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Relevant bibliographies by topics / Forced oscillation (FO)

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Academic literature on the topic 'Forced oscillation (FO)'

Author: Grafiati

Published: 4 July 2023

Last updated: 31 July 2025

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Journal articles on the topic "Forced oscillation (FO)"

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Lorino, AM, F. Lofaso, F. Abi-Nader, et al. "Nasal airflow resistance measurement: forced oscillation technique versus posterior rhinomanometry." European Respiratory Journal 11, no. 3 (1998): 720–25. http://dx.doi.org/10.1183/09031936.98.11030720.

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This study was designed to determine whether nasal airflow resistance (Rn) which is nonlinear during tidal breathing, can be assessed by the forced oscillation (FO) technique. Rn values obtained by the FO technique and extrapolated to 0 Hz (Rn,FO) were compared to those assessed by posterior rhinomanometry at maximal tidal inspiratory flow (Rn,m), at a 0.5 L x s(-1) flow (Rn,F), and at a 1 hPa transnasal pressure (Rn,P). All Rn estimates were derived from the same inspiratory and expiratory nasal flow and transnasal pressure signals obtained during tidal nasal breathing whilst a forced flow wa

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Saadeh, C., M. D. Goldman, C. K. Saadeh, and J. R. Lemert. "Objective evidence of omalizumab treatment assessed by Forced Oscillation (FO)." Journal of Allergy and Clinical Immunology 119, no. 1 (2007): S5. http://dx.doi.org/10.1016/j.jaci.2006.11.037.

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Harf, A., M. Decramer, W. Zin, J. Milic-Emili, and H. K. Chang. "Respiratory resistance in dogs by the single-breath and the forced oscillation methods." Journal of Applied Physiology 59, no. 1 (1985): 262–65. http://dx.doi.org/10.1152/jappl.1985.59.1.262.

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Total respiratory resistance (Rrs) was measured in six anesthetized dogs with two different methods: the single-breath (SB) method, which provides the time constant of the system during a relaxed expiration and the forced oscillation (FO) method, which uses a pseudorandom noise signal applied at the airway opening. The comparison was made in three conditions: before muscle paralysis (A), after muscle paralysis (B), and after tracheal banding (C). In conditions A and B the two computed resistances correlated very well with each other (r = 0.98). No systematic difference between Rrs values obtai

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Tomioka, Shinichiro, Jason H. T. Bates, and Charles G. Irvin. "Airway and tissue mechanics in a murine model of asthma: alveolar capsule vs. forced oscillations." Journal of Applied Physiology 93, no. 1 (2002): 263–70. http://dx.doi.org/10.1152/japplphysiol.01129.2001.

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To better address the functional consequences of inflammation on bronchial responsiveness, we studied two groups of BALB/c mice: a nonimmunized control group ( n = 8) and a group immunized and challenged with inhaled ovalbumin ( n = 8). An alveolar capsule (AC) measured airway resistance (RawAC) and lung elastance (El). A forced oscillation (FO) technique independently estimated airway resistance (RawFO) and a parameter H ti related to tissue elastance. Ovalbumin-immunized and -challenged mice had increased numbers of eosinophils in bronchoalveolar lavage and increased responsiveness to methac

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Kumar, Lalit, Shehab Ahmed, Luigi Vanfretti, and Nand Kishor. "Real-Time Testing of Synchrophasor-Based Wide-Area Monitoring System Applications Acknowledging the Potential Use of a Prototyping Software Toolchain." International Transactions on Electrical Energy Systems 2022 (July 30, 2022): 1–13. http://dx.doi.org/10.1155/2022/6215040.

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This article presents a study on real-time testing of synchrophasor-based “wide-area monitoring system’s applications (WAMS application).” Considering the growing demand of real-time testing of “wide-area monitoring, protection, and control (WAMPAC)” applications, a systematic real-time testing methodology is formulated and delineated in diagrams. The diagrams propose several stages through which an application needs to be assessed (sequentially) for its acceptance prior to implementation into a production system. However, only one stage is demonstrated in this article which comprises the use

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Skloot, Gwen, Clyde Schechter, Alpa Desai, and Alkis Togias. "Impaired response to deep inspiration in obesity." Journal of Applied Physiology 111, no. 3 (2011): 726–34. http://dx.doi.org/10.1152/japplphysiol.01155.2010.

