Results 131 to 140 of about 30,134 (345)
Geological Journal, EarlyView.Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae +6 more
wiley +1 more source
High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?
Geological Journal, EarlyView.The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney +2 more
wiley +1 more source
The chemistry of Saudi Arabian sand: A deposition problem on helicopter turbine airfoils [PDF]
Recent operations in the Persian Gulf have exposed military helicopter turbines to excessive amounts of ingested sand. Fine particles, less than 10 microns, are able to bypass the particle separators and enter the cooling and combustion systems.
Smialek, James L.
core +1 more source
InfoMat, EarlyView.Irreversible calcium (Ca) plating and stripping pose significant challenges for Ca metal batteries due to the formation of an ion‐insulating passivation layer. This study demonstrates that ionic covalent organic frameworks (iCOFs) serve as effective artificial protective layers for Ca metal anodes, facilitating rapid Ca2+ transport and promoting ...
Jun Huang +11 more
wiley +1 more source
Condensation sequence of circumstellar cluster seeds (CSCCS)
Frontiers in Astronomy and Space SciencesIntroductionTraditionally, the condensation sequence of circumstellar dust is predicted based on the thermodynamic stabilities of specific condensates in the macroscopic bulk phase.
David Gobrecht
doaj +1 more source
Water cluster triggered vitrification in HKUST‐1 MOF crystal under pressure
InfoMat, EarlyView.Water molecules in the pore centre form an oriented pentagonal water cluster via H‐bonding, which exerts a pulling effect on Cu–O(ligand) bond and induces bond cleavage. Meanwhile, the broken fragment flips into an unfavourable arrangement that prevents the rejoining of the bond, which finally causes a continuous porous MOF network in the glassy state.
Jianguo Sun +13 more
wiley +1 more source
Glass Ionomer Cements Based in TiO2 by Sol-gel Method
Orbital: The Electronic Journal of Chemistry, 2019 Glass ionomer cements are used in dentistry for applications such as luting cements and as restoratives materials, due to their ability to chemically bond to the tooth.
Thiago Ilipronti +5 more
doaj
STUDIES ON THINNING, BAGGING AND ALUMINUM SILICATE SPRAYING ON YIELD AND QUALITY OF WANDERFULL POMEGRANATE [PDF]
, 2013 B. Samra, A. Shalan
openalex +1 more source
A Basic Study for Removal of Heavy Metal Elements from Wastewater using Spent Lithium-Aluminum-Silicate(LAS) Glass Ceramics [PDF]
, 2022 Min-Seok Go, Jei‐Pil Wang
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Microscopy Research and Technique, EarlyView.This study demonstrates that Biodentine XP exhibits superior cytocompatibility, promotes odontogenic differentiation, and enhances mineralization in human dental pulp stem cells, supporting its use in regenerative endodontics. Resin‐modified materials showed lower bioactivity, highlighting the importance of material composition in pulp therapy outcomes.
Francisco Javier Rodríguez‐Lozano +5 more
wiley +1 more source