查询词典 conjugation

A new organic compound, trans-2--5-dimesitylborylthiophene (abbreviated as DMASBT, 5) with dimesitylboryl, dimethylamino and styryl-thiophene as electron acceptor, electron donor and conjugate bridge respectively, was synthesized. Its crystal structure determined by X-ray diffraction method indicates that the B-C bond between B atom and it bridge is obviously shorter than those of between B atom and mesityl groups. This remarkably strengthened B-C bonding can be regarded as an evidence of additional p-7t conjugation between the B atom and n bridge.

合成了以含硼基团为电子受体，以二甲胺基为电子给体，以苯乙烯基噻吩为共轭桥的新化合物2-[（4'-N，N-二甲胺基）苯乙烯基]-5-二米基硼-噻吩 trans-2-[(4'-N， N-dimethylamino) styryl]-5-dimesitylboryl-thiophene（简写为DMASBT，5）。X射线衍射方法测定其单晶结构表明，硼原子与π共轭桥之间的硼碳键相对于其它的硼碳键明显缩短，硼与π共轭桥之间存在除了σ键之外的p-π共轭作用。

The location and structures of sex-pheromone-producing gland in female H.insularis were studied by EAG,GC,SEM,and TEM.These studies showed that thegland situate in the intersegmental membrane between the eighth and ninthabdominal segments,and is an eversible abdominal fold;Many plump cones disturbon the surface of the gland.The glandular cells of 2-day old virgin female H.insularis are arranged in one layer,among which the central cells are columnarepithelial cells and flat on two sides.The nucleus is irregular elliptical.There isevident conjugation between cells and the involution is more in the basal membraneof cell.Microvilli are distributed on the cytoplasmic membrane and linked withendocuticle on which there are many layers of chitin,and the outer cuticule is staineddeeper.The cell contains bubbles,mitochondria,glycogen deposits,roughendoplasmic reticulum and smooth endoplasmic reticulum.

结合触角电位、毛细管气相色谱、扫描电镜、透视电镜等技术对小线角木蠹蛾雌蛾腹尖末端不同组织部位提取物的测定分析以及腺体位置和形态结构的观察发现：小线角木蠹蛾性信息素分泌腺位于腹部末端8～9节之间，是一个由节间膜特化而成的上皮结构，为一可外翻的腹褶，腺体表面分布着饱满的锥形体，羽化后2天未交尾的雌蛾腺体细胞呈单层排列，腹面中央由密集的柱形上皮细胞组成，细胞排列向两侧延伸至背部，其形状由柱形逐渐变为扁平形，细胞核为椭圆形，细胞与细胞间有明显的胞连接，细胞基底膜基褶较多，质膜上分布着微绒毛，并与内表皮连接，内表皮上有多层几丁质，外角质层染色较深，细胞质中含有空泡、线粒体、脂质粒、粗面内质网和光面内质网。

During conjugation, the complementary mating type cells unite pairwise undergo meiosis, exchange gametic nuclei and separate again.

在接合生殖期间，交配型互补的细胞相互识别配对，进行减数分裂、交换配子核，然后分开。

Lathe and Walker (1957) investigated the conjugation of bilirubin with glucuronic acid.

Lathe和 Walker (1957)研究了胆红素和葡萄糖醛酸结合。

Kamil, Smith and Williams (1952) investigated the conjugation of higher alcohols with glucuronic acid.

Kamil， Smith 和Williams (1952)研究了高乙醇和葡萄糖醛酸接合。

Conjugation of secondary alcohols increased with increasing number of carbon atoms in the molecule from 10% with isopropanol to 60-70% for the secondary heptyl alcohols.

二级乙醇的接合随分子中碳原子数增加而增加，从异丙醇10%到二级庚基乙醇60-70%。

The base material of mesangial region increased, mesangial region intercapillary cells swelling,high density election deposition also be seen; basal lamina uniformity in group C,few foot process conjugation.

结论肾脏VEGF蛋白表达的上调可能是糖尿病肾病的发生机制之一，辛伐他汀对糖尿病大鼠肾脏具有确切的保护作用，这可能部分与其抑制肾脏VEGF过度表达有关。

The paper introduces the technologies to recover dilute ethylene in FCC dry gas from refinery,including pressure swing adsorption,conjugation absorption separation,intercooling oil absorption,advanced recovery system,and membrane separation,and makes a comparison among the technologies.

介绍了炼厂催化裂化干气稀乙烯的回收技术，包括变压吸附、配合吸收分离、中冷油吸收、先进回收系统、膜分离技术，并对这几种技术进行了比较。

The ratio of free Mit content to total Mit content in IM was 1. 1%, and that in ISM was 4. 7%. Because of its higher drug conjugation rate and good solubility, ISM was select to carry out further investigation. The lyophilized powder of solution type was prepared by using 3% mannitose as the supporting agent with ISM content of 1mg per bottle, whose comprehensive properties were evaluated. The preparation, having hygroscopic property, should keep airtight storage.

选择药物结合率高且偶联物水溶性好的ISM，以3％甘露醇为冻干保护剂，将偶联物制成了溶液型冻干粉针剂，剂量每瓶1mg，并进行了制剂综合性能评价；本制剂有一定吸湿性，应密闭贮存；4℃贮存3个月后制剂稳定性良好，制剂中胰岛素仍保持生理活性，而25℃贮存3个月后胰岛素活性有所降低，所以制剂应低温保存。

In this paper, twenty novel meso-substituted porphyrins of four series were designed and synthesized by increasing the conjugation of porphyrins or introducing substituents with high fluorescence quantum yield into the meso-position of porphine, and then red OLEDs were fabricated by doping porphyrins into a suitable host using ten porphyrins compounds and their electrolumin -escence properties were tested. The main contents and results were generalized as follows:Three meso-tetrakisporphyrins 4a-c and three conjugations of porphine-triarylamine linked by styrene 10a-c were synthesized and characterized by 1H NMR, MS, UV-vis spectra and fluorescence emission spectra.

本文通过增大卟啉分子的共轭结构或将具有高荧光量子产率的基团连接到卟吩环的中位得到了四类共20个新型的卟啉化合物，并选取其中10个化合物制备有机发光器件来考察材料的电致发光性能，具体内容包括以下几个部分：设计合成了3个中位直接被三芳胺取代的卟啉化合物4a-c和3个通过苯乙烯连接的卟吩-三芳胺共轭体10a-c，通过核磁氢谱、质谱、紫外吸收光谱和荧光发射光谱表征了新化合物的结构。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了