查询词典 constraint

The chapter first studies the closedness, semicontinuity and cone semicontinuity of cone efficient point sets and cone weakly efficient point sets of the perturbed objective sets when both the objective maps and constraint maps are continuous and the constraint cone is semicontinuous.

进而还证明了当扰动变量形成Baire空间时，大多数（在Baire分类意义下）约束集或序受扰动的联合锥弱有效解集在连续意义下是稳定的。

The paper studies the application of spherical geometry to the field of 3D geometric constraint solution and presents a geometric constraint solution method,called spherical solution method .

研究了球面几何学在三维几何约束求解中的应用，提出了球面求解法。

Tolerance allocation is according to the precision variation requirement and product processing cost. The method used for sequential quadratic programming algorithm. In the optimum model, the objective is to minimize the summation of product processing cost and then to construct the tolerance stack-up constraint conditions and the self-tolerance boundary constraint conditions.

公差配置则是根据精度变异范围进一步分析其成本，透过使用序列二次规划最佳化方法，以最小制程成本为目标，建立主轴组装误差堆叠限制条件与个别公差限制条件作公差配置。

Bipartite matching is adopted to adjust the relations between the constraint equations and variables, and then the matching result is mapped to a data structure named Engineering Constraint Graph. A solving sequence is achieved by topology sort and strong connected component condensation of ECG.

先使用二分图最大匹配调整约束方程与自变量之间的匹配关系，然后将匹配结果映射为工程约束图，通过对工程约束图进行强连通分量凝聚和拓扑排序，得到求解序列。

For inheriting the dynamic constraint information of the multibody simulation model, topological configuration of the multibody simulation model was built, and simplified constraint form was put forward with the topological mapping of the multibody simulation model in the heterogeneous systems. To transform the information of the multibody simulation model, the offset matrix which transformed the location and orientation of constraints and the matrix which transformed the location and orientation of parts were computed.

利用多体动力学仿真模型在异构系统的拓扑映射，建立多体动力学仿真拓扑构型，提出仿真模型动力学约束的约束简型表示法，实现动力学约束信息的关联继承，并通过约束偏置变换矩阵和构件位姿变换矩阵的求取，驱动多体动力学仿真模型构件和约束位姿的自动调整，实现多体动力学仿真模型的动态转化。

A modeling method for product family based on EAC (Entity-Attribute-Constraint) was proposed, which described product family as triple of entity, attribute and constraint.

提出基于实体－属性－约束(entity-attribute-constraint， EAC)模型的产品族建模方法，将产品族表达为实体、属性、约束三元组。

In chapter 2, the paper considers about applying the regularized method with a variance uniformization constraint to image restoration, therefore we discusses the relation between the variance of the restored image and the singular value of the discrete matrix of the blur operator in detail, and theoretically proves the well-posedness of the regularized method with a variance uniformization constraint.

在第二章中，本文考虑将带一致方差约束的正则化方法应用于图像的恢复，为此详细讨论了恢复图像的方差与模糊算子的离散矩阵的奇异值之间的关系，并从理论上证明了带一致方差约束的正则化方法的适定性。

The first part gives a constraint on partition, in such a way that a cubic spline of interpolation under such a constraint of partition uniformly converges to a continuous function.

第一部分给出分划的一种限制，使在此限制下三次插值样条一致收敛于连续函数。

The estimation on the zone constraint violation was avoided; as a consequence the selection of the approximate setpoint when the control variable violates its zone constraint was skipped.

本文对具有区间预测的控制算法进行了研究，提出了一种新的"软约束"实现方法，不需要判断输出变量是否违反区间控制要求，避免了近似设定值的选取问题。

Then the weak formulation of the control equations considering the contact constraint conditions has been developed. Combined the Lagrange multiplier and penalty function methods, the augmented Lagrangian method is used to treat the contact constraint and solved the non-linear and non-smooth problems of the mechanical response perfectly. A finite element model has been applied for the test project of the reinforced slope and to study the mechanism of the interaction of the soil and reinforced material.

本文在Lagrangian网格的控制方程中引入接触界面条件，并采用了经典的Coulomb摩擦模型作为界面切向面力的本构模型，继而发展了考虑接触约束条件的控制方程的弱形式；在求解方法上，综合了Lagrange乘子法与罚方法的优点，采用增广的Lagrangian方法处理接触界面约束，很好地解决了接触问题中的高度非线性和响应不平滑性。

The top of neural tube forms basic encenphalic shape,namely endbrain, interbrain, midbrain and afterbrain. The abnormal closure of neural tube will result in neural tube detects. Encephalocoele is a common congenital malformation whose mechanism was no known. NO participates in the physiologic process of brain.

胚胎脑发育的早期阶段主要是神经板隆起、弯曲、闭合形成神经管，神经管的头部从前向后依次发育形成脑的基本组织形态，即端脑、间脑、中脑、后脑，在神经管闭合过程中出现异常就会导致NTD。

I am always distressing my study.

我一直苦恼自己的学习。