Results 141 to 150 of about 290,379 (268)
A Study of Spectral Variability Between Flaring and Nonflaring State in M74 X-1
The Astrophysical JournalWe conducted an extensive long-term spectral and timing study of the ultraluminous X-ray (ULX) source M74 X-1, using data taken between 2001 and 2021 by Chandra and XMM-Newton X-ray observatories.
Aman Upadhyay +2 more
doaj +1 more source
High-power cladding-pumped Raman and erbium-ytterbium doped fibre sources
, 2007 Raman fibres and rare-earth doped silica fibres have been investigated for many years as gain media for the amplification of optical signals in telecommunications thanks to their broad gain bandwidth. They are now widely used for that application.
Codemard, Christophe André
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Towards objective endoscopic diagnosis of Barrett's associated early neoplasia using fibre-optic Raman Spectroscopy [PDF]
, 2012 This translational research evaluates a novel, custom-built Raman probe for potential application as an in vivo diagnostic tool in the oesophagus.
Almond, Laurence Maximilian
core
Advanced Functional Materials, EarlyView.Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi +8 more
wiley +1 more source
Plasma Time and Power Sequence Impact on Wettability Tuning and Mechanical Properties of Fluorinated Monolayer Graphene [PDF]
Iranian Journal of Materials Science and EngineeringFluorinated graphene is an up-rising member of the graphene family and attracts significant attention since it is a 2D layer-structure, is self-lubricating, has wide bandgap and high thermal and chemical stability.
Asiehsadat Kazemi +2 more
doaj
Advanced Functional Materials, EarlyView.Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo +8 more
wiley +1 more source
Can Supernovae from Runaway Stars Mimic the Signs of Absorbing “Supervirial” Gas?
The Astrophysical JournalThe recent detection of large column density absorption lines from highly ionized gas in a few directions through the circumgalactic medium (CGM) of the Milky Way (MW) has been puzzling.
Mukesh Singh Bisht +3 more
doaj +1 more source
In-Vivo Lipidomics using Single-Cell Raman Spectroscopy
, 2010 We describe a method for direct, quantitative, in vivo lipid profiling of oil producing microalgae using single-cell laser-trapping Raman spectroscopy (LTRS).
Blake Simmons +5 more
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The further assessment of a handheld Raman spectroscopy probe for the intraoperative diagnosis of axillary lymph nodes in breast cancer [PDF]
, 2012 Axillary sentinel lymph node biopsy plays an important role in breast cancer management in determining further surgical and medical treatment options.
Tydeman, C.
core
Advanced Functional Materials, EarlyView.Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao +9 more
wiley +1 more source