Results 61 to 70 of about 1,660,853 (215)

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

Perturbation in the atmospheric acoustic field from a large offshore wind farm in the presence of surface gravity waves [PDF]

, 2013
In this study a quantitatively reliable approximation of atmospheric sound wave propagation is given in the presence of a large wind farm. Rough sea surface is used as lower boundary condition at the sea surface, and an acoustic point source located at ...
Paskyabi, Mostafa Bakhoday
core   +1 more source

Enhanced Acoustic Adhesion Enabling Agile and Small Wall‐Climbing Robot Design With Anisotropic Origami Structure

Advanced Science, EarlyView.
This 28 g robot incorporates innovative ring structures and anisotropic origami springs to achieve high speeds and exceptional load capacity. It successfully carries a 100 g payload while ascending walls or ceilings at speeds of up to 8 and 20 cm/s, demonstrating enhanced adhesion and maneuverability over current climbing robots.
Xinxian Chen, Kanglong Yuan, Ao Qin, Yikun Liu, Yusen Ma, Jun Peng   +5 more
wiley   +1 more source

Solitary wave solutions in plasma physics and acoustic gravity waves of some nonlinear evolution equations through enhanced MSE method

Journal of Physics Communications, 2019
In this work, we probe the Gardner equation and the modified Benjamin-Bona-Mahony (mBBM) equation associated with plasma physics, acoustic-gravity waves in fluid mechanics, hydro-magnetic waves in cold plasma etc Exact wave solutions to the mentioned ...
M. Islam, M. Roshid, A. K. M. Lutfor Rahman, M. Akbar   +3 more
semanticscholar   +1 more source

Disturbances of the Thermosphere and the Ionosphere during a Meteorological Storm

Atmosphere, 2021
Determination of the physical mechanisms of energy transfer of tropospheric disturbances to the ionosphere is one of the fundamental problems of atmospheric physics. This article presents the results of observations carried out using two-wavelength lidar
Olga P. Borchevkina, Yuliya A. Kurdyaeva, Yurii A. Dyakov, Ivan V. Karpov, Gennady V. Golubkov, Pao K. Wang, Maxim G. Golubkov   +6 more
doaj   +1 more source

Interface Rectification via Roll‐to‐Roll Dual‐Confinement Nanocoatings for High‐Temperature Polymer Capacitors

Advanced Science, EarlyView.
Dual confinement in self‐assembled nanocoatings regulates polymer dynamics and hot‐carrier transport, enabling an interface‐rectification strategy for high‐temperature polymer capacitive energy storage. ABSTRACT Polymer film capacitors are indispensable for energy storage and power conversion, yet their energy density and efficiency deteriorate rapidly
Ning Guo, Marina Dabaghian, Jierui Zhou, Josh N. Bodin, Chong Xiang, Fei Wang, Antigoni Konstantinou, Dingxin Wei, Yifei Wang, Chao Wu, Riccardo Casalini, Bryan Huey, Priya Vashishta, Luyi Sun, Yang Cao   +14 more
wiley   +1 more source

Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]

, 2006
International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066), A. Senior, M. J. Kosch (7595327), I. W. McCrea, M. T. Rietveld (7594184), Rietveld, M. T., Senior, A., T. K. Yeoman, I. W. McCrea (7594871), M. T. Rietveld, Kosch, M. J., M. J. Kosch, A. Senior (3255282), McCrea, I. W., Yeoman, T. K.   +14 more
core   +2 more sources

Acoustic–gravity waves and their role in the ionospheric D region–lower thermosphere interaction [PDF]

Annales Geophysicae
The properties of acoustic–gravity waves (AGWs) in the ionospheric D layer and their role in the D layer–lower thermosphere interaction are studied using the dispersion equation and the reflection coefficient.
G. Jovanovic
doaj   +1 more source

Wavemaker theories for acoustic–gravity waves over a finite depth [PDF]

Journal of Engineering Mathematics, 2016
Acoustic–gravity waves (hereafter AGWs) in ocean have received much attention recently, mainly with respect to early detection of tsunamis as they travel at near the speed of sound in water which makes them ideal candidates for early detection of ...
M. Tian, U. Kadri
semanticscholar   +1 more source

EHD‐LIFT: Electrohydrodynamic Laser Induced Forward Transfer

Advanced Science, EarlyView.
Electrohydrodynamic laser‐induced forward transfer (EHD‐LIFT) introduces electric field‐assisted control to LIFT. Through laser‐patterning a conductive absorber layer, local curvatures are induced in the donor film, enabling flow‐focusing for transfer of smaller droplets at lower laser energies.
Ankit Das, Jordi Torres‐Durall, J. Marcos Fernández‐Pradas, Chien‐Fang Ding, Martí Duocastella, Craig B. Arnold   +5 more
wiley   +1 more source