Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Jingfeng Guan"'
Publikováno v:
The Journal of the Acoustical Society of America. 126:2954-2962
Experiments were performed to measure the dynamical response of individual SonoVue® microbubbles subjected to pulsed ultrasound. Three commonly used bubble dynamic models (i.e., Hoff’s, Sarkar’s, and linearized Marmottant’s models) were compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::693c4bd57ee25775f587ce8634856d72
https://doi.org/10.1121/1.3242346
https://doi.org/10.1121/1.3242346
Autor:
Michael R. Bailey, Steven G. Kargl, Thomas J. Matula, Oleg A. Sapozhnikov, Lawrence A. Crum, Paul R. Hilmo, Jingfeng Guan
Publikováno v:
Acoustics Research Letters Online. 6:214-220
There have been several recent reports that active sonar systems can lead to serious bioeffects in marine mammals, particularly beaked whales, resulting in strandings, and in some cases, to their deaths. We have devised a series of experiments to det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62624aab49d18ccf239d69cf5335bbb8
https://doi.org/10.1121/1.1930987
https://doi.org/10.1121/1.1930987
Autor:
Jingfeng Guan, Thomas J. Matula
Publikováno v:
The Journal of Physical Chemistry B. 107:8917-8921
The rate at which single-bubble sonoluminescence is quenched in the presence of alcohol is examined. Single-bubble sonoluminescence bubbles are generated in a partially degassed argon-water/alcohol mixture. Quenching rates are measured by recording t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8c9a0a77af01d680801253d8f3b8cb8
https://doi.org/10.1021/jp026494z
https://doi.org/10.1021/jp026494z
Autor:
Jingfeng Guan, Thomas J. Matula
Publikováno v:
IEEE Ultrasonics Symposium, 2004.
Measurements of the dynamical response of ultrasound contrast agents to diagnostic and therapeutic ultrasound pulses have been accomplished with light scattering. Light-scattering can be used to resolve the instantaneous motion of single microbubbles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f53fd21eab5e86f6e4f0b87b1b7b46e
https://doi.org/10.1109/ultsym.2004.1417706
https://doi.org/10.1109/ultsym.2004.1417706
Autor:
Thomas J. Matula, Jingfeng Guan
Publikováno v:
SPIE Proceedings.
It is important to understand the interaction of pulsed ultrasound with ultrasound contrast agents so that the agents can be utilized to their fullest. Towards this goal, we have optimized light-scattering to provide quantitative information about mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ed43dfa457854ae85887443c23d3627
https://doi.org/10.1117/12.595847
https://doi.org/10.1117/12.595847
Autor:
Thomas J. Matula, Jingfeng Guan
Publikováno v:
The Journal of the Acoustical Society of America. 116(5)
Light scattering was used to measure the radial pulsations of individual ultrasound contrast microbubbles subjected to pulsed ultrasound. Highly diluted Optison or Sonazoid microbubbles were injected into either a water bath or an aqueous solution co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80a4b92ed5cf4a84855fb8eb87e9979f
https://pubmed.ncbi.nlm.nih.gov/15603131
https://pubmed.ncbi.nlm.nih.gov/15603131
Autor:
Franz Grieser, Thomas J. Matula, Jingfeng Guan, John W. Nuske, Rohan Tronson, Muthupandian Ashokkumar
Publikováno v:
Physical Review E. 65
The radial dynamics of an acoustically driven single bubble, levitated in water, along with the sonoluminescence (SL) signal, were recorded in the absence and in the presence of micromolar quantities of different surfactants and polymers. It was obse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a53b958659a17e840003805697a7ae
https://doi.org/10.1103/physreve.65.046310
https://doi.org/10.1103/physreve.65.046310
Publikováno v:
Physical Review E. 64
Comparisons of light emissions from multibubble and single-bubble sonoluminescence in the near-infrared band extending from 800 to 1050 nm have been investigated. In argon-water mixtures, single-bubble and multibubble spectra are similar in appearanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3efed3d68b36ad58a689eacf6f43f8d
https://doi.org/10.1103/physreve.64.026310
https://doi.org/10.1103/physreve.64.026310
Autor:
Jingfeng Guan, Thomas J. Matula
Publikováno v:
The Journal of the Acoustical Society of America. 112:2269-2270
A small amount of alcohol added to water dramatically decreases the light intensity from single‐bubble sonoluminescence [Weninger et al., J. Phys. Chem. 99, 14195–14197 (1995)]. From an excess accumulation at the bubble surface [Ashokkumar et al.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ced3aee89a2438be772eaab15d398bac
https://doi.org/10.1121/1.4779078
https://doi.org/10.1121/1.4779078
Autor:
Thomas J. Matula, Jingfeng Guan
Publikováno v:
The Journal of the Acoustical Society of America. 129:1675
A system and method for determining bubble shell properties using optical scattering. One or more ultrasound contrast agent (UCA) bubbles is placed in an imaging volume and illuminated with a laser. The UCA is exposed to pressure variations (e.g., us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee5d06ede454b9e2703fb73579972901
https://doi.org/10.1121/1.3573366
https://doi.org/10.1121/1.3573366