stochastic variable造句
例句与造句
- A class of strong convergence theorem for an arbitrarily adapted stochastic sequence without the non - decrease condition was established by using the truncation method of stochastic variables and the stop time
摘要引入了随机变量的截尾和停时的概念，在定理条件及其证明过程中适当地定义随机变量的截尾和停时，并通过定义鞅差序列和利用鞅差序列的收敛定理，得到了一类关于任意随机适应序列的强收敛定理。 - A necessary and sufficient condition with ergodic of 1 - order probability distribution function of stochastic process ( theorem 1 and corollary 1 ) and extended the general distribution theorem of stochastic variable under the case of weakly condition ( theorem2 ) are presented
摘要提出了随机过程一阶概率分布函数具有遍历性的一个充分必要条件（定理1和推论1 ） ，并在较弱条件下，对一般的关于随机变量函数分布定理作了进一步的推广（定理2 ） 。 - Define a random route , which pass through all the grid node , on the condition of given n conditional datum , get a value on the first grid node from the conditional distribution of stochastic variable , add the new value into the conditional datum as a new conditional data . on the condition of current n + 1 conditional datum , get a new value from conditional distribution of stochastic variable on the next node again . then continue until all the nodes gets own value
定义一个经过所有网格节点的随机路径，在给定n个条件数据的情况下，在第一个网格节点处从随机变量的条件分布中抽取一个值，将这个新值加入到条件数据集中，在给定的n + 1个条件数据的情况下，在节点处从随机变量的条件分布中抽取一个值，重新进行，直到所有节点被模拟完为止。 - It has shown by the uncertainty of the data of fatigue experimentation and the size deviation of machine accessory and structure component and the original defect of materials that all of the stress and intensity and the factors that affect them are stochastic variables , so we should deal with the problem of fatigue by the method of probability and statistics to making the engineering life deduced by fatigue intensity to be the reliable life under a certain probability
疲劳试验数据的离散性，零件和构件加工允许的尺寸偏差，材料中分布的原始缺陷，以及受载零件危险部位应力响应的分布特性等，都说明应力和强度以及影响它们的因素都是随机变量，它们有各自的分布形式，应该用概率统计理论和方法来处理，才能使疲劳强度在工程中所确定的寿命，成为保证某一概率下的可靠寿命。 - Based on the theory of stochastic finite element , the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables . by solving recurrence equation of stochastic finite element , the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure . an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure . as shown by the results , with regard to frame - shear structure , the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response . variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect . the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以随机有限元理论为基础，将框剪结构的刚度、质量、阻尼等结构参数为随机变量.通过求解随机有限元的递推方程，得到框剪结构各层的地震动力响应均值和标准差历时曲线.分析结构参数单独变异，以及同时变异对框剪结构地震响应的影响.研究结果表明,对框剪结构而言，结构参数的变异对响应的均值变化影响都不大，主要是增大响应的标准差.刚度的变异性将引起框剪结构的响应发生大幅度变异，质量的变异性影响稍小，阻尼的变异性影响不显著.结构各参数的同时变异，对框剪结构地震响应的影响，仅比刚度单独变异的影响稍大 - It's difficult to find stochastic variable in a sentence. 用stochastic variable造句挺难的
- According to the problem that the recovery rate is traditional treated as a constant or an independent stochastic variable by the classical credit risk pricing and management model , and problem that the negative correlation between the default probability and recovery rate is always neglected , this dissertation gets the exponential and logarithm regression models of default probablilty and recovery rate based on some empirical researches , and improves on several broadly applied credit risk models , such as structural hazard rate model , affine structure model , convertible bond pricing model and credit metrics model , and introduce the negative correlation between
针对传统的信用风险定价模型及信用风险管理模型将违约回收率看成是一个外生的常数或是一个独立的随机变量,而忽略回收率和违约概率之间的负相关性这一问题,本文应用相关实证研究得到了违约概率和回收率的指数和对数回归模型,并对应用非常广泛的结构化风险率模型、仿射结构模型、可转换债券定价模型和creditmetrics模型进行了改进和拓展,在新模型中应用指数和对数函数引入了这两个变量之间的负相关性。 - 2 . considered the material intensity , girder area , panel thickness and loads as stochastic variables , taylor expansion sfem is adopted to analyze the influence of stochastic variables to the nodal displacement , and the different effects of the different variables to the same nodal displacement are compared . 3
以船舶结构中的材料的强度、梁元截面积、板元厚度和外载荷为随机变量，采用taylor展开的随机有限元，分析了随机变量对船舶结构的节点位移的定量的影响，同时还比较了不同的随机变量对同一节点位移的不同影响。 - According to the instance of the arch dam built , take the discount quotiety , the verification flood water level , the frictional quotiety and , the agglomerate force and as stochastic variable quotiety , calculate the reliability index of the abutment with the calculational programme after the average value and variable quotiety is known
