Results 61 to 70 of about 3,494,768 (298)

Mycenaean Vitreous Artifacts: Overcoming Taxonomy Hurdles via Macro-XRF Analysis

Heritage
Mycenaean glass artifacts, such as beads and relief plaques, are highly susceptible to degradation, which can significantly modify their visual attributes and pose classification challenges.
Artemios Oikonomou, Maria Kaparou, Anastasios Asvestas, Kalliopi Tsampa, Ourania Kordali, Konstantinos Nikolentzos, Katia Manteli, Aikaterini Voutsa, Georgianna Moraitou, Dimitrios F. Anagnostopoulos, Andreas G. Karydas   +10 more
doaj   +1 more source

Neural network-based classification of X-ray fluorescence spectra of artists’ pigments: an approach leveraging a synthetic dataset created using the fundamental parameters method

Heritage Science, 2022
X-ray fluorescence (XRF) spectroscopy is an analytical technique used to identify chemical elements that has found widespread use in the cultural heritage sector to characterise artists' materials including the pigments in paintings.
Cerys Jones, Nathan S. Daly, Catherine Higgitt, Miguel R. D. Rodrigues   +3 more
doaj   +1 more source

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source

Survey on Van Gogh’s early painting technique through the non-invasive and multi analytical study of Head of peasant

Heritage Science, 2020
The strong lighting of the face against a dark background, the bold brushstroke and the model’s expressiveness that characterize Van Gogh’s Head of peasant, belonging to the Royal Museums of Fine Arts of Belgium collections, are typical features found in
Catherine Defeyt, Dominique Marechal, Francisca Vandepitte, David Strivay   +3 more
doaj   +1 more source

Exploring Liu Kang’s Paris Practice (1929–1932): Insight into Painting Materials and Technique

Heritage, 2021
This paper presents the results of an extensive study of 14 paintings by the pioneering Singapore artist Liu Kang (1911–2004). The paintings are from the National Gallery Singapore and Liu family collections.
Damian Lizun, Teresa Kurkiewicz, Bogusław Szczupak   +2 more
doaj   +1 more source

Facile Synthesis and Application of Dibutyl Aminophosphonate Polymer for Robust Uranium Capture from Concentrated Nitric Acid Process Streams

Advanced Materials Interfaces, EarlyView.
Dibutyl aminophosphonate (DiBAP) resin enables rapid, highly selec ve recovery of trace U(VI) from strongly acidic streams, with excellent acid stability, efficient column performance, and quan ta ve regenera on using ammonium carbonate. ABSTRACT The recovery of trace uranium from strongly acidic streams generated during uranium processing is of ...
Vinita Kumari, Ritesh Ruhela, Mahesh Tiwari, Deepak Tyagi, Sanjay Kumar Sahu   +4 more
wiley   +1 more source

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source

Discovery of a woman portrait behind La Violoniste by Kees van Dongen through hyperspectral imaging

Heritage Science, 2017
Despite the fact that Kees van Dongen was one of the most famous painters of the twentieth century, only little information about his palette and his technique is available.
Elodie Herens, Catherine Defeyt, Philippe Walter, David Strivay   +3 more
doaj   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source