Results 21 to 30 of about 1,105,144 (286)

Evaluating the applicability of a screen diffraction approximation to local volcano infrasound

open access: yesVolcanica, 2021
Atmospheric acoustic waves from volcanoes at infrasonic frequencies (0.01–20 Hz) can be used to estimate source parameters for hazard modeling, but signals are often distorted by wavefield interactions with topography, even at local recording distances (
Sean Maher   +4 more
doaj   +1 more source

Nuclear Attenuation of high energy two-hadron system in the string model [PDF]

open access: yes, 2006
Nuclear attenuation of the two-hadron system is considered in the string model. The two-scale model and its improved version with two different choices of constituent formation time and sets of parameters obtained earlier for the single hadron ...
A. Accardi   +22 more
core   +2 more sources

Validation of the laboratory measurements at seismic frequencies using the Kramers‐Kronig relationship

open access: yesGeophysical Research Letters, 2016
We present a simple procedure concerning the application of the Kramers‐Kronig relation for the validation of the laboratory measurements of the extensional attenuation and Young's modulus carried out on the solid specimens at seismic frequencies.
Vassily Mikhaltsevitch   +2 more
doaj   +1 more source

The Role of Solid Amendments in Promoting the Accelerated Anaerobic Bioremediation of Groundwater Containing High Concentrations of cis- 1,2-Dichloroethene

open access: yesRevista Águas Subterrâneas, 2013
In-situ anaerobic bioremediation is an elegant method for decontaminating groundwater containing halogenated hydrocarbons and other toxic contaminants.
JOHN FREIM   +4 more
doaj   +2 more sources

Lipopolysaccharide and toll-like receptor 4 in dogs with congenital portosystemic shunts [PDF]

open access: yes, 2015
Surgical attenuation of a congenital portosystemic shunt (CPSS) results in increased portal vein perfusion, liver growth and clinical improvement. Portal lipopolysaccharide (LPS) is implicated in liver regeneration via toll-like receptor (TLR) 4 mediated
House, A K   +4 more
core   +4 more sources

Numerical Analysis of Ultrasonic Multiple Scattering for Fine Dust Number Density Estimation

open access: yesApplied Sciences, 2021
In this study, a method is presented for estimating the number density of fine dust particles (the number of particles per unit area) through numerical simulations of multiply scattered ultrasonic wavefields.
Homin Song, Ukyong Woo, Hajin Choi
doaj   +1 more source

New Seismic Attenuation System (SAS) for the Advanced LIGO Configurations (LIGO2) [PDF]

open access: yes, 2000
A new passive seismic attenuation system is being developed to replace the current passive attenuation stacks in LIGO 2, it is expected to drive the seismic contribution to the interferometer noise below any other noise source.
Bertolini, Alessandro   +6 more
core   +1 more source

Average BER Performance Estimation of Relayed THz Links with Losses, Molecular Attenuation, Adverse Weather Conditions, Turbulence and Generalized Pointing Errors

open access: yesPhotonics, 2022
In recent years, the THz frequency band (0.3 THz–10 THz) has attracted an increasing research interest for the realization of emerging high-speed wireless communication links.
George K. Varotsos   +2 more
doaj   +1 more source

Nebular Attenuation in H\alpha-selected Star-forming Galaxies at z=0.8 from the NewH\alpha\ Survey

open access: yes, 2012
We present measurements of the dust attenuation of H\alpha-selected emission-line galaxies at z=0.8 from the NewH\alpha\ narrowband survey. The analysis is based on deep follow-up spectroscopy with Magellan/IMACS, which captures the strong rest-frame ...
Abraham   +79 more
core   +1 more source

Spectroscopic Measurements of the Far-Ultraviolet Dust Attenuation Curve at z~3 [PDF]

open access: yes, 2016
We present the first measurements of the shape of the far-ultraviolet (far-UV; lambda=950-1500 A) dust attenuation curve at high redshift (z~3). Our analysis employs rest-frame UV spectra of 933 galaxies at z~3, 121 of which have very deep spectroscopic ...
Bogosavljevic, Milan   +3 more
core   +3 more sources

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