排序
含腈基的液晶制备和性能研究
AbstractChiral side-chain liquid-crystalline polymers were graft copolymerized by usingpoly(methylhydrogeno)siloxane,a cholesteric monomer (Mi)cholesteryl4-(undecen-1-yloyloxy)benz...
基于光辅助反应的化学发光和汞冷蒸气发生的研究
四川大学博士学位论文基于光辅助反应的化学发光和汞冷蒸气发生的研究统的COD测定方法相比,具有明显的优势:(1)分析时间短,大概5~10分钟就能完成一次样品测定;(2)不消耗昂贵的(Ag2SO4),有毒的...
年产2万吨酒精发酵车间设计
北京理工大学珠海学院AbstractAlcohol is widely used in national defense,food,biology,chemical industry andmedicine,etc.Stimulated by the increasing depletion of mineral energy and t...
年产2万吨柠檬酸厂生产工艺的设计
北京理工大学珠海学院课程论文annual output of 20000 tons citric acid factory Production processdesignAbstractIn this design,cassava is used as raw material.The dried tapioca is grou...
年产600吨无毒增塑剂乙酰柠檬酸三丁工艺设计
北京理工大学珠海学院2020届本科生毕业设计The preliminary design of the technology of 600 tons per yearNontoxic Plasticizer Tributyl acetylcitrateAbstractIn this design,600 tons of n...
年产2000吨高温抗氧化环氧树脂的合成工艺设计
AbstractDue to its outstanding and stable thermal conductivity,mechanical function,low costof finished products,simple molding process,suitable for large-scale production,andrelati...
墙衣净化室内空气甲醛的性能研究
AbstractStraw,cotton batting,talcum powder,diatomite,nanometer titanium dioxide,sodium dehydroacetate,phosphor,tea powder,deionized water,etc.were used as themain raw materials for...
碳纳米管电极在分析中的应用与发展开题报告
课题来源:教师给定题目课题研究的目的和意义:碳纳米管因其独特的结构和优异的物理化学性能,具有广阔的应用前景和巨大的商业价值。本文综述了碳纳米管的制备方法、结构性能、应用以及碳纳米管...
新高考背景下的中学化学学科现状调查及策略
AbstractFujian Province,as the third batch of pilot provinces for the reform of collegeentrance examination,will implement a new college entrance examination plan in2021.Under the ...
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 ...










