概率比

First, in the composite hypothesis testing, circular dispersion error which is more practicable than horizontal and vertical error is used to discuss some problems of the dispersion of impact points; and the critical area of decision in the dispersion problem is analyzed; the specific expression of Bayesian risk is worked out, which ameliorates the method that only can get the approximate solution by calculating numerical integration.

由此，本文主要应用Bayes方法对以下几方面进行了探讨：首先，在复杂假设下，本文利用圆散布误差这一精度指标对落点散布鉴定问题进行研究，它比以往所用的纵、横向偏差精度指标更具现实意义；分析了此鉴定问题的决策临界区域；给出其Bayes风险的具体表达式，对用数值积分进行近似求解的方法进行了改进；在此基础上，通过极小化试验的风险确定最优试验数n，并讨论了决策中犯两类错误的概率，给出了验前信息的表示。

This paper based on Bayes posterior probability formula, establishes a dynamic model for the identification of fractures by using five performance paramete1 such as water breakthrough period, waterline movement velocity, using velocity of water cut, cumulative injection production ratio, and injection pressure. It carries out an analogy between the samples to be distinguished and the known ones to confirm how to classify them.

将油水井见水周期、水线推进速度、含水上升速度、累积注采比、注水压力等5个参数作为动态变量，基于Bayse后验概率公式建立动态裂缝识别模型，将待判别的样品与已知类型的样品进行类比，以确定待判别样品的归类。

However, a break-up is improbable—and less likely than it was before the crisis.

然而，分道扬镳是不太可能的——至少比危机发生前的概率要小。

The famous Chebyshev's Inequality is usually used when estimating the boundary from above or below of probability .

在估计某些事件的概率的上下界时，常用到著名的切比雪夫不等式。

On the basis of this model and a cycles-based model of fatigue strength degradation for composite laminates, a probability distribution model of fatigue strength degradation, which is based on the ratio of initial stiffness to residual stiffness, for composite laminates was derived and a methodology was given for determination of the parameters in the model.

本文从唯象学的观点提出了一个复合材料疲劳剩余刚度衰退模型，根据该模型导出了基于疲劳剩余刚度比的复合材料层合板疲劳剩余强度概率分布模型，给出了确定该模型中各参数的计算方法。

Exact closed-form cumulative distribution function expression of the signal-to-noise-plus-interference ratio was derived. The average capacity of MIMO MRC systems with multiuser diversity was presented.

导出封闭形式的信号干扰噪声比的概率分布函数表达式和以平均容量的形式给出的系统多用户分集性能表达式。

This algorithm changes the detect points on the target trajectory to the respective curve in parameter space, which takes full advantages of the target detect data in a certain period, and the trajectory characteristics can also be picked up even under low SNR.

该算法把航迹上的观测点变换为参数空间的对应曲线，充分利用一段时间内的目标观测数据，在低信噪比下也能从背景噪声中提取目标的航迹特征，提高了声呐的检测概率，且对部分信息和数据的缺失不敏感。

Summary receiver operating characteristic analysis demonstrated better discriminatory power for MRCP than for US and CT, and better discriminatory power for US than for CT.

同时按病变部位、性质分别计算MRCP、US及CT的敏感度、特异度和似然比等指标，比较显著性检验统计学方法采用χ〓检验或精确概率法，p＜0.05为有显著性差异。

Aussies who reported watching four or more hours of TV a day were 46% more likely to die during a 6.6-year period than those who watched less than two hours a day, according to David Dunstan, PhD, of Monash University in Melbourne, and colleagues.

墨尔本墨娜大学的大卫邓斯坦博士和其同事进行了一项长达6年多的跟踪调查，结果显示那些每天看电视不少于4小时的人比每天看电视不到2小时的人死亡概率要高出46%。

BPSK This is a simulation program that can be given Channel SNR calculation BPSK system error probability.

这是一个BPSK仿真程序，可以在给定信道信噪比下计算BPSK系统的差错概率。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。