At first, there were robot vacuums which were closely followed by robot lawn mowers. Despite these innovations coming out as far back as 1996 – the year I was born! – these robot cleaners and trimmers ...

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Abstract: The electric street sweeper is the extending product of “green car” in the environmental sanitation industry, which is going to be one of the future development trends of sanitation trucks.

Abstract: This article reviews bearingless motor technology for medium and high power applications. Historically, bearingless motors have resided in research settings and certain niche commercial ...