Results 71 to 80 of about 112,709 (303)

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Techno-typological and use-wear insights on the chipped stone items discovered in the Glina Tell (in 1969)

Materiale și Cercetări Arheologice
In the collections of the Institute of Archaeology in Iași are stored various artefacts originating from the 1969 excavations from the Glina – La Nuci tell.
Vornicu, D., Minea, B.
doaj   +1 more source

House construction and settlement patterns on an Early Copper Age site in the Great Hungarian Plain

Communicationes Archaeologicae Hungariae, 2006
The excavations conducted as part of the Hungarian-American Körös Regional Archaeological Project were begun in 2000 at the Vésztő-Bikeri (Vésztő 20) site.
Attila, Gábor, Ottó, William A. Parkinson   +3 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Ecotoxicology and ecophysiology of mysids, with special reference to copper toxicity in Praunus flexuosus [PDF]

, 2000
Toxicity of dissolved copper was examined in a common coastal mysid population {Praunusflexuosus}. The life cycle and ecophysiology were studied under natural conditions throughout the year, and responses to dissolved copper were determined in the ...
Garnacho, Eva
core  

The eneolithic necropolis of Forlì-Celletta dei Passeri: taphonomy, anthropology and paleonutrition

Journal of Biological Research, 2012
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F. Bertoldi, M. Miari, L. Tagliani, P.A. Rasia, F. Bestetti   +4 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Obsidian at the Maddalena di Muccia (Marche, Central Italy) Archaeological Site: Evidence for Three Volcanic Sources in a Multi-Phase Context

Heritage
This paper presents the compositional characterisation of obsidian artefacts from the archaeological site of Maddalena di Muccia (Marche, Central Italy).
Pasquale Acquafredda, Italo Maria Muntoni, Cecilia Conati Barbaro, Elisabetta Gadaleta, Mauro Pallara   +4 more
doaj   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Glimpses of the Third Millennium BC in the Carpathian Basin [PDF]

, 2013
The relative and absolute chronology of the cultural groups of the 3rd millennium BC is a particularly exciting field of prehistoric research because this period spans the assumed boundary of two major periods — the final phase of the Copper Age and ...
Kulcsár, Gabriella
core