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Thermal barrier

thermal barrier

(Science: radiobiology) In magnetic mirror devices, this is a depression of electrostatic potential formed by enhancing ion loss in the region between the central cell and the positive potential plug. The thermal barrier significantly reduces the density requirements in the plug and lowers the overall power required to sustain the solenoidal plugging by thermally decoupling central cell electrons from the end plugs.

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Re: (Facilitated Diffusion), Carrier protein.

If two conformations of a protein have similar energies and the energy barrier between the conformations is low enough, random thermal motions can convert the protein between the two conformations. Proteins are constantly ...

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by jonmoulton
Fri Jun 24, 2011 4:29 pm
Forum: Cell Biology
Topic: (Facilitated Diffusion), Carrier protein.
Replies: 3
Views: 10498

Re: the Calvin cycle???help please

... can occur by "hydrogen tunneling" through an activation barrier; and, second, by "electron provider," do you mean by "electron ... transfer. For an introduction to the chemical rate processs involving thermal activation barriers, please refer to Francis K. Fong, Acct. Chem. ...

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by fkfong
Mon Dec 06, 2010 8:37 pm
Forum: Botany Discussion
Topic: the Calvin cycle???help please
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Views: 21211

Re: Can organisms feed with vibrations or thermal infrared?

... that could allow organisms to feed directly with heat (not using thermal infrared): Let say that we have two molecules(A,B) which has larger ... than when they are bind (E2<E1). Additionally there is energy barrier between these states. Now when they are bind in solution, their thermal ...

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by Jarek
Wed Sep 03, 2008 2:38 pm
Forum: General Discussion
Topic: Can organisms feed with vibrations or thermal infrared?
Replies: 1
Views: 3072

The Fiber Disease

... is sensitive to density changes occurring through protein motions or thermal solvent expansion. The energy of the photons absorbed by the sample ... as well as the energetics involved. The PESs show that, activation barrier of less than 1 eV exists for the N1-H dissociation with rather flat ...

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by Nadas Moksha
Sun Dec 10, 2006 11:03 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6255164

The Fiber Disease

Non-thermal activation of the hsp27/p38MAPK stress pathway by mobile phone radiation in human endothelial cells: Molecular mechanism for cancer- and blood-brain barrier-related effects Abstract We have examined whether non-thermal exposures of cultures of ...

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by London
Fri Dec 01, 2006 11:52 pm
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6255164
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