查询词典 preconditioned

We provide additive Schwarz methods for the mortartype rotated element, and prove that the condition number of the additive Schwarz preconditioned operator is proportional to , where H is the coarse mesh size and h is the fine mesh size.

我们提出了Mortar 型旋转Q1元的加性Schwarz方法，并证明了预条件子的条件数与（1+log）^2成正比，其中H与h分别是粗网格尺寸和细网格尺寸。

Other rabbits preconditioned withhelium received CsA (5 mg/kg) in the presence of alkalosis orCsA alone.

其他进行氦预处理的兔子在碱中毒时予以 CsA (5 mg/kg)或仅给予 CsA 。

Based on the adequate study of general method to solve linear equation group, this thesis employs incomplete Cholesky conjugate gradient method for the numerical stability and efficiency of solution process. In order to eliminate morbidity of FEM coefficient matrix and speed up its convergency, this thesis proposes a newly effective incomplete Cholesky decomposition preconditioned method and suggests some improved preconditioned schemes to the current popular ICCG methods.

为了克服系数矩阵病态特性和加快收敛速度，本文从完全的Cholesky分解出发，构造出了一种新的不完全分解预处理方法，效果显著；另外，在已有的不完全Cholesky分解预处理方法的基础上，提出了十分有效的改进方案。

Functional recovery after hemisection injury improved significantly in the late postoperative period with transplantation of preconditioned peripheral nerve.

半切损伤后移植预先处理的外周神经的术后晚期功能恢复要明显好得多。

Preconditioned method can enhance the Chahine iterative algorithm's stability. Generally speaking, to increase the inverse size classes'number will benefit the measurement precision.

本文提出了针对独立模式高反演粒级数的平滑Chahine迭代算法以及非负平滑Projection迭代算法，明显的提高了反演精度。

Preconditioned con- jugate gradient algorithm is a fast and accurate computational algorithm.

预条件共轭梯度法是一种精确并且收敛迅速的计算方法。

The preconditioned technique, which improves the convergence of linear equations, is developed.

提出从CG法中引入了预优处理方法，建立快速寻址方法，改善了解的收敛性。

The reconstruction problem is ill-posed, so two optimal criterions, the least module and the smoothness criterion base on Tikhonov regularization technique, are introduced into reconstruction algorithm. Many regularization parameters choice strategies are investigated, and the TPA(Two—Parameter Algorithm) strategy which is based on the Morozov discrepancy principles, is implemented in two regularization reconstruction algorithms.Numerical experiment results show that the nonnegative and smoothness constraint condition can overcome the difficulty of iteration semiconvergent, preconditioned technique can improve convergence rate and reconstruction accuracy, smoothness regularization criterion can meliorate ill-posed problem of reconstruction and enhance iteration stability, and the TPA is an effective strategy of regularization parameters choice.

数值试验表明：在共轭梯度法中引入非负约束和光滑约束改善了迭代的"半收敛"性，非负约束保证了解的非负性，光滑约束抑制了重建解的振荡现象，约束算法的重建精度与无约束算法相比大幅度提高；在约束共轭梯度重建算法中引入预优技术，可以加快算法的收敛速度，提高迭代的稳定性和重建精度；引入光滑准则的正则化技术可以有效改善图像重建问题的不适定性，加快迭代的收敛速度，提高迭代的稳定性和图像重建质量，计算正则参数的TPA算法在闪光照相图像重建中是有效的。

A surface preconditioned to receive paint; customers preconditioned to buy a product .

对准备油漆的表面预先处理；预购产品的顾客。

A detail comparison demonstrates that such preconditioned IbpB is distinguished from the non-preconditioned IbpB by a remarkable conformational transformation, including a significant increase in the flexibility of the N- and C-terminal regions, as well as enhanced dynamic subunit dissociation/reassociation.

我们的比较研究表明，这样的经过热休克预处理过的 IbpB蛋白与未经历过热休克条件的蛋白之间存在很大的构象上的差异，包括前者在N-和C-末端区域可曲性的明显增强，以及亚基动态分离/重结合的加强。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。