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The study has focused on: 1 The research background and the current state of the power measurement were analyzed systematically, and then wavelet-based power measurement algorithm was certified feasible for astable signals; 2 We developed a new method of RMS and power measurement based on Dmeyer wavelet. After that three other wavelet measurement approaches were compared with Dmeyer wavelet-based measurement approach. Then the impact on measurement errors of amplitude frequency property and energy leakage of wavelet filter banks were deeply researched, and some measures were proposed to reduce it; 3 We developed a new strategy of power measurement algorithm based on lifting wavelet, which had calculation advantage compared with the first wavelet, so that it was more suitable for the realization of hardware; 4 The running system of wavelet-based power measurement algorithm based on DSP was proposed, and then it was realized on ICETEK-VC5416-A EVM board; 5 Existing problems and the further research direction of wavelet-based power sub-band measurement algorithm was discussed.
本文对基于小波变换的功率测量算法展开深入的分析研究,主要内容有:1)系统地分析了功率分解测量的研究背景、国内外的研究现状,并从能量守恒的角度验证了小波功率分频带测量算法在非平稳信号条件下的可行性;2)首次提出了Dmeyer小波变换有效值与功率的测量方法,进而通过对该方法与3种已经提出的小波测量方法的对比分析,深入研究了小波滤波器组的幅频特性和能量泄漏特性对测量误差的影响,并针对电网谐波的特点提出了减小影响的相关措施;3)首次提出了二代小波功率测量算法,对比一代小波功率分频带测量算法,它大大减少了算法实现的运算量及内存的需求量,从而更适合于硬件的实时实现;4)提出了小波功率分频带测量算法的DSP实现方案,并在ICETEK-VC5416-A EVM板上进行了实现;5)探讨了小波功率分频带测量算法目前仍存在的问题,并提出了进一步的研究方向。
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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。
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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。
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In this paper, searching technology of product information based on knowledge was researched. On the aspect of cognition, we researched the relation between user\'s cognition and designer\'s cognition, explored the knowledge flow in the process of product development, set up a matching model between user\'s knowledge and designer\'s knowledge, brought forward a modeling method based on users\' cognition, and set up a measurable model of product feature; coded and decoded product form element, set up a computer aided product form design system and image evaluating system based on the result of measurement. Accordingly, the product style and product image were systematically discussed, the recognition space of product style and image was constructed, the factors that affect product style and image were put forwards and analyzed, and the relation between product image and form elements was tested by experiments. Furthermore, the product automatic recognition technologies were discussed.And then, with the media of concept model and the kernel of parameter technology, a mathematic model that describing product layout design by constraints and rules was presented. Furthermore, a product design integration system based on imagery thinking including product fonii base system based on imagery thinking, product form design system based on imagery thinking and product form intelligent design system based on space layout were set up, which tested the system and provided a new way for product innovative design.
本文以产品特征描述目标对象——产品,研究一种基于知识的产品信息检索技术,在对产品的认知方面,研究了用户认知和设计师认知之间的关系,研究了产品开发过程中的知识流传递过程,建立了用户知识和设计知识之间的匹配模型,提出了一种基于用户知识的产品建模方法,它不但提取了产品的特征,还建立了产品特征量化模型,从而实现了产品知识的量化描述;对产品造型元素进行分解和编码,利用实验量化结果构造计算机辅助产品形状设计系统和心象评价系统;使用量表分析造型元素的心象尺度,构造输入、输出系统,建立了产品设计知识库咨询系统,可以方便用户和设计师来导入或查询产品设计方案;实现了对产品造型心象的分类知识库系统,便于设计师存储或查询,辅助设计师进行产品创新设计;通过实验量化了产品造型参数和产品心象参数之间的关系,并在此基础上建立了基于心象的产品形状设计系统,为产品空间布局方案智能生成系统奠定基础;在基于知识库的基础上建立了产品空间布局方案智能生成系统,通过更改概念产品造型参数,实现了产品设计方案的智能生成,使系列化的设计工作变得十分方便;将产品的心象运用到实际设计过程中,能够引导流行趋势,创造出产品无形的设计价值。
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In this thesis, how to study and apply of system of CRM based on Web are discussed. Firstly, we summarize the principle of CRM, beginning with the current research condition, and introduce the concept, features and management principle of CRM. Secondly, we illustrate the basic architecture of web-based CRM system to form the basis of the further research and propose the integration of CRM system to the front end of enterprise, namely, the study on the business process re-engineering of CRM system. Then we discuss the key technique knowledge on CRM system based on Web, which included the technology of system interface, system safety and the design of net framework. And explain the technology of web service is a good solution to the problem of system interface in the Internet and the advantage of the develop way based on the B/S pattern. According to an application of CRM system based on Web, this thesis explains how to set up a CRM system based on Web, which include the customer requirement, analyzing the business process, system framework and system safety. At last, this thesis puts forward the extensive foreground of the system of web-based CRM with the expanding of the web technology and explains that there are some questions are to be resolve stilly in this thesis.
