查询词典 structure group

Methods: According to the mechanism of cough reflex, the c-fibres's role in the respiratory system, and the principle of isosterism. Here, a peripheral antitussive LD was regarded as a lead compound. Amino functional groups, as substituents at the 1-hydroxy group of the racemate of LD, were introduced into the structure of the molecule. These novel compounds were confirmed by 1H-NMR, MS spectrum. Their antitussive activities were studied on mice in sequential method. The EDT50, the stimulating time that caused cough by NH3 on half of mice, were measured. Then could caculated the ratio R between the EDT50 of the treated groups and control group.

根据咳嗽反射的机制及C-纤维在呼吸系统的作用，以外周镇咳药左羟丙哌嗪为先导化合物，依据电子等排原理，在其结构中引入氨基以取代羟丙哌嗪分子中1位的羟基，设计一系列未见报道的化合物（01-15）；并采用了一条适宜的路线进行合成，通过1H-NMR、MS确证结构；采用&序贯法&实验进行新化合物的镇咳活性研究，动物模型采用氨水引咳小鼠，获得引致半数小鼠咳嗽的氨水刺激时间（EDT50）及给药组EDT50与对照组的比值R。

Results: OVX group, with weakened bone structure, had decreased cancellous bone and increased parameters of osteal formation and resorption compared with Sham, OVX+E and OVX+E+P groups(P.05). The bone mass, osteal formation and resorption in group OVX+P had no significant changes.

结果：与假手术组、雌激素及雌孕激素组相比，去卵巢大鼠松质骨骨量明显减少，伴有骨结构变差，骨形成和骨吸收的参数值增加(P.05)；与去卵巢组相比，孕激素组大鼠无显著改变。

A number of microplants with spherical, triangular, polyangular and boat-like shapes have been found both from the early Palaeoproterozoic Dashiling and Qingshicun Formations (ca. 2500- 2400 Ma) of the Doucun Subgroup of the Hutuo Group and the late Palaeoproterozoic Changzhougou and Chuanlinggou Formations (ca. 1800 -1700 Ma) of the Changcheng Group in North China. According to the features of these fossils, such as size, external shape and internal structure, they may belong to unicellular eucaryotic planktons.

在华北地区古元古代滹沱群豆村亚群的大石岭组、青石村组(约2500～2400 Ma)和长城群的常州沟组、串岭沟组(1800～1700 Ma)中存在着大直径的球形和形态呈三角形、多角形及船形微古植物，根据它们的大小、外部形态和内部结构等综合判别，它们可能属于单细胞真核浮游生物。

In electricity plus thermal group, the pathologic alterations were slighter than model group; there was little crack on the surface of cartilage, with intact collagen fiber structure and less pyknotic chondrocytes. Although some chondrocytes shrank, there were intact cell organs in many chondrocytes even chondrocyte cluster in some regions.

疏密波+热软膜组在病理程度上的改变明显轻于模型对照组，软骨表面裂纹少，胶原纤维结构基本完整，固缩的软骨细胞少，虽可见部分退变的软骨细胞，但部分软骨细胞具有较多的细胞器，某些区域形成软骨细胞簇。

The organization structure of experimental group was disorganized, cracked and the bone trabecula was rarefactive and non-intact and there was a great number of empty lacuna in bone trabecula. While there was the reverse situation in the control group .

结果实验组组织结构紊乱，破碎，骨小梁稀疏、不完整，有量的空骨陷窝，而对照组骨小梁相对较完整、排列整齐，骨小梁中的骨细胞清晰可见，核大，位于中央。

ResultThe organization structure of experimental group was disorganized, cracked and the bone trabecula was rarefactive and non-intact and there was a great number of empty lacuna in bone trabecula. While there was the reverse situation in the control group .

结果实验组组织结构紊乱，破碎，骨小梁稀疏、不完整，有大量的空骨陷窝，而对照组骨小梁相对较完整、排列整齐，骨小梁中的骨细胞清晰可见，核大，位于中央。

The lowest surface tension of N_xB solution was better at 25℃, and lowest surface tension would down with carbon . cmc( critical micelle concentration) and γ_ in N_(12)B are 4.1 × 10~(-4)mol/L, 24.5 mN.m~(-1),what was smaller than LAS . The cmc of N_(12)B- NaCl are down with NaCl up.The surface tension and cmc of N_(12)B and N_(16)B are higher than that of N_(12)OB and N_(16)OB because of hydrophilic group ,but that of N_(12)B is lower than that of N_(16)B because of hydrophobic group .5. The borate structure and semipolar bond were studied in different pH by infrared spectrum .It indicated that N_xB and N_xOB have not semipolar bond at pH

4、25℃，N_xB系列都有较低的表面张力，并随碳原子数的增加而最低表面张力下降。N_(12)B比同碳原子数的十二烷基苯磺酸钠的最低表面张力34.5mN／m低，且临界胶束浓度为4.1×10~(-5)mol／L，也比LAS低，且随着NaCl浓度的增加而略有下降，比较N_(12)B和N_(16)B，由于C_(16)疏水基的异构体使N_(12)B的临界胶束浓度和临界胶束浓度时的表面张力γ_(cmc都低，由于增加了亲水基团使得N_(12)OB和N_(16)OB的表面张力和临界胶束浓度都要高于N_(12)B和N_(16)B。

The packing arrangements in their mesophases of the polymers were influenced by the end functional group obviously. All the polymers with amide-substituted group showed the partly interdigitated bilayer smectic phase structure.

另外，聚合物的热行为和相转变行为受液晶聚合物的末端键接基团影响显著，所有末端包含酰胺基团的侧链偶氮苯聚合物在液晶温度均形成了部分穿插的双层近晶相结构。

In chronic stress group, comparing with the control group body weight, weigh of testis and epididymis and number of spermatozoon of the rats were remarkable decreased (P.05), and the structure of somniferous tubule became thin, the cells in lumina for spermatogenesis became less and 3β-HSD expressed in rat testis reduced 19.8%.

HE染色显示睾丸内生精小管细小，管腔内生精细胞稀少，免疫组化显示3β-HSD表达降低，western blotting分析3β-HSD降低了19.8%。

The studies found that compatibility between ZDDP and succinimide dispersants primarily depended upon active α-amino-group content in succinimides. The active α-amino-group content was affected by the alkylation and amination processes, and also affected by the structure of polyisobutylene in succinimides.

研究结果表明，丁二酰亚胺与 ZDDP 的相互作用主要取决于丁二酰亚胺中活泼的伯胺氮含量，而伯胺氮含量则决定于丁二酰亚胺在生产中的烃化、胺化工艺和聚异丁烯基的结构。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。