化学合成

Studying the sol-thermal and chemical metathesis synthesis of nanomaterial powder is the main task.

在课题研究期间，分别对溶剂热合成和化学交换法进行了研究与应用。

Catalyst development over a period of more than thirty years led in 2005 to the Nobel Prize in Chemistry "for the development of the metathesis method in organic synthesis."

催化剂经过三十余年的发展终于因"有机合成中复分解反应方法的进展"在2005年获得了诺贝尔化学奖。

Polypyrrole is a typical conductive polymer and is also the most studied and used one. It has the advantages of convenient synthesis, needlessness of hard acidic and alkali condition, low electro-polymerizing potential, good stability in air, high mechanical strength, low cost, and great electronic transport, photo-electricity and thermoelectricity properties.

聚吡咯是导电聚合物的典型代表，它具有合成方便、不需要强酸强碱环境、电聚合电位低、空气稳定性好、机械耐受性良好、成本较低、导电性、光电性、热电性较好等优点，是化学修饰电极中研究最多和应用最广的。

Will stimulate the skin and cause itching disease, neurodermatitis.

某些人工合成化学物质，如色素和香料等会刺激皮肤引起瘙痒症、神经性皮炎。

Content Five parts will be given: 1 the relationship of organometallic chemistry and Nobel Prize and its scientific meaning.

课程内容：课程主要内容有：1）金属有机化合物与诺贝尔化学奖的成果的科学意义。2）金属有机试剂在精细有机合成中的应用。

In the direction of the theory of metabolic engineering , principal nodes and their rigidity were judged, and metabolic flux distribution was regulated so as to overproduce FDP by chemical regulative factor.

在代谢工程理论的指导下判断了FDP合成途径中的结点和刚性结点，并用化学调节因子调节代谢流量的分配以超量生产FDP。

N this dissertation, vanadium pentoxide sols were synthesized by melt quenching and polypy...

R和DSC表明化学界面氧化法合成出了热稳定性良好的导电高聚物PPY。

Perceptively on 3d and 5d. Collagen is positive in Western blot on 9d. Aniline dyeing is positive on 12d. The control group was negative. Ad-BMP-2 transferred MSCs cultured in fibrin gel was positive in Aniline dyeing, Immunohistochemical. The therapy effect of group was better in histology, biochemistry and biomechanics in all periods than the other two groups, and was similar to the natural cartilage.

结果 ①Ad-BMP-2转基因MSC BMP-2、CollagenⅡ的PT-PCR分别在3、5d呈阳性，CollagenⅡ的Western Blot 9d为阳性，较对照组有显著差异；②转基因MSC经纤维蛋白体外三维培养后免疫组化和苯胺蓝染色呈阳性，电镜显示细胞生长良好，有基质合成；③转基因修复组各时期大体、组织形态学和组织化学成份均显著优于其它两组，12W时力学和组织学已接近正常关节软骨。

Therefore, N-phosphoamino acids could be used as models in the study of reactions of the phosphoryl group in the life process.First of all, a series of model N-phosphpoamino acids were synthesized. And their ester exchange reaction on the phosphorous center was studied by ~(31)P NMR, HPLC, ESI-MS and ESI-MS/MS.

首先，本论文从氨基酸角度研究磷化学，合成了一系列模型化合物N-磷酰化氨基酸，利用~(31)P NMR技术研究了磷上酯交换反应，发现α-氨基酸对于磷原子存在着手性选择现象，并且这种手性选择的差异随α-氨基酸种类的不同也有所区别。

The piperidine and its ramification selected as raw material to synthesis α-aminonitriles were studied in detail firstly. The oxidation potentials of the amines were determined through the liner sweep voltammetry study.

首先详细研究了以哌啶及其衍生物作为合成原料，通过极化曲线法确定了其氧化电位，并首次发现了氧化电位与1H NMR的化学位移之间的相关性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失