Articles with "far field" as a keyword



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Spin‐Controlled Integrated Near‐ and Far‐Field Optical Launcher

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Published in 2018 at "Advanced Functional Materials"

DOI: 10.1002/adfm.201705503

Abstract: • Users may freely distribute the URL that is used to identify this publication. • Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose… read more here.

Keywords: controlled integrated; spin controlled; far field; users may ... See more keywords

Highly Efficient Gradient Solid Immersion Lens with Large Numerical Aperture for Broadband Achromatic Deep Subwavelength Focusing and Magnified Far Field

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202100509

Abstract: Achromatic deep subwavelength lens with large numerical aperture (NA) is in urgent need in several fields, from optical imaging, photolithography, spectroscopy, nanophotonics to microwave engineering and sensing. However, the previous proposed approaches to achieve deep… read more here.

Keywords: subwavelength; magnified far; far field; deep subwavelength ... See more keywords

Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix

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Published in 2024 at "Advanced Optical Materials"

DOI: 10.1002/adom.202402704

Abstract: Chiral plasmonic nanoantennas exhibit unique chiroptical properties in both the near‐field and far‐field, offering exciting opportunities for applications in chiroptical sensing, circularly polarized luminescence, and quantum communication. Recent advances in chiral plasmonics have facilitated the… read more here.

Keywords: field; far field; mode dependent; single plasmonic ... See more keywords

Experimental study on the use of the ARM Cortex M7 processor for measuring far-field blast waves

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Published in 2024 at "Shock Waves"

DOI: 10.1007/s00193-023-01154-1

Abstract: The ongoing study of blast waves and blast wave mitigation continues to play an essential role in protecting structures and personnel. The methodology, however, for capturing far-field blast waves in large-scale tests has remained largely… read more here.

Keywords: system; far field; blast; blast waves ... See more keywords

Effect of moving resonance on the seismic responses under far-field and near-field earthquakes

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Published in 2020 at "Asian Journal of Civil Engineering"

DOI: 10.1007/s42107-020-00305-4

Abstract: The variation of the earthquake frequency content, which is known as spectral non-stationarity, is a feature of earthquakes that leads to different structural responses. The moving resonance phenomenon takes place when the ground vibration frequency… read more here.

Keywords: far field; field; near field; moving resonance ... See more keywords

Assessment of the potential for criticality in the far field of a used nuclear fuel repository

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Published in 2019 at "Annals of Nuclear Energy"

DOI: 10.1016/j.anucene.2018.09.028

Abstract: Abstract This study aims to assess the likelihood for criticality in the far field of a repository for direct disposal of commercial light water reactor used nuclear fuel. Two models are used in combination: (1)… read more here.

Keywords: far field; criticality far; fuel; nuclear fuel ... See more keywords

Phase offset mechanism on far-field radiation from multi-piston line sources and near-field acoustic energy density flux

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Published in 2020 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2019.107001

Abstract: Abstract Considering the relationship between the far-field radiation and the outflow of acoustic energy over the radiation surface, phase offset mechanism (POM) is proposed and analyzed in this paper. POM aims at controlling acoustic radiation… read more here.

Keywords: far field; acoustic energy; field; radiation ... See more keywords
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On near- and far-field acoustic radiation characteristics of ships in finite-depth water environment

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Published in 2021 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2020.107644

Abstract: Abstract A simplified calculation model is established to evaluate the acoustic radiation of the single-shell underwater ship structure considering typical ship mechanical excitation. The three-dimensional sono-elastic method of ships in Pekeris ocean-acoustic waveguide environment is… read more here.

Keywords: far field; ship; field; field acoustic ... See more keywords
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Investigation on flash boiling spray fluctuations in the near-field and far-field under gasoline direct injection related conditions

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Published in 2020 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2020.115655

Abstract: Abstract Flash boiling spray has been considered as a promising atomization scheme in improving fuel-air mixture and reduce spray impingement in internal combustion engine applications. Because of its distinctive breakup mechanism, the thermal process of… read more here.

Keywords: boiling spray; far field; field; near field ... See more keywords
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Near and far field laminar flow structures in an axisymmetric zero-net-mass-flux jet

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Published in 2020 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2020.105920

Abstract: Abstract Numerical simulations have been performed to study the near and far fields of an axisymmetric zero-net-mass flux (ZNMF) jet in the laminar-transitional regime, before the three-dimensional vortex breakdown that promotes transition to turbulence. The… read more here.

Keywords: far field; field; jet; zero net ... See more keywords

Far-field contributions in multi-electrodes atrial recordings blur distinction between anatomical and functional reentries and may cause imaginary phase singularities - A computational study

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Published in 2019 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2019.02.022

Abstract: BACKGROUND Atrial fibrillation (AF) is the most common cardiac arrhythmia and the most important cause of embolic stroke, requiring new technologies for its better understanding and therapies. Recent approaches to map the electrical activity during… read more here.

Keywords: far field; blur distinction; field; model ... See more keywords