硫

The result of immobilization showed that hydrophile membranes were more advantageous than hydrophobe ones to act as immobilization carrier. Crosslinking organophosphorus hydrolase by glutaraldehyde on polyethersulfone membrane is a simple and practical immobilization method. An appropriate amount of bovine serum albumin and crosslinker is necessary to get a good result of immobilization. In the biodegradation of methyl-parathion through enzyme membrane reactor, the effect of immobilized enzyme amount, flow rate of peristaltic pump, pH of the feed, and the methyl-parathion concentration on biodegradation rate was studied. It was shown that the biodegradation rate increased with immobilized enzyme amount and substrate concentration. Biodegradation rate didn't increase when the folw rate of the peristaltic pump was larger than 7 ml/min.

然后，研究固定化酶降解甲基对硫磷，从不同材料的膜载体固定有机磷水解酶的比较中，发现亲水膜比疏水膜适合作固定化酶载体；在此基础上，将有机磷水解酶固定在聚醚砜微滤膜上，并制成酶膜生物反应器，用于降解甲基对硫磷；戊二醛化学交联法固定时，酶液与10%牛血清白蛋白溶液的比例在3：1~2：1，与交联剂的比例在7：2~7：4范围内，固定化效果较好，并发现牛血清白蛋白和膜载体有降低酶活损失的作用；将固定化的酶膜装于酶膜反应器降解甲基对硫磷，实验结果表明：反应器的降解速率与固定化酶量呈正比，也随底物浓度的增加而加快，当流速低时，降解速率随流速增大而加快，到7ml/min以上时，降解速率不随流速脑黾佣洌到獾淖畹团ǘ任？

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods,at the B3LYP/6—311++G** level.Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6—311++G**基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

Theoretical studies on various geometrical structures of Hypophosphorous acid were carried out using DFT theoretical methods, at the B3LYP/6-311 ++ G(superscript **) level. Intramolecular proton transfer isomerization has also been studied using the intrinsic reaction coordinate.

采用量子化学密度泛函B3LYP方法，在6-311++G基组水平上全优化得到了硫代次磷酸的硫酮式和硫醇式两种构型异构体以及相应的对映异构体，同时对分子内质子转移异构化反应微观机理进行了理论分析。

Keywords hypophosphorous acid;thiol isomer thione isomers;enantiomer;proton transfer;isomerization reaction

单硫代次膦酸；硫酮式异构体；硫醇式异构体；对映异构体；质子转移异构化

Higher lightintensity increased the content of aliphatic GS, however light supply has nosignificant effect on indolyl and aromatic GS, provided P supply was sufficient.

较强光照对脂肪族硫代葡萄糖苷的合成有促进作用；对吲哚族硫代葡萄糖苷和芳香族硫代葡萄糖苷则没有显著的影响。

This paper provides a comprehensive survey of the chemical structures of all glucosinolates which have been identified up to now, summarizes the processes of their conversion to isothiocyanates and other products by myrosinase,and discusses the various factors which affect their degradation to special products.

介绍了迄今已发现的硫甙的化学结构，以及通过芥子酶的作用，硫甙降解成异硫酸氰酯和其他产物的途径，讨论了影响硫甙降解的因素。

Electrochemical behaviors on the surface of jamesonite in an acidic solution of pH4.0 buffer solution containing diethyl dithiocarbamate were investigated by the methods of cyclic voltammetry and AC impedance.The changes of the reactions,electrochemical adsorption,passivation action,electrochemical impedance and interfacial capacitance on jamesonite were discussed under the different conditions of electrode potentials.

用循环伏安和交流阻抗法，研究了脆硫锑铅矿在含乙硫氮的pH 4.0缓冲溶液中的表面电化学行为，讨论了在不同电位下脆硫锑铅矿表面的反应、电化学吸附、钝化作用、电化学阻抗、微分电容的变化。

No tetracthyl thiuram (TETD or D2) molecule formed by oxidation on the surface. At the potential from -0.25 V on, the chemical adsorption of jamesonite occurred. In the presence of diethyldithiocarbamate, the interaction between jamesonite and diethyldithiocarbamate became obvious from 0.35 V on.

采用循环伏安电位扫描研究方法，研究了乙硫氮在脆硫锑铅矿表面的电化学作用机理，在其表面没有氧化形成四乙基二硫化秋兰姆（TETD或D2）分子；电极电位从－0.25V左右开始就在脆硫锑铅矿产生了化学吸附。

Sulfur can promote the formation of chlorophyll; sulfur involved in the process of nitrogen fixation, to increase the utilization rate of fertilizer; in cruciferous rape, peanuts propylene mustard oil, Liliaceae onions and garlic contained in Suanyou fat, such as sulfur compounds in human nutrition and medicine There are special effects to enhance the quality of these crops.

硫能促进叶绿素的形成；硫参与固氮过程，提高肥料利用率；十字花科中油菜、花生的丙烯芥子油，百合科葱、蒜中所含的蒜油等硫脂化合物在人体营养和医药方面有特殊的功效，提高这类作物的品质。

The relationships of microbiologically sulfur producing and dissolved oxygen,volumetric loading rate were studied in detailed during biological treatment for wastewater containing sulfide.

采用接种排硫硫杆菌纯种的升流式生物填料塔法，重点研究了含硫化物废水生物处理过程中溶解氧以及容积负荷与单质硫形成的关系。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。