Results 21 to 30 of about 488,971 (308)

Microbial attachment to sulfide minerals in a bioleach environment [PDF]

open access: yes, 2009
Includes bibliographical references (leaves 119-125).This research pertains to bioleaching of copper containing ores with particular reference to the copper sulfide mineral chalcopyrite (CuFeS₂).
Africa, Cindy-Jade
core   +1 more source

Applicability of Earth Observation for Identifying Small-Scale Mining Footprints in a Wet Tropical Region

open access: yesRemote Sensing, 2017
The unpredictable climate in wet tropical regions along with the spatial resolution limitations of some satellite imageries make detecting and mapping artisanal and small-scale mining (ASM) challenging. The objective of this study was to test the utility
Celso M. Isidro   +3 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Hybrid optimization for DC resistivity imaging via intelligible-in-time logic and the interior point method

open access: yesScientific Reports
Geophysical DC resistivity imaging is crucial in subsurface exploration, environmental studies, and resource assessment. However, traditional inversion techniques face challenges in accurately resolving complex subsurface features because of the inherent
Paul Edigbue   +3 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

The release of aluminum from aluminosilicate minerals

open access: yes, 1978
--Acidified suspensions of Al-saturated kaolinite, montmorillonite, mica, illite, and biotite in 10-a M NaNO3 were potentiometrically titrated with 0.1 N NaOH and 0.1 N HNO3 in succession i a COz-free nitrogen atmosphere.
Cabrera, F.   +3 more
core   +1 more source

Government Documents on Rare Earth Minerals [PDF]

open access: yes, 2012
Rare earth minerals contain unique chemical and physical properties such as lanthanum, are found in small concentrations, need extensive precise processes to separate, and are critical components of modern technologies such as laser guidance systems ...
Chapman, Bert
core   +1 more source

Strata-bound Dolomitization in the Eocene Laki Formation, Matyaro Jabal Area Lakhi Range, Sindh, Pakistan [PDF]

open access: yesInternational Journal of Economic and Environment Geology, 2015
The limestone of Eocene age Laki Formation of Matyaro Jabal area, Lakhi Range SindhPakistan has been studied to see different sedimentary features and diagenetic overprinting.
Muhammad Waseem Khan   +3 more
doaj  

Solvent Extraction of Ni and Co from the Phosphoric Acid Leaching Solution of Laterite Ore by P204 and P507

open access: yesMetals, 2020
An alternative process of pre-roasting, phosphoric acid leaching followed by solvent extraction of a limonitic laterite ore was described in this work, with emphasis on the solvent extraction of Ni and Co from the phosphoric acid leaching solution by ...
Mingjun Rao   +8 more
doaj   +1 more source

On the mechanism of droplet rolling and spinning in inclined hydrophobic plates in wedge with different wetting states

open access: yesScientific Reports, 2021
A water droplet rolling and spinning in an inclined hydrophobic wedge with different wetting states of wedge plates is examined pertinent to self-cleaning applications.
Bekir Sami Yilbas   +5 more
doaj   +1 more source

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