周期

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。

Methods OS732 was treated with 10^(-5)MATRA for 6 days, then we observed cell morphology, counted cell number, analyzed cell cycles by flow cytometry and detected mRNA expressions of cyclinD (Dl, D2, D3), CDK4, P21 by semi-quantity RT-PCR. Treatmed with 10^(-5)MATRA, The nucleus of OS732 cells became small and condensed, and cytoplasms expanded.

用10^(-5)MATRA作用骨肉瘤细胞OS732， 6d后，进行细胞形态学观察、活细胞计数、流式细胞仪分析细胞周期、半定量RT-PCR检测细胞周期调控蛋白CyclinD(D1、D2、D3)、CDK4、P21 mRNA表达的改变。

For the purpose of saving energy and prolonging the lifetime of ad hoc network, this dissertation discuss the network lifetime in detail, and consider the lifetime and energy synthetically, provide a minimal energy cost maximal lifetime broadcast tree construction algorithm.

2针对移动Ad Hoc网络能量有效性问题，为了节省网络使用过程中的能量消耗，提高网络的生命周期，本文对网络的生命期问题，展开了详细的论述，同时又将生命期与能量消耗结合起来考虑，提出了一个最小能量最长生命周期广播树的构造算法。

In the chapter 3,we base on the existence of periodic solution ,using the method of linearization and applying the mean value theorem and the variation-of-constants formula, we get the sufficient condition of the exponential stability of periodic solution of a class of nonlinear functional differential system .

在第三章中，建立在系统周期解存在的基础上，利用线性化的方法，根据微分中值定理和常量变差公式，得到了一类非线性泛函微分系统周期解指数稳定的充分条件。

Under constant temperature 20℃, the critical photoperiod of Papilio memnon was ED 13h 11mm:10h 49mm, under constant temperature 25℃, the critical photoperiod was ED 12h 49 mm:11h 11min.

在20℃恒温条件下，美凤蝶的临界光周期为LD 13h 11min：10h 49min；而在25℃恒温条件下，美凤蝶的临界光周期为LD 12h 49min：11h 11min。

In view of the character of shearers drum lifting by memory program controlling,this paper analyzes various factors influencing sample period .

针对采煤机滚筒记忆程控调高的特征，分析了影响采样周期大小的诸多因素，以采煤机牵引行走位移作为采样间隔的标尺，给出了等位移间隔作为采样周期的理论值。

In our study, we found menadione has anticancer potential on human breast adenocarcinoma MDA MB 231 by weather cell cycle arrest, anti proliferation, or apoptosis. Low concentration of menadione (5.8μM) significant inhibited growth curve on breast cancer cells (MDA MB 231) but not breast cells (MCF 10A) by performing MTT and trypan blue cell counting. RT-PCR and western blotting showed menadione increase p21 gene and protein expressions but decrease cyclin E and CDK2 protein expression resulting in cell cycle G0/G1 arrest by flow cytometry.

MTT及生长曲线的实验，发现menadione在低浓度且长时间作用情况下，对在於人类乳腺上皮细胞癌(MDA-MB 231)是有明显的抑制作用，而在正常乳腺细胞(MCF-10A)则没有影响，在分子转录上及蛋白质表现方面也发现低浓度menadione处理24时能使MDA-MB 231诱发p21基因及蛋白表现量增加及cyclin E、CDK2抑制，再经由流式细胞仪分析也发现低浓度 menadione 处理24小时能使MDA-MB 231细胞周期GO/G1比例上升，造成细胞周期停滞，进而抑制细胞生长。

In addition, the new economic growth theory, theory of economic growth, especially economic cycle of Mensch, are significant. Conclusions:(1) The capitalist mode of production has ability to regulate itself;(2) Although in modern conditions, the economic development brings some changes to the economic cycle, this law still functions today;(3) The economic condition is important for any mode of economic grow, in any country, advantages and disadvantages can be transformed alternately;(4) the conclusion from comparison can be benefit to our socialist economic structure reforms and its construction.

文章的主要结论：资本主义生产方式具有自我调整的能力；现代经济条件下发达资本主义国家经济周期虽然出现了变形，但资本主义经济周期规律并没有消亡；经济条件对一国经济增长模式的形成及效果是重要的，一个国家在一段时期内形成的经济发展优势会随着经济条件的变化朝相反的方向的转化；无论是美国"新经济"的成功经验或是日本"后泡沫经济"的失败教训都将有益于深化我国社会主义经济体制改革和建设。

Specifically,- By using Melnikov method of perturbation criteria, the conditions of periodicparamtric perturbations to control chaos in Lorenz system are discussed.

具体可以分为：-利用微扰判据的Melnikov方法讨论周期扰动参数引导Lorenz混沌系统进入低周期轨道的参数条件。

A fast algorithm for computing the linear complexity and the minimal polynomial of a binary sequence with period 2〓p〓 is proposed, and generalized one for determining the linear complexity of a sequence with period p〓q〓 over GF .

提出确定周期为2〓p〓的二元序列的线性复杂度和极小多项式的一个快速算法，并推广为计算GF上周期为p〓q〓序列的线性复杂度和极小多项式的快速算法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。