目的探讨三维超声体元模型成像对胃十二指肠疾病的诊断价值。
Objective To evaluate the clinical application of three-dimensional ultrasonographic image in gastroduodenal diseases.
体元模型由块体组成，块体之间界面采用连续函数或离散点插值表示。
The volume element model is composed of blocks, in which the interfaces between blocks represent by continuous function or interpolation at discrete points.
本文基于费马原理，利用全路径迭代算法实现体元模型中的三维VSP两点射线追踪。
Based on Fermat's principle, the paper USES full-path iterative algorithm to realize 3-d VSP two-point ray tracing in volume element model.
此法在洞室附近使用块体元模型，以反映节理岩体变形的不连续性，而在远处使用连续的有限元模型，以减少计算工作量。
The block element are used to model the rock masses near the cave so that the discontinuous deformation of jointed rock is dealt with easily and the computational effort is reduced accordingly.
在模拟模型中，代表时间旅行的将会是等离子体激元在它们之前走过的路径上完成一个环。
In the toy model, the equivalent of time travel would be for a plasmons to complete a loop that runs along the exact same path it had previously traveled.
方法采用螺旋CT扫描、计算机图像处理及CAD技术，建立含腭部种植体的上颌骨三维有限元模型。
Methods A three-dimensional finite element model of maxilla containing palatal implant was built using spiral CT scanning, computer image processing, and CAD technology.
实验表明，研究的新算法用于四面体单元的有限元模型，具有良好的切割处理效果。
Experiment results show that using this new algorithm for tetrahedron, finite element model can provide well visual result.
建立发动机、发动机安装结构、机体一体化的有限元模型，可全面考察发动机安装结构动力优化设计的成效。
Upbuild the incorporate finite element model for the engine, engine install and aircraft stracture, May entirely seeing about the effect for dynamical optimize design of engine install stracture.
利用有限元和冲击理论建立了SP压力调宽机含间隙的刚体和弹性体的动力学模型。
The SP mill dynamics model rigid and flexibility with clearance was built using finite element and impact theory.
首先建立了一种能够有效地表达矿区地质数据复杂空间分布的超体元数据模型；
A supervoxel data model is introduced to represent exactly the complex space distribution of geological data in the coal mining area.
基于元胞自动机分形模型，探讨了散粒体自组织临界性(SOC)的机制。
Based on a fractal cellular automata model, the mechanism of self-organized criticality (SOC) of granular mixtures was investigated.
目的：通过建立一个含不同直径、不同长度种植体的上颌骨三维有限元模型，并进行应力分析，选出最佳的支抗种植体。
Objective: Built a three-dimensional finite element maxillary model including different diameter and length anchorage implant and analysis it, which can be used to chose the best implant.
用来描绘木材弯曲蠕变的粘弹性模型都是由一个马克思维尔体和两个开尔文体所组成的六元件模型。
The viscoelasticity model used to describe the bending creep of wood is a six element model composed of one maxwell and two kelvin systems.
文中采用非线性有限元分析方法，并运用沈珠江模型作为堆石体本构模型对面板堆石坝坝体及面板做应力和变形计算。
The paper calculates the deformation and the stress of dam body and face for concrete faced rock fill dam with non-linear finite element method and taking Shenzhujiang model as rock fill body model.
与其他数值软件一样，用三维离散元程序(3dec)模拟应力波在节理岩体中的传播和衰减时，模型参数对模拟结果有很重要的影响。
Model parameters have the important effects on three-dimensional distinct element code (3dec) modeling of the stress wave propagation and attenuation in jointed rock masses as well as other codes.
在假定该材料宏观上是均匀与连续的条件下，选取了织物的一个完全组织及所包含的树脂作为一个代表性体元来建立分析模型。
Assuming that the composites are homogeneous and continuous on macrostructure, a representative volume element (RVU) including a stitch repeat and resin was taken to setup analysis model.
结论：同型半胱氨酸加重离体帕金森病模型动物的多巴胺能神经元损伤，其机制可能与氧化应激反应有关。
CONCLUSION: Homocysteine can aggravate the injury of dopaminergic neurons in animal models of Parkinson disease, and the mechanism may be associated with the anti-oxidative stress.
为检验车架结构分析的有限元模型，通过一具体车架的刚度试验，总结出一套实用的车架刚度试验方法。
In this paper a practicable testing method for frame rigidity is described. The method is aimed at checking the finite element model of frame structure analysis.
建立了高压容器筒体与封头结构的有限元分析模型。
The finite element analysis model of cylinder and vessel head structures was established.
本文利用互相配合的弹性体配合表面上位移连续条件及力的等值条件建立了计算过盈应力的有限元模型。
In this paper, the finite element model for calculating interference fit stress is formed by using displacement continuous condition and equal value of force condition on the fitting faces.
本文结合一超高层钢筋混凝土剪力墙一核心筒结构的模型试验与有限元动力分析，对超高层筒体结构的动力特性作了具体研究分析。
Incorporating with the model dynamic experiment and Finite-Element seismic analysis of a shear-wall superhigh building, paper gives the earthquake resistant behavior of such structures.
给出了用有限元方法对金属材料等离子体弧金属表面强化处理过程数值模拟的数学模型。
The paper provides the mathematical model of numerical simulation for metal surface hardened by plasma-arc with finite element method.
背景资料概要：非线性有限元模型被报道来猜测体外的椎体强度，但尚未应用于临床。
Summary of Background Data. FEM has been reported to predict vertebral strength in vitro, but has not been used clinically.
将螺旋体分解成螺旋轴和螺旋叶片两部分，建立LS200螺旋体结构的CAD模型，并对其进行有限元网格的划分。
CAD model of LS200 helical structure is established by dividing the helical body into helical axis and helical blade and finite element meshing is performed.
方法采用螺旋ct断层扫描、计算机图像处理、计算机辅助设计和有限元软件处理，建立含腭部种植体的上颌骨三维有限元模型。
Methods Spiral ct scanning, image processing and CAD technology and FEM software were employed in the study to construct the three-dimensional finite element model of maxilla with a palatal implant.
介绍堆石体的几种本构模型，用二维有限元方法分析了混凝土面板堆石坝的应力变形特性。
The article introduces several structural models, as well as analyzes the stress deformation feature of concrete face rockfill dam using two dimension finite element method.
以节理岩体等效刚度的概念为基础，讨论了离散元刚性块体模型中节理刚度的选取问题。
Based on the concept of equivalent stiffness of rock masses, the estimation of joint stiffness in distinct element model of stiff blocks is discussed.
基于物元模型和聚类分析，提出了岩体边坡稳定性的可拓聚类预测方法。
Based on the matter-element model and the classified analysis method, an extension classification prediction method for the stability of rock-mass slopes is proposed.
本文用有限元法模拟滑体为砂粘土的模型试验条件，对抗滑桩的变形及土体抗力进行分析。
According to the test condition when slide mass is sandy clay, the authors study the deformation of anti-slide pile and soil resistance.
本文用有限元法模拟滑体为砂粘土的模型试验条件，对抗滑桩的变形及土体抗力进行分析。
According to the test condition when slide mass is sandy clay, the authors study the deformation of anti-slide pile and soil resistance.
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