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    DISTRIBUTION AND MEASUREMENT OF OUTLET ENERGY OF AN AXIAL FLOW PUMP
    轴流泵出口能量分布特性与测定
    According to wavelet coefficients energy distribution in different subbands,different thresholds are obtained in different subbands to improve reconstructed image quality significantly.
    将该阈值方法和多小波变换相结合,根据多小波分解后的能量分布特性,在不同尺度的子带选择不同的最佳阈值,有效地提高了重构图像质量。
    A New De-Noising Algorithm of Wavelet Based on Characteristic of Energy Distribution
    一种基于能量分布特性的小波去噪算法
    By analyzing mathematical characteristics of wavelet base,several criteria are presented which include entropy, coding gain, product ofpeak-to-peak ratio (PPR) and coding gain, PSNR of the reconstructed image, energycollection characteristic and energy distribution characteristic.
    通过分析小波基函数的数学特性,该方法提出用六个指标全面评估小波基的压缩性能。 这六个指标包括:熵H、编码增益G、峰—峰比PPR和增益的乘积PPR×G、最低频子带重构图像的峰值信噪比PSNR、能量集中特性,以及能量分布特性
    According to the energy distribution defference between target and background in wavelet field, the target feature is extracted by calculating the energy feature values of every subchannels obtained from multiscale decomposing.
    根据目标与环境背景在图像小波变换域能量分布特性的不同而对小波分解得到的各变换域通道能量特征值进行计算,并以此为依据提取出目标。
    CHARACTER OF RETROREFLECTOR'S LIGHT FIELD'S ENERGY DISTRIBUTION AND ITS MEASURING TECHNOLOGY
    逆向反射镜光场能量分布特性及其测试技术(英文)
    Absorption property of laser rod circle-side-pumped by LD
    LD环形侧面抽运晶体吸收能量分布特性研究
    One the other hand, the complexity information entropy is expanded to two-dimensional signal space to construct the information entropyindexes for the relating analysis of multiple variables, which called joint complexity information entropy and information transfer feature index to describe the joint energy distribution character and its variety characteristic.
    另一方面,将复杂度信息熵扩展到二维信号空间,构建了多变量关联分析的信息熵测度指标——联合复杂度信息熵和信息传递特征指数计算模型,用于描述信号之间的联合能量分布特性及其变化规律。
    The way of spectrum analysis study characteristic of spectrum structure and energy distribution of wave forces, moreover usuallylink with way of probability analysis, in order to confirm wave forces under different wave forces spectrum and different accumulative frequency .
    谱分析法是研究波浪力的频率构成和能量分布特性,并且常与概率分析法结合起来,以确定不同波力谱下不同累积率的波浪力。
    2. According to the characteristics of laser,the experimentations had two steps: the laser and surface irradiated are paralleled and upright.
    2.根据激光的能量分布特性,分别采用被照射表面与光斑平行和垂直两种方式进行SiC纳米颗粒激光照射试验。
    Study the spread characteristic of the ray in the fiber.
    研究了光在光纤中的传播特性,渐逝场的能量分布特性;
    we can obtain the frequency amplitude spectrum property and energy distribution property of air velocity in frequency domain,the correlation property on time and space,the rule of eddy,etc.
    用它可以求得气流速度任频域内的频幅谱特性、能量分布特性、以及时间与空间上的相关特性和涡旋尺度等。
    C. ,this article puts forth a computation method for the typhoon wind wave in shallow water regions which are affected by the coast and islands (including the bay region). Several factors were taken into consideration in the computation method, including the general characteristics of the typhoon wave, the equivalent water depth, wave refraction in shallow water region,the energy distribution characteristics of the irregular wave,and the length of the energy-effective wind belt in the regions affected by coast and islands, etc.
    在我国港口工程技术规范的波浪成长理论基础上,考虑到台风波浪的基本特点、等效水深的概念、浅水区波浪的折射、不规则波的能量分布特性、受陆岸和岛屿影响角度范围内的有效能量风区长度等因素,提出了受陆岸、岛屿影响浅水区(包括海湾区)台风风浪的计算方案。
    The change of the X ray exposure with increasing the X ray energy and the measurement of multichromatic (white) X ray exposures were also discussed, respectively.
    讨论了软X射线照射量随能量的分布特性及混合能量X射线(白光)的照射量测量方法。
    Obtained are the scale wavelet power spectrum and time wavelet power spectrum of signal.
    同时 ,利用信号经连续Morlet小波变换后在时间 尺度域内的不同能量分布特性 ,依据信号的尺度 小波能量谱分布特性 ,对螺杆泵减速器和滚动轴承这两类不同机械的信号进行了特征提取 .
    This noise is conspicuous in single_look SAR images which disturb image interpretation and target classification. Therefore,to extent the use of SAR images,effective speckle reduction techniques are highly desirable. Based on the principle of multiresolution wavelet analysis,a new filter for suppression speckle in SAR is proposed.
    利用多分辨率小波分析的理论 ,分析了SAR图像经多分辨率小波分解后生成的系列子图像中信号与斑点噪声能量分布特性及其信噪比的变化规律 ,提出了一种新的小波域斑点噪声的滤波算法 ,该滤波算法的阈值取决于各细节子图像的序列长度、方差及其所在的层次 ,并采用真实SAR数据和模拟加噪图像进行了试验。
    Based on the concentration correlation, the study deduced expression of critical aggregation concentration, determined energy distribution of active molecules inside bulk phase at superheat and supercooling limit state, used molecule aggregation theory to describe gas-liquid phase transition process.
    在聚集体浓度与聚集体内部分子数之间关系分析的基础上,推导出临界聚集浓度的表达式,从而确定体相处于过热(过冷)极限点时的内部分子能量分布特性,借以从分子聚集的角度来描述气液相变的物理图景。
    The output energy distribution of straight and bending GeO 2 hollow waveguide are given too.
    最后给出了GeO2 介质膜空芯光纤在其处于直线和弯曲状态下的输出能量分布特性
    Firstly,noised image are decomposed by multiwavelet transform,Secondly,in high frequency area with different scale,the coefficients are dealed with different threshold according to coefficients energy distribution.
    此方法首先对一幅噪声图像进行多小波分解; 接着根据多小波分解后的能量分布特性,在不同尺度的高频子带内,对小波系数进行不同阀值处理;
    High,frequency PWM(Pulse Width Modulation) technique reduces the input harmonic cur,rent of single,phase AC-DC rectifier and enhances the power factor,but simultaneously raises the discrete energy distribution of harmonic spectrum at switching frequency and its multiple frequen,cies.
    高频脉宽调制(PWM)整流技术能够减少单相AC-DC整流装置输入端的谐波电流、提高功率因数,但引起了集中在开关频率及其倍频谐波频谱的离散能量分布特性
 

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