trace element analysis

Factor analysis method in study on trace element distribution in coal

因子分析法在煤中痕量元素分布特征研究中的应用

Study and Manufacture of High Pressure Wet Digester and its Application to Trace Element Analysis in Human Body

高压湿法消化器的研制及其在人体痕量元素分析中的应用

Analysis of Relation between the Trace Element in Hair and Blood Pressure

发中微量元素与血压关系的分析

A Quantitative Analysis of Six Kinds Trace Element in Serum of Umbilical Cord Blood

脐带血血清中六种微量元素含量的研究

The regularity of random error of trace element analysis is discussed.

本文讨论了痕量元素分析中随机误差的规律性。

The non-linear finite element method for plate-shell structure is proposed to trace up whole-process analysis of tapered H-section steel column, while the effects of many factors on member such as residual stress, initial geometric imperfections and so on are focused.

采用板壳单元离散变截面H型钢柱，并同时考虑构件整体与局部初始缺陷、残余应力、材料屈服、几何非线性等因素的影响。