Results 111 to 120 of about 360,049 (372)

58th Open Seminar on Acoustics joined with 2nd Polish-German Structured Conference on Acoustics

open access: yesArchives of Acoustics, 2013
The 58th Open Seminar on Acoustics and 2nd Polish-German Structured Conference on Acoustics are organized by the Gdańsk Division of the Polish Acoustical Society, the latter jointly with the German Acoustical Society DEGA.
Roman Salamon   +2 more
doaj  

Asymptotic wave-splitting in anisotropic linear acoustics

open access: yes, 2009
Linear acoustic wave-splitting is an often used tool in describing sound-wave propagation through earth's subsurface. Earth's subsurface is in general anisotropic due to the presence of water-filled porous rocks.
B.L.G. Jonsson   +33 more
core   +1 more source

Sound Archaeology: A Study of the Acoustics of Three World Heritage Sites, Spanish Prehistoric Painted Caves, Stonehenge, and Paphos Theatre

open access: yesAcoustics, 2019
This paper explores the acoustics of three UNESCO World Heritage Sites: five caves in Spain that feature prehistoric paintings that are up to 40,000 years old; Stonehenge stone circle in England, which is over 4000 years old; and Paphos Theatre in Cyprus,
R. Till
semanticscholar   +1 more source

A Visible Light‐Responsive Hydrogel to Study the Effect of Dynamic Tissue Stiffness on Cellular Mechanosensing

open access: yesAdvanced Functional Materials, EarlyView.
A visible light‐responsive polyacrylamide‐azobenzene hydrogel enables safe, reversible stiffness control for studying cell mechanobiology without harmful UV exposure. This approach reveals stem cells respond rapidly to mechanical changes, showing altered shape and protein distribution within one hour.
Aafreen Ansari   +11 more
wiley   +1 more source

Dissertations

open access: yesArchives of Acoustics, 2014
1. Inverse problems in fish target strength estimation [in Polish] by Marek Moszyński, Department of Acoustics, Technical University of Gdańsk, 18 November 1997; 2.
Editorial Board Archives of Acoustics
doaj  

Publications in acoustics and noise control from the NASA Langley Research Center during 1940-1976 [PDF]

open access: yes
Reference lists are presented of published research papers in various areas of acoustics and noise control for the period 1940-1976. The references are listed chronologically and are grouped under the following general headings: (1) Duct acoustics; (2 ...
Fryer, B. A.
core   +1 more source

Approximation of a compressible Navier-Stokes system by non-linear acoustical models

open access: yes, 2015
We analyse the existing derivation of the models of non-linear acoustics such as the Kuznetsov equation, the NPE equation and the KZK equation. The technique of introducing a corrector in the derivation ansatz allows to consider the solutions of these ...
Rozanova-Pierrat, Anna
core   +3 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Space-time adaptive detection for bistatic MIMO system under covariance matrix persymmetry and symmetric spectrum

open access: yesThe Journal of Engineering, 2019
Space-time adaptive detection (STAD) is an important research aspect of the bistatic multiple-input multiple-output (MIMO) radar system. The signal and clutter space-time models of the bistatic MIMO radar are described in this study. The knowledge-aided (
Sheng Yan, Chengpeng Hao, Da Xu, Bo Shi
doaj   +1 more source

Miniature photonic-crystal hydrophone optimized for ocean acoustics

open access: yes, 2010
This work reports on an optical hydrophone that is insensitive to hydrostatic pressure, yet capable of measuring acoustic pressures as low as the background noise in the ocean in a frequency range of 1 Hz to 100 kHz.
Gordon S. Kino   +7 more
core   +1 more source

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