共查询到20条相似文献,搜索用时 171 毫秒
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文章针对功能高分子材料与化学课程教学,提出了精练课程内容与多媒体教学相结合的教学模式,来缓解教学内容多与学时少之间的矛盾,能让学生通过本课程的学习,了解高分子材料的前沿知识,并达到传输基本知识的目的。并且讨论了培养学生实验能力和启发学生创新性思维,优化课程考核体系,提高学生能动性对课程教学质量以及培养学生获得知识、运用... 相似文献
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校企结合对化工原理课程设计教学改革的尝试 总被引:3,自引:0,他引:3
为调动学生的学习兴趣,培养其解决实际问题能力和创新能力,我们对化工原理课程设计中的选题及方式作了改进,即设计题目到生产实际中去,要具有先进性和实用性;制定出与以往不同的切实可行的指导方法;考核方式也作了改进,并提出了改进的具体措施。 相似文献
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Evacuation experiments in a virtual reality high‐rise building: exit choice and waiting time for evacuation elevators 下载免费PDF全文
The egress strategy in high‐rise buildings has traditionally been based on the sole use of stairs for evacuation. However, it is becoming more common to include evacuation elevators in the egress strategy in high‐rise buildings. Traditionally, evacuation elevators have not been allowed as an evacuation route, and people have been instructed to not use elevators in case of fire. This means that people might still not consider evacuation elevators even if they are designed to be safe in case of fire. Even if people choose evacuation elevators, they might not be willing to wait very long for an elevator to arrive. Virtual reality (VR) experiments were conducted to study exit choice and the waiting time for evacuation elevators in high‐rise buildings. The experiment was performed in a VR lab with a VR model of an existing high‐rise building. Results suggest that a simple way‐finding system using green flashing lights can influence people to more likely choose the elevator as their first evacuation choice. The results also show that the general trend is that people wait for either a limited time (<5 min) or a long time (>20 min). Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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近年来,随着社会的不断发展以及教育事业的不断变革,化学实验在化学教育中所占的比重越来越大。业界人士不再仅仅关注对学生理论知识的教育,他们更大程度上关注在教学中的实践问题,及在化学教学中引入了大量的化学实验,采取实验教学的方法,激发学生学习化学的兴趣、学习的主动性、创新能力和实践能力等。为寻求完善化学实验教学方法,促进化学教学质量不断提高。国家越来越重视化学实验教学资源的开发与利用,旨在让教师和学生对化学实验更加重视,促进化学教育的有效进行,提高课堂效率。 相似文献
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I.S. Metcalfe 《化学工程与技术》2003,26(8):857-862
Membrane reactors are of great interest in the chemical industries because they offer the possibility of improved yields, improved selectivities and more compact plant. However, a significant barrier to their uptake is the unavailability of membrane systems having the required performance at an acceptable cost. In this paper we will explore the use of one class of membrane that has the potential to deliver high performance at reasonable cost. Ion‐conducting ceramic membranes can be used in a wide range of high temperature applications including fuel cells, advanced reactors and even smart catalytic systems. 相似文献
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Kyung Taek Oh Hye Jung Baik A Hyeong Lee Young Taik Oh Yu Seok Youn Eun Seong Lee 《International journal of molecular sciences》2009,10(9):3776-3792
Medical applications of nanoparticular systems have attracted considerable attention because of their potential use in therapeutic targeting of disease tissues and their lower level of toxicity against healthy tissue, relative to traditional pharmaceutical drugs. The use of nanoparticular systems has been shown to overcome the limitations of most anticancer drugs in clinical applications. In particular, the improved performance of smarted nanoparticular system for solving the drug resistance problems that typically interrupt tumor treatment has provided a promising strategy for successful tumor chemotherapy. This review highlights recent studies that have examined the therapeutic effect of nanoparticular systems on drug-resistant tumors and presents insight on how they work. 相似文献