Results 21 to 30 of about 65,927 (307)
Circularly polarised antenna withswitchable polarisation sense
Electronics Letters, 2000 The authors present the design of a wideband circularly polarised antenna with switchable polarisation sense. The basic antenna is a circularly polarised aperture coupled patch antenna with a slot excitation located along the diagonal of a rectangular patch.
Boti, M. +2 more
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Justicia, medios de comunicación y polarización política. El caso Colombiano
Trayectorias Humanas Trascontinentales, 2020 Luego de un tortuoso proceso de paz que terminó con una confrontación armada con la guerrilla Farc-EP-, una vez firmado el acuerdo en septiembre de 2016, se desencadenaron posturas álgidas que derivaron en tensiones de diversa índole (las que hasta hoy ...
Freddy Galeano
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Conflict and polarisation on social media caused by the Russia-Ukraine War: The case of Ekşi Sözlük
Connectist Istanbul University Journal of Communication Sciences, 2023 There has been an increase in ideological and political polarisation in Türkiye. Society is divided into dichotomies such as modern-traditional, religious-secular, right-left, Turkish-Kurdish, and Sunni-Alawi; the distinction is not limited to these. The
Tolga Gürocak
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Nature, 1873 Reprinted 1895. ; Series title also at head of t.-p. ; Mode of access: Internet.
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Reflections on Emotions, Populism and Polarisation : HEPP2 Conference Proceedings [PDF]
, 2021 This volume hosts fifteen papers that bring together theoretical, case-based and thematic perspectives on populism, polarisation and emotions. It features proposals for theoretical and methodological innovations, as well as national and ...
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Insect ventral radar cross-section polarisation dependence measurements for radar entomology [PDF]
, 2006 Radar entomology has developed such that routine long-term monitoring of insect flight through the atmospheric boundary layer is now practical. Typical entomological radars use X-band (9.4 GHz) marine transceivers with a vertical pencil beam and rotate ...
Aldhous, Anthony C., Hobbs, Stephen
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Economic convergence and polarisation: towards a multi-dimensional approach
Hungarian Geographical Bulletin, 2015 The current increase of regional inequalities in Europe, and in particular in Central and Eastern Europe (CEE) has led to the reconsideration and revival of the concepts of "polarisation" and "convergence" in academic fields like regional economics ...
József Benedek, Aura Moldovan
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Nanophotonics, 2023 The mostly theoretical viewpoint, in which light is understood in terms of its singularities – caustics, phase vortices and lines of circular and linear polarisation – was developed in Bristol in the 1970s and 1980s.
Berry Michael
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SU(2) symmetry of coherent photons and application to Poincaré rotator
Frontiers in Physics, 2023 Lie algebra is a hidden mathematical structure behind various quantum systems realised in nature. Here, we consider SU(2) wavefunctions for polarisation states of coherent photons emitted from a laser source, and discuss the relationship to spin ...
Shinichi Saito
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Fibre-optic polarisers and polarising couplers
Electronics Letters, 1988 The dispersion equation describing the planar waveguiding properties of a thin metal film sandwiched between two dielectrics was used to predict the conditions for polarisation selective coupling from an optical fibre to surface plasmon polaritons. The conditions predicted by the analysis and those found by experiment were in close agreement and the ...
W. Johnstone +3 more
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