负指数分布

因此在JM模型的基础上，提出了排错时间为负指数分布的软件可靠性模型及本模型的极大似然参数估计方法。

Based on JM model , we propose a software reliability prediction model involving fault-remove time which followed exponential distribution .

电梯对乘客的服务时间是相互独立的负指数分布；

The time that every batch passengers ' accepting server is negative exponential distribution which is mutual independence ;

系统中的n个部件是相互独立的，且每个部件的维修时间服从负指数分布。

Each component is independent , and the repair time of the components in the system are both exponentially distributed .

本文模型放宽了现行建模的假设，即不要求Web请求、Web服务时间服从负指数分布，并引入GI/G/N模型来刻画系统，从而克服了以往Web信息系统逻辑建模的一些缺陷。

The system model in this thesis broadens the existing modeling assumptions , that is , Web requests and the Web service time are not required to keep to the distribution of negative exponential .

针对n台可靠度负指数分布的设备组成的热贮备系统，其中转换开关的可靠度或者是常数或者是负指数分布的情况，建立了转换开关不完全可靠的热贮备系统可靠性模型。

The reliability model of hot stand-by system by consisted of n equipments possessing constant failure rate and a imperfect transform switch possessing constant reliability or constant failure rate is established .

在休假时间服从负指数分布情况下，讨论了到达点嵌入Markov链的结构、平衡条件和稳态队长。

We discuss the structure of the imbedded Markov chain at arrival points , study the steady condition , and the steady queue size .

研究结果表明：①Weibull分布与负指数分布均能较好描述过伐林区针阔混交林的直径结构；

The research results show that : ① Weibull distribution and negative index distribution can be applied to describe the diameter structure of the coniferous_broad leaved mixed stands ;

研究表明，在采用计时门限光分组组装算法的情况下，如输入IP流具有短程相关特性（ShortRangeDependent），则光分组的到达间隔时间呈负指数分布，光分组的长度趋于高斯分布。

The study shows that the arrival intervals of optical packets present a negative exponential distribution and the optical packet length tends to have the Gaussian distribution when the time-out based optical packet assembly algorithm is adopted and if the input IP traffic has short-range independence .

本文针对岩体结构面间距最常见的两种分布形式&负指数分布和对数正态分布，探讨了岩石质量指标（RQD）的Monte-Carlo模拟方法。

A Monte-Carlo simulation method of rock quality designation ( RQD ) is presented in this paper based on the negative exponential distribution and lognormal distribution for modeling the discontinuity spacings .

在这个模型中，未知Bandit过程是抽样时间间隔服从负指数分布，抽样值服从Erlang（2）分布，允许在任意时刻跳转的Bandit报酬过程。

This model includes an unknown Bandit reward process with unrestricted switching times , whose random sampling times have a negative exponential distribution and sampling values have an Erlang ( 2 ) distribution .

划分林层后，各层直径分布都遵从三参数的Weibull分布函数，C层同时遵从迈耶负指数分布函数，偏度和峰度系数均与林分直径成反比。

While the diameter distribution in each storey well followed the three-parameter Weibull distribution function , and the C storey also followed the negative index distribution function proposed by Meyer after the stories were divided , and both the skew and kurtosis coefficients were inversely proportioned to stand diameters .

由于静默期有延时，不能很好地保证静默时间服从负指数分布的特点，也不能保证任意一个20ms都发送一个数据包的特点。

Due to the delay in quiet period , we can not guarantee silent features time meet negative exponential distribution , can not guarantee any of 20ms sent a packet either .

提出了n/n~+或p/p~+硅外延层电荷密度ρ随x~（n-2）方式变化的正、负指数分布模型。

In this paper , we suggest positive or negative exponential model in which n / n + or p / p + Si epitaxial layer impurity charge density p changes with x ( n-2 ) .

岩体结构面间距的双参数负指数分布研究

Research on two-parameter negative exponential distribution of discontinuity spacings in rock mass

负指数分布排错时间的软件可靠性模型

A Software Reliability Model with Exponential Repair Time

试论矿单元序秩的负指数分布律负指数分布自由车流噪声的近似计算公式

A discussion on the negative exponential distribution of ordinal number of mineral units an approximate noise calculation equation

无信号交叉口主车流服从移位负指数分布下支路多车型混合车流的通行能力

Capacity of Minor Multi-vehicle-types Mixed Traffic Flow under Major Stream with Shifted Negative Exponential Distribution on Unsignalized Intersection

实验结果表明沙粒浓度沿距离沙面的高度呈负指数分布特征。

It has been found that the sand concentration shows a negative exponential profile along the height over the sand surface .

指出任何均匀分布族、负指数分布族和正则指数分布族都是最小化广义K-L信息的解。

It is pointed out that the uniform distribution , negative exponential distribution and regular exponential type distribution are the solution of this problem .

修理过程马上开始，经过一个负指数分布的修理时间后系统又重新进入正常工作状态。

A repair process then starts immediately , the system will back to the normal situation after a repair time which is exponentially distributed .

结合岩移参数，采用概率积分法以及负指数分布方程方法，进行地表沉陷预计，获得各种特定参数。

The surface subsidence prediction is made in methods of probability integral method and negative exponential distribution equation method according to rock movement parameter .

叙述预测微通道板工作寿命试验过程，指出微通道板工作寿命曲线服从负指数分布。

A test for prediction of MCP life-time is described and it is pointed that the life-time curve of MCP depends on negative exponent distribution .

介绍了湍流信道条件下光强闪烁的对数正态分布模型和负指数分布模型，仿真分析比较了两种信道模型条件下无线光通信系统的差错性能。

In this paper , the bit error rate performance of optical wireless communications based on the log-normal and negative channel model of optical power was analyzed .

文中还给出了计算机程序框图，并将M2模型模拟结果与据车头时距为负指数分布的M1模型的模拟结果作了比较。

Then the simulation flow chart is given . A comparison between the simulation results based on M2 model and M1 model ( exponential distribution model ) is made .

但这些算法都对随机网络弧长的分布加以限制，如要求其为连续分布或假定其为负指数分布等。

But these methods have put restrictions on the distribution functions of the arc length ( for example , assume that the arc lengths are continuously or exponentially distributed random variables ) .

假定部件寿命服从负指数分布，部件修理时间服从一般连续型分布。当两部件一个运行一个冷贮备时，修理工开始休假，每次休假时间服从一般连续型分布。

It is assumed that the failure time of each unit is negative exponential , the repair time of each unit is continuous and the vacation time of the repairman is also continuous .

接着，在假定可修系统中的每个部件是相互独立的，且工作时间和维修时间均服从负指数分布。

Assume that the working time and the repair time of the components in the system are both exponentially distributed , and each component after repair is ' as good as new ' .

另外，给定了正态分布和负指数分布的参数以一定的先验分布，在此基础上计算了它们的完全极大似然估计，得到了与贝叶斯参数估计形式非常相似的结果。

Additionally , we give some prior distributions to the parameters of the normal distribution and negative exponential distribution and calculate the totally maximum likelihood estimations . The results are similar with that of Bayes ' results .

在计算中，采用有限输入，随到随服务的概型，输入流和输出流各按泊松和负指数分布。

Suppose that the input and output are in Poisson and negative exponential distri-bution respectively , and the service takes as soon as interference appears , the text has used a queuing model with limited input for calculation .

假定休假时间和每个部件的修理时间为一般连续型随机变量，每个部件的失效分布为负指数分布。

It is the assumptions that the vacation time distribution of the repairman and the repair time distribution of each unit are continuous , the failure time distribution of each unit is exponential and they are different each other .