氨基甲酸的

Starting form chitosan,amidogen protecting,cross linking,etheration,amination,amidogen release and addition reaction with CS_2,and chitosan derivative containing dithiocarbamate group was firstly prepared.

本文在课题组前期关于淀粉改性重金属捕集剂研究工作的基础上，参考国内外的相关文献，建立了以壳聚糖为主要原料制备二硫代氨基甲酸改性壳聚糖重金属捕集剂的合成工艺。

The CC solution with 7% mass fraction was exposed to solution spinning in presence of 7% dilute sulfuric acid as coagulation bath after filtration and deaeration.

探索了尿素对纤维素氨基甲酸酯/氢氧化钠溶液的增溶作用，考察了不同浓度CC溶液的流变性能，选择CC质量分数为7%的溶液经过滤、脱泡后，以7%的稀硫酸为凝固浴进行溶液纺丝。

The optimum conditions were reaction temperature 120°C, reaction time 20h, mole ratio of 5-chloromethyl-2-oxazolidinone and sodium phenolate 1:1. 3,5-Dimethylphenol and epichlorohydrin in sodium hydroxide were condensated to give l,2-epoxy-3-phenoxy propane, then the reation of l,2-epoxy-3-phenoxypropane and the carbamate afforded oxazolidinone in the yields of 69.0%~76.0%. The side reaction had been avoided effectively by the uses of the excessive epichlorohydrin and mixed catalysts.

用3，5-二甲基苯酚和环氧氯丙烷在氢氧化钠存在下缩合生成苯氧基环氧丙烷，然后和氨基甲酸酯反应生成噁唑烷酮，采用过量环氧氯丙烷和使用混合催化剂，有效的避免了副反应的发生，提高了噁唑烷酮的产率，产率69.0%～76.0%。

Objective To study the mechanisms and treatment of ischemia /reperfusion injury, expression of intracellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) were measured, the effect on suppression of ICAM-1 and VCAM-1 by the pyrrolidine dithiocarbamate were investigated.

目的 为研究心肌缺血-再灌注损伤的机制和治疗途径，检测血管内皮细胞缺氧/再给氧后细胞间黏附分子- 1(intracellular adhesion molecule1，ICAM- 1)和血管细胞黏附分子- 1(vascular cell adhesion molecule1，VCAM-1)的表达，探讨抗氧化剂吡咯烷二硫氨基甲酸酯(pyrrolidine dithiocarbamate，PDTC)对血管内皮细胞表面细胞黏附分子表达的抑制作用。

METHODS:After the treatment of TRAIL or LPS at different doses,we tested the nuclear translocation of NF-κB by cell immunohistochemical staining and electrophoretic mobility shift assay,and evaluated the level of IκB by RT-PCR under pyrrolidine dithiocarbamatetreatment.

当不同浓度的TRAIL和LPS作用于细胞后，我们通过细胞免疫组化染色和凝胶电泳迁移试验来检测NF-κB核转位的情况。并通过RT-PCR的方法粗略评定二硫代氨基甲酸吡咯烷对抑制蛋白IκB的影响。

In order to solve the problem of produced waternot attaining quality standard and decrease pro cessing costs, the anthors synthesize a new type water processing chemicals and make quali tative analysis and effect test to the produot.

为了解决目前一些油田采出水处理达不到注水水质标准和降低处理费用的问题，我们合成了一种新型水处理药剂——二硫代氨基甲酸盐，并对合成的产品进行了定性分析和效果试验。

It is mainly formed by the reaction between urea (produced by the breakdown of arginine by the yeast) and citrulline (produced by the degradation of arginine by malolactic bacteria and ethanol).

葡萄酒中氨基甲酸乙酯主要由酵母降解精氨酸产生的尿素和苹果酸-乳酸菌降解精氨酸产生的瓜氨酸与乙醇自发反应产生。

Unsaturated polyester resins are the most widely used resin type for composites, comprising in excess of 80% of all thermoset resins (others being epoxies, phenolics, acrylics, imides, and urethanes).

不饱和聚酯树脂是复合材料使用树脂类型中应用最广泛的一种，也是热固性树脂最常用的一种（其它种类热固性树脂包括环氧树脂、酚醛树脂、丙烯酸树脂、酰亚胺树脂以及氨基甲酸乙酯）。

The protein level of NF-kB in nucleus peaks at 8h after stimulating with LBP (200μg/ml). In addition, PDTC, an inhibitor of NF-kB, whose effective concentration for NF-kB inhibition without any toxicity on cells is up to 100μmol/L, can significantly block NO production induced by LBP.

另外，NF-κB抑制剂吡咯烷二硫代氨基甲酸盐作用于RAW264.7细胞90min，然后加入200μg／ml剂量的枸杞多糖对巨噬细胞进行刺激，发现PDTC在各个时间点(6、12、18、24h)都明显抑制枸杞多糖对巨噬细胞释放NO的诱导作用。

The effects of different doses of urethane,chloral hydrate and pentobarbital sodium on the electrophysiological characteristic of sciatic nerve of toad in vitro were investigated by means of the extracellular recording action potential.

使用BL-420生物机能实验系统，采用细胞外记录神经干动作电位的方法，观察了氨基甲酸乙酯、水合氯醛和戊巴比妥钠3种麻醉剂对蟾蜍离体坐骨神经电生理特性的影响。

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。