Results 11 to 20 of about 679,628 (284)
Competitive Failure of Loosening and Fatigue of Bolts under Composite Excitation
Shock and Vibration, 2021 At present, research on the loosening of bolts under transverse excitation and their fatigue under axial excitation has been relatively mature, but research on the competitive relationship and failure characteristics between loosening and fatigue of ...
Guang-Wu Yang +4 more
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Vector Boson Excitations Near Deconfined Quantum Critical Points [PDF]
Physical Review Letters, 2013 We show that the N el states of two-dimensional antiferromagnets have low energy vector boson excitations in the vicinity of deconfined quantum critical points. We compute the universal damping of these excitations arising from spin-wave emission. Detection of such a vector boson will demonstrate the existence of emergent topological gauge excitations
Huh, Yejin +2 more
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Shock and Vibration, 2022 In this paper, the bifurcation and chaotic motion of a piecewise Duffing oscillator with delayed displacement feedback under harmonic excitation are studied.
Zhang Ming-Xin +3 more
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Laser-induced valence electron excitation in acetylene
Frontiers in Physics, 2022 Strong-field induced valence electron excitation is a common process in strong field interaction with atoms and molecules. In the case of polyatomic molecules, the effects of ionization from low-lying molecular orbitals and nuclear dynamics during the ...
Hongtao Hu +6 more
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Meson excitation time as a probe of holographic critical point
European Physical Journal C: Particles and Fields, 2023 We study the time evolution of expectation value of Wilson loop as a non-local observable in a strongly coupled field theory with a critical point at finite temperature and nonzero chemical potential, which is dual to an asymptotically AdS charged black ...
Ali Hajilou
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Inventions, 2023 A previous study proposed an optimal vibration isolator for self-excitation, but the solution results showed a critical drawback for the basement input.
Young Whan Park +2 more
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Frontiers in Built Environment, 2017 A set of multiple impulses is introduced as a substitute of many-cycle harmonic waves which represent the long-duration earthquake ground motion. A closed-form expression is derived of the elastic–plastic response of a single-degree-of-freedom structure ...
Kotaro Kojima, Izuru Takewaki
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Optimal Viscous Damper Placement for Elastic-Plastic MDOF Structures Under Critical Double Impulse
Frontiers in Built Environment, 2019 A new method for optimal viscous damper placement is proposed for elastic-plastic multi-degree-of-freedom (MDOF) structures subjected to the critical double impulse as a representative of near-fault ground motions.
Hiroki Akehashi, Izuru Takewaki
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Nonlinear boudary value problem in the case of parametric resonance [PDF]
Компьютерные исследования и моделирование, 2015 We construct necessary and sufficient conditions for the existence of solution of seminonlinear matrix boundary value problem for a parametric excitation system of ordinary differential equations.
Sergey Mikhaylovich Chujko +2 more
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Frontiers in Built Environment, 2019 An equi-spaced consecutive impulse input is treated as a simplified representative for a long-duration earthquake ground motion. The key property of such input can be captured approximately by using harmonic waves.
Yoshito Saotome +2 more
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