查询词典 adjoint boundary value problem

As for mixed problem with integral boundary conditions for a certain nonlinear pseudo-parabolic partial equation, the existence and uniqueness of a strong solution to the corresponding linear problem is established and so the nonlinear problem can be solved by using addition theorem.

对于一类非线性伪抛物型方程的带积分边值条件的混合问题，本文通过相应的线性方程利用迭加原理来解决。

Image segmentation based on the graph concept is analyzed in our thesis, a boundary finding problem is formulated as a shortest-path problem in a graph, then a watershed algorithm based ort image foresting transfonn is introduced, which is a unified and efficient approach for simplifying image processing problems to a minimum-cost path forest problem .

将图的概念应用于图像分割的研究中，把边界发现问题归结为图中的最短路径问题，从而引入了一种基于图像森林化变换(Image Foresting Transform，该方法是把图像处理问题简化为在图中求解最短路径森林问题的一种统一有效的方法)的分水岭算法，并分析了平滑滤波、梯度阈值在图像分割中的作用。

This thesis studied a kind of free- boundary problem that is abstracted from the model of tumor growth, and this problem is called quasi- steady problem.

本文研究了动物体内肿瘤生长过程中所提出的一类自由边界问题——拟稳态自由边界问题。

As same as the above-mentioned reason, because theconditions at the inside straight boundary of the binarycomposite material can not be easily satisfied, here, anelastic circular inclusion with large radius is used to replacethe upper half space of the binary composite material, so the〓mary binary composite mater ial problem can be changed〓the scattering problem of a circular elastic inclusion andto the scattering problem of a circular eastic inclusion and〓circular cavity in an infinite space to the steady incident〓wave.

与前面两个问题的理由一样，同样，由于问题中双质复合材料的内部直边界上的边界条件不易解析满足，为此，本文采用了一个半径很大的弹性实夹杂来代替问题中双质复合材料的上半空间部分，而将原来的双质复合材料问题转化成了无限大空间中一圆形弹性夹杂和一圆孔对稳态P波的共同散射问题，根据该问题的特点写出了弹性夹杂内外波场中波函数的一般形式解，利用该问题中夹杂和圆孔处的位移和应力的连续条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了双质复合材料中圆孔边界处的动应力集中系数随不同入射角、圆孔的不同位置、以及入射波的不同无量纲波数的变化和分布情况。

The article is in the Marxism is basic on the foundation of economic theory, analysed the capital loop process of joint-stock company, reach the following conclusion: The source that acting problem arises is possessory with the operator contention to surplus value, theoretic the key that solves acting problem is to solve handler the problem of double identity simplification, let operator own partial surplus value.

本文在马克思主义基本经济理论的基础上，分析了股份公司的资本循环过程，得出以下结论：代理问题产生的根源是所有者和经营者对剩余价值的争夺，理论上解决代理问题的关键是解决经理人双重身份单一化的问题，让经营者拥有部分剩余价值。

Firstly, the approach formulates a cost functional to turn the inverse problem into a constrained minimization problem according to least squares criterion, then the resulting constrained minimization problem is transformed into an unconstrained minimization problem by using a penalty function technique, and then the closed Fr chet derivatives of the Lagrange function with respect to the properties are derived based on the calculus of variations, finally, one can solve the resulting problem by using any gradient-based algorithm and the finite-difference time-domain method.

该方法首先以最小二乘准则构造目标函数，将逆问题表示为约束最小化问题；接着应用罚函数法转化为无约束最小化问题；然后基于变分计算导出闭式的拉格朗日函数关于特征参数的Fr chet导数；最后借助梯度算法和时域有限差分法迭代反演德拜模型参数。

Market malfunction is caused by the following five aspects, information problem, exterior problem, monopoly problem, short-term action problem and distribution problem, which needs government control.

市场失灵是由信息问题、外部性问题、垄断问题、行为短期化问题和分配问题等五个方面造成的，需要政府来管制。

Think, the traditional economics research about human problem is more the ground is the premise that regards research as economic problem, new system economics revised the human hypothesis point of view in traditional economics afresh, undertook immediateness real research more to human problem, and as a result of,be in charge of criterion of a Confucian school of idealist philosophy of the Song and Ming Dynasties its core problem -- the management to the person, accordingly, its formed management to learn the serious content of research to the research itself of human problem.

认为，传统经济学有关人性新问题的探究更多地是作为探究经济新问题的前提，新制度经济学则重新修正了传统经济学中的人性假设观点，对人性新问题进行了更接近现实的探究，而管理学则由于其核心新问题——对人的管理，因此，其对人性新问题的探究本身就构成了管理学探究的重要内容。

If a company went a problem, we can say this is the problem that company interior administers, but if a lot of companies went a problem, then we can say this is the problem of the market only, the problem of the system.

如果一家公司出了问题，我们可以说这是公司内部治理的问题，但如果很多公司都出了问题，那我们只能说这是市场的问题，制度的问题。

First,this problem is converted into the problem of H_2 opmization constrainedby H_∞performance and pole location,then an auxiliary perfomance function is introduced,andthe former problem can be converted into the optimal problem of minimization of the auxiliaryperformance function with constraints described by a matrix equation,at Jast this problem issolved by lagrange multipliers,and the static output feedback controllers are designed.

首先将文题转化为一个具有H＿∞性能和系统闭环极点位置约束的系统H＿2性能优化问题。进而通过引入一个辅助性能函数，将其转化成有一个矩阵方程约束的辅助性能函数的最小化优化问题，并给出这个问题静态输出反馈控制器的解。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。