Results 11 to 20 of about 17,446 (261)

GOLD POTENTIAL OF THE UPPER DEVONIAN BASAL CONGLOMERATES OF THE KANIN PENINSULA (NENETS AUTONOMOUS DISTRICT, RUSSIA) [PDF]

open access: yesМинералогия, 2022
Native gold and garnets are described for the first time in heavy concentrates from coarse-grained sediments of the Upper Devonian Tayaokuyakha Formation, which occurs on the eroded Upper Riphean schists with angular and azimuthal unconformity (middle ...
M.A. Pavlova   +5 more
doaj   +1 more source

Development of White Persistent Phosphors by Manipulating Lanthanide Ions in Gadolinium Gallium Garnets

open access: yesAdvanced Photonics Research, 2021
Lanthanide ions act as excellent luminescence centers and good charge carrier traps. By selecting proper lanthanide ions, persistent phosphors with the desired luminescent color can be developed.
Jumpei Ueda   +4 more
doaj   +1 more source

Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting

open access: yesJournal of Advanced Ceramics, 2023
Transparent phosphor ceramics have received increasing attention for high-brightness laser lighting, but commercially available phosphor ceramics are currently mainly limited to yellow YAG:Ce and green LuAG:Ce garnets, leaving a "cyan cavity" which is an
Huajun Wu   +5 more
doaj   +1 more source

Hypertensive emergency and seizures in a 30‐year‐old man with anti–glomerular basement membrane disease

open access: yesClinical Case Reports, 2020
Anti–glomerular basement membrane disease can rapidly lead to renal failure and blood pressure dysregulation. A rare complication is hypertensive encephalopathy in the form of seizures.
Michael Mascola   +3 more
doaj   +1 more source

Insights Into the Microstructure and Dielectric Properties of Cold Sintered NaCa2Mg2V3O12 Based Composites

open access: yesFrontiers in Materials, 2021
Cold sintering process (CSP) was successfully employed to fabricate (1 − x) NaCa2Mg2V3O12-xNaCl [abbreviated as (1 − x) NCMVO-xNaCl] microwave dielectric ceramics.
Rakhi Madhuri   +2 more
doaj   +1 more source

Advances of the Cubic Symmetry Crystalline Systems to Create Complex, Bright Luminescent Ceramics

open access: yesPhotonics, 2023
A method to create compositionally disordered compounds with a high number of cations in the matrices, that utilize the cubic spatial symmetry of the garnet-type crystalline systems is demonstrated.
Valentina Smyslova   +8 more
doaj   +1 more source

Study on REE Distribution and Mineralogical Characteristics of Different Garnets by Electron Probe and Inductively Coupled Plasma-Mass Spectrometry

open access: yesYankuang ceshi, 2020
BACKGROUND Garnet is a common silicate mineral in metamorphic and magmatic rocks, and its isomorphism is very common. The existing data show that the color of garnet with different composition is quite different, but the relationship between the ...
JIA Yu-heng, QIAN Jian-ping
doaj   +1 more source

A Mélange of Subduction Ages: Constraints on the Timescale of Shear Zone Development and Underplating at the Subduction Interface, Catalina Schist (CA, USA)

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The presence of mélange at the subduction interface influences numerous geochemical and geophysical processes. However, the relationship between the timescales of mélange development, deformation, and resultant mass transport is poorly understood.
K. M. Harvey   +5 more
doaj   +1 more source

Garnet Chemical Zoning Based Thermobarometry: Method Evaluation and Applications in the Menderes Massif, Western Turkey

open access: yesGeosciences, 2021
The garnet chemical zoning method (GZM) is a reliable thermodynamic approach for forward modeling pressure-temperature (P-T) paths using observed garnet and bulk rock compositions.
Thomas M. Etzel, Elizabeth J. Catlos
doaj   +1 more source

Electrical Conductivity of Eclogitic Omphacite and Garnet at Water-Rich Conditions

open access: yesFrontiers in Earth Science, 2022
Electrical conductivity of water-rich omphacite and garnet in eclogite was measured at 1 GPa and 200–800°C in a piston cylinder press and by a Solartron-1260 impedance/gain-phase analyzer at 106-1 Hz frequency. The water content of pre-annealed omphacite
Hanyong Liu   +3 more
doaj   +1 more source

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