Results 271 to 280 of about 911,047 (294)
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Intensification of bubble columns by vibration excitement
Catalysis Today, 2003In this paper we show that application of low-frequency vibrations, in the 40-120 Hz range, to the liquid phase of an air-water bubble column causes significantly smaller bubbles to be generated at the nozzle. In experiments with a single capillary nozzle, the bubble size is reduced by about 40-50%, depending on the vibration frequency and amplitude ...
Ellenberger, J. +2 more
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Vibrations of the Reed and the Air Column in the Clarinet
The Journal of the Acoustical Society of America, 1961The vibrations of an artificially blown clarinet were studied by a photoelectric method in which light from a source placed at the bell of the instrument passed through the aperture between the reed and the mouthpiece and into a photomultiplier tube whose output was observed on an oscilloscope.
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Review of Bubble Column Reactors with Vibration
Industrial & Engineering Chemistry Research, 2016Vibrating a bubble column reactor can increase the gas holdup (void fraction), as well the mass-transfer rate. Since the seminal work in the 1960s, there has been minimal effort focused on this topic until the early 2000s. Currently there are several groups studying this problem making advancements in our fundamental understanding of the process with ...
Brian R. Elbing +2 more
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Hydrophone Calibration in a Vibrating Column of Liquid
The Journal of the Acoustical Society of America, 1962Absolute pressure calibrations of hydrophones have been performed in the laboratory by immersing the hydrophone in a column of liquid set into vibration. Sound pressures of over 1000 dyne/cm2 can easily be obtained. Various limitations on the procedure, such as those due to fluid motion around the hydrophone, and wave effects in the liquid column are ...
F. Schloss, M. Strasberg
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Investigation on nonlinear coupled vibration of columns.
2011The oscillation of a column subjected to periodic axial end excitation was analytically and experimentally investigated. The initial crookedness of the column and the longitudinal inertia of a column element give rise to coupled, longitudinal-flexural oscillations. A snap-thru phenomenon and complex subharmonics of natural flexural modes of oscillation
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Vibrations of a Cantilevered Pump Column
1980Wei-Yih Chow, Alexander B. Rudavsky
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Bending vibrations in the human vertebral column
Journal of Biomechanics, 1977openaire +2 more sources
Analysis of the vibrations of the vertebral column in the man-vibrating object system
Journal of Biomechanics, 1989Mirosław Nader, Otmar Krettek
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