Results 31 to 40 of about 109,015 (309)
Optimización de parámetros para la extracción de elementos desde minerales en medios ácido [PDF]
, 2020 [SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. Actualmente, la gran minería del cobre chilena se encuentra frente a nuevos problemas y desafíos a superar.
Toro Villarroel, Norman Rodrigo
core +2 more sources
Concept and Design of Martian Far-IR ORE Spectrometer (MIRORES)
Remote Sensing, 2022 Sulfide ores are a major source of noble (Au, Ag, and Pt) and base (Cu, Pb, Zn, Sn, Co, Ni, etc.) metals and will, therefore, be vital for the self-sustainment of future Mars colonies. Martian meteorites are rich in sulfides, which is reflected in recent
Jakub Ciazela +19 more
doaj +1 more source
The Spitzer Spectroscopic Survey of S-type Stars [PDF]
, 2012 S-type AGB stars are thought to be in the transitional phase between M-type and C-type AGB stars. Because of their peculiar chemical composition, one may expect a strong influence of the stellar C/O ratio on the molecular chemistry and the mineralogy of ...
A. A. Zijlstra +113 more
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Горные науки и технологии, 2021 Cassiterite-sulfide and polymetallic deposits of the Far Eastern Region (FER) were mined by both openpit and underground methods. This resulted in the emerging numerous mine workings and tailings storage facilities (TSFs) (abandoned without reclamation ...
V. P. Zvereva +2 more
doaj +1 more source
On the Balance of Intercalation and Conversion Reactions in Battery Cathodes
, 2018 We present a thermodynamic analysis of the driving forces for intercalation and conversion reactions in battery cathodes across a range of possible working ion, transition metal, and anion chemistries.
Canepa, Pieremanuele +3 more
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Evidence of microbial activity from a shallow water whale fall (Voghera, northern Italy) [PDF]
, 2012 The fossil bones, associated carbonate cements and enclosing concretion of a Miocene mysticete from inner shelf deposits (Monte Vallassa Formation, northern Italy) were analyzed for evidence of microbial activity. Optical and scanning electron microscopy,
Cavalazzi, B +5 more
core +4 more sources
Multiple carriers of Q noble gases in primitive meteorites [PDF]
, 2015 The main carrier of primordial heavy noble gases in chondrites is thought to be an organic phase, known as phase Q, whose precise characterization has resisted decades of investigation.
Amari +40 more
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Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity
FEBS Open Bio, EarlyView.Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz +9 more
wiley +1 more source
Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides [PDF]
, 1975 Thermogravimetric studies were made on naturally occurring sulfides of mercury, antimony and arsenic to determine activation energies and Arrhenius rates of reaction in vacuum and in atmospheres of air and nitrogen. Of the three sulfides only antimony
Rao, P.D., Town, J.W.
core
, 2008 The structure of binary As_xS_{1-x} glasses is elucidated using modulated-DSC, Raman scattering, IR reflectance and molar volume experiments over a wide range (8%
A. Boukenter +29 more
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