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蜂王交配及蜂王受精囊的简明剖视 第二部分 蜂群是高级有机体
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作者 吕效吾 《中国养蜂》 2003年第6期40-41,共2页
关键词 蜜蜂 蜂王 交配 受精囊 蜂群 有机体 精子贮藏 精子利用
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Selective removal technology using chemical etching and excimer assistance in precision recycle of color filter 被引量:1
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作者 Pai-shan PA 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第A01期210-214,共5页
Color filters are produced using semiconductor production techniques although problems with low yield remain to be addressed. This study presents a new means of selective removal using excimer irradiation, chemical et... Color filters are produced using semiconductor production techniques although problems with low yield remain to be addressed. This study presents a new means of selective removal using excimer irradiation, chemical etching, or electrochemical machining on the fifth generation TFT LCDs. The selective removal of microstructure layers from the color filter surface of an optoelectronic flat panel display, as well as complete removal of the ITO thin-films, RGB layer, or resin black matrix (BM) layer from the substrate is possible. Individual defective film layers can be removed, or all films down to the Cr layer or bare glass can be completely eliminated. Experimental results demonstrate that defective ITO thin-films, RGB layers, or the resin BM layer can now be recycled with a great precision. When the ITO or RGB layer proves difficult to remove, excimer light can be used to help with removal. During this recycling process, the use of 225 nm excimer irradiation before chemical etching, or electrochemical machining, makes removal of stubborn film residues easy, effectively improving the quality of recycled color filters and reducing fabrication cost. 展开更多
关键词 chemical etching excimer light selective removal technology display color filter
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Atomically dispersed Au_1 catalyst towards efficient electrochemical synthesis of ammonia 被引量:25
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作者 Xiaoqian Wang Wenyu Wang +13 位作者 Man Qiao Geng Wu Wenxing Chen Tongwei Yuan Qian Xu Min Chen Yan Zhang Xin Wang Jing Wang Jingjie Ge Xun Hong Yafei Li Yuen Wu Yadong Li 《Science Bulletin》 SCIE EI CSCD 2018年第19期1246-1253,共8页
Tremendous efforts have been devoted to explore energy-efficient strategies of ammonia synthesis to replace Haber-Bosch process which accounts for 1.4% of the annual energy consumption. In this study, atomically dispe... Tremendous efforts have been devoted to explore energy-efficient strategies of ammonia synthesis to replace Haber-Bosch process which accounts for 1.4% of the annual energy consumption. In this study, atomically dispersed Au_1 catalyst is synthesized and applied in electrochemical synthesis of ammonia under ambient conditions. A high NH+4 Faradaic efficiency of 11.1 % achieved by our Au_1 catalyst surpasses most of reported catalysts under comparable conditions. Benefiting from efficient atom utilization, an NH+4 yield rate of 1,305 μg h-1 mg-1Au has been reached, which is roughly 22.5 times as high as that by sup- ported Au nanoparticles. We also demonstrate that by employing our Au_1 catalyst, NH+4 can be electro- chemically produced directly from N_2 and H_2 with an energy utilization rate of 4.02 mmol kJ-1. Our study provides a possibility of replacing the Haber-Bosch process with environmentally benign and energy-efficient electrochemical strategies. 展开更多
关键词 NH_3 synthesis Metal single sites ELECTROCATALYSIS Haber-Bosch process Nitrogen reduction
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