Results 231 to 240 of about 234,079 (317)

Exploratory research: Is forensic science a cause of miscarriage of justice in Canada? [PDF]

open access: yesForensic Sci Int Synerg
Lécuyer SJ   +3 more
europepmc   +1 more source

Strain Imaging of GaAs by Stimulated Raman Scattering Microscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Telecom‐wavelength stimulated Raman scattering (SRS) microscopy is developed for high‐throughput, nondestructive characterization of gallium arsenide (GaAs). By overcoming optical absorption limits of conventional Raman systems, this technique enables precise visualization of LO phonon frequency variations (< 0.2‐cm−1$$ {}^{-1} $$ precision).
Yuki Sano, Yasuyuki Ozeki
wiley   +1 more source

Inter‐Theta‐Gram Spectroscopy: A General Super‐Spectral‐Resolution Scattering Method Demonstrated on Diamond

open access: yesJournal of Raman Spectroscopy, EarlyView.
Inter‐Theta‐Gram spectroscopy enables super‐spectral‐resolution Raman analysis by jointly reconstructing the excitation laser line and Raman peak during an etalon angle scan, yielding internally referenced Raman shifts. Demonstrated on lab‐grown versus natural diamond, it resolves 0.1–0.2 cm−1 Raman‐shift offsets that are invisible in conventional ...
Yishai Amiel   +3 more
wiley   +1 more source

Operando Raman Spectroscopic Studies on Propane Dehydrogenation Over Co‐Based Catalysts

open access: yesJournal of Raman Spectroscopy, EarlyView.
Operando Raman spectroscopy was applied to investigate carbon‐containing species during propane dehydrogenation to propene over 3‐wt.% cobalt on silicalite‐1. The emergence of G and D Raman bands correlated with increased propene formation, suggesting that coverage of metallic Co by carbon species may be essential for selective propane dehydrogenation.
Jana Weiß   +3 more
wiley   +1 more source

Reidite Formation From Zircon Subjected to 20, 40, and 60 GPa Shock Experiments

open access: yesJournal of Raman Spectroscopy, EarlyView.
Structure disordering as a result of shock pressure: In zircon shocked from 20 to 60 GPa, the shock‐induced structural disorder increases with increasing shock pressure (gray area). Shock disorder of zircon is an integral part of its transformation to reidite: Reidite occurs after amorphous material.
Dmitry A. Zamyatin, Elizaveta Kovaleva
wiley   +1 more source

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