进行选择
- 与 进行选择 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper follows the trail of views from advocator of strategic cost management and analyses the thought and principle from such aspects as purpose, subject, methods and information system.
通过追溯战略成本管理倡导者的观点,从战略成本管理的目标、对象、方法体系、信息系统的角度对战略成本管理思想进行了探讨和研究,并对战略成本管理工具主要功能进行了分析和评价,从而为企业应用战略成本管理理念和管理手段,寻求企业成本持续降低和获得持续竞争优势的战略选择提供了科学的依据。
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The effect of alkaline metal, alkaline-earth metal or rare-earth metal oxides doping to Pd/γ-Al〓O〓 on the properties of supported palladium catalysts were investigated.
研究含氧条件下单Pd催化剂上进行丙烯选择催化还原NO的反应,考察浸渍法制备的Pd/γ-Al〓O〓催化剂中加入碱或稀土金属氧化物助剂对NO转化率的影响,并对催化剂进行了XRD表征及在氧化气氛中饱和吸附NO后的TPD研究。
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Then mainly and secondary risk factor analyze to BOT project on the basis of consulting a large number of materials, choose the main participant based on project of the fuzzy method to carry on quantitative appraisal to it, the result appraised is applied to the concrete research of allocation of risks.
然后在查阅大量资料的基础上对BOT项目中的主要及次要风险因素进行分析,并选择模糊方法基于项目的主要参与方对其进行定量的评价,评价的结果应用于风险分担的具体研究中。
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In this paper, based on the former researches, satellite altimetry is used to monitor the water level changes of seven inland lakes in China. The contents and conclusions of this research are as following:1. Based on the characteristics of altimetric waveform, methods of improved waveform retracking are put forward. DEM or DTM model is introduced as the standard to estimate the retracked range for waveform retracking.
本文在借鉴以往研究成果的基础上,利用卫星测高技术对我国7个内陆湖泊的水位变化进行了监测研究,主要研究内容及结论如下:(1)在对原有波形重定方法深入研究的基础上对其进行了改进,使用DEM或DTM模型作为波形重定后改正结果的选择标准,并利用Fortran语言设计了波形重定软件。
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At the same time, this thesis focuses on the theoretical research on the LBGK method and discusses the inner relation between the LBGK and the N-S equations.The relationship among the selection of velocity group , the forms of equilibrium distribution functions,and the macroscopic N-S equations is clearly revealed.LBGK method has many advantages, such as easy dealing with the complex boundary conditions and high amenability to parallel computing.
本文系统地总结了各种LBGK模型,特别是对LBGK模拟二相流和多相流模型进行了认真地研究;同时从新的角度对LBGK进行了理论研究,用全新的方法探讨了LBGK和N-S方程的本质联系,清晰地揭示了速度族的选择、平衡态分布函数的形式和宏观NS方程三者之间的关系。
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Especially the anabranch water level is raisen great and the flow speed slow down obviously for holded up by the Yangtze River, and the rate of water eutrophication is raisen. The thesis chose the typical branch river, Xiaojiang river, to sample and research the eutrophication degree , and discover that the eutrophication of branch river are serious.
本论文主要选择了典型消落带断面,分析了浮游生物种类,并以典型流域——小江流域,对该流域的消落带水体的富营养化程度进行了调查、采样、监测和分析,并运用模糊数学理论建立了评价模型,对消落带水体的富营养化程度进行了评判,发现蓄水后长江支流富营养化现象较为严重。
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The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.
本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。
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In this paper, Anethole Trithione was selected as model drug to examine whether using a relative standard substance as a substitute of the real standard substance to evaluate the bioequivalence of different drug preparations was rational and feasible when the real standard substance was out of reach.
本课题选择茴三硫为模型药物,尝试在特殊情况下进行新药研究开发早期的生物利用度评价时,用相对对照品进行无对照品条件下的生物利用度评价的合理性和可行性。
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These above problems, which are very important and valuable in agricultural crops area monitoring, are currently less researched. Hence, in this paper, seven types of common texture and five vegetation indices were respectively added into TM multispectral bands to classify using three different methods, which are Minimum Distance, Maximum Likelihood and Support Vector Machine, and analyze the effect on winter wheat identification accuracy by comparing the classification results. The contexture include Mean, Variance, Homogeneity, Contrast, Dissimilarity, Entropy, Variance, Angular Second Moment and Correlation, and the vegetation indices are RVI, SAVI, RDVI, NDWI and SLAVI.
为此,该文将平均值、方差、均一性、反差、相异性、熵、角二阶矩、灰度相关7种纹理信息以及比值植被指数、土壤调整植被指数、重归一化植被指数、植被液态水含量指数、有效叶面积植被指数5种植被指数信息分别加入到TM多光谱数据中,同时还进行了最佳波段选择,利用最小距离、最大似然和支持向量机3种方法进行分类提取小麦,研究了不同特征信息对小麦测量精度的影响。
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We choose a project with loaded annual ring microstrip antenna, and the character of compact and broadband is achieved by loading a chip-resister to the antenna. The antenna is analysed by the software based on MOM.
文中选择与引信弹体共形的环形微带天线作为设计方案,通过对环形微带天线加载电阻,实现天线的小型化和高带宽;使用基于矩量法的电磁仿真软件对天线进行分析,并对天线参数进行了测量,给出了天线性能的仿真和测试结果。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。