Time Reversibility, Correlation Decay and the Steady State Fluctuation Relation for Dissipation

The turbulent thermal convection on the Sun is an example of an irreversible non-equilibrium phenomenon in a quasi-steady state characterized by a continuous entropy production rate. Here, the statistical features of a proxy of the local entropy production rate, in solar quiet regions at different timescales, are investigated and compared with the symmetry conjecture of the steady-state fluctuation theorem by Gallavotti and Cohen. Our results show that solar turbulent convection satisfies the symmetries predicted by the fluctuation relation of the Gallavotti and Cohen theorem at a local level.

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A universal scaling law determines time reversibility and steady state of substitutions under selection

Theoretical Population Biology ◽

10.1016/j.tpb.2012.03.007 ◽

2012 ◽

Vol 82 (1) ◽

pp. 66-76 ◽

Cited By ~ 7

Author(s):

Michael Manhart ◽

Allan Haldane ◽

Alexandre V. Morozov

Keyword(s):

Steady State ◽

Scaling Law ◽

Time Reversibility ◽

Universal Scaling

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The Steady State Fluctuation Relation for the Dissipation Function

Journal of Statistical Physics ◽

10.1007/s10955-007-9372-3 ◽

2007 ◽

Vol 128 (6) ◽

pp. 1337-1363 ◽

Cited By ~ 50

Author(s):

Debra J. Searles ◽

Lamberto Rondoni ◽

Denis J. Evans

Keyword(s):

Steady State ◽

Dissipation Function ◽

Fluctuation Relation

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Steady state fluctuation relations and time reversibility for non-smooth chaotic maps

Journal of Statistical Mechanics Theory and Experiment ◽

10.1088/1742-5468/2011/04/p04021 ◽

2011 ◽

Vol 2011 (04) ◽

pp. P04021 ◽

Cited By ~ 8

Author(s):

Matteo Colangeli ◽

Rainer Klages ◽

Paolo De Gregorio ◽

Lamberto Rondoni

Keyword(s):

Steady State ◽

Chaotic Maps ◽

Time Reversibility ◽

Fluctuation Relations

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Studies on Water in the Hydration Chamber of a Modified Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100069715 ◽

1970 ◽

Vol 28 ◽

pp. 544-545

Author(s):

R. C. Moretz ◽

G. G. Hausner ◽

D. F. Parsons

Keyword(s):

Thin Film ◽

Thin Films ◽

Electron Microscope ◽

Steady State ◽

Room Temperature ◽

Small Mass ◽

Equilibrium Pressure ◽

Biological Objects ◽

Mechanical Pump ◽

Differential Pumping

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.

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Continuous hydrogenolysis of acetal-stabilized lignin in flow

Green Chemistry ◽

10.1039/d0gc02928a ◽

2021 ◽

Author(s):

Wu Lan ◽

Yuan Peng Du ◽

Songlan Sun ◽

Jean Behaghel de Bueren ◽

Florent Héroguel ◽

...

Keyword(s):

Steady State ◽

Challenges And Opportunities

We performed a steady state high-yielding depolymerization of soluble acetal-stabilized lignin in flow, which offered a window into challenges and opportunities that will be faced when continuously processing this feedstock.

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