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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。

Based on the foundation of the virtual prototype model of the medium-speed maglev train, using the mechanical dynamics and kinematics analysis software ADAMS, this paper expatiates on the following things. Firstly, it analyses the decouple of single magnetic bogie by the simulation and experimentation; secondly, adds the magnetic levitation control system to the single magnetic bogie model and simulates; thirdly, by simulating the motion of the train running on the different type of guideway, analyses the state of the train on the ramp and crankle;in the end ,this paper does a further research on how the magnetic levitation control system and guideway parameters affect the suspending gap when the train runs on the ramp and crankle .

论文在建立了中低速磁浮列车虚拟样机模型的基础上,借助于机械系统运动学及动力学分析软件ADAMS,首先从单转向架出发,仿真分析了磁浮列车单转向架的解耦能力;接着对单转向架样机模型进行了控制系统的仿真;然后对一辆整车在竖曲线和平曲线的运行在ADAMS中进行了仿真,分析了列车在坡道和弯道上的运行状态;最后对磁浮列车在坡道和弯道上运行时的系统性能进行仿真分析,进一步研究了控制系统和线路参数对磁浮列车悬浮性能的影响。

In terms of memory hierarchy, we investigated how to improve the cache hit rate and localize data according to the characteristics of cache, master memory, local disk and remote disk in cluster systems. As for communication, features of cluster systems and different cluster internal networks are examined. Two popular parallel programming models - message passing model and share memory model - are analyzed in terms of how do they affect the cluster performance and how can we improve the cluster performance.

在处理器层面,分析了现代处理器中常用的一些技术,包括超线程技术、超长指令技术和NUMA架构等,对不同特点的程序的性能影响和如何充分利用处理器中的一些技术提升性能;在存储层次上,结合机群系统上Cache、主存、本地辅存及网络存储的存储层次的特点,分析了数据局部性、Cache命中率等对性能的影响以及提出如何提高数据局部性;通讯系统层面分析了不同机群通讯系统及不同机群通讯网络的特点;在编程模式方面,分析和比较了目前最常用两种并行编程模式--消息传递编程模式和共享存储编程模式,在机群系统上对性能的影响因子以及提出如何提高性能的方法。

On the basis of dual feature identification method, combined with small wave analysis, it effectively extracts failure features, analyzes the stability power failure vibration signal feature on the general Fourier atlas, analyzes the shock power failure vibration signal feature on the resonance modulating Fourier atlas, using small wave to analyze the shock failure vibration signal feature.

是一种在"双特征判别法"的基础上,结合小波分析,有效提取故障特征,进行诊断的"三特征判别法",所述的故障信号"三特征判别法"就是:在常规傅立叶谱图上分析平稳功率故障振动信号特征,在共振解调傅立叶谱图上分析冲击功率故障振动信号特征,利用小波分析冲击故障振动信号特征。

The work reads as follows: setting up the concept of network users" behavior and categorised system, then discussing the classification of users based on network users" behavior; analyzing the information source of network behavior analytical system, considering mostly two respects of efficiency and accuracy of behavior information; probing into the demand,step and system frame for establishing network user"s behavior analytical system, and discussing some key technology in course of the system implementation; Then putting forward several kinds of common application modes or thought of network users" behavior analysis, including network click flow analysis , computer and network security analysis and user structure analysis of Intranet. The key algorithm of behavior analysis system has been discussed and improved .

本论文在此领域主要工作成果如下:建立了网络用户行为的概念与分类体系,并在此基础上进行了用户分类;分析了网络行为分析系统的信息源,其中主要考虑了信息获取的高效性和准确性两个方面;探讨了建立网络用户行为分析系统的需求、步骤和体系框架,以及设计和实现系统过程中所面临的一些关键技术;接着在上述基础上提出几种常用的网络用户行为分析系统模型或其思想,主要列举了网络用户行为分析在Web点击流分析、计算机与网络安全方面以及Intranet网内用户结构分析中的应用。

