应用化学

A satisfactory result was obtained,the correlation coefficient of the built model based on Leave-one-out Cross-validation were 0.990 0 and 0.986 7,respectively.This model is tested by 13C NMR chemical shift of three terpenoid compounds and the excellent result with correlation coefficients R =0.977 7 was obtained.

而C原子是组成有机化合物分子骨架的重要元素，其NMR谱包含了与该分子量子化学性质直接相关的信息[2]，因此，NMR谱被广泛应用于对有机化合物结构的鉴定[3-4]、动态过程和平衡及水溶液中蛋白质三维结构的研究(见2002年诺贝尔化学奖得主维特里希的成果)。

After a reaction time of about 100 min at room temperature, the silica sol was transformed into solgel, which was dried by supercritical drying technique to obtain woodnano-SiO2 aerogel. The chemical structure of wood-nano-SiO2 aerogels were studied by Fourier Transformation Infrared Spectroscopy.

应用FTIR方法对上述溶胶-凝胶法木材-SiO2气凝胶复合材料的结构进行了表征，结果表明，复合材料的FTIR特征基本上是由木材与SiO2气凝胶谱图加合而产生的，没有得到木材与SiO2气凝胶产生化学结合的明确证据，但是观察到气凝胶中Si-OH结构信息（844cm^-1）；部分木材-SiO2气凝胶复合材料试样中1735cm。

Methods Scarfskins sheared from four different animal's skin were made into specimens, and then treated with α-MSH under the technique of immunohistochemical staining.

方法］对4组不同正常实验动物的表皮标本进行组织切片，应用免疫组织化学技术，观察α-MSH在4组不同实验动物表皮中的表达。

In order to reveal the nature of reducibility of organic compounds and find theoretical basis for the selection of organic reductants, the electronic structure of studied organic reductants and related organic compounds has been calculated by means of HMO method、CNDO/2 method in quantum chemistry. It was discovered that the energy of the highest occupied molecular orbital of organic compounds has best correlation with their reducibility, and theoretical criterion for reducibility of organic compounds was presented.

为了揭示有机化合物还原性的本质，为有机还原剂的寻找提供理论依据，应用量子化学HMO法、CNDO/2法计算分析了研究的有机还原剂及相关有机化合物的电子结构特性，发现有机化合物的最高占据分子轨道HOMO能量与其还原性之间具有最好的相关性，据此提出了有机化合物还原性的理论判据。

Then chemical oxygen demand and total phosphorus were determinated by nano-semiconductor oxide photocatalytic method.

其次，将纳米半导体光催化氧化体系用于化学需氧量和总磷的测定，进行了有关理论探讨和实际应用的研究，取得了满意的结果。

Filtration, electrostatic colletion, chemical catalysis, ozone treatment and anion adsorption were all tried in application during the technical development. However, current techniques have the problems of relatively low purification rate, high costs, ect. So the reachers both here and abroad are now studying on the advanced purification methods like plasma and photo-catalysis techniques.

其中所用空气净化技术在经历了过滤、静电收尘、化学催化、臭氧或负离子等发展至今，现有技术在应用中存在净化效果不佳、价格昂贵等问题，国内外正致力研究先进的室内空气污染治理方法，如：等离子体技术和光催化技术等。

The tubing fabric ,the anti-seepage film and the resin and the composite technology are introduced,and the different application performance of the tubing plain weave,tubing weft pile weave and tubing warp knitting is analyzed.

阐述了管状织物、防渗膜及树脂材料的选择及其复合工艺，分析了管状平纹织物、管状纬起绒织物和管状经编针织物的不同应用性能，也对管状纺织复合材料进行了物理性能与耐化学腐蚀性能测试。

Objective To evaluate the clinical application significance of digestive tract bleeding detection by combined immunoassay of transferrin/hemoglobin and pyramidon chemical method.

目的 评价转铁蛋白/血红蛋白联合免疫法和匹拉米洞化学法在检测消化道出血中的临床应用价值。

This paper reviewed the polyphasic taxonomy of acetic acid bacteria, mainly introduced the current classification of acetic acid bacteria, then discussed the application of phenotypic, chemotaxonomic and genotypic method in the taxonomy of acetic acid bacteria.

本文综述了醋酸菌的多相分类研究进展，主要介绍了醋酸菌的现行分类情况及表型分类、化学分类和基因分型等方法在醋酸菌分类中的应用。

Methods By using immunohistochemical PV 6000 method, the expressions of Cx43 and E-cad in 47 cases of pancreatic cancer and 10 normal pancreases were detected and analysed.

应用免疫组织化学PV6000法检测Cx43和E-cad在47例胰腺癌和10例正常胰腺组织中的表达和定位，并进行相关性分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。