不确定性

The probability of failure of uncertain structures with stochastically varying properties subjected to dynamic random loads is studied.

对受有动态随机载荷的含有随机参数的不确定结构的失败概率或可靠度进行了研究，使之在工程实际中固有的结构参数的不确定性以及其对结构响应和可靠性的影响进行了评价。

First ,it carry on the demonstration analysis to the efficiency of Chinese stock market , judge present efficiency state , then use relevant analysis technology and T examine law in econometrics to analyze the relevant relationship between split share structure and the efficiency of Chinese stock market , and then ,put qualitative analysis on the reason of low efficiency of Chinese stock market and the uncertainty change of Chinese stock market after reform , to investigate the influence degree on the efficiency of Chinese stock market by split share structure .

第三章为股权分置改革对股票市场效率的影响分析，先对中国股票市场效率进行实证分析，判断中国股票市场目前的效率状况，然后运用计量经济学中的相关分析技术和T检验法，对股权分置制度与中国股票市场的效率进行了相关性分析，再从对中国股票市场低效率的成因、股权分置改革后中国股票市场不确定性变化的定性分析中，考察股权分置改革对中国股票市场效率的影响程度。

For retail, distribution and manufacturing firms, it is favorable to maintain suitable safety stock in order to increase customer service level and decrease uncertainty of stockout and manufacturing process.

对于零售、分销和制造企业，维持合适的安全库存，有利于提高客户服务水平、降低缺货概率和减少生产过程的不确定性。

The inventory cost is a primary component of the supply chain cost, and the method for multi-echelon inventory optimization and control must be adopted for the sake of the entire supply chain optimization and control, t present, papers on multi-echelon inventory systems have solved some problems, but they still have limitations. Firstly, they assumed that leadtime are constants. In practice, as the unknowable incidents exist in production, transportation and distribution processes, leadtime usually are uncertain. Secondly, there exist the hypotheses of totally back orders or completely lost sales under the condition of stockout in most literatures. Thirdly, the existing two-echelon inventory approximate model optimum always fixes one variable in the inventory strategy, and then seeks the optimal in the remained parameters, which makes the result can not be the best outcome.

目前有关两级库存优化控制的研究文献大多是假设提前期为常数的基础上建立模型，然而现实中由于供应链上各节点的库存不确定性以及运输、生产、交货等环节的不可预知性，使得提前期在多数情况下是不确定的；而且大部分文献都是假设缺货情况下要么完全延迟交货，要么完全损失销售，很少有考虑部分损失销售情况下库存优化控制的；另外，现有的两级库存近似模型的优化大都是固定一个库存策略中的变量，对余下变量寻优，其优化结果不可能是最优结果。

On the basis of price competition model, the strategic effect of debt under the condition of uncertainty was analyzed.

以价格竞争模型为基础，研究了在产品市场存在不确定性时债务的战略效应。

By representing the uncertain parameters as interval numbers, the governed equations of the structure are obtained by means of the interval finite element method.

基于区间模型的结构静力分析将结构系统中的不确定性参数用区间数来表示，建立了系统的区间静力有限元控制方程。

By representing the uncertain parameters as interval numbers, the interval dynamic characteristic equations and the dynamic governed equations of the structure are built by means of the interval finite element method.

基于区间模型的结构动力分析将结构中的不确定性参数用区间数来表示，建立了系统的区间动力特征方程和动力控制方程。

Based on the classic theory of the capital structure and the three theorem of Modigliani-Miller, I use the stochastic equation as a tool to get the model of the capital structure.

在分析和借鉴西方资本结构理论的基础下，结合连续时间的Modjgliani-Miller的三个定理，考虑到市场的不确定性及汇率的波动性，利用随机偏微分方程理论，对企业的资本结构进行分析，从而得到企业总价值的模型。

The ambiguity created by the co-existence of these two faces of design has been the greatest stumbling-block in a satisfactory analysis of it.

由设计两方面的共存所产生的不确定性已经成为对设计满意分析的最大障碍。

D. The hierarchy structure of the knowledge base can be expressed as two aspects: the deep knowledge and shallow knowledge are in different subbase; the qualitative knowledge is divided into a hierarchy of three different aspects to complete different decisions.

得到磨选流程可选方案后，以此作为新的条件确定药剂制度，进而选择了预测选别指标的定量模型以确定选别指标，确定了知识和证据的不确定性的描述及其传播方式。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。