约束

Under this principle, we present an algorithm of matching-motion fusion for point primitives and have solved some matching problems which are intractable by existing matching methods.

在关于匹配与运动的融合的研究中，我们在计算理论上提出了用运动约束匹配的运动一致性准则，提出了点基元情况下用运动约束匹配的算法，并以此解决了一些通常匹配方法无法解决的匹配问题。

Nonholonomic constraint is the constraint that contains time derivatives of the generalized coordinates of the system and is not integrable.

非完整约束是指含有系统广义坐标导数且不可积的约束。

Since the nonholonomic constraint constrains the time derivatives of the generalized coordinates of the system and does not reduce the degree of the system configuration freedom, the number of the dependent control inputs is less than the degree of the system configuration freedom, which leads to a difficulty in controller design.

由于非完整约束是对系统广义坐标导数的约束，它不减少系统的位形自由度，这使得系统的独立控制个数少于系统的位形自由度，给其控制设计带来很大困难。

It is proved that arc coordinates of a directed curve cannot be used as ordinary coordinates or generalized coordinate s for the motion of an Appell-Hamel particle without a fixed orbit, but they can be used as quasi coordinates.

证明了弧长坐标 s在轨道未知的 Appell- Ham el质点运动中不能作为普通坐标或广义坐标，但可以作为准坐标，指出文献 [1]中引入弧长 s坐标的做法及"Appell- Ham el质点运动的轨迹是一般螺线"的结论是正确的，但其Appell- Ham el约束是完整约束及在该质点运动中 s坐标是广义坐标的观点是错误的。

On the basic that existing second-order sufficient condition for an isolated minimizer of order 2 for unconstrained multi-objective optimization, using the so called oriented distance from a point to a set, l-stable function and generalized second-order Peano direction derivative, some second-order sufficient conditions for an isolated minimizer of order 2 for constrained multiobjective optimization problems with l-stable functions are obtained.

在已有的无约束l-稳定函数多目标优化问题的二阶充分条件的基础上，借助定向距离函数和l-稳定函数的性质及引入的广义二阶Peano方向导数，进一步刻画了具有抽象约束的l-稳定函数的多目标优化问题的二阶孤立极小点的二阶充分条件。

Some relations between generalized KT-properly efficient solution and generalized H-local-properly efficient solution are obtained under appropriate conditions.

在实用中，由于在给定的约束条件下求得的目标函数的最优值，有时会不符合人们的要求，因此有必要考虑当目标函数的最优值作适当改进时，如何使约束条件进行极小扰动的问题。

The profile is represented by three links: geometrical element link, topological constraint link and dimensional constraint link.

轮廓描述由三部分组成：几何描述、拓扑约束描述和尺寸约束描述。

A unified form of Hamilton principle in intrinsical linear nonholonomic system is studied in chapter 4. Lastly, this paper presents the conclusion and the prospects of the nonholonomic dynamics.

本文首次提出了本质线性非完整约束和本质非线性非完整约束的概念，并将非完整系统区分为本质线性和本质非线性两种不同的情况。

To solve the ill-posed problem of the super-resolution image regularization reconstruction, an energy function based on p harmonic mapping regularization and super-resolution image observed model was drawn.

针对超分辨率图像重建过程中的正则化约束问题，本文提出采用p调和映射进行正则化重建，根据超分辨率图像观察模型及正则约束，给出相应的能量泛函，并采用动态偏微分方程演化来求解能量泛函。

Bold or insolent heedlessness of restraints, as of those imposed by prudence, propriety, or convention.See Synonyms at temerity

大胆破格，创新性：鲁莽或无视任何约束，如那些用慎重，规矩或传统来强加的约束参见 temerity

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