stress
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结构可靠度分析的响应面法及其Matlab实现
Response surface method for structural reliability analysis and its realization with Matlab
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本文提出了一种新颖的、有效的对基于XML信息检索查询进行相关度打分的算法,该算法同时考虑了结构相关度和语义相关度。
A new and effective algorithm for relevance scoring is presented , which takes both structural and semantic information into account .
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提出了结构可靠度分析的变f序列响应面法和相应的收敛控制准则,并应用于非线性极限状态函数的可靠度计算。
A sequential response surface method with various f and a criterion of convergence are proposed for calculation of structural reliability analysis .
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独立同分布R-S(t)串并联系统的结构可靠度
The Reliable Probability for the Independent Identical Distribution R-S ( t ) Series and Parallel System
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采用Matlab语言构造响应面函数,进行结构可靠度计算,可充分发挥其矩阵运算功能及各种工具箱的作用,使编程效率大大提高,且语法简便,易于掌握。
The advantages of matrix operation and various toolboxes can be fully used if the response surface function is adopted and programmed in Matlab . It is very efficient and convenient to program in Matlab for the reliability calculation .
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用QR法分析,建立结构刚度矩阵和荷载向量方便,计算精度高,是一种经济有效实用的方法。
It is convenient to build stiffness matrixes and load vectors , high precision of calculation . It is an economical , effective and practical method .
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对弧焊机器人的故障树进行Monte-Carlo仿真研究,求解顶事件发生概率,与关键部件的概率重要度和结构重要度。
Next , the researcher carries out the Monte-Carlo simulation of fault tree of arc welding robot , probability of occurrence of top event , and probability importance and structural importance of key component .
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本文方法和MonteCarlo法的计算结果进行了比较,证明了这种方法在求解钢框架结构可靠度问题时的可行性,并为以后基于可靠性分析的优化设计方法研究提供有价值的参考。
Through compare the result of the PNET Method and Monte Carlo Method , It prove feasibility in calculate the reliability analysis of semi-rigid node steel frame . It is also provided availability reference based on the reliability optimizes design .
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针对一般地下施工结构可靠度理论方法的不足,提出人工神经网络结合重要性抽样的MonteCarlo可靠度分析方法,并应用于一特大超深基坑的嵌岩支护结构。
Due to the shortcomings of general reliability analysis method of underground construction structures , a new method that combines artificial neural network and importance sampling Monte Carlo method is put forward for analyzing the reliability and applied to the rock-socketed support structure of supper-sized foundation pit .
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对结构可靠度理论中非正态相关随机变量的三种处理方法,即JC法、映射变换法和Rosenblart变换方法进行了总结与比较。
The main contributions of the thesis are as follows : 1 . Three methods dealing with the problem of non-normal correlative variables , i.e. JC method , mapping transformation and Rosenblatt transformation are summarized and compared .
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基于遗传算法(GA)和概率网络估算技术(PNET),提出了一种用于求解复杂系统结构可靠度的新型算法。
A GA and PNET based new algorithm for solving system reliabilities of complex engineerings . This method can use not only the merits of Probability Network Estimate Technology , but also the global searching ability of genetic algorithm ;
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其次,用基于结构重要度和基于神经网络两种方法实现了底事件最优指标顺序的确定,解决了底事件指标顺序对BDD规模的影响问题。
Then , the optimal ordering permutation for the basic events of fault tree was produced by structural importance and neural network methods respectively , and the resulting size problem of BDD affected by the basic events ' order was solved .
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然后就现行规范可靠度水平进行讨论,指出安全裕度偏低,需要在修订《建筑结构可靠度设计统一标准》(GB50068-2001)时解决。
Afterwards , it is discussed the reliability level of the current code and pointed out that the low safety margin should be resolved by revising the " Unified Standard for Reliability Design of Building Structures "( GB 50068-2001 ) .
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《港口工程结构可靠度设计统一标准》(GB50158-92)按照构件在达到临界状态后发生脆性破坏、延性破坏等的不同模式,对单个构件可靠性分析,给出了其相应的可靠性指标。
" The unified standard for structure reliability design of port engineering " ( GB50158-92 ), according to different pattern which members will occur such as brittleness damage and ductility damage after reaching critical state , has analyzed the reliability of single member and given its corresponding reliability index .
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验证荷载试验前后的结构可靠度及其分析
Research and analysis on structural reliability before and after proof-load tests
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首先建立了适用的应力一强度模型,导出了壳体结构可靠度验前概率密度函数的表达式。
Firstly , an adaptable stress - capability model was established .
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利用拓扑理论评价组织结构合理度
Evaluation on the rationality of organization structure by means of topology
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本文探讨上肢假体在结构复杂度和功能选择方面的平衡问题。
This paper tries to balance between the complexity and functions .
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带有结构刚度非线性的跨音速翼型颤振特性研究
Investigation of Transonic Flutter Characterstics of Airfoil with Nonlinear Structure Stiffness
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在役混凝土桥梁结构可靠度评估的模糊类比法
Fuzzy Analog Method of Reliability Evaluation of Existing Reinforced Concrete Bridge
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衬砌厚度的变异性对隧道结构可靠度的影响
Influence of Variability of Lining Thickness on Reliability of Tunnel Structure
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工程结构可靠度指标计算的混沌搜索方法
Chaotic search method for calculation of reliability index of engineering structures
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关于建筑结构可靠度指标β计算公式的讨论
The Discussion of Calculating Formula of Building Structure Reliability Index
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截尾分布条件下的结构可靠度分析
The Structural Reliability Analysis Method of Structural Parameter Truncated Distribution
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防洪渡汛是尾矿坝安全管理的重点。本文根据安全工程学原理,建立了汛期尾矿库溃坝事故树,并进行了最小割集、最小径集及结构重要度分析。
Flood prevention is emphasized in the safety management of tailings dam .
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结构刚度矩阵的一种反演方法
A method for inverse analysing the matrix of structural stiffness
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响应面法计算结构可靠度的回顾
The review of the reliability analysis by response surface method
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文中提出了土壤熵的概念,指出土壤中物质能量的聚散同结构有序度的联系。
The concept of soil entropy was proposed out in this paper .