Results 91 to 100 of about 278,731 (238)

Programa

open access: yes, 2011
CALC ...
CALC, ALADI
core  

An Integrated Spectroscopy–Microkinetic Approach to Identifying Active‐Site Distributions in Palladium Single‐Atom Catalysts

open access: yesChemSusChem, Volume 19, Issue 17, 14 September 2026.
By integrating core‐level imaging with electrochemical testing, we reveal active site distributions that remain obscured when using these methods in isolation. We demonstrate that understanding the transition from independent site activity to ensemble performance is crucial for better agreement with experiment and overall catalyst design.
Ronan Gleeson   +5 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, Volume 28, Issue 17, 9 September 2026.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

Nanocrystalline Iridium Oxide Stabilized by Magnesium–Titanium–Spinel as Active Acidic Oxygen Evolution Reaction Catalyst

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Iridium–magnesium–titanium spinels increase the mass specific iridium activity and therefore can lower the noble metal loading in PEM water electrolysis. The synthesis of such catalyst is shown and the catalyst is thoroughly characterized. The increase in activity is contributed to the formation of small IrOx clusters in the transitional state from ...
Timo Prölß   +7 more
wiley   +1 more source

Biotite and Hornblende Composition Used to Investigate the Nature and Thermobarometry of Pichagchi Pluton, Northwest Sanandaj-Sirjan Metamorphic Belt, Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2008
Pichagchi pluton is situated in the northeastern part of the Soursat complex in Sanandaj-Sirjan metamorphic belt of Iran. The pluton with the age of 74.20 Ma is composed mainly granodiorite, diorite, and tonalite in which mafic minerals are biotite and ...
doaj  

Deviation From Fermi‐Liquid T2 Resistivity Caused by Collective Transport

open access: yesAnnalen der Physik, Volume 538, Issue 9, September 2026.
A comparison of the correction to the quadratic conductivity in helium three and in metals suggests a common origin. ABSTRACT “Fermi‐liquid behavior” is nowadays used as a shorthand for quadratic temperature dependence of the electrical resistivity. In a metal, for this to occur, electrons must be cooled well below the Fermi degeneracy temperature, TF ...
Kamran Behnia
wiley   +1 more source

Contemporaneous late cretaceous calc-alkaline and alkaline magmatism in Central Anatolia, Turkey: oxygen isotope constraints on petrogenesis

open access: yes, 2009
A wide variety of rock types were produced by the latest Cretaceous magmatism in the Central Anatolian Crystalline Complex. These rocks can be divided into three distinct units: (i) calc-alkaline, (ii) subalkaline/transitional, and (iii) alkaline.
Meighan, I.G.   +9 more
core   +1 more source

Cation‐Directed Host–Guest Assembly and Reversible Wheel to Cluster Interconversion in a 20‐Molybdate System

open access: yesChemistry – A European Journal, Volume 32, Issue 33, 1 September 2026.
The polyoxo‐20‐molybdate(VI) wheel [MoVI20O60{AsO2(CH3)2}12]12− (Mo20) can be prepared with or without a central guest in a controlled, cation‐directed fashion. When Mo20 is dissolved in water, it exhibits an immediate, quantitative, and fully reversible solution transformation to a tetranuclear Mo4 cluster, which transforms in the solid state again to
Arun Pal   +12 more
wiley   +1 more source

Provenance of Middle Triassic sediments in the Southern Youjiang Basin: Insights from detrital zircon geochronology and tourmaline geochemistry

open access: yesThe Depositional Record, Volume 12, Issue 4, September 2026.
Middle Triassic turbidites in the Youjiang Basin were chiefly derived from a Late Palaeozoic continental arc along the southeastern South China Block, as revealed by detrital zircon U–Pb geochronology and tourmaline geochemistry, supporting a tectonic model driven by Paleo‐Pacific subduction rather than Paleo‐Tethyan closure.
Yumei Wei, Lanqiu Meng, Yu Zhang
wiley   +1 more source

Petrology and Geochemistry of Intrusive Rocks in the Tanjung Area, South Sulawesi, Indonesia: Implications for Magma Origin, Source Materials, and Geodynamic Setting

open access: yesIraqi Geological Journal
The origin of magma, source materials, and geodynamic setting of plutonic and volcanic rocks was elucidated by studying the characteristics of the rocks in the Tanjung area, South Sulawesi, Indonesia.
Hasbi Bakri   +3 more
doaj   +1 more source

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