查询词典 controllable stochastic process

The information integrated pattern based on PDM/PLM in the course ofmanufacture is put forward. Under the constraints of building CAPP platform, thearchitecture of CAPP platform is established. The models of decision making andfunction for process planning are given. Then the development means of CAPP basedSmarTeam are extracted.3. The structure of modular product life cycle is established. Toward the divisionand planning of the General Modules oriented product family, theCAD/CAPP integrated model of flexible module based on feature and CAD/CAPPmapping model based on process planning match board are set up. The keytechnologies of Solidworks/SmarTeam/CAPP integration are studies.4. From the point of view of process match board and step match board, theprocess of creating to process planning match board is studied. As an example, themachining process planning of up beam of hydraulic press machines is used tointroduce the establishment of process planning match board by means of inferencebased on expert knowledge. The organize model about the process planning matchboard oriented product family is brought forward.5. The multi-decision methods of CAPP system based on analytic hierarchy aregiven.. On the basis of uniform data model, the sub-machining process planning ofpart is auto-created by means of analytic hierarchy, The step decision methods basedon AHP is put forward.6. For the design/manufacture information in the course of product life cycle, thetree structure based on Object-Oriented and static model based UML are founded. Themethod of establishing design/manufacture information management system isbrought forward. The commercial PLM software—SmarTeam is regarded asdevelopment platform, on basis of which, the design/manufacture informationmanagement system is built, and the multi-view mapping technique ofdesign/manufacture information model is studies.7. A computer-aided CAPP platform based on PDM/PLM is founded, and itsstructure, function, work flow is illustrated. Some example of the system areintroduced.

阐述课题提出的目的和意义，明确了本文研究的主要内容。2、提出基于PDM/PLM的制造过程信息化集成模式；在平台式CAPP系统的设计约束模型基础上，构建了平台式CAPP系统的体系结构；并给出工艺决策模型和功能模型；最后提出基于SmarTeam的CAPP开发模式和实现策略。3、建立模块化产品生命周期模型的组织结构；针对面向产品族的广义模块的划分和规划方法，建立基于特征的柔性模块CAD/CAPP集成模型及基于工艺模板的CAD/CAPP映射模型；研究Solidworks/SmarTeam/CAPP集成的关键技术。4、从工序模板和工步模板的角度研究了工艺模板的创建过程；以液压机上梁模块机加工为例，采用基于专家知识的推理技术实现了工艺模板的创成；提出了面向产品族的工艺模板分层结构树的组织模式。5、提出基于分层规划的多模式工艺决策流程；在统一数据模型的基础上，从特征层和零件层分层规划，实现了零件加工子工艺的自动创成；提出基于AHP的工步排序决策方法。6、针对产品生命周期中的设计/制造信息，建立了面向对象的类树结构和基于UML的静态结构模型；提出基于PDM/PLM软件的设计/制造信息管理系统的构建方法；以商品化PLM软件SmarTeam作为开发平台，开发了基于SmarTeam的设计/制造信息管理原型系统；研究设计/制造信息模型多视图映射机制。7、开发了基于PDM/PLM的平台式CAPP原型系统，构建了系统的功能模型，并对系统的主要功能进行说明，给出系统的运行实例。

Multitasking operating systems come in two flavors: cooperative multitasking and preemptive multitasking. Linux, like all Unix variants and most modern operating systems, provides preemptive multitasking. In preemptive multitasking, the scheduler decides when a process is to cease running and a new process is to resume running. The act of involuntarily suspending a running process is called preemption. The time a process runs before it is preempted is predetermined, and it is called the timeslice of the process. The timeslice, in effect, gives each runnable process a slice of the processor''s time. Managing the timeslice enables the scheduler to make global scheduling decisions for the system. It also prevents any one process from monopolizing the processor. Bs we shall see, this timeslice is dynamically calculated in the Linux process scheduler to provide some interesting benefits.

多使命操作体系可化分为两类：非抢占式多使命以及抢占式多使命所有像Unix的变种体系以及很多现代操作系同同样，Linux提供抢占式的多使命模式在抢占式多使命模式中，调度步伐决议啥子时候进程中止，新的进程能够开始得到运行这个被强制挂起的动作就叫做抢占进程在被抢占前，运行的时间是预知的，这个时间叫做时间片究竟上，时间片是为每一个运行态的进程分配处置惩罚器的时间的一片管理时间片，使能调度步伐为体系做好整个的局面：胸怀～调度决议时间片也能阻止任何一个进程垄断处置惩罚器正如我们看到的，在Linux进程调度步伐中时间片是蜂蜜面膜动态计算出来的，这样带来很多利益

The stochastic channeling is the phenomenon of stochastic process which needs to be further studied.

随机沟流是有待进一步研究的随机过程现象。

In this dissertation, we develop the research work of the following three aspects based on existed work.First, using the scale-invariant property of multiscale model, i.e. Markovian among scales, a method of qth-order tree-based for multiscale representation of a class of 1-D stochastic process is presented. The multiscale stochastic model is established. The representation forms of parameter matrices, such as, the state transition matrix, the disturbance matrix, the initial state and the corresponding covariance matrix are deduced in detail. The multiscale sample paths based on distinctive order tree are presented by computer simulation.

本文在已有工作的基础上，开展了以下几个方面的研究工作： 1、根据多尺度模型尺度不变性，即利用尺度间的Markov性，给出了一类1-D随机过程基于一般q阶树的多尺度表示方法，建立了相应的多尺度动态模型，详细推导了多尺度模型中的状态转移阵、扰动阵、初始状态和相应的协方差阵，并通过计算机仿真给出了不同阶树的多尺度采样路径。

Students who take this course should have strong background consists of probability, stochastic process and stochastic analysis.

学生应具有较强的概率论、随机过程和随机分析的基础。

The relationship between stochastic Petri Nets and basic stochastic process is analyzed.

分析了随机Petri网和基本随机过程的关系，讨论了各类随机Petri网的求解方法。

The fading characteristic of wireless channel is modeled as stochastic process rather than stochastic variable as used in usual method.

在此将无线信道的衰落建模为随机过程，而不是通常的确定性随机变量。

As the second part of our research, the effect of stochastic dephasing on quantum coherence and quantum entanglement has been analyzed, and we find that quantum entanglement relies on the fluctuation of random variable in stochastic process.

另外我们分析了几何相在随机过程中的改变：发现几何相的改变不仅依赖于随机变量的涨落，而且依赖于系统的频率。

In order to decrease visual delay in virtual reality, we studied and analyzed the testing results of all sorts of human being head motion. We put forward that the head moving of human being is a Guass-Markov stochastic process and constructed a stochastic mathematics model for head motion. We also proposed an effective algorithm for head-moving prediction based on Kalman filtering and preprocessing of the measured data.

为了克服虚拟现实系统中的视觉延迟现象，在对各种头部运动规律测试结果分析研究的基础上，提出人的头部运动是具有高斯－马尔可夫特性的随机过程，建立了头部运动的随机数学模型，设计了基于卡尔曼滤波和测量数据预处理技术的头部未来位置预测算法。

The process reuse architechure raised in the paper both support abstract process model cycle and practical process instance cycle mechanism, which can realizes dymamic improvement for both organization standard software process and practical project software process. So, the process reuse architecture provides necessary support for application of process improvement technology.

本文提出的过程复用框架同时支持抽象过程模型层面以及具体过程实例层面双重循环机制，可以实现组织标准软件过程和具体项目实例的动态改进，为CMM过程改进提供了一种具体的实施技术和方法，对过程改进技术的应用提供了必要的完善和补充。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044