Results 1 to 10 of about 59,512 (219)

Zinc sulfide restoration from the used television kinescopes and monitors of computers

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
One of the ways of restoration and use of secondary raw materials of waste for the decision both economic and environmental problems is described. Definition of optimum physical and chemical conditions of extraction of sulfide of zinc as secondary ...
Natalia I. Zavgorodnia   +1 more
doaj   +7 more sources

Synthesis and physico-chemical study of systems of co-precipitated Eu/Me hydroxides [PDF]

open access: yesE3S Web of Conferences, 2023
The level of scientific and technical progress is determined in many respects by inorganic materials – phosphors, sorbents, catalysts, aluminates, chromates, ferrite.
Bugaets Olga   +7 more
doaj   +1 more source

Synthesis and Characterization of Heterogeneous Catalysts from Magnetic Sand and Kaolin [PDF]

open access: yesJournal of Chemistry Letters, 2020
In this study, magnetic sand and kaolin obtained from the Nigerian states of Adamawa and Bauchi, respectively, were impregnated and studied for the catalytic property of the hybrid material.
Martins Iji   +3 more
doaj   +1 more source

Hydrothermal Synthesis of Silicoaluminophosphate with AEL Structure Using a Residue of Fluorescent Lamps as Starting Material

open access: yesMolecules, 2021
Silicoaluminophosphate molecular sieves of SAPO-11 type (AEL structure) were synthesized by the hydrothermal method, from the residue of a fluorescent lamp as a source or Si, Al, and P in the presence of water and di-propyamine (DPA) as an organic ...
Gidiângela C. C. S. Lima   +4 more
doaj   +1 more source

The effect of well-characterized, very low-dose x-ray radiation on fibroblasts. [PDF]

open access: yesPLoS ONE, 2018
The purpose of this study is to determine the effects of low-dose radiation on fibroblast cells irradiated by spectrally and dosimetrically well-characterized soft x-rays. To achieve this, a new cell culture x-ray irradiation system was designed.
Katelyn Truong   +9 more
doaj   +1 more source

Multivariate versus traditional quantitative phase analysis of X-ray powder diffraction and fluorescence data of mixtures showing preferred orientation and microabsorption

open access: yesJournal of Applied Crystallography, 2022
In materials and earth science, but also in chemistry, pharmaceutics and engineering, the quantification of elements and crystal phases in solid samples is often essential for a full characterization of materials. The most frequently used techniques for this purpose are X-ray fluorescence (XRF) for elemental analysis and X-ray powder diffraction (XRPD)
Mattia Lopresti   +4 more
openaire   +6 more sources

Deep Chandra Observations of NGC 5728: Morphology and Spectral Properties of the Extended X-Ray Emission

open access: yesThe Astrophysical Journal, 2023
Recent deep Chandra observations of nearby Compton-thick (CT) active galactic nuclei (AGNs) have produced surprising results, uncovering extended emission not only in soft X-rays but also in hard emission (>3 keV), challenging the long-held belief that ...
Anna Trindade Falcao   +4 more
doaj   +1 more source

Technology for processing phosphogypsum into a fluorescent dye based on calcium sulfide

open access: yesТонкие химические технологии, 2022
Objectives. There is considerable economic demand for products obtained by processing phosphogypsum. In particular, calcium sulfide-based materials having luminescent properties are the object of intensive study due to the wide range of possibilities for
O. A. Medennikov, N. P. Shabelskaya
doaj   +1 more source

Hydrothermal synthesis of optically active fluoride particles doped with rare earth ions in the presence of ethylenediaminetetra acetic acid (EDTA) [PDF]

open access: yesTehnika, 2016
Fluorescent nanoparticles have an important role in biological analyzes, and in the last ten years they are successfully applied in a visualization and characterization of biological processes at the cellular and molecular level, as well as, in the ...
Dinić Ivana Z.   +2 more
doaj   +1 more source

Reproducible, self-healable polyurethane composite networks with high toughness, florescence and water-insensitivity

open access: yesJournal of Science: Advanced Materials and Devices, 2023
For self-healing polymers, the poor elastic properties and low self-healing efficiency have limited their applications, and smart polymer systems adaptable to the complex environment have become a hot topic. To address this issue, in this study, a series
Xiyang Zeng   +7 more
doaj   +1 more source

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