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We study the effects of thickness on the ground states of two-dimensional quantum dots in high magnetic fields. To be specific, we assume the thickness to be small so that only the lowest state in the corresponding direction is occupied,…

介观与纳米尺度物理 · 物理学 2009-02-03 E. Tölö , A. Harju

An analysis of a variety of existing experimental data leads to the conclusion on the existence of a resonance mechanism allowing weak magnetic fields to affect biological processes. These fields may either be static magnetic fields…

生物物理 · 物理学 2009-04-08 Zakirjon Kanokov , Juern W. P. Schmelzer , Avazbek K. Nasirov

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

Two counter-propagating cool and equally dense electron beams are modelled with particle-in-cell (PIC) simulations. The electron beam filamentation instability is examined in one spatial dimension. The box length resolves one pair of…

等离子体物理 · 物理学 2008-10-30 M E Dieckmann , G Rowlands , I Kourakis , M Borghesi

A theory of a lateral stress relaxation in a fluid bilayer membrane under a step-like pressure pulse is proposed. It is shown theoretically that transfer of lipid molecules into a strained region may lead to a substantial decrease of the…

软凝聚态物质 · 物理学 2007-05-23 S. I. Mukhin , S. V. Baoukina

We study water between parallel metal walls under applied electric field accounting for the image effect at $T=298$ K. The electric field due to the surface charges serves to attract and orient nearby water molecules, while it tends to a…

软凝聚态物质 · 物理学 2015-07-24 Kyohei Takae , Akira Onuki

The interfacial nature of the electric double layer (EDL) assumes that electrode surface morphology significantly impacts the EDL properties. Since molecular-scale roughness modifies the structure of EDL, it is expected to disturb the…

化学物理 · 物理学 2024-02-09 Irina Nesterova , Aleksey Khlyupin , Nikolay Evstigneev , Oleg Ryabkov , Kirill M. Gerke

Simulating protein-membrane interactions is an important and dynamic area of research. A proper definition of electrostatic forces on membrane surfaces is necessary for developing electromechanical models of protein-membrane interactions.…

偏微分方程分析 · 数学 2013-09-24 Michael Mikucki , Y. C. Zhou

The electric-field noise above a layered structure composed of a planar metal electrode covered by a thin dielectric is evaluated and it is found that the dielectric film considerably increases the noise level, in proportion to its…

材料科学 · 物理学 2021-08-06 Muir Kumph , Carsten Henkel , Peter Rabl , Michael Brownnutt , Rainer Blatt

We present numerical simulations of driven magnetohydrodynamic (MHD) turbulence with weak/moderate imposed magnetic fields. The main goal is to clarify dynamics of magnetic field growth. We also investigate the effects of the imposed…

天体物理学 · 物理学 2011-02-11 J. Cho , E. Vishniac , A. Beresnyak , A. Lazarian , D. Ryu

Considering effects of electric field on the low temperature absorption line of quantum well excitons, we show that, for moderate strength of the electric field, the main contribution to the field dependence of the line-width results from…

无序系统与神经网络 · 物理学 2007-05-23 I. V. Ponomarev , L. I. Deych , A. A. Lisyansky

Microswimmers and active colloids often move in confined systems, including those involving interfaces. Such interfaces, especially at the microscale, may deform in response to the stresses of the flow created by the active particle. We…

软凝聚态物质 · 物理学 2026-01-14 Adam Hitin Bialus , Bhargav Rallabandi , Naomi Oppenheimer

We study a model of a lipid bilayer membrane described by two order parameters: the chemical composition described using the Gaussian model and the spatial configuration described with the elastic deformation model of a membrane with a…

软凝聚态物质 · 物理学 2022-06-08 Piotr Nowakowski , Bernd Henning Stumpf , Ana-Sunčana Smith , Anna Maciołek

Hydrodynamic behavior at the vicinity of a confining wall is closely related to the friction properties of the liquid/solid interface. Here we consider, using Molecular Dynamics simulations, the electric contribution to friction for charged…

软凝聚态物质 · 物理学 2009-11-11 Laurent Joly , Christophe Ybert , Emmanuel Trizac , Lyderic Bocquet

Transient electric fields across cell bilayer membranes can lead to electroporation, as well as to cell fusion, and have been extensively studied. We find that transmembrane electric fields similar to those in cells can lead to a massive,…

材料科学 · 物理学 2023-06-27 Yu Zhang , Di Jin , Ran Tivony , Nir Kampf , Jacob Klein

The mechanical and electronic properties of a graphene membrane placed on top of a superlattice of nanopillars are investigated. We use molecular dynamics (MD) simulations to access the deformation fields and the tight-binding approaches to…

介观与纳米尺度物理 · 物理学 2019-02-20 S. P. Milovanovic , L. Covaci , F. M. Peeters

We study the equilibrium conformations of a lipid domain on a planar fluid membrane where the domain is decorated by a vector field representing the tilt of the stiff fatty acid chains of the lipid molecules, while the surrounding membrane…

软凝聚态物质 · 物理学 2009-11-07 R. C Sarasij , Madan Rao

Mean-field electrostatics is used to calculate the bending moduli of an electric double layer for fixed surface charge density of a macroion in a symmetric 1:1 electrolyte. The resulting expressions for bending stiffness, Gaussian modulus,…

软凝聚态物质 · 物理学 2018-08-06 Guilherme Volpe Bossa , Bjorn K. Berntson , Sylvio May

The work deals with the experimental study of the emulsion whose dispersion medium is a magnetic fluid while the disperse phase is formed by a glycerin-water mixture. It is demonstrated that under effect of a magnetic field chain aggregates…

软凝聚态物质 · 物理学 2014-02-06 Arthur Zakinyan , Yuri Dikansky , Marita Bedzhanyan

Based on extensive first principle calculations, we explore the thickness dependent effective di- electric constant and slab polarizability of few layer black phosphorene. We find that the dielectric constant in ultra-thin phosphorene is…

介观与纳米尺度物理 · 物理学 2016-06-08 Piyush Kumar , B. S. Bhadoria , Sanjay Kumar , Somnath Bhowmick , Yogesh Singh Chauhan , Amit Agarwal