查询词典 gradient

Application of complex conjugate gradient method and fast Fourier transform to study multitudinous scattering in near-field optics.

利用共轭梯度法与快速傅立叶变换相结合的方法来研究近场多体散射问题。

For the separation of the complex system of alcohol fraction of Fructus schisandrae chinensis, complex sample analysis system software was utilized to optimize the high performance liquid chromatographic conditions. The HPLC retention parameters a and c, and the peak shape parameters σ and W1/2 were obtained accurately and rapidly by analyzing 4 linear gradient elutions.

针对五味子乙醇提取物的复杂体系，借助于复杂样品分析系统软件，根据组分在4次简单线性梯度下42个峰的保留时间，快速准确地计算出各组分的液相色谱保留参数a，c值和峰形参数σ，W1/2。

A new approach to computing an element of Clarke generalized gradient for this class of functions at a point, is proposed.

高岩对于一类非光滑函数一光滑函数的有限次极大值复合函数，给出了计算它在一点处Clarke广义梯度中一个元素的新方法。

For example, 13 means concatenation of first-order gradient and norm luminance as feature vector.

比如：13意味着第一顺序梯度和常规亮度在特征向量上的组合。

In this paper,hydraulics principle and empirical formula are used in hydraulic calculation of flow in different forms of side ditches and water drainage capability of open water outlet in continuous gradient and concave vertical curve bottom.

利用水力学原理和经验公式，对不同形式的边沟流量和开口式排水口在连续坡度上及凹形竖曲线底部的排水能力进行了水力计算，并采用修正法计算了不同形式的边沟水流量。

In high speed drawing process,the pressure gradient of coating in die determines the magnitude of centering force and the concentricity of coating layers.

高速拉丝过程中，模具中涂料的压力梯度决定了对中作用力和光纤涂层同心度的大小。

On the other hand, an iterative hard shrinkage algorithm is obtained by using the generalized conditional gradient method, as well as convergent theorems for Solutions and stopping criterion.

此外，利用广义条件梯度法得到了迭代硬阈值算法，并给出了解的收敛性定理和停止准则。

In terms of the synoptic environment and precipitation characteristics, there were some common characteristics in these two cases. For instance, warm and moist air with the conditional instability atmosphere in the lower troposphere, it was associated with the highest equivalent potential temperature gradient and strong moisture contrast to below 700 hPa. The lower-level convergence was the major produced mechanism of MCS and the low-level southwesterly flow generated convective instability.

从综观环境条件与降水特徵显示，两个案共通特徵包括（1）低对流层属暖湿条件性不稳定大气，（2）最大相当位温梯度以及水气梯度分布於700 hPa以下，（3）低层辐合均为个案中MCS之重要激发机制，（4）有明显低层西南喷流，大气呈现对流性不稳定状态，（5）中层短波槽线的移入，以及（6）高层辐散分流场的存在，提供MCS发展的有利环境条件。

The temperature of surface concrete varies with environmental temperature, but the conductibility of inner concrete is very poor. As a result, a quick decrease of environmental temperature will lead to large temperature gradient and then tensile stressdevelop soon in the thick direction, which will probably occur on the entire cross-section.

混凝土表面温度随外界温度波动而波动，但内部的导温性能很差，所以在外界温度骤降时将引起很大的温度梯度，从而在厚度方向上拉应力发展很快，这极易引起全断面拉应力发生。

For this challenge, to buy their own game full of confidence, he said: I have the greatest record of the gradient is 28 , I would like to challenge 39 , it is a limit.

对于这次挑战，赛买提对自己充满了信心，他说：目前我的最大坡度纪录是28 ，我要挑战39 ，这是一个极限。

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。