Results 61 to 70 of about 145,247 (288)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Simulation of the growth of the 3D Rayleigh-Taylor instability in Supernova Remnants using an expanding reference frame [PDF]

, 2010
Context: The Rayleigh-Taylor instabilities generated by the deceleration of a supernova remnant during the ejecta-dominated phase are known to produce finger-like structures in the matter distribution which modify the geometry of the remnant.
A. Decourchelle, Bamba, Bell, Bietenholz, Cassam-Chenaï, Chevalier, Chevalier, Chevalier, Decourchelle, Dumbser, Dwarkadas, Dwarkadas, Ellison, F. Fraschetti, Fesen, Giacalone, Gnedin, Gnedin, Gull, Gull, Hoyle, Hughes, J. Ballet, Johnsen, Jun, Kane, Kaps, Kifonidis, Lagage, Laming, Lazendic, Martel, Nishikawa, Pandolfi, Poludnenko, Quirk, R. Teyssier, Rothenflug, Shirkey, Shyue, Smith, Stone, Teyssier, Truelove, Vink, Vink, Wang, Warren, Xu, Young   +49 more
core   +4 more sources

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Atomic interaction effects in the superradiant light scattering from a Bose-Einstein condensate [PDF]

, 2003
We investigate the effects of the atomic interaction in the Superradiant Rayleigh scattering from a Bose-Einstein condensate driven by a far-detuned laser beam.
D. Schneble, D.J. Wineland, G. R. M. Robb, M. Kozuma, M.G. Moore, M.G. Moore, N. Piovella, N. Piovella, N. Piovella, N. Skribanowitz, Ph.W. Courteille, R. Bonifacio, R. Bonifacio, R. Bonifacio, R. Bonifacio, S. Inouye, S. Inouye, V. Beretta   +17 more
core   +4 more sources

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

The influence of adsorbed atoms concentration on the temperature coefficient of resonant frequency of the quasi-Rayleigh wave

Condensed Matter Physics, 2021
Within the model of self-consistent connection of quasi-Rayleigh wave with adsorbed atoms, a method of constructing a new class of radiometric sensors of the temperature and concentration of adsorbed atoms on the surface acoustic waves is proposed. Based
M.Ya. Seneta, R.M. Peleshchak, A.I. Nesterivskyi, N.I. Lazurchak, S.K. Guba   +4 more
doaj   +1 more source

Thermalization of matter waves in speckle potentials

, 2015
We show that the momentum distribution of a nonlinear matter wave suddenly released with a finite velocity in a speckle potential converges, after an out-of-equilibrium evolution, to a universal Rayleigh-Jeans thermal distribution.
Cherroret, Nicolas, Grémaud, Benoît, Karpiuk, Tomasz, Miniatura, Christian   +3 more
core   +1 more source

Kamlah Expansion and Gauge Theories [PDF]

, 2002
In Yang-Mills theories, variational calculations of the Rayleigh-Ritz type face the problem that on the one hand, calculability puts severe constraints on the space of test wave functionals; on the other hand, the test wave functionals have to be gauge ...
Bhaduri, Blaizot, Brown, Cea, Christ, Greensite, Heinemann, Huang, Hugo Reinhardt, Jackiw, Kamlah, Kerman, Kerman, Kerman, Kogan, Levit, Mang, Marshalek, Marshalek, Oliver Schröder, Polyakov, Ring, Schröder, Sorensen, Villars, Villars, Zarembo   +26 more
core   +2 more sources

Rayleigh wave nonlinearity [PDF]

The Journal of the Acoustical Society of America, 1993
The elastic nonlinearity in Rayleigh waves is investigated theoretically. Studies have revealed that nonlinearity in Rayleigh waves involves nonlocal as well as local effects [Parker and Talbot, J. Elast. 15, 389 (1985)]. Finite amplitude effects on sound in fluids are entirely local, and the effects on different wavelets are therefore independent.
Mark F. Hamilton, Yuri A. Il’insky, Evgenia A. Zabolotskaya   +2 more
openaire   +1 more source

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

Advanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang, Byeongseok Ryu, Sujeong Ahn, Junhyub Kim, Myeonghun Jang, Jeong Ho Cho, Won‐Gun Koh, Hyungsuk Lee   +7 more
wiley   +1 more source