Results 271 to 280 of about 576,478 (319)
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Acoustical barrier with acoustical seal
The Journal of the Acoustical Society of America, 1994An acoustical barrier, an aperture and a pipe or cable passing therethrough wherein the aperture has a number of radially extending slits which define a plurality of radial sectors which also extend from the aperture. One or more grooves are arranged in the sectors concentrically about the aperture to increase the radial flexibility of the sectors so ...
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The Journal of the Acoustical Society of America, 1935
Previous to the development of amplifiers most of the instruments used in acoustical research depended for their operation upon purely mechanical principles. This paper includes a brief survey of such of these instruments as are still of interest in connection with the investigation of technical or research problems in acoustics, but it deals primarily
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Previous to the development of amplifiers most of the instruments used in acoustical research depended for their operation upon purely mechanical principles. This paper includes a brief survey of such of these instruments as are still of interest in connection with the investigation of technical or research problems in acoustics, but it deals primarily
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2020
In the setting of a voice clinic, the voice may be assessed in a number of different ways. As a bare minimum, assessment should include stroboscopic examination, patient self-reported questionnaires, and clinician-reported perceptual evaluation. In addition, recordings of the voice may be analyzed using computer software: several different measures ...
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In the setting of a voice clinic, the voice may be assessed in a number of different ways. As a bare minimum, assessment should include stroboscopic examination, patient self-reported questionnaires, and clinician-reported perceptual evaluation. In addition, recordings of the voice may be analyzed using computer software: several different measures ...
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Nature, 2016
Holographic techniques are fundamental to applications such as volumetric displays, high-density data storage and optical tweezers that require spatial control of intricate optical or acoustic fields within a three-dimensional volume. The basis of holography is spatial storage of the phase and/or amplitude profile of the desired wavefront in a manner ...
Kai Melde +3 more
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Holographic techniques are fundamental to applications such as volumetric displays, high-density data storage and optical tweezers that require spatial control of intricate optical or acoustic fields within a three-dimensional volume. The basis of holography is spatial storage of the phase and/or amplitude profile of the desired wavefront in a manner ...
Kai Melde +3 more
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Soviet Physics Uspekhi, 1987
The thirtieth anniversary of the discovery of the laser is celebrated in 1990. Modern lasers emit in a wide range of wavelengths and major progress has been made in the development of tunable dye lasers, as well as of gas and solid-state lasers.
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The thirtieth anniversary of the discovery of the laser is celebrated in 1990. Modern lasers emit in a wide range of wavelengths and major progress has been made in the development of tunable dye lasers, as well as of gas and solid-state lasers.
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2017
July 1935, a British newspaper reported, “China’s own most famous actress, Miss Butterfly Wu, of Shanghai, shook hands yesterday with Hollywood’s most famous Chinese star, Miss Anna May Wong,” at a reception in honor of both Wu and Mei Lan-fang, “China’s leading stage actor.” All three performers became involved in filmmaking as it was emerging into a
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July 1935, a British newspaper reported, “China’s own most famous actress, Miss Butterfly Wu, of Shanghai, shook hands yesterday with Hollywood’s most famous Chinese star, Miss Anna May Wong,” at a reception in honor of both Wu and Mei Lan-fang, “China’s leading stage actor.” All three performers became involved in filmmaking as it was emerging into a
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Trends in Biochemical Sciences, 1977
The acoustic microscope is a new entry in the field of microscopic imaging. It comes after a delay of many years, but now appears to be well established. At last year's conference of the Royal Microscopical Society in London, for example, the booth traditionally reserved for new instruments was used to introduce commercial versions of acoustic ...
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The acoustic microscope is a new entry in the field of microscopic imaging. It comes after a delay of many years, but now appears to be well established. At last year's conference of the Royal Microscopical Society in London, for example, the booth traditionally reserved for new instruments was used to introduce commercial versions of acoustic ...
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The Journal of the Acoustical Society of America, 2010
It is now well understood how coordinate transformations of the Maxwell equations can be interpreted in terms of an electromagnetic material in the original coordinates with transformed values of permittivity and permeability. Through this transformation optics approach, the bending and stretching of electromagnetic fields specified by coordinate ...
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It is now well understood how coordinate transformations of the Maxwell equations can be interpreted in terms of an electromagnetic material in the original coordinates with transformed values of permittivity and permeability. Through this transformation optics approach, the bending and stretching of electromagnetic fields specified by coordinate ...
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The Journal of the Acoustical Society of America, 1991
A stable force potential well was generated by two collimated focused ultrasonic (3.5 MHz) beams propagating along opposite directions. Latex particles (270-μm diameter) and clusters of frog eggs were trapped in the potential well. The trapped object can be moved axially or laterally by moving one of the PZT focusing transducers that generate the ...
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A stable force potential well was generated by two collimated focused ultrasonic (3.5 MHz) beams propagating along opposite directions. Latex particles (270-μm diameter) and clusters of frog eggs were trapped in the potential well. The trapped object can be moved axially or laterally by moving one of the PZT focusing transducers that generate the ...
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EDUCATION EDUCATION EDUCATION - ACOUSTICS ACOUSTICS ACOUSTICS
SPRING CONFERENCE ACOUSTICS 2013, 2023openaire +1 more source