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Using electrochemical impedance spectroscopy, we have devised a method of sensing the microscopic surface conditions on the surface of niobium as it is undergoing an electrochemical polishing (EP) treatment. The method uses electrochemical…

材料科学 · 物理学 2025-01-16 Eric Viklund , Vijay Chouhan , Davida Smith , Tim Ring , David N. Seidman , Sam Posen

We develop an analytical theory to explain the experimentally-observed morphological transitions of giant vesicles induced by AC electric fields (1). The model treats the inner and suspending media as lossy dielectrics, while the membrane…

生物物理 · 物理学 2015-05-13 Petia Vlahovska , Ruben Serral Gracia , Said Aranda , Rumiana Dimova

High-fidelity electron microscopy simulations required for quantitative crystal structure refinements face a fundamental challenge: while physical interactions are well-described theoretically, real-world experimental effects are…

For slow-speed ships, underwater vehicles, and pipe transportation systems, viscous resistance accounts for a large proportion of the total energy losses. As such, various technologies have been developed to reduce viscous resistance and…

流体动力学 · 物理学 2025-04-11 Byeong-Cheon Kim , Kyoungsik Chang , Sang-Wook Lee , Jaiyoung Ryu , Minjae Kim , Jaemoon Yoon

We develop a Reduced Order Model (ROM) for a Large Eddy Simulation (LES) approach that combines a three-step algorithm called Evolve-Filter-Relax (EFR) with a computationally efficient finite volume method. The main novelty of our ROM lies…

数值分析 · 数学 2021-07-28 Michele Girfoglio , Annalisa Quaini , Gianluigi Rozza

We study the coupling between the structural dynamics and rheological response of charged colloidal monolayers at water/oil interfaces, driven into steady shear by a microdisk rotating at a controlled angular velocity. The flow causes…

软凝聚态物质 · 物理学 2015-09-14 Ivo Buttinoni , Zachary A. Zell , Todd M. Squires , Lucio Isa

The electric field used in most electrorheological (ER) experiments is usually quite high, and nonlinear ER effects have been theoretically predicted and experimentally measured recently. A direct method of measuring the nonlinear ER…

软凝聚态物质 · 物理学 2007-05-23 Jones T. K. Wan , G. Q. Gu , K. W. Yu

Many patients with advanced cancers undergo multiple lines of treatment. We develop methods for estimating quality-adjusted outcomes and cost-effectiveness of therapy sequences, informed by patient-level longitudinal data from Electronic…

定量方法 · 定量生物学 2024-12-20 Elizabeth A. Handorf , J. Robert Beck , Daniel M. Geynisman

We use time-domain electromagnetic simulations to determine the spectral characteristics of the Hydrogen Epoch of Reionization Arrays (HERA) antenna. These simulations are part of a multi-faceted campaign to determine the effectiveness of…

We use the normal mode formalism to study the shear rheology of the vertex model for epithelial tissue mechanics in the overdamped linear response regime. We consider systems with external (e.g., cell-substrate) and internal (e.g.,…

软凝聚态物质 · 物理学 2023-02-27 Sijie Tong , Rastko Sknepnek , Andrej Kosmrlj

Alfv\'en eigenmodes (AEs) and energetic particle modes (EPMs) are often excited by energetic particles (EPs) in tokamak plasmas. One of the main open questions concerning EP driven instabilities is the non-linear evolution of the mode…

等离子体物理 · 物理学 2016-08-03 L. Horvath , G. Papp , Ph. Lauber , G. Por , A. Gude , V. Igochine , B. Geiger , M. Maraschek , L. Guimarais , V. Nikolaeva , G. I. Pokol

Simulations of the magnetorotational instability (MRI) in a homogeneous shearing box have shown that the asymptotic strength of the magnetic field declines steeply with increasing resolution. Here I model the MRI driven dynamo as a large…

高能天体物理现象 · 物理学 2011-02-11 Ethan T. Vishniac

The present study deals with the dynamics of a double emulsion confined in a microchannel under the presence of a uniform electric field. Towards investigating the non-trivial electrohydrodynamics of a compound droplet, confined in between…

流体动力学 · 物理学 2018-08-14 Somnath Santra , Sayan Das , Suman Chakraborty

Electronic health records (EHRs) are invaluable for clinical research, yet privacy concerns severely restrict data sharing. Synthetic data generation offers a promising solution, but EHRs present unique challenges: they contain both…

机器学习 · 计算机科学 2026-03-26 Shaonan Liu , Yuichiro Iwashita , Soichiro Nakako , Masakazu Iwamura , Koichi Kise

Fluid dynamics plays a crucial role in various multiphysics applications, including energy systems, electronics cooling, and biomedical engineering. Developing models for complex coupled systems can be challenging and time-consuming. In…

计算工程、金融与科学 · 计算机科学 2024-12-09 Markus Lohmayer , Michael Kraus , Sigrid Leyendecker

Direct numerical simulations (DNS) are one of the main ab initio tools to study turbulent flows. However, due to their considerable computational cost, DNS are primarily restricted to canonical flows at moderate Reynolds numbers, in which…

流体动力学 · 物理学 2024-09-17 Arnab Moitro , Sai Sandeep Dammati , Alexei Y. Poludnenko

We present a detailed comparison of the rheological behaviour of sheared sediment beds in a pressure-driven, straight channel configuration based on data that was generated by means of fully coupled, grain-resolved direct numerical…

流体动力学 · 物理学 2021-07-21 B. Vowinckel , E. Biegert , E. Meiburg , P. Aussillous , É. Guazzelli

Harvesting the gain of a large number of antennas in a mmWave band has mainly been relying on the costly operation of channel state information (CSI) acquisition and cumbersome phase shifters. Recent works have started to investigate the…

信息论 · 计算机科学 2016-08-24 Lishuai Jing , Elisabeth De Carvalho , Petar Popovski , Alex Oliveras Martinez

Wearable sensing technology capable of point-of-care, continuous and non-invasive analysis of exosomes in biofluid such as tears and sweat is an essential part for future personalized medicine. Major detection and identification methods of…

介观与纳米尺度物理 · 物理学 2026-05-26 Yang Li , Xiaoming Lyu , Ling Xia , Kuo Zhan , Haoyu Ji , Lei Qin , Seppo J. Vainio , Jian-An Huang

We perform molecular dynamics simulations of homogeneous athermal systems of poly-disperse soft discs under shear. For purely repulsive interactions between particles, and under a confining external pressure, a monotonous flow curve (strain…

软凝聚态物质 · 物理学 2023-10-10 E. A. Jagla