Results 21 to 30 of about 865,228 (219)

Advanced Methods for the Characterization of Supramolecular Hydrogels

open access: yesGels, 2021
With the increased research on supramolecular hydrogels, many spectroscopic, diffraction, microscopic, and rheological techniques have been employed to better understand and characterize the material properties of these hydrogels.
Bridget R. Denzer   +3 more
doaj   +1 more source

Diffraction propagation of vortex diffractals

open access: yesJournal of Physics: Conference Series, 2021
Abstract A brief retrospective analysis of studies of fractal light radiation is carried out. To assess the prospects of this scientific direction, new original results of studying the diffraction propagation of vortex wave beams with a fractal structure (vortex diffractals) are also presented.
P Korolenko   +3 more
openaire   +1 more source

A Method for Reducing Transcendental Dispersion Relations to Nonlinear Ordinary Differential Equations in a Wide Class of Wave Propagation Problems

open access: yesMathematics, 2022
A class of problems of wave propagation in waveguides consisting of one or several layers that are characterized by linear variation of the squared refractive index along the normal to the interfaces between them is considered in this paper.
Andrey Matskovskiy   +2 more
doaj   +1 more source

Characterisation and Study of Compounds by Single Crystal X-ray Diffraction

open access: yesCrystals, 2020
A few years after the discovery in 1895 of X-rays by Röntgen, the first successful experiment single crystal X-ray diffraction (SCXRD) was reported by Laue, Friedrich, and Knipping [...]
Josefina Perles
doaj   +1 more source

Piecewise Linear Weighted Iterative Algorithm for Beam Alignment in Scanning Beam Interference Lithography

open access: yesPhotonic Sensors, 2019
To obtain a good interference fringe contrast and high fidelity, an automated beam iterative alignment is achieved in scanning beam interference lithography (SBIL).
Ying Song   +4 more
doaj   +1 more source

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

open access: yesOpen 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   +3 more
doaj   +1 more source

Factorisation in diffraction [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2010
Recent experimental data on dijet cross sections in diffractive photoproduction at HERA collider were analysed with emphasis on QCD factorisation breaking effects. Dijet photoproduction data of jets with low transverse energy E T1 > 5 GeV indicated a possible dependence on E T of the suppression of jet production with respect to ...
openaire   +4 more sources

Crystal Structure of 17α-Dihydroequilin, C18H22O2, from Synchrotron Powder Diffraction Data and Density Functional Theory

open access: yesCrystals, 2017
The crystal structure of 17α-dihydroequilin has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. 17α-dihydroequilin crystallizes in space group P212121 (#19) with a = 6.76849(1) Å,
James A. Kaduk   +2 more
doaj   +1 more source

Cholesteryl esters of saturated fatty acids: cosolubility and fractionation of binary mixtures

open access: yesJournal of Lipid Research, 1987
Factors affecting the solid state miscibility of saturated chain cholesteryl esters were determined from electron diffraction and differential scanning calorimetric measurements on a homologous series which included two types of crystal packing. Electron
D L Dorset
doaj   +1 more source

The image edge model

open access: yesActa Acustica, 2021
Noise from traffic, industry and neighborhood is a prominent feature in urban environments. In these environments, sound reaches receiver points through reflections and diffractions.
Erraji Armin   +2 more
doaj   +1 more source

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