Results 101 to 110 of about 140,284 (297)

Proton-Induced X-Ray Emission Spectrometry in Archaeology

, 1987
Proton-induced x-ray emission (PIXE) spectrometry is fast developing a reputation as a powerful analytical tool in the study of a range of ancient materials, including bronze, iron, gold, glass, faience, and smelting slag. PIXE data allows determination of the primary constituents which would indicate their recipe of production and determine their bulk
Swann, C. P., Fleming, S. J.
openaire   +1 more source

Self‐supportive Three‐Way Photoelectrochemical System Achieving Uranium Recycling, Organic Oxidation, and Electricity Generation in Complex Waters

Advanced Functional Materials, EarlyView.
A self‐sustaining solar photoelectrochemical cell (SS‐PEC) is developed to recover uranium from aqueous UO22+ with concurrent organic oxidation and electricity production. The monolithical photoanode directly captures electrons from organic compounds, leading to the oxidation of organic compounds and the decomposition of uranium‐organic complexes ...
Yumei Wang, Qingming Zeng, Haodong Ji, Rongzhong Wang, Jiachen Wang, Yanjun Wen, Wonyong Choi, Qingyi Zeng   +7 more
wiley   +1 more source

A Phantom-Based Study of the X-Ray Fluorescence Detectability of Iron, Copper, Zinc, and Selenium in the Human Blood of Superficial and Cutaneous Vasculature

Metrology
Blood concentrations of essential trace elements can be used to diagnose conditions and diseases associated with excess or deficiency of these elements.
Mihai Raul Gherase, Vega Mahajan
doaj   +1 more source

Analysis of Trace Elements in Human Brain: Its Aim, Methods, and Concentration Levels

Frontiers in Chemistry, 2019
Trace elements play a crucial role in many biochemical processes, mainly as components of vitamins and enzymes. Although small amounts of metal ions have protective properties, excess metal levels result in oxidative injury, which is why metal ion ...
Cezary Grochowski, Cezary Grochowski, Eliza Blicharska, Paweł Krukow, Kamil Jonak, Kamil Jonak, Marcin Maciejewski, Dariusz Szczepanek, Katarzyna Jonak, Jolanta Flieger, Ryszard Maciejewski   +10 more
doaj   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Practices and Rules of 16th Century Genoese Gilding: Exploring Gold Leaf Thickness and Caratage through X-ray and Ion Beam Techniques

Heritage
This study investigates the practices and rules of Genoese gilding, drawing insights from a 16th-century manuscript containing regulations for gold leaf production.
Letizia Ciarlo, Massimo Chiari, Maria Clelia Galassi, Maurizio Ferretti, Elias Sideras-Haddad, Alessandro Zucchiatti, Elena Castagnotto   +6 more
doaj   +1 more source

Minerals from Macedonia. XXVIII. A tribute to academician Gligor Jovanovski

Macedonian Journal of Chemistry and Chemical Engineering, 2015
It is both rewarding and difficult to write a review article about the contributions of acade­mician Gligor Jovanovski to the study of minerals from Macedonia.
Bojan Šoptrajanov
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Nanoarchitectonics of WLC-H3PO4–MnFe2O3 nanocomposite for latent fingerprint detection

Hybrid Advances
Carbon-based material powders have been applied in fingerprints development. However, sustaining fluorescence in solid substances remains difficult due to the severe emission suppression of carbon-based compounds in solid-state materials.
B.G. Fouda-Mbanga, T. seyisi, K. Pillay, Zikhona TN   +3 more
doaj   +1 more source

The Analytical Techniques Used for the Determination of Metallic Elements in Crude Oils and by-Products. A Review Les méthodes analytiques utilisées pour la détermination d'éléments métalliques dans les pétroles bruts et leurs dérivés. Synthèse bibliographique

Oil & Gas Science and Technology, 2006
A review is made of the most important analytical techniques for determining metals such as lead, iron, vanadium, nickel, copper, chromium, cobalt and sodium which are present in crude oils and by-products.
Rodriguez A. R., Gonzalez M. C.
doaj   +1 more source