Results 51 to 60 of about 23,930 (198)

A 27Al nuclear magnetic resonance study on the optimalization of the development of the Al13 polymer

open access: yes, 1992
Synthesis conditions strongly influence the yield of the tridecameric polymer Al13 ([AlOAl(OH)(HO)]). An amount of 68% tridecamer was achieved by injection of alkali through a capillary tube into a 5 × 10 M Al solution at a rate of 0.015 ml/s up to an OH/
Geus, J. W.   +3 more
core   +1 more source

Vision outcomes in dogs with primary glaucoma surgically treated with lensectomy and endolaser cyclophotocoagulation after an Ahmed valve gonioimplantation failure

open access: yesVeterinary Ophthalmology, Volume 28, Issue 2, Page 207-217, March 2025.
Abstract Objective The aim of this study was to retrospectively evaluate vision outcomes of dogs with primary angle closure glaucoma (PACG) that underwent Ahmed valve gonioimplantation (AVG) followed by lensectomy and endolaser cyclophotocoagulation (ECP) with or without bleb resection after AVG failure.
Bactelius Turicea   +3 more
wiley   +1 more source

Energy Transfer Dynamics in the Collision-Induced Dissociation of Al6 and Al13 Clusters

open access: yes, 1995
International audienceUsing a model analytic potential energy function for Aln clusters [J. Chem. Phys. 1987, 87, 2205] and a UMP2(fc)/6-31G* potential derived here for the Ar---Al interaction, classical trajectory simulations are performed to study ...
de Sainte Claire, Pascal   +2 more
core   +1 more source

Hall Effect of the Al13Fe4 Decagonal Approximant and Its Ternary Extension Al13(Fe,Ni)4 [PDF]

open access: yes, 2010
We have measured Hall coefficient and electrical resistivity of the Al13Fe4 and Al13(Fe,Ni)4 monoclinic approximants to the decagonal quasicrystal. While the Al13Fe4 crystals are structurally well ordered, the ternary extension Al13(Fe,Ni)4 contains ...
Ivkov, Jovica   +7 more
core   +1 more source

Advanced removal of phosphorus from urban sewage using chemical precipitation by Fe-Al composite coagulants

open access: yesScientific Reports
Phosphorus (P) removal is a significant issue in wastewater treatment. This study applies Fe-Al composite coagulant to the advanced treatment of different P forms in biological effluent.
Hongbin Xu   +3 more
doaj   +1 more source

DIVERSIDADE GENÉTICA ENTRE ACESSOS DE SOJA TIPO ALIMENTO COM BASE NO ALGORITMO DE GOWER

open access: yesColloquium Agrariae, 2019
A avaliação simultânea de características qualitativas e quantitativas é uma excelente ferramenta na estimação da divergência genética entre acessos de bancos de germoplasma. O presente estudo objetivou caracterizar e estimar a divergência genética entre
Luiz Junior Perini   +4 more
doaj  

Reprioritising consultation in scoping reviews: Clarifying purposes and practices

open access: yesMedical Education, Volume 60, Issue 10, Page 1084-1091, October 2026.
Abstract The consultation stage of scoping reviews, originally proposed by Arksey and O'Malley and further developed by Levac et al and the Joanna Briggs Institute, remains a conceptually ambiguous and inconsistently applied component of knowledge synthesis. In this context, consultation refers to the planned, purposeful engagement with knowledge users
Marco Zaccagnini   +3 more
wiley   +1 more source

Ligand‐Free All‐Metal Super‐Chalcogens Stabilized by Jellium‐Guided Charge Engineering in Group 13 Zintl Superlattices

open access: yesAggregate, Volume 7, Issue 9, September 2026.
A Jellium‐guided strategy enables the unprecedented stabilization of ligand‐free Group 13 all‐metal clusters into ionic superlattices, overturning the Zintl paradigm and defining a new class of bandgap‐tunable, facile exfoliation quantum materials. ABSTRACT While considerable progress has been made in synthesizing ligand‐free all‐metal clusters (LFAMCs)
Jun Li   +7 more
wiley   +1 more source

Electron Affinity of Al13: A Correlated Electronic Structure Study [PDF]

open access: yes, 2011
Neutral and anionic 13-atom aluminum clusters are studied with high-level, fully ab initio methods: second-order perturbation theory (MP2) and coupled cluster theory with singles, doubles, and perturbative triples (CCSD(T)).
Gordon, Mark, Smith, Quentin
core  

Facile Synthesis of the Tridecameric Al13 Nanocluster Al13(μ3-OH)6(μ2-OH)18(H2O)24(NO3)15

open access: yes, 2016
Treatment of aluminum nitrate with an organic nitroso-containing compound yields the “flat”, tridecameric nanocluster Al13(μ3-OH)6(μ2-OH)18(H2O)24(NO3)15 (Al13) in good yield on a preparative scale under ambient conditions.
Jason T. Gatlin (2453884)   +4 more
core   +3 more sources

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