查询词典 falling gradient

A practical cooling regime was established then, and a network with better performances was obtained by combining simulated annealing algorithm with gradient descent method.

将模拟退火算法与传统的梯度下降法结合，用于人工神经网络的优化与预测，得到了预测效果等与迭代时间性能更好的神经网络。

First, a gradient detecter is used for detecting all localintensity discontinuous points as candidate edge points. Then,all thesecandidate edge points are classified into three kinds of point setsaccording to some classifying rules.

首先，利用梯度检测算子检测出灰度不连续象点作为候选边缘点，其次，按文中提出的若干分类规则，将这些候选点分为三类。

Medthod: Shim-packC18 column was used with a mobile phase of methanol-phosphate buffer 0~3.5min (10:90),3.51~10min (30:70)gradient elution,velocity of flow: 0.8mL·min-1 ;column temperature: 32℃;volume of injection: 20μL; the wavelength of detecter was set at 254nm.

用岛津Shim-packC18分析柱，甲醇：磷酸缓冲液梯度洗脱，0~3.5min(10：90)，3.5min后(30：70)，流速：0.8mL·min-1，检测波长：254nm，柱温：32℃，进样量：20μL。

In the paper we analyze and realize using MATLAB two inversion techniques (the gradient method and the DFP method), and check the two techniques , too.

本文分析并用MATLAB实现了两种反演算法，并对这两种算法进行了验模，以评定算法的准确性。

Based on DFP gradient method and the theory of elastic visco-plasticity and that of finite element method, the deficiency and objection existing in present stochastic back analysis methods have been deeply studied in this paper in order to provide much more reliable parameter for the mechanical analysis of geological engineering structures.

本文基于变尺度梯度优化方法和弹-粘塑性原理及其有限元基本理论，针对随机反分析方法存在的缺陷和不足进行研究，以期为实际岩土工程结构的力学分析提供更加可靠的材料参数。

Through numerical simulation methods, influence of starting pressure gradient on production indexes of fractured producers in diamond shaped well pattern was studied.

应用数值模拟的方法研究了启动压力梯度对菱形井网压裂井日产油量、累积产油量、含水率、采出程度、地层压力等参数的影响。

And then the temperature field and configure deformation of the primary and second mirror on the function of temperature gradient of axial, radial and circle direction. The characteristics of the dichroscope with body absorbing and face radiation are stated and the transient temperature field is analysized. The temperature field and configure deformation in different time is known and the influence on visible and middle infrared light is analysized. The advice to thermal control is put forward and the influence of self-radiation of the dichroscope to the detector is analysized.

接下来分析了主次镜在轴向、径向、周向温度梯度作用下的温度场分布及面型变形，阐述了分色镜的体吸收、面发射的特性并建立了分色镜的模型，对分色镜进行了瞬态温度分析，得到了不同时间内分色镜的温度场分布及面型变形，确定了其对可见光和中波红外光的影响，提出了温控的建议并分析了分色镜的自辐射对探测器的影响。

The prepared plumbic strontium titanate is the ferroconductive film with component gradient, the dielectric constant and saturation polarization of which is improved.

所制备的钛酸锶铅是具有成份梯度的铁电薄膜，其介电常数和饱和极化强度与一般铁电薄膜相比都得到了很大提高。

The detection method introduced in this paper is as follows: using some difference operator, calculating the gradient variation based on the image brightness, so as to detect the edges, the main operators used are Robert, Sobel, Prewitt, LOG, Kirsch, etc.

本文介绍的检测方法是通过一些差分算子，由图像的亮度计算其梯度的变化，从而检测出边缘，主要有Robert、Sobel、Prewitt、LOG、Kirsch等算子。

The method replaces the grads in gradient method with difference quotient and can be used to many cases.

然后根据此界的特点，提出了基于差商的参数优化算法，用差商代替导数的计算，具有较大的适用范围。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。