变量

According to induced response method, the expression in frequency domain of pressure response at the end of pipeline is derived using impulse response method and convolution theorem. The expression indicates that that transfer function is only related to the characteristics of pipeline system and the Fourier transform of flow variable only depends on the operating characteristics, and the pressure response in frequency domain is linear with the Fourier transform of flow variable.

基于激励响应法，应用脉冲响应方法和卷积定理得出了管道末端压力响应在频域中的表达式，此式表明：传递函数只与系统的特性相关，流量变量的傅立叶变换只与操作特性相关，且压力频域响应与流量变量的傅立叶变换为线形关系，根据此式在理论上能够得到管道泄漏点的重要信息。

Based on the flaw of the probability reliability model in the case of small amount of information,non-probability and mixed probability/non-probability reliability models are presented. When the uncertainty of the basic random variable is described by convex, analytical and numerical methods are constructed to calculate the convex of response variable. The infinite norm index, which is the minimal infinite norm distance from original coordinate point to the surface of the limit state in the standard interval space, is presented to measure the safety of the structure.

针对概率可靠性模型在小子样信息下的缺陷，建立了非概率可靠性模型及概率—非概率混合可靠性模型；给出了用集合来描述变量不确定性时，极限状态变量变化集合的解析解和数值迭代解法；提出了物理概念明确且十分易于工程应用的度量结构、机构安全程度的无穷范数指标，它是标准区间空间中坐标原点到极限状态表面的最小无穷范数距离。

The controller calculates an average change in correction value over M number of changes in correction value for the cylinder.

该控制器根据气缸校正值的M数目的改变量计算出校正值的平均改变量。

We have worried about omitting important factors from a model that might be correlated with the independent variables.

我们曾经担心遗漏重要变量，导致误差项u与解释变量x相关。

At last the study has established the structural equation model which about somatization and compulsion etc factors contribute to hostility and its correlated variables.

该研究是建立在120份在监男性服刑人员的SCL-90心理健康问卷的基础上，考察心理健康各变量对敌意的直接和间接影响，建立躯体化和强迫等因子与敌意相关变量的结构模型。

A p-value for the Pearson Product Moment Correlation smaller than 0.05 means the two variables are correlated; higher than 0.05 means variables are independent of each other.

皮尔逊积差相关的p值小于0.05意味着两个变量之间是相关的；p值高于0.05则意味着两个变量之间是不相关的。

To simplify the problem of multiple lognormal random interferences, an equivalent method is proposed to approximate the sum of correlated random variables to the sum of uncorrelated ones.

为了简化多个对数正态随机干扰的问题，提出了1种等效方法，能将相关随机变量之和等效为非相关随机变量的和。

A multivariate model was then used to identify peri-OLT variables independently correlated with post-OLT length-of-stay.

此后，我们又运用多变量模型来鉴别围手术期变量与术后住院时间之间的独立关系。

The true default risk depends on a number of variables which none of the market participants can observe directly. Furthermore, many of these hidden variables maybe correlated across obligors.

在此模型中，投资者仅有负债人违约风险真正大小的不完全信息，而真正的违约风险依赖于一系列不可观测的随机变量，并且这些变量在负债人之间是相关的。

The maximum principle of the optimal control for the stochastic systems described by Zakaj stochastic partial sifferential equationis proved by approximately minimum point theorem of E. Ekeland. The convexity and compactness of the set of control values is not assumed, and it is not necessary for the maximum principle about differentiability in control variables included in drift term of the stoch astic system and the integrand in index functional, and costate process satisfies the stochastic partial ...

在不假便定控制变量取值的集合是凸的和紧的，不要求随机系统的漂移项和指标泛函的被积函数关于控制变量具有可微性的情况下，用E，Ekeland的近似极小点定理证明了Zakai随机偏微分方程描述的随机系统的最优控制的最大值原理，和用很简洁的方法证明了协态过程满足一个随机偏微分方程。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。