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Study on the Characteristics of Competition in Sichuan Tea Industry
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作者 guoxian yang Xiumin WU Junzan WU 《Asian Agricultural Research》 2013年第5期47-49,共3页
Nowadays, there is huge potential in the domestic sales and export of tea in China. However, the tea leaf products are less competitive in the international market because of the lack of brand. Sichuan Province as a p... Nowadays, there is huge potential in the domestic sales and export of tea in China. However, the tea leaf products are less competitive in the international market because of the lack of brand. Sichuan Province as a province with large amount of tea leaves, characteristics of tea leaf industry in Sichuan Province were analyzed from three aspects, namely fundamental industrial characteristics, the competition strategy of a company and main competition measures. The tea industry in Sichuan Province was featured by its large amount of companies and low industrial concentration. The competition among tea companies often uses the strategy of different brands and low cost. The major way to compete was to build tea brand and to publicize the tea culture. Organic green tea was the main issue. Electronic business platform was applied. Study on the competition characteristics of tea industry in Sichuan can improve the regional competitiveness of tea industry and can make contribution to the entire tea industry in China. 展开更多
关键词 TEA INDUSTRY COMPETITION CHARACTERISTICS REGIONAL
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基于三苯胺的荧光探针设计、合成与应用研究进展 被引量:9
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作者 陈思鸿 陈淇 +4 位作者 罗时荷 曹西颖 杨国贤 曾晓晴 汪朝阳 《有机化学》 SCIE CAS CSCD 北大核心 2021年第3期919-933,共15页
螺旋桨结构的三苯胺荧光团既能作为强的电子供体,又能作为潜在的聚集诱导发光(AIE)骨架.同时,三苯胺衍生物很容易通过简单的反应进行结构修饰,如醛基、氨基、硼酸基、卤素、乙炔基等取代的三苯胺能够发生缩合反应或偶联反应等,进一步功... 螺旋桨结构的三苯胺荧光团既能作为强的电子供体,又能作为潜在的聚集诱导发光(AIE)骨架.同时,三苯胺衍生物很容易通过简单的反应进行结构修饰,如醛基、氨基、硼酸基、卤素、乙炔基等取代的三苯胺能够发生缩合反应或偶联反应等,进一步功能化.因此,功能性三苯胺类化合物被广泛用于太阳能电池、荧光染料、固态发光材料和荧光探针的分子设计中.根据三苯胺基荧光探针的检测对象,将其分为阳离子、阴离子和中性小分子荧光探针三类,并从分子的结构和性能出发,重点综述了近五年来国内外三苯胺基荧光探针在分子设计、合成与检测应用方面的最新进展.展望未来,构建近红外发光和高量子效率的AIE荧光探针值得关注. 展开更多
关键词 三苯胺荧光团 荧光探针 设计策略 合成路线 传感机理 检测应用
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