Results 11 to 20 of about 13,297 (263)
Clinics, 2012 OBJECTIVES: Pulmonary involvement in rheumatoid arthritis is directly responsible for 10% to 20% of all mortality. The best way to improve the prognosis is early detection and treatment.
Alvaro Camilo Dias Faria +4 more
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Mitigating Forced Shock-Wave Oscillation with Two-Dimensional Wavy Surface
Aerospace, 2022 Oscillating flow is one challenge for wide-Mach-number-range flight with supersonic/hype-rsonic vehicles. Aiming to mitigate the large-amplitude forced shock-wave oscillation, a 2D wavy surface has been implemented onto the flat-bottomed wall of the ...
Cheng Yao +3 more
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Forced Oscillation Technique and Childhood Asthma
Allergology International, 2012 Most infants and preschool children are not able to voluntarily perform the physiological maneuvers required to complete the pulmonary function tests that are used in adults and older children.
Hiroyuki Mochizuki +2 more
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Forced oscillation of second-order nonlinear dynamic equations on time scales
Electronic Journal of Qualitative Theory of Differential Equations, 2009 In this paper, by defining a class of functions, we establish some oscillation criteria for the second order nonlinear dynamic equations with forced term $$ x^{\Delta\Delta}(t)+a(t)f(x(q(t)))=e(t) $$ on a time scale $\mathbb{T}.$ Our results unify the ...
Tongxing Li +3 more
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Location and Mechanism Analysis of Oscillation Source in Power Plant
IEEE Access, 2020 A generation unit that is poorly damped or has periodical mechanical power outputs from its prime mover can become a source of oscillation in a bulk power system. Choosing the proper electric quantity to extract the oscillation characteristics is crucial
Yanhui Xu, Zheng Gu, Kai Sun
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On oscillations in the Social Force Model [PDF]
Physica A: Statistical Mechanics and its Applications, 2015 The Social Force Model is one of the most prominent models of pedestrian dynamics. As such naturally much discussion and criticism has spawned around it, some of which concerns the existence of oscillations in the movement of pedestrians. This contribution is investigating under which circumstances, parameter choices, and model variants oscillations do
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General Forced Oscillations in a Real Power Grid Integrated with Large Scale Wind Power
Energies, 2016 According to the monitoring of the wide area measurement system, inter-area oscillations happen more and more frequently in a real power grid of China, which are close to the forced oscillation.
Ping Ju +4 more
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Shanghai Jiaotong Daxue xuebao, 2022 There exists the subsynchronous oscillation (SSO) instability risk in large-scale photovoltaic(PV) grid-connected systems with series compensation, which is generally explained by the negative damped oscillation theory.
LIN Yong, KANG Jiale, YU Hao, CHEN Honglin, YANG Yanji, CHEN Wuhui
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Lyapunov characterization of forced oscillations [PDF]
Automatica, 2005 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tingshu Hu, Andrew R. Teel, Zongli Lin
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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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