查询词典 intervals

Meanwhile, it could be seen that there does not exist a confidence interval with width less than 0.5 because of the property of Poisson distribution. Based on these conditions, the author mainly carried out research into two aspects of this problem as follows. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example,"exact" confidence interval, Wald confidence interval and Bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed .Also, several better confidence intervals such asare also presented .Secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two-stage interval estimate procedures. At the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. The numerical computation shows that the method considered in this dissertation have good properties and applied value.

同时，由于Poisson分布的特性，我们知道不存在其参数区间长度小于0.5的置信区间，基于这些情况，我们主要展开了以下两个方面的研究：一是利用数值计算分析与理论分析的方法对现有的若干置信区间如"精确"置信区间，Wald置信区间，Bayes置信区间等进行分析比较，发现了一些缺陷，针对这些缺陷，我们进行适当的修正，并得到几种性质较好的置信区间如：修正大样本区间Jeffreys原则下置信区间二是针对已给定的置信系数与区间长度，我们提出了一种渐近的两阶段区间估计程序，并利用数值计算的方法，在各种置信系数与区间长度限定下，算出了最优的第一阶段观测次数，大量数据表明，本文考虑的方法性态良好，具有应用价值。

Therefore,tapping potencial of remaining oil to improving oil recovery,the recognition of reservoir intraformational heterogeneity in channel sandbodies is proposed and the main targets of reservoir IOR in channel sandbodies of mature oilfields are pointed out as follows:①shutting off strongly-waterflooded intervals to control ineffective circulation of injected water;②strengthening water washing in medium-waterflooded intervals in order to achieve the aimed waterflood efficiency and even to exceed it;③enhancing injection-production consistency and injector-producer ratio of non-waterflooded or weakly-waterflooded intervals for the propose of realizing effective displacement and imporving conforma nce.

根据我国东部主力油田储层绝大多数都属于河道砂体，注水开发进入高含水阶段后，层内剩余油超过层间剩余油，层内矛盾上升为主要矛盾这一特点，从挖掘层内剩余油潜力出发，提出要重新认识河流砂体储层层内非均质性，并指出高含水期河流砂体储层改善采油目标主要有：①封堵强水洗段，控制注入水无效循环；②加大中水洗段注水冲洗强度，达到目标水驱效率，并有可能超过目标效率；③提高未、弱水洗段的注采对应程度和注采井数比，达到有效驱替，提高波及程度。

There are track intervals and there are road intervals, and both types of intervals come in a variety of flavors.

有场地间歇，也有公路间歇，这两种间歇模式的感觉有一些不同。

Utilize intervals between campaigns in resting, grouping and training troops, but don't let intervals be long or allow the enemy a breathing spell.

利用两个战役之间的间隙，休息和整训部队。休整的时间不要过长，不使敌人获得喘息的时间。

It will be seen that other augmented intervals may have more common enharmonic equivalents, but are regarded as augmented intervals according to their harmonic function.

其他增音程则出现更多的同音异名，但是根据其和声功能，均被看作增音程。

In unusual cases, a confidence set may consist of a collection of several separate intervals, which may include semi-infinite intervals, and it is possible that an outcome of a confidence-interval calculation could be the set of all values from minus infinity to plus infinity.

在个别情况下，一个置信系列可以由一系列的多个单独区间组成，其中可能包括半无穷区间。这种情况下，一个置信区间的结果值有可能会是这一系列值当中的一个。

During the 90 min experimental period, urine was collected in 10 min intervals and perfusate was collected at the midpoint of these intervals.

目的为建立发现和评价促尿酸排泄药物作用的离体模型，采用离体大鼠肾脏灌流技术，观察尿酸在离体肾脏中排泄特点和丙磺舒对尿酸排泄影响。

A Cox Regression model for recurrent event data was used for the analysis of maternal and paternal socio-demographic characteristics in relation to birth intervals. The risks of shorter birth intervals were expressed as hazard ratios .

利用分析重覆事件的考克斯模型探讨双亲社会人口学特徵对出生间隔的影响，解释变项的效果以风险比及相关的95%信赖区间表示。

In order to find simultaneous confidence intervals for finite or all the estimable functions in a normal linear model, the literature[1-3] gives us three methods: Scheffe, Bonfenoni and Tukey simultaneous confidence intervals.

在正态线性模型Y=Xβ+ε，ε～N_n(0，σ~2I)中，考虑有限个或者所有的可估函数的同时区间估计，文献[1-3]给出了三种区间，分别为Scheffe，Bonferroni和Tukey同时置信区间。

Giving two equal-intense stimuli which is higher than the threshold stimulus and whose intervals are longer than the single twich period, two independent contracting curve can be observed. Giving two equal-intense stimuli which is higher than the threshold stimulus and whose intervals are longer than the refractory period, an additive-contracting curve can be observed. Giving several equal-intense stimuli which is higher than the threshold stimulus, tetanus curve can be observed.

当给予两个等强度的阈上刺激，且刺激的间隔大于单收缩的时程，在计算机中可以观察到两个独立的收缩曲线；当给予两个等强度的阈上刺激，且刺激的间隔小于单收缩的时程而大于不应期，在计算机中可以观察到两个收缩曲线的叠加，称为收缩的总和；当给予若干个等强度的阈上刺激，在计算机中就可以观察到强直收缩曲线。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。