Results 11 to 20 of about 446,173 (311)

Leaching Chalcopyrite with High MnO2 and Chloride Concentrations

open access: yesMetals, 2020
Most copper minerals are found as sulfides, with chalcopyrite being the most abundant. However; this ore is refractory to conventional hydrometallurgical methods, so it has been historically exploited through froth flotation, followed by smelting ...
David Torres   +6 more
doaj   +1 more source

Quantifying susceptibility of marine invertebrate biocomposites to dissolution in reduced pH [PDF]

open access: yesRoyal Society Open Science, 2019
Ocean acidification threatens many ecologically and economically important marine calcifiers. The increase in shell dissolution under the resulting reduced pH is an important and increasingly recognized threat.
Matthew Chadwick   +4 more
doaj   +1 more source

Effects of Carbonate Minerals on Shale-Hydraulic Fracturing Fluid Interactions in the Marcellus Shale

open access: yesFrontiers in Earth Science, 2021
Natural gas extracted from tight shale formations, such as the Marcellus Shale, represents a significant and developing front in energy exploration. By fracturing these formations using pressurized fracturing fluid, previously unobtainable hydrocarbon ...
Brennan Ferguson   +5 more
doaj   +1 more source

Liquisolid technique for dissolution rate enhancement of a high dose water-insoluble drug (carbamazepine) [PDF]

open access: yes, 2007
Different liquisolid formulations of carbamazepine were accomplished by dissolving the drug in the non-toxic hydrophilic liquids, and adsorbing the solution onto the surface of silica.
Yousef Javadzadeh   +8 more
core   +1 more source

The preparation temperature influences the physicochemical nature and activity of nanoceria

open access: yesBeilstein Journal of Nanotechnology, 2021
Cerium oxide nanoparticles, so-called nanoceria, are engineered nanomaterials prepared by many methods that result in products with varying physicochemical properties and applications.
Robert A. Yokel   +6 more
doaj   +1 more source

Gallstone Dissolution

open access: yesGastroenterology, 1982
non c'è
PONZ DE LEON, Maurizio, CARULLI, Nicola
openaire   +3 more sources

Dual-barrel conductance micropipet as a new approach to the study of ionic crystal dissolution kinetics [PDF]

open access: yes, 2013
A new approach to the study of ionic crystal dissolution kinetics is described, based on the use of a dual-barrel theta conductance micropipet. The solution in the pipet is undersaturated with respect to the crystal of interest, and when the meniscus at ...
Massimo Peruffo   +11 more
core   +1 more source

Induced Autophagy of Macrophages and the Regulation of Inflammatory Effects by Perovskite Nanomaterial LaNiO3

open access: yesFrontiers in Immunology, 2021
Perovskite nanomaterials (NMs) possess excellent physicochemical properties and have promising applications in light-emitting diodes (LEDs), lasers, photodetectors, and artificial synapse electronics.
Yang Wei   +17 more
doaj   +1 more source

DEVICE FOR CAUTERY OF BLEEDING USING A SALT WITH LOW CRYOHYDRATE DISSOLUTION TEMPERATURE

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2018
Objectives The aim of the study is to consider the design of a device for the cautery of bleeding by the method of local freezing of the blood flow zone performed using a salt with a low cryohydrate dissolution temperature, as well as to model heat ...
K. S. Gulmagomedov   +4 more
doaj   +1 more source

Experimental determination of plagioclase dissolution rates as a function of its composition and pH at 22°C. [PDF]

open access: yes, 2014
The steady-state, far-from-equilibrium dissolution rates of nine distinct plagioclases ranging in composition from An2 to An89 were measured in mixed flow reactors at 22 ± 2 C and pH from 2 to 11.
Gudbrandsson S., Wolff-Boenisch D., Gislason S. R. and Oelkers E. H.
core   +1 more source

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