Results 31 to 40 of about 561,215 (301)

Nonuniform gyrotropic oscillation of skyrmion in a nanodisk

open access: yesAIP Advances, 2018
It was predicted that magnetic skyrmions have potential application in the spin nano-oscillators. The oscillation frequency is a key parameter. In this paper, we study the skyrmion relaxation in a FeGe nanodisk and find that the oscillation frequency ...
Shengjie Xuan, Yan Liu
doaj   +1 more source

A neural network approach for composite fractional relaxation oscillation equations in complex dynamical systems [PDF]

open access: yesAIP Advances
The relaxation oscillator is a system that operates on the tendency of physical processes to return to equilibrium after being disturbed. Its governing equation, the relaxation–oscillation equation, plays a central role in diverse fields such as physics,
Jyoti Shekhawat   +3 more
doaj   +1 more source

Advanced Relaxation Oscillation SQUIDs [PDF]

open access: yes, 1998
This thesis describes the development of low Tc superconducting quantum interference devices (SQUIDs) based on the relaxation oscillation principle. SQUIDs are the most sensitive magnetic flux sensors available nowadays.
van Duuren, M.J.
core   +2 more sources

A Temperature-to-Frequency Converter-Based On-Chip Temperature Sensor with an Inaccuracy of +0.65 °C/−0.49 °C

open access: yesSensors, 2023
This paper proposes a temperature sensor based on temperature-frequency conversion using 180 nm CMOS technology. The temperature sensor consists of a proportional-to-absolute temperature (PTAT) current generating circuit, a relaxation oscillator with ...
Zicong Xu   +4 more
doaj   +1 more source

Relaxation Oscillation SQUIDs With High δV/δφ [PDF]

open access: yes, 1992
Relaxation oscillation SQUIDs (ROSs) based on Nb/Al, AlOx/Al/Nb Josephson tunnel junctions have been designed and fabricated. The hysteretic SQUIDs (superconducting quantum interference devices) have a maximum critical current of about 130 μA and an ...
Nijstad, H.   +3 more
core   +2 more sources

Spin relaxation and carrier recombination in GaInNAs multiple quantum wells [PDF]

open access: yes, 2007
Electron spin relaxation and carrier recombination were investigated in gallium indium nitride arsenide (GaInNAs) multiple quantum wells, using picosecond optical pulses.
Reith, Charis
core   +2 more sources

Two-stroke relaxation oscillators [PDF]

open access: yesNonlinearity, 2020
Abstract Two-stroke relaxation oscillations consist of two distinct phases per cycle—one slow and one fast—which distinguishes them from the well-known van der Pol-type ‘four-stroke’ relaxation oscillations. This type of oscillation can be found in singular perturbation problems in
Samuel Jelbart, Martin Wechselberger
openaire   +3 more sources

Stochastic and chaotic relaxation oscillations [PDF]

open access: yesJournal of Statistical Physics, 1989
For relaxation oscillators stochastic and chaotic dynamics are investigated. The effect of random perturbations upon the period is computed. For an extended system with additional state variables chaotic behavior can be expected. As an example, the Van der Pol oscillator is changed into a third-order system admitting period doubling and chaos in a ...
Grasman, J., Roerdink, J.B.T.M.
openaire   +3 more sources

Influence of oscillation strain on the dynamic mechanical relaxation of a La-based metallic glass [PDF]

open access: yes, 2023
Dynamic mechanical relaxation processes, particularly secondary relaxation processes, are closely related to the mechanical and physical properties of metallic glasses.
Qiao, JiChao   +7 more
core   +1 more source

Elucidation of mechanisms for stick slip melt fracture of polymer melt (Experimental analysis of unstable flow of high density polyethylene melt)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
During polymer melt extrusion from a circular nozzle, the extrudate at low flow rate shows a stable linear shape with smooth surface but the extrudate at higher flow rate shows unstable shapes with spiral, rosary, or zig-zag structures.
Masao YAMAMOTO
doaj   +1 more source

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