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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 ...
Việt-nam bách-khoa từ-điển (Encyclopedia of Vietnam), a set of encyclopedias with annotations in Chinese, English and French by Đào Đăng Vỹ, a Vietnamese scholar; published from 1959 to 1963 in Saigon, Republic of Vietnam. [3] [4]
[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 Vietnam Academy of Science and Technology (VAST; Vietnamese: Viện Hàn lâm Khoa học và Công nghệ Việt Nam) is the largest and most prominent research institute in Vietnam. It was founded on 20 May 1975 as the Vietnam Academy of Science , then subsequently assumed its current name in 2008.
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Ven. Thich Nhat Tu was born in 1969. After completing secondary high school, he became a novice at 13 years old, under the spiritual guidance of the late Most Ven. Thich Thien Hue at Giac Ngo Temple and received full ordination in 1988.
Both Mekong and the distributary Bassac then flow towards the Cambodia–Vietnam border. After entering Vietnam, Mekong is known as the Tiền River (or Fleuve Antérieur in French, meaning "prior river") while Bassac is known as the Hậu River (Vietnamese: Sông Hậu/ Hậu Giang or French: Fleuve Postérieur, meaning "posterior river"). [2]