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statistical parameters中文是什么意思

  • 统计参数

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  • Based on an experiment performed on the piston ring - cylinder bore wear tester , liquid - solid lubrication is investigated in this thesis . the wear of the samples under different lubrication conditions ( the solid concentrations are 0 % , 0 . 02 % and 0 . 1 % by weight ) are discussed . the variations of the surface topography , especially the statistical parameters and functional parameters are studied , and the reasons that cause the variations are analysed
    本研究基于活塞环-缸套摩擦磨损台架实验研究了液-固二相流体润滑的问题,探讨了润滑油中不含固体颗粒、含有0 . 02和0 . 1纳米颗粒三种润滑状态下的磨损情况,并进一步研究了液-固二相流体润滑状态下试件表面形貌特性的变化,主要是统计参数和功能参数的变化,并探讨了引起变化的原因,为更深入的液-固二相流体润滑问题的研究以及表面形貌设计提供理论上的参考。
  • The resistance attenuation of each element is considered in the design process , and the statistical parameters of the elements are assumed to be the same as the investigated results of china . in the process of the calculating of the element reliability attenuation in expected service life , several load combination and different load ratio of dead load to live load are considered . in order to ensure that structure reliability in expected service life satisfies the requirement of today ’ s code , a method of choosing the initial reliability index of structure basing on the length of expected service life and the structure resistance attenuation is proposed and the corresponding durability reduction factor is chosen by an optimum algorithm
    根据我国现行建筑结构可靠度设计原理,考虑耐久性退化影响因素,设计了抗力统计参数与我国调查结果一致的五种代表性钢筋混凝土构件,考虑多种荷载效应组合以及不同荷载效应比,研究了不同使用期内代表性构件的可靠度变化规律;为保证预期使用期内结构可靠度水平仍可满足现行规范要求,提出了根据预期使用期和抗力衰减幅度确定结构设计可靠度指标的方法,并通过优化的方法确定了预期使用期内的耐久性折减系数,给出了预期使用期结构可靠度设计的实用设计方法。
  • On the base of reviewing kinds of statistical parameter , we developed a hybrid statistical technique adapted to chinese - english parallel corpora for the high - frequence content words , and adequately used dictionary information for the low - frequence content word . at last , we used the competitive linking algorithm and achieved the better result
    在详细考察各类统计参数的基础上,对高频实词提出了适合于汉英两个不同体系语言的一种混合的统计方法,而对低频实词则充分利用词典获取对应信息,最后采用一种综合的基于竞争链接的对应算法,取得了较好的效果。
  • Firstly in this part , computer simulation methodology based on the baecher model for generating network of discrete fractures was presented , which includes the follow details : probability distributions of fracture density , orientation , trace length , size , and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality . then , boundary element method was used to calculate flow through the generated fractured network . assuming single fracture as a two - dimension inexpressible isotropic porous media , boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method
    给出了离散裂隙网络模型所依据的基本假定;发展了基于baecher模型的离散裂隙网络计算机随机生成技术:详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式,发展了离散裂隙网络中稳态渗流的边界元数值技术,并且讨论了相关的具体数值技术细节,如角点的处理方法,单元的自动剖分等:描述了混合边界元?管流模拟方法及其数值实现;研究了裂隙网络的简化方法,并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。
  • Making use of the mathematical statistics analysis , probability distributions and statistical parameters of the sustained and transient quality of residential floor live load is studied . thereby the distributed models and parameters of the sustained live load and the transient live load on residential floor are obtained at design reference period t = 50 years and t = 100 years
    利用数理统计方法,研究了典型住宅结构楼面持久性活荷载和临时性活荷载的概率分布和统计参数,建立了设计基准期t = 50年和t = 100年时楼面持久性活荷载和楼面临时性活荷载的概率分布模型,并确定了模型参数。
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Last modified time:Sun, 17 Aug 2025 00:29:56 GMT

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