系统信息
- 与 系统信息 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The thesis studies the difference between GWSs composition and traditional workflow applications, proposes the implement mechanism and technical architecture of GWSs composition and defines the reference model of GWSs composition platform, which provide holistic framework and top-level guidance for studying dynamic GWSs composition technology, designing GWSs composition platform, and implementing representative composite service applications.2、Theories and methods of composite process modeling and process analysis. This thesis proposes a meta-model of Geo-spatial Web services composition process defining from two aspects, i.e. process and resource. According to the process definition meta-model, we propose a new Geo-spatial Web services composition Process/Resource model based on extended WF-net, which effectively resolves the problems on uncertain activity option and dynamic variation of service in composite process model. A notion with regard to soundness of process model is proposed from three aspects, i.e. the structural correctness of process model, validity of data link and validity of resource. The notion of soundness definitely gives a dividing line on correctness of composite GWS process. This thesis analyzes sufficient and essential terms of soundness, and studies compositional property of WSCP/R-net models which provides an effective method to construct a soundness WSCP/R-net model. According to WSCP/R-net, the thesis proposes composition algebra and studies the properties of it. Based on the composition algebra, 6 kinds of composite process reduction rules are induced to optimize the process.3、Geo-spatial Web service QoS model and its application architecture. This thesis proposes an extendable GWS QoS model from three aspects, i.e. Geo-spatial Web Service itself, networking conditions and service consumer which can be used to distinguish GWSs with overlapping or identical functionality. We work over the QoS evaluation methods of composite GWS process which can be used to guide the execution, monitor and service selection of composition process. Aming at some disadvantages in traditional Web service discovery model for its lacking of QoS supporting, this thesis proposes a new service discovery model SDMQ supporting QoS constraints.4、Technologies of composite service executing. SSPL, a new composite service process language, is defined to overcome the disadvantages of existing composite services process languages which can not adapt to the dynamic variation of Geo-spatial Web Services. An algorithm is described to translate WSCP/R-net model into SSPL. The thesis studies the model of dynamic services selection with QoS global optimization, presenting an algorithm GODSS to resolve dynamic services selection with QoS global optimization in GWSs Composition.5、Design and implement experimental system and representative applications. According to the research findings presented above, we design and implement an experimental system and construct two representative applications to show that our achievements are effective and practical.
