Results 61 to 70 of about 113,730 (333)

Liquid Crystal Elastomers Under Confinement: A Review of Template‐Based Fabrication and Applications

Advanced Engineering Materials, EarlyView.
Template‐assisted confinement offers powerful ways to control the alignment, structure, and function of liquid crystal elastomers. This review highlights several templating strategies and details how geometry and interfaces shape material responses.
Meng Zhang, Le Yang, Xinyi Ding, James Phillip Scarbrough, Tushar Narayan Singh, Yuxing Yao, Shucong Li, Xiaoguang Wang   +7 more
wiley   +1 more source

The Landscape of Collapsar Outflows: Structure, Signatures, and Origins of Einstein Probe Relativistic Supernova Transients

The Astrophysical Journal Letters
The Einstein Probe is revolutionizing time-domain astrophysics through the discovery of new classes of X-ray transients associated with broad-line Type Ic supernovae.
Ore Gottlieb
doaj   +1 more source

The Formation of Hard Very High Energy Spectra from Gamma-ray Burst Afterglows via Two-zone Synchrotron Self-Compton Emission

The Astrophysical Journal, 2023
Electron Compton scattering of target photons into the gamma-ray energy band (inverse Compton scattering; IC) is commonly expected to dominate the very high energy (VHE) spectra in gamma-ray bursts (GRBs) especially during the afterglow phase.
Dmitry Khangulyan, Andrew M. Taylor, Felix Aharonian   +2 more
doaj   +1 more source

Ultrahigh-Energy Photons as a Probe of Nearby Transient Ultrahigh-Energy Cosmic-Ray Sources and Possible Lorentz-Invariance Violation

, 2009
Detecting neutrinos and photons is crucial to identifying the sources of ultrahigh-energy cosmic rays (UHECRs), especially for transient sources. We focus on ultrahigh-energy gamma-ray emission from transient sources such as gamma-ray bursts, since >EeV ...
J. Rachen, Kohta Murase, R. J. Protheroe   +2 more
core   +1 more source

A Search for Cosmic Neutrino and Gamma-Ray Emitting Transients in 7.3 yr of ANTARES and Fermi LAT Data [PDF]

Astrophysical Journal, 2019
We analyze 7.3 yr of ANTARES high-energy neutrino and Fermi Large Area Telescope (LAT) γ-ray data in search of cosmic neutrino + γ-ray (ν+γ) transient sources or source populations. Our analysis has the potential to detect either individual ν+γ transient
H. A. A. Solares, D. Cowen, J. DeLaunay, D. Fox, A. Keivani, M. Mostafá, K. Murase, C. Turley, A. Albert, M. André, M. Anghinolfi, G. Anton, M. Ardid, J. Aubert, J. Aublin, B. Baret, J. Barrios-Martí, S. Basa, B. Belhorma, V. Bertin, S. Biagi, R. Bormuth, J. Boumaaza, S. Bourret, M. Bouta, M. Bouwhuis, H. Brânzas, R. Bruijn, J. Brunner, J. Busto, A. Capone, L. Caramete, J. Carr, S. Celli, M. Chabab, R. E. El Moursli, T. Chiarusi, M. Circella, A. Coleiro, M. Colomer, R. Coniglione, H. Costantini, P. Coyle, A. Creusot, A. Díaz, A. Deschamps, C. Distefano, I. Palma, A. Domi, R. Donà, C. Donzaud, D. Dornic, D. Drouhin, T. Eberl, I. Bojaddaini, N. Khayati, D. Elsässer, A. Enzenhöfer, A. Ettahiri, F. Fassi, P. Fermani, G. Ferrara, L. Fusco, P. Gay, H. Glotin, R. Gozzini, T. Grégoire, R. G. Ruiz, K. Graf, S. Hallmann, H. Haren, A. Heijboer, Y. Hello, J. Hernández-Rey, J. Hößl, J. Hofestädt, G. Illuminati, C. James, M. Jong, M. Jongen, M. Kadler, O. Kalekin, U. Katz, N. R. Khan-Chowdhury, A. Kouchner, M. Kreter, I. Kreykenbohm, V. Kulikovskiy, R. Lahmann, R. Breton, D. Lefèvre, E. Leonora, G. Levi, M. Lincetto, D. López-Coto, M. Lotze, S. Loucatos, G. Maggi, M. Marcelin, A. Margiotta, A. Marinelli, J. Martínez-Mora, R. Mele, K. Melis, P. Migliozzi, A. Moussa, S. Navas, E. Nezri, C. Nielsen, A. Núñez, Mukharbek Organokov, G. Pavalas, C. Pellegrino, M. Perrin-Terrin, P. Piattelli, V. Popa, T. Pradier, L. Quinn, C. Racca, N. Randazzo, G. Riccobene, A. Sánchez-Losa, A. Salah-Eddine, I. Salvadori, D. Samtleben, M. Sanguineti, P. Sapienza, F. Schüssler, M. Spurio, T. Stolarczyk, M. Taiuti, Y. Tayalati, T. Thakore, A. Trovato, B. Vallage, V. Elewyck, F. Versari, S. Viola, D. Vivolo, J. Wilms, D. Zaborov, J. Zornoza, J. Zúñiga   +142 more
semanticscholar   +1 more source

Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification

Advanced Engineering Materials, EarlyView.
A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu, Paul Hans Kamm, Francisco García‐Moreno   +2 more
wiley   +1 more source

Is Gamma-Ray Burst 221009A Really a Once-in-10,000 yr Event?

The Astrophysical Journal
Gamma-ray bursts (GRBs) brighter than the GRB 221009A, the brightest yet observed, have previously been estimated to occur at a rate of one per 10,000 yr, based on the extrapolation of the distribution of fluences of the long-GRB population. We show that
Justin D. Finke, Soebur Razzaque
doaj   +1 more source

In-flight Energy Calibration of the GECAM Gamma-ray Detectors

Research in Astronomy and Astrophysics
The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission is designed to monitor the Gamma-Ray Bursts (GRBs) associated with gravitational waves and other high-energy transient sources.
Rui Qiao, D. Guo, Wenxi Peng, Yan-Qiu Zhang, Shuo Xiao, Shaolin Xiong, C. Zheng, Chaoyang Li, Jia-Cong Liu, W. Xue, Jian-Jian He, Zheng-Hua An, Dali Zhang, Xin-Qiao Li, Liming Song, Shijie Zheng, K. Gong, Ya-qing Liu, Xinying Song, Xiao-Yun Zhao, X. Wen, Yanbing Xu, Xiang Ma, Xiao-Bo Li, Ping Wang, Yue Huang, Ce Cai, Qibin Yi, Yi Zhao, Chenwei Wang   +29 more
semanticscholar   +1 more source

Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao, Ryosuke Nitta, Seiichiro Izawa, Jun‐ichi Yamaura, Yutaka Majima   +4 more
wiley   +1 more source

GRB 211024B: An Ultra-long GRB Powered by Magnetar

The Astrophysical Journal
Ultra-long gamma-ray bursts are characterized by exceptionally long-duration central engine activities, with characteristic timescales exceeding 1000 s. We present ground-based optical afterglow observations of the ultra-long gamma-ray burst GRB 211024B,
Shao-Yu Fu, Dong Xu, Wei-Hua Lei, Antonio de Ugarte Postigo, Daniele B. Malesani, David Alexander Kann, Páll Jakobsson, Johan P. U. Fynbo, Elisabetta Maiorano, Andrea Rossi, Diego Paris, Xing Liu, Shuai-Qing Jiang, Tian-Hua Lu, Jie An, Zi-Pei Zhu, Xing Gao, Jian-Yan Wei   +17 more
doaj   +1 more source