离散问题

The difficult points of cost plan and control for large-scale intermittent manufacture include laying stress on controls of product project cost, preconstruction on cost standard reference system, reasonable share for total cost, structure of target cost as well as symmetrization of cost information, etc.

大型离散制造企业成本计划与控制的难点有：产品项目成本控制的特殊需求、成本标准参照体系的预构建、总额费用的合理分摊、目标成本的体系结构、成本信息的对称问题等。

The chapter 5 considers the chaos synchrony problem for a class of discrete uncertain systems with time-delays.

在第五章中，研究了离散混沌系统的状态同步问题。

Since it is an inverse problem, numerical techniques, such as discretization of the integral into a system of linear equations, are necessary.

由于这是一个反问题，一些数字技术比如将积分离散化为一个线性方程组是必需的。

Corrected Smoothed Particle Hydrodynamics method based on Taylor expansion is proposed, which will remove the shortcomings of conventional SPH, and so it is a good method indeed.

建立在Taylor展开思想基础上的改进的光滑粒子法，可以有效地克服传统光滑粒子法中存在的这些问题，因此是一种更为理想的离散格式。

Themethod combines the deterministic optimization technique with the orthogonaloptimal experiment method to change the 2￣n vertices of the tolerance region into(n+1)constraint conditions,and uses nondifferent...

该方法应用确定性方法和正交最优化方法相结合，将容差域的2￣n个顶点离散为n＋1个约束条件，并利用不可微规划直接得到DCTT问题的最优解。

ABSTRACT On the basis of systematical research on triangular Bezier surface modeling, the author mainly studied the applications of this mo...

本文在系统研究离散数据曲面造型理论的基础上，着重研究解决了Bezier三角曲面造型在工程中的实际应用问题。

On the basis of systematically discussion of theories and methods of scattered data interpolation, the author mainly studied the problems raised from the practical application of Triangular Bezier surface.

本文在系统研究离散数据曲面造型理论和方法的基础上，着重研究解决三角曲面方法在工程中的应用问题。

The polynomial function bases are used to form the approximately matching function. Moreover, the discrete values of grey image is transformed to polinomial function that are exact fit at the considered pixel locations. As a result, The mathematical operations performed such as derivation, integration, and gradient evaluation also give out the polynomial functions, therefore, the system of undetermined coefficient equations is derived to be a system of linear algebraic equations.

我们把立体匹配过程看作泛函的极小化过程，因此选用变分问题近似解法的Ritz法构造数值算法，以多项式函数为基构作匹配函数的近似解，进而又利用多项式过样值点的拟合将离散的灰度图象变换为多项式函数，因此计算中所需的求导，积分，及梯度运算的结果仍然是多项式函数，最终将待定系数方程组化为线性代数方程组。

In this paper, the effects to image reconstruction by adopting different ways of sequence's truncation in unrelaxed iterative algorithm is discussed and further studying on the conditions to iterative reconstruction with phase -only have been done.

Sh~n在1949年发表了采样定理，提出在一定条件卜，可以用离散采样值重构带限连续信号。七十年代，l铭an等人提出了几个从零交叉点重构带通或带限信号的定理及其算法。1983年J.L.C.Salu和T.S.Huang对各种关于频谱有限信号外推问题的算法进行分析，提出了统一的迭代算法。

Experimental results contrast to PSO on well known and widely used various nonlinear chaos systems indicate that proposed algorithm is robust and efficient for UPO of discrete chaotic system.

第七章对于一般的离散混沌动力系统的控制问题，考虑到控制混沌是混沌理论走向应用的关键，一方面提出基于EA的控制策略：首先采用EA自适应的找到该混沌系统的不稳定周期点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。