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horizon apparent

apparent horizon

sciences naturelles et appliquées / environnement - iate.europa.eu

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Thermodynamics of apparent horizon and modified friedman equationsStarting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparenthorizon of a FRW universe, and assuming that the associated entropy withapparent horizon has a quantum corrected relation, $S=\frac{A}{4G}-\alpha \ln\frac{A}{4G}+\beta \frac{4G}{A}$, we derive modified Friedmann equationsdescribing the dynamics of...

général - core.ac.uk - PDF: arxiv.org

Unified first law and thermodynamics of apparent horizon in frw universe... We find that the unified first law firstly proposed by Hayward to treat the "outer" trapping horizon of dynamical black hole can be used to the apparent horizon (a kind of "inner" trapping horizon in the context of the FRW cosmology) of the FRW universe....

PDF: core.ac.uk

Reflection and transmission at the apparent horizon during gravitational collapse... We show thatingoing (collapsing) dust shell modes outside the apparent horizon mustnecessarily be accompanied by outgoing modes inside the apparent horizon, whoseamplitude is suppressed by the square root of the Boltzmann factor at theHawking...

PDF: arxiv.org

Viscous cosmology and thermodynamics of apparent horizon... is shown that the differential form of Friedmann equations of FRW universecan be recast as a similar form of the first law, $T_{h}dS_{h} = dE + WdV$, ofthermodynamics at the apparent horizon of FRW universe filled with the viscousfluid....

PDF: arxiv.org

Hep-th/0612144 thermodynamics of apparent horizon in brane world scenarioIn this paper we discuss the thermodynamics of apparent horizon of an n-dimensional Friedmann-Robertson-Walker (FRW) universe embedded in an (n+1)-dimensional AdS spacetime....

PDF: citeseerx.ist.psu.edu

topocentric horizon

sciences naturelles et appliquées - iate.europa.eu

visible horizon

sciences naturelles et appliquées - iate.europa.eu

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Detection limits for super-hubble suppression of causal fluctuations... We find that, depending on the primordial power spectrum, a suppression scale modestly larger than the visible Horizon can be detected, but that the detectability drops very rapidly with increasing scale....

général - core.ac.uk - PDF: core.ac.uk

1 autonomous rover reflectance spectroscopy with dozens of targetsFuture planetary rovers will travel autonomously over the visible horizon where data collection sequences cannot be scripted in advance....

PDF: citeseerx.ist.psu.edu

Phobos mobility simulation... It is irregularly shaped, so its local gravitational field does not always point straight down with respect to the visible horizon....

PDF: hdl.handle.net

Glideslope perception during aircraft landing... 17 university students were repeatedly exposed to the following four landing scene conditions: (i) a daylight scene of a runway surrounded by buildings and lying on a 100 km deep texture mapped ground plane; (ii) a night scene with only the side runway lights visible; (iii) a night scene with the side, center, near end and far end runway lights visible and a visible horizon line; or (iv) a night scene with a runway outline (instead of discrete lights) and a visible horizon line....

PDF: citeseerx.ist.psu.edu

PDF: ro.uow.edu.au