查询词典 dynamic data exchange

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。

So called "likely is" is for under the seriously restricted condition of simple labor and commodity exchange in the early days, both sides know about the approximate labor amount needed for producing the article for exchanging, so it is relatively easy to realize the equate labor exchange; So called "likely not" is for in the process of developed and complicated commodity exchange, it is very difficult for the dealers to compute the labor amount that includes in the article of other side, so the principle of equate labor exchange actually does not inheres the meaning that prevalently use, the comparing interests principle can be the principle that prevalently use, but the equate labor exchange principle just is a kind of special example of comparing interests principle.

所谓&似是&是因为在初期简单劳动及其商品交换的严格限制条件下，双方都知道要生产所交换的商品需要的大致劳动量，等量劳动交换的实现比较容易；所谓&而非&，则是因为在发达复杂的商品交换中，交换者很难统一计量出对方商品所包含的劳动量，等量劳动交换原则事实上就不具有普遍适用的意义。商品交换的比较利益原则才是普遍适用的原则，等量劳动交换原则只是比较利益原则的一种特例。

As to domestic sector, the author discuss the influences of different exchange rate regime on growth, inflation, economic stability and financial deepening, and agues that:(1) the relatively fixed exhange rate regimes are more pro-growth for emerging economies;(2) the relatively fixed exchange rate regimes can be useful for control of inflation in developing countries, but it can also be replaced by other monetary rules like inflaiton-targeting;(3) fixed exchange rate regime woulde better to deal with nominal shocks when floating exchange rate regime better to deal with real shocks, but both of them can not entirely insulate the external shocks;(4) the improvement of financial deepening is faster under relative fixed exchange rate regimes.

从国内经济部门看，不同汇率制度对经济增长、通货膨胀、经济稳定、金融深化等关键变量具有不同影响：（1）对于新兴市场国家来说，相对固定的汇率制度更有利于促进经济增长；（2）相对固定的汇率制度有利于抑制通货膨胀，但也可以由其他货币规则替代；（3）固定汇率更适合应对名义经济冲击，浮动汇率更适合应对实际经济冲击，二者都不能隔离外部冲击；（4）在相对固定的汇率制度下，金融深化发展更快。

This paper includes several parts: first, some important concepts of the thesis have been defined, a theoretical overview of currency crisis has been finished; then, we have described the history of the international monetary system; later, three chapes have been arranged to discuss the mechanism of currency crisis under fixed and floating and intermediate exchange rate system respectively. The part of the fixed exchange rate system mainly includes the analysis of the collapse of the international gold standard system, the Bretton Woods system and the the European Monetary System; in the part of the floating exchange rate system, the volatility problem under freely floating exchange rate system has been studied; the part of the intermediate exchange rate system mainly includes the analysis of currency crises in regional dollar standard system and the currency board system. And finally, we have analysed the inevitability of the appearance of new type regional monetary cooperation patterns, and how these cooperations avoid currency crises.

本文主要包括这样几部分：首先，对论文中涉及到的重要概念给予界定，并对货币危机理论进行系统梳理；接着，按时间顺序从总体上回忆国际货币制度的历史演进；然后，用三个章节分别研究了固定汇率制度、浮动汇率制度以及中间汇率制度下货币危机的形成机理，其中，固定汇率制度下的货币危机主要包括国际金本位制度和布雷顿森林体系的崩溃，以及欧洲货币体系的瓦解；浮动汇率制度下的货币危机，则重点分析了自由浮动汇率制度下汇率的过度波动问题；中间汇率制度下的货币危机，分别分析了区域美元本位及货币局制度下货币危机的发生机理；最后，分析了目前新型区域货币合作模式出现的必然性，及各模式下如何规避货币危机。

Considered that china finance reality, implementing hard peg exchange rate regime isn" t favor to economic level effect, but at present there isn" t enough condition in implementing float exchange rate regime in china, so author argue that china should choose median exchange rate regime between hard peg exchange rate regime and float exchange rate regime.

论文重点分析了在中国金融进一步开放中，实施固定汇率制不利于发挥汇率的经济杠杆作用，而实施浮动汇率制的条件又不具备，只能选择介于固定与浮动两极之间的&中间汇率安排&。

The sixth part: Studies on the dynamic changes of soil retention function value of ecosystem in YUYANG District. Utilized ERDAS8. 5 to interpret the remote sensing image and get LUCC data and vegetation information of YUYANG District. Utilized R2V5. 5 to digitize administrative map, topographic map, vegetation picture, soil distribution map and meteorological website map. Utilized ARCINFOR8. 3 to change every digitization layer to the same projection, to generate Tyson polygon, to structure DEM and do vector polygon overlay. Utilized ARC VIE W3. 3 to obtain the grid data topographic slope and slope length from DEM data of YUYANG District, and then, turned every coverage layer into grid layer and do grid polygon overlay to gain data about dynamic changes of value of soil retention of ecosystem in YUYANG District, at last, the author analyzed the features of the spatial-temporal changes and its reason.The seventh part: Studies on the dynamic changes of fixing drifting sand against wind function value of ecosystem in YUYANG District.

