查询词典 density matrix

In this paper,we present a method to enhance the signal/noise ratio of three-component seismic data by an adaptive polarization filter.To achieve this aim,the matrix of spectrum density is constructed,after the introduction of multi-taper method,to compute th...

本文在引入多窗谱分析方法的基础上，通过对谱密度矩阵特征问题的求解提取三分量地震记录的偏振参数，实现频率域偏振分析；根据所求得的偏振参数以及随机噪声和有效信号的偏振特性差异，设计相应的自适应滤波器，通过该滤波器的滤波作用，最终实现压制随机噪声的目的。

The results suggest that the electron density of the interface between GP zone and the matrix is coherent under the first order approximation, thus particles of GP zone are prone to growing, while β phase is not coherent, which will restrain recrystalization particles of β phase from growing, however β phase is coherent to enhance resistance to deformation of the alloy under high stress.

结果表明：Al-Mg-Si合金GP区与基体界面电子密度在一级近似下连续，GP区粒子易于长大，而β相不连续，抑制了β相再结晶晶粒的长大，但它在高应力下呈现连续，从而提高合金变形抗力。

Methods The chondrocytes isolated from mini swines' ears were mixed with injectable biocompatible matrix,and the density of cell suspensions were 10,20,30,40,50,60,70×10 6/ml.

结果在动物自体内形成的软骨组织，与正常软骨组织有相似的组织学特性，形成软骨组织最适细胞浓度为50×106／ml，最佳形成时间是第6周。

High volume fraction SiCp reinforced aluminum matrix composites and high Si content Al-Si alloy become the ideal candidates for electronic packaging materials due to their superior properties such as high thermal conductivity, tailorable coefficient of thermal expansion as well as low density.

高体积分数的SiCp/Al复合材料和高Si含量 Al-Si 合金具有高导热、膨胀系数可调、低密度等特性，成为理想的电子封装材料。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。