Results 21 to 30 of about 1,482,446 (314)

An improved X-band relativistic triaxial klystron amplifier with active suppression of asymmetric TM mode self-excitation

open access: yesAIP Advances, 2020
The self-excitation of asymmetric modes is one of the main factors limiting the long-pulse operation of the relativistic triaxial klystron amplifier (TKA). Research studies have revealed that the asymmetric TM modes with negative beam loading conductance
Yunxiao Zhou   +4 more
doaj   +1 more source

On stabilizability of the upper equilibrium of the asymmetrically excited inverted pendulum

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
Using purely elementary methods, necessary and sufficient conditions are given for the existence of $T$-periodic and $2T$-periodic solutions around the upper equilibrium of the mathematical pendulum when the suspension point is vibrating vertically with ...
László Csizmadia
doaj   +1 more source

Asymmetric sequential Landau-Zener dynamics of Bose condensed atoms in a cavity [PDF]

open access: yes, 2016
We explore the asymmetric sequential Landau-Zener (LZ) dynamics in an ensemble of interacting Bose condensed two-level atoms coupled with a cavity field.
Gong, Pu   +4 more
core   +2 more sources

Isospin dependence of mass-distribution shape of fission fragments of Hg isotopes [PDF]

open access: yes, 2013
Using an improved scission-point model, the mass distributions are calculated for induced fission of even Hg isotopes with mass numbers A=174 to 196. With increasing A of a fissioning AHg nucleus the mass distribution evolves from symmetric for 174Hg, to
Adamian, Gurgen   +3 more
core   +1 more source

On the self-excitation mechanisms of Plasma Series Resonance oscillations in single- and multi-frequency capacitive discharges [PDF]

open access: yes, 2015
The self-excitation of plasma series resonance (PSR) oscillations is a prominent feature in the current of low pressure capacitive radio frequency (RF) discharges.
Brandt, Steven   +5 more
core   +3 more sources

Tunable asymmetric spin wave excitation and propagation in a magnetic system with two rectangular blocks

open access: yesScientific Reports, 2021
Asymmetric spin wave excitation and propagation are key properties to develop spin-based electronics, such as magnetic memory, spin information and logic devices.
Dongpyo Seo   +5 more
doaj   +1 more source

Breit-Wigner-Fano lineshapes in Raman spectra of graphene [PDF]

open access: yes, 2014
Excitation of electron-hole pairs in the vicinity of the Dirac cone by the Coulomb interaction gives rise to an asymmetric Breit-Wigner-Fano lineshape in the phonon Raman spectra in graphene.
Dresselhaus, Mildred S.   +3 more
core   +2 more sources

Vertical Oscillation of Railway Vehicle Chassis with Asymmetry Effect Consideration

open access: yesSensors, 2022
This paper deals with the problem of vertical oscillation of rail and road vehicles under symmetrical and asymmetrical loading and symmetrical and asymmetrical kinematic excitation.
Frantisek Klimenda   +4 more
doaj   +1 more source

Permittivity-Asymmetric Quasi-Bound States in the Continuum. [PDF]

open access: yesNano letters (Print), 2022
Breaking the in-plane geometric symmetry of dielectric metasurfaces allows us to access a set of electromagnetic states termed symmetry-protected quasi-bound states in the continuum (qBICs).
Rodrigo Berté   +9 more
semanticscholar   +1 more source

Photoinduced Fano-resonance of coherent phonons in zinc [PDF]

open access: yes, 2006
Utilizing femtosecond optical pump-probe technique, we have studied transient Fano-resonance in zinc. At high excitation levels the Fourier spectrum of the coherent E$_{2g}$ phonon exhibits strongly asymmetric line shape, which is well modeled by the ...
G. A. Bolotin   +4 more
core   +2 more sources

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