Vrml file is used to express the cad model and xml file to store the assembly layer information and assembly process . a system frame based on b / s is proposed to realize the browse of 3d model and assembly process in distributed environment 采用vrml文件作为基于web的三维设计模型,并结合xml作为cad系统中装配层次信息的表达及装配工艺序列的存储载体,在b / s结构的浏览器端利用java3d和applet技术实现三维设计模型的浏览及装配工艺模型的可视化。
The author will study the collecting channels which should be managed by the governments in dealing with the public crisis information , mainly from the level of administrational management as well as combining with the author personal working experience , in order to supply the omni - directional and multi - layers information and channels for the theoretical and practical research fields , and to supply more comprehensive and objective information for the scientific decision - makings , therefore to resolve effectively the problem about the prediction , early - warning and precautions of the crisis 作者主要是从行政管理学的层面,结合自己的工作实际,对应当由政府管理的公共危机信息的搜集渠道进行有效的研究,从而为理论界、实践界提供全方位、多层次的信息搜集渠道,为科学决策提供更加客观、全面的信息,以有效地解决危机的预测、预警、预报问题。
For modern communication chamber , it ' s very important for management to get the condition of these chambers and prevent fire . now supervising modern communication rooms " condition is developed towards multi - way integration , combination of supervising - diagnostic - maintenance determination and network , and then condition supervision has typical character of information fusion . the quality of information could be improved by making full use of multi - datasourse inter complementarily and redundance . the problem such as much quantity , extensive distribution , supervisement , diagnostic and management and so on could be settled through network , at the same time the remoted condition supervising system based on multi - sensor multi - layer information fusion could be realized conveniently 当前现代机房的状态监测正朝着多种方法集成、监测?诊断?维护决策相结合以及网络化的方向发展，使得状态监测具有典型的信息融合特征，充分利用多源数据的互补性及冗余性来提高结果信息的质量；通过网络解决系统测点数量多、分布广、监测、诊断、操作和管理困难等问题，使基于多传感器、多层次信息融合的远程状态监测系统得以方便地实现。
The main research contents of this thesis are as follows : firstly , translating the cad model to vrml file and utilizing the java3d and applet technologies to browse and operate the 3d geometry model based on the web . secondly , utilizing xml file to express the assembly layer information and transmitting the file over the network to realize the integration of cad and capp system . thirdly , the information of assembly list of the 2d drawing is recognized and transported to xml file , which could be easy to be integrated with the capp system 具体研究内容如下: 1 )将cad系统中的三维装配模型转换成vrml文件,利用java3d和applet技术实现其基于web的浏览并可以进行交互式操作; 2 )用xml存储装配模型的层次信息,并通过网络传输实现cad与capp系统的信息集成; 3 )在装配设计领域,对二维装配图纸中的明细表信息进行识别和提取,导出成xml文件,可与capp系统进行集成,并实现二维设计图纸的网络浏览; 4 )实现cad系统中得到的装配工艺文件的网络传输,在capp系统中显示出装配序列,实现三维模型的装配序列可视化;对于装配碰撞干涉问题,本文研究了java3d中的解决方法。
Ce provides comprehensive and multi - layered information solution and applications services for more than 200 , 000 enterprises . total of 68 branch offices nationwide , including beijing , shanghai , chongqing , shenzhen , guangzhou , etc . and more than 7000 staff . for more information visit 现已在全国60多个城市设立了分支机构，拥有7000多名员工， 4000多人的商务团队，多达600人的技术研发队伍，已为20多万家企业客户提供了全方位标准化一站式的it应用服务和电子商务解决方案。
The purpose of this paper is to underscore the importance for web - based information service systems to emphasize end users " information needs , provide user - friendly interfaces , enhance the quality of service , and validate the criteria for service charges , with a view to accommodating users " extensive , dynamic , synthetic , and multi - layered information needs and diverse means of information search . on the other hand , end users oug 本文选题的目标在于提出，基于www的信息查询服务系统必须重视最终用户的信息需求，提供方便、友好的查询界面，并从最终用户的消费能力和利益出发制定合理的收费标准，不断地优化信息服务质量，以满足用户信息需求的广泛性、动态性、综合性、多层华东帅范大学硕七学位论文信息学系张怡性以及查询信息手段的多样性等特点。
It is a leading internet asp in china , committed to driving the development of the country s e - commerce . ce provides comprehensive and multi - layered information solution and applications for over 200 , 000 enterprises in the country . it operates more than 60 branch offices nationwide , including beijing , shanghai , chongqing , shenzhen and guangzhou , supported by staff of 7 , 000 现已在全国60多个城市设立了分支机构，拥有7000多名员工， 4000多人的商务团队，多达600人的技术研发队伍，已为超过20万家企业客户提供了全方位、标准化、一站式的it应用服务和电子商务解决方案。
The introduction part of this paper first presents the background and the purpose of investigation in simulation algorithm and also the basic framework of arithmetic , and then , it introduces the original principle of the arithmetic and makes a close analysis of the main models : ( l ) gives a concrete yarn simulation algorithm based on yarn ' s shade model ; ( 2 ) considers of fabric model and puts forward the simulation algorithm for simple fabrics ; ( 3 ) with consideration of the complicated textile , presents the algorithm of computing surface layer information based on dividing weave matrix into cells and combines the artificial intelligent technology to propose a framework to get the information of the textile surface . in the end , the paper presents the after - effects of the simulation and the way of arithmetic optimism as well 论文的绪论部分综述了织物模拟算法研究的历史背景以及应用前景，提出了算法的基本框架结构，然后阐述织物模拟算法的基本原理，并对各主要模型进行了分析： ( 1 )基于纱线的光照模型，给出了纱线模拟的具体方法； ( 2 )综合考虑影响织物外观的重要因素，进一步给出了简单花型织物的模拟算法； ( 3 )针对复杂织物，给出了基于织物组织单元化的表层信息提取算法，并提出了结合人工智能技术进行织物表层信息判断的解决方案框架；最后，提出了模拟效果后期处理以及算法优化的方法以提高织物模拟处理速度。
Ce provides comprehensive and multi - layered information solution and applications services for more than 200 , 000 enterprises . total of 68 branch offices nationwide , including beijing , shanghai , chongqing , shenzhen , guangzhou , etc . and more than 7000 staff . for more information visit 现已在全国60多个城市设立了分支机构，拥有7000多名员工， 4000多人的商务团队，多达600人的技术研发队伍，已为20多万家企业客户提供了全方位、标准化、一站式的it应用服务和电子商务解决方案。
By using it , the section mapping drawings of multi - types & complex pipeline system can be automatically generated through the entity crossing operation . this method composes of the following three key steps . in the first , different graphic entities are identified from the complex pipelines drawing in terms of the layer information they owned , then the correspondent information is to be encapsulated to keep the spatial data completeness of the graphic symbols 该方法通过管线系统设计图中的图形实体的分层处理与信息封装，首先实现了复杂管线实体的自动识别并确保了图形实体具有对应管线实体对象的完备空间信息；在此基础上，根据用户给出的任意位置截切线，构造隐式描述的截切面并与隐式描述的管线实体进行求交运算；最后通过对求交结果的坐标变换，生成能够直观反映出多类型复杂管线系统空间分布信息的截切面映射图。
