查询词典 random

Through simulating the speckle intensity distribution in the far field of a random rough surface, we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average, and determinate the surface roughness by the mathematic model of ensemble average.

通过模拟计算随机粗糙表面的远场散斑场，以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数，并应用集平均的数学模型反演粗糙度参量。

Based on the random anisotropy model, the relation between the magnetic property and microstructure is presented.

基于随机无规磁各向异性模型，阐明了该合金的软磁性能与其显微结构的关系。

In this paper,we try to investigate the numerical characteristics of present value of annuities with random interests.

本文试图在随机利率条件下研究年金现值的数字特征。

In th is paper, w e p ropo se a cert ificateless ring signature scheme, based on the bilinear pairings, w h ich p rovides uncondit ional anonym ity, and p rove th is scheme is existent ially un fo rgeable under adap t ive cho se2message at tack s, in the random o raclemodel, assum ing that the computat ionalD iffie2Hellman p roblem is hard to so lve.

摘 要 在这篇文章里，我们用双线性对构造了一种无证书的环签名方案，并证明它是无条件匿名的，且在随机预言模型中，计算性D iffie2Hellman 问题是难解的，我们方案在适应性选择消息攻击下是存在性不可伪造的，它的安全性比在基于身份的公钥密码体制下高。

The Liar, The Truth Teller and The Random Answerer

说谎者，老实人和随机回答的人

METHODS: 5 184 people of non-manual workers and manual workers in city as well as farmers at different sex, aged from 20-59 years, were selected in Shijiazhuang, Cangzhou and Chengde with random sampling of stratified cluster in July 2000. They were assigned into 20-39 year group and 40-59 years group according to age to perform investigation of their physical work, which composed of strength of grasp, anteflexion of body when sitting, standing with single foot when closing eyes, back pressure, vertical jump, 10 m×4 return run, push-up, sit-up and choice of reaction time, etc. RESULTS: 4 800 people were involved in the result analysis.

于2000-07用分层整群的随机抽样方法抽取石家庄、沧州、承德3个城市不同性别的城市非体力劳动者、城市体力劳动者、农民3类职业人群的20～59岁公民5184名，按年龄分为20～39岁组和40～59岁组两组，对其进行体能测查，测查内容包括握力、坐位体前屈、闭眼单脚站立、背力、纵跳、10m×4往返跑、俯卧撑、仰卧起坐、选择反应时等。

Next the paper introduces the basic antilogy of random simulation, calculated steps and the selection of the type of bidding distribution.

接下来介绍了随机模拟报价的基本思想、计算步骤及报价分布类型的选取。

This dissertation deals with theoretical and practical aspects of antithetic and common random numbers for variance reduction in simulation of stochastic systems.

本文对复杂系统仿真中的公共随机数和对偶变量法进行了系统的论述，给出了各种条件下实现方差衰减的理论和实验结果，给出了估计一对具有独立和相关分量的向量函数的响应和期望的最优化证明，且推导出在弱条件下的方差衰减。

You can choose any number of random characters between your password.

您可以选择任何数量的随机字符的密码。

Other useful categories include those of periodic or aperiodic signals and random or deterministic signals.

其他有用的分类包括周期信号和非周期信号，随机信号和确定性信号。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。