Results 1 to 10 of about 6,926 (140)

Measuring Respirable Crystalline Silica (Quartz) from Powdery Materials through Sedimentation and X-ray Diffractometry. [PDF]

Toxics
When possible, choosing materials with a low quartz content is the most effective and cost-efficient way to prevent the respirable quartz exposure of workers and other end users of powdery products. Therefore, methods are needed to analyze low amounts of
Tuomi T, Lyyränen J.
europepmc   +2 more sources

Influence of local surface plasmon resonance on behavior of polymer-stabilized bimetallic nanoparticles in Suzuki cross-coupling reaction [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
This paper is devoted to investigation of the effect of light in the visible spectral range on the activity of mono- (Au, Pd) and bimetallic (Au−Pd) catalysts.
N.A. Nemygina, E.S. Bahvalova, E.V. Buchma, I.S. Smirnov, L.Zh. Nikoshvili, E.M. Sulman   +5 more
doaj   +1 more source

32-Channel silicon strip detection module for combined X-ray fluorescence spectroscopy and X-ray diffractometry analysis

Frontiers in Physics, 2022
A compact detection module for the simultaneous measurement of XRF and XRD in portable analytical applications, in particular in the mining sector, is presented.
Marco Carminati, Marco Carminati, Giacomo Borghi, Evgeny Demenev, Matteo Gugiatti, Matteo Gugiatti, Giancarlo Pepponi, Michele Crivellari, Francesco Ficorella, Sabina Ronchin, Nicola Zorzi, Evgeny Borovin, Luca Lutterotti, Carlo Fiorini, Carlo Fiorini   +14 more
doaj   +1 more source

Modeling of Bohemian and Moravian glass recipes from Gothic to Baroque periods

Heritage Science, 2020
The Bohemian historical glasses have been neglected and have not been in focus of Archaeometric studies so far. Potassium-calcium wood ash glasses, produced in Bohemia and Moravia, from the beginning of the 14th century to the first half of the 18th ...
Karolína Pánová, Dana Rohanová, Simona Randáková   +2 more
doaj   +1 more source

Stabilization of hercynite structure at elevated temperatures by Mg substitution

Materials & Design, 2023
Hercynite, FeAl2O4, is a spinel applied in various fields, including refractory materials or H2 production. FeAl2O4 is unstable at elevated temperatures of 1000 °C in air, decomposing into different forms of alumina and iron oxides. In this work, we show
Ilona Jastrzębska, Joanna Stępień, Jan Żukrowski   +2 more
doaj   +1 more source

Understanding Nickel Thin Film crystallization using X-Ray Diffractometry

Journal of Applied Sciences and Environmental Management, 2010
Normal, helical and zigzag deposited Ni films were produced by letting a vapour stream of source material impinge on Corning 1737 glass substrates at oblique incidence while rotating the substrate during deposition.
T Otiti, GI Ekosse, TS Sathiaraj
doaj   +1 more source

Facile and Direct Preparation of Ultrastable Mesoporous Silica with Silver Nanoclusters: High Surface Area

ChemistryOpen, 2020
We report the successful direct synthesis of an ultrastable mesoporous silicon dioxide framework containing silver nanoclusters using a modified true liquid crystal templating method.
Dr. Tariq Aqeel, Prof. Ali Bumajdad
doaj   +1 more source

Structural Studies of Aluminated form of Zeolites—EXAFS and XRD Experiment, STEM Micrography, and DFT Modelling

Molecules, 2021
In this article, the results of computational structural studies on Al-containing zeolites, via periodic DFT + D modelling and FDM (Finite Difference Method) to solve the Schrödinger equation (FDMNES) for XAS simulations, corroborated by EXAFS (Extended ...
Gabriela Jajko, Paweł Kozyra, Maciej Strzempek, Paulina Indyka, Marcin Zając, Stefan Witkowski, Witold Piskorz   +6 more
doaj   +1 more source

Swelling and Salt Formation in Ibuprofen and Tranexamic Acid-Containing Tablets during High-Temperature Storage

Crystals, 2022
Ibuprofen (IBP)- and Tranexamic acid (TXA)-containing tablets are known to swell when stored at high temperatures, but the mechanism of swelling is unknown.
Yuto Kawano, Yoshiharu Tanaka, Nanami Hata, Yuki Yoshiike, Masato Nakajima, Etsuo Yonemochi, Nobuhiro Ishihara   +6 more
doaj   +1 more source

Kinetic and structural aspects of tantalum hydride formation [PDF]

Journal of the Serbian Chemical Society, 2003
Tantalum hydrides of various composition were synthesized by equilibrating tantalum with hydrogen at six different temperatures from 573 to 823 K under a constant hydrogen pressure of 1 bar.
Simonović B.R., Mentus Slavko V., Dimitrijević Radovan Ž.   +2 more
doaj   +3 more sources