Results 51 to 60 of about 62,736 (280)

Spectroscopic identification of ethanol-water conformers by large-amplitude hydrogen bond librational modes [PDF]

open access: yesThe Journal of Chemical Physics, 2015
The far-infrared absorption spectra have been recorded for hydrogen-bonded complexes of water with ethanol embedded in cryogenic neon matrices at 2.8 K. The partial isotopic H/D-substitution of the ethanol subunit enabled by a dual inlet deposition procedure enables the observation and unambiguous assignment of the intermolecular high-frequency out-of ...
J. Andersen, J. Heimdal, R. Wugt Larsen
openaire   +5 more sources

A new sdO+dM binary with extreme eclipses and reflection effect [PDF]

open access: yes, 2015
We report the discovery of a new totally-eclipsing binary (RA=06:40:29.11; Dec=+38:56:52.2; J=2000.0; Rmax=17.2 mag) with an sdO primary and a strongly irradiated red dwarf companion.
Borkovits, T.   +12 more
core   +2 more sources

Simulation‐Based Assessment of Second‐Order Residual Stress Fields on the Fatigue Performance of Silicon‐Strengthened Ferritic Ductile Irons

open access: yesAdvanced Engineering Materials, EarlyView.
This work presents a simulation‐based framework based on representative volume elements (RVEs) that explicitly incorporates process‐induced second‐order residual stresses into the fatigue strength assessment of ductile cast iron (DCI). For the first time, this approach enables a direct evaluation of the influence of second‐order residual stress fields ...
Lutz Horbach   +4 more
wiley   +1 more source

Elastic and inelastic scattering of 12C ions by 7Li at 115 MeV [PDF]

open access: yesЯдерна фізика та енергетика, 2013
Angular distributions of the 7Li + 12C elastic and inelastic scattering as well as the 7Li(14N, Х) reactions with exited stable and unstable nuclei with Z = 3 6 were measured at Elab(12C) = 115 MeV.
A. T. Rudchik   +15 more
doaj  

Early Photometric and Spectral Evolution of Nova Cygni 2014 (V2659 Cyg)

open access: yesOpen Astronomy, 2015
We present optical spectroscopic and UBV (RI)C photometric observations of Nova Cygni 2014 (V2659 Cyg) from its rebrightening to the nebular stage. After the first maximum, the nova underwent several irregular flare-like rebrightenings, with amplitudes ...
Burlak M. A.   +2 more
doaj   +1 more source

Variability in Early Post-main-sequence Stars in Globular Cluster NGC 3201

open access: yesThe Astronomical Journal, 2023
In this paper we study stellar variability in the globular cluster NGC 3201 in the magnitude range V = 16–17, corresponding to the subgiant branch and blue stragglers region of the cluster.
D. Ulloa-Solís   +5 more
doaj   +1 more source

First Attempt at Spectroscopic Detection of Gravity Modes in a Long-Period Pulsating Subdwarf B Star -- PG 1627+017

open access: yes, 2006
In the first spectroscopic campaign for a PG 1716 variable (or long-period pulsating subdwarf B star), we succeeded in detecting velocity variations due to g-mode pulsations at a level of 1.0-1.5 km/s.The observations were obtained during 40 nights on 2 ...
A. P. Jacob   +16 more
core   +1 more source

Detection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry [PDF]

open access: yes, 2010
Using the CoRoT space based photometry of the O-type binary HD46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct signatures in the light curve.
A. Baglin   +68 more
core   +4 more sources

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

open access: yesAdvanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park   +8 more
wiley   +1 more source

Elastic and inelastic scattering of the 14C + 18O nuclei [PDF]

open access: yesЯдерна фізика та енергетика, 2010
New angular-distribution data of 14С + 18О elastic and inelastic scattering at the energy Elab(18O) = 105 MeV were obtained firstly. The data were analysed within the optical model and coupled-reaction-channels methods including contributions from most ...
A. T. Rudchik   +18 more
doaj  

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