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In this study, the methodology of linear structural rela- tionship model of latent variable has been studied which is the first time in China. Some extended conclusions have been come up to, such as multi-factor congeneric measure model, the reliability of measurable variable and its hy- pothesis test, the relation between standardized solution and unstandardized solution, multidimensional path model with measure errors, and multilevel model of latent vari- able. Some examples have been shown to help apply these results in practice, such as the analyses of the children growth-development data, the bone density data and the health resources data by means of latent variable model. Not only have new explanations for these data been achieved, but also powerful patterns for applying the theoretical methods in medical sciences and other fields.

首次系统地研究了潜在变量的线性关系模型,对部分已有的结论作了有益的推广,如:多因子度量模型、观测变量的可靠性及其假设检验、标准解与非标准解的关系、有度量误差的多维通径模型、以及多水平资料的潜变量建模;并用实例阐述了它们的具体应用,如分析了儿童发育调查资料、人体骨骼密度调查资料以及卫生资源利用效益评价资料,不仅获得了这些资料本身一些新的解释,也为本文所研究的理论方法在医学科研以及其它领域科研中的应用提供了例证,也便于广大医学工作者掌握。

Moreover, this paper makes an effort in incorporating theCosserat theory in the VCFEM for the elastic-plastic analysis of heterogeneous materialsbased on the PVP. The chapters are divided as follows: In Chapter 1, the author summarizes the study on the equivalent mechanics properties ofheterogeneous materials (including the development of the universal relationship which isirrelevant to the micro structure, the discussion of the limitations of the effective moduli, thecomputation of the effective properties of heterogeneous materials with the micromechanicsmethod and the FEM, and the equivalence of the heterogeneous micropolar materials) and thepresentation, the evolution, the corresponding numerical studies of the Cosserat model and itsapplications in engineering.

本文基于参数变分原理,构建了Cosserat体弹塑性有限元分析模型并用于求解应力集中和应变局部化问题;利用Voronoi有限元法提出了适用于非均质材料宏观弹塑性性能计算的参数二次规划算法;进一步将Cosserat模型应用到Voronoi有限元法中,提出了基于Cosserat理论的Voronoi杂交有限元法,并采用参数变分原理进行新模型的分析计算。

The models combined with the constitutive equations for upper convected Maxwell, the momentum equations, the continuity equation and boundary conditions of two channel model, were used to building the complete mathematics model.

为此,本文做了以下工作:首先,为了形成对粘弹性聚合物溶液在微观孔隙中流动行为的完整的数学描述,便于从理论上研究粘弹性流体的微观驱油效率,本文针对残余油的多种微观存在形式,使用了两种孔隙模型:扩张通道模型、带横向槽的流道模型。

Chapter 9 is conclusion and future prospect. There are five innovative findings in the paper. Firstly, the evolvement of extensions and connotations of two reengineering styles is analyzed based on their high risk, and finding their trends of amalgamation. With this, the concept of corporation reengineering is then redefined combining core competence theory and ideas of process change management, and decompounding it into two parts: pre-reengineering and post-reengineering. Its inner relationships are analyzed and explained by economics theory. Secondly, establishing a analysis framework of reengineering risks, risk factors of foreign BPR are analyzed and concluded systematically for the first time. Reengineering risks are divided into three parts: plan, design and executive based on process and project management, then risk factors system is abstracted. Thirdly, 72 reengineering corporations in Jiangsu province are investigated on risk condition. Furthermore, risk factors in every part are analyzed and reduced experimentally by factor analysis method, and a risk factors system to suit Chinese corporation's reengineering is established. Fourthly, setting up a choice model of reengineering projects, the objective optimization model is presented to ascertain the weigh of each factor, a method of sequencing reengineering projects is presented so that risk of each reengineering project can be evaluated and compared effectively. Fifthly, an integration relationship model among IT, BPR and strategy is established aiming at productivity paradox derivative from IT and its dual effects on BPR, IT investment priorities in BPR is narrated deeply.

