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两栖轿车
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作者 桓金国 《中国科技教育》 2004年第3期42-46,共5页
两栖轿车是2003年世界最火爆的发明之一,它由英国吉布斯技术设计公司研制,它既可行驶于陆地,又可行驶于水中。在陆地行驶时其正常行驶速度可达时速160公里;在水中则时速为50公里。该轿车还装备传感器,即使最笨的驾驶者也可以随心... 两栖轿车是2003年世界最火爆的发明之一,它由英国吉布斯技术设计公司研制,它既可行驶于陆地,又可行驶于水中。在陆地行驶时其正常行驶速度可达时速160公里;在水中则时速为50公里。该轿车还装备传感器,即使最笨的驾驶者也可以随心所欲地驾驶,估计价格为每辆25万美元。 展开更多
关键词 两栖轿车 自控换相开关 制作技术 航模 结构组装图 第二课堂活动
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Self-assembly and chemical processing of block copolymers:A roadmap towards a diverse array of block copolymer nanostructures 被引量:3
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作者 WYMAN Ian LIU GuoJun 《Science China Chemistry》 SCIE EI CAS 2013年第8期1040-1066,共27页
Block copolymers can yield a diverse array of nanostructures.Their assembly structures are influenced by their inherent structures,and the wide variety of structures that can be prepared especially becomes apparent wh... Block copolymers can yield a diverse array of nanostructures.Their assembly structures are influenced by their inherent structures,and the wide variety of structures that can be prepared especially becomes apparent when one considers the number of routes available to prepare block copolymer assemblies.Some examples include self-assembly,directed assembly,coupling,as well as hierarchical assembly,which can yield assemblies having even higher structural order.These assembly routes can also be complemented by processing techniques such as selective crosslinking and etching,the former technique leading to permanent structures,the latter towards sculpted and the combination of the two towards permanent sculpted structures.The combination of these pathways provides extremely versatile routes towards an exciting variety of architectures.This review will attempt to highlight destinations reached by LIU Guojun and coworkers following these pathways. 展开更多
关键词 block copolymers SELF-ASSEMBLY chemical processing CROSSLINKING
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