梯度

Preconditioned con- jugate gradient algorithm is a fast and accurate computational algorithm.

预条件共轭法是一种精确并且收敛迅速的计算方法。

Klinotaxis refers to movement through a gradient while taking successive samples of the environment.

Klinotaxis是指通过一个转移的同时连续样品环境。

With the invention of high-temperature-superconductor, the superconductive magnetic gradiometer be-comes available in application.

由于高温超导体的研究成功，使得超导磁仪的实际应用成为现实。

Synthetic peptide purification. Are isocratic elution and volume overload options to improve process economics?

合成蛋白提纯-无洗脱和容量超负荷的取舍能提高工艺经济性？

Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer.

摘要重力为重力位的二阶导，可以通过星载仪进行观测。

The functionally graded layers are inhomogeneous along the thickness direction, while the piezoelectric layer is homogeneous;both possess material orthotropy.

假设上下功能层的材沿厚连续变化，而压电层则是均匀材，并且它们都是正交各向异性的。

Style details : This has a grey base background color.It comes with a bevel and a softish background shadow.

这一个灰色在这样式与一点塑二面对切的作用。

Submarine temperature, pressure, gas compositions, geothermal gradient and syngenetic water salinity control the depth of hydrate zone basement.Autochthonous bacteriogenic mod...

海底温和压力、地热、气体成分、同生水控制着水合物稳定带基底的深和厚。

This study describes the application of the feedback linearization neural networks, known from neural network computing, to the problem of gradient preemphasis.

本研究应用线性迴归类神经网路于磁场的系统调整，这种方法不需要重覆量测与调整，因此所需时间非常短。

The observed clinal variation in the frequency of serotinous cones may be described as a fairly regular decrease in all directions .

所观察到的晚熟球果的频率变异可描述如下：向四周相当有规律地渐次减少。

It was obvious that soil salt accumulated in deep soil of farmland and soil salt accumulated in surface horizon of uncropped soil.

荒漠绿洲边缘区的演变以环境变化为主要驱动力。

The trackability limitation of current gradient algorithm is discussed.A new algorithm, named variable parameter gradient estimation algorithm with local polynomial approximation is proposed.

本文分析了辨识算法跟踪时变系统的缺点，提出了一种新的基于局部多项式逼近的变估计算法。

The basic principles of the triboelectricity beneficiation and high gradient magnetic separation technology,as well as its current status of development and usage,were presented.

实验研究了采用高电磁技术处理热轧废水时,在不同工况下使用的效果、影响因素。

Peak concentrations and gradients for gentamicin aried considerably between animals, likely resulting from ariations in round window membrane permeability and rates of perilymph flow.

庆大霉素的峰值浓和浓在动物之间的差异相当的大，这可能是由圆窗膜通透性的不同和外淋巴液流动率的不同所导致的。

Image reconstruction is often converted to the nonrestraint extremum of the nonlinear equations.We have deduced a conjugate gradient algorithm from the extremum of norm.

图像重建常常被转化为解非线性无约束极值问题,通过范极小化推导出共轭法的一般算法。

Our approach is based on a gradient domain technique that preserves important local perceptual cues while avoiding traditional problems such as aliasing, ghosting and haloing.

我们的方法是一种基于域方法的技术，保存了重要的局部视觉暗示并避免了传统的混淆现象，如鬼影和光晕的问题。

By using active set strategy, the authors need only to solve a reduced trust region subproblem which is solved inexactly by the truncated conjugate gradient method.

作者利用有效集策略，在每次迭代中只需求解一个低维的信赖域子问题，该信赖域子问题是通过截断共轭法来近似求解的。

This point out that in order to improve the LMS algorithm performance, the gradient are optimally estimated, or the error signal are nonlinearity processed,these methods are equipollent.

对最速下降法的优化估值和对误差信号非线性处理，是改善LMS算法性能的同措施。

In the CGSM, shear modulus and damping ratio of the soil are functions of depth and shear strain, wave equation for the transmission of shear wave is obtained.

在连续土介质模型中，剪切模量和阻尼比是位置深和剪应变的函，导出剪切波在土体中传播的波动方程。

While blending factors are gained using the energy function that contains image gradient,which conquers the blur and mackle problems in the overlap area if using the tradition linear weight function.

最后对于传统图像融合处理中采用线性加权函通常引起的最终拼合图像重叠区域模糊问题,构造了包含图像的能量函,用于计算重叠区域的全局最优融合因子。