过程网

Considering minimization of total wire length as the objective, it allows virtual blocks to transform into rectilinear shapes without overlaps and selects the optimum shapes for virtual blocks. It is based on the dead space block assignment and pin allocation during the process of packing.

该算法以线长最小化为目标，通过在位置优化过程中对虚拟模块进行无重叠的直角多边形变形来实现虚拟模块的形状优化，形状优化过程是基于模块填装过程中的空白区分配算法和引脚分配算法，并以降低线网在半周长模式下的线长下限为其主要理论依据。

For managing product development process of industrial enterprise in effect, method of constructing process model based on ProA modeling unit is put forward based on applying IDEF0, hierarchy Petri nets, object-oriented and analyzing relationship between activity and process.

为了有效对制造企业产品开发过程管理，在应用IDEF0模型、分层Petri网和面向对象设计方法并在分析活动和过程关系的基础上，提出了基于活动及其实现过程建模单元的过程模型的建立方法。

The concept , main composition and key technologies of the deep space network are introduced. The DSN's meaning and application to radio astronomy and space detection are summarized. Last, the prospect of DSN is discussed.

阐述了深空网的概念、主要任务、发展简史、主要构成和关键技术手段，概括总结了深空网在天文观测和空间探测中的意义及应用过程，展望了深空网的发展前景。

To use the Petri Nets graphical modeling sententiously and intuitively, the thesis is about the way to using Visual C++ development environment to develop a constitute and debug tool found on the Petri Nets GUI. The essential request is the stabilization of running, the simplicity of operation, the friendliness of the User Interface, and the utility and sufficiency of the functions. Users can draw and edit the Petri Nets model diagram through the standard GUI, and also can observe and debug the migration. It is also helpful to promote the applications.

为了更好的利用Petri网简洁、直观的图形建模方法，本论文旨在通过Visual C++开发环境开发一款基于图形界面的Petri网模型建立和调试工具，其基本要求是：运行稳定，操作简单，界面清晰友好，功能实用够用，用户可以通过标准图形界面的方式绘制，编辑Petri网模型图，并对其迁移过程进行观察和调试，便于推广应用。

To use the Petri Nets graphical modeling sententiously and intuitively, the thesis is about the way to using Visual C++ development environment to develop a constitute and debug tool found on the Petri Nets GUI.

为了更好的利用Petri网简洁、直观的图形建模方法，本论文旨在通过Visual C++开发环境开发一款基于图形界面的Petri网模型建立和调试工具，其基本要求是：运行稳定，操作简单，界面清晰友好，功能实用够用，用户可以通过标准图形界面的方式绘制，编辑Petri网模型图，并对其迁移过程进行观察和调试，便于推广应用。

During the process of solving power flow, the incremental transmission loss of each node can be easily obtained by means of simply solving the transposed matrix of original n-order matrix.

介绍了一种基于直流潮流的网损微增率新算法直流雅可比矩阵法，该方法以直流潮流为基础，引入虚拟网损负荷变量并构造出带有松弛负荷变量的有功不平衡方程雅的可比矩阵，在解潮流过程中只需求解n阶矩阵的转置矩阵，即可获得各个节点的网损微增率。

As we have learned," the times austral the division " of go-between content part define option oneself very much; Special also on task gut make great efforts; Warfare system sense of reality is very strong, not be to rely on a mouse to choose the enemy madly only can get victory, need has held the most appropriate attack position, openly attack, left attack and on the right side of attack is distinguished somewhat, mouse, clavier, brain needs to be used when fighting; The collocation of profession and weapon comparatives diversification, in addition the freedom of PK is spent very tall also.

魔兽世界》到现在已经4岁了，遭遇到的威胁也绝不仅仅是5款游戏，为什么《魔兽世界》能创造出屹立不倒的神话呢？这网游和单机游戏虽然都是PC平台的，可是实际操作起来差别却不是一点半点：网游吸引用户很重要，但是运营网游是一个长期的过程，更加重要的是把来之不易的用户留住。2008年的《科南时代》和《战锤OL》在前期吸引用户这方面都是比较成功的，但是往后用户的存活率比较低，不少都又被《魔兽世界》给抢走了。

First,the maximum likelihood decoding theory is adopted to correct the aberrated alarm.Toovercome the drawbacks of traditional models based on Petri nets,a new diagnostic modelbased on the elementary net is built.Then correct alarms are fed into the new model tocarry out the diagnosis process.

首先采用最大似然译码原理对监测到的信号进行信息校正，然后针对现有Petri网故障诊断模型难以准确模拟实际故障清除过程的问题，建立了基于基本网理论的故障诊断模型，并利用编码基本网理论对无畸变的信号进行故障诊断。

Its rule of change was obtained. On the basis of other studies, the flocculation kinetics and flocs structure was studied. By making some assumptions, collision frequency were presented. Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict flocs number and size during flocculation of Yellow River's loess particles without using empirical parameters. The TEM and SEM were used to obsever flocs in the study of floc structure. The flocculation was divided as flocculi, floc and floc aggregate. The flocs structure model was established by assumption that particles position in floc accords with tetrahedron. The fractal dimension of model and experimental flocs was found to be coincident. So the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent.

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能眵反映高分子絮凝黄河泥沙生成的絮体结构。

Its rule of change was obtained.On the basis of other studies,the flocculation kinetics and floes structure was studied. By making some assumptions, collision frequency were presented.Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict floes number and size during flocculation of Yellow River's loess particles without using empirical parameters.The TEM and SEM were used to obsever floes in the study of floe structure.The flocculation was divided as flocculi,floc and floe aggregate.The floes structure model was established by assumption that particles position in floe accords with tetrahedron.The fractal dimension of model and experimental floes was found to be coincidentSo the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符西安建筑科技大学博士学位论文合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能够反映高分子絮凝黄河泥沙生成的絮体结构。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。