查询词典 exponential distribution

Besides, we use Kohlrausch-William-Watts stretching exponential function for radiative decay curve fitting to determine the degree of lifetime distribution.

另外，我们利用Kohlrausch-William-Watts 公式来决定生命周期分布的程度。

In this study, for the complicated distribution of dose rate in time and space, considering the repair of the sub-death cells, the radionuclide decay law and exponential proliferation of clonogenic cells, the dose-response relationship is built based on the known linear-quadratic model, and the concept of tumor control probability is introduced into the therapy method. Furthermore, the concepts about "curable stage" and "critical time point" and the methods calculating the amount of radionuclide injected into tumor in clinical are proposed.

本课题针对这一方法中靶区复杂的剂量率时-空分布特点，以公认的"线性-二次模型"理论为基础，同时考虑亚致死性细胞修复、核素衰变规律和克隆原性细胞指数增殖，建立了适合这一治疗方法的具有时-空分布特点的剂量效应关系，并进一步将肿瘤控制概率的概念引入这一方法中，提出了"治愈期"及"临界时间点"的概念以及由此指导临床确定药物注射剂量的方法。

The vertical concentration distribution is obtained for the mixed layer and free atmosphere for which the fitting from a linear and an exponential decay law, respectively, leading to the lapse rate of ～ 64cm〓 per 100m rise for the concentration in the mixed layer over the study region.

大气气溶胶粒子在逆温层下存在明显累积，混合层和自由大气中分别随高度线性和指数递减，辽宁地区混合层内垂直递减率约为-64cm〓/100m。

Because the time series generated from finite difference equation with chaos may also possess exponential distribution of probability density. Additionally, irregular dynamics has ever been attributed to the presence of stochastic noise in many systems, but actually it may result from chaotic process in deterministic system.

近年来对非线性动力系统的深入研究发现：观察到某一过程具有指数型概率密度事件分布并不足以确定它就是泊松过程，由具有混沌行为的有限差分方程所产生的时间序列也可具有指数型概率密度分布；在许多系统中，过去归因于随机噪声的不规则动力学特性，实际上很有可能是由确定性系统中的混沌过程所致。

Firstly, the optimality of identical sensor system for the exponential distribution family has been verified.

首先，我们确证了全同感测器系统在指数分布族的参数辨识问题上的最佳性。

The exponential distribution family and minimum error theory are brought to bear combined with fact.

针对小样本和小失效数给系统可靠性分析带来的难度，以及可靠性分布函数和参数估计的不确定性和模糊性，运用指数分布族、最小误差原理等相关理论，结合实际工程经验，对这类系统的可靠性分析提出了一种新的方法。

First, we obtain the empirical Bayesian estimator of the scale parameter for the double exponential distribution based on LINEX loss function and the convergence rate of the estimate.

首先利用非对称的LINEX损失函数对双指数分布族刻度参数进行了经验贝叶斯估计，并讨论了该估计的性质，给出了收敛速度。

There is no glow peak from Dy3+. The decay characteristics of phosphors Y2O3:Eu3+0.01,Dy3+0.01 accord to Double exponential distribution.

热释光谱分析表明Y2O3：Eu3+0.01 中存在陷阱能级，但其没有余辉，即存在陷阱能级的样品不一定就会长余辉发光。

These data indicate that the tempering hardness change show as two obviously different stages, i.e. fast decrease and slow decrease, during austempering for quenched and tempered steels. This change rule can be described with a double exponential distribution functional relationship: H=aesuperscript -b(Tt+cesuperscript -d

这些数据表明，调质钢等温回火时的硬度下降表现为快速下降和缓慢下降两个明显不同的阶段，这一变化规律可以用双指数函数H=ae上标-b

Both exponential and Erlang distribution models for irrigation events are developed.

研究了指数分配和非指数分配模型及10个连续的灌溉周期。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。