查询词典 boundary surface

The numerical simulation of the detection signal was implemented with the theory of diffraction optics, and the numerical simulation of the wavefront reconstruction was realized with Green function algorithm under Neumann boundary conditions.

根据衍射光学理论，对其探测信号进行数值模拟，并利用Neumann边界条件的Green函数法对其波前重构进行数值模拟。

In Chapter 6,the adaptive finite element method for a parabolic problem isextended to the problem with the Neumann boundary as its theoretic supplement.

第六章作为对抛物问题的自适应有限元方法理论上的补充，将其推广到具有Neumann边界条件的抛物问题，得到了相应的后验误差估计。

In chapter 4, using a space discretization and employing the method of induction, we prove that there exists a unique global regular solution for homogeneous Neumann boundary value problem of one-dimensional Landau-Lifshitz equation.

第四章，首先我们利用空间半离散方法及先验估计得到了一维Landau-Lifshitz方程齐次Neumann边值问题局部正则解的存在性，继而在整体先验估计的基础上证明了整体正则解的存在性与唯一性。

Aim at the shortage of vertically additive method by which we can't discuss forced oscillations of systems of partial functional differential equations,we directly use the oscillatory definition,Green's formula and boundary condition of homogeneous Neumann to change the oscillatory problem of solutions to a class of systems of quasilinear parabolic equations of neutral type into the problem of which functional differential inequality haven't eventually positive solution.

针对垂直相加法无法讨论泛函偏微分方程组的强迫振动性的不足，直接利用振动的定义、Green公式以及齐次Neumann边界条件把中立型抛物微分方程组的振动问题转化为泛函微分不等式不存在最终正解的问题，然后利用最终正解的定义及上下极限得到了在齐次Neumann边界条件下判别其所有解振动或全振动的充分条件。

Using Mellin transform and adopting the mixed boundary condition for stress and displacement differences and affer solving a set of triple integral equations and a Neumann's problem, we obtained a fundamental solution for a single crack.

本文采用裂纹二侧应力差和位移差的混合边界条件提法，通过Mellin变换，在求解了一组三节积分方程和一个Neumann问题后，精确地求得了单裂纹基本解，利用此解给出了解决这类问题的一般方法。

PubMed abstract: Cells at the anterior boundary of the neural plate can induce telencephalic gene expression when transplanted to more posterior regions.

PubMed摘要：神经板前部的细胞可以在转移到靠后部区域时，引起前脑胞基因表达。

As a calculation example, the sheet reduction ratio and the distance from the neutral plane to inner boundary are calculated and compared with published data. A fairly good agreement is obtained between the calculated results and the experimental data.

作为算例，得到了理想刚塑性材料的板料厚度、变薄系数以及应变中性层内移系数随板料弯曲内表面曲率半径变化的规律，并与实验数据进行了比较，两者吻合良好。

As a case in point, the sheet reduction ratio and the distance from the neutral plane to inner boundary are calculated in comparison with published data. A fairly good agreement is obtained between the calculated results and the experimental data.

作为算例，得到了理想刚塑性、线性强化刚塑性材料的板料厚度、变薄系数以及应变中性层内移系数随板料弯曲内表面半径变化的规律，并与实验数据进行了比较，两者吻合良好。

Newtonian fluid mechanics, nuclear physics, the theory of boundary layer.

近十年来，抽象空间中的常微分方程理论已经发展成为现代数学中的一个新的重要的分支(见[4，11，12])。

In the study, we have found that when the long axis of an elliptical transducer is 2.5 times of the distance between nodal line and the plate center under free boundary condition, the depth of the first dip in mid frequency range of SPL spectrum can be greatly reduced.

从这些关系中可以得到激振器长轴是在自由边界条件下，节线到振动板中心距离的2.5倍时，中音谷会得到比较平缓的结果。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。