Results 211 to 220 of about 8,884 (302)

Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs

open access: yesJournal of Microscopy, EarlyView.
Abstract We compare three different methods of X‐ray analysis in a scanning electron microscope (SEM): energy‐dispersive X‐ray spectroscopy (EDX), wavelength‐dispersive X‐ray spectroscopy (WDX) and micro X‐ray fluorescence (μXRF). These methods are all applied to the same gallium arsenide (GaAs) wafer with a 0.8 nm layer of indium arsenide (InAs) on ...
Thomas Walther   +4 more
wiley   +1 more source

Determining bismuth content in GaAsBi alloys by energy‐dispersive X‐ray spectroscopy: A case study with multiple sets of k*‐factors for analytical transmission electron microscopy

open access: yesJournal of Microscopy, EarlyView.
Abstract Measuring the bismuth (Bi) content of ternary gallium arsenide bismuthide (GaAsBi) alloys is important because it sensitively influences their bandgap, and Bi is known to segregate vertically to the surface and sometimes also laterally during growth, so elemental distribution maps need to be quantified.
T. Walther
wiley   +1 more source

Running an electron microscopy core facility

open access: yesJournal of Microscopy, EarlyView.
Abstract As electron microscopes became more costly, technically complex, and integral to a wide range of scientific fields, centralised electron microscopy (EM) core facilities have become essential for maintaining accessibility, performance, and quality.
Ilkka Miinalainen, Eija Jokitalo
wiley   +1 more source

Analysis of Essential Minerals and Heavy Metals in Canine and Feline Dietary Supplements Marketed in the United States

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Heavy metals have been documented in dietary supplements for people and animals. Cadmium, selenium, lead, and mercury are of particular concern. Our objective was to determine the concentrations of five essential minerals and 12 heavy metals in 70 canine and feline dietary supplements, and to evaluate potential toxicity risks.
Taryn K. Pestalozzi   +2 more
wiley   +1 more source

Ocean warming indirectly affects seagrass performance through effects on sediment microbial communities

open access: yesNew Phytologist, EarlyView.
Summary Belowground microbes are increasingly recognised as mediators of plant responses to stress, but it remains unclear whether the thermal histories of marine plants and their associated belowground microbes influence plant performance under ocean warming.
Renske Jongen   +3 more
wiley   +1 more source

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