Results 131 to 140 of about 796,323 (348)

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Quasinormal modes of brane-localized standard model fields. II. Kerr black holes [PDF]

, 2006
Panagiota Kanti, R. A. Konoplya, A. Zhidenko   +2 more
openalex   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Phase transition and heat engine efficiency of phantom AdS black holes

European Physical Journal C: Particles and Fields, 2018
Phase transition and heat engine efficiency of phantom AdS black holes are investigated with peculiar properties found. In the non-extended phase space, we probe the possibility of T–S criticality in both the canonical ensemble and grand-canonical ...
Jie-Xiong Mo, Shan-Quan Lan
doaj   +1 more source

Accreting Black Holes

, 2019
This chapter provides a general overview of the theory and observations of black holes in the Universe and on their interpretation. We briefly review the black hole classes, accretion disk models, spectral state classification, the AGN classification ...
A Heger, A Heger, A Ingram, A Lohfink, A Marinucci, A Tchekhovskoy, A Tchekhovskoy, A Zoghbi, AC Fabian, AC Fabian, AC Fabian, AK Kulkarni, AL King, AM El-Batal, AM Ghez, AM Lohfink, AR King, AR King, AR King, AR Patrick, BP Abbott, BR McNamara, C Nipoti, CE Rhoades, CM Urry, CS Reynolds, CY Chiang, DJ Walton, DJ Walton, DJ Walton, DJ Walton, DL Meier, DM Russell, DN Page, DR Pasham, E Agol, E Berti, E Gallo, E Maoz, E Nardini, EJM Colbert, F Haardt, F Haardt, FX Timmes, G Ghisellini, G Lodato, G Miniutti, G Risaliti, H Bondi, H Falcke, I Shlosman, IF Mirabel, J Casares, J Garcia, J Garcia, J Homan, J Kormendy, J Singal, JA Garcia, JA Tomsick, JA Zensus, JE Barnes, JE McClintock, JE McClintock, JE McClintock, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JF Steiner, JM Bardeen, JM Lattimer, JM Miller, JM Miller, JM Miller, JM Wang, K Akiyama, K Belczynski, K Gebhardt, K Gebhardt, K Mitsuda, K Ohsuga, KS Thorne, L Brenneman, L Ferrarese, L Gou, L Gou, L Gou, L Gou, L Mayer, L Stella, LC Gallo, LW Brenneman, LW Brenneman, LW Brenneman, LX Li, M Gierlinski, M Jaroszynski, M Kolehmainen, M Middleton, M Postman, M Sikora, M Volonteri, M Volonteri, M Volonteri, M Volonteri, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MA Abramowicz, MJ Reid, ML Parker, ML Parker, ML Parker, N White, NI Shakura, P Madau, PC Fragile, PD Kiel, R Fender, R Narayan, R Narayan, R Narayan, R Shafee, RA Remillard, RA Sunyaev, RA Sunyaev, RC Reis, RC Reis, RC Reis, RC Reis, RC Reis, RD Blandford, RD Blandford, RF Penna, RG Martin, RG Martin, RP Fender, RV Vasudevan, S Kumar, S Sun, SA Hughes, SC Yoon, SE Motta, SE Motta, SE Woosley, SL Shapiro, SN Zhang, T Dauser, T Fragos, T Fragos, TM Belloni, V Kalogera, VV Zhuravlev, WM Farr, Y Tan, Y Xu   +159 more
core   +1 more source

Asymptotic black holes [PDF]

Classical and Quantum Gravity, 2017
Following earlier works on the KMY model of black-hole formation and evaporation, we construct the metric for a matter sphere in gravitational collapse, with the back-reaction of pre-Hawking radiation taken into consideration. The mass distribution and collapsing velocity of the matter sphere are allowed to have an arbitrary radial dependence.
openaire   +2 more sources

Deciphering Small Molecule Diffusion Parameters Across Light Responsive Polymersome Membranes

Advanced Functional Materials, EarlyView.
Light‐responsive polymersomes bearing donor–acceptor Stenhouse adducts (DASAs) enable programmable control over small‐molecule transport across synthetic membranes. By systematically varying DASA density, an optimal functionalization regime is identified that maximizes light‐gated permeability.
Farzina Matubbar, Beyzanur Kaya, Buse Ipek, Tenzin Dorjee, Shoghik Hakobyan, Mohamed Chami, Julien E. Gautrot, Omar Rifaie‐Graham   +7 more
wiley   +1 more source

Black Hole Accretion and Spin-up through Stellar Collisions in Dense Star Clusters

The Astrophysical Journal
Dynamical interactions in dense star clusters could significantly influence the properties of black holes, leaving imprints on their gravitational-wave signatures.
Fulya Kıroğlu, Kyle Kremer, Sylvia Biscoveanu, Elena González Prieto, Frederic A. Rasio   +4 more
doaj   +1 more source

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

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source