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Deep inspirations modulate airway caliber and airway closure and their effects are impaired in asthma. The association between asthma and obesity raises the question whether the deep inspiration (DI) effect is also impaired in the latter condition. We assessed the DI effects in obese and nonobese nonasthmatics. Thirty-six subjects (17 obese, 19 nonobese) underwent routine methacholine (Mch) challenge and 30 of them also had a modified bronchoprovocation in the absence of DIs. Lung function was monitored with spirometry and forced oscillation (FO) [resistance (R) at 5 Hz (R5), at 20 Hz (R20), R

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Karimzadegan, Kavoos, Masoud Mirzaei, and Josep M. Bergada. "Analysis of a Novel Fluidic Oscillator under Several Dimensional Modifications." Applied Sciences 14, no. 5 (2024): 1690. http://dx.doi.org/10.3390/app14051690.

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To activate the boundary layer in Active Flow Control (AFC) applications, the use of pulsating flow has notable energy advantages over constant blowing/suction jet injections. For a given AFC application, five parameters, jet location and width, inclination angle, frequency of injection, and the momentum coefficient, need to be tuned. Presently, two main devices are capable of injecting pulsating flow with a momentum coefficient sufficient to delay the boundary layer separation: these are zero-net-mass-flow Actuators (ZNMFAs) and fluidic oscillators (FOs). In the present study, a novel FO conf

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Kovacs, S. J., B. Barzilai, and J. E. Perez. "Evaluation of diastolic function with Doppler echocardiography: the PDF formalism." American Journal of Physiology-Heart and Circulatory Physiology 252, no. 1 (1987): H178—H187. http://dx.doi.org/10.1152/ajpheart.1987.252.1.h178.

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A new parametrized diastolic filling (PDF) formalism for evaluation of holodiastolic (left and right) ventricular function via Doppler echocardiography is presented. It is motivated by the empiric observation that during diastole the heart behaves as a suction pump whose dynamics, in certain respects, are those of a damped harmonic oscillator. An expression for elastic recoil (suction) initiated ventricular diastolic fluid inflow velocity v(t) is obtained by differentiation from the solution x(t) of the linear differential equation that describes the motion of a forced, damped harmonic oscilla

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Scoon, Roger N., D. Mark Bristow, Friedrich Johannes Reichhardt, and Andrew A. Mitchell. "The Petrogenesis of the Lower Critical Zone and Lower Group Chromitites, Eastern Bushveld Complex: Incremental Development of Igneous Layering and Injection of Chromite Slurries." Economic Geology 119, no. 7 (2024): 1441–67. http://dx.doi.org/10.5382/econgeo.5102.

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Abstract The petrogenesis of the mafic-ultramafic layered rocks of the Bushveld Complex, South Africa, remains uncertain despite more than a century of intensive research. There is little evidence for the existence of a shallow crustal magma chamber, a principle entrenched in the scientific literature for many years, and we prefer an alternative hypothesis in which igneous layering developed from successive intrusive events. Geochemical discontinuities are explained by radical switches in the composition of intruding parental magmas. Here we investigate the origin of the Lower Critical zone, a

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Zuhaib, Mohd, Mohd Rihan, and Mohd Tayyab Saeed. "A novel method for locating the source of sustained oscillation in power system using synchrophasors data." Protection and Control of Modern Power Systems 5, no. 1 (2020). http://dx.doi.org/10.1186/s41601-020-00178-4.

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AbstractLarge interconnected power systems are usually subjected to natural oscillation (NO) and forced oscillation (FO). NO occurs due to system transient response and is characterized by several oscillation modes, while FO occurs due to external perturbations driving generation sources. Compared to NO, FO is considered a more severe threat to the safe and reliable operation of power systems. Therefore, it is important to locate the source of FO so corrective actions can be taken to ensure stable power system operation. In this paper, a novel approach based on two-step signal processing is pr

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Dissertations / Theses on the topic "Forced oscillation (FO)"

1

(9838448), Tossaporn Surinkaew. "Forced oscillation management in future power grids with high penetration of converter controlled-based resources." Thesis, 2023. https://figshare.com/articles/thesis/Forced_oscillation_management_in_future_power_grids_with_high_penetration_of_converter_controlled-based_resources/23620767.

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Forced oscillation (FO) events were detected in actual power systems, i.e., Nordic and Western America power systems. These events could result in the widespread blackout in the power systems. Accordingly, intensive researches in the FO detection, source identi cation and mit- igation are sought. In future power systems, conventional synchronous generators will be replaced by converter controlled-based generations (CCGs), i.e., wind and solar generations, and battery energy storage systems. Thus, the paradigm shift in power systems will lead to the inferior system strength and inertia scarcity

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