Results 41 to 50 of about 83,309 (277)
Survey on forced oscillations in power system
Journal of Modern Power Systems and Clean Energy, 2017 The oscillations in a power system can be categorized into free oscillations and forced oscillations. Many algorithms have been developed to estimate the modes of free oscillations in a power system.
Mohammadreza GHORBANIPARVAR
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Flow over a cylinder subjected to combined translational and rotational oscillations [PDF]
, 2012 The experimental research reported here employs particle image velocimetry to extend the study of Nazarinia et al. (2009a), recording detailed vorticity fields in the near-wake of a circular cylinder undergoing combined translational and rotational ...
Lo Jacono, David +3 more
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Diagnostic accuracy of respiratory impedance parameters to detect airflow obstruction in adults
Indian Journal of Allergy Asthma and Immunology, 2021 OBJECTIVE: The present study was aimed to evaluate the diagnostic accuracy of impedance parameters to detect airflow obstruction and the severity of airflow obstruction in adults. METHODS: The spirometry parameters (forced expiratory volume in 1 s [FEV1],
Sajal De
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Smart vest for respiratory rate monitoring of COPD patients based on non-contact capacitive sensing [PDF]
, 2018 In this paper, a first approach to the design of a portable device for non-contact monitoring of respiratory rate by capacitive sensing is presented.
Barbarov-Rostán, Gerardo +7 more
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Evaluation of impulse oscillation system: comparison with forced oscillation technique and body plethysmography [PDF]
European Respiratory Journal, 2001 The impulse oscillation system (IOS) has been developed recently to measure respiratory system resistance (Rrs) and reactance (Xrs) at different frequencies up to ≥25 Hz. IOS has, however, not been validated against established techniques.This study compared IOS with the classical pseudorandom noise forced oscillation technique (FOT) and body ...
J, Hellinckx +3 more
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The volume-dependent Forced Oscillation Technique
IFAC-PapersOnLine, 2018 Abstract This paper describes a novel extension of the Forced Oscillation Technique (FOT), namely the volume-dependent Forced Oscillation Technique (v-FOT). This extension is based on the measurement of the respiratory impedance over the whole lung volume.
Chuong Ngo +6 more
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Influence of the ageing process on the resistive and reactive properties of the respiratory system
Clinics, 2009 INTRODUCTION: In an increasingly old society, the study of the respiratory system changes and new techniques dedicated to older patients are of interest in physiologic studies as well as in the diagnosis of respiratory diseases.
Caio Vinicius Villalón e Tramont +4 more
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Natural convection heat transfer from two horizontal cylinders [PDF]
, 2008 Natural convection heat transfer from a single horizontal cylinder and a pair of vertically aligned horizontal cylinders is investigated. Surface heat transfer distributions around the circumference of the cylinders are presented for Rayleigh numbers of ...
Murray, Darina B. +2 more
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Forced oscilation technique and hyperinflation in COPD
Revista Portuguesa de Pneumologia, 2008 AbstractForced oscillation technique (FOT) is a simple method used to measure the mechanical impedance of the respiratory system.It can be a valuable test in poorly cooperative patients (pts) and in severe COPD.Little information exists concerning its value on hyperinflation in COPD pts.The aim of this study was to analyze the correlation (corr ...
A. Borba +6 more
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BMC Anesthesiology, 2020 Background Alveolar recruitment maneuvers enable easily reopening nonaerated lung regions via a transient elevation in transpulmonary pressure. To evaluate the effect of these maneuvers on respiratory resistance, we used an oscillatory technique during ...
Junko Nakahira +2 more
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