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The flow profiles was first derived by John R. Womersley (1907–1958) in his work with blood flow in arteries. [1] The cardiovascular system of chordate animals is a very good example where pulsatile flow is found, but pulsatile flow is also observed in engines and hydraulic systems, as a result of rotating mechanisms pumping the fluid.
It is a dimensionless expression of the pulsatile flow frequency in relation to viscous effects. It is named after John R. Womersley (1907–1958) for his work with blood flow in arteries. [1] The Womersley number is important in keeping dynamic similarity when scaling an experiment. An example of this is scaling up the vascular system for ...
[13] [14] [15] In some pulsatile pumps (that use compressed air as an energy source [16]), the volume occupied by blood varies during the pumping cycle. If the pump is contained inside the body then a vent tube to the outside air is required. Continuous-flow VADs are smaller and have proven to be more durable than pulsatile VADs. [17]
The contractile vacuole is a specialized type of vacuole that regulates the quantity of water inside a cell.In freshwater environments, the concentration of solutes is hypotonic, lower outside than inside the cell.
Mang language, an Austroasiatic language of China and Vietnam; 17460 Mang, a main-belt asteroid; Mang, a bat character in Rudyard Kipling's The Jungle Book; Mang, a Filipino honorific address to an older male person, as in Mang Kanor or Mang Tomas, almost equivalent to Sir or Mister.
The Mảng (Chinese: 莽人; pinyin: Mángrén; Vietnamese: Mảng) are an ethnic group living primarily in Lai Châu, northwestern Vietnam, where they are one of Vietnams' 54 officially recognized ethnic groups.
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"Tiến Quân Ca" (lit. "The Song of the Marching Troops") is the national anthem of Vietnam.The march was written and composed by Văn Cao in 1944, and was adopted as the national anthem of the Democratic Republic of Vietnam in 1946 (as per the 1946 constitution) and subsequently the Socialist Republic of Vietnam in 1976 following the reunification of Vietnam.