查询词典 problem

A The basic solution of the elastic line inclusion plane problem is deduced, then it is used to establish the Cauchy -type singular integral equations of one or two inclusions, and numerical method is set up, so the above problem is solved.

导出了弹性线夹杂平面问题的基本解，然后用此建立了线夹杂及其相互作用的柯西型奇异积分方程，并为其建立了数值法，从而使线夹杂平面问题获得解决。

In this paper, we consider a Cauchy problem for the Laplace equation, which is a classical example of ill-posed problem.

众所周知， Laplace方程的Cauchy问题是不适定的，但这类问题在工程实践中有许多应用。

We generalized the corresponding results of Cauchy problem to the initial boundary value problem on unbounded domains successfully.

把Cauchy问题中的相应结果推广到了无界区域上的初边值问题。

We show that such decomposition gives the same solution with the original problem, and discuss well-posedness of the Cauchy problem based on the stratification theory.

首先证明了这样的分解与原问题同解，然后用分层方法讨论相应Cauchy问题的适定性，从而得到了原混合问题的适定的充要条件。

Firstly, by constructing an abstract operator, the original problem can be transformed into a Cauchy problem for an abstract operator equation.

首先，通过构造了一个抽象算子，将原问题转化为一个抽象算子方程的Cauchy问题。

When the space variable is one-dimension, mathematicians had made thoroughly study in the existence and uniqueness of Cauchy problem or the first boundary problem.

当空间变量是一维时，人们对该退化抛物方程的Cauchy问题和第一边值问题解的存在唯一性已经进行了深入的研究。

Therefore,the complicated problem is simplified into asolving procedure of a group of infinite dimensional algebra equations.In thefact,not only is a general solution of the problem obtained,but also a method tocompute the dynamic thermal stress distribution at the surface of the cavity afterthe definition of the coefficient of the dynamic thermal stress distribution isgiven.

事实上，不但得到了单连通区域或复连通区域型二维孔洞表面的动态热应力分布问题的一个一般的解析解，而且，在定义了非耦合和耦合无量纲化动态热应力分布系数后，推导出计算单连通区域或复连通区域型二维孔洞表面的动态热应力分布的方法。

The paper chooses twenty-five key meadow sample plots in the Loess Plateau, then discusses the estimation model and estimation method of vegetation coverage by the pictures taken by the digital camera, and puts forward the effective solution for edge distortion problem caused by the central projection and vegetation information recognition problem.

该文选择黄土高原退耕还林还草区野外测量的25个典型样方，探讨了数码照相法估算植被盖度的模型和方法，提出了中心投影引起的边缘畸变问题和植被信息识别问题的有效解决方案。

DENNEHY: No, I think it's more a global problem anyway. It's not really a US centric problem.

丹内利：不，我认为这更是个全球化的问题，而不仅仅是以美国为中心的问题。

The stochastic Bonhoeffer-Van der Pol system is first transformed into an equivalent deterministic system using the Chebyshev polynomial approximation, so that the problem of controlling stochastic chaos is reduced to the problem of controlling deterministic chaos in the equivalent system.

首先运用Chebyshev多项式逼近的方法，将随机Bonhoeffer-Van der Pol系统转化为等价的确定性系统，使原系统的随机混沌控制问题转换为等价的确定性系统的确定性混沌控制问题，继而可用Lyapunov指数指标来研究等价确定性系统的确定性混沌现象和控制问题。数值结果表明，随机Bonhoeffer-Van der Pol系统的随机混沌现象与相应的确定性Bonhoeffer-Van der Pol系统极为相似。

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。