查询词典 random function

To a one-dimension case, the solution to the distribution of non-monotone function is given; to a two-dimension case, the transformation of random variable and the computation formula of its probability density are given when inverse transform has one value and multiple value, meanwhile, several deductive conclusions are obtained.

从一维与二维随机变量函数的分布的一般求法出发，对一维情形，给出了当随机变量函数非单调时其分布的求法；对二维情形，用随机变量变换的方法分别给出了当逆变换单值与多值时其分布密度的计算公式，并得到了若干推论。

But which are trivially insecure when any real function is substituted for the random oracle .

现实中还没有函数能够实现一个真正的随机预言机。

In this paper,under Random Interest Rate modeled with Wiener process,expectation and variance of present value function of increasing life insurance were obtained.

对随机利率采用W iener过程建模，得到了增额寿险保险金现值函数的期望和方差。

The Zetasizer Nano ZS is made in Marvern in England. It is the newest Zetasizer Nano ZS with the newest technology. Malvern Zetasizer Nano ZS90 is for the measurement of size, zeta potential of dispersed particles and the molecular weight of random coiled polymers. If it connect with the Autotitrator, it can measure zeta potential as a function of pH, conductivity or concentration of an additive, provides much greater insight into the processes involved in stabilizing or flocculating disperse systems.

英国马尔文公司生产的Zetasizer Nano ZS型纳米粒度仪是目前世界上技术最先进的纳米粒度仪之一，该仪器可以测定纳米材料的粒度分布、ZETA电位值，并可以进行蛋白质的熔点测定，及蛋白质等大分子和聚合物材料的分子量测试，如果与自动滴定仪相连接后，可自动测定粒度或Zeta电位随pH值、盐浓度或添加剂浓度等的变化趋势。

Objective To study different measure of potentill anserine extract to the relation between the effects of potentill anserine on pulmonary tissue structure of small rat and the VECF secretion function. Methods 40 Kunming small rats are divided into 5 groups at random. Control group and experimental group (4 groups), each eight.

目的 探讨不同剂量的蕨麻提取物对小鼠肺组织结构的影响与其VECF分泌作用的相关关系方法昆明小鼠40只，随机分五组，对照组及实验组，每组8只。

Otherwise, in this paper, the random walk of particles is processed on lattices of graphite in a layer i.e. hexangular lattices, which makes our study have some physical background. Thus our results have some instructional function theoretically on the study of graphite and benzenoid hydrocarbon.

另外，在本论文中，我们所研究的粒子是在石墨一层内的晶格即六角格子上的行走，这就使本文的研究具有一定的物理背景，从而对石墨和苯型烃的研究工作具有一定的理论指导作用和意义。

The main achievements of the project are as follows: 1 the hypothesis that a decrease in seed mass causes an increase in mean dispersal distance has been tested based on the experiments of weed dispersal by wind. The experimental results partly support the hypothesis. The results will help farmers to make an optimal strategy of weed control; 2 a statistic method for inferring probabilistic distribution function of a random variable has been developed, by which probabilistic distribution functions of weed species dispersal have been determined; 3 the reproduction structure of Bromus sterilis has been studied; 4 a more complex CA model with 25 neighborhood cells were built, which can simulate spread of a weed population. This work promotes developments in both theory and application of CA models; 5 the "mean law" in weed control has been proposed. Accordingly, the algorism of patch spring may be calibrated; 6 the "patch" and "true patch" have been mathematically defined so that herbicide can be efficiently applied; 7 simulation validates that initial configurations of weed will affect dispersal of its population and strategies of controlling it, or its distribution patterns affect its dispersal progresses.

主要完成的工作和取得的成果有：1）用实验证实了重量较轻的杂草种子并不一定飞得比较重的远，其结果有助于农民制订杂草的优化控制策略；2）发展了一种推断随机变量分布函数的统计方法并用它来获得了几个杂草种的扩散分布函数；3）对杂草Bromus sterilis的繁殖结构进行了研究；4）建立了一个具有25邻的较复杂的能模拟杂草扩散的CA模型，并在理论和应用方面促进了CA模型的发展；5）在杂草控制方面提出了&平均法则&，据此可对按块施药方法进行校正；6）精确地定义了&块&和&真块&以便在杂草控制中能更有效地使用除草剂；7）模拟证实杂草种群的初始配置影响其扩散和控制策略，或者格局影响过程。

Methods: form january 1995 to january 2005, 42 patients with acute respiratory failure (acute respiratory failure group) and 84 random sampling after esophagectomy and cardiectomy were studied. age, sex, smoke index, preoperative respiratory function, preoperative pulmonary and the other complications, hypoproteinemia, the site of anastomosis, duration of operation, postoperative analgesia, postoperative other complications were compared by logistic regression analysis.

将1995年1月～2005年1月期间食管癌、贲门癌术后发生arf的42例患者临床资料，与按1∶2比例随机抽取的同期手术后未发生arf的84例食管癌、贲门癌患者的资料做对照，应用logistic回归分析比较两组患者的年龄、性别、吸烟指数、术前肺功能、术前有无肺部合并症和其它合并症、术前有无低蛋白血症、吻合口位置、手术时间、术后是否镇痛、术后有无其它并发症等与术后发生arf的相关强度，推测可能导致术后arf发生的危险因素。

Random selected 60 patients ,then they were admitted for surgery treatment of Selective Decongestive Devascularization Shunt of Gastrosplenic Region and Splenectomy and Periesophagogastric Devascularization . Base on the difference of coagulation function, they were divided into two groups: Group A: The anticoagulated group ,29 patients , were administered Low Molecular Weight Heparin and Salvia Miltiorrhiza injection, Group B: The contral group, 31patients, were administered for the conventional treatment.

随机选取对肝硬化门静脉高压症实施选择性脾胃区减断分流术和脾切除加贲门周围血管离断术的60例病人，将其依据凝血功能分为A组：抗凝组29例(应用低分子右旋糖苷联合复方丹参注射液等进行抗凝治疗)，B组：对照组31例，未行抗凝治疗。

Methods: Random single blind method was used in clinical study to observe the clinical effect of YZD and compared with that of Ritalin. The dysmnesia model animal was used to observe the effect of YZD on learning memory function and cerebral monoamine neurotransmitter content.

临床研究采用单盲法随机观察益智丹与利他林的临床疗效；实验研究制作记忆障碍模型，观察益智丹对小鼠学习记忆功能和对小鼠脑组织单胺类神经递质含量的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。