Results 291 to 300 of about 14,285,590 (338)

Phase angle as a marker for sarcopenia in cirrhosis

Clinical Nutrition ESPEN, 2019
In patients with cirrhosis nutritional disturbances can progress to sarcopenia, worsening the disease prognosis. Phase angle (PA) may be a useful marker for sarcopenia in this clinical population reflecting the cellular integrity level. This cross-sectional and prospective study evaluated the association between low PA values and clinical/nutritional ...
Dannieli do, Espirito Santo Silva, Dan Linetzky, Waitzberg, Rosângela, Passos de Jesus, Lucivalda Pereira Magalhães de, Oliveira, Raquel Susana, Torrinhas, Giliane, Belarmino   +5 more
openaire   +2 more sources

Phase Transitions in Angle Variables

Physical Review Letters, 2003
Phase transitions in angle variables are studied. An example of angular phase transition, an axially to triaxially deformed "shape" transition in nuclei, is discussed. Spectroscopic signatures for the occurrence of these transitions are suggested. Preliminary experimental evidence is presented.
openaire   +2 more sources

Association Between Phase Angle And Isolated And Grouped Physical Fitness Indicators In Adolescents.

Physiology and Behavior, 2020
OBJECTIVE Examine association between phase angle and isolated and grouped physical fitness indicators in adolescents. Methods The sample consisted of 353 adolescents, aged 10-16 years.
P. C. Martins, L. R. D. de Lima, Juliane Berria, E. Petróski, A. M. da Silva, D. A. Silva   +5 more
semanticscholar   +1 more source

Phase Angle is Determined by Body Composition and Cardiorespiratory Fitness in Adolescents

International Journal of Sports Medicine, 2020
The phase angle is used to evaluate nutritional status and is an indicator of cellular health. Cardiorespiratory fitness and body composition are strong indicators of health during adolescence.
R. D. Langer, Roseane de Fátima Guimarães, E. M. Gonçalves, G. Guerra-Júnior, A. D. de Moraes   +4 more
semanticscholar   +1 more source

A phase angle standard

Measurement Science and Technology, 2004
A phase angle standard for power frequencies (40–400 Hz) with a very low measuring uncertainty of 3 µrad is developed. The standard is based on a two-channel high-stability arbitrary waveform AC source for voltages up to 120 V and currents up to 6 A with high phase angle resolution which is realized as a development device with full computer control. A
openaire   +1 more source

Phase-Angle Control of System Interconnections

Transactions of the American Institute of Electrical Engineers, 1939
This paper describes an application of a new method of automatic control between two interconnected power systems, whereby greater utilization of the interconnection capacity is secured. As the stable limit of the interchange between systems is affected by variations in the magnitude and location of intermediate loads on the respective systems, direct ...
R. E. Pierce, B. W. Hamilton
openaire   +1 more source

Timestamp Shift Detection for Synchrophasor Data Based on Similarity Analysis Between Relative Phase Angle and Frequency

IEEE Transactions on Power Delivery, 2020
Timestamp Shift (TS) in synchrophasor data can lead to false operation of synchrophasor-based wide-area monitoring, protection and control applications. The letter presents a method to detect TS of synchrophasor data based on similarity analysis between ...
Wen-Peng Yu, Wenxuan Yao, Xianda Deng, Yin-Feng Zhao, Yi-Lu Liu   +4 more
semanticscholar   +1 more source

Phase angle as a predictor of functional outcomes in patients undergoing in-hospital rehabilitation after hip fracture surgery.

Archives of gerontology and geriatrics (Print), 2020
OBJECTIVES To evaluate the association between the phase angle and functional outcomes in patients after in-hospital postoperative rehabilitation for fragility hip fracture. METHODS A prospective observational study was conducted in 68 patients over 65
Seung-Kyu Lim, Jae-Young Lim
semanticscholar   +1 more source

Fast Phase Angle Jump Estimation to Improve the Convergence Time of the GDSC-PLL

IEEE transactions on industrial electronics (1982. Print), 2020
The fast detection of magnitude, frequency, and phase angle of the fundamental-frequency component is very useful in many three-phase power system applications.
Daniel Soares dos Santos Andrade, Y. N. Batista, F. Neves, H. D. de Souza   +3 more
semanticscholar   +1 more source

Improved models for the prediction of asphalt binder dynamic shear modulus and phase angle

, 2020
In this paper, new set of models for predicting the dynamic shear modulus and phase angle of asphalt binders from conventional viscosity are developed and presented.
I. Onifade, B. Birgisson
semanticscholar   +1 more source