Results 121 to 130 of about 207,815 (342)

Thermoelastic effects in Bragg reflectors as a potential bottleneck for XFELs with megahertz repetition rate

Communications Physics
Bragg reflectors are essential for beam transport in X-ray free-electron laser (XFEL) facilities. On interaction with Bragg reflectors, a part of the pulse energy will be absorbed, causing the propagation of displacement waves due to rapid thermal ...
Immo Bahns, Patrick Rauer, Jörg Rossbach, Sebastian Steinlechner, Harald Sinn   +4 more
doaj   +1 more source

Damping of gravitational waves by matter

, 2017
We develop a unified description, via the Boltzmann equation, of damping of gravitational waves by matter, incorporating collisions. We identify two physically distinct damping mechanisms -- collisional and Landau damping.
Baym, Gordon, Patil, Subodh P., Pethick, C. J.   +2 more
core   +2 more sources

Swift-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run [PDF]

, 2020
K. L. Page, P. A. Evans, A. Tohuvavohu, J. A. Kennea, N. J. Klingler, S. B. Cenko, S. R. Oates, E. Ambrosi, S. D. Barthelmy, A. P. Beardmore, M. G. Bernardini, A. A. Breeveld, P. J. Brown, D. N. Burrows, S. Campana, R. Caputo, G. Cusumano, A. D’Aì, P. D’Avanzo, V. D’Elia, M. de Pasquale, S. W. K. Emery, P. Giommi, C. Gronwall, D. H. Hartmann, H. A. Krimm, N. P. M. Kuin, D. Malesani, F. E. Marshall, A. Melandri, J. A. Nousek, P. T. O’Brien, J. P. Osborne, C. Pagani, M. J. Page, D. M. Palmer, M. Perri, J. L. Racusin, T. Sakamoto, B. Sbarufatti, Joshua E. Schlieder, M. H. Siegel, G. Tagliaferri, E. Troja   +43 more
openalex   +1 more source

Bioinspired Twisted Artificial Muscles with Enhanced Performance for Underwater Applications

Advanced Science, EarlyView.
A climbing plant‐inspired twisted artificial muscle (TAM) with a braided configuration and seal‐inspired thermal insulation enables high‐performance underwater actuation. Enhanced deformation, reduced heat dissipation, and rapid motion are validated through a bionic ray that exhibits straight and turning motions.
Jin Sun, Yuan Fu, Shijng Zhang, Jing Li, Dehong Wang, Junkao Liu, Yingxiang Liu   +6 more
wiley   +1 more source

Monte Carlo Evaluations of Gamma-Ray and Radio Pulsar Populations

The Astrophysical Journal
Based on well-grounded Galactic neutron star populations formed from radio pulsar population syntheses of canonical pulsars (CPs) and millisecond pulsars (MSPs), we use the latest Fermi Large Area Telescope catalog (4FGL-DR4) to investigate the ...
Shawaiz Tabassum, Duncan R. Lorimer
doaj   +1 more source

Suppressing Interfacial Instability of Immiscible Liquid‐in‐Liquid Flow Using Magnetic Forces

Advanced Science, EarlyView.
This paper investigates the magnetic stabilization of an immiscible inner liquid surrounded by a ferrofluid sheath. Suppressing instabilities and thermomagnetic manipulation of the inner liquid are shown. The results provide insight into Ferrohydrodynamic jet control for applications of industrial, pharmaceutical and physiological relevance.
Arvind Arun Dev, Gholamhossein Bagheri, Eberhard Bodenschatz, Thomas M. Hermans, Bernard Doudin   +4 more
wiley   +1 more source

Constrain the time variation of the gravitational constant via the propagation of gravitational waves

Physics Letters B
The gravitational constant variation means the breakdown of the strong equivalence principle. As the cornerstone of general relativity, the validity of general relativity can be examined by studying the gravitational constant variation.
Bing Sun, Jiachen An, Zhoujian Cao
doaj   +1 more source

Growth of massive black hole seeds by migration of stellar and primordial black holes: gravitational waves and stochastic background [PDF]

, 2021
Lumen Boco, Andrea Lapi, Alex Sicilia, Giulia Capurri, Carlo Baccigalupi, Luigi Danese, Lumen Boco, Andrea Lapi, Alex Sicilia, Giulia Capurri, Carlo Baccigalupi, Luigi Danese   +11 more
openalex   +1 more source

Super Time‐Resolved Tomography

Advanced Science, EarlyView.
A super time‐resolved tomography (STRT) approach is presented to reconstruct 4D X‐ray movies with an order‐of‐magnitude improvement in temporal resolution without sacrificing spatial resolution. By leveraging a physics‐informed deep learning algorithm that shares spatiotemporal features, STRT achieves high‐fidelity 3D reconstructions from sparse‐view ...
Zhe Hu, Zisheng Yao, Kalle Josefsson, Francisco García‐Moreno, Malgorzata Makowska, Yuhe Zhang, Pablo Villanueva‐Perez   +6 more
wiley   +1 more source

A solution of linearized Einstein field equations in vacuum used for the detection of the stochastic background of gravitational waves

, 2008
A solution of linearized Einstein field equations in vacuum is given and discussed. First it is shown that, computing from our particular metric the linearized connections, the linearized Riemann tensor and the linearized Ricci tensor, the linearized ...
Acernese, Allen, Capozziello, Capozziello, Capozziello, Christian Corda, Flanagan, Hild, Maggiore, Misner, Rakhmanov, Saulson, Tatsumi, Willke   +13 more
core   +1 more source