Results 11 to 20 of about 233,826 (182)

Selected indicators of uneven regional development of Serbia [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2006
Expressive territorial unevenness represents the main characteristic of the regional development of Serbia. Spatial differentiation of socio-demographic and economic-functional development is visible at a number of levels development axis - undeveloped ...
Miletić Radmila
doaj   +1 more source

Spin and orbital angular momentum of coherent photons in a waveguide

open access: yesFrontiers in Physics, 2023
Spin angular momentum of a photon corresponds to a polarisation degree of freedom of lights, and such that various polarisation properties are coming from macroscopic manifestation of quantum-mechanical properties of lights.
Shinichi Saito
doaj   +1 more source

Tight focal spots using azimuthally polarised light from a Fresnel cone [PDF]

open access: yes, 2020
When focusing a light beam at high numerical aperture, the resulting electric field profile in the focal plane depends on the transverse polarisation profile, as interference between different parts of the beam needs to be taken into account.
Franke-Arnold, S.   +3 more
core   +2 more sources

Social Work and Digital Activism: Sorority, Intersectionality, Homophily and Polarisation in #MeToo

open access: yesAlternativas, 2021
Introduction. Social Work is currently facing the significant challenge of dealing with social networking sites – which have become a parallel universe of socialisation – in which ever-increasing digital activism is taking place.
Joaquín Castillo de Mesa   +3 more
doaj   +1 more source

The secret world of shrimps: polarisation vision at its best.

open access: yesPLoS ONE, 2008
BackgroundAnimal vision spans a great range of complexity, with systems evolving to detect variations in light intensity, distribution, colour, and polarisation.
Sonja Kleinlogel, Andrew G White
doaj   +1 more source

Special theory of relativity for a graded index fibre

open access: yesFrontiers in Physics, 2023
The speed of light (c) in a vacuum is independent of the choice of frames to describe the propagation, according to the theory of relativity. We consider how light is characterised in a material, where the speed of light is different from that in a ...
Shinichi Saito
doaj   +1 more source

Hyperspectral Molecular Orientation Mapping in Metamaterials

open access: yesApplied Sciences, 2021
The four polarisation method is adopted for measurement of molecular orientation in dielectric nanolayers of metal-insulator-metal (MIM) metamaterials composed of gold nanodisks on polyimide and gold films.
Meguya Ryu   +10 more
doaj   +1 more source

Mid Infrared Polarisation of Ultraluminous Infrared Galaxies [PDF]

open access: yes, 2001
The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO).
A. Efstathiou   +46 more
core   +2 more sources

Electroweak gauge boson polarisation at the LHC [PDF]

open access: yes, 2012
We study the polarisation of gauge bosons produced at the LHC. Polarisation effects for W bosons manifest themselves in the angular distributions of the lepton and in the distributions of lepton transverse momentum and missing transverse energy.
Stirling, W. J., Vryonidou, E.
core   +1 more source

POLARISATION INSENSITIVE HETERODYNE DETECTION USING POLARISATION SCRAMBLING

open access: yesOptical Fiber Communication, 1987
Practical coherent optical fibre transmission systems will have to be insensitive to the random polarisation changes introduced by the birefringent transmission medium and to date the techniques considered for achieving this are polarisation tracking receivers [1] and polarisation diversity receivers [2].
T.G. Hodgkinson, R.A. Harmon, D.W. Smith
openaire   +1 more source

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