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文章以湖南化工职业技术学院应用化工生产技术专业基于工学结合的核心专业课程——高职《聚氯乙烯生产技术》课程开发为例阐述了基于工学结合课程开发的具体内容,包括分析岗位群,确定专业课程、制订课程标准、课业内容和教材编写、课程配套数字化建设,以及教材修订与使用效果反馈等五个方面。 相似文献
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GMP课程是高职制药类专业培养学生药品生产质量管理能力的重要课程,本文通过分析GMP课程教学中存在的问题,从教学方法、实训基地建设及师资水平三个方面的改革探索与实践进行了阐述,以期对高职GMP课程教学质量的提高有所启示和帮助。 相似文献
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高职院校专业文化建设是高职校园文化建设的核心,是专业建设的灵魂和推动专业建设的重要力量。首先从专业群文化建设的现状进行分析,然后从石油化工专业群专业文化建设的实践进行探讨。石化类高职院校应当构建石化专业群物质文化、制度文化、行为文化和精神文化,最终打造富有石化特色的高职校园文化。 相似文献
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在高等职业教育教学改革中,专业核心课程建设是专业课程建设的重点,对其他课程的建设起着引领与示范作用。本文针对高职专业核心课程开发建设与实施进行了探讨,形成了具有可操作性的专业核心课程开发与建设的流程及课程实施流程,对于全面提高教育教学质量具有一定的借鉴意义。 相似文献
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Dinesh Singh J. K. Gehlawat Musti S. Rao 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》1990,47(2):127-136
Oslefins and diolefins are important intermediates in the petrochemical industry and the future promises a further substantial increase in demand. While several catalysts have been formulated in the past for the abstraction of hydrogen from butenes and propylene, these catalysts are inefficient in the abstraction of first hydrogen from butane. Bismuth molybdates (β and γ-phases) containing iron oxide and supported on alumina are used as catalysts in the present investigation on the oxidative dehydrogenation of n-butane. Effects of catalyst content, temperature and oxygen: n-butane ratio on conversion and selectivity to butadiene and (C4H8 + C4H6) are studied in the following ranges of experimental conditions: β-bismuth molybdate/100 mol support I(K), 3–9; γ-bismuth molybdate/100 mol support I(K), 5-20; temperature, 400–500°C; O2: butane ratio, 0.6:1.7. 相似文献
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考登钢作为一种高耐候结构钢,广泛应用于各个领域。在火力发电方面,考登钢主要应用在工作环境比较恶劣的烟气加热器和空气预热器中。考登钢表面涂搪的目的就是进一步提高其耐腐蚀性能,延长使用寿命。为了提高考登钢元件的使用寿命,对考登钢表面涂搪瓷的可行性、密着性能、瓷釉、工艺控制、质量保证等方面进行了研究。 相似文献
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A viscometer used to measure the viscosity of 10 μl of a liquid, must be miniaturized down, and the liquid velocity gradient in the channel used to determine the viscosity coefficient. Two major factors that affect the liquid velocity are the mechanical forces exerted by the mechanical motors and electromagnetic forces. In this study, electrowetting on dielectric (EWOD) is adopted to drive liquids. Variously sized electrodes on a chip, and two shapes of channel are employed to measure the velocity gradient to determine the viscosity coefficient. The device is fabricated by microelectromechanical system (MEMS) technology. The dielectric layer used in EWOD has a high dielectric constant, BST (Ba0.7Sr0.3TiO3), to reduce the required applied voltage; its surface is coated with hydrophobic polymer, polytetrafluoro-ethylene (PTFE, Teflon® AF DuPont). Experimental results demonstrate that liquids can be pulled at 660 μm/s in linear channels by applying a voltage of 15 V. 相似文献
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In reexamining medium effects on photochemical reactions, we have emphasized those on unequilibrated excited species such as the Franck-Condon species. Despite recent advances in femtochemistry, such a discussion in molecular photochemistry is uncommon, and the problem remains challenging on account of the extremely short-lived excited species. However, in such cases, a small perturbation resulting from, for example, weak guest-host interactions could turn into a determining factor in dictating the course of a photochemical channel of deactivation. Examples of medium-directed diabatic processes have been examined with this idea in mind. A modified view on rhodopsin photoisomerization is presented along with the consideration that confinement does not necessarily lead to inhibition of reactions of the trapped substrate. 相似文献
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研究了温度和pH值对漆酶酶活以及漆酶处理纤维压制纤维板性能的影响。结果表明,pH较低、温度较高时漆酶酶活较高,压制的纤维板强度性能较好。但温度太高(60~80℃),延长加热时间,漆酶稳定性变差,酶活明显降低,压制纤维板的强度下降。 相似文献
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探讨了株化集团在企业管理及改革等方面的经验。该公司为适应市场经济的变革制订了科学的发展规划、思路和目标;确定了目标管理实施方案和各项制度;强化销售工作和质量管理,加大科技投入,加强科技创新活动;理顺各种关系,做好各项有关工作,使企业的经济效益和对社会的贡献逐年增大。 相似文献