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The optimum conditions were obtained: reaction time 10 h, amount of catalyst for the quality of glycerin 5%, molar ratio of glycerin to acetic acid 1:8, under which the yield of glycerol triacetate reached 93.8%.

实验结果表明，反应时间10h，催化剂用量为甘油的5%，甘油／乙酸=1：8的条件下，三醋酸甘油酯的收率达93.8%。100~130℃时，反应活化能为113.245kJ/mol。

Inhibition and thermodynamics of new triazole derivative in 1 mol/L HCL solution .

新型三唑衍生物缓蚀剂在HCL中的缓蚀性能。

In this system trimethylamine was used as a trigger. Under the highest yield of styrene oxide, the amount of oxidant, phase transfer and catalyst were respectively 31.16%、8.96%、1.15%relative to the amount of styrene. With the experimental data, the reaction dynamics of the system was studied.

通过对钼蓝-氧化三丁锡体系动力学的分析计算，得出在该反应体系中，苯乙烯催化氧化成氧化苯乙烯的宏观反应动力学方程为：，其反应级数约为n=2，反应速率常数h-1mol-1，反应活化能Ea=165.08kJ/mol。

Supported input file formats include Brookhaven Protein Databank, Tripos Associates' Alchemy and Sybyl Mol2 formats, Molecular Design Limited's Mol file format, Minnesota Supercomputer Centre's XYZ format and CHARMm format files. Different parts of the molecule may be represented and coloured independently of the rest of the molecule or displayed in several representations simultaneously.

支持的输出文件格式包括pdb，mdl，msc，xmol，CHARMm 分子的不同部分可以在颜色和代号上相互区别，也可以以不同的表示方式同时呈现。

The results showed that (1) the positive staining of ChAT was obviously observed in the cells of the three kinds of human pituitary adenoma, however, it was lower than that in normal human pituitary gland;(2) ACh had a similar effect on the proliferation of the three kinds of human pituitary adenoma cells. ACh at 0.1～10 μmol/L decreased the ［3H］TdR incorporation and the MTT A value in a dose-dependent manner. At the same time, ACh decreased the ratio of S or G2 phase pituitary adenoma cells significantly, but increased the ratio of G1 phase pituitary tumour cells markedly;(3) the effect of acetylcholine on the proliferation of human pituitary adenoma cells was inhibited by atropine, but not by tubocurarine;(4) ACh had no effect on the apoptosis of human pituitary adenoma cells cultured in vitro.

结果发现：(1)三种垂体腺瘤细胞中均有胆碱酯酶的表达，但明显少于正常垂体；(2)ACh对三种类型的人垂体腺瘤细胞增殖代谢的影响相类似，不同浓度的ACh能明显抑制体外培养的三种人垂体腺瘤细胞的增殖，呈明显的剂量效应关系，同时ACh能减少垂体腺瘤细胞进入S、G2期的细胞比例，而使处于G1期的细胞比例增加；(3)ACh的这种作用可被阿托品阻断，但不受筒箭毒的影响；(4)ACh对体外培养的三种人垂体腺瘤细胞凋亡无明显影响。

This result agrees well with the literature values of 23.5 and 22.0 kcal/mol obtained for the solution polymerization of partially neutralized acrylic acid (pH = 11) and undissociated acrylic acid(pH = 1), respectively.

这一结果也同意与文学价值的23.5和22.0千卡/摩尔获得的溶液聚合部分抵消丙烯酸（ pH值= 11 ）和undissociated聚丙烯酸（ pH值为1），分别。

A specific bursting, parabolic bursting induced by veratridine, has been observed in rat injured sciatic nerve.

在大鼠受损坐骨神经上加入 5 μmol L藜芦碱溶液，观察到了抛物线簇放电的现象。

RESULTS: After perfusion of 0.5 μmol/L veratridine, the rat pyramidal neurons in CA1 area displayed relatively fixed-mode of runs of PDS bursting, followed by the hyperpolarization of cell membrane.

小剂量藜芦碱可在大鼠脑海马CA1区锥体神经元上诱发出阵发性去极化漂移样癫痫活动。

Different responses of seed germination physiology in mung bean and common vetch towards Cd2+ treatment were conducted with an experiment.

采用室内试验方法，研究了绿豆和箭舌豌豆的种子萌发对不同浓度Cd2+处理的响应。结果表明，较低浓度的Cd2+(低于50或100μmol·L-1)处理对这两种作物的种子发芽率和发芽系数无明显的影响，但影响其活力指数。

The different content TiN added 3 mol% yttria stabilized zirconia were researc- hed in this study.

本实验以不同比例氮化钛(10、20、30 wt%)添加於钇安定氧化锆3mol。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。