Results 271 to 280 of about 45,052 (312)
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Nature, 1927
THE observations described in the striking experiment of Hubbard and Loomis (NATURE, Aug. 6, 1927, p. 189) are another example of the important conclusions which may be derived from a study of the interesting phenomenon of ultrasonic stationary waves. Velocities of sound in various, liquids were determined here by the ultrasonic stationary wave method ...
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THE observations described in the striking experiment of Hubbard and Loomis (NATURE, Aug. 6, 1927, p. 189) are another example of the important conclusions which may be derived from a study of the interesting phenomenon of ultrasonic stationary waves. Velocities of sound in various, liquids were determined here by the ultrasonic stationary wave method ...
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Treatment of Meniere's Disease with Ultrasonic Waves
Archives of Otolaryngology - Head and Neck Surgery, 1961Selective destruction of the vestibular portion of the labyrinth by irradiation with ultrasonic waves after surgical exposure of the semicircular canals seems to be the most promising method of surgical treatment of Meniere's disease (Arslan, 7-9 Lumsden, 13,14 Dubs, 10 Altmann and Waltner, 1-3 Ironside and Lindsay, 11 Ariagno, 5 Angell James and ...
F, ALTMANN, J G, WALTNER
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Optical transducer for reception of ultrasonic waves
The Journal of the Acoustical Society of America, 1993A new optical transducer for the detection of acoustic pressure in the diagnostic ultrasound frequency range is described. This transducer is based on the modulation of an evanescent light field by the incident acoustic energy. Theoretical design considerations are presented for the purpose of developing the most sensitive transducer.
P J, Phillips +3 more
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The Journal of the Acoustical Society of America, 1980
An ultrasonic wave transducer which can generate a convergent ultrasonic sound beam. The transducer comprises liquid contained in a housing, a piezoelectric material in said liquid, and interdigital electrode arranged on the surface of said piezoelectric material, an alternating voltage being applied to said interdigital electrode.
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An ultrasonic wave transducer which can generate a convergent ultrasonic sound beam. The transducer comprises liquid contained in a housing, a piezoelectric material in said liquid, and interdigital electrode arranged on the surface of said piezoelectric material, an alternating voltage being applied to said interdigital electrode.
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Interaction of Spin Waves and Ultrasonic Waves in Ferromagnetic Crystals
Physical Review, 1958A field-theoretical treatment is given of the magnetoelastic coupling of magnons and phonons in a ferromagnetic crystal. The effects of the coupling are large when the wavelengths and frequencies of the two fields are equal. If the two transverse phonon states of a given wave vector are degenerate, then the rotatory dispersion of the phonons will be ...
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Amplification of Ultrasonic Waves in Piezoelectric Semiconductors
PTGMTT National Symposium Digest, 1962An ultrasonic wave traveling in certain directions in a piezoelectric semiconductor such as cadmium sulfide can be amplified or attenuated by application of a dc electric field. The direct current flowing through the medium in the presence of an ultrasonic wave creates a traveling ac field which interacts with the ultrasonic wave.
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Ultrasonic Waves to Support Human Echolocation
2018In this paper a new device and methods to get an acoustic image of the environment is proposed. It can be used as an electronic aid for people who are visual impaired or blind. The paper presents current methods on human echolocation and current research in electronic aids.
Florian von Zabiensky +2 more
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Effect of ultrasonic standing waves on flotation bubbles
Ultrasonics Sonochemistry, 2021Yanan Tu, Ziqi Lv
exaly