Results 61 to 70 of about 112,603 (200)

Frequency comb vernier spectroscopy in the near infrared

open access: yes, 2014
We perform femtosecond frequency comb vernier spectroscopy in the near infrared with a femtosecond Er doped fiber laser, a scanning high-finesse cavity and an InGaAs camera.
Amani, M.   +7 more
core   +1 more source

Atmospheric Chemistry for Astrophysicists: A Self-consistent Formalism and Analytical Solutions for Arbitrary C/O [PDF]

open access: yes, 2015
We present a self-consistent formalism for computing and understanding the atmospheric chemistry of exoplanets from the viewpoint of an astrophysicist.
Heng, Kevin   +2 more
core   +2 more sources

Laboratory studies, analysis, and interpretation of the spectra of hydrocarbons present in planetary atmospheres including cyanoacetylene, acetylene, propane, and ethane [PDF]

open access: yes, 1990
Combining broadband Fourier transform spectrometers (FTS) from the McMath facility at NSO and from NRC in Ottawa and narrow band TDL data from the laboratories with computational physics techniques has produced a broad range of results for the study of ...
Blass, William E.   +3 more
core   +1 more source

Length Dependence of Ionization Potentials of Trans-Acetylenes: Internally-Consistent DFT/GW Approach [PDF]

open access: yes, 2015
We follow the evolution of the Ionization Potential (IP) for the paradigmatic quasi-one-dimensional trans-acetylene family of conjugated molecules, from short to long oligomers and to the infinite polymer trans-poly-acetylene (TPA). Our results for short
Blum, Volker   +4 more
core   +2 more sources

Kinetic modeling for chemiluminescent radicals in acetylene combustion

open access: yesJournal of the Brazilian Chemical Society, 2006
Kinetic modeling to reproduce the experimental chemiluminescence of OH*, CHO*, CH* and C2* excited radicals formed in C2H2/O2 combustion in a closed chamber was evaluated.
Marques Carla S. T.   +2 more
doaj  

Carbon-rich dust production in metal-poor galaxies in the Local Group [PDF]

open access: yes, 2012
We have observed a sample of 19 carbon stars in the Sculptor, Carina, Fornax, and Leo I dwarf spheroidal galaxies with the Infrared Spectrograph on the Spitzer Space Telescope.
Bernard-Salas, J.   +9 more
core   +3 more sources

Use of the group theory for classification of electronic states of acetylene [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The electronic states of the acetylene molecule are classified employing the group theory combined with the use of the Walsh diagrams and some elementary quantum chemical considerations.
MILJENKO PERIC, STANKA JEROSIMIC
doaj  

2-(1-Hydroxypropyn-2-yl)-1-vinylpyrroles: the first successful Favorsky ethynylation of pyrrolecarbaldehydes

open access: yesBeilstein Journal of Organic Chemistry, 2015
1-Vinylpyrrole-2-carbaldehydes react with acetylene at atmospheric pressure in a NaOH/EtOH/DMSO system at 7–10 °C to afford 2-(1-hydroxypropyn-2-yl)-1-vinylpyrroles in 53–94% yield.
A. V. Ivanov   +6 more
doaj   +1 more source

Photoinduced Coupling of Acetylenes and Quinone in the Solid State as Preorganized Donor−Acceptor Pairs [PDF]

open access: yes, 1998
Crystalline electron donor−acceptor (EDA) complexes of various diarylacetylenes (DA) and dichlorobenzoquinone (DB) are isolated and structurally characterized by X-ray crystallography.
Bosch, E.   +3 more
core   +1 more source

Interstitial pneumonitis after acetylene welding: A case report

open access: yesInternational Journal of Occupational Medicine and Environmental Health, 2014
Acetylene is a colorless gas commonly used for welding. It acts mainly as a simple asphyxiant. In this paper, however, we present a patient who developed a severe interstitial pneumonitis after acetylene exposure during aluminum welding.
Miran Brvar
doaj   +1 more source

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