Results 121 to 130 of about 2,711,397 (376)

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

Advanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun, Muhammad Usman Farid, Wenlong Xi, Gang Lu, Min Wei Boey, Sai Kishore Ravi, Patrick H.‐L. Sit, Alicia Kyoungjin An   +7 more
wiley   +1 more source

Complexity, action, and black holes [PDF]

, 2015
In an earlier paper "Complexity Equals Action" we conjectured that the quantum computational complexity of a holographic state is given by the classical action of a region in the bulk (the `Wheeler-DeWitt' patch).
Adam R. Brown, Daniel A. Roberts, L. Susskind, Brian Swingle, Ying Zhao   +4 more
semanticscholar   +1 more source

Lattice Black Holes [PDF]

, 1997
We study the Hawking process on lattices falling into static black holes. The motivation is to understand how the outgoing modes and Hawking radiation can arise in a setting with a strict short distance cutoff in the free-fall frame.
A. Gullstrand, N. D. Birrell, N. Weiss, P. Painlevé, R. Brout, S. Corley, Steven Corley, T. Jacobson, Ted Jacobson, W. G. Unruh, W. G. Unruh   +10 more
core   +3 more sources

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo, Xue Bai, Boqun Liang, Thomas Hoke, Ming Liu, Rafal E. Dunin‐Borkowski, Xi Chen   +6 more
wiley   +1 more source

New Estimates of the Spin and Accretion Rate of the Black Hole M87*

The Astrophysical Journal Letters
In this Letter, we use the imaging results of M87* from the Event Horizon Telescope (EHT) to calculate the rotational velocity of the inner edge of the accretion disk and find a value of ∼0.14 c .
Michael Drew, Joshua S. Stanway, Brett A. Patterson, Timothy J. Walton, Derek Ward-Thompson   +4 more
doaj   +1 more source

Stuffed Black Holes

, 1998
Initial data corresponding to spacetimes containing black holes are considered in the time symmetric case. The solutions are obtained by matching across the apparent horizon different, conformally flat, spatial metrics.
A. Arbona, A. Lichnerowicz, C. Bona, C. W. Misner, C. W. Misner, J. Bowen, J. Carot, J. Massó, J. Stachel, J. Stela, J. W. York, Jr., J. W. York, Jr., L. Mas, L. Smarr, R. W. Lindquist, W. R. Smythe, Y. Choquet-Bruhat   +16 more
core   +1 more source

Black hole pulsar

Physical Review D, 2018
In anticipation of a LIGO detection of a black hole/neutron star merger, we expand on the intriguing possibility of an electromagnetic counterpart. Black hole/Neutron star mergers could be disappointingly dark since most black holes will be large enough to swallow a neutron star whole, without tidal disruption and without the subsequent fireworks ...
Janna Levin, Daniel J. D’Orazio, Sebastian Garcia-Saenz   +2 more
openaire   +4 more sources

Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han, Shota Fujii, André J. van der Vlies, Masoud Ghasemi, Joshua T. Del Mundo, Sarah N. Kiemle, Esther W. Gomez, Enrique D. Gomez, Ralph H. Colby, Urara Hasegawa   +9 more
wiley   +1 more source

Accretion, Primordial Black Holes and Standard Cosmology

, 2011
Primordial Black Holes evaporate due to Hawking radiation. We find that the evaporation time of primordial black holes increase when accretion of radiation is included.Thus depending on accretion efficiency more and more number of primordial black holes ...
A Barrau, A Polnarev, AS Majumdar, AS Majumdar, B NAYAK, B Nayak, B Ya, BJ Carr, BJ Carr, BJ Carr, BJ Carr, CO Lousto, D Blais, D Blais, D La, D Page, H Kodma, ID Novikov, J MacGibbon, JD Barrow, JH MacGibbon, KJ Mack, L P SINGH, L Susskind, MY Kholpov, MY Kholpov, S Wienberg, SW Hawking, SW Hawking   +28 more
core   +1 more source

On the Black-Hole Kink [PDF]

International Journal of Modern Physics D, 1997
By allowing the light cones to tip over on hypersurfaces according to the conservation laws of an one-kink in static, Schwarzschild black-hole metric, we show that in the quantum regime there also exist instantons whose finite imaginary action gives the probability of occurrence of the kink metric corresponding to single chargeless, nonrotating black ...
openaire   +4 more sources