Results 71 to 80 of about 947,753 (292)
A note on black hole entropy, area spectrum, and evaporation
, 2010 We argue that a process where a fuzzy space splits in two others can be used to explain the origin of the black hole entropy, and why a "generalized second law of thermodynamics" appears to hold in the presence of black holes.
Landim, R. R., Silva, C. A. S.
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, 2002 43 pages, springer style, several ps files. to appear in the proceedings of the Tuebingen conference on conformal structure of space-time, J. Frauendiener, H.
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Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
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BLACK HOLE UNCERTAINTIES [PDF]
Modern Physics Letters A, 1993 In this work the quantum theory of two-dimensional dilaton black holes is studied using the Wheeler-De Witt equation. The solutions correspond to wave functions of the black hole. It is found that for an observer inside the horizon, there are uncertainty relations for the black hole mass and a parameter in the metric determining the Hawking flux. Only
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Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
Physics Letters B, 2020 In this paper, a preliminary correspondence between the thermodynamic curvature and the isoperimetric theorem is established from a 4-dimensional ultraspinning black hole.
Zhen-Ming Xu
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Exact solutions of higher dimensional black holes
, 2011 We review exact solutions of black holes in higher dimensions, focusing on asymptotically flat black hole solutions and Kaluza-Klein type black hole solutions.
Ishihara, Hideki, Tomizawa, Shinya
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
The Astrophysical Journal LettersThe little red dots (LRDs) are high-redshift galaxies uncovered by JWST, characterized by small effective radii ( R _eff ∼ 80–300 pc), number densities intermediate between typical galaxies and quasars, and a redshift distribution peaked at z ∼ 5.
Fabio Pacucci, Abraham Loeb
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Robustness and the Event Horizon Telescope: the case of the first image of M87*
Philosophy of PhysicsWe examine the justification for taking the Event Horizon Telescope’s famous 2019 image to be a reliable representation of the region surrounding a black hole.
Juliusz Doboszewski, Jamee Elder
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