Nagoya Mathematical Journal, 2010 Abstract We give an explicit construction of the Ree groups of type G2 as groups acting on mixed Moufang hexagons together with detailed proofs of the basic properties of these groups contained in the two fundamental papers of Tits on this subject (see [7] and [8]). We also give a short proof that the norm of a Ree group is anisotropic.
De Medts, Tom, Weiss, Richard M.
openaire +4 more sources
Petrogenisis of Mafic- intermediate Magmatism, East of Sanandaj; A New approach with careful monitoring of geochemical evidences [PDF]
پترولوژی, 2019 The East Sanadaj magmatic rocks of the northern Sanandaj-Sirjan Zone, part of Zagros Orogen, comprise several intrusive bodies that were generated during northeastward subduction of Neo-tethys beneath the Iranian sector of the Eurasian plate.
Sanaz Yajam
doaj +1 more source
MINERALOGICAL-GEOCHEMICAL FEATURES OF ZIRCON FROM THE KUMIR GRANITIC STOCK, GORNY ALTAI [PDF]
Минералогия, 2022 Data on U-Pb age and composition of zircon from the Kumir granitic stock (Gorny Altai) and related greisens are presented for the first time. The magmatic, metamictic and pneumatolytic-hydrothermal zircons exhibit specific changes in main and trace ...
A.I. Gusev
doaj +1 more source
Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]
, 2006 The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël +13 more
core +1 more source
Concentration and Fractionation of Rare Earth Elements in Soils Surrounding Rare Earth Ore Area
Yankuang ceshi, 2019 BACKGROUND The study on content and fractionation characteristics of rare earth elements (REE) in soils around different types of rare earth mining areas can provide theoretical support and scientific advice for the control of the polluted environment ...
WANG Xue-feng +5 more
doaj +1 more source
An Essay on the Ree Octagons [PDF]
Journal of Algebraic Combinatorics, 1995 The authors give an explicit coordinatization of the Moufang generalized octagons associated with the Ree groups of type \(^ 2F_ 4\). This approach is used to give numerous applications, e.g. to the study of transitivity properties, suboctagons, subquadrangles and the determination of the groups of projectivities.
Joswig, Michael, Van Maldeghem, H.
openaire +1 more source
REE fractionation during granite weathering and removal by waters and suspended loads: Sr and Nd isotopic evidence [PDF]
, 2001 Very few studies deal with REE (rare earth element) mobility within the system soil–soil solution–streamwater. In this article, we try to characterize the fractionation and the migration of the REE in a granite-derived soil system located in a small ...
Dominique Aubert +5 more
core +1 more source
Characterisation of suspended and sedimented particulate matter in blue-green infrastructure ponds
Blue-Green Systems, 2020 Blue-green infrastructure (BGI) ponds have an important function of alleviating flood risk and provide water quality improvements among other multiple benefits.
V. Krivtsov +7 more
doaj +1 more source
thewoodsofcoding/pl-cpx-REE-T: pl-cpx-REE-T v1.0.0
, 2021 First release of the pl-cpx-REE-T R-code, including an example on how to use it and axample ...
S. Mueller
core +1 more source
REE Recovery from End-of-Life NdFeB Permanent Magnet Scrap: A Critical Review
Journal of Sustainable Metallurgy, 2017 NdFeB permanent magnets have different life cycles, depending on the applications: from as short as 2–3 years in consumer electronics to 20–30 years in wind turbines.
Yongxiang Yang +10 more
semanticscholar +1 more source