Results 11 to 20 of about 1,302,155 (229)

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

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

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

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

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

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

Experimental limits of ghost diffraction: Popper’s thought experiment [PDF]

open access: yes, 2018
Quantum ghost diffraction harnesses quantum correlations to record diffraction or interference features using photons that have never interacted with the diffractive element. By designing an optical system in which the diffraction pattern can be produced
Aspden, Reuben S.   +7 more
core   +2 more sources

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

Factorization in hard diffraction [PDF]

open access: yes, 2001
In this talk, I reviewed the role of factorization in diffraction hard scattering.Comment: Talk presented at the Ringberg Workshop on ``New Trends in HERA Physics 2001''. 10 pages, 6 postscript figures.
Adloff C [H1 Collaboration]   +6 more
core   +4 more sources

Chemical, isotopic and gas composition of the first-year sea ice in 2013-2015 from the data of cores taken at the BARNEO drifting stations

open access: yesЛëд и снег, 2019
As a result of the work performed at the BARNEO drifting stations (2013-2015 in the polar region of the Arctic ocean), a comprehensive testing was carried out and new data were obtained on the structure of one-year sea ice, its salinity, the distribution
A. I. Kizyakov   +4 more
doaj   +1 more source

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