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Spray cooling is a very efficient mean for dissipating high heat flux with low volumetric flux and Low surface temperature, which is used in many fields. However, there are many differences about the heat transfer mechanism of spray cooling academically. This paper introduces in detail an experimental device, which can be used for heat transfer research of single-phase and two-phase spray cooling...
SF6 gas has been widely used currently in electric power systems, such as GIS, GIL and GIT. However, because of the high global warming potential (GWP), SF6 was listed as one of the six restricted gases in "Kyoto Protocol" in 1997. Some fluorocarbon gases with low environmental effect and high dielectric performance are studied as the substitution candidates for SF6. This paper presents...
Focused ultrasound surgery (FUS) is a noninvasive medical treatment for solid tumors by using ultrasound-mediated hyperthermia. The objectives of this study are to develop and characterize a submicron agent to yield higher thermal doses and eventual lead to a more efficient FUS protocol. The submicron agent, named as phase shift nano-emulsion (PSNE) in our study, consists of dodecafluoropentane liquid...
Functional integration is an effective approach to product innovation. The laws of needs evolution proposed by Petrov are introduced. The future needs of a product are forecasted by using the laws of needs evolution. Customer needs can be satisfied by functional integration. Three functional integration modes are proposed, and contradiction in functional integration is discussed, which can be solve...
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