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Diffusion pump - Wikipedia
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... As the vapor jet impacts the outer cooled shell of the diffusion pump the gas entrained in the jet flow coalesces, carrying the entrained pumped gases into the base of the pump where the gas pressure is increased and pumped by the secondary mechanical or rough pump from the diffusion pump outlet. ... [25/04/06]
http://en.wikipedia.org/wiki/Diffusion_pump |
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Edwin Hancock's Home Page
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Professor Edwin Hancock
/ A brief history..... ... I have also been successful in obtaining funding from Qinetiq, Shell, the EC and the Woolfson Foundation. ... This link takes you to a recent talk on diffusion processes on graphs and the heat equation given at the Isaac Newton Institute in Cambridge. ... [19/05/08]
http://www-users.cs.york.ac.uk/~erh/ |
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Space Suits
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... This provided greater mobility than the Goodrich A/P22S-3 full pressure suit. 4 layers, 8 sizes, suit controller, oxygen regulator inside helmet, outer layer nylon/polyurethane, dacron link net restraint second layer, third layer silicon impregnated nylon / neoprene pressure bladder, inner fourth diffusion layer was oxford weave. ... A9L Two hard-shell, ... [06/08/08]
http://www.astronautix.com/craftfam/spasuits.htm |
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OMEGA ENGINEERING - Electronic Halogen Leak Detector
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... Over the years this concept was refined and improved with extensive research into electrode metals, tip shell materials and finishing procedures as well as circuitry changes and features to improve response time and "clearing" time. ... This gives appreciably quicker response time than a system which relies only on diffusion for a gas leak to penetrate the ...
http://www.omega.com/techref/ph-4.html |
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Welcome To CounterPunch
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... But months of bombing of Iraq by US and British planes and cruise missiles has left behind an even more deadly and insidious legacy: tons of shell casings, bullets and bomb fragments laced with depleted uranium. ... A 1991 Energy Department memo reports: "during the process of making fuel for nuclear reactors and elements for nuclear weapons, the Paducah ...
http://www.counterpunch.org/du.html |
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10.3.1
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... A symmetric structural shell transmitting only normal stresses in orthogonal directions may employ either a stressed skin or a ribbed design. ... Other important microtank design constraints include diffusion leakage and vessel flammability (Section 10.3.4), vapor pressure of tank materials at high temperatures (Section 10.3.5), thermal cycling during filling ... [05/03/03]
http://www.nanomedicine.com/NMI/10.3.1.htm |
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Soft Matter home
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... Phospholipids surrounding self-assembled biodegradable polymer microparticles and nanoparticles exhibit two-dimensional fluidity and can form shell, onion, or flower nanostructures, depending on the quantity and composition of lipids employed in emulsion synthesis. ... The properties of concentrated carbohydratewater systems are explored using molecular ...
http://www.rsc.org/Publishing/Journals/sm/index.asp |
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