针对当前空间信息服务聚合研究中存在的若干不足,本文重点在基于工作流的空间信息服务聚合框架、空间信息服务聚合流程建模和分析技术、空间信息服务QoS模型及应用体系以及空间信息服务聚合流程执行等几个方面进行深入研究,主要工作和创新点包括:1、基于工作流的空间信息服务动态聚合框架:研究了空间信息服务动态聚合和传统工作流应用的不同,在此基础上提出了基于工作流技术的空间信息服务动态聚合实现机制、技术体系和参考模型,为研究空间信息服务聚合的关键技术、开发服务聚合支撑平台以及在此基础上构造特定的空间信息服务聚合应用提供了总体框架和顶层指导。2、空间信息服务聚合流程建模和分析技术:首先基于动态服务聚合流程建模的需求和空间信息服务动态变化的应用实际,从服务聚合的过程维和资源维出发定义了服务聚合流程定义元模型;与之相对应,对基本的WF-net进行扩展,提出服务聚合流程/资源网作为空间信息服务聚合流程的形式化描述模型,有效解决了现有的基于基本Petri网和工作流网的服务聚合建模方法所不能解决的不确定路径选择和服务的动态变化性问题;从流程结构正确性、数据依赖有效性和资源实现有效性三个方面提出了WSCP/R-net健壮性的概念,明确界定了聚合流程正确性的标准,并对WSCP/R-net模型的健壮性分析方法和WSCP/R-net模型的组合特性进行了研究;提出了空间信息服务聚合代数算子并对其性质进行了研究,在此基础上提出了6种聚合流程约简规则,从而可达到优化聚合流程、提高聚合流程执行效率的目的。3、空间信息服务QoS模型和应用体系:从服务本身、网络环境和服务消费者三个层次出发,提出了一个可扩展的空间信息服务QoS模型GSQM,实现了对空间信息服务的度量和评价,并对GSQM不同质量要素信息的客观、公正采集方法进行了研究;研究了空间信息服务聚合流程QoS评价方法,有效支持了空间信息服务聚合流程的执行、监控以及服务选择等操作;针对目前的服务发现模型仅支持服务功能性描述、不能有效满足空间信息服务应用需求的现状,提出了一种新的支持QoS约束的服务发现模型SDMQ,并对模型的实现框架进行了研究。4、空间信息服务聚合流程执行技术:针对现有的服务聚合流程描述语言不能有效满足空间信息服务动态聚合流程描述的特点,基于BPEL4WS提出了一种新的空间信息服务聚合流程描述语言SSPL;研究了满足健壮性要求的WSCP/R-net模型向SSPL的转换算法,在此基础上可以满足用户无显式编码来实现空间信息服务聚合应用的目的;研究了服务动态选择QoS全局优化模型,并在此基础上提出了一种解决服务动态选择QoS全局优化问题的实现算法GODSS.5、基于论文研究成果,设计实现了"空间信息服务聚合实验系统",并构建了"矿产资源评价"和"城市消防应急响应"两个典型应用案例,对论文所述模型、方法的可行性和有效性进行了验证。
-
The main idea of this thesis is that: As the information production system itself has problems, it's necessary to reallocate its " materials", which is also called " material reallocation".
本论文认为:生产会计信息的生产工具——会计信息系统本身存在问题,有必要对会计信息系统的"资源"进行重新组合,即"资产重组",从会计信息生产的源头上解决会计信息失真问题。
-
As the MSA Information System and the MSA Information System have put in operation, this paper is try to design and plan the electronic maritime endorsement system in Yangtze River Delta, emphasizing on the connection of the different information system.In principle, the Yangtze River Delta maritime endorsement system is a long project .It should be divided into several stages and set different objects for each stage .
鉴于交通部海事局全面启动和已部分实施&水监信息系统一期&工程和&水监信息系统二期&工程,本规划和设计选定长三角地区船舶电子签证系统规划和设计作为课题,着力研究在长三角地区率先实现不同海事机构签证信息系统的联网,从而使区域性海事一体化管理有了可能。
-
In order to overcome the above-mentioned gaps of the Client/Server computing model of the current GIS, this research introduces Agent technology originated from Artificial Intelligence to GIS. The thesis proposes a new kind of Agent - GeoAgent and expatiates upon its characteristics, behaviors and architecture of corresponding GeoAgent System. A GeoAgent prototype system has been implemented, based on IBM Agent Software Development Kit Aglets. And then, this research proposes GeoAgent-based Geospatial Information Services, followed by detailed theoretical analysis.
针对现有地理信息系统在分布式计算模式方面的不足,本文引入了人工智能领域中Agent的理念,提出了GeoAgent的概念;系统地阐述了GeoAgent的特点、行为、优势和结构,以及GeoAgent系统的体系结构;利用IBM的开发平台Aglets,设计并实现了相应的系统原型;在此基础上,本文提出了基于GeoAgent的空间信息服务的理念,并详细分析了这种空间信息服务的特点和优势。
-
This paper discusses the length of loading lines in freight yard, how to the count the sides of awnings and warehouses, how to configure platforms, awnings
论文还研究了货场物流信息系统规划的原则、目标,提出了货场信息系统内部设计和外部设计中应注意的问题,构建了货场物流信息系统的系统结构。
-
Also, the main this paper will be on information systems for use at the farm level and to some lesser extent systems used to support researchers addressing farm level problems (e.g., simulation or optimization models, geographic information systems, etc.) and those used to support agribusiness firms that supply goods and services to agricultural producers and the supply chain beyond the production phase
同样,本文主要的焦点将放在应用于农业水平的信息系统以及一些较少扩展的用于支持研究人员定位农业水平问题的系统上(如:模拟和优化模型,地理信息系统等),还放在用于支持那些为农业生产者和基于生产阶段的供应链提供商品和服务的农业综合企业公司的信息系统上。
-
In the second part, introduce the problems in developing our countrys UNIS, face to the problems, bring forward the countermeasure, in this part, the article also demonstrate the feasibility to build the UNIS.
