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This manuscript investigates the potential effect of a nuclear-disturbed atmospheric environment on the signal attenuation of a ground/satellite transmitter/receiver system for both classical optical and quantum communications applications.…

We experimentally investigate the Leidenfrost effect at pressures ranging from 1 to 0.05 atmospheric pressure. As a direct consequence of the Clausius-Clapeyron phase diagram of water, the droplet temperature can be at ambient temperature…

Soft Condensed Matter · Physics 2013-08-06 Franck Celestini , Thomas Frisch , Yves Pomeau

Greenhouse gases, most importantly water vapor, increase the emissivity and decrease the albedo of clouds for thermal radiation. The modifications, which can be of order 10% for optically thick clouds, depend on the attenuation coefficient…

Atmospheric and Oceanic Physics · Physics 2024-01-09 W. A. van Wijngaarden , W. Happer

The atmospheric neutrino anomaly is the apparent reduction of the $\nu_{\mu}/\nu_{e}$ ratio observed in underground detectors. It represents either a reduction in the muon neutrino interaction rate or an excess of the electron neutrino…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. M. LoSecco

The attenuation of small-amplitude acoustic waves in a suspension containing ultrasound contrast agents (UCAs, coated microbubbles) is determined by the linear oscillation of the UCAs in the medium, which can be estimated via a linear…

Fluid Dynamics · Physics 2019-08-26 Lang Xia

When water molecules are confined to nanoscale spacings, such as in the nanometer size pores of activated carbon fiber (ACF), their freezing point gets suppressed down to very low temperatures ($\sim$ 150 K), leading to a metastable liquid…

Soft Condensed Matter · Physics 2015-06-23 S. O. Diallo , L. Vlcek , E. Mamontov , J. K. Keum , Jihua Chen , J. S. Hayes , A. A. Chialvo

Even at room temperature, quantum mechanics plays a major role in determining the quantitative behaviour of light nuclei, changing significantly the values of physical properties such as the heat capacity. However, other observables appear…

The atmospheric attenuation of Cherenkov photons is dominated by two processes: Rayleigh scattering from the molecular component and Mie scattering from the aerosol component. Aerosols are expected to contribute up to 30 Wm$^{-2}$ to the…

Instrumentation and Methods for Astrophysics · Physics 2014-08-01 M. K. Daniel , Y. T. E. Lo , P. M. Chadwick

At low temperatures, elementary excitations of a one-dimensional quantum liquid form a gas that can move as a whole with respect to the center of mass of the system. This internal motion attenuates at exponentially long time scales. As a…

Mesoscale and Nanoscale Physics · Physics 2018-11-07 K. A. Matveev , A. V. Andreev

Sound waves are attenuated as they propagate in amorphous materials. We investigate the mechanism driving sound attenuation in the Rayleigh scattering regime by resolving the dynamics of an excited phonon in time and space via numerical…

Soft Condensed Matter · Physics 2024-01-18 Shivam Mahajan , Massimo Pica Ciamarra

Results of the measurements of sound speed and attenuation in a bubbly medium are reported. Monodisperse bubble solutions are sonicated with broadband ultrasound pulses with pressure amplitudes ranging between 12.5-100 kPa. Fundamental…

Fluid Dynamics · Physics 2018-11-20 A. J. Sojahrood , Q. Li , H. Haghi , R. Karshafian , T. M. Porter , M. C. Kolios

Fundamental inorganic chemistry shows that increasing concentrations of atmospheric CO2 will have no harmful effect on organisms that live in the natural waters of the Earths, and may well benefit them. Alkalinity and dissolved CO2 give…

Atmospheric and Oceanic Physics · Physics 2026-05-13 W. A. van Wijngaarden , P. Ridd , M. Cornell , W. Happer

The attenuation of the electron shower size beyond the shower maximum is studied with the KASCADE extensive air shower experiment in the primary energy range of about $10^{14}-10^{16}$ eV. Attenuation and absorption lengths are determined…

Astrophysics · Physics 2019-08-14 T. Antoni

Dye attenuation, or photometric imaging, is an optical technique commonly used in fluid dynamics to measure tracer concentration fields and fluid thicknesses under the assumption that the motion of the dye is representative of the fluid…

Fluid Dynamics · Physics 2024-11-04 George T. Fortune , Merlin A. Etzold , Julien R. Landel , Stuart B. Dalziel

We propose a mechanism for the damping of short ocean gravity waves during rainstorms associated with the injection of air bubbles by rain drops. The mechanism is proposed as one of the possible explanations that ascribe to rain a calming…

Fluid Dynamics · Physics 2018-12-27 Juan M. Restrepo , Alex Ayet , Luigi Cavaleri

Behavior of the photoacoustic signal produced by nanoparticles as a function of their concentration was studied in detail. As the concentration of nanoparticles is increased in a sample, the peak-to-peak photoacoustic amplitude increases…

Experiments investigating the attenuation and dispersion of surface waves in a variety of ice covers are performed using a refrigerated wave flume. The ice conditions tested in the experiments cover naturally occurring combinations of…

Atmospheric and Oceanic Physics · Physics 2019-02-15 L. J. Yiew , S. M. Parra , D. Wang , D. K. K. Sree , A. V. Babanin , A. W. -K. Law

Understanding the pressure-dependent dielectric properties of water is crucial for a wide range of scientific and practical applications. In this study, we employ a deep neural network trained on density functional theory data to…

Materials Science · Physics 2026-03-31 Yizhi Song , Xifan Wu

The bubble nucleation in superheated liquid can be controlled by adjusting the ambient pressure and temperature. At higher pressure the threshold energy for bubble nucleation increases and we have observed that the amplitude of the acoustic…

Instrumentation and Detectors · Physics 2017-08-23 Rupa Sarkar , Prasanna Kumar Mondal , Barun Kumar Chatterjee

An experiment is described that enables students to understand the properties of atmospheric extinction due to Rayleigh scattering. The experiment requires the use of red, green and blue lasers attached to a travelling microscope or similar…

Physics Education · Physics 2015-11-12 Stephen W. Hughes , Michael J. Cowley , Sean Powell , Joshua Carroll