矩心

动量矩定理中矩心的选择

The Choice of the Centre of Moment of Momentum in the Theorem of Moment of Momentum

在哈佛全球CMT目录中，震源深度与矩心深度的分布呈现出明显的规律性，从统计上说，浅源地震的震源深度大于矩心深度，而中深源地震不具有这样的特征。

Analysis of the Harvard global CMT catalogue reveals a significant regularity of the distribution of hypocenter and centroid depths . Statistically , for shallow earthquakes , the hypocenter depth seems systematically greater than centroid depth , while for deep and intermediate depth earthquakes there is no such a characteristic .

同时结合短波差分跳频系统的FFT解调，提出了一种基于干扰矩心频率ICF（InterferenceCentroidFrequency）的无源探测实时选频方案。

Due to FFT demodulation of DFH communication system , an HF passive RTFS solution based on signal energy and ICF ( Interference Centroid Frequency ) is presented in detailed .

对NEIC宽频带地震辐射能量目录和哈佛矩心矩张量（CMT）目录的比较，给出关于视应力的一些可能是有意义的结果。

Comparison between the NEIC broadband radiated energy catalogue and the Harvard CMT catalogue provides information about apparent stress .

震源深度与矩心深度的分布特征及其与震源机制类型之间的关系

Distribution of Hypocenter and Centroid Depths and Its Focal Mechanism Dependence

由于采用了内插细分的矩心算法，XG-1CCD星跟踪器达到了亚象元精度。

Due to centroiding algorithm is adopted the subpixel accuracy is obtained .

质点系相对动矩心的动量矩定理

Angular Momentum Theorem of the Particle System to the Moving Moment Center

动矩心的动量矩定理及其应用

Angular momentum law with moving momental center and its application

作平面运动的刚体的矩心瞬时圆

Instantaneous Circle of Moment & Center of a Rigid Body in Plane Motion

机床颤振预兆早期诊断的频率矩心判别法

Frequency Domain Centroid Criterion for Diagnosis of Machine Tool Chattering in Its Early Stage

矩心无漂移法测量~（207）Pb569.7keV能级寿命

A walk-free centroid method for lifetime measurement of ~ ( 207 ) Pb 569.7 keV state

利用矩心跟踪法跟踪、警戒强对流天气方法初探

A preliminary study of tracking and warning severe storms by the method of tracking echo centroids

小波变换与矩心

Wavelet transform and moment center

任意动点为矩心的主矩方程配电系统中性点接地方式的分析

The main moment equation using any moving point as moment center analysis on neutral grounding of distribution system

本文定义了作平面运动的刚体的矩心瞬时圆，同时还给出了一个与之有关的定理。

The instantaneous circle of moment & center of a rigid body in plane motion is defined by this paper .

针对星点光斑特性，分析研究了两种内插细分算法，根据算法特性对比，认为矩心算法比较适于星点质心计算。

Two kinds of interpolation algorithms are analyzed and concluded that the centroiding algorithm is better for star spot position estimation .

本工作采用三参数数据获取和离线分析，对延迟谱数据处理作了改进，发展了特殊类型的矩心漂移法。

An improvement have been made in acquiring data of delayed coincidence spectra with ND-620 data acquisition system and off-line data analysis program .

用矩心跟踪法匹配相邻两时刻的风暴，对风暴的合并与分裂进行了处理；

The centroid tracking technique is employed to match the storms at one time with those at the following , and mergence and division have been taken into account .

运用1976～2000年哈佛大学矩心矩张量目录，采用地震对概念对地震静态应力触发模型进行检验。

Seismic static stress triggering model are tested using Harvard centroid moment tensor ( CMT ) solution catalogue of 1976 ~ 2000 and concept of ″ earthquake doublet ″ .

认为采用哈佛大学矩心矩张量目录的震源机制解、矩心深度和新疆震中定位结果较合理，由此得到的7次中强余震均发生在库仑破裂应力增加的区域。

It is reasonable to employ the focal mechanism solution and depth in Harvard CMT catalogue and Xinjiang results of the location epicenter , and 7 mid-strong aftershocks occured all in the increasing region of coulomb fracture stress , which passes signal test .

由牛顿定律直接导出此定理，并给出此定理用于刚体平面运动的各种动力学方程：矩心为定轴、质心、加速度瞬心、特殊速度瞬心、以及任意动点。

This theorem is deduced directly from Newton Laws and can be applied to various kinds of kinetic equations used in plane motion of rigid body : moment about fixed axis , center of mass , instantaneous acceleration center , some particular instantaneous velocity center and arbitrary moving point .

平面运动刚体动量矩定理矩心的选择

Choosing the Moment Center of Angular Momentum in the Rigid Body with planar Motion

主矩方程可称为以任意动点为矩心的动量矩定理。

And the main moment equation is the theorem of moment of momentum , using any moving point as moment center .

动量矩定理应用于刚体平面运动时关于矩心选择问题

On the Selection of the Center of Moment in Applying the Theorems of Moment of Momentum to Rigid Body Plane Motion

不同测定结果的地震矩一般不超过1倍，对应的震级差约为0.2；中国地震矩张量的测定结果与哈佛矩心矩张量测定结果滑动矢量之间的夹角集中在0°～10°。

Seismic moment difference cannot be greater than 1 fold , corresponding to magnitude difference about 0 2.Slip vectors determining from seismic moment tensor solution of China seismologists and Harvard CMT solution have angle of 1 ~ 10 ° .