Results 71 to 80 of about 23,734 (254)
Review and Prospect of Uranium Hydrometallurgy in China
He huaxue yu fangshe huaxueUranium is an important strategic resource and energy mineral. With the rapid development of nuclear power, the demand for natural uranium has been increasing year by year.
Xue-bin SU +10 more
doaj +1 more source
Forces Behind South Australia's Unusual Structural Changes Since 1840
Australian Journal of Agricultural and Resource Economics, EarlyView.ABSTRACT The agricultural sector's share of GDP in growing economies typically declines but, for a century from the early 1850s, Australia's did not. That trend is most evident for the former colony and now State of South Australia (SA). Moreover, that share for SA has been almost flat since 1980 as well, along with the agricultural sector's share of ...
Kym Anderson
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X‐ray magnetic circular dichroism
Major Reference Works, Page 508-515., 2022 International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.
Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
Gerrit van der Laan C. Chantler +2 more
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Journal of the Royal Anthropological Institute, EarlyView.Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton +3 more
wiley +1 more source
Journal of the Royal Anthropological Institute, EarlyView.Our current understanding of the origins of Homo sapiens is limited, in part, by the fragmented fossil record from Late Pleistocene and early Holocene Africa. Here, we re‐examine the Kabua 1 cranium, an enigmatic and little‐studied Kenyan fossil discovered in the 1950s. We compare virtual reconstructions created previously by our team with a wide range
Abel Marinus Bosman +7 more
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Journal of the Royal Anthropological Institute, EarlyView.The Eastern Mediterranean lies directly on the principal migration route for human groups dispersing across Africa, Europe, and Asia. It also encompasses the Balkans, where fauna and flora, as well as hominin populations, are thought to have persisted through glacial periods.
Katerina Harvati
wiley +1 more source
Spherical Gravity Inversion Reveals Crustal Structure and Microplate Tectonics in the Caribbean Sea
Journal of Marine Science and EngineeringAs a convergent zone of multiple plates, the Caribbean Sea and its adjacent areas have experienced a complex tectonic evolution process and are characterized by prominent microplate development.
Feiyu Zhao +8 more
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Journal of the Royal Anthropological Institute, EarlyView.Recent archaeological discoveries, reviewed in this essay, challenge traditional views on the emergence of human symbolic cognition. Once believed to have originated in Europe around 40,000 years ago, new evidence shows it emerged much earlier across diverse regions.
Francesco d'Errico +3 more
wiley +1 more source
A Mathematical-Statistical Method for EPMA U-Th-Pb Chemical Age Analysis of Pitchblende
Yankuang ceshiPitchblende is susceptible to Pb substitution and/or U loss, resulting in deviations in chemical ages determined by the electron probe microanalysis (EPMA) U-Th-totalPb method.
Naiyuan LIU, Yifan WANG, Chunying GUO
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Automated particle analysis of D.B. Cooper's tie
Journal of Forensic Sciences, EarlyView.Abstract Automated particle analysis (APA) using scanning electron microscopy (SEM) and energy‐dispersive x‐ray spectrometry (EDS) is a well‐known method in forensics, especially as it is applied to gunshot residue analysis. Here we describe the analysis of particles lifted from D.B. Cooper's tie, which was left on the hijacked plane in 1971.
Thomas G. Kaye, Kent L. Rhodes
wiley +1 more source