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The paper investigates finite element theory、mechanical vibration theory、thermal mechanics theory. It analyzes and researches torpedo car structure through summarizing the practical project experience. This paper establishes the reasonable finite element computing model. So as to make sure the computation gets analysis results more accurate.

本文研究了有限元理论、机械振动理论、计算机辅助工程分析方法和热力耦合理论,在总结实际工程经验的基础上对混铁车罐体结构进行分析研究,建立了合理的有限元模型,以求达到相对精确的分析结果。

These theories are mainly: neoclassicism, structuralism, theories of transfer and constringency in neoclassicism and international trade model.

这几种理论分别是发展经济学中的新古典主义典思路和结构主义思路,新古典增长理论中的迁移和收敛理论,及国际贸易模型。

In first part,The Theory and Simulation on Reconstruction Algorithms,webuild a well-defined mathematical model for OCT,on which we prove more than 10theorems,analyze and answer a series of significant questions about OCTreconstruction,from existence, uniqueness,continuousness,stability to sampling,resolution,ill-posedness and accuracy.

在上篇重建算法的理论与实践中,我们将OCT抽象为基于n维Radon变换的数学模型,从而分析、讨论、回答了从存在性、唯一性、连续性、稳定件到采样条件、分辨能力以及病态特件和重建精度等一系列在理论和了OCT的重建理论体系。

The origin、 development and present state of the container ship2. The deformation characters and collapse mode of the container ship3. The basic theory of thin-walled structural mechanics: The bending of the thin-walled beam; The unconstrained torsion of the thin-walled member bar; The constrained torsion of the thin-walled member bar with opening; The constrained of the thin-walled member bar with closed port.4. The calculation of the warp stress in the container ship based on the thin-walled structural mechanics theoryModeling of the hull ladder calculation based on referred mechanics theories of thin-walled member bar, calculation of crankle character of the each section, such as sectional coordinates、 Free twist shear flow、 secondary shear flow、 bend shear flow and so on.

本文主要包括下述六个方面的内容: 1 集装箱船的起源、发展和现状 2 集装箱船变形特征和破坏形式 3 薄壁结构力学的基本理论◇薄壁梁的弯曲;◇薄壁杆件的自由扭转;◇开口薄壁杆件的约束扭转;◇闭口薄壁杆件的约束扭转 4 利用薄壁结构力学理论计算集装箱船的翘曲应力建立船体阶梯计算模型,利用薄壁杆件力学中相关理论,求解各断面单元的弯扭特性,包括:扇性坐标、自由扭转剪流、二次剪流、弯曲剪流等。

It turns the problem of differential game into the problem of maneuver identification and optimization control based on neural networks.

阐述了微分对策理论在实际应用中存在的问题,并从动态冲突的实际过程出发,将神经网络理论与分层式智能控制理论相结合,来模型化微分对策问题。

According to the theory of flow diffusion and convection, three-dimensional state equation of radon field is established for constant and variable diffusion coefficient and convection rate. The numerical solutions for different coefficient and different boundary conditions are obtained for two models of radon field which have respectively source in the side and inside of collapse column.

根据流体场的扩散理论和对流理论,建立了扩散系数与对流速度为常量或变量情况下的氡气场三维状态方程;对於陷落柱柱体侧面有源氡气场和柱体体内有源氡气场两种理论模型,给出了不同系数和边界条件下的数值解的形式。

The origin of theoretic conflict is discussed through different methods, different angles are disclosed of the hotspots that different standards play a role in environment quality. The divarication on specialization of environment density products in industry structure is argued. At last, the pollution control effect on competition is studied by theoretical model.

从理论发展的不同脉络为线索分析南北矛盾的产生,从双方争论的热点问题探讨环境标准的差异对南北国家环境状况影响的不同理论视角,分析了南北双方产业结构中环境密集产品的专业化上存在的分歧,最后采用理论模型研究污染控制对国际竞争力的影响。

Based on the theories of welfare effect and endogenesis growth, this thesis attempts to explore China's defense expenditure demand and economic effect by means of theoretical models as well as calculation and analysis.

本研究以福利效用理论和内生增长理论为基础,通过理论模型和计量经济分析探讨中国国防支出的需求和经济效应。

In the fiber cladding and core, the optical fields are represented by the sum of the Bessel and modified Bessel functions, respectively. In the polymer and metal, the optical fields are written to the sum of the exponential functions.

针对热极化光纤的特点,本论文完成了以下理论分析和实验工作: 1、首次利用圆波导模型和标量近似理论对具有复杂几何结构的极化D型光纤的传输特性进行了理论分析。

Advanced course covering topics selected from: semimartingale theory, stochastic integrals, homogeneous chaos expansions, stochastic differential equations, Malliavin calculus, infinite dimensional processes, functional central limit theorems, Feynman-Kac formula, Feynman integral.

随机分析:高级课程,包括:半鞅理论,随机积分,齐次混沌展开,随机差分方程, Malliavin 微积分,,有限维过程,泛函中心极限理论, Feynman-Kac公式, Feynman积分,过滤理论的应用,无限粒子系统,量子力学,神经学中的随机模型。

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推荐网络例句

I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。