化学合成

People in natural Pyrethrum ester chemical structure on the basis of a variety of pyrethroid insecticides, but the validity of these pesticide residues are short and easy solutions for optical characteristics.

人们在天然除虫菊酯化学结构研究的基础上合成出了多种拟除虫菊酯杀虫剂，但这些杀虫剂均有残效期短和极易光解的特点。

The bioligical activities of all complexes were tested by means of modified pyrogallol autoxidation . The results indicates that V-SOD mimics present limited fine biological activities. This work opens up a new path for syntheizing new SOD mimics and studying the relationship between structure and biological activity of the mimics compounds.

利用改进的邻苯三酚自氧化法测定了所合成配合物的生物活性，结果显示钒的模型配合物具有较好的活性，为拓展研究SOD模型化学奠定了基础，开阔了思路。

Preparation of pyruvate can be achieved by chemical catalytic synthesis, microbial fermentation and biocatalysis.

丙酮酸的生产方法主要有化学催化合成法、微生物发酵法和生物催化法。

Results: we got the highest 18F-FDG productivity (55%) and radiochemistry purity (93%) with 0.2ml K2CO3, 0.3ml BMI, 0.7ml acetonitrile and TATM 25mg.

结果：采用25mg TATM在0.2ml K2CO3、0.3ml离子液体体积、0.7ml乙腈时获得最高的合成效率(55%)和放射化学纯度(93%)。

He western corn rootworm induces the roots of many maize varieties to emit-β-caryophyllene, which attracts entomopathogenic nematodes that infect and kill the voracious root pest.

ed Turlings及其同事把一种来自牛至的-β-石竹烯(EβC，这是一种能吸引线虫的化学物质)合成基因插入到了一种玉米品种中，从而让它恢复了这种保护手段。

The phase behavior of monomer and network polymers was investigated by DSC, POM, and X-ray measurement. The monomer exhibits typical nematic threaded and schlieren texture.

合成的液晶单体及聚合物的化学结构均通过红外的表徵，利用DSC、POM和X射线衍射技术研究了其相行为。

DNA scission chemistry shows that the drug can cleave supercoiled DNA into open-circular form at low concentration without addition of H〓O〓 or UV irradiation.

DNA断裂化学实验结果表明，我们合成的产物可以在很低的浓度下切割pBR322 DNA。

The interaction of chemical molecules and biological ones, especially sequence specific recognition and site-specific cleavage of DNA have many applications such as in DNA sequence determinations, chromosome analyses, gene therapeutics, and recombinant DNA manipulation. So it is significant to develop artificial enzymes for the scission of nucleic acid with high activity and selectivity at normal condition.

化学小分子与生物大分子的相互作用，尤其是人工核酸定位切断试剂对DNA的切断在DNA序列测定、染色体分析、基因治疗以及DNA重组方面有着广泛的用途，因此进行人工合成核酸定位切断试剂及其与DNA的相互作用的研究具有重要的理论意义和应用价值。

Theoretical analysis and experimental results indicate that reaction of zinc with selenide as fully as possible under H2-O2 flame at about 1500℃ is the key step in the synthesis process and prolonging holding time at high temperature, which makes the diffuse reaction adequately take place, is favourable to obtain stoichiometry ZnSe polycrystalline.

理论分析和实验研究均表明：前期H2-O2焰下高温灼烧(~1500℃)使Zn和Se充分反应，是合成工艺的关键；延长后期恒温时间（不少于2周），使扩散反应进行完全，有利于获得更接近化学计量比的ZnSe多晶料。

A lot of works on both of modification for the electronic structure on the surface of C_(60) and designation of side chain structure have been completed.

这一系列化合物的合成，令C_(60)球表面开环和球体积增大，这对以化学方法置入粒子提供了可能性。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。