Results 11 to 20 of about 117,063 (262)
Understanding Low-Frequency Oscillation in Power Systems
International Journal of Electrical Engineering and Education, 2010 This paper presents a complete overview of low-frequency oscillation phenomena in power systems. The definition of low-frequency oscillation and its classification are clearly explained. Some power system blackout incidents due to low-frequency oscillation and the lesson learned from those incidents are also reported in the paper.
Prasertwong, K. +2 more
exaly +6 more sources
Altered low-frequency oscillation amplitude of resting state-fMRI in patients with discogenic low-back and leg pain. [PDF]
J Pain Res, 2018 Fuqing Zhou,1,2 Lili Gu,3 Shunda Hong,1,2 Jiaqi Liu,1,2 Jian Jiang,1,2 Muhua Huang,1,2 Yong Zhang,3 Honghan Gong1,2 1Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi, People’s Republic of China ...
Zhou F +7 more
europepmc +2 more sources
Synchronization of Low-Frequency Oscillation in Power Systems
Energies, 2017 This paper presents the well-documented concept of synchronization of low frequency oscillation occurring in power systems and describes the characteristics of sync occurring in basic electrical circuits.
Seon-Ju Ahn, Joon-Ho Choi
exaly +2 more sources
Combustion and Flame, 2010 The oscillation behavior of laminar lifted flames under the influence of low-frequency AC has been investigated experimentally in coflow jets. Various oscillation modes were existed depending on jet velocity and the voltage and frequency of AC ...
S H Won, Suk Ho Chung
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A Low-Frequency Oscillator [PDF]
Review of Scientific Instruments, 1953 A low-frequency simple-harmonic oscillator, employing a relatively new method of approach, is described. An electronic analog computer of the differential analyzer type is used to solve the differential equation of a mass-spring system. Three dc operational amplifiers perform the computation and a sinusoidal output is obtained as the solution of the ...
Howe, Robert Milton +1 more
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A synthetic low-frequency mammalian oscillator [PDF]
Nucleic Acids Research, 2010 Circadian clocks have long been known to be essential for the maintenance of physiological and behavioral processes in a variety of organisms ranging from plants to humans. Dysfunctions that subvert gene expression of oscillatory circadian-clock components may result in severe pathologies, including tumors and metabolic disorders.
Tigges Marcel +4 more
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A numerical study of an inline oscillating cylinder in a free stream [PDF]
, 2011 Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S. +5 more
core +1 more source
HIGH AND LOW FREQUENCY OSCILLATIONS IN DRUG EPIDEMICS [PDF]
International Journal of Bifurcation and Chaos, 2006 We extend the two-dimensional model of drug use introduced in [Behrens et al., 1999, 2000, 2002] by considering two additional states that represent in more detail newly initiated ("light") users' response to the drug experience. Those who dislike the drug quickly "quit" and briefly suppress initiation by others.
J. P. Caulkins +3 more
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A Low Frequency Oscillator [PDF]
Nature, 1925 IT may be of interest to readers of NATURE who are working with low frequency to know of a new form of oscillator.
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Low frequency oscillations of the magnetosphere [PDF]
2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014 Sudden pulses in the model solar wind sets the Earth's magnetosphere into damped oscillatory motions. A simple model is capable of explaining many of the basic properties of these oscillations, giving scaling laws for their characteristics in terms of the parameters of the problem, such as the Solar wind momentum density. The period of the oscillations,
Borve, Steiner +3 more
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