查询词典 via

It was found that hyaluronidase was not a necessary factor to establish apneumococcal meningitis via intranasal instillation.

模拟S.pn在人类感染途径，通过鼻腔滴注TIGR4成功建立了小鼠脑膜炎模型，并且证实小鼠可出现嗜睡、弓背等脑膜炎典型症状，为下一步研究S.pn致脑膜炎的分子机制奠定了基础。

A new antibody releasing system has been developed by covalently attachingIgG to the biodegradable hyaluronic acid hydrogel via the hydrolyticallyunstable hydrazone linkage, aiming to deliver the antibody of CNS regenerationinhibitors to the injured brain. Furthermore, pH sensitive linkage-hydrozone has beenformed between hydrogel and antibody.

这一将该材料植入成年缺损大鼠的大脑皮层后，该材料具有良好的神经相容性，能够抑制胶质瘢痕的形成，并能诱导神经胶质细胞的迁移进入材料，为轴突的再生提供良好的生物为环境，促进神经轴突长入将改性后的水凝胶。

Theoretical investigation of the solvent effects on the mechanism of the reaction of pentafulvenone with hydrocyanic acid to produce the main product of acid of type b was carried out at B3LYP/6-311+G** level via the conductor-like polarizable continuum model.

在B3LYP/6-311+G**计算水平上，采用导体极化连续模型研究了溶剂化效应对6-亚甲基环戊二烯酮与HCN反应生成主要产物b类酸的反应机理的影响。

Theoretical investigation of the solvent effects on the mechanism of the reaction of pentafulvenone with hydrocyanic acid to produce the main product of acid of type b was carried out at B3LYP/6-311+G(superscript **) level via the conductor-like polarizable continuum model.

在B3LYP/6-311+G计算水平上，采用导体极化连续模型研究了溶剂化效应对6-亚甲基环戊二烯酮与HCN反应生成主要产物b类酸的反应机理的影响。

Hydrocyanic acid and water proceed via a five-centred transition states then transformed by its exterior hydrogen-bond; The results show that the activation energy of the isomerizing reaction in the aqueous phase is lower than that in the gas phase. It is likely that the hydrogen bonds formed in the complexes and the solvent effect play an important role.

计算结果表明，在水相中异构化过程的活化能比在气相中低，无论在气相还是在水相中异氢氰酸通过水氢键转化成氢氰酸容易些，而氢氰酸由水氢键转化成异氢氰酸相对要困难些，分子间氢键和溶剂化效应在异构化反应过程中起到重要的作用。

In an undivided cell, the degradation of methyl red via indirect single and paired electrolysis in the presence of bromide and hydrogen peroxide redox mediators was explored.

本研究是於一未隔离式电解槽中，藉由Br-/Br2与O2/H2O2氧化还原媒子之间接催化分解甲基红之单一与组对电化学反应。

Preparation method of perfluorooctane based on n-octane and anhydrous hydrogen fluoride as starting materials via electrochemical fluorination is described in detail finally.

介绍了全氟辛烷的性质和用途，列举了合成全氟辛烷的各种工艺路线，最后较为详细地论述了以正辛烷和无水氟化氢为原料，通过电化学氟化法制备全氟辛烷的工艺过程。

In the first chapter of this thesis, we prepared the desired β-amino acid ester starting from 1-tridecanol and converted it to the corresponding γ-amino alcohol via LAH reduction and hydrogenolysis.

在论文的第一章，我们从十三醇出发，以S型苄基保护的α-甲基苄胺为手性源，经过多步反应制得光学纯的β-氨基酸酯衍生物。

Amino alcohol via LAH reduction and hydrogenolysis.

经过LAH还原和氢解作用得到了-氨基醇。

An alternative way of the synthesis of methanol from syngas is low-temperature methanol synthesis via methyl formate in liquid phase, namely, carbonylation of methanol in the first step, and hydrogenolysis of methyl formate in the second step.

低温液相甲醇合成是指在（80-160℃）范围内，甲醇首先与合成气中的CO发生羰基化反应生成甲酸甲酯，甲酸甲酯再氢解生成甲醇的两个反应在一个反应器内串联进行的方法。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。