Therefore, it can be regarded as a great improvement of the investment decision-making theory and methods .This article makes a systematic research on real options theory and method and its application, including the following several main aspects:Firstly, it makes a detailed discussion about the common theoretical basis of financial options and real options, including no-arbitrage equilibrium principle, risk-neutral definition, complete market and dynamic tracking.Secondly, it analyze three basic characteristic of investment decision-making in modern market economic system: irreversibility, uncertainty and flexibility, and from the angle of their mutual quantitative and qualitative interactions, it makes a comparison between the traditional NPV methods and real options methods and makes a summary of the general analytical methods of real options.Thirdly, it discusses the all elements in the application of real options such as the ^leakages in value of real assets, basis risk, and private risk, and furthermore, it attempts to put forth a normalized strategy of its application and construct a basic framework of its application.Fourthly, it applies real options theory to strategetic investment of enterprises and the buy-out of company, putting forth a value model for strategetic investment program and making a concrete analysis of its application to buy-out. Furthermore, it advocates that a flexible investment decision-making system should be setup according to real options theory in our country.

本文对实物期权理论和方法及其应用进行了系统研究,主要内容包括如下几个方面:(1)详细讨论了金融期权和实物期权共同的理论基础,主要包括无套利均衡原理、风险中性定义、完全市场以及动态复制方法,对这些理论方法的探讨既是本文的出发点和基础,它们提供了研究实际应用实物期权的一个基准点,也是贯穿全文的线索和灵魂;(2)分析了现代市场经济体系中投资决策的三个基本特征即不可逆性、不确定性和时机选择,并从它们数量上和质量上相互作用的重要意义的角度,分析了传统的净现值法与实物期权方法的差异,指出了净现值法在不确定环境中存在的缺陷及实物期权处理投资灵活性的价值,并将净现值法纳入实物期权投资分析决策体系当中,总结了企业投资决策实物期权的一般分析方法;(3)探讨了实物期权应用中要考虑的各种要素,如实物资产的价值漏损、基差风险和非市场风险等,并进一步提出了实物期权应用的规范化策略和构建了一个实际应用实物期权方法的基本框架,尝试将期权的基本原理与企业在现实经济环境中投资决策的要素结合起来,从而可以在一定程度上超越期权的复杂的数学计算而汲取期权思想的精华,从而促进期权决策方法在实际投资决策中的应用;(4)将实物期权方法应用于企业战略投资,得出了战略投资项目的价值模型,指出可以将实物期权理论和方法应用于企业并购,分析了应用的具体方面,并提出应根据实物期权理论建立一套适合我国企业的灵活的投资决策系统。

The synthetic study that makes theory into practice is little. And the dissertation of the strategy that base on the core capability is little too. By studying the characteristic of dynamic situation and core capability, the text formulizes the relationship between core capability and the strategy of the enterprises. By means of SWOT, the text takes the important position of time and core capability into account and tries to analyze core capability-based strategy. The text emphasizes the balance between the foundation of core capability and the exertion of core capability in order to acquire the dominance of competitive advantage. By means of PDCA, on the base of the dynamic characteristic of core capability and the strategy, the text integrates the core capability and the strategy together. On the base of the core capability, the text analyzes the strategy of low cost, difference, merger and diversification, and gets the goal and measurement of these kinds of strategy. Through the study of these issues, the text integrates the core capability and strategy, and.

文章从核心能力的特征入手,分析企业所面临的动态环境以及由此而产生的核心能力的动态性的特点,并阐述了核心能力动态性与企业战略之间的关系;本文运用SWOT方法,首次通过对时间因素与核心能、力的重要地位的融合,在基于核心能力的企业战略的分析方法方面进行了尝试性的论述;本文强调对企业的核心能力的构建与其运用进行合理的平衡,以保证企业资源的合理分配及更好的获得企业竞争优势:运用PDCA分析方法,在综合了核心能力与基于核心能力的战略的基础上,将两者综合起来进行动态的分析,力图实现核心能力与战略的更好的结合;另外,本文对传统的低成本与差异化战略进行基于核心能力基础上的分析,大胆提出了通过对核心能力及其要素分解的判断,进行低成本、差异化战略进行选取的方法,并将此方法与传统的低成本、差异化战略的决策模式进行优势比较;也通过与核心能力的结合,对企业购并和多元化战略进行新的角度的分析,得出了基于核心能力的企业购并与多元化战略的分析、制定方法以及实施的注意事项。

