Results 21 to 30 of about 2,420 (218)
Ratcheting droplet pairs [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2018 Millimetric droplets may be levitated on the surface of a vibrating fluid bath. Eddi et al. [Europhys. Lett. 82, 44001 (2008)] demonstrated that when a pair of levitating drops of unequal size are placed nearby, they interact through their common wavefield in such a way as to self-propel through a ratcheting mechanism.
C. A. Galeano-Rios +3 more
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Confined Brownian ratchets [PDF]
The Journal of Chemical Physics, 2013 We analyze the dynamics of Brownian ratchets in a confined environment. The motion of the particles is described by a Fick-Jakobs kinetic equation in which the presence of boundaries is modeled by means of an entropic potential. The cases of a flashing ratchet, a two-state model, and a ratchet under the influence of a temperature gradient are analyzed ...
Malgaretti, Paolo +2 more
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Ratcheting behavior of Eurofer97 at 550 °C
Nuclear Materials and Energy, 2018 The components in reactor are usually exposed to cyclic loading caused by frequent startups, shutdown and load fluctuations which lead to ratcheting effect.
Kuo Zhang, Jarir Aktaa
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Chaos in kicked ratchets [PDF]
Physical Review E, 2015 We present a minimal one-dimensional deterministic continuous dynamical system that exhibits chaotic behavior and complex transport properties. Our model is an overdamped rocking ratchet that is periodically kicked with a delta function potential. We develop an analytical approach that predicts many key features of the system, such as current reversals,
Zarlenga, Daniel Gustavo +3 more
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Ratcheting Behavior of Intervertebral Discs Under Cyclic Compression: Experiment and Prediction
Orthopaedic Surgery, 2019 Objective To evaluate the ratcheting behavior of intervertebral discs (IVD) by experiments and theoretical study. Method The lumbar spines of sheep were obtained at a local slaughterhouse, and the IVD was processed with upper and lower vertebral bodies ...
Chun‐qiu Zhang +6 more
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Ratcheting occurrence conditions of piping under sinusoidal excitations
Mechanical Engineering Journal, 2020 Ratcheting is one of the dominant failure modes under excessive earthquakes and may cause extreme failures of structures (e.g., collapse). We focused on clarifying the ratcheting mechanism of piping under sinusoidal excitations.
Jinqi LYU +3 more
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Materials Research Express, 2020 The uniaxial ratcheting behavior of face-centered cubic 6061 aluminum alloy is investigated theoretically based on the crystal plasticity theory. In this model, a simplified flow rule is adopted for convenient engineering application, and the classical ...
Yawei Dong, Xu He, Zhiyong Zhang
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Applied Sciences, 2020 Safety assessment of structures can be obtained employing limit design to overcome uncertainties concerning actual response due to inelastic constitutive behavior and more generally to non-linear structural response and loads’ random variability.
Simone Palladino +5 more
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Advances in Mechanical Engineering, 2023 The present study examines the effect of the thickness, cutouts numbers, and different cutouts shapes on the ratcheting behavior of 304 steel sheets under cyclic axial loading.
Ali Shahrjerdi, Ali SafariFard
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The Muller’s Ratchet and Aging
Trends in Genetics, 2020 Aging entails an irreversible deceleration of physiological processes, altered metabolic activities, and a decline of the integrity of tissues, organs, and organ systems. The accumulation of alterations in the genetic and epigenetic spaces has been proposed as an explanation for aging.
Govindaraju, Diddahally R. +2 more
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