Results 51 to 60 of about 2,140,117 (297)
Entropy of Reissner-Nordstrom Black Holes with Minimal Length Revisited
, 2007 Based on the generalized uncertainty principle, we study the entropy of a four-dimensional black hole by counting degrees of freedom near the horizon and obtain the (finite) entropy proportional to the surface area at the horizon without a cutoff ...
Ha, Jihye, Kim, Wontae, Yoon, Myungseok
core +1 more source
Why the Entropy of a Black Hole is $A/4$? [PDF]
, 1994 A black hole considered as a part of a thermodynamical system possesses the Bekenstein-Hawking entropy $S_H =A_H /(4l_{\mbox{\scriptsize{P}}}^2)$, where $A_H$ is the area of a black hole surface and $l_{\,\mbox{\scriptsize{P}}}$ is the Planck length ...
Frolov, Valeri P.
core +2 more sources
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Holographic Shell Model: Stack Data Structure inside Black Holes
, 2011 We suggest that bits of information inhabit, universally and holographically, the entire black hole interior, a bit per a light sheet unit interval of order Planck area difference.
't Hooft G., Aharon Davidson
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Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley +1 more source
`Thermodynamics' of Minimal Surfaces and Entropic Origin of Gravity
, 2010 Deformations of minimal surfaces lying in constant time slices in static space-times are studied. An exact and universal formula for a change of the area of a minimal surface under shifts of nearby point-like particles is found.
A. D. Sakharov +3 more
core +1 more source
Democracy and Digital Authoritarianism: An Assessment of the EU’s External Engagement in the Promotion and Protection of Internet Freedom. College of Europe EU Diplomacy Paper 01/2020 [PDF]
, 2020 The past decade has seen a gradual global increase in digital authoritarianism. Internet shutdowns, online censorship, mass surveillance and violations of privacy rights have all become more frequent in parts of the world where citizens are not ...
Garside, Susanna
core
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Artists and Unconstitutional Conditions: The Big Bad Wolf Won’t Subsidize Little Red Riding Hood’s Indecent Art [PDF]
, 1993 Recent developments in the area of academic freedom and artistic expression are examined, considering First Amendment protection for artistic expression as well as the particular problem of government funding of the ...
Elston, Michael J.
core +2 more sources
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source