Results 31 to 40 of about 1,112,638 (351)

Antiperiodic oscillations [PDF]

open access: yesScientific Reports, 2013
The investigation of regular and irregular patterns in nonlinear oscillators is an outstanding problem in physics and in all natural sciences. In general, regularity is understood as tantamount to periodicity. However, there is now a flurry of works proving the existence of "antiperiodicity", an unfamiliar type of regularity.
Freire, Joana G.   +4 more
openaire   +3 more sources

Network deficiency exacerbates impairment in a mouse model of retinal degeneration

open access: yesFrontiers in Systems Neuroscience, 2012
Neural oscillations play an important role in normal brain activity, but also manifest during Parkinson’s disease, epilepsy, and other pathological conditions. The contribution of these aberrant oscillations to the function of the surviving brain remains
Christopher Wai-Man Yee   +2 more
doaj   +1 more source

The Heisenberg oscillator [PDF]

open access: yesBulletin of Mathematical Sciences, 2012
In this short note, we determine the spectrum of the Heisenberg oscillator which is the operator defined as $L + |z|^2$ on the 3-dimensional Heisenberg group $H_1=\mathbb C \times \mathbb R$ where $L$ stands for the positive sublaplacian and $z$ for the complex variable of a point of the group.
openaire   +5 more sources

Oscillation Modes in Multiresonant Oscillator Circuits [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 2016
This work has been funded by the Spanish Government under contract TEC2014-60283-C3-1-R, the European Regional Development Fund (ERDF/FEDER) and the Parliament of Cantabria (12.JP02.64069).
Ramírez Terán, Franco Ariel   +2 more
openaire   +3 more sources

Electrical resonance mitigation scheme based on damping controller for wind farm integration through VSC-HVDC system

open access: yesThe Journal of Engineering, 2019
Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) technology promotes the development and utilisation of large-scale wind power, but the power oscillation might occur due to the interaction between two control systems. In
Xiaobao Hu   +4 more
doaj   +1 more source

Oscillation modes of dc microdischarges with parallel-plate geometry

open access: yes, 2011
Two different oscillation modes in microdischarge with parallel-plate geometry has been observed: relaxation oscillations with frequency range between 1.23 and 2.1 kHz and free-running oscillations with 7 kHz frequency.
Dragana Marić   +7 more
core   +1 more source

Large amplitude oscillations in prominences [PDF]

open access: yes, 2009
Since the first reports of oscillations in prominences in the 1930s, there have been major theoretical and observational developments to understand the nature of these oscillatory phenomena, leading to the whole new field of the so-called “prominence ...
Isobe, H., Jain, R., Tripathi, D.
core   +2 more sources

Trapped, Two-Armed, Nearly Vertical Oscillations in Polytropic Disks

open access: yes, 2010
We have examined trapping of two-armed nearly vertical oscillations in polytropic disks. Two-armed nearly vertical oscillations are interesting in the sense that they are trapped in an inner region of disks with proper frequencies, if the inner edge of ...
Kato, Shoji
core   +1 more source

Subiculum as a generator of sharp wave-ripples in the rodent hippocampus

open access: yesCell Reports, 2021
Summary: Sharp wave-ripples (SWRs) represent synchronous discharges of hippocampal neurons and are believed to play a major role in memory consolidation. A large body of evidence suggests that SWRs are exclusively generated in the CA3-CA2 network.
Barbara Imbrosci   +7 more
doaj  

Quantum correlations for two coupled oscillators interacting with two heat baths [PDF]

open access: yes, 2019
We study a system of two coupled oscillators (the $A$ oscillator) each of the oscillators linearly interacts with its own heat bath consisting of a set of independent harmonic oscillators (the $B$ oscillators). The initial state of the $A$ oscillator is taken to be coherent while the $B$ oscillators are in thermal states.
arxiv   +1 more source

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