By reviewing experimental results and tem images made by other researchers , a micro - mechanical model of nano - / micro composite toughening was built by several defined steps including building unit cell , confirming basic hypothesis , boundary conditions , and terminating conditions 根据前人的实验结果与显微组织资料，确定了细观力学研究所需代表单元体的提取方法、作出了基本前提假设、确定了求解边界条件与计算终止条件，从而建立复合增韧细观力学研究模型。
Then from the technological level major technological problems which should be solved in the course of constructing virtual huanghe were analyzed : 1 ) the applications on the virtual reality both in the country and aboard was analyzed and virtual huanghe river model was put forward in this paper 然后,从技术层面上,分析了在虚拟黄河实际建设过程中,需要解决的主要技术问题: 1 )对国内外虚拟现实与虚拟地理环境的应用现状进行了分析,提出了虚拟黄河建设的应用研究模型。
And then a model of researching agility measure is proposed based on the model of agility concept proposed by sharifi and zhang . based on the model , a system of agility measuring was given . in the system , use the method of marketing research connected with statistical analysis to research agility of manufacturing organization , and data collected from applications are used to validate the method 通过对敏捷制造和敏捷性的概念进行概括后，比较详细的比较、分析了四种典型的敏捷性度量体系，以sharifi和zhang所提出的敏捷性概念模型为基础，提出了一个简洁的敏捷性度量的研究模型，用市场研究的方法结合社会统计分析方法中的主成分分析和聚类分析来研究制造企业的敏捷性，将敏捷性科学地进行量化，得出一种敏捷性度量体系。
And also it needs to guide and excavate the individuality demands of the consumers . therefore , the experiential marketing arises . under this background , the consumer behavior researchers begain to discuss and measure the purchasing experience from the point of emotional experience , service experience , shopping experience , experience value and shopping values 本文首先就营销内涵的演进、体验经济及体验营销、消费体验的相关理论进行了探讨,根据相关文献推导体验营销下的消费体验过程作为建立消费体验过程管理模型的基础,并据以提出本研究的概念性和应用性研究模型。
The road system , which provides only for the bus operation is researched in this article . the methods of how to condemnation constructing the bus - operating road system or not is excogitated . on the basis of summarization the history methods of common public transportation network planning , put forward of the propping route design methods 对公交专用道进行了研究，研究了公交专用道路系统建设的现实可能，分析了设置公交专用道的条件和效益，提出了确定是否设置公交专用道的研究模型；对常规公交线网规划进行了总结和归纳，提出了基于现有公交线网的探索式线网生成方法。
Because of its importance , many works has been done to prove the relationship between stock market and economic growth . as a result of lying particular stress on quality analyze , ignoring the fact of our country , no compelling conclusion are reached 鉴于此研究课题的极端重要性，国内学者对股票市场与经济增长之间的关系、股市投融资的效率检验等投入了大量的工作，但由于以往的研究偏重于定性描述、或直接套用发达国家的研究模型，忽视了我国的现状，没有形成具有说服力的结论。
Then , based on the summarization and evaluation of the fruits and shortage other scholars made , this paper brings forward the research hypotheses . on the base of fully understanding of various research models of value relevance , this paper chooses the feltham - ohlson model and the balance sheet model as the basic mod els and adjusts the two models to test the value relevance of accounting data of listed a share corporations in china . the research result shows : ( 1 ) in the period from 1996 to 2001 the value relevance of accounting information in china is falling with the implementation and changing of every financial accounting standard ; ( 2 ) when testing listed corporations suffering loss the feltham - ohlson model is invalid ; ( 3 ) compared with 2000 , the accounting data of 2001 is n ' t more conservative but more aggressive ; and ( 4 ) this paper ca n ' t judge whether the book value of corporation assets after computing the asset reduction required by " accounting regulation of corporations " is closer to that before computing , and it needs further researching 在对各种价值相关研究模型充分理解的基础上，本文有针对性地选择feltham - ohlson模型和资产负债表模型作为研究的基本模型，并根据所研究的具体问题对模型进行了修正，用以检验我国a股上市公司会计数据的价值相关性，研究结论如下： 1 、 1996 2001年我国会计信息的价值相关性没有随各项具体会计准则的颁布和变更逐年提高，反而逐年降低； 2 、 feltham - ohlson模型在检验亏损上市公司时失效，这可能是我国资本市场中特有因素造成的； 3 、与2000年相比， 2001年会计数据不但没有更谨慎，反而更“激进” ； 4 、本文检验结果无法判断计提《企业会计制度》新要求的四项资产减值准备后计算出的企业资产帐面价值是否比未计提资产减值准备计算出的资产帐面价值更接近企业真实的经济价值，有待今后做进一步的研究。
A novel strip - coil - baffle structure used to enhance heat transfer and support the tube bundle for a tube - shell heat exchanger is proposed . the new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger . the numerical simulation on the flow and heat transfer characteristics for this new structure heat exchanger is conducted . the computational domain consists of two strip - coil sleeved tubes and two bare tubes oppositely placed at each corner of a square . the velocity and temperature fields in such strip - coil - baffled channel are simulated using fluent software . the effects of the strip - coil - baffles on heat transfer enhancement and flow resistance in relation to the reynolds number are analyzed . the results show that this new structure bundle can enhance the heat transfer coefficient up to a range of 40 ? to 55 ? in comparison with a bare tube bundle ; meanwhile , higher flow resistance is also accompanied . it is believe that the strip - coil - baffled heat exchanger should have promising applications in many industry fields 介绍了一种用于强化管壳式换热器壳侧传热和支撑管束的螺旋折流片新型结构,该结构是对换热器管子相间地套上螺旋折流片以产生旋涡流动.研究模型是在正方形布置的4个管子中的2个对角管子套上螺旋折流片后形成的通道,利用fluent软件对该上述四管通道模型的流场和温度分布情况进行了数值模拟;分析了四管通道模型中螺旋折流片对强化传热和流动阻力随雷诺数的变化关系的影响.算例结果显示该新型结构可比相同尺寸的光管通道中的情形传热系数提高约40 ? 55 ? ,同时也将伴随较高的流动阻力.可以相信螺旋折流片式换热器将会在许多工业领域有良好的应用前景
In this article , the author study the short - term optimization dispatching of cascaded hydropower in order to get a practicable mathematical model and arithmetic . basing on deep analysis and generalization of yilihe cascaded reservoir , the author set up a short - term dispatching mathematical model and an inner - plant economical operation model to simulate the real operation process . dynamic programming method ( dp ) is effective to solve the several problem and discrete differential dp ( dddp ) is a reduce dimension tool 本文紧密结合云南省境内的以礼河梯级水库的工程实际，在对其进行深入分析和概化的基础上，建立了反映实际问题特点的梯级电站短期调度模型和厂内经济运行模型，动态规划方法以其擅长求解多阶段决策过程问题而被本文选为优化工具，由于dddp的降维效果显著，从而使动态规划在本研究模型中得以运用。
Part two is constructing the research framework which includes constitute market orientation and corporate mo management , and accordingly the analyses of relationship between mo and corporate performance . chapterlll : the introduction of mo system model and the construction of constitute market orientation 第二部分：建立本论文的研究模型：由组合市场导向与企业市场导向管理构成的分析框架及以其为基础的企业绩效关联分析：第三章：市场导向系统模型介绍以及组合市场导向模型的构建。
