共查询到19条相似文献,搜索用时 15 毫秒
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提起"生态",就目前来说,还应该算是一个很时尚的名词吧?但笔者这里决没有沽名钓誉,哗众取宠之意。而是当你确确实实看到我们己经失去了太多的蓝天、绿地、稻禾、小溪之后,发自内心的真切呼唤。我想,作为一个陶瓷工作者,我也想尽我的一点绵薄之力,以我创作的作品名称"生态"来表达一下自己对大自然的热爱或对民众保护生态、爱护自然的一种意识召唤吧! 相似文献
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还在上中学的时候,要好的女友阿玫就不止一次地向我描述她未来的理想生活:我们一同去一个山清水秀的地方,当一所乡村小学的教师,拥有一个宽敞的院子,可以房前屋后种几畦菜,栽几棵树,还要种上一圈儿黄澄澄的向日葵花。上完课后,我负责做饭,她负责织毛衣……二十多年过去,阿玫早已是驰骋一方的商界女杰,做的还是感觉上很男性的矿产生意。我亦在一座又一座的城市之间辗转流连,充分感受着现代都市的种种悸动与丰富。当年小女儿家稚嫩、朦胧的田园生活梦,当是被现实生活的繁杂层一层地深深掩埋了。阿雅是位聪慧娟秀的江南女子,为了爱情随夫君定居在了北京,对于首都的博大,她一直都是不甚适应的。 相似文献
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《中国洗涤用品工业》2004,(2)
面对市面上琳琅满目、品种繁多的美白护肤产品,真是叫人眼花缭乱、目不暇接.在庆幸自己的肌肤可以享受百般呵护的同时,爱美的你,也一定会心生些许困惑与茫然-- 相似文献
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Wanli Wang Dongfang Yang Xiaoran Yan Licheng Wang Han Hu Kai Wang 《Frontiers of Chemical Science and Engineering》2023,17(6):635
Wave energy is inexhaustible renewable energy. Making full use of the huge ocean wave energy resources is the dream of mankind for hundreds of years. Nowadays, the utilization of water wave energy is mainly absorbed and transformed by electromagnetic generators (EMGs) in the form of mechanical energy. However, waves usually have low frequency and uncertainty, which means low power generation efficiency for EMGs. Fortunately, in this slow current and random direction wave case, the triboelectric nanogenerator (TENG) has a relatively stable output power, which is suitable for collecting blue energy. This article summarizes the main research results of TENG in harvesting blue energy. Firstly, based on Maxwell’s displacement current, the basic principle of the nanogenerator is expounded. Then, four working modes and three applications of TENG are introduced, especially the application of TENG in blue energy. TENG currently used in blue energy harvesting is divided into four categories and discussed in detail. After TENG harvests water wave energy, it is meaningless if it cannot be used. Therefore, the modular storage of TENG energy is discussed. The output power of a single TENG unit is relatively low, which cannot meet the demand for high power. Thus, the networking strategy of large-scale TENG is further introduced. TENG’s energy comes from water waves, and each TENG’s output has great randomness, which is very unfavorable for the energy storage after large-scale TENG integration. On this basis, this paper discusses the power management methods of TENG. In addition, in order to further prove its economic and environmental advantages, the economic benefits of TENG are also evaluated. Finally, the development potential of TENG in the field of blue energy and some problems that need to be solved urgently are briefly summarized. 相似文献
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