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In this letter, the leakage radiation microscopy (LRM) is extended into characterization of planar waveguide modes (WMs) rather than surface plasmon polaritons (SPPs) taking advantages of the coupling between WMs and fluorescence emission.…

光学 · 物理学 2011-09-22 Douguo Zhang , Qiang Fu , Xiangxian Wang , Pei Wang , Hai Ming

Effective mixing of fluids at the microfluidic scale is important for future applications in biology, medicine, and chemistry. A promising type of micromixers are magnetic filaments, which can be activated by an external magnetic field.…

Near-surface flows measured by the ring-diagram technique of local helioseismology show structures that persist over multiple rotations. We examine these phenomena using data from the {\em Global Oscillation Network Group} (GONG) and the…

太阳与恒星天体物理 · 物理学 2015-08-19 R. Howe , R. W. Komm , D. Baker , L. Harra , L. van Driel-Gesztelyi , R. S. Bogart

We present Magnetic Resonance Force Microscopy (MRFM) measurements of Ferromagnetic Resonance (FMR) in a 50 nm thick permalloy film, tilted with respect to the direction of the external magnetic field. At small probe-sample distances the…

The paper presents a dynamic solution method for dynamic minimum parametric networks flow. The solution method solves the problem for a special parametric dynamic network with linear lower bound functions of a single parameter. Instead…

离散数学 · 计算机科学 2015-09-15 Mircea Parpalea , Nicoleta Avesalon , Eleonor Ciurea

We propose a unified approach to the formal long-wave reduction of several fluid models for thin-layer incompressible homogeneous flows driven by a constant external force like gravity. The procedure is based on a mathematical coherence…

数值分析 · 数学 2013-06-17 François Bouchut , Sébastien Boyaval

Here we apply nanomechanical resonators to the study of oscillatory fluid dynamics. A high-resonance-frequency nanomechanical resonator generates a rapidly oscillating flow in a surrounding gaseous environment; the nature of the flow is…

其他凝聚态物理 · 物理学 2009-11-13 D. M. Karabacak , V. Yakhot , K. L. Ekinci

We study recent observations of propagating fluctuations in a prominence foot with Hinode Solar Optical Telescope (SOT) high-resolution observations in Ca~II and H alpha emission which we identify as nonlinear fast magnetosnic waves. Here…

太阳与恒星天体物理 · 物理学 2020-08-26 Leon Ofman , Therese A. Kucera

We theoretically and numerically investigate the steady flow of two-dimensional granular materials in a rotating drum using the discrete element method and a continuum model with the $\mu(I)$-rheology. The velocity fields obtained from both…

软凝聚态物质 · 物理学 2026-02-10 Hiroki Oba , Michio Otsuki

A novel approach for automated high throughput NMR spectroscopy with improved mass-sensitivity is accomplished by integrating microfluidic technologies and micro-NMR resonators. A flow system is utilized to transport a sample of interest…

仪器与探测器 · 物理学 2021-04-20 Omar Nassar , Mazin Jouda , Michael Rapp , Dario Mager , Jan G. Korvink , Neil MacKinnon

Efficient and safe drilling operations require precise determination of rheological properties in drilling fluids, encompassing dynamic viscosity for Newtonian fluids, and apparent viscosity, plastic viscosity, and yield point for…

流体动力学 · 物理学 2023-08-15 Sanket Biswas , Harshita Tiwari , Sujata Verma , Kamlesh Kumari

Magneto-mechanical resonators (MMRs) represent a recently proposed type of passive sensor that enables the estimation of its pose as well as sensing other parameters in its environment. The working principle of MMRs entails an excitation of…

We show that the appropriate notion of magnetic field on three-dimensional contact sub-Riemannian manifolds is given by a closed Rumin differential two-form. We introduce horizontal magnetic flows starting from magnetic potential one-forms,…

微分几何 · 数学 2026-01-22 Davide Barilari , Tania Bossio , Valentina Franceschi

In a previous paper, we have reported numerical simulations of the MHD flow driven by a travelling magnetic field (TMF) in an annular channel, at low Reynolds number. It was shown that the stalling of such induction pump is strongly related…

流体动力学 · 物理学 2016-03-23 Paola Rodriguez Imazio , Christophe Gissinger

A novel method is proposed to determine the magnetic moment of a magnet by studying its free-falling motion inside a non-ferromagnetic and conducting pipe. The dynamics of a neodymium magnet falling inside a pipe is tracked by using sound…

物理教育 · 物理学 2026-05-05 Sanjoy Kumar Pal , Soumen Sarkar , Pradipta Panchadhyayee

We present in this article a novel Lagrangian measurement technique: an instrumented particle which continuously transmits the force/acceleration acting on it as it is advected in a flow. We develop signal processing methods to extract…

流体动力学 · 物理学 2015-06-11 Robert Zimmermann , Lionel Fiabane , Yoann Gasteuil , Romain Volk , Jean-François Pinton

Magnetorheological fluids (MR) are stable suspensions of magnetizable microparticles, characterized by the property to change the rheological characteristics when subjected to the action of magnetic field. Together with another class of…

动力系统 · 数学 2015-05-07 Vasile Marinca , Remus-Daniel Ene , Liviu Bereteu

Magnetic nanogels (MNG) -- soft colloids made of polymer matrix with embedded in it magnetic nanoparticles (MNPs) -- are promising magneto-controllable drug carriers. In order to develop this potential, one needs to clearly understand the…

软凝聚态物质 · 物理学 2021-11-11 Ivan S. Novikau , Ekaterina V. Novak , Elena S. Pyanzina , Sofia S. Kantorovich

We conduct a numerical study of the transient phenomenon in pipelines transporting plastic Bingham slurry flows, using a lowest-order finite element method (FEM). While most pipeline hammer studies focus on Newtonian fluids, the transient…

流体动力学 · 物理学 2025-07-28 Felipe Galarce , Francisco Martinez

Mean flow (MeanFlow) enables efficient, high-fidelity image generation, yet its single-function evaluation (1-NFE) generation often cannot yield compelling results. We address this issue by introducing RMFlow, an efficient multimodal…

机器学习 · 计算机科学 2026-02-03 Yuhao Huang , Shih-Hsin Wang , Andrea L. Bertozzi , Bao Wang