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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 ...
Nguyễn Hải Dương (born in Phong Điền District in Thừa Thiên Huế province on 15 April 1943) pen name and political name Nguyễn Khoa Điềm is a Vietnamese poet and government literary official. [1] [2] [3] He graduated from Hanoi National University of Education. [4] His work is included in the book, Six Vietnamese Poets. [5]
Endothelial activation is a proinflammatory and procoagulant state of the endothelial cells lining the lumen of blood vessels. [1] It is most characterized by an increase in interactions with white blood cells (leukocytes), and it is associated with the early states of atherosclerosis and sepsis, among others. [2]
Following the increasing of Internet usage in Vietnam, many online encyclopedias were published. The two largest online Vietnamese-language encyclopedias are Từ điển bách khoa toàn thư Việt Nam, a state encyclopedia, and Vietnamese Wikipedia, a project of the Wikimedia Foundation.
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[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]
Phan Khôi brought many new ideas to Vietnam, from a new democratic society with respect to human rights and civil rights, to equality for women, to a new trend of poetry. He provided the best spirit to a debate in Bàn thêm về "bút chiến" , which until today is still the foremost valuable lesson the Vietnamese ought to learn.