查询词典 gradient method

Gravity anomaly of sea surface, vertical gradient of gravity anomaly, downward continuation, cylinder method, geometry method

地表重力异常及其梯度本质上都是位的派生物，重力异常是其径向的一阶导数，垂直梯度是其二阶导数，它对接近地表的扰动物质更为敏感。

First an advanced snake model based on the gradient vector field was used to segment the contour of the left ventricular and an initial snake line of the contour was got, then optical flow method was used to track the contour of the LV in the successive images. Finally, the Simpson method was applied to calculate the volume of the LV.

首先采用基于梯度向量流的主动轮廓模型对左心室内膜进行分割获取初始轮廓线，再采用光流法跟踪得到心脏序列中后续帧图像的心腔内膜轮廓线，最后采用Simpson方法计算得到左心室容积。

Basing on ice formation rate of AgI at different temperatures after "37" anti-aircraft shell exploding, multiple relationship of two gradient temperature, as well as exploding time, angle, vertical height, contour interval and slanting distance of anti-aircraft artillery 83 rainfall bomb, the ideal dissemination radios and launch angle of ideal density were calculated, and the suitable bullet number and operating method were analyzed, for the purpose of using reasonable method of firing and the least person rain ball to achieve best precipitation enhancement effect.

利用&三七&高炮炮弹爆炸后AgI在不同温度下的成冰率及前后2个温度梯度倍数关系，以及高炮83型增雨弹引信自炸时间和射角及其所达垂直高度、水平距离、斜距等资料，计算出理想浓度的理想弥散半径和发射角度，从而分析得出在人工增雨作业中适宜的用弹量和作业方法，以期利用合理的射击方法，使用最少的人雨弹，达到最佳的增雨效果。

Fermat's principle ; ray tracing ; spline function ; gradient method ; target method

费马原理；射线追踪；样条函数；梯度法；打靶法

Meanwhile, based on the MYT orthogonal decomposition, a new method identifying the direction of abnormality of multidimensional abnormal observations is brought forward. This method is robust and appropriate to inverse matrix method, adjoint matrix method and Gram-Schmidt method of MTS.

同时，提出了基于MYT正交分解法的多元系统马氏田口异常值异常方向确定方法，该方法具有很强的稳健性，适用于马氏田口的逆矩阵法、伴随矩阵法和施密特正交化法。

Derive recursive least squares method, recursive general least squares method, recursive augmented matrix method, recursive multiple-stage least squares method and recursive maximum likelihood method based on recursive Householder transformation by applying the three real-time solutions of overdetermined linear equation to difference model.

将线性矛盾方程组的三种实时解法应用于差分模型，导出了基于Househol-der变换的递推最小二乘法、递推广义最小二乘法、递推增广矩阵法、递推多级最小二乘法和递推极大似然法。

With regard to method of rural cadastral survey, from the point of view of technique, outlay, time and the exiting data of Beijing, four methods are mentioned: RTK GPS method, graphic method using landuse data, graphic method using SPOT 5, graphic method using avigation image.

在农村地籍调查方法方面，从技术、经费、时间和与北京市现有数据考虑，提出四种农村地籍调查技术方法：RTK GPS测量法、土地利用现状图图解法、SPOT 5遥感影像图解法和航空影像图解法。

At first it introduces the characteristics,method of designing the program,and method of editing the program of Mitsubishi FX2N.The method of designing and editing the program include the Experience Designing Method ,Sequencely Controlling Designing Method,and STL.Then,it concretely analyses and introduces the electrical construct,electrical feature,and program of the control systems of chemical fiber baler.

首先介绍了三菱FX2N的特性特点、程序设计方法和编程方法，程序设计方法和编程方法包括经验设计法、顺序控制设计法和STL步进梯形指令，然后详细具体地分析和介绍了化纤打包机控制系统的组成、电气特征和程序。

The works in the project just done can be summarized as five respects.(1) A device was designed to fabricate the asymmetrical resonant cavities by a pendant drop. A series ARCs with variable parameters provides a valuable experimental method for investigating the characteristics of ARCs.(2) The relationship between the number of active modes and the shape parameters in an ARC was investigated. The experimental lasing threshold was compared with theoretical result, the good agreement between two shown that it was the decrease of the number of active modes in an ARC that decreased lasing threshold.(3) Dye lasing gain was used to enhance the signals of stimulated Raman scattering of the weak gain Raman modes in a circular cavity made by a pendant drop, the instantaneous SRS spectra of weak gain Raman modes in ethanol was obtained by this new method.(4) The SRS signals of minority compound in a binary chemical complex was obtained by using dye lasing gain method. The detection concentration of minority compound was reduced to an order compared with normal SRS method.(5) A cylindrical circular cavity was formed by a liquid jet, which was used to reduce the pump intensity required for laser induced plasma spectroscopy. The limit of detection of trace element in aqueous sample was greatly decreased by this new method.

我们设计并成功制作了使悬垂液滴连续变形的装置，用此装置可以方便地改变非圆对称谐振腔的几何参数，为ARCs的研究提供了一种有效的实验方法；研究了ARCs中活性模式数和变形参数间的变化规律，激光阈值的数值计算结果和激光辐射的实验结果作了比较，二者吻合的曲线说明ARCs中活性模式数量的减少是受激辐射放大阈值降低的原因；在由单元化合物构成的微型圆对称谐振腔中，首次尝试用"激光增益"增强弱增益拉曼模式的受激拉曼散射信号，获得了乙醇分子中弱增益拉曼模式的瞬态SRS光谱；在由二元混合物构成的微型圆对称谐振腔中，用染料的激光增益增强了少量化合物的SRS信号，把少量化合物的SRS信号探测浓度降低了近一个数量级，在SRS应用于瞬态过程的组份分析方面做了卓有成效的探索；用石英毛细管形成的稳定液拄构成拄形谐振腔，降低了激光诱导等离子体光谱需要的激励能量，有效地降低了水相样品的痕量元素分析极限，为LIPS应用于微量元素的化学分析开拓了一条新的技术路线。

The method that this book introduces is the simplest method, and the most comprehensive method. This is the method of no methods. This is the method of enlightenment and buddhahood.

此书所介绍的方法，是最简单的方法，是解决所有的问题的方法，是总方法，就是没有方法的方法，就是成佛之法。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。