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   是随机 的翻译结果: 查询用时:0.045秒
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是随机
相关语句
  a stochastic
     not only it has a stochastic change,but also it has a confirmed value (9.8km/s).
     它不仅是随机量,而是具有大小为9.8km/s的定常量。
短句来源
     A stochastic information filter theory and Monte-Carlo random date simulation technique are adopted.
     采用的是随机信息滤波和系统辨识理论以及Monte-Carlo随机数字模拟技术。
短句来源
     This can be addressed by viewing the set of object as a random set,in which the number of objects,N,is a stochastic variable.
     可以把目标集看作随机集进行讨论,目标数N是随机变量。
短句来源
     A stochastic model of conducting crack propagation is presented to provide a conceptual framework dedicated to the study of the formation of fractal structure of dielectric ageing patterns as a result of a competition between random fluctuation growth and applied electric strength enhanced deterministic growth. The necessary and sufficient conditions resulting in fractal behaviour in dielectric ageing are found.
     提出了导电裂纹长大的随机模型.该模型为研究分形电老化模式提供了一个概念性框架,在这一理论框架内.形成分形电老化结构是随机涨落长大和外加电应力强化确定性长大相互竞争的结果.本文还给出了在介电老化过程中产生分形结构的充要条件.
短句来源
     For the sake of research suiting to data, under the prerequisite theory and method, EMH study in domestic and international stock market, be analyzed and absorbed synthetically, this select Hurst index, find out the average circulation cycle of stock market through V statistic, calculate Hurst index, deem the fluctuate of stock price isn't the process of RWM in China, but a stochastic one with offset.
     为了使研究切合数据,在综合分析、吸收国内外股票市场有效性研究理论和方法的前提下,选择Hurst指数,通过Ⅴ统计量发现中国股票市场的平均循环周期,并计算了Hurst指数,认为中国股票市场股价波动不是随机游走过程,而是一个有偏的随机过程。
短句来源
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  “是随机”译为未确定词的双语例句
     Let Y=X_1 BX'_2+U_ε be a multivariate linear model, where X_1, X_2 and U≠0 are known matrices, B is an unknown matrix and ε is a random matrix.
     Y=X_1BX′_2+U_ε是一个多元线性模型,其中X_1,X_2和U≠0是已知矩阵,B是未知参数阵,ε是随机矩阵。
短句来源
     The integrability of eλ|F|2 is discussed by JPK,where F is a random trigonometrical function: F(t)=∑∞n=1εnancos(nt+φn),{εn} is a Rademacher sequence.
     卡昂纳JP研究了eλ|F|2的可积性,其中F是随机三角函数,F(t)=∑∞n=1εnancos(nt+φn),{εn}是Rademacher序列.
短句来源
     Let(X,0) be a random vector,X∈d, θ∈R1,and(X1,θ1).
     设(X,θ)是随机向量,X∈R~d、θ∈R~1;
短句来源
     Let (X,θ) be a random vector, X∈R~4,θ∈R~1, and (X_i, θ,)be i. i. d.
     设(X,θ)是随机向量,X∈R~d、θ∈R~1; (X_i,θ_i)是(X,θ)的i.
短句来源
     Let ξ be the maximal value point of unimodal objective functions f(x) in the interval [0, F_(n+1)], and let g_n(ξ) be Probability density functions of random variable ξ, ξ∈[0,F_(+1)], where the F_n are the Fibonacci numbers.
     设ξ是定义在(0,F_(x+1))上的单峰目标函数f(x)的最大值点,g_n(ξ)是随机变量ξ(ξ∈[0,F_(x+1)])的概率密度函数,其中F_n是斐波那奇数。
短句来源
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  相似匹配句对
     Random pulse generator
     随机脉冲发生器
短句来源
     A Random Pulse Generator
     随机脉冲发生器
短句来源
     Here we do not assum that the random is i.i.
     随机误差序列。
短句来源
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  a stochastic
We develop a method to estimate the power spectrum of a stochastic process on the sphere from data of limited geographical coverage.
      
This paper analyzes the aritrage-free security markets and the general equilibrium existence problem for a stochastic economy with incomplete financial markets.
      
This paper studies a stochastic endogenous growth model with pollution.
      
