基础
- 与 基础 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Intemet-based distance education has three base items f hardware,software and resource.
网络教育有三项基础:硬件基础、软件基础和资源基础。
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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component. For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper. For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space state informatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision. Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.
本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。
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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component.For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material .distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper.For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space stateinformatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision.Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.
本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。
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This paper studies the application of the activity-based cost-volume-profit analysis in the single projects of the construction enterprises.
并就传统的本量利法和以作业为基础的本量利法进行比较,找出传统本量利法的局限性,引出了新的以作业为基础的本量利法,并在作业成本法的基础上创立以作业为基础本量利法在单项工程中应用的三种模型。
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We can see that community correction can recollocate the limited judicial resource which is in favor of saving the cost of execution from a series of data, on the other hand, it is propitious to rebuild the light criminals. See from the penal base, the goal of the criminalistics in the 20th transfered to the criminal from the crime, the idea of correction was advanced on the base of going deep into the personality causation, because of which parole, probation and other community correction appeared and developed. See from the policy base, the popular international penal policy "polarization policy" also take a moment to community correction. It must divert some burden to the community if the country want to focus the strength into beating these terrorist, the fearful criminals. See from the environmental base, the developed country apply the community correction above 50%, which offers abundant experience and upstanding international surroundings to us, it also provide a largo flat roof for intercourse.
从一系列的数据可以看出,社区矫正既有利于行刑成本的节约,促进有限的司法资源的优化配置,也有利于对轻刑犯的改造,是符合行刑经济化的原则的;从刑事基础而言,近代刑事学派关注的目标发生了从犯罪行为到犯罪人的转变,在深入探究了犯罪的深层个性原因之后,提出了矫正刑的思想,并促进了假释、缓刑、保安处分等一系列现代刑法制度的出现与发展,这些都为社区制度的发展奠定了坚实的基础;从政策基础而言,目前国际比较流行的两极化刑事政策也为社区矫正的发展提供了契机,要集中有限的司法力量去打击那些恐怖犯罪、严重侵犯公民人身权利等犯罪,就必须将对轻刑犯的改造等部分负担转移到社区方面来;从环境基础而言,西方法治发达国家适用社区矫正的比例基本达到了50%以上,这为我国实行社区矫正提供了良好的国际环境和丰富的经验,并为我国和西方的法治对话提供了更宽广的对话平台。
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This thesis studied the key element's characteristic of logistics infrastructure system, made out the topology denotative method of logistics infrastructure, analyzed the relationship between logistics infrastructure and social economy.
本文首先对物流基础设施体系及其基本构成要素的基本特点进行了阐述,说明了物流基础设施体系的拓扑表示方法、物流基础设施与社会经济之间的关系等,引出了研究基础设施布局的基本思路。
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The background assumed on the part of the reader is a knowledge of undergraduate differential and integral calculus and of elements of differential equations, and the experience of a probability and statistics course based upon a calculus foundation.
具备微积分,微分方程基础和以微积分为基础的概率论基础知识的学生均可选学这门课程,如果进一步具有诸如变换,差分方程和马尔科夫过程这些更高一点的数学基础,对学习此课程会更有帮助。
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The study use for reference from domestic and international relevant city continual development theories, the city competition ability and the project performance evaluate theories, construct a elementary and integrity set of evaluation system of investment effect on Peking city infrastructure facilities.
在借鉴国内外有关城市可持续发展、城市竞争力和项目绩效评价指标体系和项目绩效评价的理论方法的基础上,进行了城市基础设施投资效果评价指标体系的研究和指标选择、设计,并初步建立起了一套完整的基础设施建设投资效果评价指标体系。课题针对北京市基础设施建设投资效果的评价方法与指标体系进行研究。
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Based philosophically on the role theory of sociology, especially the Symbolic Interaction Theory, namely Role Play by Miller, Impression Management and Drama-imitating Theory by Erving Goffman, as well as the author's long-time teaching expriences and observation through the method of cross-disciplinary research on the previous foreign and domestic research results, the thesis demonstrates and analyzes pedagogically, psychologically and administratively the main roles of teachers' in teaching and the regulation of their behaviors
从哲学的角度来说,它是以社会学角色理论为基础的,尤其是以象征性相互作用理论为基础,即以米勒角色扮演理论,印象管理法和Erving Goffman戏剧模拟式理论以及作者长期以来的教学经验为基础,同样还有以作者通过对以前国内外的研究成果所做的交叉学科性研究而获得的研究评论为基础,该论文从教育法上,心理学上以及管理学上对教师在教学和行为规范上的主要作用作出了明确的阐述和分析
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Chapter 3 deals with the main parties in the operations of standbys and the legalrelationships thereof accordingly,and then tries to analyze the mutual influences between theunderlying transaction and the letter of credit.
文章试对信用证与基础合同之间的相互关系也作了探讨,一方面,信用证支持和保障基础交易的开展但又独立于基础交易而发挥作用;另一方面,基础合同对于信用证交易也有着经常的深刻影响,信用证交易不可能完全脱离基础合同的制约。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。