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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。

In particular, for recurrent event data, we proposed a novel nonparametric estimator of the survival function and obtained an efficient estimator of the expected total number of events for counting processes. Also we established asymptotic properties of these estimators and investigated nonparametric estimation of survival functions, density functions and hazard functions under various types of incomplete data.

在重复事件发生的情况下,创新地提出了一种生存函数的非参数估计,获得了计数过程中预期事件总数的估计以及这些估计的大样本性质,并在其他各种不完全数据下对生存函数,概率密度和失效率函数等非参数估计进行了深刻研究。

In this paper,with respect to the ordinal variables,the definitions of attribute reduction of dominance-based rough set approach in ordered information systems and ordered decision tables are given.Then the approach of sorting objects comprehensively using rough set theory is brought in to obtain a series of ranks.Based on these ranks,nonparametric methods to analyze correlation between two attribute subsets are introduced,and Spearman rank correlation coefficient is used as a measure of attribute correlation.Based on this measure,a new method of attribute reduction of ordered information systems and ordered decision tables is presented without changing the ordinal information of the universe.

针对有序尺度变量,给出了有序信息系统与有序决策表在优势关系下的粗糙集约简定义;利用粗糙集方法将对象综合排序,进而得到一组秩;根据这些秩,运用非参数统计的思想研究了两个属性子集之间的相关性,并将Spearman秩相关系数作为属性相关性度量;在不改变总体序信息情况下,给出了基于此度量对有序信息系统与有序决策表进行约简的新方法。

We followed tracks and signs of a large group of lion cubs that moved considerable distances, without the guidance or protection of adults. There were approximately ten cubs, and from the size of their spoor, they were no older than a year. These were unusual observations. Generally, lionesses give birth to small litters of 2 – 3 cubs, although they do occasionally synchronise their oestrus cycles and produce litters about the same time. However lion cubs, of that age, are mostly in the company of adults. Textbooks and the scientific literature suggest that one-year-old lions are dependent on the adult lionesses of their pride, and could not survive on their own.

我们跟踪由一大群幼狮留下足迹的其他记号,这些狮子没有其他成年狮子陪同和保护,粗略估计,这群狮子的数量接近10只,他们足迹的尺寸显示他们不会超过1岁,这是不常见的,通常情况下,母狮会生下至少2~3头幼崽,但也有个别例外的时候,然而在这个年龄段的幼狮大都有"母亲"陪同,许多书上介绍,1岁大的小狮在离开狮群母狮的照顾后是无法生存的。

When uneven cognitive profiles are found in childhood or adulthood, it is assumed that such phenotypic outcomes characterize infant starting states, and it has been claimed that modules subserving these abilities start out either intact or impaired.

当不规则的认知剖面图在孩童或成人身上被发现,它预设了这些显型的结果描绘出婴儿的起始状态,以及它也声称模组将有利于这些能力在完整的或障碍的情况下发挥作用。

When uneven cognitive profiles are found in childhood or adulthood, it is assumed that such phenotypic outcomes characterize infant starting states, and it has been claimed that modules subserving these abilities start out either intact or impaired.

当不规则的认知剖面图在孩童或成人身上被发现,它预设了这些显型的结果描绘出婴儿的起始状态,以及它也声称模组将有利於这些能力在完整的或障碍的情况下发挥作用。

The overall aim of the neural stem cell lab is to understand, at a molecular and cellular level, how endogenous mammalian neural stem cells are generated during development, and how their actions are regulated in the adult CNS, both under normal conditions and following disease or degeneration.

该神经干细胞实验室的总体目标是针对正常条件下和疾病或退化情况下,在分子和细胞水平阐述内源性哺乳动物神经干细胞在发育过程中的产生,以及这些神经干细胞在成人中枢神经系统中活动的调控。

It's a long long journey till i know where i'm supposed to be it's a long long journey i don't know if i can believe when shadows fall and block my eyes i am lost and know that i must hide it's a long long journey till i find my way home to you many days i've spent drifting on through empty shores wondering what's my purpose wondering how to make me strong i know i will falter i know i will cry i know you'll be standing by my side it's a long long journey and i need to be close to you sometimes it feels no one under stands i don't even know why i do the things i do when pride builds me up till i can't see my soul will you break down the sewall sand pull me through cause it's a long long journey till i feel that i am worth the price you paid for me on calvary beneath those stormy skies when satan mock sand friends turn to foes it feel like every thing i soul to make me lose control case it's a long long journey till i find my way home to you..

下面是中文-----------------------------------------------------它是一个漫长的漫长旅程直到我知道我应该它是一个漫长的漫长旅程我不知道如果我能相信秋天时,阴影和拦截我的眼睛我失去了和知道,我必须隐藏它是一个漫长的漫长旅程直到我找到回家的路上你许多天我花漂浮在海岸通过空想知道我的目的想知道如何使我强烈我知道我会动摇我知道我会哭泣我知道你会站在我身边它是一个漫长的漫长旅程我需要你身边有时我感觉没有人站下我什至不知道为什麼我做的事情我当我感到自豪的基础直至我看不到我的灵魂你会打破休厄尔砂拉帮我渡过难关事业是一个漫长的漫长旅程直到我觉得我很值得的价格你支付我的髑髅下面这些暴风雨天空当撒旦模拟砂朋友谈谈敌人感觉每一个我的灵魂,使我失去控制情况下,它是一个漫长的漫长旅程直到我找到回家的路上给你。。。

The following issuances shall not trigger anti-dilution adjustment: reserved as employee shares described under the Company's option pool,… iii

通常,在某些特殊情况下,低价发行股份也不应该引发防稀释调整,我们称这些情况为例外事项。

Almost imperceptively their presence began to twist the forms and minds of the local Satyrs and other foul, demonic creatures.

在这些居住在这边的萨特以及其他污秽的恶魔几乎毫无知觉的情况下,这些小精灵改变了他们的形态和思想。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。