种脊

基因测序现已确定这些病例由一种脊灰病毒引起，该病毒与目前邻国安哥拉流行的病毒密切相关。

Genetic sequencing has determined that the cases are caused by a poliovirus most closely related to that circulating in neighbouring Angola .

从该构造图上识别出油气向西部斜坡带运移的4种脊状构造，即鞍状构造-岩性脊、断层-岩性脊、背斜-岩性脊和纯岩性脊。

Four kinds of ridge like structures , saddle structural lithological ridge , fault lithological ridge , anticlinal lithological ridge and lithological ridge , can be identified from the structural map .

基于传输线理论和波导裂缝有源阻抗提取方法，提出了一种脊波导漏壁式滤波器的简化算法。

Based on transmission line theory and extraction method of active impedance of waveguide slot , a simplified computation method for the leaky-wall ridge waveguide filter is presented in this paper .

本文将有限元法引入到双脊、单脊和不对称脊波导特征值的分析中，求解出了三种脊波导的特征值，并给出了截止频率和主模带宽曲线。

Finite element method ( FEM ) is introduced to analyze and compute the eigenvalues of double ridged waveguide , single ridged waveguide and unsymmetry ridged waveguide . Eigenvalue solutions of three ridged waveguides are solved and the useful curves on cutoff frequency and bandwith are provided .

编程计算了双脊、单脊和不对称脊波导的特征值，求解了三种脊位于窄边的脊波导的传输特性，并给出了截止波长和单模带宽曲线以及场结构变化。

The text computes the eigenvalue of double ridged waveguide , single ridged waveguide and unsymmetry ridged waveguide , transmission of three kinds of ridged waveguides with ridge on the narrow wall are solved for and the useful curves on cutoff wavelength , bandwidth and field pattern are presented .

好，我的诚实的鱼叉手，如果一种脊推动物，身长好几百米，身宽按照身长的比例，它住在这样的海底深处，那么，它们有数百万平方厘米面积的身躯，所受到的压力，就要以千百亿公斤来计算了。

Ned put in . All right then , my fine harpooner , if vertebrates several hundred meters long and proportionate in bulk live at such depths , their surface areas make up millions of square centimeters , and the pressure they undergo must be assessed in billions of kilograms .

在研究人类视觉（HVS）特性的基础上提出了一种在脊波变换域基于图像内容的数字水印模型。

In this paper , an image content based perceptual watermarking model using ridgelet transform is presented .

提出了一种基于脊线跟踪的指纹细节特征提取方法。

This paper presents a method of minutia detection based on tracing fingerprint ridges .

我们已经根除了三种野生脊灰病毒菌株之一。

We have already eradicated one of the three strains of wild polio virus .

一种基于脊波和数字加密的脆弱数字水印算法

Fragile Digital Watermarking Algorithm Based on a Ridge of the Wave and Digital Encryption

一种自适应脊波网络模型

An adaptive ridgelet neural network model

论文以复杂结构脊波导为主要研究对象，首次提出了三角形和倒梯形两种新型脊波导。

Two novel ridged waveguides with triangular ridges and inverted-trapezoidal ridges were first proposed in this thesis .

针对纸币号码识别过程中图像分割存在的问题，提出了一种逻辑脊谷判断的图像分割方法。

In order to recognize numbers on paper currency , an image segmentation algorithm is presented based on logic spine judgment .

本文提出了一种基于脊向指纹滤波预处理方法。

In the paper , a new algorithm of fingerprint images based on the filtering of the ridge direction is introduced .

在方向图和脊线频率的基础上，实现了一种基于脊线方向分析的方法对指纹图象进行二值化；

We also improve on the binarization method of fingerprint images based on the2nd derivative by the orientation and ridge frequency of the images .

一种基于小波脊线拟合的MFSK信号识别方法

Identification of MFSK Signals Based on Approximate Wavelet Ridge

提出了一种基于图像脊提取和snake模型的复合式方法来实现X射线造影图像序列中冠状动脉血管的二维提取和运动跟踪，并分别对临床采集图像序列和模拟图像进行了实验。

A composite method based on image ridge detection and active contour model ( snakes ) for extracting and tracking dynamic coronary arterial vessels from X-ray angiographic sequences is presented . The performance and effectiveness are demonstrated on clinical coronary angiogram sequences and simulated data .

结果3D-STIR序列及其增强扫描可清楚、明确的显示脊神经外伤、肿瘤、椎间盘突出三种病变累及脊神经所致的各种征象。

Results Plain and enhanced 3D-STIR sequence could clearly depicted neoplasm , trauma , intervertebral disk herniation involving the spinal nerves .

同时设计了两种搜索岭脊的方法。

At the same time , two searching ridges methods were given .

通过分析现有的一些方法，提出了一种基于自适应脊波变换的边缘检测方法。

Abstract A method for edge detection based on adaptive ridgelet transform was proposed .

设计了一种采用单脊波导作为微波电路的新型行波光调制器。

A new travelling light modulator using single ridged waveguide as microwave circuit is designed .

一种改进的脊线提取方法

An Improved Method of Ridge Line Extraction

一种提取小波脊线的迭代算法

An iterative algorithm of extracting wavelet-ridge-curve

最近提出了一种新的脊波算法，即伪极快速傅立叶变换。

Recently , Donoho and others proposed a new Ridgelet transform algorithm , known as Pseudo-Polar FFT .

主要创新成果如下：（1）提出一种基于有限脊波变换与傅里叶变换结合的图像哈希算法。

The main innovations are as follows : ( 1 ) An image hashing based on finite ridgelet transform and fourier transform is proposed .

最后，将脊波变换的思想应用于图像融合，采用区域方差的融合规则，得到了一种基于有限脊波变换的图像融合算法。

Thirdly , Ridgelet transform is applied in image fusion , adopted the fusion rule of regional variance , an image fusion algorithm based on finite Ridgelet transform has appeared .

一种低损耗SiGe脊形光波导的结构和设计

Structure and Design of New Low Loss SiGe Optical Waveguide

根据1D相位相关技术，提出了一种通过搜索角度脊来得到旋转参数的方法；

Based on 1D phase correlation , a method was proposed to obtain the angle of rotation by searching an angle ridge .

本文提出一种新的指纹脊线提取方法。

This paper describes a new method of extracting ridges in fingerprint images .

一种分析三维楔脊形光波导与光纤耦合的方法

A method for analyzing the coupling of 3-D tapered rib waveguides with Fibers