对于所取的拱坝实例，以扬压力折减系数，校核洪水位，摩擦系数、 ，凝聚力、为随机变量，在已知其均值并设定变异系数的前提下，利用电算程序计算其坝肩岩体的可靠指标。 - This paper firstly applied sequential cluster method to set up the classification standard of precipitation state based on the fact that there are much uncertainty and imprecise characteristics in the precipitation course ; then this paper presented a method which is called markov chain with weights to predicted the future precipitation state by regarding the standardized self - coefficients as weights based on the special characteristics of precipitation being a dependent stochastic variable ; and applied this method to a real hydrological observation station with nearly 50 years precipitation information in shanxi province at last , an ideal result was obtained
摘要首先基于降水过程存在大量不确定性、不精确性的特点，应用有序聚类的方法建立降水丰枯状况的分级标准；然后针对降水量为相依随机变量的特点，采取以规范化的各阶自相关系数为权重，用加权的马尔可夫链模型来预测未来降水的丰枯变化状况；最后以山西省某水文站近50年的降水资料为实例对该方法进行了具体的应用，获得了较为满意的结果。 - The first is based on the gain of the previous accumulate value , we can get the total gain at the stage of n , and from gained accumulate value of the stochastic variable set , and from the aggregate set of the past value , an enlarged state space is formed if we use the aggregate of the past value in the state space x , in which we use markov optimum strategy
第一种方法是基于增益的过去累积值的方法，我们考虑到第n阶段为止的增益累积值随机变量列，以及它取得的过去值集合列，得到它的总增益，进一步把本来的状态空间x上，将过去值集合附加上去，形成一个扩大的状态空间。在这个新的状态空间上考虑马尔可夫最优策略。 - At first , the basic theory and general process of the abutment stability against sliding of the arch dam with common definite solution ( the limiting equilibrium method of the rigid body and finite element method ) are simply developed . then combined with , reliability computation , the stochastic finite element method is used to establish the relationship between the load effect ( stress or force ) and basic stochastic variable dealing with statistical features of variables . based on the stochastic finite element method , the reliability of the arch dam abutment stability against sliding is analyzed , and the corresponding reliability index is calculated
首先简要介绍用传统定值方法(刚体极限平衡法和有限单元法)分析拱坝坝肩抗滑稳定的基本原理和一般过程，再与可靠度理论相结合，考虑变量的随机特性，通过随机有限元法建立荷载效应(如应力、内力等)与基本随机变量之间的关系，然后在随机有限元的基础上进行拱坝坝肩抗滑稳定的可靠度分析，计算相应的可靠指标。 - Meanwhile , the influence of the distribution types , cut - tail and correlation of the stochastic variable on the reliability is discussed finally , the application of the arch dam abutment stability against sliding analysis with the way of common definite solution and stochastic finite element method is tested by one practical example analyzed and calculated in our province
并讨论了随机变量的分布类型、截尾情况以及相关关系对可靠指标的影响。最后对我省一实际工程进行计算和分析，验证传统定值分析方法及随机有限元方法在拱坝坝肩抗滑稳定分析中的应用。 - If either of strength and stress is stochastic variable and another is fuzzy variable , the . fuzzy variable can be transformed to section number on the assumption that the probability of fuzzy variable taking some points in that section is proportional to its value of membership function respectively , then the probability of structural fuzzy event is transformed to general probability with stochastic strength and stress variables and can be solved by general probability theory
当强度和应力之一为随机变量，另一个为模糊变量时，提出将模糊变量通过模糊集合截集转换为区间数，并假定模糊变量在此区间取值的可能性与相应的隶属函数值成正比。采用上述处理后，结构模糊事件的概率即转化为相应的普通事件概率，可按应力和强度为随机变量，用常规可靠性理论进行求解。 - The " net cash flow from operating activities / net profit " , a cash flow indicator that is emphasized both at home and abroad , was first time to be treated as one of the variables for corporate performance . the listed companies of manufacturing industry were grouped according to their asset scale and industry property . the empirical study of equity structure and corporate performance were carried out through combining the empirical analysis and theoretical analysis and by using stochastic variable intercept paral data mode and sas software package
本文以制造业303家上市公司为总样本，确定了6个股权结构变量、 7个经营绩效变量，并在经营绩效变量中，首次引入了国内外尤为关注的现金流量指标? ?盈余现金保障倍数；将制造业各次类上市公司，按资产规模和行业性质进行划分，采用实证分析与规范分析相结合的方式，运用计量经济学建模方法? ?随机影响变截距平行数据法，应用sas统计软件，对我国上市公司的股权结构与经营绩效进行实证研究。 - Thereby drew a conclusion that variability of stochastic variable has remarkable effect on the reliability . and the different stochastic variable has different effect on the reliability while the variable quotiety increasing . the obtained results shown that the calculating method presented in the paper can be widely used in reliability analysis of abutment stability against sliding
从而得到以下结论：在坝肩岩体可靠性计算中，各随机变量的变异性对坝肩岩体的整体可靠性有显著影响，且不同的随机变量，当其变异系数有所增大时，对可靠指标的影响程度是不一样的。
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