本论文的创新点体现在五个方面:1)基于上述两种重组方式的高风险性,对它们的外延和内涵演变进行了分析,发现它们日益融合的趋势;然后结合核心能力理论和流程变革管理的思想对企业重组的概念进行了界定,将其分为&前重组&和&后重组&两部分,并对其内部关系进行了详细分析,同时应用经济学理论对其进行了解释。2)建立了重组风险的分析框架,并首次较为全面地分析和归纳了国外企业重组的风险因素,根据重组的过程和步骤以及项目管理的观点,将重组风险划分为计划、设计和执行3个部分,并在此基础上提炼出企业重组的风险指标体系。3)运用现场访谈、问卷调查的方法,调查了江苏省72家企业重组的风险情况,然后利用因子分析法对每一部分的每一风险因素进行实证分析,对风险指标进行了约减,建立了比较完善的适合我国企业的重组风险指标体系。4)建立了重组变革方案的选择模型,然后针对不同的重组方案提出了确定指标权重的目标优化模型,并基于三角模糊数之间两两比较的可能度概念,提出了一种重组方案排序法,从而可以有效地对各种变革方案的风险进行评估和比较。5)针对信息技术所造成的&生产率悖论&现象及其对重组的双重影响,建立了信息技术、企业重组和企业战略之间的整合关系模型,并对重组中信息技术投资的优先权问题进行了深入的阐述。

Database of physical and chemical properties for solid wastes were constructed through investigation for single typical component and their mixture of solid wastes. The particulate trajectory model and heat transfer model were developed, based on the studies of Characteristics of solid wastes movement and heat mass transfer in rotary kiln. Pyrolysis experiments of solid wastes in lab and pilot scale rotary kiln pyrolyzers were performed. Mechanism of pyrolysis for typical solid wastes was analyzed. The characteristics of pyrolytic products, such as physical and chemical properties, composition and combustibility, etc, were investigated. A neural network model for the prediction of yields and properties of pyrolysis products was developed. Then, the potential applications of pyrolytic products and the substitution of pyrolytic fuels for corresponding commercial furls were investigated. The optimization of energy recovery and utilization for different wastes through pyrolysis was analyzed.

通过对典型固体废物组分及其混合物特性的分析,建立了固体废物的化学特性分析数据库,并据此进行了物理分类;对固体废物在回转窑内的运动和传热特性进行了研究,建立了固体物料的随机颗粒滚动理论模型和传热模型;在小型和中试回转式热解炉上进行了实验;对各种典型固体废物在回转窑内的热解机理和主要热解产物的性质进行了研究;利用神经网络等方法建立了各典型固体废物的热解产物的产率及特性的数学预测模型;对固体废物热解产物的物性、成分、燃烧特性等开展了研究,分析了其与现有商业燃料匹配的可能性;对热解产物的多种应用性能进行了研究,对不同废物热解中的能源回收和利用进行了优化分析。

In this paper the hinging hyperplanes model is extended and the deficiency is remedied at a twodimensional space. The extended model has enough representation capability, which theoretically ensures the possibility to achieve optimal approximation.

本文在二维空间上弥补了&链接超平面&模型的局限性,经扩充后的模型在二维空间上有充分的表示能力,从理论上保证了扩充后的模型可以达到最佳逼近。

In this paper the hinging hyperplanes model is extended and the deficiency is remedied at a two-dimensional space. The extended model has enough representation capability, which theoretically ensures the possibility to achieve optimal approximation.

本 文在二维空间上弥补了&链接超平面&模型的局限性,经扩充后的模型在二维空间上有充分的表示能力,从理论上保证了扩充后的模型可以达到最佳逼近。

The applications of outgassing technology in industrial field were summarized with three kinds of outgassing models analyzed, ie. Schram model, diffusion model and adsorption-diffusion model based on Malev's theory.

总结了放气研究在工业领域的各种应用,分析了真空环境下非金属材料放气的三种模型:Schram模、扩散模型和基于马列夫理论吸附扩散模型。

In this paper, the fundamental theory and methods of terrain modeling, includeregular square grid and triangulated irregular netWork, is studied.

本文研究了基于等高线的地形模型建模的基本理论与方法,包括规则格网地形模型、不规则三角网地形模型的建模。

First, the computation theory of the anti-sliding pile has been researched including interaction between the pile and tho landslide, the mechanical model of the pile and the calculation method of the internal force of the pile with prestressed anchor cable. Second, the internal force status, the mechanical computation model and the design method of the foundation beam with prestressed anchor cable have been analyzed. Finally, by the example, engineering instance and the geology mechanical model test, the main results and conclusions deduced from the thesis have been compared and validated.

论文首先对抗滑桩的相关设计计算理论进行了研究,包括抗滑桩与边坡岩土体的相互作用,抗滑桩的力学计算模型以及预应力锚索抗滑桩的内力计算方法;其次对预应力锚索地梁的受力状态、计算模型以及设计方法进行了分析研究:最后结合工程实例和地质力学模型试验对相关结论进行了分析比较、验证。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。