In this thesis, the nickel based mixed oxides aerogel catalyst was prepared by sol-gel-supercritical drying method and compared with that prepared by IM method.

研究新的技術(shù)日韩大学生无码视频，制備高性能的用于順丁烯二酸酐選擇加氫的催化劑是具有理論和實(shí)際應(yīng)用價(jià)值的課題日本黄试看120秒。

Are you prepared to work in any affiliated company of shell Limited or any other country world-wide If not, please indicate where you would not be prepared to work.

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Third, most magnesium alcoholates are prepared by alcoholysis.The process is based on the exchange of alkoxide groups of a metal alcoholate in the presence of an alcohol other than the alcohol corresponding to the original alkoxide,i.e.on the alcoholysis of a metal alkoxide with a different alcohol. Primary alcoholates can be prepared by this process,such as magnesium di-n-propanolate,magnesium di-n-butanolate,magnesium di-isobutanolate.

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Materials and methods: The composite was respectively prepared by blending Lysine, Histidine, Arginine with PLGA, while the composite respectively prepared by blending Algin, chitosan, NaHCO3 with PLGA as the comparison and the pure PLGA as the control. All composites were degradated in tri-distilled-water at 37℃ for 7 weeks. The degradation property of PLGA with the addition of basic additives was investigated by using gross observation, the pH change of degradation solution and the mass loss ration of the composite.

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Objective To set up the quantitative method of amygdalin in decoctions prepared from various combinations of "Maxing Shigan Decoction" by HPLC and to study the changes of amygdalin in eight decoctions Methods Different decoctions were prepared and analyzed by L8 (2^7) orthogonal design, the contents of amygdalin in each decoction was determined by HPLC.

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Among them, 13 have been prepared from structural modification of salpriorthoquinone and salvicine, 4 have been synthesized from ferruginol, and the other 9 have been prepared via total synthesis using anisole as the starting material.

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The soymilk prepared from the treated soybeans is devoid of beany taste and chalky mouthfeel, and has a higher shelf-life than the conventionally prepared soymilk.

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To improve the cyano reactivity, cyano-terminated PPENs were prepared by the end-capping reaction of PPEN-OL with CBN; benzonitrile terminated polys were also prepared by the polycondensation of excess 4,4'-oxydianiline with 1,2-dihydro-2-(4-carboxyphenyl)-4-[4-(4-carboxyphenoxyl)phenyl]-phthalazinone, followed by end-capping with CBA. The polymers synthesized exhibited good solubility in NMP, DMAc and DMF, and were crosslinked to afford phenyl-s-triazine-containing polymers under the similar conditions.

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The result showed that, rutile TiO2 was well consistent with carrier resin, so the prepared masterbatch had glabrous of surface, and application was better than acute TiO2; the masterbatch was prepared by using polymerization PE wax, whose application is better than masterbatch prepared by using other PE wax, such as hiding power of the film, whiteness of the templet; dispersion of TiO2 was uniformity, and application was improved, in particular hiding power and tinctorial power by adding PPA and nanocalcium carbonate in masterbatch.

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The transparent and heat-insulating EVA/antimony-doped tin dioxide interlayers used for laminated glass were prepared by compression molding after adding Nano ATO with transparency and infrared reflection function to the EVA through extrusion blending. The heat-insulation performance of the prepared EVA/ATO interlayers was also characterized, and the effects of Nano-ATO content on the tensile property, the optical property, the thermal stability and the adhesive strength to glass of the prepared EVA/ATO materials were investigated.

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