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Vacuum tube

vacuum tube

A glass tube from which the air has been removed, containing two or more electrodes, between which passes an electrical current or spark; used in the production of x-rays, or to control circuits. Previously in wide use, the vacuum tube has been supplanted by transistors in electronic circuits.


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Re: Blood is always red, never blue.

... that is caring deoxygenated blood to the heart, and collected in a test tube that is vacuum sealed is brick red in color. The blood leaving the vessel is not receiving any oxygen ...

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by zanebo
Sun Sep 11, 2011 5:06 am
 
Forum: Human Biology
Topic: Blood is always red, never blue.
Replies: 57
Views: 373800

Urgent:Algal Oil Extraction..suggestions

... around for a bigger centrifuge? The kind that can go up to 4x500ml per tube is kind of frequent in laboratory and have rotors that can handle much ... And others can go much higher... - Also for heat drying, a rotating vacuum evaporator (aka speedvac) which heats under a vacuum could help, but ...

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by canalon
Fri Jul 17, 2009 10:53 am
 
Forum: Microbiology
Topic: Urgent:Algal Oil Extraction..suggestions
Replies: 2
Views: 5156

Fractination of SA into Cytosol., Cell Wall, Cytoplasmic

... to either a benchtop Eppendorf centrifuge, which can spin a 1.5 ml tube up to 17,000xg, or an RC-5Plus or equivalent which can spin 15-30 ml ... You can also fractionate soluble protein from insoluble protein by vacuum filtration--but I wonder if your peptide will be bound strongly enough ...

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by blcr11
Mon Jun 04, 2007 4:50 pm
 
Forum: Microbiology
Topic: Fractination of SA into Cytosol., Cell Wall, Cytoplasmic
Replies: 3
Views: 5006

The Fiber Disease

... accord with the weather controll yields a ultrahigh entropy plasma flux vacuum tube that we used to call our atmosphere ultimatly giving a hand full of humans the ability ...

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by Nadas Moksha
Sat Nov 25, 2006 9:59 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5428755

The Fiber Disease

... by Mesyats et al. and the Correas, during the sputtering of metals in vacuum from the small droplet instabilities in the hot spots that appear ... et al. in electronic pulsed reflex discharges in low pressure drift tubes, whose pulses, first squeezed by the mirror charges in the drift tube, ...

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by Nadas Moksha
Mon Oct 02, 2006 2:29 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5428755
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