共查询到20条相似文献,搜索用时 78 毫秒
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教材是教学改革的重要载体和课程实施的必备工具,同时也是课程建设、专业建设和人才培养模式创新的重要支撑,是提高教学质量的基础保障。结合我院的教学改革,对高职化工工艺类课程教材的现状进行了分析,并对"化工生产技术"理实一体化教材的开发与建设的必要性和意义、开发与建设的思路、教材体现的特色等方面进行了阐述,努力在"化工生产技术"课程改革中开发及建设满足教学改革和发展需要的理实一体化教材。 相似文献
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"无机及分析化学"课程是高等职业院校化工类专业的专业基础课程。作为专业核心课程,其教学改革工作一直都备受关注。文章从课程的特性、思维方式、基本理论的教学等方面对课程整合的教学改革实践进行反思,提出了项目化与模块化相结合的课程教学设计思路。 相似文献
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以普通应用型二本少学时教学改革为背景,为解决教学任务重与学时少的问题,对现有的课程内容进行取舍,将现有课程整合成工程制图和化工图样两大部分,融入计算机绘图部分,理论知识与计算机绘图将结合,整合以后的内容更适合化工专业的教与学。采用"N+2"的考核方式,使学生对掌握工程制图基础知识和化工图样都有更深的了解。努力与实现应用型人才培养的目标相符。 相似文献
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高职院校贯彻双证书制度,有利于提高学校的办学质量,体现以"就业为导向"的技能型人才培养思路,增强高职院校毕业生的就业竞争力。文章就高职院校应用化工技术专业推行双证书制度,在课程模块化设置、对证施教以及"双师型"教师队伍和学生实训基地建设等方面进行了探讨,并取得了一定的效果。 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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D. G. Gordeev L. F. Gudarenko M. V. Zhernokletov V. G. Kudel’kin M. A. Mochalov 《Combustion, Explosion, and Shock Waves》2008,44(2):177-189
A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation
of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from
the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO2) of density 0.08 g/cm3.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008. 相似文献
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Jorge Marcelo Romero Soledad Bustillo Hugo Enrique Ramirez Maisuls Nelly Lidia Jorge Manuel Eduardo Gómez Vara Eduardo Alberto Castro Alicia H. Jubert 《International journal of molecular sciences》2007,8(7):688-694
A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out. 相似文献
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A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%. 相似文献
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醋酸纤维素取代基分布与性质的关系 总被引:9,自引:0,他引:9
分析了以吡啶为溶剂的醋酸纤维素的13C-NMR核磁共振谱,得出了三种不同位置羟基的取代度。结合X—射线和DSC分析,初步说明具有相同取代度但未经水解和经过水解的醋酸纤维素(CA) 性质上的差异是由于三个羟基上的取代度分布不同及消晶程度差异所致。 相似文献