Results 121 to 130 of about 8,234,031 (344)
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
O complexo Dadoxylon-Araucarioxylon do permo-carbonifero da Província Gondvânica: estudo taxonômico [PDF]
, 2008 Dissertação (mestrado) - Universidade Federal de Santa catarina, Centro de Ciências Biológicas. Programa de Pós-graduação em Biologia Vegetal.Os gêneros Dadoxylon Endlicher, 1847 e Araucarioxylon Kraus, 1870 referem-se a espécimes lenhosos ...
Kurzawe, Francine
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The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA)
, 2000 Lund, Richard (2000): The new Actinopterygian order Guildayichthyiformes from the Lower Carboniferous of Montana (USA).
Lund, Richard
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Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects
Advanced Engineering Materials, EarlyView.This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula +7 more
wiley +1 more source
Carbonate facies, sequences and associated diagenesis, upper cretaceous, tremp basin, Spanish pyrenees [PDF]
, 1994 This thesis details the results of an integrated study of carbonate platform sedimentology, geometry, evolution and diagenesis within a sequence stratigraphic framework.
Booler, Jonathan Paul
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Advanced Engineering Materials, EarlyView.This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
wiley +1 more source
, 2013 The Drahany Upland is built of a flysch sequence of Lower Carboniferous age (shale, greywackes, conglomerates), and a preflysch sequence of Devonian to Lower Carboniferous age (spilites, carbonates, shales).
Lehotský, Tomáš, Kováček, Martin
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Geologica Acta, 2018 The pre-Variscan rocks of the Pyrenees exhibit a polyphase deformation linked to the Variscan crustal shortening and a low-pressure–high-temperature metamorphism. However, there is scarce chronostratigraphic evidence of this Variscan deformation. In the
C. MARTÍN-CLOSAS, S. TRIAS, J.M. CASAS
doaj
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Devonian-Carboniferous boundary beds in the Vorkuta transverse uplift (Bolshaya Usa River)
, 2018 The paper contains multidisciplinary data on the lithology and palaeontology of the Devonian–Carboniferous boundary beds in the shallow-water facies in the Bolshaya Usa River section (Vorkuta Uplift). A recent discussion on the position and marker of the
Y.A. Vevel +3 more
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