第六部分：榆阳区生态系统土壤保持功能价值动态变化研究；利用ERDAS8.5对遥感数据进行解译获得榆阳区土地利用数据和植被信息，利用R2V5.5数字化榆阳区政区图、地形图、植被图、土壤分布图及气象站点分布图，利用ARCINFOR8.3对各数字化图层进行投影转换、泰森多边形生成、DEM构建和叠加分析，利用ARCVIEW3.3从DEM数据中获取榆阳区的坡度、坡长面域数据，并将上述各图层格网化，然后通过栅格图层叠加分析和代数运算获取榆阳区生态系统土壤保持功能物质量和价值量时空动态变化数据，最后分析了其变化的时空特点及形成原因。

Coding;Communication;Communication systems;Communication technology;Components;Data;Data description;Data processing;Data processing system;Data records;Data representation;Data transfer;Definition;Definitions;Earth's surface;Encoding;Geodesy;Geographic information;Geographical;Geography;Geology;Geomatics;Geotechnics;Information;Information exchange;Information processing;Information technology;Schemes;Topology

中文标题地质信息。数据描述。传输中文主题词信息技术；信息；数据处理；地质的；信息交流；地球表面；地质信息管理；地质信息；定义；图表；数据处理系统；大地构造学；地质学；拓扑学；数据传送；信息处理；数据记录；通信系统；元部件；地理学；数据表示；传播技术；传播学；数据；编码；编码；数据描述；大地测量学

Chapter four uses Autoregressive Distributed Lagapproach to examine the extent to which changes in exchange rates result in changes in CPI , which is the proxy of Chinese domestic inflation. It also analyzes the impact of food price on exchange rate pass-through effect. Then, chapter four uses Vector Autoregression model to examine the short term and dynamic effect of exchange rate pass-through. The above empirical results reveal that the exchange rate pass-through effect to domestic prices is incomplete and time-lagged.

然后，本文运用自回归分布滞后模型研究人民币汇率变动对以消费者价格指数衡量的国内通货膨胀的传递效应，并结合中国实际考察了食品价格冲击对汇率传递效应的影响；本文通过将名义有效汇率和价格等宏观经济因素纳入同一个VAR系统中，利用脉冲响应函数与方差分解技术来考察名义有效汇率变动冲击对国内价格水平的短期动态影响。

Through on-site observation, interviews, analysis of their parents and teachers to exchange dynamic behaviour drawed: The purpose of parents' meeting with children is too simple and lack of opportunity for the exchange of awareness; Most of them are so impatient that miss the opportunities of communicating with teachers. Facing more than 30 parents at the same time, teacher can alleviate pressure on exchange through cooperation with other teachers. In exchange status, teachers played a dominant role to give professional guidances, major parents will listen to the views of teachers, less be active to express their own views. Whether parents or teachers, the use of communication strategies can effectively enhance communication effectiveness.

通过现场观察、访谈，分析接送交流中家长和教师的动态行为得出：家长接孩子目的单一，较心切，缺乏等待交流时机的意识；教师需要合作分工缓解交流压力；在交流地位上，教师发挥专业指导作用处于主导地位，家长以听取教师意见为主，有陈述己见趋势；但无论是家长还是教师，交流策略的使用能有效地加强交流的有效性。

With the guidance of object-oriented idea and the theory of flexible software, report is described as a three-layer model that consists of the origin-data layer, the data-processing layer and the format layer. The format of report is separated from its data, which makes the data variable, the format fictile and the processing of data modularized. The problem of fixed report template and data is solved. Users can adjust reports format and content easily at any moment. The data of report are dynamic and can be refreshed when needed.

它以面向对象的思想和柔性软件系统理论为指导将报表描述为包含原始数据层、数据处理层和格式层的三层结构模型，将报表数据与格式分离，使报表数据变量化、报表格式可塑化、数据处理模板化，从而解决了报表模板和数据固化的问题，使用户可以随时根据情况需要简捷方便的调整报表的格式和内容，并可以实现报表数据的动态赋值和自动刷新。

"Bird Man's Diary, Butting on the Love Island", Changsha, China

2008年"鸟人日记，顶在爱情岛"，中国长沙

As long as they were in the service of a family of wizards, their magic would remain dormant.

只要他们一天为家庭服务，他们的法力就潜藏不动。