Results 151 to 160 of about 92,913 (234)

Reliable Estimation of Wavenumbers for Calcite Peaks

open access: yesJournal of Raman Spectroscopy, EarlyView.
The wavenumbers of the calcite peaks were accurately estimated using a combination of a He–Ne laser and Ne emission lines. The values following the ± symbol represent the expanded uncertainties, corresponding to an approximate 95% confidence interval.
Nobuyasu Itoh
wiley   +1 more source

Atmospheric Chemistry of CFH2CH2CH2CFH2: Kinetics and Mechanism of Reactions With Cl Atoms and OH Radicals

open access: yesInternational Journal of Chemical Kinetics, EarlyView.
ABSTRACT The atmospheric chemistry of 1,4‐difluorobutane (CFH2CH2CH2CFH2) was investigated through a kinetic and mechanistic study of the reaction with chlorine (Cl) atoms and hydroxyl (OH) radicals. Using Fourier transform infrared (FTIR) spectroscopy and relative rate methods, the rate constants (k) for the reactions were determined at 298 ± 2 K as k(
Ellen R. Kjaergaard   +4 more
wiley   +1 more source

What If Each Voxel Were Measured With a Different Diffusion Protocol? [PDF]

open access: yesMagn Reson Med
Coelho S   +7 more
europepmc   +1 more source

Transoral Robotic Lingual Tonsillectomy for Pediatric Obstructive Sleep Apnea

open access: yesThe Laryngoscope, EarlyView.
ABSTRACT Objectives Our objective was to investigate the safety and efficacy of transoral robotic surgery (TORS) lingual tonsillectomy (LT) with and without epiglottopexy and to compare it with non‐robotic approaches for children with obstructive sleep apnea (OSA).
Daniel J. Campbell   +4 more
wiley   +1 more source

A New Multiple Imputation Method for High-Dimensional Neuroimaging Data. [PDF]

open access: yesHum Brain Mapp
Lu T   +5 more
europepmc   +1 more source

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout   +17 more
wiley   +1 more source

General‐Purpose Hexagonal Programmable Photonic Integrated Circuit with a >30 GHz Free Spectral Range

open access: yesLaser &Photonics Reviews, EarlyView.
A compact and low insertion loss programmable photonic circuit is demonstrated based on a 7‐cell hexagonal waveguide mesh with a large free spectral range (FSR) of 31 GHz for a 6‐gate ring resonator configuration. Vernier rings and a dual‐injected ring configuration are demonstrated on this circuit with a further improved FSR of 93 GHz.
Yu Zhang   +6 more
wiley   +1 more source

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