尺度

This paper presents a multi-scale curvature product corner detection technique in the framework of B-spline curvature scale space.

摘要本文在B样条尺度框架下提出了一种多尺度曲率乘积角点检测算法。

They all require an enormous number of scales to construct the curvature scale space image.

根据这些方法，构建曲率尺度空间所需尺度太大。

The total conclusion from above-mentioned study: scale effects is in factthe effects of structure. Scale effects expression and choosing rule of itsparameters are produced.

上述研究成果得出总的结论：岩体尺度效应实质上是岩体结构效应的外在表现，由此创新地提出了尺度效应的表达式，并给出了其参数确定的一般规律。

Based on the time-frequency analysis (continuous wavelet transform and short time Fourier transform), the arithmetic uses the modulus maximum characteristic on the phase scale and carry frequency scale to recognize phase modulation rule of signal. So without whole wavelet coefficient the signal mathematics model can be obtained quickly. It provides well condition for application of arithmetic in practice.

该算法基于信号的时频分析（小波分析和短时傅里叶变换），利用小波变换的相位尺度和载波尺度的模极大值特征辨识信号的相位调制规律，因而在无需计算全部小波系数的情况下，可快速地获得信号的数学模型，为算法在实际中的应用提供了良好的条件。

On the basis of above-mentioned theory, Lime rock specimens indifferent scale series from Hebei Jingxing is tested under uniaxial compression.Besides, through numerical simulation and test of coal specimens from Datongand Luan scale effects rule is found out. And that, physical and mechanicalcharacteristics of specimens are studied under uniaxial compression.

基于上述理论认识，通过对室内不同尺度系列的井陉石灰岩单轴压缩试验和数值模拟，以及对大同、潞安的有关煤样试验，得出了尺度效应相关规律，并对岩样在单轴压缩过程中相应的物理力学现象进行了分析研究。

The scale and strength of passage vortex is also simulated in the flow filed incascade with straight and positively curved blade by using total 3D N-S solver.The results indicate that the passage vortex which is the main part of thesecondary flow can be limited in small-scale steady shape by using curved blade.

借助于全三维N-S方程的求解程序，对直叶片和弯叶片两种流场中的通道涡的尺度和强度进行了数值模拟，模拟结果表明，采用弯叶片可使对二次流起主要作用的通道涡限定在尺度较小的稳定形式上。

When the positive curving angle increases, the total losses of cascades increase, the outlet flow angles vary acutely along the spanwise, the intensity and size of outlet trailing vortex increase obviously, however the intensity and scale of outlet passage vortex vary slightly, secondary flow at both midspan and endwall increase and the total averaged kinetic energy of secondary flow increases..

随着叶片正弯曲角的增大：叶栅总损失增加；叶栅出口气流角沿叶高剧烈变化；叶栅出口尾缘涡的强度和尺度明显增大，而叶栅出口通道涡的强度和尺度变化都不大；叶栅中部和端部二次流均增强，总平均的二次流动能增大。

Audio denoising is the pre-step in the audio processing,and wavelet domain denoising has been a main research area.In order to give people a summary knowledge of wavelet domain audio denoising,based on many literatures,this paper attempts to make a survey of wavelet domain audio denoising.First,it introduces wavelet transformation and the characteristics,and gives the optimal selecting and dealing criterion of wavelet domain denoising,the basis wavelet selection.Second,describes five classical methods of audio denoising,for example,threshold,multi-wavelet,wavelet packet,modulus maximum and scale correlation,then introduces their development.Third,introduces a new algorithm based on modulus maximum and scale trading theory.At the end,the future trend of wavelet domain audio denoising is pointed out.

音频降噪是音频处理前期的必要步骤，小波域降噪是其中一个重要的研究方向，为了使人们对小波域音频降噪有概括了解，在对小波域音频降噪相关文献进行分析和理解的前提下，首先介绍了小波变换及其特性，同时阐述了小波降噪的最优选取和处理准则，及对音频进行小波变换时小波基的选取原则；然后评述了用于音频降噪的阈值，多小波、小波包、模极大值和尺度相关法等5类方法及各自的发展；接着介绍在前人基础上，提出新的基于模极大值和尺度理论的降噪算法；最后探讨了小波域音频降噪的发展方向。

The term originally implied [6] a new technology that went beyond controlling materials and engineering on the micrometer scale, which had dominated the twentieth century.

远不同于二十世纪微米尺度占主导地位的状况，它预示的是一种能在超越微米尺度下控制材料和工程的新工艺。

Micro-scale effect and multi-field coupling are characteristics of the design of micro-electro-mechanical system. However, the current macroscopic structure-oriented CAD systems have not been able to meet the increasing requirements for the design in micrometer scale. Therefore, a flexible design modeling methodology for MEMS based on Petri net is put forward.

微机电系统设计具有微尺度效应和多物理场耦合的特点，而现有的面向产品宏观结构的CAD系统难以满足微米尺度设计需求，为此提出一种基于Petri网的MEMS柔性设计建模方法。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。