Results 21 to 30 of about 196 (190)
Potchefstroom Electronic Law Journal, 2023 Area-based approaches are a central component of global efforts to conserve biodiversity. While the focus of many countries has been mainly on protected areas, other effective area-based conservation measures (OECMS) have been accorded global ...
Alexander Paterson
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Mechanochemical active ratchet
Scientific Reports, 2023 AbstractSelf-propelled nanoparticles moving through liquids offer the possibility of creating advanced applications where such nanoswimmers can operate as artificial molecular-sized motors. Achieving control over the motion of nanoswimmers is a crucial aspect for their reliable functioning.
Artem Ryabov, Mykola Tasinkevych
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Applied Sciences, 2021 Integral bridges are a class of bridges with integral or semi-integral abutments, designed without expansion joints in the bridge deck of the superstructure.
Lila Dhar Sigdel +4 more
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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 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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Mean curvature effect on the response and failure of round-hole tubes submitted to cyclic bending
Advances in Mechanical Engineering, 2021 This paper presents an experiment and analysis to investigate the response and failure of 6061-T6 aluminum alloy round-hole tubes with different hole diameters of 2, 4, 6, 8, and 10 mm subjected to cyclic bending at different curvature ratios of −1.0, −0.
Kuo-Long Lee, Yu-Chun Tsai, Wen-Fung Pan
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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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Ratcheting of Granular Materials [PDF]
Physical Review Letters, 2004 We investigate the quasi-static mechanical response of soils under cyclic loading using a discrete model of randomly generated convex polygons. This response exhibits a sequence of regimes, each one characterized by a linear accumulation of plastic deformation with the number of cycles.
Alonso-Marroquin, F, Herrmann, HJ
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Repeated loading model for elastic–plastic contact of geomaterial
Advances in Mechanical Engineering, 2018 A new nonlinear hysteretic model with considering the loading, unloading, and reloading processes is developed based on Drucker–Prager yield criterion and finite-element analysis.
Jian Wang +3 more
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On shakedown and ratchetting of conforming frictional systems
Vietnam Journal of Mechanics, 2009 Conforming contact is found on many important areas: materials with cracks, inclusions, layered structures, pinned geometries, etc. Coulomb friction is non-associative i.e.
M. Ciavarella
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