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从化工专业特点与湘西武陵山区企业实际情况出发,通过校企合作建设实践教学基地、改革综合化学实验内容、开放实验项目、指导毕业论文(设计)等培养化学专业本科生综合能力。 相似文献
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目前高职化工专业课程教学改革势在必行,而职业技能大赛作为职业教育的风向标,必对化工专业建设、课程改革、实践教学资源建设及教学团队建设产生很好的导向和促进作用。结合化学实验技术赛项,主要从课程改革实施路径、课程改革成效等方面探索“赛教融合”视域下的化工专业高素质技术技能人才培养路径,以达到提高课堂教学质量和服务社会的目标。 相似文献
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化学实验贯穿应用化学专业及相关化工专业的整个本科阶段,如何提高大学生的实验素养是急需解决的问题。简要介绍了高校化学实验教学的现状,罗列了相关问题,并由此萌发了对创新教育的思考和实验教学方法改革的探索。 相似文献
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实践性教学环节是高校工科专业人才培养的重要组成部分,本文总结了化学工程与工艺专业在基础化学实验、化工专业实验、化工仿真实训、生产实习、毕业设计(论文)和参加学科竞赛等实践性教学环节的改革与探索。通过几年来实践表明,实践性教学的改革教学效果显著。不仅能顺利完成人才培养方案对学生实践能力培养的要求,还能进一步提升学生的工程实践能力。 相似文献
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"新工科建设"是基于全球范围内产业革新升级和经济发展模式转变所提出的针对性教育方针.以化学原理、分子化学、材料化学等为代表的重点且热门的化工课程,在化工产业发展模式发生转变之际,迫切需要创新改革教学理念、调整课程教学模式,将新工科建设对化工专业教学的改革要求具体落实.在新工科建设教育目标引领下,高校化工专业要积极贯彻"... 相似文献
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Solid solutions of diphosphates of zinc and copper and of zinc and cobalt were synthesized from mixtures of pure diphosphates at temperatures up to 1000°C. Their X-ray diffractometry patterns varied continuously from one end member to the other. Solid solutions of orthophosphates of composition Zn3−x Cox(PO4 )2, with x = 0.4–1.6, were formed at temperatures up to 950°C; all exhibited the structure of γ-Zn3 (PO4 )2. Solid solutions of orthophosphates of composition Zn3−x Cux (PO4 )2 exhibited more-complex behavior. At 1000°C and copper contents of 20–80 mol%, a phase that is related to Cu3 (PO4 )2, termed here the "ε-phase," predominated. At 850°–950°C and in the region from 20 mol% to ∼33 mol% of copper, the solid solutions (the "η-phase") adopted the structure of graftonite. At 800°–900°C and 10–15 mol% of copper, the solid solutions exhibited a new structure (the "δ-phase"), which we found to be related to the mineral sarcopside. At temperatures 950°C, the solutions that contained 5–15 mol% of copper (the "β-phase") had the structure of β-Zn3 (PO4 )2, whereas at 800°–850°C, solutions with 5 mol% of copper (the "-phase") exhibited the structure of γ-Zn3 (PO4 )2. Attempts to synthesize Cu+ ZnPO4 and Cu+ Cu2+ Zn3 (PO4 )3 were unsuccessful. 相似文献
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为了提高油田的生产效率,设计最佳的油气集输处理的工艺流程,更好地完成油气水分离处理的任务。对油气集输工艺技术进行优化,发挥高效油气水分离处理设备的优势,提高油气水处理的质量,保证油气集输工艺顺利实施,获得最佳的油田产量外输。 相似文献
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建设创新型国家是我们中华民族的历史责任。“自主创新、重点突破、支撑发展、引领未来”的16字方针应当成为我们未来创新活动的指南。建设创新型国家把自主创新放在首位,并提出了引领未来的高标准要求。钢铁科技创新必须突出重点,抓住创新成果产业化这个关键,支撑起行业和国民经济的发展。 相似文献
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相比已经完善丰富的开采和勘探技术,油气的运输以及储存却仍然存在不足之处。我国对能源安全提出更加严格要求的同时,对区域经济的发展规划也有足够重视。因此,保障油气管道的安全则成为了我国能源安全战略的重中之重。在阐释油气管道现阶段在储运安全保障技术发展状况的基础上,分析了现存的问题及解决问题的手段,并指出未来可能使用的目标策略,为今后研究者提供一定程度上的借鉴经验。 相似文献
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膜的污染和劣化及其防治对策 总被引:25,自引:0,他引:25
较为系统地介绍了膜污染和劣化的定义和特点,因膜污染和劣化而造成的膜性能变化,以及如何预防、减少或清除膜污染和劣化的一些通用方法。 相似文献
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James L. White David G. Salladay David O. Quisenberry Donald L. MacLean 《应用聚合物科学杂志》1972,16(11):2811-2827
Gel permeation chromatographic (GPC) and thin-layer chromatographic (TLC) studies of polystyrene, polybutadienes (BR), and their copolymers (SBR) have been carried out. GPC primarily separates them on the basis of molecular size, and TLC, on the basis of composition. Methods of obtaining absolute molecular weight distributions for BR and SBR based upon variations of the Strasbourg Universal Calibration procedure are described. In particular, [η]–M relationships in both the GPC solvent (THF) and in a second solvent (toluene) were used; in addition, results of statistical mechanical calculations for \documentclass{article}\pagestyle{empty}\begin{document}$\overline {s^2 }$\end{document} (based on the assumption of negligible steric hindrance and freely rotating bonds) were applied. An experimental comparison of these methods was carried out, and use of the [η]–M relationships for both solvents was found to give satisfactory results. The predictions of the statistical theory were too low. A detailed study of polymer–solvent–gel interaction in the GPC unit was made through investigation of ternary phase equilibrium in the (polystyrene)–THF–(polymer) system. The polymers studied included BR and SBR with varying styrene contents. Experimental techniques for TLC separations of BR, SBR, and polystyrene according to the composition are described. 相似文献