Results 171 to 180 of about 450,240 (212)
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Progress in phase angle thermography
Review of Scientific Instruments, 2003Phase angle thermography is basically spatially multiplexed photothermal radiometry. It provides images for remote detection and imaging of damage. For energy deposition one can use external heat sources (e.g., light or convective heating) or internal heat generation (e.g., electric current, microwaves, eddy current, or elastic wave).
A. Dillenz +3 more
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Phase Angles of Sound as a Biometric Feature
2012The paper is a proposal of concept of highlighting the sound sources based on the phase shifts of successive harmonics in a single function course extracted from a articulation of single sound which frequency is stable in short-term. The function describing the single period of sound is expanded for the purpose of determining the harmonic series from −∞
Andrzej W. Mitas +3 more
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MLD's and the Phase Angle, Alpha
The Journal of the Acoustical Society of America, 1968This Letter describes two experiments designed to discover the effect of the phase angle, α (the angle between a narrow-band masker and a tonal signal), on binaural detection, and offers an explanation of why they failed to reveal any effect.
Lloyd A. Jeffress, Dennis McFadden
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Ratiometer phase angle indicator
Journal of Scientific Instruments, 1960The principle of the moving coil ratiometer is described together with the circuit used with it for phase angle measurement. The mode of operation, performance, adjustment, and calibration are given.
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Quantum Phase Angles and su(∞)
Journal of Modern Optics, 1991Abstract The polar decomposition of the su(2) algebra leads to unitary phase operators which do not close to an algebra with the number operator. It is shown that phase and number operators can be embedded into a larger su(2j + 1) algebra with trigonometric structure constants.
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Remote measurement of phase angle
Proceedings of the Institution of Electrical Engineers, 1972A system is described for the measurement of the phase angle between two voltages separated from each other, and from the point where the results are to be displayed, by a distance of several miles. A correction for the transmission delay of the measurement signals is automatically made, and an accurate knowledge of the transmission-path ...
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The Remote Measurement of Phase Angle
1972In the distribution of electricity, it is necessary to link the outputs of substations, which may be many miles apart. In order to prevent an excessive surge of current in the connecting link, the connection between a pair of substations should not be made until the phase angle between their voltages is small, There has been, for many years, a need for
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Bioelectrical impedance analysis (BIA) -derived phase angle in sarcopenia: A systematic review
Clinical Nutrition, 2021Maurizio Marra +2 more
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Phase angle and cellular health: inflammation and oxidative damage
Reviews in Endocrine and Metabolic Disorders, 2022Camila E Orsso +2 more
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Role of phase angle in older adults with focus on the geriatric syndromes sarcopenia and frailty
Reviews in Endocrine and Metabolic Disorders, 2022Kristina Norman +2 more
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