Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner … Wikipedia
Vacuum aspiration — Background Abortion type Surgical First use China 1958 and UK 1967[1] Gestation 3 12 weeks Usage … Wikipedia
Vacuum consolidation — (or vacuum preloading) is a soft soil improvement method that has been successfully used by geotechnical engineers and specialist sof ground improvement companies in countries such as China, Korea, Thailand and France for soil improvement or land … Wikipedia
Vacuum energy — is an underlying background energy that exists in space even when devoid of matter (known as free space). The vacuum energy is deduced from the concept of virtual particles, which is itself derived from the energy time uncertainty principle. Its… … Wikipedia
Vacuum flask cooking — was introduced to the Asian market in the mid 1990s. The vacuum cooker (燜燒鍋) is a stainless steel vacuum flask. The flasks come in various sizes ranging from 20 40 cm (8 16 in) in diameter and 25 cm (10 in) tall. A removable pot, with handle and… … Wikipedia
Vacuum assisted closure wound therapy — Vacuum assisted closure (VAC) is a technique of wound closure used to promote healing in large or chronic wounds, fight infection and enhance healing of burns. VAC seals the wound with a foam dressing and applies negative pressure to the wound… … Wikipedia
Vacuum Arc Remelting — (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. [ Modeling for Casting Solidification Processing , by Kuang Oscar Yu,CRC; 1st edition… … Wikipedia
vacuum aspiration — n a method of abortion performed in the later half of the first trimester of pregnancy by aspiration of the contents of the uterus through a narrow tube * * * vacuum curettage … Medical dictionary
vacuum forming — noun A method or process of shaping thermoplastic by applying suction to it when warmed and placed over a mould • • • Main Entry: ↑vacuum … Useful english dictionary
vacuum melting — vacuum melting, a method of melting metals or alloys a sealed furnace to prevent atmospheric oxidation, remove gaseous impurities, and improve purity and physical properties: »To produce stronger and more ductile steel, 17 U.S. companies have… … Useful english dictionary
Vacuum distillation — At atmospheric pressure, dimethyl sulfoxide boils at 189°C. Under a vacuum, it distills off into the connected receiver at only 70°C. Vacuum distillation is a method of distillation whereby the pressure above the liquid mixture to be distilled is … Wikipedia