This paper deals with the problem of maximizing the expected utility of the terminal wealth when the stock price satisfies a stochastic differential equation with instantaneous rates of return modelled as an Ornstein-Uhlenbeck process.
      
A Stochastic Deterministic Model Predictive Control: Its Accuracy
      
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Two types of optimalizing control systems are analyzed and compared under random interferences. By means of approximation, the expectation values of hunting loss are calculated.

本文利用近似法求出两种极值調节系統在随机干扰影响下搜索損耗的数学期望,因而可以在具体条件下比較两种調节器的优缺点。在正态平稳随机干扰下,相关搜索法对較强的輸入端干扰是适宜的;反之,在較弱的輸入端干扰时,一般步进搜索法比較有利。計算結果也給出了在各种干扰强度下步进法的最佳步长及相关法的最佳搜索信号振幅,这些都是調节器的重要参数。

It is well know that symmetrical components are very useful in nubal anced voltages, short circuits and open circuits calculations. But under special conditions, special technique, such as modified symmetrical components, must be used in order to .meet special requirements. This paper illustrates a method of modified symmetrical components to analyze the operating characteristics of an inverted Y-connected induction motor find shows how the trick is applied.

对称分子,(Symmetrical components),对於电压不均及意外短路(Shortcircuits)及断路(open circuits)等之计算,极感方便,早为吾人所熟知,无庸赘言.然遇特种问题时,必须随机应变,以期达到融会銮通之效.本文即采用“变通对称分子”,(Modified Symmetrical components),分析普通三相感应电动机,在倒接Y式情形下之运用效能,并示其巧妙之处.

In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions....

In connection with experiments on the control of the rice stem borer, aseries of observations were conducted in 1949 to 1952 in Canton to determinethe form of the distribution of the moth, the egg-mass and the larval popula-tions of this species. It was found that the moth and egg-mass populations inrice seed-beds are in essential agreement with the random distribution of thePoisson series. The larval population in spring-crop fields apparently conformsto the contagious and the negative binomial distributions. The larval population during hibernation period appears to be neither of the random distribution norof the contagious type but agrees with the negative binomial distribution. The population distribution of the injured stems, characterized by the ap-pearance of "dead-hearts" and "white ears" was also studied. The "dead-hearts"popolation in autumn-crop fields conforms with the contagious and the negativebinomial distribution. The distribution of the "white ears" is not at random. It iseither in essential agreement with the contagious or with the negative binomialdistribution, depending on the size of the sampling unit. Based on the form of population distribution the questions of sampling tech-nique, the design of field experiments, the transformation of data for statisticalanalysis, as well as the habits and control of insects have been discussed inrelation to the rice stem borer. Since the populations of larvae and "whiteears" differ significantly from the random distribution, a new technique forsampling has been proposed. It is hoped that this may be useful in the investi-gations on the relative effectiveness of control operations and for census purposes.

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过...

(一)本文就昆虫常见的数种集团分布:潘松分布、核心分布和负二项式分布的公式、性质和例子等略加讨论介绍。 (二)我们在广州附近对三化螟各时期和白穗、枯心苗的田间分布型式作了初步的调查,所得结果如下: 1.螟蛾和卵块在秧田上是随机分布的。 2.幼虫在本田分布不随机,符合核心分布和负二项式分布。 3.白穗在田间的分布不随机,1×1丛、2×2丛、……6×6丛各种取样单位型样本均符合负二项式分布,4×4丛、5×5丛和6×6丛三种取样单位型样本则更符合核心分布。 4.稻遗株内越冬幼虫分布不随机,亦不符合核心分布,但符合负二项式分布。 5.晚造本田枯心苗田间分布不随机,符合核心分布和负二项式分布。 (三)本文就昆虫集团分布型式的调查在实用上的意义,联系到三化螟来讨论,我们论及与虫害调查取样技术、田间试验设计、统计代换方法、昆虫生活习性和害虫防治等各方面的关系;其中取样技术方面,我们举出针对三化螟幼虫在本田和白穗不随机分布的取样新方法的尝试,希望对今后螟害调查工作有所帮助。 (四)最后,我们就一些昆虫分布的特殊问题加以论列,像密度对分布型式的影响,混合集团和环境因素的影响于昆虫集团分布类型等,就中说明了密度过大过 小时了解分布型式成为不必要的,因为极度的不均衡会回复为均衡状态的。

 
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