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特困生问题是社会中一个敏感的话题，涉夏到社会的千家万户、方方面面，影响面较广。为保证经济困难学生顺利完成学业，国家实施了一系列资助政策。但由于各种原因，目前高校特困生资助工作还存在一些问题，需要转变观念和方式，进一步完善资助经济困难学生的体系。 相似文献
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2010年12月17日,2010年全区科技信息（情报）工作研讨会暨内蒙古自治区科技情报学会第八次会员代表大会在呼和浩特市内蒙古科技大厦隆重召开。内蒙古自治区科学技术协会副主席陈天保、内蒙古自治区科学技术厅副巡视员李增建到会祝贺并讲话, 相似文献
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The extractive reaction process of oxygen-working solution-water three-phase system for the production of hydrogen peroxide by the anthraquinone method was investigated in a sieve plate column of 50 mm in internal diameter. The oxidation reaction of anthrahydroquinone in the working solution with oxygen and the extraction of hydrogen peroxide from the working solution into aqueous phase occurred simultaneously in the countercurrent mode. The agitating effect caused by gaseous phase made the droplets of the dispersed phase become smaller, thus, increasing the liquid-liquid interfacial contact areas and resulting in the improvement of the mass transfer velocity. Results showed that the gas-agitation had a beneficial effect on the extraction of hydrogen peroxide from the working solution into the aqueous phase： the concentration of hydrogen peroxide in the raffinate decreased with the increase of the gaseous superficial velocities： and the concentration of H2O2 in the raffinate increased with the increase of the dispersed phase superficial velocity at the same superficial velocity of the gaseous phase. In the G-L-L extractive reaction process, with the increase of the gaseous superficial velocities, both the conversion of the anthrahydroquinone oxidation and the extraction efficiency of hydrogen peroxide first increased significantly, then increased gradually. 相似文献
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