查询词典 marginal distribution density function

The paper analyses the mode of expressway network charge distribution and existing questions, in view of the questions that go against regional highway network coordinated development, puts forward new theory and method of expressway network charge distribution; making use of game theory, constructing the model of expressway network charge distribution which has breakage risk and multi-people bid in turn, and analyzing characteristics of the model and advertent questions in application.

论文分析了现行高速公路网收费收入分配模式及其存在的问题，针对现行收入分配模式存在的不利于区域公路网协调发展的问题，提出了新的高速公路网收费分配理论和方法；运用博弈论理论，构建了具有破裂风险的多人轮流出价的高速公路收费收入分配模型，并分析模型的特点和模型应用注意的问题。

For exponential distribution, the acquired estimate expression is the same as the result obtained by other method in reference [8]; for Weibull distribution, the author prove that γ satisfies a non-linear equation and λ is afunction of y; for lognormal distribution, a iterative algorithm for parameter estimation is proposed, which is the expansion of some results in Wolynetzs Ph.D. thesis.

对指数分布，得到的估计表达式与文献[8]中使用其他方法得到的结果相同；对Weibull分布，论文证明了参数γ满足一个非线性方程，而λ则可以直接由含有γ的表达式求出；对对数正态分布，论文给出参数估计的迭代算法，这可以看成是Wolynetz博士论文结果的推广。

On species level, the geographical distribution, and distribution and diversity centers of Aletris L. were studied and the causes for its origin and speciation as well as its modern inter—continent discontinuous distribution were explored .

本文在种的水平上，研究了粉条儿菜属的地理分布及其分布中心和多样化中心，并对其起源和分化以及现代洲际间断分布格局的成因进行了分析。

There are totally 877 genera of angiospermae in Dongjiang, which could be divided into 14 distribution types and 16 varieties according to modern distribution center. And the pantropical distribution patterns and their varieties are the most, which have 204 genera (24.89%).

东江流域植物区系有种子植物877属，可以按其现代分布中心划分成14个分布区类型和16个变形，其中泛热带分布及其变型最多，共有204属，占总属数的24.89%；其次是热带亚洲分布，共有118属，占14.39%。

Two kinds of N-node tandem open queueing network system with exponential distribution are analyzed in this paper . The generater matrixes of Markov process are given in recurrence formulate.Seperately, the solution of the system stability,the stationary combinable distribution of each node queue length and the busy time distribution is obtained by means of matrix analysis in the second mo del. Moreover we gave out the Matlab program for sloving the system stability solution .

在本文中，我们主要研究了两类服从指数分布的有限容量的N级串联排队系统模型，分别采用递推的方式给出了高维马尔可夫过程的转移矩阵，在本文模型二的假设下利用矩阵分析方法进行求解，得到了该系统的稳态解及其系统各级队长的稳态联合分布，系统忙期长度分布等其它指标，且给出了求稳态解的Matlab程序。

Treating with coils as aeolotropy, this paper brings forward a set of mathematical mode for computing internal stress distribution of coil in the process of coil coiling, in which some factors are taken into account, such as the transverse distribution of shape, crown and curl tension of the strip, the friction between the strip and the reel, the friction between strips, and etc. Because the reel shrinkage and the inner circle of the strip losing radial restrain and circumferential restrain can induce interlayer slipping and the change of the whole coil compactedness , the assumption concerned ——"virtual reel" in the process of coil uncoiling is put forward, which takes the form of slow action to express the uncoiling process and, therefore clearly simulates the variation course of internal stress distribution of coil in the process of coil uncoiling.

考虑到带材板凸度、卷取张力的横向分布以及带材与卷筒之间、带材与带材之间的摩擦力等因素的影响，并将钢卷按各向异性体处理，提出一套计算卷取过程中钢卷内部应力分布的数学模型；同时考虑到卸卷过程中由于卷筒的收缩，钢卷内圈失去径向和周向约束而引起层间滑移及整个钢卷紧密程度发生变化，提出钢卷卸卷过程中有关&虚拟卷筒&假设，将卸卷过程以&慢动作&的形式表示出来，清楚地模拟出卸卷过程中钢卷内部应力分布的变化历程。

Except for the first chapter and the second chapter,the study evolves four levels. The first level describes the investment structure and distribution of listed firms.This chapter studies the investment characteristic from several anagles,such as investment component,distribution condiction,time characteristic,and analysises the investment distribution of different size,year and industry.

除了第一章的&绪论&、第二章的&文献回顾&和第九章的&结论与研究展望&外，本文的研究工作主要在四个层次上展开：第一层次：描述了上市公司投资支出的结构和分布特征，从不同的视角研究我国上市公司的投资行为特征，包括投资的构成、分布状况、时间特征，并分析不同规模、年度、行业上市公司的投资分布状况。

There were seven glandular organ artery of superior thyroid artery distribution patterns with the L1R1 predominant (37.25%), five non-glandular organ artery of superior thyroid artery distribution patterns, and three kind branches (laryngeal artery, cricothyroid artery and sternocleidomastoid artery), and two distribution patterns of inferior thyroid glandular organ artery.

本研究共统计分支类型：甲状腺上动脉腺体支7种，左右各1支(L1R1)最多见(37.25%)，非腺体支5种分支类型，3种分支，即喉上动脉、环甲动脉及胸锁乳突肌动脉，甲状腺下动脉腺体支2种分支类型。

However, this does not disprove that short changes in intensity or direction of the Kuroshio ever occurred at certain short cooling events. The 10Be minimum during the Younger Dryas event may indicate that the Kuroshio had been once greatly weakened or even terminated in the Okinawa Trough area which could be related to the response of the Pacific Ocean to the Younger Dryas. The 10Be and 9Be in surface sediment show totally different distribution patterns. The 10Be distribution is dominated by the input from Kuroshio and its branch, the Yellow Sea Current, whereas 9Be is mainly influenced by terrestrial input of suspended materials from the Yellow River discharge and deposited in the fine-grain size sediment zone southwest of the island of Jeju. Both 10Be and 9Be distribution patterns are different from anthropogenic pollutants such as heavy metal Pb which is dominantly distributed closely to the coastal areas.

冰期时冲绳海槽北部10Be的沉积通量远远高于太平洋大洋海区，充分反映了黑潮的传送带作用和边缘海的聚焦沉积作用，并表明末次冰期时在千年尺度上黑潮仍流经冲绳海槽，且强度并未减弱。10Be的通量在新仙女木时降到整个岩芯所跨时期的最低点，甚至低于10Be的现代大气平均生产率，因此推测在新仙女木事件时，黑潮的变动特别大，有可能改向或断流。

City distribution system is begin from distribution substation, nature gas flows through dust exhauster, dump valve, flowmeter odorizer and then through all levels of distribution network directly to the consumer according to the requirement.

而城市配气系统又是从配气站开始的，天然气在配气站内经过除尘、调压、计量、添味后，然后通过各级配气管网和气体调压装置保质保量地根据用户要求直接地向用户供气。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。