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基于 的英文翻译、例句

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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。

Due to its good effect in the reservation of information of signal abrupt change, mathematical morphology is often applied in the detection and location of short-term power quality disturbance, however, there is still a defect of invalid detection existing in partial detection methods based on mathematical morphology while some zero-crossing disturbances are detected. In this paper three mathematical morphology based disturbance detection and location methods, i.e., the method based on first-order derivation and morphological gradient, the method based on morphological gradient and soft threshold processing and the method based on dq decomposition and top-hat transform, are analyzed, that is, by means of simulation the adaptability of these methods in the analysis on the signals of voltage sag, voltage swell and electromagnetic transient oscillation is compared.

数学形态学因其在保留信号突变点信息方面有很好的效果,因此常用于短时电能质量扰动的检测和定位,但基于数学形态学的部分方法仍存在对某些过零点扰动检测失效的缺点,文章分析了3种基于数学形态学的扰动检测和定位方法,即基于1阶求导和形态梯度的方法、基于形态梯度和软阈值处理的方法、基于dq分解和高帽变换的方法,通过仿真比较了3种方法在分析电压暂降、电压暂升、电磁暂态振荡等信号方面的适应性,结果发现基于dq分解和高帽变换的方法在检测过零点扰动时具有很好的效果,因此选取这种方法对实测扰动数据进行了检测和定位分析。

A new knowledge acquirement way is presented based on the reliability data of product, then the fuzzy semantic net which consists of FEPM and fuzzy fault tree is regard as fault knowledge representation. The formalization of the fuzzy semantic net is described, and the relative concepts and relations are summarized. A stereo-knowledge representation which consisted of FFTF, rule and fuzzy neural network which make up of the shallow knowledge of the product is presented. The integrated fault diagnosis method based on the stereo-knowledge representation is suggested. The method is as follows. The fuzzy search inference is carried out on FFTF firstly. If the node being diagnosing can be decided if it failed or not in the fuzzy search inference, the rule inference to the node is carried out with the rules which being in symptom-fault way. An equivalent method, pattern recognization inference using fuzzy neural network, can fulfill the same work.

提出了以FFTF模糊语义网络为主、基于浅知识的产生式规则、模糊神经网络为辅的产品故障知识的立体知识表示方式,并提出了基于该多种知识表示的综合性故障诊断方法,即:首先对故障产品进行基于FFTF模糊语义网络的模糊搜索推理,如果在模糊搜索推理过程中不能确定当前诊断节点故障与否,则对当前诊断节点进行基于征兆-故障形式的验证式规则推理或者对包含该诊断节点的部件/子系统进行基于模糊神经网络的模式识别推理,如果在完成或者不再进行基于模糊语义网络的故障推理,仍然不能诊断出故障节点,则对基于模糊语义网络诊断过程中形成的故障诊断子图进行神经网络推理。

With reference to the experience of specific practice on strategic alliance in typical domestic and overseas port like New Jersey Port in New York, port of Kaohsiung, Keelung and Taizhong, major ports in Yangtze River Delta, the possible modes of Rizhao Port strategic alliance were proposed. Based on the previous analysis, specific design on the supply chain management system of Rizhao Port viewing from strategic alliance was given in this dissertation, which mainly covered two aspects. On the one hand, based on the overall review of common design process, structure design and selection of partnership of supply chain management, and with consideration of the development trend of Rizhao Port, the double-sector style supply chain structure mode of Rizhao Port was put forward based on strategic alliance. On the other hand, in order to make it more clear on the specific process and contents of this kind of supply chain structure, the specific implementation of five supply chain for Rizhao Port in which capital was taken as the hub were proposed, named as, the coal supply chain based on norm regular ship transport mode, the ironstone supply chain based on cost optimization, the crude oil transport supply chain with the aim of extending petrifaction industrial chain, the timber transport supply chain based on circulating economy concept, and the farming transport supply chain based on futures theory.

在前文分析的基础上,论文重点论述了基于战略战略联盟的日照港口供应链管理的总体框架构建和具体规划设计两方面:一方面,在对供应链管理一般构建流程、结构设计、供需均衡及合作伙伴选择等方面进行全面总结基础上,并结合日照港口的发展趋势,推出了基于纵向战略联盟的日照港口集团式双扇形供应链结构模型;另一方面,为进一步理清日照港口双扇形供应链结构中相关供应链的具体流程及内容,特提出了以资本为纽带日照港口五大供应链的具体设计,即基于准班轮运输模式的日照港煤炭供应链,基于成本最优化日照港口铁矿石供应链,以延伸石化产业链为目标的日照港原油运输供应链,基于循环经济理念的日照港木材运输供应链,基于期货理论的农业定单式日照港农业运输供应链。

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。

And ourresearch focuses on the following aspects: position based beaconless routingalgorithm, performance comparison of position based and topology based routing,position based and topology based hybrid routing algorithm and routing maintenancealgorithm of DSR by using position information.

本文针对移动ad hoc网络中的路由技术,对移动ad hoc网络中的基于拓扑和基于位置的两大类路由算法和协议进行了总结和分析,集中研究了以下几个方面的内容:基于位置的无信标的路由算法,基于拓扑和基于位置路由算法的性能比较,基于拓扑和位置信息的混合路由算法,以及利用位置信息对动态源路由的路由维护进行改进的算法。

The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.

根据交通流量数据分布的特征,提出基于k-means的二次聚类方法,对交通流量在流量大小和时间上进行模式划分,进而对各个交通流模式进行基于BP神经网络的描述和预测,从而提高模型对流量预测的精度; 2)根据流量/时间占有率倒&V&字形曲线分布模型,提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法,实际应用表明该方法能够有效识别异常数据,然后根据移动平均算法对异常数据进行修正; 3)基于序列相关性分析,分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析,选择相似性流量序列,作为辅助序列提供其他没有检测器路口的流量估计; 4)设计和实现了基于SOA(Service-Oriented Achitecture)的高性能、可扩展的智能交通数据挖掘系统UTDD,该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口,实现数据挖掘应用的统一管理和调用,最后在UTDD上建立了基于路口流量预测的应用模型。

With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.

本论文本着科技创新、服务于生产实践的精神,以设计价格低廉,性能优越、结构合理简单的L-band EDFA为目标,依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目,展开了如下工作:首先,介绍了掺铒光纤放大器的工作原理,归纳总结了基于速率方程基础的EDFA的各种理论模型,分析比较了各个模型的特点和适用场合,最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础;针对实际实验条件提出了修正的EDFA模型的数值计算方法;创新地提出了增益—噪声系数全局分析法,直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系,并对各种EDFA的性能作了全面的比较;第二,介绍了掺铒光纤放大器特性参数的定义与测量方法,重点介绍了噪声系数和增益系数的测量方法及实验装置;介绍了组成掺铒光纤放大器各组件的特性测量方法,重点介绍了测量掺铒光纤参数的方法和实验装置;第三,针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求,我们创新地提出了四种不同的L-band EDFA结构,按设计思路可以分为两大类:一类是基于单抽运二级泵浦法,这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构;基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构;基于单根光纤光栅、泵浦分配、两段级联的EDFA;另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法,如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。

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。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上,应用多种信号处理手段来分析处理数据,同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨,本文进行了以下几项工作:(1)提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略;(2)提出了基于WVD分布的连续撞击响应信号的分离策略;(3)提出了基于对数谱拟合方法的钢—钢撞击响应求解模型;(4)提出了基于波形分析的非正常燃烧振动信号的诊断模型;(5)提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型;(6)提出了基于小波近似的喷油正时信号中燃烧位置的自动定位;(7)提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略;(8)提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

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