Abstract: Pumps system takes important role at water-supplying factory. It always takes up a large part of consumer at energy. The parallel operation mode of pump group has different impacts on the ...

Abstract: The performance of a two-stage electrohydrodynamic (EHD) gas pump in a circular tube has been investigated for operating conditions in which each stage is charged at a different voltage. The ...

Context is key. For example, your own home, even if old and a bit run down, often is comforting and familiar. But if one was to approach a house that looked like it hadn’t had a human inhabitant for ...