查询词典 fast neutrons

The reaction of forming tetrahydrogenfuran derivatives is fast than that of forming tetrahydrogen -pyrrole derivatives.

1形成四氢呋喃环化衍生物反应的速度比四氢吡咯的速度要快。

The snippets in this recipe are fast, readable, and Pythonic.

这个配方中的代码片断是快速的，可读的且Pythonic。

In this paper, the fast QR decomposition of block-Toeplitz matrix is discussed.

讨论了块－Toeplitz矩阵的一种快速QR分解及算法实现。

For this purpose,a fast recursive algorithm is presented based on an inverse QR decomposition in this paper.

本文基于逆QR分解技术提出了一种求解空时二维自适应处理权值的快速递推算法。

But this may result to the control quality decline. In this paper, on the basis of fast algorithm, we used the quadratic programming form to constraint the control variable in the whole time domain.

本文在快速算法的基础上，采用二次规划的形式，对整个预测时域的控制量加以约束限制，满足约束条件，控制效果良好，且节约了计算量。

In view of it, the algorithm based on the Fast Fourier Transform techniques with quadratic interpolation in the frequency domain is mainly presented. After that,the simulation is carried on and analyse the simulation curves deeply. It ndicates that this algorithm can not only enhance the frequency resolution, but only estimated frequency has high reliability and excellent stability. And it\'s feasible.

主要介绍一种基于FFT和在频域内二次插值的频偏估计算法，之后进行仿真、深入分析仿真曲线，结果表明该算法不仅可以提高频偏估计的精度，而且频偏估计值具有很高的可靠性和良好的稳定性，该算法是可行的。

This method takes the advantages of fast convergence of CG and not easily to trap the local extreme of SH, which make it can converge to global extreme at a high rate of speed in solving the problems of quadratic function optimization.

这种方法结合了共轭梯度法的快速收敛和随机爬山法的全局收敛的优点，在求解二次函数极值的问题上具有收敛速度快，并能收敛到全局极值的特点。

He and Wu proposed fast digital signature scheme, which is based on quadratic residue (called H-W digital signature scheme).

Shao设计的方案进行分析，并提出两种攻击方法。

Some questions in digital elevation model were discussed detailedly, such as the obtaining of data points, the fast searching of reference points, the interpolation algorithm of quadric surface, the abnormal data eliminating, and so on. And this paper has realized the 3D vectorization of 2D terrain maps, the 3D display and edit of DEM data with the help of secondary development of CAD.

文中详细讨论了数字高程模型中数据点获得、参考点的快速搜索、二次曲面的插值算法、粗差剔除等内容，并运用AutoCAD二次开发技术，实现了二维地形图的三维矢量化以及DEM数据的三维显示和编辑修改。

A simple and fast algorithm is based on iterative edge collapse and quadric error metric to simplify mesh models.

给出一种基于递进网格和二次误差测度的快速简便的算法来简化带属性的网格模型。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。