查询词典 probability amplitude

An impossible event has a probability of exactly 0, and a certain event has a probability of 1, but the converses are not always true: probability 0 events are not always impossible, nor probability 1 events certain.

一个'不可能'事件其机率值为0，而'确定'事件其机率值则为1。但反推并不成立，也就是说机率值为0的事件不表示它就是一个'不可能'事件，同理，机率值为1的事件不表示它就一定发生。

An ''impossible'' event has a probability of exactly 0, and a ''certain'' event has a probability of 1, but the converses are not always true: probability 0 events are not always impossible, nor probability 1 events certain.

但反推并不成立，也就是说机率值为0的事件不表示它就是一个'不可能'事件，同理，机率值为1的事件不表示它就一定发生。

Based on the interval probability and the second fuzzy probability, go a step further the definition and characters of random variables with the third fuzzy probability and the fuzzy distribution function and fuzzy probability distribution sequence were put forward.,the definition and characters of mathematical expectation and variance were studied also.

在区间概率和第二类模糊概率的基础上，进一步给出了具有第三类模糊概率的随机变量及其模糊分布函数和模糊分布列的定义和性质，并研究了模糊概率随机变量的模糊数学期望和模糊方差的定义和性质，进一步完善了模糊概率理论。

In the meantime, a new relation between the coefficient of variation for a normal variate and its sample size is achieved, where the probability to make mistake Ⅱ is considered 5 The probability distribution of fatigue strength at given life under large sample size determined by a new method is found to follow the log-normal distribution and normal distribution, and a new method are developed to estimate the characteristic parameters of probability distribution of fatigue strength from the probability distribution of traditional tensile properties.

根据P-S-N曲线的要求，采用概率统计方法，导出了考虑犯Ⅱ类错误的概率时获取给定精度P-S-N曲线所需的最少子样容量，引入了不同方法获取的P-S-N曲线结果是否趋同的判别标准，得到了P-S-N曲线的寿命求解法和系数求解法获得趋同结果的条件。 5）研究了大子样条件下指定寿命时疲劳强度的概率分布，并提出了根据拉伸性能的分布估算材料疲劳强度概率分布参数的一种方法。

The output probability distribution of charge carrier multiplier structure from the electron multiplying charge-coupled device and its influence on image uniformity are studied. The probability model is established for the CCM structure of EMCCD. And based on the probability generating function and its properties, the probability distribution function of multiple CCM stages is deduced and its application in improving image uniformity is also discussed.

为了研究电子倍增电荷耦合器件中电荷载流子倍增结构的输出概率分布及其对图像均匀性的影响，建立了EMCCD中CCM结构的概率模型，利用概率生成函数推导了多级CCM倍增结构的输出概率密度函数，讨论了PDF在提高图像均匀性中的应用。

Secondly, by establishing a discrete time Markov model with spatial reuse for a MANET, we analyze the performance of the network under the AODV routing protocol. The average route length and the probability to communicate within a limited hop distance are obtained. Several performance parameters of the route discovery and route maintain process are analytically studied, such as the probability generating function and the expectation of the flooding distabce. the probability that a route is discovered by a query packet with a "hop limit", the probability that a request packet finds a valid route, the average time needed to discover a valid route and the cost to successfully route a data packet to its destination. Furthermore, we present a concrete example based on the transmitter characteristic of directional antennas and obtain the corresponding results.

建立了移动自组网络空间可重用的离散时间马氏链模型，得到了AODV路由协议下网络任意两节点间的平均路由长度、在指定"跳限"要求下通信的概率；对随选型路由协议下路由发现和路由维护过程中若干网络性能参数进行了解析分析，如网络中任意两节点问的泛洪距离的概率母函数及其期望、限定泛洪步数时成功寻路的概率、发现一条有效路由的平均时间、成功路由的代价等；并基于定向天线的发射特征给出了一个具体实例，分析计算了相应的网络性能参数。

This paper introduced the appliance of probability and statistics in reality,including classical model,formula of total probability, normal distribute,mathematics expectation and the central limit theorem.While it also discusses the widely uses of probability and statistics and the close relationship with the real life.Therefore,it lays the theoretical foundation for the practical uses with probability and statistics,and the basis of mathematics model.