本文的研究内容首先从客户关系管理的研究现状出发,对客户关系管理加以概述,阐述CRM系统概念、系统特点和核心管理思想;并阐明了基于Web的CRM系统的基本架构为进一步的研究作铺垫,提出CRM系统对企业前端的整合,即对CRM系统的业务流程重构的研究;接下来说明基于Web的CRM系统开发的关键技术,包括系统体系结构的选择,系统接口以及系统安全三方面的技术要求,具体说明了B/S模式的原理及优点,Web Service是解决基于B/S模式系统的接口问题的最好方案;然后以一个销售管理CRM系统为例,说明如何构建一个基于Web的CRM系统,包括了系统设计要求、系统实现、系统功能框架和系统安全机制;最后根据当前通信和网络技术的发展,展望基于Web的CRM系统应用的广泛前景,并对在本文研究中还存在需要改进的地方进行了探讨。
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And the direction query efficiency based on multi-approximate index is compared with that based on taditional external approximation index. 2 The algorithms of nearest neighbor and reverse nearest neighbor about point, line and ploygen based on multi-approximate index are proposed after the virous methods of distance measure are discussed in detail. And the query efficiency of NN and RNN based on multi-approximate index is compared with that based on taditional external approximation index. 3 The basic concept of semi-join and the strategy of distance-direction semi-join are introduced. And the model of distance relationship, direction relationship and the bounding for spatial object are discussed. Then the method is presented about how to implement the query of distance-direction semi-join, and the efficiency of the algorithm based on multi-approximate index is compared with that based on taditional external approximation index.
即:1在方向关系矩阵模型、开域方向模型基础上,讨论了基于多重近似索引下的定性与定量方向检索方法,并通过实验对基于多重近似索引与外部近似索引下的方向检索效率进行了对比分析;2详细讨论了各种距离度量方法,提出了基于多重近似索引下的点、线、面的最邻近查询和反最邻近查询算法,并通过实验对基于多重近似索引与外部近似索引下的最邻近查询和反最邻近查询效率进行比较分析;3介绍了半连接的基本概念,探讨了距离关系、方向关系以及空间对象数量的约束模型,给出了基于多重近似索引下的距离方向半连接实现方法,并通过实验对基于多重近似索引与外部近似索引下的距离方向半连接的效率进行了比较分析。
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To provide effective and efficient solutions to the scheduling problems in discrete job shop with multiple cells each having flexible process routings, this dissertation presents a Holon-based autonomic and coordinated intelligent scheduling technique, which is integrated with reinforcement-learning-based contract net protocol and modified filtered-beam-search algorithms, based on the recent researches in Agent or Holon-based decentrated production scheduling. The proposed intelligent scheduling technique is studied based on the key techniques of Agent or Holon-based autonomic and coordinated scheduling, i.e., encapsulation of entities, the control architectures, coordinated mechanism and core autonomic algorithms.
本论文在充分吸收近十余年间基于Agent或Holon的非集中式生产调度最新研究成果基础上,以具有生产加工柔性的、多单元、离散作业型制造车间为研究对象,围绕基于Holon的协商与自治调度关键技术(实体封装、控制体系结构、协商机制和核心算法)展开研究,提出了基于Holon概念模型的、集成强化学习机制的合同网协议和改进过滤定向搜索算法的自治与协商智能调度技术,以提供实用有效的求解方法、改善柔性制造车间适应内部动态环境和外部市场快速变化的能力。
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Probes into the strategies of integration teaching about DGS and geometry teaching Based on the practical analysis of integration teaching from the experiment, integration strategies on DGS and geometry teaching are advanced as follows: strategies of accuracy-based figure-to-data transformation; strategies of abundance-based generalization; strategies of dynamic-based test-driving; strategies of scene-based pre-generation; strategies of dynamic variability-based extending.
3DGS技术与初中几何教学整合的策略探究根据对微型整合教学实验的具体分析,本研究归纳和梳理了有关DGS技术与初中几何教学整合的主要策略:基于精确性的形数转化策略;基于丰富性的概括抽象策略;基于形象性的证明驱动策略;基于情景性的预设生成策略;基于动态性的拓展延伸策略。
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Laser-based metrology and grating-based metrology are two main ultra-precision tools of dimension measurement. However, very few research work has been done on grating-based nanometrology compared with laser-based nanometrology till now because many people, including some grating researchers and specialists, hold the idea that the accuracy of grating-based measurement is lower than the laser's and can only reach micrometre or sub-micrometre level. They consider that it is unfeasible to get nanometer-scale accuracy using grating-based sensors.
激光技术和光栅技术是毫米级以上量程的精密几何量测量的两种最主要手段,目前,用激光进行纳米测量的研究已经很多,但光栅纳米测量技术的研究却很少;很多人,包括很多光栅研究者和测量专家,都认为,光栅测量的精度不如激光,其精度还只是停留在微米量级上,用光栅来进行更高精度的测量以至纳米测量是难以实现的。
- 相关中文对照歌词
- BasedGod Fucked My Bitches
- CNBFTBGB Based Freestyle
- Money Over Suckas
- Everything Based
- Be Brave Welcome Home
- Wonton Soup
- Cashout On Me Based Freestyle
- Pretty Boy
- Bitch Mob Gangsta
- So Based
- 推荐网络例句
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But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.
但是,这是不可能的,只要是搞市场经济,是有风险的任何行动。
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We're on the same wavelength.
我们是同道中人。
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The temperature is usually between 300 and 675 degrees Celsius.
温度通常在摄氏300度到675度之间。