Results 31 to 40 of about 17,746 (256)

Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock

open access: yesMaterials Proceedings, 2021
Magnesia is mainly produced from carbonate sources (magnesite (MgCO3)), and seawater brines (MgCl2). The calcination of magnesite and the precipitation of brine using quicklime (CaO) are processes that have significant CO2 footprints, even before ...
David Konlechner, Gregor Kappacher
doaj   +1 more source

Bringing together evolution on serpentine and polyploidy: spatiotemporal history of the diploid-tetraploid complex of Knautia arvensis (Dipsacaceae).

open access: yesPLoS ONE, 2012
Polyploidization is one of the leading forces in the evolution of land plants, providing opportunities for instant speciation and rapid gain of evolutionary novelties.
Filip Kolář   +6 more
doaj   +1 more source

Geochemical study of ultramafic rocks from Latowu area of North Kolaka, Southeast Sulawesi and its implication for CO2 sequestration

open access: yesJournal of Degraded and Mining Lands Management, 2018
Geochemistry of ultramafic rocks in the Latowu Area of North Kolaka Regency, Southeast Sulawesi has been investigated with the aim at deciphering of mineral characteristics, chemical composition and their potential use as carbon dioxide storage ...
S Sufriadin   +4 more
doaj   +1 more source

Integrated Slotted Serpentine Waveguide to Enhance Radiation Properties and Efficiency

open access: yesIEEE Access, 2022
Slotted waveguides are often used when high-power and high-efficiency antennas must be designed and particularly for millimeter waves applications (automotive radar for example).
Mohamed Himdi   +2 more
doaj   +1 more source

Flowering time evolution is independent of serpentine tolerance in the California flora

open access: yesEcosphere, 2017
Comparative phylogenetic tests have been only recently applied to the many hypotheses about the role ultramafic (serpentine) soils play in the evolution and ecology of regional floras.
Adam Schneider
doaj   +1 more source

Preliminary physicochemical evaluation of Kushta-e-Aahar Mohra: A unique formulation of Unani medicine

open access: yesAncient Science of Life, 2018
Introduction: Zahar Mohra (Serpentine/Bezoar stone) is mentioned as efficacious and a useful drug indicated in heart diseases in Unani medicine. It is also used to remove effect of poison and is termed in Unani Medicine as Daf-e-Zahar or Fad-e-Zahar ...
Mohd Akhtar Ali   +5 more
doaj   +1 more source

Giant serpentine aneurysms [PDF]

open access: yesNeurosurgical Focus, 2009
Segal and McLaurin first described giant serpentine aneurysms, based on their distinct angiographic features, in 1977. These lesions are ≥ 25 mm, partially thrombosed aneurysms with a patent, serpiginous vascular channel that courses through the aneurysm.
Lana D, Christiano   +3 more
openaire   +2 more sources

Backarc Lithospheric Thickness and Serpentine Stability Control Slab‐Mantle Coupling Depths in Subduction Zones

open access: yesGeochemistry, Geophysics, Geosystems, 2021
A key feature of subduction zone geodynamics and thermal structure is the point at which the slab and mantle mechanically couple. This point defines the depth at which traction between slab and mantle begins to drive mantle wedge circulation and also ...
Buchanan C. Kerswell   +2 more
doaj   +1 more source

Petrogenetic Study on Ultramafic Rocks from Waturapa and Surrounding Areas, South Konawe Regency, Southeast Sulawesi Province

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2023
The petrogenesis study of ultramafic igneous rocks in the South Konawe Region has been carried out by several previous researchers, however, petrogenesis of ultramafic igneous rocks in the Waturapa Region has never been carried out in detail.
Hasria   +3 more
doaj   +1 more source

Giant serpentine aneurysm [PDF]

open access: yesBMJ Case Reports, 2016
A 34-year-old man with a history of seizures presented after a generalised seizure. An MRI of the brain and MR angiogram of the brain (figure 1) were performed, demonstrating a partially thrombosed, giant intracranial aneurysm involving the left anterior cerebral artery (ACA).
Ramesh, Grandhi   +3 more
openaire   +2 more sources

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