Results 201 to 210 of about 256,373 (245)
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Torsional Vibration and Related Coupled Vibration
2019Torsional vibrations are often problematic in transient responses when a rotor-bearing system starts up. The vibration is more predominant and unavoidable in geared rotor systems. Though torsional vibration poses long-term problems, new methods of rotor design have been established by employing the transfer matrix method, which are capable of ...
Osami Matsushita +4 more
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Particle vibration coupling in207Pb
Zeitschrift für Physik, 1969States in207Pb are observed in the proton decay of the lowest 5− and 4− analog resonances in208Bi. Evidence is given that one group of these states corresponds to the206Pb(2u, 0.8)⊗g9/2 and208Pb(3−, 2.6)⊗p32/−1 multiplets.
E. Grosse +4 more
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Vibrational antiresonance in nonlinear coupled systems
Physical Review E, 2019We examine the response of a system of coupled nonlinear oscillators driven by a rapidly varying field, to a low frequency weak periodic excitation of one of the oscillators. The response amplitude of the weak field-driven oscillator at an optimal strength of the rapidly varying field exhibits a strong suppression accompanied by a large negative shift ...
Prasun, Sarkar, Deb Shankar, Ray
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Coupled Vibration of Embedded Foundation
Journal of Geotechnical Engineering, 1989The paper describes a simplified mathematical model of the coupled horizontal and rocking vibration of an embedded foundation. Vibration tests of the foundation with different embedments were conducted and compared with different methods. Conclusions drawn from the theoretical analysis and dynamic experiments are presented.
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Solvent Polarity under Vibrational Strong Coupling.
Journal of the American Chemical Society, 2023Vibrational strong coupling (VSC) occurs when molecular vibrations hybridize with the modes of an optical cavity, an interaction mediated by vacuum fluctuations. VSC has been shown to influence the rates and selectivity of chemical reactions. However, a clear understanding of the mechanism at play remains elusive.
Piejko, Maciej +6 more
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Vibration-attenuating coupling device
The Journal of the Acoustical Society of America, 1986A vibration-attenuating coupling device for use with two rigid members one of which is subject to vibrations produced by, for example, an internal combustion engine installed on an engine driven vehicle, characterized by a laminar vibration absorptive structure composed of a main resilient member fitted to the rigid member subject to vibrations and at ...
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Vibrational coupling in carboxylic acid dimers
The Journal of Chemical Physics, 2005The vibrational level splitting in the ground electronic state of carboxylic acid dimers mediated by the doubly hydrogen-bonded networks are investigated using pure and mixed dimers of benzoic acid with formic acid as molecular prototypes. Within the 0–2000-cm−1 range, the frequencies for the fundamental and combination vibrations of the two dimers are
Chayan K, Nandi +2 more
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Transducer with coupled vibrators
The Journal of the Acoustical Society of America, 2007A transducer includes a Langevin type vibrator, a bending vibrator, and a ring-like member. The Langevin type vibrator has a construction in which a front mass, a cylindrical vibrator, and a rear mass are provided in tandem, and those elements are tightened by a bolt. The bending vibrator is provided apart from the front mass.
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Vibrational–vibrational coupling in air at low humidities
The Journal of the Acoustical Society of America, 1988Calculations of sound absorption in air are traditionally based on the assumption that molecular relaxations in nitrogen and oxygen are independent. In binary mixtures of these two gases, however, they are not independent; rather, molecular relaxation is known to be controlled by a very strong vibrational–vibrational (V–V) coupling, which influences ...
Allan J. Zuckerwar, Keith W. Miller
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Vibration-dampening flexible coupling
The Journal of the Acoustical Society of America, 1982A flexible coupling member is constructed from a length of elastomeric cylindrical tubing. The opposite ends of the tubing are closed by axially spaced ribs positioned at right angles, and the outer surfaces of the flexible coupling between the ribs are bounded by smooth warped surfaces. The interior of the coupling may be hollow or solid. If hollow, a
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