Results 101 to 110 of about 502,028 (310)
2015 IEEE Symposium on Security and Privacy, 2015 An open distributed system can be secured by requiring participants to present proof of work and rewarding them for participation. The Bitcoin digital currency introduced this mechanism, which is adopted by almost all contemporary digital currencies and related services.
openaire +2 more sources
Hundreds of minerals are chiral, that is, they appear in nature in two forms—left-handed and right-handed. Yet except for quartz, this key structural property has remained, by and large, in shadow in the world of minerals in research, in museum ...
David Avnir
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Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan [PDF]
, 1998 Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980).
Harada, Kaori +2 more
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Advanced Functional Materials, EarlyView.For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa +3 more
wiley +1 more source
Understanding airflow for enhancing Sepair performance [PDF]
MATEC Web of ConferencesIn this study, a laboratory-scale negative pressure fluidization air gravity separation unit was employed to conduct air velocity tests. Subsequently, computational fluid dynamics (CFD) modelling was utilized to gain insights into the airflow profile and
Hughes Nikki +3 more
doaj +1 more source
Phosphate and glyphosate adsorption by hematite and ferrihydrite and comparison with other variable-charge minerals [PDF]
, 2007 Adsorption by synthetic 2-line ferrihydrite and hematite of glyphosate and phosphate, separately and together, was compared with adsorption results for goethite, gibbsite and two kaolinites in order to determine adsorption differences and similarities ...
Borggaard, Ole Kragholm +1 more
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Intracrystalline Void‐Mediated Toughening of Brittle Crystals in Quail Eggshells
Advanced Functional Materials, EarlyView.In quail eggshells, the high density and disordered arrangement of intracrystalline voids inhibit lattice cleavage, suppress long‐range crack propagation, and promote deformation twinning and quasi‐plasticity, serving as an essential toughening motif. We show that these voids remain within a narrow subcritical size range and therefore predominantly do ...
Jingxiao Zhong +16 more
wiley +1 more source
Investigation of the surface properties of gangue minerals in PGM bearing ores [PDF]
, 2005 Bibliography: leaves 90-95.The recovery of Platinum Group Minerals (PGM) and associated sulphides by froth flotation from the Bushveld Igneous Complex is complicated by the presence of naturally floatable gangue minerals such as talc.
Martinovic, Jasmina
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Evolution of visualisation and digital twin technologies in mining
International Journal of Coal Science & TechnologyIn the era of big data and digital twins, visualisation has emerged as a critical tool for addressing the complexities of mining digitalisation. This paper provides a systematic review of the progression of mining visualisation, aiming to identify and ...
Ruiyu Liang +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Here, we establish a low‐dose liquid‐phase electron microscopy workflow for real‐time observation of biological processes in hydrated conditions. Beam damage is reduced by imaging only 20% of the pixels and reconstructing the complete image using an inpainting algorithm.
Luco Rutten +7 more
wiley +1 more source