Results 41 to 50 of about 109,668 (295)

Surface acoustic wave microfluidics [PDF]

Lab on a Chip, 2013
The recent introduction of surface acoustic wave (SAW) technology onto lab-on-a-chip platforms has opened a new frontier in microfluidics. The advantages provided by such SAW microfluidics are numerous: simple fabrication, high biocompatibility, fast fluid actuation, versatility, compact and inexpensive devices and accessories, contact-free particle ...
Xiaoyun, Ding, Peng, Li, Sz-Chin Steven, Lin, Zackary S, Stratton, Nitesh, Nama, Feng, Guo, Daniel, Slotcavage, Xiaole, Mao, Jinjie, Shi, Francesco, Costanzo, Tony Jun, Huang   +10 more
openaire   +2 more sources

Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension [PDF]

, 2009
Aims: We analyse numerically the propagation and dispersion of acoustic waves in the solar-like sub-photosphere with localised non-uniform magnetic field concentrations, mimicking sunspots with various representative magnetic field configurations ...
Shelyag, S., Thompson, Michael John, Zharkov, Sergei, Zharkov, S., M. J. Thompson, Fedun, V., S. Zharkov, Shelyag, Sergiy, Erdélyi, Robert, Erdelyi, R., R. Erdélyi, S. Shelyag, V. Fedun, Thompson, M.J., Fedun, Viktor   +14 more
core   +1 more source

Experiments on wave turbulence : the evolution and growth of second sound acoustic turbulence in superfluid 4He confirm self-similarity. [PDF]

, 2010
We report our experiments on the formation of second sound acoustic turbulence in superfluid 4He. The initial growth in spectral amplitude follows power laws that steepen rapidly with increasing harmonic number n, corresponding to a propagating front in ...
P V E McClintock, G V Kolmakov, Efimov, V. B., Ganshin, A. N., Mezhov-Deglin, L. P., McClintock, P. V. E., L P Mezhov-Deglin, A N Ganshin, Kolmakov, G. V., V B Efimov   +9 more
core   +1 more source

Modified Green's Functions for Shallow Water Acoustic Wave Propagation

, 2004
This article presents an assessment of alternative forms of the Green’s function for boundary element simulations of acoustic wave propagation in shallow water. It is assumed that the problem is two-dimensional, the source of acoustic disturbance is time-
Santiago, J A F S, Wrobel, L C
core   +1 more source

Acoustic focusing effect based on artificial periodic structure

AIP Advances, 2019
To achieve high-efficiency acoustic focusing, an artificial periodic acoustic structure composed of two-dimensional three-component cell arrays was used to manipulate the transmission wave fronts of acoustic waves, and the acoustic field characteristics ...
Shuai Tang, Yaqi Ren, Rui Wang, Tingdun Wen, Jianning Han   +4 more
doaj   +1 more source

Structural optimization and analysis of surface acoustic wave biosensor based on numerical method

International Journal of Distributed Sensor Networks, 2019
The biosensor based on surface acoustic wave is of great significance for the application of biological clinical detection, but the sensitivity and specificity of surface acoustic wave biosensor still need to be improved.
Zhaoming Zhou, Jinsong Tan, Jia Zhang, Mian Qin   +3 more
doaj   +1 more source

Pulse mode shear horizontal-surface acoustic wave (SH-SAW) system for liquid based sensing applications

, 2004
In this work, we describe a novel pulse mode shear horizontal-surface acoustic wave (SH-SAW) polymer coated biosensor that monitors rapid changes in both amplitude and phase.
Newton, Michael, Gizeli, Electra, Melzak, KA, Melzak, Kathryn, Martin, Fabrice, Newton, MI, McHale, G, Martin, F, Gizeli, E, McHale, Glen   +9 more
core   +1 more source

Finite element heterogeneous multiscale methods for the wave equation [PDF]

, 2013
Wave phenomena appear in a wide range of applications such as full-waveform seismic inversion, medical imaging, or composite materials. Often, they are modeled by the acoustic wave equation.
Stohrer, Christian
core   +1 more source

Localization of Rock Acoustic Emission Sources Based on a Spaced Sensors System Consisting of Two Combined Receivers and a Hydrophone

Sensors
The paper considers the results of experiments on localization of the sources of geoacoustic radiation generated in near-surface sedimentary rocks.
Yuri Marapulets, Albert Shcherbina, Alexandra Solodchuk, Mikhail Mishchenko   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source