氢化

In this paper,the Lactate dehydrogenase, malate dehydrogenase,superoxide dis-mutase of five tissues of Carassius auratus gibelio; Cyprinus carpio Linnaeus; Esox americanus Gmelin; Leuciscus waleckii in Dalai Lake were studied by vertical polypropylene gel electrophoresis and the isozyme composion of four kinds of fishes were obtained. Then the analysis of the expressing specify of 3 kinds of isozyme in different tissues and loci were carried on and the genetic base of isozyme system was discussed.

本实验采用垂直板聚丙烯酰胺凝胶的电泳方法对达赉湖的野生鲤鱼、银鲫、狗鱼、东北雅罗鱼的五种组织脏器(肌肉、心脏、肝脏、脑、眼睛)的三种同工酶(苹果酸脱氢酶、乳酸脱氢酶、超氧化物岐化酶)进行了初步研究，获得了达赉湖四种鱼类物种的同工酶谱，在此基础上对同工酶在不同组织的表达差异和基因位点进行分析，探讨其同工酶系统的遗传基础。

The hydrogenation and methyl esterification of furoic acid over Pd/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor by one-step method.

采用连续流动固定床微反应器，以糠酸、甲醇、氢气为原料，Pd/γ-Al2O3为催化剂，使糠酸一步加氢甲醋化生成α-四氢糠酸甲酯。

The hydrogenation and methyl esterification of furoic acid over Pd-Ni/γ-Al2O3 catalysts was investigated in fixed bed micro-reactor under different conditions such as reaction temperature,pressure,H2 space velocity,space velocity of furoic acid and methol,ratio of H2 and furoic acid and so on.

以糠酸、甲醇、氢气为原料，采用连续流动固定床微反应器，Pd-Ni/γ-Al2O3为催化剂，使糠酸一步加氢甲酯化生成α-四氢糠酸甲酯。

Keywords Black mercury sulfide;Thickish hot hydrochloric acid;Hydrobromic acid;Hydroiodic acid;Dissolve

黑色流化汞；热浓盐酸；氢溴酸；氢碘酸；溶解

A mild and convenient method for the synthesis of 4(3)-substituted 3(4)-nitro-1H-pyrroles and 3-substituted 4-methyl-2-tosyl-1H-pyrroles from nitroolefins and tosylmethyl isocyanide in ionic liquid 1-butyl-3- methylimidazolium bromide was developed.

本文以离子液体－溴化1-丁基-3-甲基咪唑为溶剂，采用对甲苯磺酰基甲基异腈与硝基烯反应生成4(3)-取代-3(4)-硝基-1-氢吡咯或3-取代-4-甲基-2-对甲苯磺酰基-1-氢吡咯。

The natural bond orbital analysis shows that these H-bonds can be interpreted by the theory of hypercon jugation and rehybridization.

自然键轨道分析表明，超共轭和重杂化理论可以解释这些双氢键和氢键的形成机制。

Zn-La alloys increase the overpotential ofhydrogen evolution, Tafel slope 〓 and polarization, decrease the corrosion current density, inhibitthe corrosion of zinc electrode in alkaline solution, decrease anode Tafel slope 〓, promotedischarge reaction of zinc electrode, have higher passivation current density, inhibit thepassivation of zinc electrode, avoid the oversaturation of zincate in electrolyte, greatly increase〓 diffusion coefficient, decrease Tafel slope 〓, polarization and the overpotential of deposition,inhibit the dendrites formation and improve the electrodepostion of Zn.

实验结果表明，Zn-La合金电极显著改善了锌电极的各项电化学性能：提高析氢过电位、析氢过程Tafel斜率〓和极化，减小腐蚀电流密度，抑制锌电极在碱液中的腐蚀；降低阳极Tafel斜率〓，促进了锌电极的放电反应；具有较高的维钝电流密度，抑制锌电极的钝化；有效避免了溶液中锌酸盐的过饱和现象：使〓的扩散系数明显增大：降低Zn沉积过程的Tafel斜率〓、极化和沉积过电位，明显抑制锌枝晶的生长，改善了锌的电沉积性能。

Selective hydrogenation for pentadiene in FCC C 5 fractions and hydroetherification of tertiary pentanes with methanol were investigated.

采用离子交换法制备了Pd/D0 0 5树脂催化剂，对催化裂化C5 馏分中戊二烯的选择性加氢和叔戊烯与甲醇的临氢醚化反应进行了研究。

A Pd /D005 resin catalyst was prepared by using ion exchangemethod.Selective hydrogenation for pentadiene in FCC C5 fractions and hydroetherification of tertiary pentanes with methanol were investigated.

采用离子交换法制备了Pd/D005树脂催化剂，对催化裂化C5馏分中戊二烯的选择性加氢和叔戊烯与甲醇的临氢醚化反应进行了研究。

A Pd /D005 resin catalyst was prepared by using ion exchange method.Selective hydrogenation for pentadiene in FCC C5 fractions and hydroetherification of tertiary pentanes with methanol were investigated.

摘 要：采用离子交换法制备了Pd/D005树脂催化剂，对催化裂化C5馏分中戊二烯的选择性加氢和叔戊烯与甲醇的临氢醚化反应进行了研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。