Results 81 to 90 of about 2,764,686 (330)

The Vortex, Volume One

open access: yes, 1975
This file unit contains the first volume of The Vortex, a student led publication established on the University of Central Arkansas campus in ...
The Vortex Magazine of Literature and Fine Arts; University of Central Arkansas Department of English
core   +1 more source

New model for vortex-induced vibration of catenary riser [PDF]

open access: yes, 2008
This paper presents a new theoretical model capable of predicting the vortex-induced vibration response of a steel catenary riser subject to a steady uniform current.
O'Brien, P.   +2 more
core   +3 more sources

Optical vortices with an infinite number of screw dislocations

open access: yesКомпьютерная оптика, 2021
In optical data transmission with using vortex laser beams, data can be encoded by the topological charge, which is theoretically unlimited. However, the topological charge of a single separate vortex (screw dislocation) is limited by possibilities of ...
A.A. Kovalev
doaj   +1 more source

Dual-band vortex beam generation with different OAM modes using single-layer metasurface.

open access: yesOptics Express, 2019
Recently, considerable attention has been focused on orbital angular momentum (OAM) vortex wave, owing to its prospect of increasing communication capacity. Here, a single-layer metasurface is proposed to realize vortex beams with different OAM modes and
Chen Ji   +4 more
semanticscholar   +1 more source

Vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]

open access: yes, 2010
We investigate the in-line and cross-flow vortex-induced vibrations of a long cylindrical tensioned beam, with length to diameter ratio L/D = 200, placed within a linearly sheared oncoming flow, using three-dimensional direct numerical simulation.
Triantafyllou, Michael S.   +5 more
core   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

Multi-band perfect vortex beam generation using all-dielectric metasurface

open access: yes, 2023
Vortex beams offer a novel avenue for advancing information transmission, storage, and processing within the optical domain. However, conventional optical apparatus and systems depend on the phase accumulation technique to create vortex beams.
Massoud, Yehia Mahmoud   +5 more
core   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Rotational Doppler Effect of Vector Beams

open access: yesPhotonics
The optical rotational Doppler effect occurs when vortex beams are scattered by rotating objects and demonstrate the Doppler frequency shifts in scattered beams, which are associated with the optical angular momentum of vortex beams and the relative ...
Hehe Li, Dong Xu, Xinzhong Li
doaj   +1 more source

Focused vortex-beam generation using gap-surface plasmon metasurfaces

open access: yesNanophotonics, 2019
In spite of a wide range of applications ranging from particle trapping to optical communication, conventional methods to generate vortex beams suffer from bulky configurations and limited performance.
Fei Ding, Yiting Chen, S. Bozhevolnyi
semanticscholar   +1 more source

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