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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 ...
He is also the Abbot of Huong Son temple (Ha Tinh), Quan Am Dong Hai temple (Soc Trang), and Giac Ngo temple (Ba Ria - Vung Tau). [ 2 ] In 1992 he went to India for higher education and got his MA degree in philosophy in 1997 from Delhi University and D.Phil. degree from Allahabad University in 2001, respectively.
Chữ khoa đẩu is a term claimed by the Vietnamese pseudohistorian Đỗ Văn Xuyền to be an ancient, pre-Sinitic script for the Vietnamese language. Đỗ Văn Xuyền's works supposedly shows the script have been in use during the Hồng Bàng period, and it is believed to have disappeared later during the Chinese domination of Vietnam .
[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]
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Định was born from a peasant family in Bến Tre Province, and fought with the Viet Minh forces against the French. She was arrested and incarcerated by the French colonial authority between 1940–43, and helped lead an insurrection in Bến Tre in 1945, and again in 1960 (against the government of Ngô Đình Diệm).
Pulsatile secretion is a biochemical phenomenon observed in a wide variety of cell and tissue types, in which chemical products are secreted in a regular temporal pattern. The most common cellular products observed to be released in this manner are intercellular signaling molecules such as hormones or neurotransmitters .