Results 41 to 50 of about 438,188 (201)
, 2018 The rare earth elements (REE) are vital to modern technologies and society and are amongst the most important of the critical elements. This special issue of Resources examines a number of facets of these critical elements, current and future sources of ...
Jowitt, Simon M.
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Trace element geochemistry of ordinary chondrite chondrules: the type I/type II chondrule dichotomy [PDF]
, 2015 We report trace element concentrations of silicate phases in chondrules from LL3 ordinary chondrites Bishunpur and Semarkona. Results are similar to previously reported data for carbonaceous chondrites, with rare earth element (REE) concentrations ...
Alard, Olivier +2 more
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Journal of Economic Geology, 2012 Qahr-abad fluorite deposit is located 58 km southeast of Saqqez, in northwestern Kordestan province and in northern end of Sanandaj-Sirjan Zone. The factors such as change in physicochemical conditions of mineralization environment (pH and Eh), variation
Babak Talaei, Ali Abedini
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Prospects for identifying the Mississippi Valley type deposits in the North-East of Russia
Литосфера, 2020 Research subject. The Mississippi Valley type deposits make up about a third of the global balance of lead and zinc reserves, resources and production.
A. L. Galyamov +4 more
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Spektra: Jurnal Fisika dan AplikasinyaCritical minerals are an important natural resource that will continue to be necessary for modern industries. This study aims to determine the distribution of critical minerals based on geochemical data and magnetic susceptibility.
Yensi Hariyanto +8 more
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Conformal bootstrap to R\'enyi entropy in 2D Liouville and super-Liouville CFTs
, 2019 The R\'enyi entanglement entropy (REE) of the states excited by local operators in two-dimensional irrational conformal field theories (CFTs), especially in Liouville field theory (LFT) and $\mathcal{N}=1$ super-Liouville field theory (SLFT), has been ...
He, Song
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Journal of Commutative Algebra, 2013 We study almost complete intersections ideals whose Rees algebras are extremal in the sense that some of their fundamental metrics---depth or relation type---have maximal or minimal values in the class. The focus is on those ideals that lead to almost Cohen--Macaulay algebras and our treatment is wholly concentrated on the nonlinear relations of the ...
Hong, Jooyoun +2 more
openaire +4 more sources
BUSINESS RELATIONS HIP QUALITY PRODUCTS AND COMPETITIVE ENTERPRISE [PDF]
Economy and Sociology, 2016 The article deals with questions related to the quality management of products based on the principles of marketing and competitiveness of the company.
Alexandru GRIBINCEA +2 more
doaj
Relative entropy of entanglement for certain multipartite mixed states
, 2008 We prove conjectures on the relative entropy of entanglement (REE) for two families of multipartite qubit states. Thus, analytic expressions of REE for these families of states can be given.
A. Acín +5 more
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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 ...
Aubert, Dominique +2 more
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