三角点

根据奇异点的性质，利用Poincareindex方法求出核心点和三角点。

An Optimal Poincare Inequality Core and delta are detected by the Poincare Index method .

指纹图像特征提取，利用细节点模板检测算法提取指纹图像的细节特征点和从指纹灰度图像出发利用BP神经网络提取指纹的中心点和三角点（奇异点）。

Feature extraction of fingerprint image . We extract minutiae by the minutiae detection template , and recognize singulars ( center and triangular points ) using back-propagation neural network based on grayscale fingerprint image .

提出了一种分别基于Poincare指数和梯度场零点检测的分级算法来提取奇异点（核心点，三角点）。

On the basis of Poincare Index and zero point-detection of gradient field , a hierarchy algorithm for detecting singular point ( core and delta ) was proposed . It was divided into two stages .

三角形板的三角点处被支承的弯曲问题

Bending Problems of Set Squares with Three Corner Points Supported

但是，绝对定位时必须做到：（1）合理选择校正的控制点（三角点或四角点）；

But must attain : ( 1 ) select the control point reasonablety ;

正三角形三角点的分布

The distribution of triangular points of equated triangle

三角点或四角点支承的矩形板弯曲统一求解方法

United Solution Method on Rectangular Plate Bending with Three Corner Points Resting or Four Corner Points Resting

数据处理工作部分，主要讲述全省三角点成果和水准点成果的数据处理及入库过程。

To data management , this paper mostly discusses data manipulation and input of trig point result and bench mark result .

本文利用限制圆和限制区域，给出了费尔马点为三角点的判断条件，同时得到了特殊的正三角形的三角点的分布情。

By using boundary circle and restricted region , this paper gives a criterion for judging whether Fermat point is a triangular point .

提出一种新的挠度表达式，可以解决三角点支承的矩形板在任意荷载作用下的弯曲。

In this paper , a new deflection expression is put forward , which can solve the rectangular plate bending with three corner points sustained under arbitrary load .

本文第二章和第三章就分别介绍了三、四等三角点成果和山东省水准点成果平差处理的方法和过程。

In chapter two and chapter three of this paper , much adjustment method and process of third-order and forth-order triangulation and bench mark of Shandong province are discussed .

研究基于方向熵的残缺指纹感兴趣区域提取算法。指纹的两类最重要的全局特征是中心点和三角点，它们具有平移不变性、旋转不变性、伸缩不变性。

The method based on orientation entropy is proposed for incomplete fingerprint to extract the Region of Interest ( ROI ) . The global characteristics , core and delta , are invariant to translation , rotation , expansion and reduction of fingerprints .

这种方法简单、准确、经济，解决了水土保持监测中的面积度量问题，克服了由于国家三角点被破坏而受数量与分布的限制的缺点。

This is a simple , accurate and economic method which has solved the issue of area measurement in soil and water conservation monitoring and conquered the deficiency of limitation of quantity and distribution because of the damage of the State trigonometric point .

通过提取出的指纹图像中核心点和三角点的数目和相对位置，我们将指纹图像分成了六种类型：拱型，尖拱型，左环型，右环型，涡型，双环型。

According to the number and relative position of " core points " and " delta points " extracted from the fingerprint image , we classify the fingerprint into the following six classes : arch , tented arch , left loop , right loop , whorl , twin loop .

ph.1.三角测量点低碳醇氧化电极表面pH值的测量及应用

PH Measurement on Oxidation Electrode Surface of Primary Alcohols and Its Application

Lagrange三角平动点邻近的相空间结构

Structures of the phase space near lagrange ′ s triangular equilibrium points

用这些判断条件，讨论了一些阻力对经典限制性三体问题三角平动点线性稳定性的影响，改进了Murray等的一些结果。

By these judging conditions , the effects on the linear stabilities of the triangular libration points in the classic restricted three-body problem with drag are discussed . Some Murray 's results are improved .

本文讨论了在小地区水准点的个数较少的情况下，借助于少量的三角高程点，采用线性及非线性改正的方法，对GPS高程进行改正，以确定GPS点的正常高。

In an area where there are only few benchmarks , by making use of a few trigonometric leveling points on the area and utilizing the method of linear correction or nonlinear correction , we can amend the ellipsoidal height of a GPS point and get its normal height .

用所得到的条件，讨论了任意外力摄动对经典圆型限制性三体问题三角平动点稳定性的影响和惯性阻力摄动对Robe圆型限制性三体问题主要平动点的稳定性的影响。

The effect of an arbitrary external force perturbation upon the stability of equilibrium points in the circular classic restricted three-body problem and the effect of an inertial drag perturbation upon the stabilities of the main equilibrium points in the Robe circular restricted three-body problem are studied by these conditions .

多路定点实时温度测量仪的开发与设计ph.1.三角测量点

The Designing of Instrument About Measuring Real-time Temperature on Multi-point

ph.1.三角测量点三角平动点在深空探测中的应用前景

Applications of the Triangular Libration Points in Deep Space Explorations

所以，在这个三角有点被扭曲了。

So this triangle was a little bit distorted .

ph.1.三角测量点测量冰点和熔点的仪器。

An instrument for measuring freezing and melting points .

半填充三角格点中的金属&绝缘相变

Metal-insulator Transition on a Half Filled Triangular Lattice

探测器定点在日&地+月系三角平动点附近的轨道控制

Station-Keeping of Spacecrafts around the Equilateral Equilibrium Points in the Sun-Earth + Moon System

从三个平面角度析汉语量词特点及其特殊用法ph.1.三角测量点

Analysis of Chinese Measure Words and Their Use in Terms of the Theory of Three Levels

Delaunay三角网增点生长构造法研究

Study of the Point - added Growing Method for Delaunay Triangulation

基于Delaunay三角网井点面积加权法的油气储量计算

Calculation of oil and gas reserves base on well-point area weighting method of Delaunay triangulation

本文从基本的压电Christoffel方程出发导出三角晶系3m点群压电晶体弹性常数的表示式。

Based on the fundamental piezoelectric Christoffel 's equation , we derived the expression of the elastic constants for piezoelectric crystal with trigonal symmetry point group 3 m.

采用膀胱三角区三点封闭法解除术后膀胱痉挛。

The second imrpovement was the relief of post-operative bladder spasm by three-point blocking of trigonum vesicae .