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The Journal of the Acoustical Society of America, 2010
The Doppler effect describes the change in frequency observed for a moving source and/or receiver. A common example of the Doppler effect involves a moving vehicle sounding a siren or horn as it approaches, passes, and recedes from an observer. The observed frequency (compared to the emitted frequency) is higher during the approach, is identical at the
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The Doppler effect describes the change in frequency observed for a moving source and/or receiver. A common example of the Doppler effect involves a moving vehicle sounding a siren or horn as it approaches, passes, and recedes from an observer. The observed frequency (compared to the emitted frequency) is higher during the approach, is identical at the
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Acta Mechanica, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Watanabe, Kazumi, Biwa, S.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Watanabe, Kazumi, Biwa, S.
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[Doppler effect in cardiology. Continuous Doppler, pulsed Doppler, Doppler color].
Presse medicale (Paris, France : 1983), 1989Echocardiography has contributed to the exploration of the heart by providing much information, and it has even given rise to new semiological concepts. However, abnormalities of intracardial blood flow, notably shunts and regurgitations, could only be diagnosed indirectly from their effects on cardiac cavities.
Y, Houdas +3 more
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Science, 2013
Detection of an object's rotation by exploiting the orbital angular momentum of light may find applications in remote sensing and astronomy. [Also see Report by Lavery et al. ]
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Detection of an object's rotation by exploiting the orbital angular momentum of light may find applications in remote sensing and astronomy. [Also see Report by Lavery et al. ]
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1991
The Doppler effect, named for Christian Doppler (ca. 1842), has tremendous importance for science and technology. Thanks to it, air traffic controllers can distinguish among objects moving in the line of sight; on the ground, speeding cars can be identified before serious accidents occur; and in space, the velocities of the stars and the rotations and ...
W. Schlosser +2 more
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The Doppler effect, named for Christian Doppler (ca. 1842), has tremendous importance for science and technology. Thanks to it, air traffic controllers can distinguish among objects moving in the line of sight; on the ground, speeding cars can be identified before serious accidents occur; and in space, the velocities of the stars and the rotations and ...
W. Schlosser +2 more
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Equivalence of the Doppler effect, relativistic Doppler effect and scattering effect
Physics Letters A, 1970Abstract On the basis of an electromagnetic plane wave scattered by an electron, the relativistic Doppler effect is demonstrated equivalent to a two step Doppler effect. Further experimental verification for the conservation law according to the Compton-Debye theory is also urged.
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Journal of the Optical Society of America, 1981
An angular analog of the Doppler effect arising from the quantum of angular momentum carried by circularly polarized photons is presented and developed. Applications to rotational Raman scattering, fluorescence doublets, controlled frequency shifting of light, rotation-induced optical activity, and the measurement of rotational motion of small ...
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An angular analog of the Doppler effect arising from the quantum of angular momentum carried by circularly polarized photons is presented and developed. Applications to rotational Raman scattering, fluorescence doublets, controlled frequency shifting of light, rotation-induced optical activity, and the measurement of rotational motion of small ...
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Relativistic Doppler-shift effects
Physical Review D, 1985The lack of knowledge of relativistic distribution functions for interacting particles introduces uncertainty into the cosmological interpretation of Doppler shifts, particularly for systems such as quasars. Here we define an average Doppler shift, reducible to the nonrelativistic form in the appropriate limit.
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Fortschritte der Physik/Progress of Physics, 1992
Doppler effect, as currently formulated. uses numerical phase invariance and any linear coordinate transformations with identity transformations of nonzero spatial coordinates transverse to a rectilinear uniform relative motion; this is shown to subtly deny presumed motion, angular aberration effects, and Doppler effect.
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Doppler effect, as currently formulated. uses numerical phase invariance and any linear coordinate transformations with identity transformations of nonzero spatial coordinates transverse to a rectilinear uniform relative motion; this is shown to subtly deny presumed motion, angular aberration effects, and Doppler effect.
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1987
The velocity of electromagnetic radiation in a vacuum is a constant which depends only upon the magnetic permeability and electrostatic permittivity of free space. This velocity is independent of any movement of the source or observer, but the same is not true of the wavelength and frequency of radiation.
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The velocity of electromagnetic radiation in a vacuum is a constant which depends only upon the magnetic permeability and electrostatic permittivity of free space. This velocity is independent of any movement of the source or observer, but the same is not true of the wavelength and frequency of radiation.
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