查询词典 projection gradient method

On the basis of first-hand data, the two periods of stress field since Mesozoic are restored by means of the stereographic projection method,on the other hand,the present stress field is studied by means of the focal mechanisms solution.

根据实测数据，利用赤平投影方法确定研究区地质时期两期应力场，通过震源机制解得到现代应力场。

Subgradient projection method with variable diameter for optimization;2. The variable diameter deephole blasting was adopted to solve problems of open-pit high bench mining.

采用变直径深孔爆破工艺可较好地解决露天矿高台阶开采的爆破根底问题，对等直径和变直径 2种深孔形式爆破后岩体移动速度情况采用高速摄影手段进行了分析和研究，为在高台阶开采的矿山推广变直径深孔爆破提供一些有益的参考依据。

objective: to evaluate the clinical application of helical ct for the location or treatment of maxilla embedded tooth in the dental orthopaedics.method: 18 cases with embedded tooth of maxilla were made with clinical examination, dentomaxillary pantomography, submaxilla lateral projection and helical ct.the operation be done for supernumerary tooth,distorted teeth,inverted tooth.three embedded tooth of non-inverted tooth were done by orthopaedics.result: among the 18 embedded tooth ,there were 11 palatally and 6 labially presented teeth,1 the 18 patients is mediately with completely inverted supernumerary tooth.all preoperative assessment are one and all in operative or orthopaedics and primary wound healing.

四川大学华西口腔医学院正畸科，四川成都 610041摘要：目的：正畸治疗中对上颌埋伏牙如何定性，定位，并要对此是采取手术拔除［1］或者是正畸治疗进行探讨。方法：对18例（其中1例为2颗多生牙，1颗多生牙已长出，另一颗为完全倒置的多生牙），上颌前部埋伏牙采用临床检查以及拍摄全景片、头侧位片螺旋ct轴位和表面成像等检查［2～4］对埋伏的多生牙、畸形牙和倒置牙共15例采用了相应的手术进路拔除，对形态正常且不倒置的3颗埋伏牙采用了正畸治疗。

A new method of locating a center-point of the circular projection was proposed based on the vector sum and image template convolving a mask over the gray-scale image directly and using the frequency domain computation is to reduce the time complexity.

提出了基于矢量和的全局最优的圆心定位方法，并利用卷乘和频域方法实现定位的快速算法。

Under mild conditions,a new feasible descent algorithm is presented and its global and superlinear convergence are proved by using the technique of combining generalized projection method with sequential systems of linear equations.

在较温和的条件下，采用广义投影和序列线性方程组相结合的技术，建立一个新的可行下降算法，证明了算法的全局收敛性和超线性收敛性。

By using the projection method, we prove the existence and uniqueness of solutions for this new system of generalized variational inequalities.

在本文中，我们首先引入了一类新的关于松弛协强制映射的广义变分不等式组，通过用度量投影的方法，我们证明了这类广义变分不等式组解的存在性和唯一性。

Compared with the widely used projection lens coma measurement method TAMIS, the accuracy of coma measurement is increased by 20%.

标 签 光学测量光刻机彗差套刻误差投影物镜 optical measurement lithographic tool coma overlay error projection lens

This method is based on tensor and tensor algebra. To utilize the multidimensional data of the remote sensing image, the vector-based learning machine is generalized to the tensor-based learning machine which accepts tensors as input, then the convex optimization theory and the alternating projection procedure are used to get the solution of the TLM.

该方法基于张量数据模型和张量代数运算，针对遥感影像数据多维或高维的特点，将基于向量的监督法学习机扩展为基于张量的监督法学习机，然后利用凸函数最优化理论和交互投影迭代法求得张量学习机的最优解。

Aimming at the shortcoming in precision measurement of artillery adjusting, a kind of three-ply intersection measurement method based binocular stereo vision is proposed. CCD is used to capture images of the sign object attached on gun barrel, and three-dimensional coordinates is calculated by geometrical projection relation of the sign object image.

针对火炮调炮精度检测中存在的不足，提出了一种基于双目立体视觉的三重交会测量方法，在炮身管上附加球状标志物，利用CCD摄像机获取标志物图像，通过标志物成像的几何投影关系计算球心的三维坐标。

With regard to the fuzzy multi attribute decision making problems, in which the information about attribute weights are unknown completely and the attribute values are in the form triangular fuzzy numbers, a method based on the linear programming model and projection of fuzzy numbers vectors is proposed.

针对属性权重完全未知且属性值为三角模糊数的模糊多属性决策问题，提出了一种基于线性规划和模糊向量投影的决策方法。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。