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...

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...

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...

1前言1.1何首乌的概述何首乌，是一种蓼科植物中药何首乌（Polygonum multiflo一u1Thmb.)的干燥块根，含有多种药理活性成分，例如二苯乙烯苷、蒽醌类衍生物和软磷脂等，是享誉中外、延用千年的知...

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...

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 ...

Production process design of polyimide film with annual outputof 1000 tonsAbstractPolyimide (PI)films have good physical properties,wear resistance,heatresistance,corrosion resista...

Production process design of 1500 tons per year epoxy acrylate forwaterborne metal baking paintAbstractThis design is a production process design for the production of 1500 tons of...

Preparation of Humidity Regulating Resin for Pot CultivationSummaryIn this paper,non-ionic humidity regulating resin was synthesized from polyvinylalcohol 1788,maleic acid,terephth...

本课题旨在对优级硬脂酸盐产品的工艺过程进行研究，开发一条具有实际应用价值的优级硬脂酸盐的工艺路线。3、高密度聚乙烯用催化剂课题背景自1971年中国第一套聚乙烯装置投产以来，中国的聚乙烯P...