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道岔控制继电器颤动原因分析及处理
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作者 徐建军 《科技风》 2014年第10期49-49,共1页
二启动继电器转极时出现颤动现象,并伴随电火花产生,不仅会缩短继电器的使用寿命,主要影响到车站行车作业效率。本文对颤动的原因进行了详情分析,并提出了相应的处理方法。
关键词 二启动继电器 磁路 颤动 操纵板 电容
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Chinese brushes: From controllable liquid manipulation to template-free printing microlines 被引量:1
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作者 Qianbin wang Qingan Meng +1 位作者 Huan Liu Lei Jiang 《Nano Research》 SCIE EI CAS CSCD 2015年第1期97-105,共9页
As a traditional writing instrument for calligraphy and painting, the Chinese brush has enjoyed a high reputation over the last 5,000 years due to its ability to controllably handle liquid ink, and has been widely use... As a traditional writing instrument for calligraphy and painting, the Chinese brush has enjoyed a high reputation over the last 5,000 years due to its ability to controllably handle liquid ink, and has been widely used to deposit ink into certain characters or figures as a means of cultural communication. In this mini-review, we first show how the key to the controllable liquid transfer in a Chinese brush lies in the anisotropic multi-scale structural features of the freshly emergent hairs. Then, drawing inspiration from this, applications in controllable liquid pumping, highly efficient liquid transfer and template-free printing microlines are addressed. We envision that the fundamentals of Chinese brushes and their applications in liquid manipulation mentioned in this review may also be extended to other liquid phase functional material systems. 展开更多
关键词 Chinese brushes dynamic wetting multi-scale structures liquid transfer direct printing
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