Search Results - "Marconi, Umberto Marini Bettolo"
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Towards a statistical mechanical theory of active fluids
Published in Soft matter (01-01-2015)“…We present a stochastic description of a model of N mutually interacting active particles in the presence of external fields and characterize its steady state…”
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2
Activity induced delocalization and freezing in self-propelled systems
Published in Scientific reports (04-02-2019)“…We study a system of interacting active particles, propelled by colored noises, characterized by an activity time τ, and confined by a single-well anharmonic…”
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3
Clausius Relation for Active Particles: What Can We Learn from Fluctuations
Published in Entropy (Basel, Switzerland) (13-07-2017)“…Many kinds of active particles, such as bacteria or active colloids, move in a thermostatted fluid by means of self-propulsion. Energy injected by such a…”
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A comparative study between two models of active cluster crystals
Published in Scientific reports (13-11-2019)“…We study a system of active particles with soft repulsive interactions that lead to an active cluster-crystal phase in two dimensions. We use two different…”
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Charge Transport in Nanochannels: A Molecular Theory
Published in Langmuir (25-09-2012)“…We introduce a theoretical and numerical method to investigate the flow of charged fluid mixtures under extreme confinement. We model the electrolyte solution…”
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Active particles driven by competing spatially dependent self-propulsion and external force
Published in SciPost physics (01-09-2022)“…We investigate how the competing presence of a nonuniform motility landscape and an external confining field affects the properties of active particles. We…”
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Electro-osmotic flow in coated nanocapillaries: a theoretical investigation
Published in Physical chemistry chemical physics : PCCP (01-01-2014)“…Motivated by recent experiments, we present a theoretical investigation of how the electro-osmotic flow occurring in a capillary is modified when its charged…”
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Effective electrodiffusion equation for non-uniform nanochannels
Published in The Journal of chemical physics (28-06-2013)“…We derive a one-dimensional formulation of the Planck-Nernst-Poisson equation to describe the dynamics of a symmetric binary electrolyte in channels whose…”
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9
Hydrodynamics of simple active liquids: the emergence of velocity correlations
Published in New journal of physics (01-10-2021)“…We derive the hydrodynamics for a system of N active, spherical, underdamped particles, interacting through conservative forces. At the microscopic level, we…”
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10
Multidimensional stationary probability distribution for interacting active particles
Published in Scientific reports (29-05-2015)“…We derive the stationary probability distribution for a non-equilibrium system composed by an arbitrary number of degrees of freedom that are subject to…”
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11
Hidden velocity ordering in dense suspensions of self-propelled disks
Published in Physical review research (11-06-2020)“…Recent investigations of the phase diagram of spherical, purely repulsive, active particles established the existence of a transition from a liquidlike to a…”
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12
Fluctuation–dissipation: Response theory in statistical physics
Published in Physics reports (01-06-2008)“…General aspects of the Fluctuation–Dissipation Relation (FDR), and Response Theory are considered. After analyzing the conceptual and historical relevance of…”
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Time-dependent properties of interacting active matter: Dynamical behavior of one-dimensional systems of self-propelled particles
Published in Physical review research (29-09-2020)“…We study an interacting high-density one-dimensional system of self-propelled particles described by the active Ornstein-Uhlenbeck particle model where, even…”
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14
Electrokinetic Lattice Boltzmann Solver Coupled to Molecular Dynamics: Application to Polymer Translocation
Published in Langmuir (24-10-2017)“…We have developed a theoretical and computational approach to deal with systems that involve a disparate range of spatiotemporal scales, such as those composed…”
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15
Fiber–Sample Distance, An Important Parameter To Be Considered in Headspace Solid-Phase Microextraction Applications
Published in Analytical chemistry (Washington) (02-06-2020)“…To define and control the parameters which impact headspace solid-phase microextraction (HS-SPME), it is important to reach the highest level of…”
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16
Frequency-control of protein translocation across an oscillating nanopore
Published in Physical chemistry chemical physics : PCCP (10-05-2017)“…The translocation of a lipid binding protein (LBP) is studied using a phenomenological coarse-grained computational model that simplifies both chain and pore…”
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17
Bistable clustering in driven granular mixtures
Published in Physica A (01-03-2005)“…The behavior of a bidisperse inelastic gas vertically shaken in a compartmentalized container is investigated using two different approaches: the first is a…”
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18
Lattice Boltzmann method for mixtures at variable Schmidt number
Published in The Journal of chemical physics (07-07-2014)“…When simulating multicomponent mixtures via the Lattice Boltzmann Method, it is desirable to control the mutual diffusivity between species while maintaining…”
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19
A Statistical Model for Translocation of Structured Polypeptide Chains through Nanopores
Published in The journal of physical chemistry. B (30-07-2009)“…The translocation process of a globular protein (ubiquitin) across a cylindrical nanopore is studied via molecular dynamics simulations. The ubiquitin is…”
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Modulation of current through a nanopore induced by a charged globule: Implications for DNA-docking
Published in Europhysics letters (01-11-2014)“…The passage of DNA through a nanopore can be effectively decomposed into two distinct phases, docking and actual translocation. In experiments each phase is…”
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