Results 61 to 70 of about 502,171 (420)
Advanced Engineering Materials, EarlyView.The study presents an efficient simulation approach for the polymer laser powder bed fusion process polymers process, validated with polyamide 12, polyamide 6, and polyetherketoneketone. It shows that inter layer time affects part density, with 90s yielding dense parts.
Claas Bierwisch +4 more
wiley +1 more source
La metalurgia inca: estudio a partir de las colecciones del Museo de América de Madrid
Bulletin de l'Institut Français d'Études Andines, 2017 Metallurgy in Inca times reflects a technological heritage of over 2,000 years of metalworking in the vast region of the Central Andes. Copper and its alloys, silver, and gold were widely used metals.
Salvador Rovira
doaj +1 more source
Seal boxes from the Viminacium site [PDF]
Starinar, 2013 Bronze seal boxes that had the function of holding the wax seal on the Viminacium site - Upper Moesia (Stari Kostolac, Serbia), mainly from the area of the necropolis (ten were found in the graves and ten at the cemetery between the graves). Six are from
Milovanović Bebina +1 more
doaj +1 more source
Hydrogen, 2022 Arc brazing is an alternative joining technology well-suited for processing thermally sensitive materials and to produce mixed material connections.
Oliver Brätz +3 more
doaj +1 more source
Multi-Granularity Archaeological Dating of Chinese Bronze Dings Based on a Knowledge-Guided Relation Graph [PDF]
arXiv, 2023 The archaeological dating of bronze dings has played a critical role in the study of ancient Chinese history. Current archaeology depends on trained experts to carry out bronze dating, which is time-consuming and labor-intensive. For such dating, in this study, we propose a learning-based approach to integrate advanced deep learning techniques and ...
arxiv
Advanced Engineering Materials, EarlyView.Temporal power modulation increases weld depth in high‐power laser beam welding of dissimilar round bars by nearly 20% compared to same average continuously welded welding power. The mechanism of action also applies to sheet welding and depends on the inertia of keyhole depth for the modulated laser beam power.
Jan Grajczak +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec +6 more
wiley +1 more source
CeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2017 This poster presents the physicochemical analysis results of the organic residues from copper alloy artifacts dated between 5th and 7th cent. A.D. FT-IR and GC–MS were used to identify the composition of the residues.
Koupadi Kyriaki
doaj +1 more source