本文介绍了概率统计的某些知识在实际问题中的应用，主要围绕古典概型，全概率公式，正态分布，数学期望，极限定理等有关知识，探讨概率统计知识在实际生活中的广泛应用，进一步揭示概率统计与实际生活的密切联系，为应用概率知识解决实际问题，数学模型的建立，学科知识的迁移奠定一定的理论基础。

The validities of amplitude features and their extraction method suitable in high-frequency SAR image are analyzed when they are used in UWB SAR image. An extraction approach of amplitude feature based on target contour is presented, and the corresponding effective amplitude features are proposed. The old dihedral angle model is analyzed and improved. The approach of azimuthal feature extraction is proposed based on the conclusion of the improved dihedral angle model. The problems, which appear when the common change detection methods are used to extract the change feature based on ROI, are analyzed. And a robust and feasible extraction approach is presented.

分析了适于高频SAR图像的幅度特征及其提取方法用于UWB SAR图像时的有效性，提出了基于目标轮廓的幅度特征提取方法及相应的适用幅度特征；分析了已有二面角模型在建模过程中存在的问题并进行了改进建模，基于改进二面角模型结论提出了方位向特征提取方法；分析了常用变化检测方法用于提取ROI变化特征时存在的问题，提出了一种稳健可行的变化特征提取方法。

Seven kinds of antijamming methods,such as time correlated choice and field-of-view shrinkage, inertial track,real-time memory criterion,amplitude discrimination, pulse-width discrimination, pulse-amplitude time sequence discrimination and pulse-width amplitude discrimination for Counter-Infrared-Interference-Missile with the cross-shaped detector array are given.

介绍了四元正交探测器以及红外干扰弹的工作原理，对四元正交探测器导引系统抗红外干扰的7种方法(即时间相关选择和视场收缩技术、惯性跟踪机制、实时记忆准则、幅值鉴别法、脉冲宽度鉴别法、脉冲幅值序列鉴别法和脉冲宽度幅值鉴别法)等进行了讨论。

Results 1 there were no significant differences of amplitude of accommodation and accommodative lag between the myopia group and emmetropia group. The differences of amplitude of accommodation between the myopia group and hyperopia group were significant (t=2.21, P=0.03.05; t=2.83, P=0.006.05). 2 The difference of accommodative lag between the dominant eye (0.73±0.31) D and non-dominant eyes (0.81±0.38) D in myopia group was signiflcant.3 The accommodative lag of dominant eyes was (0.68±0.36) D and it of non-dominant eyes was (0.75±0.34) D, the difference was significant (t=2.06, P=0.042.05, n=95).There was no significant difference between the amplitude of accommodation of dominant eye (12.9±3.09) D and non-dominant eyes (12.6±3.09) D.

结果 近视患儿的主导眼和非主导眼的调节幅度和调节滞后与正视儿童均差异无统计学意义；而其主导眼和非主导眼的调节幅度比远视患儿明显更大(t=2.21， P=0.03.05； t=2.83，P=0.006.05)；两组的调节滞后差异无统计学意义。50例近视患儿主导眼和非主导眼的调节滞后值分别为(0.73±0.31)D和(0.81±0.38)D，主导眼和非主导眼间差异有统计学意义(t=2.14，P＝0.038.05)；调节幅度分别为(13.39±3.51)D和(13.26±0.60)D，差异无统计学意义。95例观察对象的主导眼的调节滞后度为(0.68±0.36)D，非主导眼调节滞后度为(0.75±0.34)D，主导眼和非主导眼间的差异有统计学意义(t=2.06， P=0.042.05)；主导眼调节幅度(12.9±3.09)D，非主导眼为(12.6±3.09)D，差异无统计学意义(t=1.49， P=0.14)。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。