Results 91 to 100 of about 18,694 (284)
Loop Current and Orbital Magnetism in Pyrite-Type $Ir_{3}Ch_{8}$ ($Ch=Se,Te$) [PDF]
arXiv, 2013 We study the parent compound of the pyrite-type $Ir_{x}Ch_{2}$ iridium chalcogenide superconductors, $Ir_{0.75}Ch_{2}$ (or $Ir_{3}Ch_{8}$). While the lattice structure of the material is rather complicated, we show that the electron physics near the Fermi surface (FS) can be described by a three-band tight-binding model.
arxiv
Energy Science &Engineering, EarlyView.ABSTRACT Formation clogging in carbonate gas reservoirs is a significant challenge in natural gas extraction, particularly due to the complex mineral composition and physicochemical characteristics of carbonate rocks, which make clogging phenomena even more complex. This study aims to delve into the formation mechanisms of formation plugs in carbonate
Jin Pang +5 more
wiley +1 more source
Pyrite Incrustations of the Cretaceous Formations of Middle-sex County, N.J. [PDF]
, 1892 D. T. Marshall
openalex +2 more sources
Selective flotation of chalcopyrite from pyrite via seawater oxidation pretreatment
International Journal of Mining Science and Technology, 2023 The flotation separation of chalcopyrite from pyrite has attracted increasing attention due to the consumption of vast water resources and depressants.
Wanqing Li +4 more
doaj
Food Safety and Health, EarlyView.ABSTRACT Heavy metal contamination of agricultural soils and subsequent bioaccumulation in food crops poses significant public health concerns, particularly in mining regions. This study investigated heavy metal concentrations in turkey berry (Solanum torvum) fruits and associated soils from three locations in Ghana's mining belt, evaluated soil ...
Moses K. Golly +3 more
wiley +1 more source
Theoretical expectation of large Seebeck effect in PtAs$_2$ and PtP$_2$ [PDF]
, 2013 Motivated by a recent observation of good thermoelectric properties in %a %pyrite material PtSb$_2$, we theoretically study related pyrites %materials in an attempt to %find a %better thermoelectric material. %Our aim is to seek for a material which overcomes the suppression of the Seebeck coefficient at high temperatures.% in PtSb$_2$.
arxiv +1 more source
Journal of Chemical Technology &Biotechnology, EarlyView.Abstract BACKGROUND The heterogeneous photo‐Fenton process demands stable and efficient materials as catalysts to decompose hydrogen peroxide and generate reactive oxygen species to promote the degradation of organic contaminants in wastewater. In this study, the catalytic activity of an iron mining residue (IMR) was investigated for the heterogeneous ...
Nayara de M Costa‐Serge +4 more
wiley +1 more source
Journal of Plant Nutrition and Soil Science, EarlyView.Abstract Wet‐chemical extraction of soil to quantify pedogenic species or to remove specific compounds prior to other analyses is an established approach in analytical soil mineralogy and soil chemistry. Interpretation and informational value of data derived from long‐established and frequently used extractions, for instance involving dithionite ...
Thilo Rennert, Katharina R. Lenhardt
wiley +1 more source
Journal of Plant Nutrition and Soil Science, EarlyView.Clay mineral–hydrophobic organic compound interactions were studied with hexachlorobenzene and 21 bentonites. Adsorption strength varies depending on bentonite properties. For highly adsorptive bentonites, adsorption is comparable with adsorption to organic matter.
Leonard Böhm +6 more
wiley +1 more source
Литосфера, 2018 Object . The zonal pyrite nodules and metacrystals from siliceous siltstones of ore-bearing horizon of the Second ore body from the Yubileynoe massive sulfide deposit are studied. Materials and methods .
Alexander S. Tseluyko +2 more
doaj +1 more source