第三部分:介绍了车载城市导航信息系统的开发设计方案,主要包括系统的需求分析、系统总体设计、系统设计原则、系统开发方式的选择、系统的开发环境、系统开发关键技术阐述、导航电子地图设计、导航信息系统功能设计等。
-
Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.
全文论述的内容主要有下列几个方面:(1)较为系统地阐述了CAD/CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程,在分析工艺设计过程的基础上,提出了基于特征原型的渐进式工艺设计方法,并探讨了该方法的应用前景;(2)研究了零件特征提取的原则和方法,在成组技术的基础上,开发了一套基于特征的分类编码系统,并在提取零件特征的基础上,定义了零件特征的数据模型,开发了基于轴类零件特征的参数化设计系统;(3)研究了基于特征的CAD/CAPP集成的方法,通过定义零件特征数据模型的存储结构,开发了将设计数据转换到工艺数据库中的接口程序,为后续的CAPP系统提供必要的零件形状和工艺信息;(4)研究了基于特征的工艺推理方法,将Mycin算法应用到工艺决策中,开发了基于特征的工艺推理及工艺方案生成系统,在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺;(5)介绍了整个HOPE系统的总体结构,通过运行HOPE系统绘出了一轴类零件的零件图,并生成了该零件的加工工艺方案,初步探讨了基于特征的工序图生成技术中数据处理问题;(6)研究了工艺设计过程中知识如何有效表示的问题,提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法,并利用BP算法进行了工艺知识表示的初步研究;(7)研究了工艺设计过程中同一安装下工步优化排序问题,利用神经网络中基于模拟退火的理论来解决该工步优化排序问题,实践证明该方法较传统的算法具有更高的效率;(8)总结了本文所进行的研究工作,为今后进一步开展工作提出了较为合理的建议。
-
VRGIS is a virtual reality technology, which can researches geosciences or takes geoscientific system as object, as well as is a rising research branch of GIS recently.
虚拟现实地理信息系统(Virtual Reality Geographic Information System,简称VRGIS)是虚拟现实与地理信息系统相结合的技术,是一种用于研究地球科学的,或以地球科学系统为对象的虚拟现实技术,也是近年来一个新兴的地理信息系统的研究分支。
-
2Aim to the instance of AJiuTian hydropower project, on the basis of thedeep analysis for system exploitation, surrounding three goal of hydropowerengineering, the management and control system of dynamic visual information forhydropower engineering is developed. The development of method of schedulemanagement and control system, investment management and control system, qualitymanagement and control system, engineering three-dimension dynamic visualsimulation, engineering geology three-dimension dynamic visual simulation areadvanced, management and control of dynamic visual information for hydropowerengineering faced construction scene is realized, which provide manager with fast,exact decision-making support.
2紧密结合云南苏帕河阿鸠田水电工程的具体情况,在分析系统开发思路及原则的基础上,围绕水电工程项目管理的三大目标,研制开发了阿鸠田水电工程可视化动态信息管理与控制系统,提出了工程进度管理与控制系统、工程投资管理与控制系统、工程合同管理系统、工程施工三维动态可视化仿真系统、工程地质三维可视化模拟系统等多个子系统的功能设计及实现方法,实现了直接面向施工现场的工程动态信息的可视化管理与控制,为管理人员提供迅速准确的决策支持。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力