查询词典 gradient

Catechins were separated and detemined by linear gradient elutions for the rate of flow and concentration, with water, methanol, formic acid and dimethyl formamide as mobile phase.

在选定的色谱条件下每种成分在各自的浓度范围内均具有较好的线性关系，样品的回收率为93 65%～98 95%，相对标准差为0 69%～2 26%。

The exact solutions are then obtained for the equations characterizing flows of such fluids under an arbitrary pressure gradient by the method of integral transforms (Fourier Cosine transform and Laplace transform).

运用积分变换方法(Fourier余弦变换和Laplace变换)，求得了在任意压力梯度下流体运动方程的精确解。

The approximations can be used as the initial guess and pre-conditioner in the stabilized biconjugate-gradient fast Fourier transform algorithm for computing integral equations, and hence a hybrid DTA-BCGS algorithm with higher efficiency is formed.

这两种近似可以作为计算积分方程稳定型双共轭梯度快速Fourier变换算法的初始猜测值和预条件因子，从而形成效率更高的混合DTA-BCGS算法。

Gradient regularization method ; Frechet derivative ; regularization parameters ; parameter identification ; ill posedness ; elliptic operator equation

梯度正则化方法； Frechet导数；正则参数；参数识别；不适定；椭圆算子方程

By using the Copson method, one of these equations is transformed into a Fredholm integral equation of the second kind to obtain the solution. Furthermore, the intensity factors, the total energy release rate and the mechanical strain energy release rate are obtained and compared with the classical results without considering the electric field gradient effects.

采用了Copson方法，将其中一组对偶积分方程转化为第二类Fredholm 积分方程来进行数值求解，得到了裂纹尖端的强度因子、总能量释放率和机械应变能释放率，并与经典理论中的结果进行了比较。

This pattern is echoed in a ceramic frit gradient applied to the double pane glass to modulate the natural daylight.

这种模式是呼应了陶瓷熔块梯度适用于双窗格玻璃调节自然光。

Changes in gradient, rotation and spacing break the long spans of continuous frontage into a rich pattern.

梯度变化，轮换和间距打破长期持续临街跨越到了丰富的模式。

The moisture flux in case 2006 was more than case 2005. The frontogenesis process in case 2006 was obvious; it showed that the front system was accompanied with a strong temperature gradient. The mid and low-level frontogenesis process played an important role in the development and maintenance of causing the front convective systems. The jets were formed with the difference of horizontal ageostrophic wind in vertical direction.

由水气收支计算可得到水平水气通量辐合对於对流系统之水气来源扮演正回馈作用，其中2006年个案中水气通量较2005年个案来得大。2006年个案之锋生过程显著，中低层锋生过程扮演导致锋面对流系统之发展与维持重要角色；而低层喷流生成的条件主要来自於横向非地转风垂直分布之喷生作用。

Secondly, a rule of the choice of step-length is presented for a non-quadratic objective function of n variables, according to the rule we prove that the Gradient Method has local n-step quadratic convergence rate for a non-quadratic function under certain conditions.

其次，对于n个变量的非二次目标函数也提出了一个步长选取的准则，并在此准则下证明了当目标函数满足一定的条件时，梯度法具有局部n-步二阶收敛速度。

A study on the structure and property of uneven hot resistant functionally gradient materials was introduced in this paper.

对非均质耐热梯度功能材料的结构与性能进行了研究。

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。