Results 281 to 290 of about 14,285,590 (338)
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Exploring the potential role of phase angle as a marker of oxidative stress: A narrative review.
Nutrition (Burbank, Los Angeles County, Calif.), 2021Chronic conditions including non-communicable diseases have become increasingly prevalent in the past decade. Proinflammatory cytokines are associated with the development of several pathologies, their prognoses, and their associated mortality.
B. R. da Silva +3 more
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Phase angle and mortality: a systematic review
European Journal of Clinical Nutrition, 2019The phase angle, expressed through bioelectrical impedance, has been studied as a prognostic marker in several health conditions. As this issue is still conflicting, the question whether this parameter correlates with mortality in the most diverse clinical situations remains.
Luíza M. Garlini +5 more
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IFAC Proceedings Volumes, 1984
Abstract Any interactive computer-aided design technique for multivariable feedback systems is critically dependent on the deployment of an appropriate set of indicators with Which to assess stability, performance and robustness. Appropriate generalizations of the classical feedback concepts of gain and phase are developed for this purpose.
Hung, YS, Macfarlane, AGJ
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Abstract Any interactive computer-aided design technique for multivariable feedback systems is critically dependent on the deployment of an appropriate set of indicators with Which to assess stability, performance and robustness. Appropriate generalizations of the classical feedback concepts of gain and phase are developed for this purpose.
Hung, YS, Macfarlane, AGJ
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Phase Angle as an Indicator of Baseline Nutritional Status and Sarcopenia in Acute Stroke.
Journal of Stroke & Cerebrovascular Diseases, 2021OBJECTIVES This study aimed to investigate whether phase angle is an indicator of malnutrition and sarcopenia in acute-phase stroke patients. MATERIALS AND METHODS We conducted a retrospective observational study of stroke patients in a single acute ...
Yoko Sato, Y. Yoshimura, T. Abe
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Geometric quantum phase and angles
Physical Review D, 1988The geometric phase in quantum mechanics is formulated for charged particles in a gauge-invariant, geometric manner. It is then extended to an evolution resulting from a sequence of measurements as in the work of Pancharatnam and Aharonov and Vardi. Its close connection to the Feynman formulation of quantum mechanics is pointed out.
, Anandan, , Aharonov
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The Berry phase and the Hannay angle
Physical Review D, 1988The analysis provided by Berry of the extra phase acquired by a system undergoing adiabatic excursion in a closed path in parameter space is extended in this paper to the case of nonstationary states. It is shown that, for certain integrable dynamical systems, wave packets exist which under continuation in parameter space behave in a manner that can be
, Ghosh, , Dutta-Roy
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Progress in Organic Coatings, 2020
The impedance characteristic and degradation process of two epoxy coatings in 3.5 % NaCl solution and seawater environment were studied by using electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and infrared spectroscopy ...
Tingrui Fu +5 more
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The impedance characteristic and degradation process of two epoxy coatings in 3.5 % NaCl solution and seawater environment were studied by using electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and infrared spectroscopy ...
Tingrui Fu +5 more
semanticscholar +1 more source
The Diagnostic Value of Phase-Angle Tympanograms
International Journal of Audiology, 1981The diagnostic value of susceptance, conductance, resistance, reactance, admittance and phase-angle tympanograms is compared. Phase-angle tympanograms seem to be best suited for the discrimination between normal W patterns and broad irregular curves obtained from ossicular disruptions, luxations and necroses.
W L, Creten +3 more
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Phase angle predicts physical function in older adults.
Archives of gerontology and geriatrics (Print), 2020BACKGROUND Phase angle (PhA) is recognized as an indicator of cellular health and may be a useful marker of physical functions in geriatric populations.
C. Matias +6 more
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The Phase Angle of Current Transformers
Transactions of the American Institute of Electrical Engineers, 1915A method of testing the phase angle of current transformers by comparing readings obtained on a wattmeter whose current circuit is first connected to receive a part of the primary current (the remainder of the primary current passing in shunt through resistance) and then connected to the secondary circuit; the potential circuit is supplied from the ...
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