再制备

The method which is composed of pre-impregnating in soaker, painting coating on the surface of carbon/carbon composite, and solidifying the coating, was first used for the preparation of a good anti-oxidation coating on the composite.

摘 要：采用在C/C复合材料基体表面预先浸涂浸渍剂，再涂刷涂层并进行涂层固化处理的工艺方法，可制备出抗氧化性能良好的涂层。

More than 85% of initial VEGF contents were eat rapped into The VEGF nanoparticles. The result of election micrograph and The size distribution showed that the VEGF nanoparticles acre small spherical or similar spherical vesicles. The mean, diameter of VEGF nanoparticles was 90 nm with the range of 50~150nm, and the drug loading was 42%. The redipersibility of freeze drying powder was very good.

结果：制备了纳米粒胶体溶液及其冻干品：电子透射显微镜下观察纳米粒形态，外形为粒径比较均匀的球状或近球状的纳米粒，平均粒径为90nm，粒径范围为50~150nm；包封率大于85%，载药量约为42%，冻干品的再分散性良好。

Pt-inserted nanotube titanic acid was prepared as follows: H_2PtCl_6 ethanol solution was filled into the titanic acid nanotubes and then annealed in air at 673 K for 3 h.X-ray photoelectron spectroscopy showed that H_2PtCl_6 has been converted to Pt~0 and PtO.The result of electron spin resonance revealed that there are single-electron-trapped oxygen vacancies to be formed in PNTA after heat treatment in air.

通过在真空条件下将氯铂酸的乙醇溶液引入到钛酸纳米管内，再经过热处理制备了镶嵌铂的纳米管钛酸。X射线光电子能谱表明氯铂酸大部分转变成Pt0和PtO，顺磁共振谱表明在PNTA中生成了束缚单电子的氧空位，在紫外-可见扩散漫散射谱谱上表现出对可见光有吸收能力。

The preparation method of the photocatalysis functional ceramics was as follows: firstly, to prepare the titanic acid sol and the titanic acid sol mixing iron ion; then, to load the soil in the stoneware tube and the honeycomb ceramics by the sol-gel technology; finally, to roast the product by the program heating.

先制备钛酸溶胶和掺入Fe3+的钛酸溶胶；用溶胶-凝胶法分别将它们负载于炻器管和矩形蜂窝陶体上；再用程序升温法煅烧，得到纳米TiO2光催化功能陶瓷。

Six lateral difluorine substituted tolan -type liquid crystals were synthesized via Sonogashira cross-coupling of 4-alkylphenylacetylene and 4-iodo-2,3-difluoro-1-alkoxybenzene under the protection of argon.

用邻二氟苯为起始原料，在-78℃经过两次选择性"邻位金属化"反应、醚化反应、氧化反应制得2，3-二氟-4-碘-1-烷氧基苯，再与4-烷基苯乙炔在氩气保护下进行Sonogash ira偶联反应，制备出6种侧向二氟取代二苯乙炔类液晶。

This paper deals with a cationic bisamide compound system deinking agent whose intermediate was prepared by using tristearin, isopropylidene glycerol, diethylenetriamine and catalyzed by p-Toluene sulfonic acid and reacted at 140℃ for 2 h.

摘 要：以三硬脂酸甘油酯、二乙烯三胺为原料合成了中间体，经硫酸二甲酯阳离子化制备出双酰胺季铵盐阳离子表面活性剂，再与AEO-9、TX-10复配制得复合脱墨剂。

Methods One hundred and eight Sprague-Dawley rats were divided into three troops: the troop of flaps, the troop of grafts and the troop of fat with thirty six of each.

将带有PCD-VEGF165的大肠杆菌接种到LB培养基中，通过碱分裂法制备PCD-VEGF165质粒，再用反蒸发法将质粒包埋于脂质体中。

Its preparation process includes the first fermentation of glutinous rice, yeast and Chinese medicine powder of 19 kinds of Chinese medicinal materials including Chuanxiong rhizome, licorice, pricklyash, eucommia bark, tuckahoe, etc.

本发明主要是以糯米和药曲入缸同时加入川芎、甘草、花椒、杜仲、伏苓、桃杜、山奈等19味中药制备的粉，进行一次发酵，15天后，再加配比的水、药曲、药粉进行二次发酵。

W - doped vanadium dioxide film was prepared by dipping V - W commixed sol on surface of glass slide and reducing in hydrogen atmosphere.

采用钒-钨混合溶胶及浸渍提拉法在玻璃基片上涂五氧化二钒膜，再通过氢还原法制备掺钨二氧化钒薄膜。

Effects of alkali concentration, extraction temperature, ratio of solid to liquid and extraction time on yields of xylan were analyzed.

以稻壳为原料，采用制备综纤维素再碱提取的方法，分析了不同碱溶液浓度、温度、固液比和时间对稻壳半纤维素中多戊糖得率的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