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Single-electron pumps based on isolated impurity atoms have recently been experimentally demonstrated. In these devices the Coulomb potential of an atom creates a localised electron state with a large charging energy and considerable…

介观与纳米尺度物理 · 物理学 2017-03-21 J. van der Heijden , G. C. Tettamanzi , S. Rogge

Interactions between fluids and elastic solids are ubiquitous in application ranging from aeronautical and civil engineering to physiological flows. Here we study the pulsatile flow through a two-dimensional Starling resistor as a simple…

流体动力学 · 物理学 2021-01-15 Duo Xu , Matthias Heil , Thomas Seeböck , Marc Avila

The particle inertial effects on turbulence modulation in particle-laden channel flow are investigated through four-way coupled point-particle direct numerical simulations, with the mass loading fixed at $0.6$ and friction Stokes number…

流体动力学 · 物理学 2025-01-28 Zi-Mo Liao , Feng-Hui Lin , Luoqin Liu , Nan-Sheng Liu , Xi-Yun Lu

We report a new type of fluid-based driven dissipative oscillator system consisting of a lattice of millimetric fluid droplets bouncing on a vertically vibrating liquid bath and bound within an annular ring. We characterize the system…

软凝聚态物质 · 物理学 2020-10-27 Stuart J. Thomson , Miles M. P. Couchman , John W. M. Bush

Molecular dynamics simulations are a powerful tool to study diffusion processes in battery electrolyte and electrode materials. From a single molecular dynamics simulation many properties relevant to diffusion can be obtained, including the…

化学物理 · 物理学 2018-07-09 Niek J. J. de Klerk , Eveline van der Maas , Marnix Wagemaker

We derive a continuum-level plasticity model for polycrystalline materials in the high energy density regime, based on a single dislocation density and single mobility mechanism, with an evolution model for the dislocation density. The…

We investigate the behavior of colloidal suspensions with different volume fractions confined between parallel walls under a range of steady shears. We model the particles using molecular dynamics (MD) with full hydrodynamic interactions…

软凝聚态物质 · 物理学 2014-09-18 Frances E. Mackay , Kyle Pastor , Mikko Karttunen , Colin Denniston

Living cells employ excitable reaction-diffusion waves for internal cellular functions, in which curvature-inducing proteins are often involved. However, the role of their mechanochemical coupling is not well understood. Here, we report the…

软凝聚态物质 · 物理学 2022-08-09 Naoki Tamemoto , Hiroshi Noguchi

We analyze motility-induced phase separation and bubbly phase separation in a two-dimensional lattice model of self-propelled particles. We compare systems where the dense (liquid) phase has slab and droplet geometries. We find that…

软凝聚态物质 · 物理学 2025-03-18 Liheng Yao , Robert L. Jack

We report experimental measurements of particle dynamics on slowly sheared granular matter in a three-dimensional (3D) Couette cell. A closely-packed ensemble of transparent spherical beads is confined by an external pressure and filled…

软凝聚态物质 · 物理学 2009-11-13 Ping Wang , Chaoming Song , Christopher Briscoe , Hernan A. Makse

Ejectors are used in various engineering systems, including steam and vapor compression cycles. Optimizing the performance of ejectors requires understanding and analysis of multiphase and turbulent flow structures associated with their…

流体动力学 · 物理学 2025-08-12 Sreetam Bhaduri , Ivan C. Christov , Eckhard A. Groll , Davide Ziviani

We investigate the dynamics of a single, overdamped colloidal particle, which is driven by a constant force through a one-dimensional periodic potential. We focus on systems with large barrier heights where the lowest-order cumulants of the…

统计力学 · 物理学 2016-05-30 Clive Emary , Robert Gernert , Sabine H. L. Klapp

This paper presents an experimental investigation on pattern formation and evolution in bilayered tubular organs using swelling deformation of polydimethylsiloxane (PDMS) and aims at supplying a thorough comparison with theoretical and…

软凝聚态物质 · 物理学 2022-02-15 Rui-Cheng Liu , Lishuai Jin , Zongxi Cai , Yang Liu

Essentially all biology is active and dynamic. Biological entities autonomously sense, com- pute, and respond using energy-coupled ratchets that can produce force and do work. The cytoskeleton, along with its associated proteins and motors,…

软凝聚态物质 · 物理学 2017-03-28 Kasimira T. Stanhope , Vikrant Yadav , Christian D. Santangelo , Jennifer L. Ross

A flexible membrane deforming its shape in time can self-propel in a viscous fluid. Alternatively, if the membrane is anchored, its deformation will lead to fluid transport. Past work in this area focused on situations where the deformation…

软凝聚态物质 · 物理学 2013-02-12 Arthur A. Evans , Eric Lauga

Determining the nature of surface roughness and electrode pore structure on H2 bubble evolution rate and quantity, and bubble trapping under electrolytic conditions is important for quantifying useful gas production during total water…

材料科学 · 物理学 2025-12-19 Matthew Ferguson , Alex Lonergan , Christopher Kent , Dara Fitzpatrick , Colm O'Dwyer

A time-dependent approach is used to explore inelastic effects during electron transport through few-level systems. We study a tight-binding chain with one and two sites connected to vibrations. This simple but transparent model gives…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Monturet , N. Lorente

The ability of liquid interfaces to shape slender elastic structures provides powerful strategies to control the architecture of mechanical self assemblies. However, elastocapillarity-driven intelligent design remains unexplored in more…

Medical therapy for patients with severe heart disease often relies on left ventricular assist devices (LVADs). It is an ongoing topic of research how complications like stagnation and thrombosis can be prevented by using artificial…

流体动力学 · 物理学 2025-03-31 Maximilian R. Schuster , Nico Dirkes , Fabian Key , Stefanie Elgeti , Marek Behr

Mechanical characteristics of single biological cells are used to identify and possibly leverage interesting differences among cells or cell populations. Fluidity---hysteresivity normalized to the extremes of an elastic solid or a viscous…

细胞行为 · 定量生物学 2013-10-22 John M. Maloney , Eric Lehnhardt , Alexandra F. Long , Krystyn J. Van Vliet