Results 81 to 90 of about 112,709 (303)
Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source
Animal Exploitation in the Copper Age of Eastern Slavonia: Zooarchaeological Evidence [PDF]
This paper presents the preliminary results of zooarchaeological analyses carried out as part of the project Culinary practices, husbandry, and land-use strategies during the Copper Age in Eastern Slavonia (CULPLUS).
Balen, Jacqueline +4 more
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Zinc and copper in dairy cattle feeding [PDF]
, 2011 This literature study shows that dietary supplementation of copper and zinc to dairy cattle above current recommendations does not show convincing health ...
Jongbloed, A.W., Goselink, R.M.A.
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Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source
Bikeri: Two Copper Age Villages on the Great Hungarian Plain [PDF]
, 2021 Bikeri: Two Copper Age Villages on the Great Hungarian Plain, about fifth-millennium BC settlements that reveal the transition from the Late Neolithic to the Early Copper Age, when these prehistoric societies developed new agropastoral subsistences ...
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Advanced Engineering Materials, EarlyView.Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara +4 more
wiley +1 more source
Copper isotope evidence for large-scale sulphide fractionation during Earth’s differentiation [PDF]
, 2015 The differentiation of Earth into a metallic core and silicate mantle left its signature on the chemical and isotopic composition of the bulk silicate Earth (BSE).
Savage, P.S. +7 more
core +1 more source
Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys
Advanced Engineering Materials, EarlyView.An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi +5 more
wiley +1 more source
Typological, chronological and palaeometallurgical studies on early copper age copper flat axes and copper chisels in Old Europe [PDF]
, 2004 Das Aibunar-Kupfer stellt das chronologisch früheste gegossene Material in Alteuropa dar. Der Hortfund von Karbuna enthält unterschiedliche Kupfersorten und legt - zusammen mit den Befunden aus Aibunar - nahe, dass der Beginn des Gusstechnik bereits im ...
Schmitz, Albert
core +1 more source
Neolithic and Copper Age at Moscano (Fabriano – AN)
IpoTESI di Preistoria, 2016 Recent excavations at Moscano in Fabriano have uncovered a double inhumation grave in a reused cavity, for which two 14C dates have been identified. The grave was found on the outskirts of a Copper Age settlement, featuring rough surface pottery similar ...
Gaia Pignocchi, Mara Silvestrini
doaj +1 more source