Results 91 to 100 of about 29,418 (229)

Cherenkov radiation by particles traversing the background radiatio n [PDF]

, 2002
High energy particles traversing the Universe through the cosmic microwave backgroung radiation can, in principle, emit Cherenkov radiation. It is shown that the energy threshold for this radiation is extremely high and its intensity would be too low due
B. Tollis De, I. E. Tamm, I. M. Dremin, I. M. Dremin, M. L. Goldberger, M. Thoma, R. Karplus, V. A. Maisheev   +7 more
core   +2 more sources

Current status and future perspectives of multi‐modal bacteria‐based cancer therapies

Clinical and Translational Medicine, Volume 15, Issue 10, October 2025.
Bacteria exhibit inherent tumour‐targeting capabilities, particularly thriving in hypoxic tumour microenvironments (TMEs) and activating potent anti‐tumour immune responses through pathogen‐associated molecular patterns (PAMPs) and immunomodulation.
Shuai Fan, Siyu Zhu, Wenyu Wang, Yuetong Liu, Yutong Zhou, Hao Li, Bofeng Liu, Qin Xia, Lili Huang, Lei Dong   +9 more
wiley   +1 more source

Radiation from an oscillator uniformly moving along the axis of a dielectric cylinder

, 2004
The radiation generated by a charged longitudinal oscillator moving with a constant drift velocity along the axis of a dielectric cylinder immersed in a homogeneous medium is investigated.
A.A. Saharian, A.S. Kotanjyan, Arzumanian, Bolotovsky, Brau, Epp, Grigoryan, Grigoryan, Khachatryan, Kostanyan, Kostanyan, Kostanyan, Kotanjyan, Kotanjyan, Kotanjyan, Kotanjyan, Kukanov, Luchini, Mkrtchyan, Mkrtchyan, Mkrtchyan, Nikitin, Prudnikov, Saharian, Saharian   +24 more
core   +1 more source

Quasi‐Constant Time Gap in Multiple Rings of Elves

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract We present evidence that the time delay between the multiple rings of elves is not caused by the ground reflection of the electromagnetic pulse produced by intracloud lightning. To investigate temporal differences of multi‐elves, we analyzed data from four storms occurring at various times and distances from the Pierre Auger Observatory in ...
The Pierre Auger Collaboration
wiley   +1 more source

Thermionics in Topological Materials

Advanced Materials, Volume 37, Issue 36, September 11, 2025.
Thermionics is one of the fundamental energy conversion mechanisms in solid state systems. Recent development in topological materials opens new avenues in developing thermionic systems and devices. Due to the linear energy dispersion and topological protection of charge transport, these new materials are promising candidates for high efficiency ...
Sunchao Huang, Zihao Zhang, Youfeng Yang, Yuan Zheng, Abdullah Al‐Mamun, Shaomeng Wang, Zhi Li, Yubin Gong, Chao Zhang   +8 more
wiley   +1 more source

Nonperturbative Quantum Electrodynamics in the Cherenkov Effect

Physical Review X, 2018
Quantum electrodynamics (QED) is one of the most precisely tested theories in the history of science, giving accurate predictions to a wide range of experimental observations.
Charles Roques-Carmes, Nicholas Rivera, John D. Joannopoulos, Marin Soljačić, Ido Kaminer   +4 more
doaj   +1 more source

Playing Hard with Si: Challenges and Opportunities for New Materials in Radiation Therapy Dosimetry

Advanced Materials, Volume 37, Issue 36, September 11, 2025.
Silicon has been a cornerstone material of radiation therapy dosimetry for many decades, providing somewhat unchallenged performance. However, there are caveats to its use, requiring complex designs and, often, correction factors to provide accurate measurements.
James Cayley, Ilia Filipev, Jeremy A. Davis, Vincent de Rover, Dean Cutajar, Enbang Li, Bradley M. Oborn, Marco Petasecca, Anatoly Rosenfeld, Michael L. F. Lerch   +9 more
wiley   +1 more source

Quantum Cherenkov radiation and noncontact friction [PDF]

Physical Review A, 2013
We present a number of arguments to demonstrate that a quantum analog of Cherenkov effect occurs when two dispersive objects are in relative motion. Specifically we show that two semi-infinite plates experience friction beyond a threshold velocity which, in their center-of-mass frame, is the phase speed of light within their medium.
Golestanian, Ramin, Kardar, Mehran, Faghfoor Maghrebi, Mohammad   +2 more
openaire   +5 more sources

Information Technologies on High-Energy Astrophysics: Cosmic Ray Anisotropy using HAWC Observatory [PDF]

EPJ Web of Conferences, 2019
The detection of astroparticles, specially at high energies (>100 GeV), requires special techniques and instruments (telescopes or observatories), for example, those that use the Water Cherenkov radiation technique.
de la Fuente Eduardo, Díaz–Vélez Juan Carlos, Desiati Paolo, García–Luna Jose Luis, Torrealba Janet, Gúzman–Alcála Ricardo   +5 more
doaj   +1 more source

Asymmetric Cherenkov acoustic reverse in topological insulators

, 2014
A general phenomenon of the Cherenkov radiation known in optics or acoustics of conventional materials is a formation of a forward cone of, respectively, photons or phonons emitted by a particle accelerated above the speed of light or sound in those ...
Smirnov, Sergey
core   +1 more source