Results 71 to 80 of about 1,574,642 (220)

Provenance Illusions and Elusive Paradata: When Archaeology and Art/Archaeological Practice Meets the Phygital

Open Archaeology, 2021
In this art/archaeological study, we question the utility of the interrelated concepts of provenance, provenience, and paradata as applied to assemblages in art, archaeology, and cultural heritage contexts.
Reilly Paul, Callery Simon, Dawson Ian, Gant Stefan   +3 more
doaj   +1 more source

Electromagnetic diffraction efficiencies for plane reflection diffraction gratings [PDF]

The theory and computer programs, based on electromagnetic theory, for the analysis and design of echelle gratings were developed. The gratings are designed for instruments that operate in the ultraviolet portion of the spectrum. The theory was developed
Marathay, A. S., Shrode, T. E.
core   +4 more sources

A DIFFRACTIVE TRANSVERSAL FRAMEWORK: CRAFTING CARTOGRAPHIES OF PEDAGOGICAL ENCOUNTERS WITH A POSTHUMAN TEACHERBOT

Digital Culture & Education, 2023
Cartography as a posthuman method cultivates the creative and critical mapping of relational encounters between human, non-human and material entities.
Patricia Gibson
doaj  

Nuclear Shadowing and Diffraction

, 2004
The relation between diffraction in lepton-proton collisions and shadowing of nuclear structure functions which arises from Gribov inelastic shadowing, is described.
Albacete, J. L., Armesto, N., Capella, A., Kaidalov, A. B., Salgado, C. A.   +4 more
core   +2 more sources

Rare Earth Doped Ceria: The Complex Connection Between Structure and Properties

Frontiers in Chemistry, 2018
The need for high efficiency energy production, conversion, storage and transport is serving as a robust guide for the development of new materials.
Mauro Coduri, Stefano Checchia, Mariangela Longhi, Davide Ceresoli, Marco Scavini   +4 more
doaj   +1 more source

Atomic diffraction in counter-propagating Gaussian pulses of laser light

, 2007
We present an analysis of atomic diffraction due to the interaction of an atomic beam with a pair of Gaussian light pulses. We derive a simple analytical expression for the populations in different diffraction orders.
Atom Muradyan, Klaus Mølmer, Tapio P. Simula, V. M. Arutunyan   +3 more
core   +1 more source

Characterization of vector diffraction-free beams

, 2011
It is observed that a constant unit vector denoted by $\mathbf I$ is needed to characterize a complete orthonormal set of vector diffraction-free beams. The previously found diffraction-free beams are shown to be included as special cases. The $\mathbf I$
Bouchal, Chun-Fang Li, Davis, Davis, Durnin, Durnin, Hall, Jordan, Lax, Li, Shuang-Yan Yang, Ting-Ting Wang, van Enk, Youngworth, Zapata-Rodríguez   +14 more
core   +1 more source

Processamento de imagens: conceitos básicos relacionados com o fenômeno de difração e uso de um computador óptico

Revista Brasileira de Ensino de Física
O fenômeno de difração é utilizado em um experimento relacionado à óptica de Fourier com o objetivo de estudar conceitos básicos de processamento de imagens.
N. Carlin, E.M. Szanto, W.A. Seale, F.O. Jorge, F.A. Souza, I.H. Bechtold, L.R. Gasques   +6 more
doaj   +1 more source

Dual Abruptly Focus of Modulated Circular Airy Beams

IEEE Photonics Journal, 2017
In this paper, we propose a new kind of circular Airy beam whose spectrum is imposed an initial quadratic phase modulation (QPM). Unlike common abruptly autofocusing beams, we find that such modulated circular Airy beams (MCAB) at image plane, i.e ...
Jinggui Zhang, Jun He
doaj   +1 more source

Motives from Diffraction

, 2005
We look at geometrical and arithmetical patterns created from a finite subset of Z^n by diffracting waves and bipartite graphs. We hope that this can make a link between Motives and the Melting Crystals/Dimer models in String Theory.Comment: 19 pages, 1 ...
Stienstra, Jan
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