Results 171 to 180 of about 2,711,397 (376)

Hawking radiation power equations for black holes

Nuclear Physics B, 2017
We derive the Hawking radiation power equations for black holes in asymptotically flat, asymptotically Anti-de Sitter (AdS) and asymptotically de Sitter (dS) black holes. This is done by using the greybody factor for these black holes.
Ravi Mistry, Sudhaker Upadhyay, Ahmed Farag Ali, Mir Faizal   +3 more
doaj   +1 more source

John Zephaniah Holwell (1711–1798) and the Black Hole of Calcutta [PDF]

, 1944
H. P. Bayon
openalex   +1 more source

Black hole thermodynamics [PDF]

International Journal of Modern Physics D, 2014
The discovery in the early 1970s that black holes radiate as black bodies has radically affected our understanding of general relativity, and offered us some early hints about the nature of quantum gravity. In this paper, will review the discovery of black hole thermodynamics and summarize the many independent ways of obtaining the thermodynamic and ...
openaire   +6 more sources

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

Topological dyonic black holes of massive gravity with generalized quasitopological electromagnetism

European Physical Journal C: Particles and Fields
In this paper we investigate new dyonic black holes of massive gravity sourced by generalized quasitopological electromagnetism in arbitrary dimensions. We begin by deriving the exact solution to the field equations defining these black holes and look at
Askar Ali, Ali Övgün
doaj   +1 more source

Entropy bound of horizons for charged and rotating black holes

Physics Letters B, 2015
We revisit the entropy product, entropy sum and other thermodynamic relations of charged and rotating black holes. Based on these relations, we derive the entropy (area) bound for both event horizon and Cauchy horizon.
Wei Xu, Jia Wang, Xin-he Meng
doaj   +1 more source

The Black Hole and Other Essays [PDF]

, 1965
Edwin Clarke
openalex   +1 more source

Gauss-Bonnet Black Holes in AdS Spaces

, 2002
We study thermodynamic properties and phase structures of topological black holes in Einstein theory with a Gauss-Bonnet term and a negative cosmological constant.
A. Chamblin, A. H. Chamseddine, A. H. Chamseddine, B. Zumino, B. Zwiebach, C. G. Huang, C. Huang, C. Lanczos, D. Birmingham, D. G. Boulware, D. Klemm, D. Klemm, D. Klemm, D. L. Wiltshire, D. L. Wiltshire, D. Lovelock, D. R. Brill, E. Witten, E. Witten, E. Woolgar, G. J. Galloway, J. Crisostomo, J. L. Friedman, J. L. Friedman, J. Maldacena, J. Maldacena, J. P. Lemos, J. P. Lemos, J. P. Lemos, J. T. Wheeler, L. Vanzo, M. Banados, M. Banados, M. Cvetic, R. Aros, R. B. Mann, R. B. Mann, R. C. Myers, R. Cai, R. Cai, R. Cai, R. Cai, R. Emparan, R. M. Wald, Rong-Gen Cai, S. Aminneborg, S. Nojiri, S. Nojiri, S. S. Gubser, S. W. Hawking, T. Jacobson, W. L. Smith   +51 more
core   +1 more source

Nanodiamond‐Infused Microgels for pH‐Tunable Rheology, Lubrication, and UV Protection

Advanced Functional Materials, EarlyView.
Microgels consisting of swollen polyacrylic acid polymer networks, impregnated with nanodiamonds provide protection from ultraviolet (UV) radiation harmful to human health. Nanodiamonds enable UV blockage and control of the rheology (flow) and lubrication (skin‐feel) of these microgel‐skincare‐mimics.
Pallav K. Jani, Sarvesh A. Nadkarni, Katherine J. Ernst, Barbara V. Farias, Chloe G. Hincher, Oluwatobi A. Ojuade, Yug C. Saraswat, Prottasha Sarker, Donald O. Freytes, Lilian C. Hsiao, Saad A. Khan   +10 more
wiley   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source