Of 12 tomato lines, the analysis on the 4 fruit nourishment quality traits (the contents of vitamin C, total soluble solids and dry matter and ratio of sugar-acid ) was carried out to study the four kinds of disparities, which included the interspecific one, the one between two varieties in the same species , the one between the lines bred by different means in the same variety ,and the one between the different fruit-shaped lines in the same variety .The analytic method of orthogonal comparison of single degree of freedom was applied. The results showed that the line of Lycopersicum pimpinellifolium was better than the average of the lines of L.esculentum in the 4 traits at significant level of 1%, the average of the lines of var.cerasiforme was better than the average of the lines of var.vulgare in the 4 traits at significant level of 5% or 1%,and the two space mutation line(YH02-2 or YH02-6) was better than the average of the other lines of the same variation in the 4 trait, respectively, at significant level of 1%. Of the lines of var.cerasiforme , the lines with pear fruit were lower than the average of the lines with round-shaped or plum-shaped fruits in the 2traits(the contents of vitamin C and total soluble solids), at significant level of 1%,the lines with plum-shaped fruits were higher than the average of the lines with round-shaped fruits, at significant level of 1%,and the lines with yellow-colored fruits(YH02-11) was lower than the average of the lines with red-colored fruits(YH02-1and YH02-7) in the trait of the contents of vitamin C.

对12个品系进行种间、种内变种间、变种内不同选育方式间、变种内不同果实形状间在果实营养品质(果实维生素C含量、可溶性固形物含量、干物质含量和糖酸比)上的差异进行分析,采用统计学上单一自由度正交比较分析法与植物学分类相结合的方法进行分析,结果表明:醋栗番茄种品系YH02-12在4个营养品质性状上,极显著高于普通番茄种品系;樱桃番茄变种品系在4个营养品质性状上的平均水平极显著或显著高于普通番茄变种品系的平均水平;2个空间诱变品系YH02-2、YH02-6在4个营养品质性状上均极显著高于同变种的其他品系的平均水平;樱桃番茄变种品系中,梨形果品系YH02-5、YH02-8的果实维生素C、可溶性固形物含量均极显著地低于樱桃番茄变种中圆形或李形品系的平均水平,李形果品系YH02-9在4个营养品质性状上均极显著地高于圆形果品系的平均水平,黄色圆形果品系YH02-11的果实维生素C偏低于红色圆形果品系YH02-1和YH02-7。

It introduces China pharmaceutical industry's characters and problems and then analyzes influence factors from the macroscopically, interspaced and microscopically views. Chapter four is the empirical research part in this paper. It introduces the principal of appraisal index and the choosing of the indexes. Then it introduces the building of model and its disposal method in Spss. To get a clear view of principal components analysis the paper analyzes the differentiate and connection between PCA and factor analysis. In this basement, the paper introduces the disposal process and results of the model. The paper then improves the model with entropy right method to eliminate the portrait diversity of data. To validate the model's stability, the paper makes a significance test of the four results.

第四章是本文的实证研究部分,首先介绍了评价指标选取的原则和指标的确定;然后介绍了模型的构建及其在spss中的处理原理,由于主成分分析法不能在spss中直接实现,且其原理和操作都易与因子分析相混淆,所以本节首先分析了主成分分析法和因子分析法的区别和联系,在此基础上描述了怎样在spss的因子分析的基础上利用主成分分析法进行投资价值评价模型的数据处理;然后介绍了模型的数据处理过程和输出结果,随后利用熵权法对模型做了进一步改进,消除了数据间的纵向差异性,并对改进前后的输出结果进行显著性检验,以验证模型的稳定性。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下:通过大量的计算、分析和对比,总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同,为深入了解异形截面柱的特点提供必要的基本概念和数据;通过大量的弹性及弹塑性计算分析,在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下,在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律,并在此基础上总结归纳出异形柱结构的最大适用高度规定,可用于规程,以便于在确定方案时起到宏观控制的作用;对肢长与肢厚比在4~5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨,提出初步的设计方法;通过对典型工程的弹塑性动力时程分析,检验异形柱结构的薄弱层及屈服、破坏、倒塌机制,以达到建筑物大震不倒的抗震设防要求;通过理论分析,推导出异形柱结构自振周期,以及适宜自振周期、适宜刚度的工程实用简化计算公式,为经济、安全、合理地确定结构方案提供简便实用的方法;在本文理论分析、计算以及大量的研究成果基础上,总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容,并在此基础上提出异形柱结构的抗震设计建议。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。