查询词典 two dimensional

The results of numerical analysis show that the elastic modular and the poisson ratio have no effect on two-dimensional bearing capacity, but can affect the ultimate bearing capacity of three-dimensional foundations and control the convergence and precision of finite element calculation; the earth pressure coefficient controls the geostatic stress of foundation, sequentially affects the ultimate bearing capacity of foundations and the convergence of numerical calculation. When calculating the ultimate bearing capacity of undrained saturated foundation, the complete formulation exists shear locking, and reduce formulation exists hourglassing, so the hybrid formulation is suitable to imitate the geomaterial. When the soil obeys nonrelevent flow rule, the yielding function is different from potential function, and the elastic-plastic matrix of soil is asymmetric, so the unsymmetry numerical solver and appropriate finite element mesh is required.

研究结果表明，土体弹性模量和泊松比对二维基础极限承载力没有影响，但是影响着三维矩形基础的极限承载力，控制着ABAQUS数值算法的计算精度与收敛速度；地基土压力系数控制着地基土体中的地应力平衡，从而影响着二维条形基础和三维矩形基础的极限承载力和地基破坏包络面；对于不排水饱和软黏土地基，常规的完全积分单元会造成剪力自锁现象，而减缩积分单元则存在过于柔化的现象，故采用杂交单元来模拟较合适；当土体服从非关联流动法则时，屈服函数与塑性势函数之间存在差异，从而导致土体弹塑性矩阵呈现非对称性，在有限元计算中必须采用非对称数值解法，并且合理地划分单元才能对极限承载力进行准确求解。

Through the three-dimensional viscous calculation, many important phenomena, which is impossible of observation by using the two-dimensional or inviscid models, are obtained.

三维粘流计算结果获得了许多二维和无粘模型所无法得到的重要流动现象。

The experimental results demonstrate that a 2D packing of isodiametric particles leads to distortional flow due to' microcrystallities', while the quasi-two dimensional arrangement (Q2D) with a thickness of several particle diameters and the three dimensional arrangement (3D) effectively avoid the distortion.

结果表明：二维精确等径球颗粒床具有微晶格效应，因此流动是畸变的；半圆柱仓的三维流动不出现畸变；而第3方向取几个球厚度的拟二维流动也避免了微晶格效应和畸变。

While the Chicago-Argonne experiments focused on two-dimensional sheets, they generally agree with computer simulations on similar three-dimensional assemblies of smaller nanoparticles conducted by Uzi Landman's team at Georgia Institute of Technology.

虽然芝加哥大学和阿贡实验室所做的实验主要针对二维薄片，但他们大体上认同乔治亚理工学院的乌兹·兰德曼研究小组对体积更小的纳米粒子所做的计算机模拟三维组装实验。

Objective To evaluate the value of two-dimensional CT and three-dimensional CT in the Diagnosis of maxillofacial diseases.

目的 探讨二维CT及三维CT成像相结合在颌面骨病变中的应用价值。

The experimental results indicate that the maximum slope angle measured by LSCM reaches at least 50°, and the clear three dimensional profile is obtained in the profile analysis of cantilever. Meanwhile, the deformation accurately measured by two dimensional quantitative analysis is 3.145μm, and the field area is 384μm×288μm in mosaic function equipped with LSCM in 100×objective, which can solve the problem that the watched object's total shape in single frame micrographic image can not be obtained under high microscopic enlargement times.

实验结果表明：运用LSCM测量的斜面最大角度至少可以达到50°；在悬臂梁的形貌分析中，可获得清晰的三维形貌，同时通过二维定量分析精确测得其形变为3.145μm：在100×物镜下，运用拼接功能获得384μm×288μm的视场面积，解决了高放大倍数下，在单帧显微图像中无法获取所观测对象全貌的问题。

The nonparallel linear stability of the two-dimensional and three-dimensional disturbance waves are studied by the parabolized stability equation which is developed in recent years and the local method based on the Landau expansion.

本文从Navier-Stokes方程出发，导出不同形式的流动稳定性方程，包括采用小扰动理论得到的Orr-Sommerfeld方程、基于流向慢变特性而得到的抛物化稳定性方程以及在一小范围内计算的局部法方程。

Several novel structures have been determined: Unique ninenuclear complexesincorporating 3d, 4f metals with a sodium ion center, the sodium ion may be serve as atemplate in the formation of these novel complexes; Novel tetranuclear 〓complexes with channels formed by intermolecular weak interactions; First 〓type tetranuclear complex; Peculiar "dimer of dimers" complexes derived frombinuclear complex; Unusual one-dimensional wave chain formed by weakcoordination bonds and hydrogen bonds and two dimensional coordination polymerconstructed through coordination bonds and hydrogen bonds.

1获得了多个文献首报和罕见的特殊结构的配合物：两个同时含有碱金属-过渡-稀土金属的独特的九核配合物；两个具有孔道的稀土-过渡金属异四核配合物；草酰胺类〓四核配合物；两个由双核配合物通过叠氮和单个氯原子连成的四核配合物，尤其是以单个氯桥相连的化合物非常少见；一个由弱配键和氢键连成的具有一维波浪形结构的配合物；一个通过配位键和氢键连成的二维配位聚合物。

Methods:32 patients with atrial septal defect were examined with transthoracic two-dimensional and muhiplane three-dimensional echoeardiography.

在32例先天性心脏病房间隔缺损患者中行经胸二维和多平面经胸三维超声心动图检查，测量房间隔缺损的最大直径，并与手术实测值对比。

AIM: To study the compression performance of three-dimensional CT image based on region wavelet SPIHT algorithm, underlaying the previous researches on the compression coding algorithm of two-dimensional X-ray image based on SPIHT target area.

目的：在以往对二维X射线影像进行基于SPIHT的区域压缩编码算法研究的基础上，探讨基于目标区域小波SPIHT算法对三维CT图像的压缩方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。