查询词典 derivative

Finally, two types of novel shell cross-linked micelles in aqueous solution were prepared from these remarkable PMEO_2MA-b-P(DMA-co-QDMA)-b-PDEA triblock copolymers by cross-linking the inner P(DMA-co-QDMA) shell of micelles upon the addition of diazide tetra derivative in the presence of copper catalyst using click chemistry.

来源：1212A21BC论文网www.abclunwen.com

Two types of samples for cholesteryl derivative,coattail-like cholesterol ester and cholesteryl dicarboxylate,were synthesized by using a super esterification method and a catalytic acylation method.

胆甾醇酯具有胆甾相液晶行为，已应用于人工分子识别的研究和仿生物材料制造等领域，其合成方法也引起了人们的关注。

Herein, we reported the preparation of an 123I-labeled Thioflavin-T derivative IMPY 6-iodo-2-(4'-dimethylamino-) phenyl-imidazo

本研究制备碘－123-IMPY6-iodo-2-(4'-dimethylamino- phenyl-imidazo [1，2-]apyridine，并探讨其成为诊断阿兹海默氏症核医药物的可行性。

As a part of a search for new antitumor agents from Chinese medicinal plants, the roots of Salvia prionitis, collected in Jiangxi Province, was investigated. From the roots of this plant, a new diterpene, saprirearine (95), a new anhydride-type compound, saprionide (96), a new 7, 8-seco-abietane diterpene derivative, 7, 8-seco-paraferruginone (99), and a new 4, 5- seco-5, 10-friedo-abietane diterpenoids, 3-keto-4-hydroxysaprorthoquinone (102), have been isolated along with 6 known compounds. Their structures were established by spectroscopic methods and chemical transformation.

在对红根草的乙酸乙酯提取物进行分离，纯化和结构研究中，共得到10个化合物，其中4个是新化合物，3个新化合物具有新颖的重排松香烷型二萜骨架，新化合物99为首次从本属植物中分得的7，8-开环的松香烷型二萜醌类化合物。

Until the early 1960s, rock \'n\' roll went through a doldrum of derivative mewing by white singers, with only occasional breakthroughs by such Negroes as Ray Charles and Fats Domino.

直到60年代初，白人歌手才带领摇滚冲破后低迷时期，间或也有诸如Ray Charles 和Fats Domino这样的黑人闯入。

A new approach towards three-dimensional conducting polymers was explored by the doping of polyaniline emeraldine base with the synthesized C〓 derivative.

本文还对无显影气相光刻工艺进行了优化，改进了腐蚀装置并尝试用准分子激光器作为曝光光源，获得了0.4μm的高分辨率。

Main properties and uses, raw material production of erucic acid, preparation from rapeseed oil and derivative products development of erucic acid were introduced.

对芥酸的主要特性与用途、芥酸原料的生产、菜籽油中芥酸的制取以及芥酸衍生产品的开发等进行了介绍。

With the characteristics of wide uses, high added values, increasing market demand and renewability, erucic acid is an important material for fine chemical industry in 21st century, from which a lot of excellent derivative products can be developed.

芥酸具有用途广、附加值高、市场需求量大以及可再生等特点，是21世纪的重要精细化工原料。以芥酸为原料又可开发出一系列优良的衍生产品。

With the characteristics of wide uses,high added values,increasing market demand and renewability,erucic acid is an important material for fine chemical industry in 21st century,from which a lot of excellent derivative products can be developed.

芥酸具有用途广、附加值高、市场需求量大以及可再生等特点，是21世纪的重要精细化工原料。

Experiment results indicate that both the ethylenic derivative of benzophenone and the new synthesized polysiloxane are characteristic of three typical intensive and broad absorption bands in ultraviolet region at about 240nm, 288nm and 326nm, and show effective ultraviolet absorptive ability in wavelengths between 240nm and 400nm.

结果表明：中间体和聚硅氧烷在紫外光区均具有二苯甲酮衍生物特有的三条吸收谱带，对波长240~400nm的紫外光有良好的吸收作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。