分类
子分类
排序
叶黄素、玉米黄素生物活性及其在食品中应用研究进展
Advances in Studies on the Biological Activities of Lutein andZeaxanthin and Their Applications in foodAbstractBoth lutein and zeaxanthin belong to one of the carotenoids.They are ...
采取水热以及热退火的方法制备出了Y2O3Er3,Y2O3Er3,Yb3上转换发光材料
2.3.1XRD测试..262.3.2 FESEM表征.282.3.3Y203Er3计的上转换发光光谱.312.3.4退火温度对样品上转换发光的影响..3123.5反应釜内反应时长对样品上转换发光性质的影响332.3.6激发态寿命36、2.4本章...
不同堆肥方式对煤矸石有机肥理化性质的影响
山西能源学院学士学位论文文献综述不同堆肥方式对煤矸石有机肥理化性质的影响煤矸石是多种岩石的混合物,是煤炭开采加工过程的固体废弃物,处理不当给环境带来严重的污染或者安全隐患。堆肥就是...
半导体β-Ga2O3中本征氧缺陷的转变能级的第一性原理计算
AbstractIn recent years,the determination of Fermi energy levels in semiconductorsunder different conditions and the effect of defects in deep energy levels onluminous efficiency h...
分类讨论思想在中考数学中的应用
The Application of Classified Discussion Thought in Mathematics of SeniorHigh School Entrance ExaminationAbstract This paper mainly studies the application of classified discussion...
矩阵分解及其应用_
定义2.1.2酉矩阵:若一个n×n阶的复数矩阵U满足U=AHA=E,其中矩阵E为n阶单位矩阵,AH为U的共轭转置,则称U为酉矩阵0,定义2.1.3对角矩阵:在矩阵中,如果除了主对角线,其它元素均满足等于0的条...
浅谈中学数学教学中学生思维能力的培养
AbstractMathematics educator stolyard thinks:'mathematics activity is mathematicsthinking activity,the student's mathematics activity is the positive thinking activity inmathematic...
我国农民养老保险体系的研究——以泉州地区为例
AbstractThe number of old people in rural areas is increasing every year,and the largenumber of old people makes the retirement problem of farmers increasingly serious.Establishing...
中学数学应用题教学策略研究
目录1.绪论.…1.1选题意义….31.2文献综述..31.2.1国内研究情况31.2.2国外研究情况.41.3研究思路及方法42。应用题的内涵和教育意义..52.1应用题的内涵.52.2应用题的教育意义.53.初中和高中应用...
大学生网络心理依赖的成因及对策研究
目录摘要…Abstract..............一、选题背景及意义(一)选题背景(二)选题意义....……11.成因分析的意义…12.策略研究的意义..二、研究目的及重要性.2(一)研究目的...3(二)研究重要性2三、研...











