Results 81 to 90 of about 37,987 (209)
Archaeometry, EarlyView.ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi +2 more
wiley +1 more source
Natrium Cyanide Replacement with Environmentally Friendly Polymerized Cyanide GOLDIX for Leaching of Gold Ore from Sumbawa Indonesia [PDF]
E3S Web of ConferencesIndonesia possesses abundant mineral resources, particularly gold ore. Leaching with sodium cyanide (NaCN) is commonly employed to extract gold in a cost-effective manner.
Reno Faturachman +2 more
doaj +1 more source
Medicine for the Material World
Archaeometry, EarlyView.ABSTRACT It is clear that many of the inorganic materials of antiquity have been used both as medicines for human ills and also as agents in technological processes. This paper speculates that there might have been a stronger link between these two functions in the past, based on the concept of “active agents”—materials that are efficacious at curing ...
A. M. Pollard
wiley +1 more source
Iranian Journal of Materials Science and Engineering, 2014 In this research, infiltration behavior of W-Ag composite compacts with Nickel and Cobalt as additives has been investigated. Nickel and Cobalt were added to Tungsten powder by two distinct methods: mixing elementally and reduction of salt solution.
N Parvin +4 more
doaj
Evaluation of Thiosulfate for Gold Recovery from Pressure Oxidation Residues
Materials ProceedingsThis paper investigated the potential of thiosulfate as an alternative to cyanide for gold recovery from pressure oxidation residues. Thiosulfate leaching experiments were conducted under controlled conditions, varying parameters such as initial ...
Christiana Mystrioti +5 more
doaj +1 more source
Shrimp shell waste as a potential corrosion inhibitor for mild steel in acid solution [PDF]
E3S Web of ConferencesApplication of corrosion inhibitor is a common method to minimize corrosion reaction of steel in aqueous environments. Research for an effective eco-friendly corrosion inhibitor is required due to the toxicity issues of the most commercially available ...
Safira Faradilla +2 more
doaj +1 more source
GROWTH OF REGIONAL COMPETITIVENESS ON THE INNOVATION BASIS (in Terms of Prydniprovya Region) [PDF]
, 2013 The article demonstrates results of studies concerning solving strategic problem of innovative reformation of economy both at national level and at regional one based upon intensive search of theoretical evidence and their implementation on the basis of ...
Соляник
core
Economics of Transition and Institutional Change, EarlyView.ABSTRACT We examine the sectoral impact of Western sanctions on Russian corporate performance from 2014 to 2021 using a panel of listed nonfinancial firms. Applying continuous‐time heterogeneous treatment models and difference‐in‐differences estimators, we document persistent divergence across sectors: The energy sector exhibits sustained ...
Eugene Nivorozhkin
wiley +1 more source
Biocorrosion of 5083 aluminium alloy by Citrobacter freundii SKC-4 in seawater [PDF]
E3S Web of ConferencesThe 5083-aluminium alloy, a widely utilized aluminium-magnesium alloy known for its high strength and excellent corrosion resistance, is commonly employed in various applications, including shipbuilding.
Dilasari Bonita +2 more
doaj +1 more source
Chasing the perfida Albione: Anglo‐Italian productivity gap in the late 1930s
The Economic History Review, EarlyView.Abstract This paper presents new estimates of Anglo‐Italian labour productivity levels in manufacturing in the late 1930s, derived using the standard single‐deflation approach. The findings confirm a substantial productivity gap between Italy and the United Kingdom at the aggregate level, alongside pronounced intersectoral heterogeneity.
Tancredi Salamone
wiley +1 more source