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Blood flow is also affected by the smoothness of the vessels, resulting in either turbulent (chaotic) or laminar (smooth) flow. Smoothness is reduced by the buildup of fatty deposits on the arterial walls. The Reynolds number (denoted NR or Re) is a relationship that helps determine the behavior of a fluid in a tube, in this case blood in the ...
Laminar flow hoods are used to exclude contaminants from sensitive processes in science, electronics and medicine. Air curtains are frequently used in commercial settings to keep heated or refrigerated air from passing through doorways. A laminar flow reactor (LFR) is a reactor that uses laminar flow to study chemical reactions and process ...
Turbulent flow is present in circumstances under which Re > 4000. The range of 2000 < Re < 4000 is known as the transition range. Most blood flow in humans is laminar, having a Re of 300 or less, it is possible for turbulence to occur at very high flow rates in the descending aorta, for example, in highly conditioned athletes.
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.
Second, medical roots generally go together according to language, i.e., Greek prefixes occur with Greek suffixes and Latin prefixes with Latin suffixes. Although international scientific vocabulary is not stringent about segregating combining forms of different languages, it is advisable when coining new words not to mix different lingual roots.
"The larger the tariffs are, and the more retaliation there is, the more likely we are to have a recession and that would actually mean lower inflation and lower rates over the long term," Tilley ...
"I mean, if you put a bill to fund the (border) wall on the floor on January 3 that will pass," he said. "The problem is, the swamp wants what the swamp wants and they’re going to try to attach ...
local medical doctor: LMP: last menstrual period—first day of the menstrual period low malignant potential LMWH: low-molecular-weight heparin: LN: lymph node Logical Observation Identifiers Names and Codes (LOINC) LND: lymph node dissection: LNG: levonorgestrel: LNI: lymph node involvement: LOA: left occipitoanterior (fetal position) level of ...