Results 301 to 310 of about 10,495,398 (335)

Improved-accuracy phase angle measurement

International Journal of Electronics, 1976
A method for phase angle determination from measurement of three magnitudes, described in a recent paper (Middlebrook 1975), is extended to provide improved accuracy.
openaire   +1 more source

Quantum Phase Angles and su(∞)

Journal of Modern Optics, 1991
Abstract 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.
openaire   +1 more source

Power-system phase-angle measurements

Proceedings of the IEE Part A: Power Engineering, 1958
The paper describes an instrument developed to record the phase variations between two 50c/s signals with a scale of ±12½°. The instrument was used during generator stability tests to record phase variations between the reference busbar voltage and a voltage at a remote point in the system undisturbed by the tests.
openaire   +1 more source

Phase Angle Measurement from Peak Areas (PAMPAS)

Journal of Magnetic Resonance, 2000
A new method is described for accurate Phase Angle Measurement from Peak AreaS (PAMPAS) with the goal of facilitating automated phase correction of NMR spectra. PAMPAS measures phases of isolated NMR peaks by using Fourier analysis of a series of peak areas measured with systematically incremented phase shifts. The calculated phases of individual peaks
openaire   +2 more sources

Bioelectrical impedance analysis (BIA) -derived phase angle in sarcopenia: A systematic review

Clinical Nutrition, 2021
Olivia Di Vincenzo, Maurizio Marra, Fabrizio Pasanisi   +2 more
exaly  

Phase angle from bioelectrical impedance for the assessment of sarcopenia in cirrhosis with or without ascites.

Clinical Gastroenterology and Hepatology, 2020
A. Ruiz-Margáin, Jesse J. Xie, B. Román-Calleja, Margaret Pauly, M. White, M. Chapa-Ibargüengoitia, A. Campos-Murguía, J. A. González-Regueiro, R. Macías‐Rodríguez, A. Duarte-Rojo   +9 more
semanticscholar   +1 more source

phase angle, n.

2023
openaire   +1 more source

Phase Angle

2011
openaire   +2 more sources

Fluid balance and phase angle as assessed by bioelectrical impedance analysis in critically ill patients: a multicenter prospective cohort study

European Journal of Clinical Nutrition, 2020
N. Denneman, L. Hessels, B. Broens, Jolijn Gjaltema, S. Stapel, Julius A H Stohlmann, M. Nijsten, H. O. Oudemans-van Straaten   +7 more
semanticscholar   +1 more source

Phase angle from bioelectrical impedance analysis is a useful indicator of muscle quality

Journal of Cachexia, Sarcopenia and Muscle, 2022
Yasunori Akamatsu, Toru Kusakabe, Yuji Yamamoto   +2 more
exaly