Results 41 to 50 of about 19,020 (254)
Bacterial ratchet motors [PDF]
Proceedings of the National Academy of Sciences, 2010 Self-propelling bacteria are a nanotechnology dream. These unicellular organisms are not just capable of living and reproducing, but they can swim very efficiently, sense the environment, and look for food, all packaged in a body measuring a few microns.
DI LEONARDO, ROBERTO +9 more
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Polymer Testing, 2023 Monotonic and pulsating cyclic compression tests were performed systematically based on high density polyethylene (HDPE). The compressive creep behaviors were further implemented to compare with the ratcheting deformation under the same peak stress level.
Peishan Ding, Xiaotao Zheng, Linwei Ma
doaj +1 more source
Stochastic ratcheting of two dimensional colloids : Directed current and dynamical transitions
, 2015 We present results of molecular dynamics simulations for two-dimensional repulsively interacting colloids driven by a one dimensional asymmetric and commensurate ratchet potential, switching on and off stochastically. This drives a time-averaged directed
Chakraborty, Dipanjan +1 more
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Numerical Investigation of Preload Process of Bolted Joint with Superelastic Shape Memory Alloy
Metals, 2018 A phenomenological constitutive model is developed to describe the uniaxial transformation ratcheting behaviors of the superelastic shape memory alloy (SMA) by employing a cosine–type phase transformation equation with the initial martensite ...
Xiangjun Jiang +5 more
doaj +1 more source
Dynamics, Rectification, and Fractionalization for Colloids on Flashing Substrates
, 2006 We show that a rich variety of dynamic phases can be realized for mono- and bidisperse mixtures of interacting colloids under the influence of a symmetric flashing periodic substrate.
A. Libál +4 more
core +1 more source
Thermo-mechanical parametric analysis of packed-bed thermocline energy storage tanks [PDF]
, 2016 © 2016. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/A packed-bed thermocline tank represents a proved cheaper thermal energy storage for concentrated solar power plants compared with ...
González Acedo, Ignacio +4 more
core +2 more sources
Ferrofluids as Thermal Ratchets [PDF]
Physical Review Letters, 2003 Colloidal suspensions of ferromagnetic nano-particles, so-called ferrofluids, are shown to be suitable systems to demonstrate and investigate thermal ratchet behavior: By rectifying thermal fluctuations, angular momentum is transferred to a resting ferrofluid from an oscillating magnetic field without net rotating component.
Engel, A +3 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
openaire +4 more sources
Calculation of a lower bound ratchet limit part 2 : Application to a pipe intersection and dissimilar material join [PDF]
, 2013 In an accompanying paper in this issue a lower bound method based on Melan's theorem was derived and implemented into the Linear Matching Method ratchet analysis procedure.
Chen, Haofeng +2 more
core +1 more source
Microscopic origin of granular ratcheting
, 2007 Numerical simulations of assemblies of grains under cyclic loading exhibit ``granular ratcheting'': a small net deformation occurs with each cycle, leading to a linear accumulation of deformation with cycle number.
G. Festag +7 more
core +3 more sources