查询词典 collocation of boundary

In the reduction cell, the field calculation for bath solution can be reduced to a potential boundary value problem with a given current while that for liquid aluminum is reduced to the second boundary value problem.

本文提出一种采用相对电参量计算铝电解槽电流场的方法，将铝电解槽中电解液电流场的计算归结为给定总电流的位场边值问题，铝液电流场归结为第二类边值问题。

The existence condition of first and second boundary variation was given with boundary variation method. The numerical method was obtained.

应用测度理论，将经典的变分问题，利用线性分析的方法转化为在几个Randon测度空间中寻找最优测度的有限维线性优化问题；从而得到最优控制律。

It is sea-level rising and falling of high-amplitude and low-frequency that caused sequence boundary signs of distinct characteristics and stable distributing, which included paleokarst surfaces, which included paleokarst surfaces, erosive boundary, exposure surfaces and regional freshwater diagenetic facies tracts.

对层序界面而言，由于克拉通上高幅低频的海平面升降变化，容易造成特征明显、分布稳定的层序界面标志，包括古岩溶面、冲刷侵蚀面、暴露面、区域性淡水成岩相带等。

The boundary between the transport layer and the session layer can be through of as the boundary between application protocols and data-flow protocols.

传输层和会话层之间的交界可以认为是应用协议和数据流协议的交界。

Experiment and flow visualization are conducted in a water-filled cavity which cover the range of Ra=1×10〓----6×10〓 and Pr=3. 3---6. 5. Similarity theorem is applied in analytical investigations. And core region stratification effects to heat transfer are studied. By using scale analysis, temperature and velocity profiles in turbulent natural convection boundary layer are obtained. The results reveals that for turbulent natural convection in enclosures, the bulk of the cavity fluid is essentially statement with thermally stratified temperature and the only substantial motion is that in the boundary layer along four side walls.

在实验方面，作者在高Ra范围内（Ra〓=1×10'~Ra〓=6×10〓，Pr=3.3~6.3）对封闭空间实验台以蒸馏水为介质进行了换热实验与流动显示；在理论分析方面，作者采用相似原理导出了分析解；研究了核心区温度分层规律及其对换热的影响；另外还运用尺度分析法探讨了紊流自然对流边界层温度与速度分布。

Heat conduction equation ; Galerkin boundary element method ; Indirect boundary integral equation ; Simple layer potential2000 MSC:35F99; 35K05; 80M15

热传导方程； Galerkin边界元法；间接边界积分方程；单层位势

In this paper the boundary singular kernel method is used in EFGM to impose the essential boundary conditions exactly.

本文将边界奇异权方法运用于EFGM中，实现了本质边界条件在节点处的精确施加。

Boundary singular kernel method is adopted to modify EFG shape function to impose essential boundary conditions directly.

采用边界奇异核方法对EFG形函数进行修正，直接施加本质边界条件。

On the basis of Nagumo′s existence theorem for the singular case, we obtain the existence of solutions of singular equations satisfying nonlinear boundary value conditions and periodic boundary value conditions by means of approximations.

在Nagumo型存在定理的基础上，我们应用逼近的方法给出了奇性方程满足非线性边值条件和周期边值条件的解的存在性。

The examples given have proved the advantage of the Boundary Element Method. In the analysis of the fracture mechanics using Boundary Element Method, the calculation model of one-quarter singular element has been established, and has been proved its validity.

把边界元法应用于线弹性结构断裂分析中，建立了裂尖奇异区分析的四分之一奇异元计算模型，算例表明，用四分之一奇异元分析断裂力学问题是一种有效的逼近裂尖场的数值方法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。