查询词典 stochastic

Based on the transmission gears, this paper has studied systematically the method of fatigue lifetime prediction under stochastic loads, through probability statistics, finite element and fatigue analysis. The influences of uncertainty of load statistical distribution, finite element model and mechanical performance parameters of material on fatigue life prediction are analyzed.

本文以传动齿轮为研究对象，应用概率统计、有限元和疲劳分析，深入、系统地研究了自行火炮传动齿轮在随机载荷作用下疲劳分析与寿命预测的理论方法，分析了载荷统计分布、有限元模型和材料力学性能参数的不确定性对疲劳寿命预测的影响。

Under the service rule that customers who first come would first get the service, we use the structure analysis method to get the stochastic decomposition of the queue length with the generating function of probability and the steady waiting time with Laplace-stieitjes transforms.

重点分析了带启动期的一般减量服务的单重休假$M/G/1$排队系统的一般结构，利用结构分析的方法，在先来先服务规则下求得稳态队长的随机分解的概率母函数和稳态等待时间的随机分解的$LST$，同时，讨论了系统处于平衡的条件及其概率含义的直观解释，进一步讨论了系统处于休假期、忙期、忙循环等状态时的各项性能指标及系统状态分布。

In this method, to maintain the stochastic property of the transition probability matrix, population parameters and basic parameters are introduced, and then the distribution of agents is gotten.

该方法通过设置母体参数和基本参数的方法来得到保持转移概率的随机性，进而得到了整个多agent系统的基于信誉的分布情况。

Stochastic transition probability matrix is listed according to Markov theory,and the steady probability of each state is calculated.

根据马尔可夫理论列写了随机转移概率矩阵，求解了微机继电保护设备各种状态的稳态概率。

The theory of reliability is based on the probability . it considers the variability of all stochastic variable and use taut probability to measure

可靠度理论是建立在概率论基础上，考虑了影响滑坡体稳定的各项随机变量的变异性，并用严格的概率来度量。

On the basis of the previous work, further study on DFN stochastic modeling was made in this paper. Space Variable Probability Method was used to account for the effects of the local faults on distribution of fractures. Circular Statistics was applied for fracture orientation data analysis.

在前人工作的基础上，对离散裂缝网络随机建模方法做了进一步的研究：考虑了局部断层等不连续面对裂缝分布的影响，采用空间变概率的方法确定裂缝位置；采用循环统计方法分析裂缝产状数据。

The distributary river course reservoir in the Lower Member of Minghuazhen Formation in an oilfield of Bohai Basin was modeled. The modeling units were divided using the integrated geological modeling method based on seismic, log and geological data. The sedimentary microfacies features of the modeling units were described. The geological knowledge base, including quantitative description of microfacies in every unit, probability function of facies, connection probability of sand body, was established. The geological model of reservoir was proposed on the basis of stochastic reservoir modeling by using an objectbased simulation method.

以渤海某油田新近系明化镇组下段缓坡三角洲平原亚相分流河道储层为例，利用以精细地质建模为目的的地震、测井和地质一体化综合研究方法，合理划分模拟单元并定量描述各单元内沉积微相特征；结合相概率函数和砂体连通概率等定量约束条件，建立了半定量—定量储层地质知识库，实现了等时建模、成因控制相建模、确定性条件约束随机建模三者的有效结合；采用基于目标的随机模拟方法建立了储层地质模型。

Using martingale method, we deal with option pricing problems on foreign currency, and obtain price expression of European call and put option under stochastic interest rate and their parity. We also consider hedging problems of options.

在随机利率情况下，利用鞅方法讨论了外汇欧式期权的定价问题，得到了欧式看涨期权和看跌期权价格的解析表达式及其评价关系，并考虑了期权的套期保值问题。

At the same time, the available data are collected at several different resolutions. Thus, it is very necessary to built multiscale dynamic model based on pyramidally organized trees for stochastic processes.

因此，为更好地表征这些现象或过程的本质特性，建立起现象或过程基于树状结构多尺度动态模型是十分必要的。

Based on the information-scheduling models and time-delay models of networked control system, state-estimate-based and parity-relation-based fault diagnosis approaches and passive fault-tolerant control such as integrity control for networked control systems are presented; 2 we presented new models, Quasi T-S models, for linear and nonlinear networked control systems with random time delays, and the corresponding fault diagnosis and fault-tolerant control approaches; 3 With all these fault diagnosis theory presented, active fault tolerant control approaches are developed directly for networked control systems; 4 Some analysis, design and optimization theory for networked control systems are presented., such as robust control, LQ guaranteed cost control, modeling and control for stochastic networked control and integrated optimization etc.

给出了诸如网络化控制系统的鲁棒控制、LQ保成本控制、联合优化设计、随机网络化控制系统的建模与控制等方面的结果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。