Results 131 to 140 of about 140,791 (178)
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Combined photoacoustic and magneto-acoustic imaging
2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009Ultrasound is a widely used modality with excellent spatial resolution, low cost, portability, reliability and safety. In clinical practice and in the biomedical field, molecular ultrasound-based imaging techniques are desired to visualize tissue pathologies, such as cancer.
Min, Qu +6 more
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Magneto-acoustic attenuation in AuSb2
Solid State Communications, 1974Abstract Quantum oscillations in the ultrasonic attenuation in AuSb2 were studied as a function of temperature, magnetic field and crystal orientation. The effective masses of the carriers associated with the F5 and F6 oscillations were measured in a (110) plane.
F.P. Missell +4 more
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Magneto-Acoustic Interaction in Mercury
The Journal of the Acoustical Society of America, 1969The magnetically induced acoustic absorption coefficient in liquid mercury has been measured around its inverse relaxation frequency using an on-line computer and magnetic fields of up to 10 kg. The hybrid computer-operated differential measuring system took between 2560 and 25 600 experiments per run.
Thomas D. Sachs, Gregory P. Hughes
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Magneto-Acoustic Waves in a Plasma
The Physics of Fluids, 1963The propagation of plane magneto-acoustic waves in a highly conducting plasma is examined, and the results are applied to magneto-acoustic pulsations of a cylindrical configuration. (C.E.S.)
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Physical Review, 1941
In recent years considerable interest has developed'1 among chemists and physicists in the determination of the velocity of sound in liquids by means of high fre¬quency sound waves. These measurements are valuable for our knowledge of molecular properties.
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In recent years considerable interest has developed'1 among chemists and physicists in the determination of the velocity of sound in liquids by means of high fre¬quency sound waves. These measurements are valuable for our knowledge of molecular properties.
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The magneto-acoustic emission (invited)
Journal of Applied Physics, 1993When cycling a hysteresis loop, bursts of high frequency ultrasonic waves are emitted. This general phenomenon, which must not be confused with the classical magnetostrictive effect at twice the cycling frequency, is called the magnetoacoustic emission (MAE). By using literature and authors’ results, qualitative and quantitative, the authors review the
M. Guyot, V. Cagan
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Magneto-acoustic imaging by continuous-wave excitation
Medical & Biological Engineering & Computing, 2016The electrical characteristics of tissue yield valuable information for early diagnosis of pathological changes. Magneto-acoustic imaging is a functional approach for imaging of electrical conductivity. This study proposes a continuous-wave magneto-acoustic imaging method.
Shunqi Zhang +3 more
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Physics Letters, 1963
A solution is obtained for the induced magnetic field caused by the propagation of sound waves through an electrically conducting medium in a direction parallel to the original magnetic field. The equation of continuity is introduced into the coupled equations for the hydrodynamic flow and the electromagnetic field. (R.E.U.)
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A solution is obtained for the induced magnetic field caused by the propagation of sound waves through an electrically conducting medium in a direction parallel to the original magnetic field. The equation of continuity is introduced into the coupled equations for the hydrodynamic flow and the electromagnetic field. (R.E.U.)
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Maximum likelihood estimator for magneto-acoustic localisation
1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002This paper is devoted to the localization of magneto-acoustic sources moving in a straight line at a constant speed. Our technique is based on the association of narrow band acoustic signals and magnetostatic measurements. First of all, we describe features that make possible the association of magnetic and acoustic data, secondly, we show that the ...
Gilles Dassot +2 more
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Experimental observations of magneto-acoustic fields
The Journal of the Acoustical Society of America, 1983Experimental observations of electric fields induced in salt water by acoustic waves in a resonant cavity interacting with a strong constant magnetic field are described. The fields are found to behave linearly with the constant magnetic field strength as well as with the acoustic field strength as predicted theoretically.
Paul H. Moose, Robert F. Klaus
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