Results 41 to 50 of about 86,603 (302)
Leaching kinetic of copper oxide ore containing carbonate gangue in the acid condition
工程科学学报, 2016 This article is focused on the leaching kinetic of copper oxide ore containing carbonate gangue.The effects of temperature,acid concentration,particle size,liquid-to-solid ratio and stirring rate on leaching of the copper oxide ore were determined.The ...
WU Ai-xiang +4 more
doaj +1 more source
Corrosion and deterioration mechanism of water-rich filling materials in carbonate solutions
工程科学学报, 2015 In order to research the impact of carbonate ions on water-rich filling materials,strength testing,scanning electron microscopy,X-ray diffraction analysis and IR spectrum testing were used to analyze the macro- and micro-structural change and the ...
GAO Meng, LIU Juan-hong, WU Ai-xiang
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Design of Carbon–Carbon Ylides
Angewandte ChemieAbstract Here, we have reported the computational design of a new class of ylides, elusive carbon–carbon ylides featuring zwitterionic σ‐bonds, derived from the norbornane‐2,6‐dione framework. Utilizing the state‐of‐the‐art computational methods, we have demonstrated that appropriate substitutions on this scaffold
Muhammad Yasir Mehboob +3 more
openaire +2 more sources
The sedimentology and diagenesis of copper-bearing rocks of the southern margin of the Damaran Orogenic Belt, Namibia and Botswana [PDF]
, 1981 Late Proterozoic sediments of the Doornpoort, Klein Aub and Ghanzi Formations outcrop on the southern foreland of the Damaran Orogenic Belt, and contain stratiform copper ore deposits.
Ruxton, Peter Antony
core +5 more sources
HeritageThe Rudny Altai is a western segment of the Altai orogenic belt. Its geological richness makes its geoheritage exploration an urgent matter. Investigations in the Loktevsky District (Altai Region, Russian Federation) have led to the finding of three ...
Jaroslav M. Gutak, Dmitry A. Ruban
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CARBONATES FROM THE VISHNEVOGORSKOE ZR-NB DEPOSIT (SOUTHERN URALS) [PDF]
Минералогия, 2015 Data on carbonates in alkaline rocks, pegmatites, and late veinlets of the Vishnevogorskoe deposit are summarized. Among 21 minerals studied, calcite is the major mineral; dolomite, ankerite, siderite, aragonite, bastnasite-(Ce), and strontianite are ...
V.I. Popova +5 more
doaj
Diagenetic evolution of some modern and ancient cold seep-carbonates from East Coast Basin, New Zealand. [PDF]
, 2009 Cold seep-carbonates are the microbially mediated by-products of the anaerobic oxidation of methane (AOM) at seafloor cold seeps, and are widespread about modern continental margins and in the geologic record.
Ewen, Sarah Maree
core
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
MoleculesThe relentless consumption of fossil fuels and soaring CO2 emissions have plunged the world into an energy and environmental crisis. As society grapples with these challenges, the demand for clean, renewable, and sustainable energy solutions has never ...
Bartłomiej Leks +5 more
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Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source