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Topic: Jean Louis Marie Poiseuille

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	Library Exhibitions (Site not responding. Last check: 2007-10-15)
		Poiseuille improved upon blood pressure measuring apparatus by substituting the short tube of a mercury manometer for the inconveniently long tube that Hales had used.
		Connection with the artery was established by means of a hollow lead tube filled with potassium carbonate to prevent coagulation.
		Poiseuille’s haemodynamometer showed that blood pressure rises and falls with expiration and inspiration.
	www.rcpe.ac.uk /library/exhibitions/hypertension/hypertension.php (902 words)

	Fluid Mechanics - Printer-friendly - ninemsn Encarta
		This principle is important in nozzle design and in flow measurements, and it can also be used to predict the lift of a wing in flight (see Aeroplane).
		The first carefully documented friction experiments in low-speed pipe flow were carried out independently in 1839 by the French physiologist Jean Louis Marie Poiseuille, who was interested in the characteristics of blood flow, and in 1840 by the German hydraulic engineer Gotthilf Heinrich Ludwig Hagen.
		An attempt to include the effects of viscosity in the mathematical equations was first made by the French engineer Claude Louis Marie Navier in 1827, and independently by the British mathematician Sir George Gabriel Stokes, who in 1845 perfected the basic equations for viscous incompressible fluids.
	au.encarta.msn.com /text_761578780___3/Fluid_Mechanics.html (1614 words)

	poiseuille (Site not responding. Last check: 2007-10-15)
		As a matter of policy, the CGPM generally resists naming additional derived units, and the poiseuille has not been approved, the term pascal-second being preferred.
		It has the dimensions ML Symbol, Pl. 1 poiseuille = 10 poise.
		Like the poise, the unit is named for Jean Louis Marie Poiseuille (1779 – 1869).
	www.sizes.com /units/poiseuille.htm (74 words)

	Jean-Louis-Marie Poiseuille (Site not responding. Last check: 2007-10-15)
		Discovered independently by Gotthilf Hagen, a German hydraulic engineer, this relation is also known as the Hagen-Poiseuille equation.
		Poiseuille received his medical degree in 1828 and established his practice in Paris.
		1928-ban a 29 éves Jean-Leonard-Marie Poiseuille aranyérmet kapott a párizsi Királyi Orvosi Akadémiától az artériás vérnyomásmérésrõl készített doktori disszertációjáért.....
	indykfi.atomki.hu /kisfiz/MT/poiseuil.htm (135 words)

	April 22 - Today in Science History (Site not responding. Last check: 2007-10-15)
		It relates the flow rate to the fluid's viscosity, the pressure drop along the tube, and the radius of the tube.
		His interest in the circulation of the blood led him to conduct experiments on the flow of liquids in narrow tubes.
		Poiseuille is believed to be the first to have used the mercury manometer to measure blood pressure with his invention, the hemodynamometer, an improved method for measuring blood pressure.«
	www.todayinsci.com /4/4_22.htm (2988 words)

	Slavní fyzici, vědci a vynálezci - životopisy \| conVERTER
		Biot Jean Baptiste (1774-1862) - biot - elektrický proud (soustava CGS).
		Gray Louis Harold (1905-1965) - gray - ionizující záření.
		Poiseuille Jean Louise Marie (1797-1869) - poise - dynamická viskozita (CGS).
	www.converter.cz /fyzici (747 words)

	Jean-Louis-Marie Poiseuille - Définition - Encyclopédie scientifique en ligne
		Poiseuille effectue plusieurs travaux sur le cœur et la circulation du sang.
		En 1844, il établit une relation donnant le débit d'un liquide en fonction de la viscosité et de la chute de pression, par unité de longueur dite loi de Poiseuille ou loi de l'écoulement laminaire des fluides visqueux.
		En 1860, J.-L. Poiseuille est nommé inspecteur des écoles primaires à Paris.
	www.techno-science.net /?onglet=glossaire&definition=8428 (865 words)

	An experimental approach to the fundamental principles of hemodynamics -- Pontiga and Gaytán 29 (3): 165 -- ...
		The results of this experiment are shown in Fig.
		Experimental pressure drop along the three vessels (of length L) associated in parallel as a function of the flow rate.
		The solid line corresponds to the pressure drop according to the theory, which includes the pressure drop due to viscous losses (Poiseuille’s law) and the local pressure drop due to the presence of the flowmeter.
	advan.physiology.org /cgi/content/full/29/3/165 (3824 words)

	Units of viscosity - Hydramotion, suppliers of in-line and portable viscometers
		Named after the French physician Jean Louis Marie Poiseuille (1799 - 1869), this is the cgs unit of viscosity, equivalent to dyne-second per square centimetre.
		It is sometimes referred to as the poiseuille (symbol Pl).
		One poiseuille is 10 poise or 1000 cP, while 1 cP = 1 mPa·s (one millipascal-second).
	www.hydramotion.com /Units_of_viscosity.html (284 words)

