Results 81 to 90 of about 139,399 (305)

Flotation extraction of elemental sulfur from gold-bearing cakes

open access: yesЗаписки Горного института, 2020
Currently, in the development of the raw materials base of the gold mining industry, there is a tendency to reduce the quality of the initial mineral raw materials due to the depletion of reserves of rich gold-bearing ores.
Svetlana A. IVANIK, Dmitrii A. ILYUKHIN
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

open access: yesAdvanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa   +19 more
wiley   +1 more source

Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

open access: yesMicroorganisms, 2020
A two-step process, which involved ferric leaching with biologically generated solution and subsequent biooxidation with the microbial community, has been previously proposed for the processing of low-grade zinc sulfide concentrates.
Maxim Muravyov, Anna Panyushkina
doaj   +1 more source

Sulfide removal and elemental sulfur recycling from a sulfide-polluted medium by Allochromatium vinosum strain 21D [PDF]

open access: yes, 2010
Phototrophic purple sulfur bacteria oxidize sulfide to elemental sulfur, which is stored as intracellular sulfur globules. The mutant Allochromatium vinosum strain 21D, containing an inactivated dsrB gene, is unable to further oxidize intracellularly ...
Clemens G. Borkenstein, Ulrich Fischer
core   +2 more sources

Enhanced dispersibility of graphitic carbon nitride particles in aqueous and organic media via a one-pot grafting approach [PDF]

open access: yes, 2017
A facile route to synthesize hydrophilically or hydrophobically grafted graphitic carbon nitride (g-CN) is reported. For this purpose, functionalized olefinic molecules with a low polymerization tendency are utilized for grafting onto the surface to ...
Antonietti, M., Kumru, B., Schmidt, B.
core   +1 more source

Scalable Polyelectrolyte Complex‐Based Sorbent With Hourly Sorption−Desorption Cycles for Multicyclic Atmospheric Water Harvesting in Arid Environments

open access: yesAdvanced Functional Materials, EarlyView.
A polyelectrolyte complex‐based sorbent is produced by scalable, environmentally benign aqueous phase inversion. Its porous, LiCl‐ and GO‐integrated architecture enables hourly adsorption−desorption cycles at low relative humidity (RH < 30%). A large‐scale prototype achieves multicyclic, solar‐driven atmospheric water harvesting of 1.37 L kg−1 day−1 ...
Seung‐Hwan Oh   +3 more
wiley   +1 more source

Utilization of fumarate by sulfur-reducing bacteria Desulfuromonas sp.

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Bìologìâ, Ekologìâ, 2016
The main goal of the work was to study the utilization of fumarate by sulfur-reducing bacteria Desulfuromonas sp. under different growth conditions and accumulation of hydrogen sulfide by bacteria in the media with sulfur and different electron donors ...
O. Сhayka   +3 more
doaj   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

open access: yesAdvanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee   +16 more
wiley   +1 more source

Fire and brimstone: the microbially mediated formation of elemental sulfur nodules from an isotope and major element study in the paleo-Dead Sea.

open access: yesPLoS ONE, 2013
We present coupled sulfur and oxygen isotope data from sulfur nodules and surrounding gypsum, as well as iron and manganese concentration data, from the Lisan Formation near the Dead Sea (Israel).
Tom Bishop   +2 more
doaj   +1 more source

Hierarchical Visualization of Materials Space with Graph Convolutional Neural Networks

open access: yes, 2018
The combination of high throughput computation and machine learning has led to a new paradigm in materials design by allowing for the direct screening of vast portions of structural, chemical, and property space.
Grossman, Jeffrey C., Xie, Tian
core   +1 more source

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