Results 81 to 90 of about 179,064 (175)
Competitive pressure and labor productivity: world iron ore markets in the 1980s [PDF]
Does the extent of competitive pressure industries face influence their productivity? We study a natural experiment conducted in the iron ore industry as a result of the collapse in world steel production in the early 1980s. For iron ore producers, whose
James A. Schmitz, Jr. +1 more
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Archives of Foundry Engineering, 2016 This preliminary study characterizes the bronze metalworking on a defensive settlement of the Lusatian culture in former Kamieniec (Chełmno land, Poland) as it is reflected through casting workshop recovered during recent excavations.
Garbacz-Klempka A. +6 more
doaj +1 more source
LXIV. Analysis of a new variety of ore of antimony [PDF]
The Philosophical Magazinen ...
openaire +2 more sources
Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?
Agribusiness, Volume 42, Issue 4, Page 2057-2073, Autumn 2026.ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley +1 more source
HeliyonHeap leaching with a cyanide solution is used for processing low-grade ores; however, owing to the chemical, mineralogical, and physical characteristics of ores and their particle size distribution, extraction efficiencies are often low.
Bauyrzhan Surimbayev +6 more
doaj +1 more source
Fast Process Development Made Possible Using an Easy to Duplicate Integrated Microfluidic Platform
Chemistry–Methods, Volume 6, Issue 10, October 2026.We present a next‐generation microfluidic platform that accelerates membrane process development through integrated flow control, inline XRF monitoring, and machine‐learning‐assisted optimization. Demonstrated with a charged nanosheet membrane selectively recovering silver from real e‐waste leachates, the system enables rapid, Iow‐consumption, real ...
Iyo Baudouy +7 more
wiley +1 more source
, 1994 Flier advertising a concert by Antimony, a punk band from Washington D.C. The concert was to occur at the Wesley Student Center in State College, Pennsylvania on February 11, 1994.
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Virgil Hicks mowing the lawn, 1930's
, 1930 Virgil Hicks mowing the lawn in the 1930's[Front] Boychuk-photo; Virgil Hicks 3; Pacific University Forest Grove, ORE.; Pacific University Library Forest Grove, Oregon; Pacificana Hicks, Virgil; Boychuk Studio 1015 S. W. Broadway Portland, ORE.; Students
Boychuk Studio, Portland, ORE., photographer
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Archaeometry, Volume 68, Issue 5, Page 1022-1036, October 2026.ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba +5 more
wiley +1 more source
Early Bronze Age Copper Circulation in the Guadalentín and Segura Valleys (SE Spain)
Archaeometry, Volume 68, Issue 5, Page 1139-1151, October 2026.ABSTRACT Identifying the sources of copper used in Early Bronze Age metalwork from south‐east Spain is key to resolving a long‐running debate concerning centralized control, or lack thereof, over El Argar society's economic organisation. This study provides the first substantial integrated programme of EDXRF and MC‐ICP‐MS analyses for copper‐base ...
Dirk Brandherm, Ignacio Montero‐Ruiz
wiley +1 more source