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Entropy 2004, 6(1), 96-101; doi:10.3390/e6010096
Received: 5 September 2003 / Accepted: 25 December 2003 / Published: 21 March 2004
(This article belongs to the Special Issue Quantum Limits to the Second Law of Thermodynamics)
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Abstract: A mechanism of a gated pore in a membrane is described. Fluxes of gas molecules pass through the pore and produce a pressure gradient in a process that challenges the second law.
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