arXiv: Soft Condensed Matter
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#1Daisuke IshikawaH-Index: 13
#2Alfred Q. R. BaronH-Index: 39
We investigate the presence of an acoustic-quasi-elastic interaction contribution in the IXS spectra of liquid water at 301K using inelastic x-ray scattering with sub-meV energy resolution at momentum transfers 0.77 2/nm at values consistent with a viscoelastic generalization of the Landau-Placzek relation.
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#1Giancarlo FranzeseH-Index: 31
Last. Ivan ColuzzaH-Index: 20
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Water plays a fundamental role in protein stability. However, the effect of the properties of water on the behaviour of proteins is only partially understood. Several theories have been proposed to give insight into the mechanisms of cold and pressure denaturation, or the limits of temperature and pressure above which no protein has a stable, functional state, or how unfolding and aggregation are related. Here we review our results based on a theoretical approach that can rationalize the water c...
#1Jean-François Molinari (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 43
#2Son Pham-BaH-Index: 3
We conduct boundary element simulations of a contact problem consisting of an elastic medium subject to tangential load. Using a particle swarm optimization algorithm, we find the optimal shape and location of the micro-contacts to maximize for a given load the stored elastic energy contributing to the removal of a spherical particle contained in between the micro-contacts. We propose an ice scream scoop as an application of this optimization process.
#2Patrick JudeinsteinH-Index: 33
Last. Gilles TarjusH-Index: 58
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The proneness of water to crystallize is a major obstacle to understanding its putative exotic behavior in the supercooled state. It also represents a strong practical limitation to cryopreservation of biological systems. Adding some concentration of glycerol, which has a cryoprotective effect preventing to some degree water crystallization, has been proposed as a possible way out, provided the concentration is small enough for water to retain some of its bulk character and/or for limiting the d...
#1Michael BleyH-Index: 1
#2Pablo I. HurtadoH-Index: 21
Last. Arturo Moncho-JordáH-Index: 18
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We employ Reactive Dynamical Density Functional Theory (R-DDFT) and Reactive Brownian Dynamics (R-BD) simulations to investigate the dynamics of a suspension of active soft Gaussian colloids with binary interaction switching, i.e., a one-component colloidal system in which every particle stochastically switches at predefined rates between two interaction states with different mobility. Using R-DDFT we extend a theory previously developed to access the dynamics of inhomogeneous liquids to study t...
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#1Shaopeng Jiang (SU: Syracuse University)H-Index: 1
#2Siddharth G. Chatterjee (SUNY ESF: SUNY College of Environmental Science and Forestry)H-Index: 13
A mathematical model using classical cake-filtration theory and the surface-renewal concept is formulated for describing constant flux, cross-flow microfiltration (CFMF). The model provides explicit analytical expressions for the transmembrane pressure drop (TMP) and cake-mass buildup on the membrane surface as a function of filtration time. The basic parameters of the model are the membrane resistance, specific cake resistance, and rate of surface renewal. The surface-renewal model has two form...
#1Peter OlssonH-Index: 20
We carry out overdamped simulations in a simple model of jamming - a collection of bi-disperse soft core frictionless disks in two dimensions - with the aim to explore the finite size dependence of different quantities, both the relaxation time obtained from the relaxation of the energy and the pressure-equivalent of the shear viscosity. The motivation for the paper is the observation [Nishikawa et al., J. Stat. Phys, 182, 37 (2021)] that there are finite size effects in the relaxation time, $\t...
#1Carlos FloydH-Index: 4
#2Haoran NiH-Index: 2
Last. Garegin A. PapoianH-Index: 33
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Mechanochemical simulations of actomyosin networks are traditionally based on one-dimensional models of actin filaments having zero width. Here, and in the follow up paper, approaches are presented for more efficient modelling which incorporates stretching, bending, shearing and twisting of actin filaments. Our modelling of a semi-flexible filament with a small but finite width is based on the Cosserat theory of elastic rods, which allows for six degrees of freedom at every point on the filament...
Last. Tyler N. Shendruk (University of Edinburgh)H-Index: 15
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We show that confining extensile nematics in 3D channels leads to the emergence of two self-organized flow states with nonzero helicity. The first is a pair of braided anti-parallel streams -- this double helix occurs when the activity is moderate, anchoring negligible and reduced temperature high. The second consists of axially aligned counter-rotating vortices -- this grinder train arises between spontaneous axial streaming and the vortex lattice. These two unanticipated helical flow states il...
#1Stefano MusacchioH-Index: 25
#2Victor SteinbergH-Index: 47
Last. Dario VincenziH-Index: 15
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Polymers in non-uniform flows undergo strong deformation, which in the presence of persistent stretching can result in the coil-stretch transition. The statistics of polymer deformation depends strongly on the nature and the properties of the flow. Sultanov et al. [Phys. Rev. E 103, 033107 (2021)] have characterized the coil-stretch transition in an elastic turbulence of von K\'arm\'an flow by measuring the entropy of polymer extension as a function of the Weissenberg number. The entropic charac...
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