化合物

In the experiment,EAG technology was used to study the olfactory response of three typical bark beetle species to each one of the semiochemicals at different concentration,and the walking responses of the three species to each one and the different combinations of the semiochemicals were observed by using Y-tube olfactometer.

本研究通过触角电位技术，研究了3种具有代表性的小蠹虫对不同信息化合物及其不同浓度的EAG反应，并结合"Y"型嗅觉仪测定了3种小蠹虫对不同信息化合物及其组合的趋向反应。

The callus of barnyard grass was treated with compound 5 1-phenyl-4-(3,4-methylenedioxy-phenyl-diacetylene under UV-A irradiation for 3 h, which forms an inner environment of oxidizing stress in the cells.

摘 要：用多炔类化合物 1-苯基-4-（ 3 ， 4-亚甲二氧）-苯基丁二炔（简称化合物 5 ）处理稗草愈伤组织，经紫外光（ 320~400 nm ）照射后，诱导细胞内形成氧化胁迫环境。

Quantitative structure-activity relationship studies showed that when the test grass was rape, their herbicidal activity was mainly related with substituent molar refractivity; when the test grass was barnyard grass, their herbicidal activity was mainly related with the electronic parameters of the substituents at the para-position of benzene ring.

定量的结构与活性关系研究表明，当作用对象为油菜时，化合物的活性可能主要与取代基R的摩尔分子折射常数有关；当作用对象为稗草时，化合物的活性可能主要与取代基R的电性参数有关。1-位为氢时，有利于对油菜生长的抑制；1-位为甲基时，有利于对稗草生长的抑制。

It is rather instructive for the further researches for the interaction of radiation with polymeric compounds, especially for the research of the ring benzene.

对于高分子化合物尤其是具有苯环结构的有机高分子化合物的外场作用特性的研究具有参考价值。

However, benzene ring is not chemically stable, it will form various compounds with other chemicals especially hydrocarbons.

不过 benzene ring 化学上并不稳定，所以容易跟其他物质形成化合物，例如碳氢化合物。

Based on the QSAR equation for MDR modulators, a new type of MDR modulators was designed with benzimidazole moiety as their parent nucleus, and four compounds of this type were synthesized and characterized.

在MDR逆转剂构效关系的理论指导下，选定苯并咪唑为母核，设计了一类新的MDR逆转剂候选化合物，合成了4个这种类型的新化合物。

The solderability of benzimidazole films on the surface of copper is investigated by solder float test. Several factors which influence solderability of the films are discussed.

采用上锡率法研究了咪唑化合物在铜表面所成保护膜的可焊性，并探讨了咪唑化合物类型、膜厚、再流焊次数及高温热冲击对该膜可焊性的影响。

Moreover for derivatives of benzimidazole, density functional theory method calculations of the structure, atomic charge distributions and electronicspectra have been performed at B3LYP/6-311G*~* level. The results of the calculationshave been compared with experimental data and they are found to support each other,which provide useful information for the further study on derivatives ofbenzimidazole.

并运用密度泛函理论在B3LYP／6-311G~**料水平上，对化合物的优化几何、原子电荷分布及转移、电子光谱以及及在不同温度下的热力学性质进行了计算，从而为苯并咪唑类化合物的进一步研究提供了有价值的参考和理论数据。

Polar compounds, such as dihydro-alkyl furan-one, furandione, benzofuran, benzosazol, aldehydes and esters were also detected.

对部分极性化合物分析，检出了二氢烷基呋喃酮系列、呋喃二酮、苯并呋喃及少量醛类和酯类化合物。

In this thesis, a series of benzamides and thioureas derivatives have been designed and prepared. By reasonable photoreaction conditions, a series of benzophenone and quinazoline compounds have been synthesized and structurally determined by NMR, MS and X-ray crystallography, respectively.

本文设计并合成了一系列苯甲酰胺和硫脲衍生物，通过选择合理的光反应条件，合成了一系列二苯甲酮和喹唑啉类化合物，应用核磁、质谱以及X-射线衍射技术对这些化合物的结构进行表征。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。