浅谈独立学院化工专业学生计算机应用能力的培养

随着计算机在化工领域中越来越广泛的应用,培养化工专业尤其是独立学院化工专业学生的计算机应用能力迫在眉睫。我系通过将原有的课程进行调整优化,并增设一系列计算机应用课程,同时与周边化工企业建立产学研合作平台,建立起一套贯穿计算机应用的系列课程,将计算机应用内容融入了学生整个四年的学习过程,从而逐步提高了学生应用计算机技术的能力。     

高酰基结冷胶在食品饮料中的应用研究

高酰基结冷胶的研究在国内逐步深入,应用优越性逐步被人们所认识,综合研究内容和行业信息,主要介绍了高酰基结冷胶的基本应用范围和应用效果的优越性,简要分析目前行业的研究和应用情况,为高酰基结冷胶的应用推广提供参考依据。     

石化企业企业资源计划实施策略分析

介绍了石化企业企业资源计划(ERP)实施特点，并对ERP实施策略进行了分析，最后就如何在石化企业中实施好ERP提出了自己的建议。     

蒸发式冷凝冷却设备的研究状况及其应用前景分析

对蒸发式冷凝冷却设备的特点、国内外的研究状况和国内生产应用状况进行了介绍;对应用中存在的问题进行了分析,对蒸发式冷凝冷却器的应用前景进行了展望。分析表明该节能型产品在国内应用前景广阔。     

水性涂料在汽车涂装中的应用

概述了国内外水性涂料的发展、应用概况。介绍了水性涂料的施工设备、施工条件和施工实例。认为在水性涂料推广应用的同时,对涂料价格、施工工艺、设备投资等方面应有创新和突破。     

从环氧自流平地坪涂料的施工探讨其配方设计

阐述了环氧自流平地坪涂料独特的施工温度、施工方式、施工要点等施工情况对自流平涂料配方设计的要求,并按其组成从树脂、固化剂、稀释剂、颜填料、助剂等方面系统地分析了相应的解决方法。     

Effect of Different Application Techniques of All-in-One Adhesives on Microtensile Bond Strength to Sound and Caries-Affected Dentin

The aim of this study was to evaluate the microtensile bond strength of two all-in-one self-etch adhesives applied to sound and caries-affected dentin with four different application techniques. Forty extracted third molars with occlusal caries were randomly divided into four groups for G-Aenial Bond and S3 Bond: (1) according to manufacturer's instructions; (2) with acid etching before applying adhesives; (3) doubling adhesive application time; and (4) doubling adhesive coating. Teeth were sectioned to obtain 1-mm- ± 0.2-mm-thick dentin sticks and subjected to a tensile force. For G-Aenial Bond, doubling the time and application of two consecutive coats produced significantly higher strength than that obtained by following manufacturers' instructions and acid etching application to sound dentin. Prior acid etching and application of two consecutive coats to caries-affected dentin generated significantly higher bond strength than that using other techniques. For S3 Bond, there was no significant difference between application techniques in caries-affected dentin. For sound dentin, double-time application of S3 Bond produced significantly higher strength than application according to the manufacturers' instructions. Compared to the application according to manufacturer's instructions, acid etching before applying adhesives, doubling application time, and doubling the coating had a positive effect on bond strength to caries-affected dentin for all-in-one adhesives.     

Nitrification and nitrate movement from ammonium sulphate and urea in sandy soils as affected by their previous applications

Two successive applications of urea and ammonium sulphate (AS) at varying intervals were given in two soils, one of which was salt affected. The nitrification and nitrate leaching after both the applications of fertilizers was studied. The nitrification of first application of AS was faster than urea on both soils. However, the nitrification rate of both fertilizers was slow in salt effected soil. The same trend of results was observed with second application of fertilizers. However, the nitrification of second application given within 6 weeks of the first application proceeded at a much faster rate than that of the first application. The amount of NO ₃ ^- that moved down with periodic water application was related with nitrification rate and the amount of fertilizer nitrified at the time of water application.     

我国农药专利申请概况

为全面了解国内外农药专利申请的数量与技术分布状况,分析研究国内外的农药专利申请热点,对1986～2008年中国专利文献检索系统中的农药技术领域专利申请进行了统计分析.结果表明,(1)从农药专利的申请人来看,国内的大学及科研院所和个人申请的比例相对较高,公司企业申请的比例较低;(2)在化学农药领域,国内的专利申请量略低于国外,且国内申请人的创新能力有待提高;(3)在生物农药领域,国内的专利申请量占绝对优势,但代表先进技术的转基因生物农药的研发水平不高.     

粉煤灰在卫生填埋场中的利用现状

总结了粉煤灰在卫生填埋场中的几种现有的利用方式,包括粉煤灰在垃圾填埋场黏土防渗层体系中的应用、粉煤灰对生物反应堆的强化和其在自封自修防渗层中的应用,并对粉煤灰在卫生填埋场工艺中应用的发展趋势进行了展望.