查询词典 gradient method

Methods The hMSC were obtained from bone marrow specimens by gradient centrifugation method.

目的研究人骨髓基质细胞体外培养及向成骨细胞诱导分化的实验方法。

Because of using shielding-grounding resistance gradient logging method, the rate of logging Class A hole has reached 100% in the practical work.

不仅为煤层结构划分增加了一种有效的参数，而且由于解释点为曲线的极值点，划分厚度也更加准确。

Based on the working condition of the tractor, a new type of electric tractor drive system which combines a motor and a gear, and the evaluation index and the calculation method for dynamic performance of electric tractor are suggested; taking an electric tractor drive system as design object, the balance graph of drive-resistance force, climbable gradient under different shifts, and continuous working time are calculation analyzed.

根据电动拖拉机作业特点，提出了一种电动机和变速箱相结合的电动拖拉机传动系统结构方案，并给出了电动拖拉机动力性能和经济性能评价指标以及电驱动系统主要参数的设计计算方法，以基于串励直流电动机的某型号小四轮电动拖拉机电驱动系统为设计实例，计算分析了该电动拖拉机的驱动力-行驶阻力平衡图、不同挡位下的爬坡度以及连续作业时间。

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。

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 this paper the conformal transformation method is used to get the inferential reasoning formulas: seepage pressure formula, seepage discharge formula and seepage gradient formula.

本文采用保角变换的方法，通过建立数学模型推导出在均质且理想边界条件下，土石坝基垂直防渗的渗透压力、渗流量和出逸坡降计算公式。

The parallel algorithm is presented for solving the conjugate gradient method with element based domain decomposition. Model of dam structural analysis problem is solved.

提出了基于单元区域分解的共轭梯度并行算法，对坝体结构进行求解，对其并行性能进行分析。

Theoretic simulations are made and compared with the classical conjugate gradient method. Field data applications are performed. It reveals that the proposed algorithm has the advantages of high precision, robustness, fast calculation and practicability.

通过理论模型试算和实际资料处理，并与共轭梯度法进行对比，表明该算法具有精度高、抗病态能力强，运算速度快的优点，具有实用性。

Our main purpose in this paper is to study new conjugate gradient algorithm and new SQP method.

这篇论文主要是研究新的共轭梯度算法和新的SQP方法。

For this theory, it is better than the traditional fixed damping conjugate gradient method.

从理论上讲，它要优于传统的固定阻尼共轭梯度法。

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。