查询词典 jacobi bracket

In Chapter One we give the background of large unsymmetric matrix eigenproblems and basic numerical algorithms for solving them. We review the state of the art of this subject. Finally, we describe the work of this thesis. In Chapter Two we make two improvements for the Jacobi-Davidson method combining with the refined projection principle.

本文正是在这一思想的引导下，对Jacobi-Davidson类方法进行了研究，全文共分四章：第一章介绍大规模非对称矩阵特征问题的来源、解决这类问题的基本方法以及本学科的发展现状、最后介绍本文所作的工作。

The optimal dynamic unlimited excess of loss reinsurance using the mean-variance premium principle is studied. Following Hipp's theory, a corresponding Hamilton-Jacobi-Bellman equation is obtained to minimize the ruin probability, and existence and optimality of the solution is proved.

考虑具有均值－方差保费原理的超额损失再保险的最优策略问题，沿用Hipp的理论框架，以最小化破产概率为目标，得到一个Hamilton-Jacobi-Bellman方程，并证明了其解的存在性及最优性。

With the increase of vibration frequency, the variation process of Jacobi matrix eigenvalue was calculated. According to the position of eigenvalue crossing the unit circle in the complex plane, the stability of fixed point of the map was discussed and the route from periodic motion to chaos via period-doubling bifurcation was received.

以振动频率为控制参数，计算得到映射Jacobi矩阵特征值的变化曲线，根据其穿越复平面单位圆的位置，分析了映射不动点的稳定性，获得了碰撞运动通过典型的倍周期分岔通向混沌的过程。

Compared with traditional method by solving a Jacobi matrix, calculating account is greatly decreased because only displacement and center of buoyancy need computing while those elements of waterline plane are not required.d Based on the research mentioned above, the paper presents the computer programmes of compartment definition, free surface effection, and some modules of the programme of the intact and damaged stability calculation.

与传统的拉格朗日乘子法相比，该优化方法公式推导简单，而且每次迭代只需计算水线面以下的排水体积和浮心坐标，不需计算水线面上的面积、漂心、惯性矩等要素，计算方法直接简便。 4在以上理论研究的基础上，开发了舱室定义，自由液面修正的计算机软件；编制了船舶完整、破损状态下的浮态、稳性计算的部分模块。

This article discusses the linear complexities of generalised Legendre sequences and two classes of generalised Jacobi sequences.

Legendre序列和Jacobi序列的伪随机性良好［1］，文［2］又给出了Legendre序列的线性复杂度和反馈多项式。

Bracket of automatic rivet machine is an important equipment for riveting aerofoil, its automatization and reliability affect riveting speed and quality.

自动钻铆机的托架系统是完成机翼铆接的重要工艺装备，其自动化程度和工作的可靠性直接影响机翼铆接的速度和质量。

A project is brought forward about test and control system based on VI for bracket of aerofoil automatic rivet machine in this thesis, the project which has logical framework is designed with advanced theories, it introduces the latest technology and gives attention to practicability.

本论文提出了基于虚拟仪器的机翼自动钻铆机托架测控系统的技术方案，该方案设计原理先进、结构合理，既采用了最新的技术，又充分考虑了系统的实用性。

You can see in this pic that I had to re-position the aluminum angle bracket farther aft.

你可以看到在这方面的事先知情同意，我不得不重新定位，铝斜支架远尾部。

So both records agee although there are some erros on the part of Genesis as regards the infacy description of Ishmael who at the time of their depature was 17 years of age, yet he still regared as a child but both records are similar although with a slight difference of the exact age bracket.

因此，这两个记录agee尽管有一些错误的部分成因至于infacy说明伊斯梅尔谁的时候，他们depature是17岁，但他仍然regared作为一个孩子，但都记录类似但略有差异的确切年龄段。

Remove L shape bracket from one side of air gap drain.

从气隙排放装置的一侧拆卸L型支架。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。