Results 61 to 70 of about 298,446 (259)
Геофизический журнал, 2019 The history of origin and evolution in Ukraine of mineralogical studies of cosmic samples, mainly meteorites, and the main stages of formation of the Department of Сosmoecology and Cosmic Mineralogy at the M. P.
V. P. Semenenko
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Identification of geological faults by geophysical methods for risk assessment in underground mining
Геофизический журнал, 2023 High-accuracy prediction of geological faults, especially small-amplitude tectonic faults, is essential for an efficient and safe underground mining. Having such information about the location of tectonic faults in the rock mass reduces the likelihood ...
O.V. Sukhinina
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Late Cretaceous structural control and Alpine overprint of the high-sulfidation Cu-Au epithermal Chelopech deposit, Srednogorie belt, Bulgaria [PDF]
, 2018 The Chelopech epithermal high-sulfidation deposit is located in the Panagyurishte ore district in Bulgaria, which is defined by a NNW alignment of Upper Cretaceous porphyry-Cu and Cu-Au epithermal deposits, and forms part of the Eastern European Banat ...
Chambefort, Isabelle, Moritz, Robert
core
Choice and substantiation of stable crown shapes in deep-level iron ore mining [PDF]
, 2018 Purpose. The aim of the paper is to select and substantiate stable shapes of crown pillars through determining regularities of rock pressure impacts on their stability depending on the crown shapes, mining depths and iron ore hardness. Methods.
Kalinichenko, O +4 more
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Scalable Electrochemical Concrete Fabrication and Closed‐Loop Recycling
Advanced Science, EarlyView.The electrochemical‐driven recycling strategy establishes a reversible concrete material flow by extracting Ca, Si, Al, and Fe from concrete waste and regenerating functional feedstocks. These reversed products are reassembled into new concrete, which re‐enters service and ultimately returns to waste, enabling a closed‐loop, waste‐origin, and low ...
Hanxiong Lyu +7 more
wiley +1 more source
Advanced Science, EarlyView.A lithium‐bearing slag is investigated with the goal of holistic valorization. The present β‐eucryptite (LiAlSiO4) exhibits a high lithium content and low levels of impurities. The spinel contains most of the chromium and vanadium, representing additional valorization opportunities.
Peter Cornelius Gantz +9 more
wiley +1 more source
PALEOGEOGRAPHY OF THE AZOVBLACK SEA BASIN IN QUATERNARY TIME
Геологія і корисні копалини Світового океану, 2019 The article notes that during the Quaternary period there was at least 5—6 glaciations, which each time entailed a sharp change in the ecological and hydrological situation both in the Caspian Sea and in the Black Sea.
Yu.I. Inozemtsev +3 more
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Advanced Science, EarlyView.The critical pore spacing—approximately twenty times the pore radius—required to minimize electric field coupling is determined via finite element analysis. A multi‐layered Al2O3/Au/Si3N4 nanopore structure fabricated by helium ion beam lithography is proposed, enabling quantitative analysis of the target analyte while mitigating inter‐pore crosstalk ...
Silu Feng +5 more
wiley +1 more source
Геофизический журнал, 2014 Xenolites of white anorthosites have been found in anorthosites of the main phase of the Novom-irgorod massif of the Korsun-Novomirgorod pluton (the Ukrainian Shield, the Ingul megablock).
E. E. Shestopalova +3 more
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A Genomic Catalog of Migratory Microbiomes from Wild Birds across China's Habitats
Advanced Science, EarlyView.ABSTRACT Migratory birds play an important role in the spread of antimicrobial resistance (AMR); however, gaps in surveillance data from vital regions along migratory flyways across China limit the detection of emergent threats. Here, we assembled 340 metagenomes from 52 bird species covering 11 provincial administrative districts in China, presenting ...
Yanan Wang +13 more
wiley +1 more source