	Units: P
		If a force of one dyne is needed to move one square centimeter of the liquid or gas relative to a second layer one centimeter away at a speed of one centimeter per second, then the viscosity is one poise.
		The unit is named for the French physician Jean Louis Marie Poiseuille (1799-1869).
		The poiseuille has been proposed, but not accepted, as an SI derived unit.
	www.unc.edu /~rowlett/units/dictP.html (9631 words)

	The Dispatch - Serving the Lexington, NC - News (Site not responding. Last check: 2007-10-15)
		In France there have been some attempts to establish the poiseuille (Pl) as a name for the PaÂ·s but without international success.
		Care must be taken in not confusing the poiseuille with the poise named after the same person!
		The cgs physical unit for dynamic viscosity is the poise (P) named after Jean Louis Marie Poiseuille.
	www.the-dispatch.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=viscosity (2190 words)

	Capillary Electrophoresis and CE Expert Lite
		On entering known parameters such as capillary dimensions, pressure, and time, fluid delivery volumes and times are automatically calculated and displayed.
		The core of the program is the Poiseuille equation (first described by Jean Louis Marie Poiseuille, a French anatomist and physician).
		In addition to being applicable to almost any CE system, this option is handy for experimenting with the Poiseuille equation itself.
	www.beckman.com /resourcecenter/labresources/ce/expert.asp (711 words)

	A Brief History of Computational Fluid Dynamics (CFD) from Fluent
		These forms of the differential mathematical equations that they proposed nearly 200 years ago are the basis of the modern day computational fluid dynamics (CFD) industry, and they include expressions for the conservation of mass, momentum, pressure, species and turbulence.
		Indeed, the equations are so closely coupled and difficult to solve that it was not until the advent of modern digital computers in the 1960s and 1970s that they could be resolved for real flow problems within reasonable timescales.
		Other key figures who developed theories related to fluid flow in the 19th century were Jean Le Rond d'Alembert, Siméon-Denis Poisson, Joseph Louis Lagrange, Jean Louis Marie Poiseuille, John William Rayleigh, M. Maurice Couette, Osborne Reynolds, and Pierre Simon de Laplace.
	www.fluent.com /about/cfdhistory.htm (1338 words)

	December 26 - Facts, Information, and Encyclopedia Reference article
		1790 - Louis XVI of France gives his public assent to Civil Constitution of the Clergy during the French Revolution
		1898 - Marie and Pierre Curie announce the isolation of radium
		1869 - Jean Louis Marie Poiseuille, French physiologist (b.
	www.startsurfing.com /encyclopedia/d/e/c/December_26.html (1358 words)

	Mathematical Biosciences Institute
		As well as being a physician and physiologist, Jean Louis Marie Poiseuille (1799-1869) was trained in physics and mathematics.
		His interest in the flow of human blood in narrow tubes led him to discover the fourth-power relationship between flow rate and diameter in tubes.
		Simulations are performed using a 1 mm vessel segment with active and passive properties similar to those found in cremaster arterioles.
	mbi.osu.edu /2006/ws4abstracts.html (8523 words)

	[No title] (Site not responding. Last check: 2007-10-15)
		Early in the last century Jean Louis Marie Poiseuille collected data relevant to fluid flow.
		Several decades later Hagenbach and Neumann used his data to develop an empirical equation describing fluid flow.
		Change in viscosity is also of little importance, at least in the short-term, although viscosity could change greatly as in the polycythemia accompanying, for example, acclimation to life at high altitude.
	www.coheadquarters.com /PennLibr/MyPhysiology/lect5/pen5.14.htm (240 words)

	poise (Site not responding. Last check: 2007-10-15)
		Molasses, for example, has a higher viscosity than water.
		One poise = 0.1 pascal-second = 0.1 poiseuille.
		This unit was defined around 1924, and named for Jean Louis Marie Poiseuille (1779–1869).
	www.sizes.com /units/poise.htm (132 words)

	Viscosity of a molten glaze - Viscosité d'une glaçure fondue on Flickr - Photo Sharing!
		A cgs unit of dynamic viscosity equal to one dyne-second per square centimeter; the viscosity of a fluid in which a force of one dyne per square centimeter maintains a velocity of 1 centimeter per second
		[Français, d’après Jean Louis Marie Poiseuille (1799-1869), médecin français et physiologiste.]
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	www.flickr.com /photos/potier/47809885 (285 words)

	GNN Profile: RevTread
		·1869 –; Jean Louis Marie Poiseuille, French physiologist (b.
		·1790 – Louis XVI of France gives his public assent to Civil Constitution of the Clergy during the French Revolution
		·1898 – Marie and Pierre Curie announce the isolation of radium
	revtread.gnn.tv /?page=2 (2056 words)

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