Results 81 to 90 of about 2,365 (229)

Electrocatalytic activity and surface properties of tungsten bronzes

open access: yes, 1977
The electrocatalytic activities of sodium tungsten bronzes, including high purity crystals, platinum doped crystals, and platinum plated crystals, have been measured for oxygen reduction in acid solution.
Weber, M.F., Weber, Michael
core   +1 more source

Ferroelectric Tungsten Bronzes

open access: yes, 2016
Ferroelectric materials are everywhere in the modern society, from consumer electronics to car engines. Applications cover a whole range of devices such as sensors, actuators and transducers due to their dielectric or piezoelectric properties. Almost all technologically important ferroelectrics have the perovskite crystal structure, and the dominating ...
openaire   +2 more sources

MIDAS: a quantitative framework for high‐energy diffraction microscopy. Part II: accuracy, robustness and best practices

open access: yesActa Crystallographica Section A, EarlyView.
This paper experimentally establishes the accuracy, robustness and performance limits of the high‐energy diffraction microscopy data reduction methodology. Using dedicated far‐field and near‐field datasets, it quantifies the influence of key analysis parameters, demonstrates computational efficiency, and establishes a framework of best practices to ...
Hemant Sharma   +3 more
wiley   +1 more source

Clinical manifestations of dual‐gene variants in retinitis pigmentosa

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose Retinitis pigmentosa (RP) is an inherited retinal disease (IRD), whereby each affected individual typically harbours pathogenic variants in a single causative gene, yet the disorder exhibits marked genetic heterogeneity, with more than 100 genes reported to underlie RP.
Lasse Wolfram   +11 more
wiley   +1 more source

Hydrogen-free, one-step solid-phase fabrication of high-performance CsₓWO₃ nanopowders for energy-saving coatings

open access: yesNext Materials
The development of spectrally selective materials with high visible-light transparency and near-infrared (NIR) absorption is vital for energy-saving windows.
Wenyu Chen   +3 more
doaj   +1 more source

Procurement of Senonian Flint for Bladelets Production at the Early PPNB Site of Nahal Zahal in the Northern Negev Established for the First Time Using Chemical Composition Analysis

open access: yesArchaeometry, EarlyView.
ABSTRACT The hypotheses of Senonian flint to be a prime source of prehistoric “chalcedony” flint artefacts from the Negev Desert (Israel) was not investigated in detail thus far. By combining trace‐element profiling with statistical interpretation, ten flint items from Nahal Zahal, an Early Pre‐Pottery Neolithic B site in the northern Negev, were ...
Meir Finkel   +5 more
wiley   +1 more source

The preparation, characterisation and catalytic activity of tungsten bronzes

open access: yes, 1987
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The structure and catalytic aspects of tungsten bronzes have been considered.
Stevenson, Sheena, Stevenson, S
core  

The h‐SbxWO3+2x Oxygen Excess Antimony Tungsten Bronze [PDF]

open access: yes, 2019
We describe the previously unreported oxygen excess hexagonal antimony tungsten bronze with composition Sb0.5W3O10, in the following denoted as h‐SbxWO3+2x with x=0.167, to demonstrate its analogy to classical AxWO3 tungsten bronzes.
Stolze, Karoline   +7 more
core   +1 more source

Análises térmicas e processo de sinterização da cerâmica KSr2Nb5O15 dopada com CuO Thermal analysis and sintering process of KSr2Nb5O15 ceramic doped with CuO

open access: yesQuímica Nova, 2009
KSr2Nb5O15 is a ferroelectric material. The sintering process of the KSr2Nb5O15 ceramic doped with different amounts of CuO was investigated in this research. It was found that CuO is effective as promoter of the densification process of the KSN ceramic.
Delia do Carmo Vieira   +2 more
doaj   +1 more source

Drilling the Marathousa palaeo‐lake in Greece (Peloponnese): inferring the environmental context of a Middle Pleistocene archaeological site

open access: yesBoreas, EarlyView.
The Megalopolis Basin is located in the central Peloponnese (Greece), a region that is situated along one of the primary Pleistocene biogeographical corridors for intracontinental hominin migration. The basin comprises several hundred metres of Plio‐Pleistocene sediments alternating between clastics and lignites.
Ines J. E. Bludau   +13 more
wiley   +1 more source

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