Results 71 to 80 of about 136,212 (303)

Bifurcations and Transitions to Chaos in An Inverted Pendulum

open access: yes, 1998
We consider a parametrically forced pendulum with a vertically oscillating suspension point. It is well known that, as the amplitude of the vertical oscillation is increased, its inverted state (corresponding to the vertically-up configuration) undergoes
Hu, Bambi, Kim, Sang-Yoon
core   +1 more source

On the relationship between the vortex formation process and cylinder wake vortex patterns [PDF]

open access: yes, 2004
The idea of vortex formation time, originally developed for vortex ring formation, is extended to bluff-body flows. Effects related to characteristic vortex formation time are shown for both the cylinder starting from rest and the cylinder undergoing ...
Gharib, Morteza, Jeon, David
core   +1 more source

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source

Design Features And Stress Analysis Of A 0.686-Scale Standard Dynamics Model [PDF]

open access: yes, 1990
A 0 .686-Scale Standard Dynamics Model Incorporating Some Tpecial Features Was Designed And Built At NAL .A Brief . Description Of The Various Design And Construction Features, Load Estimations And A Detailed Stress Analysis Of The Model Are Presented In
Sundaramurthy, H, Verma, RS
core  

Complete Delocalization in a Defective Periodic Structure [PDF]

open access: yes, 2017
We report on the existence of stable, completely delocalized response regimes in a nonlinear defective periodic structure. In this state of complete delocalization, despite the presence of the defect, the system exhibits in-phase oscillation of all units
Daraio, Chiara, Yousefzadeh, Behrooz
core   +3 more sources

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

open access: yesAdvanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun   +3 more
wiley   +1 more source

Forced oscillation of piezoceramic cylinder with circumpolarization of material

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
The nonstationary elasto-electrodynamics problem for an anisotropic piezoceramic cylinder of finite size with circumpolarization of material is considered for the case when the tangential stresses and the electric potential influence on the radial ...
D. A. Shlyakhin
doaj   +3 more sources

On the Effect of Forced-Oscillation Amplitude upon the Flow in a Cubic Cavity Heated Below

open access: yesJournal of Fluid Science and Technology, 2013
The authors numerically investigate the forced-oscillation-frequency responses on flow and thermal characteristics of the thermal convection in a cubic cavity heated from below in the gravitational field, concerning global quantities such as spatially ...
Katsuya HIRATA   +4 more
doaj   +1 more source

Forced oscillations of nonspherical bubbles [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1977
The oscillation of a gas bubble in liquid under externally applied sinusoidal pressure field is studied. When the applied pressure amplitude is small and the forcing frequency is not in the neighborhood of the resonance frequency of the bubble, the familiar linear results are obtained.
openaire   +4 more sources

The starfish experiment: a Lagrangian approach [PDF]

open access: yes, 2003
The present paper analyses the free surface deformation of a liquid metal drop under the influence of an alternating magnetic field. The analysis is restricted to the first axi- symmetric mode oscillation.
Etay, J.   +2 more
core   +1 more source

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