Results 11 to 20 of about 4,059 (221)

UV-Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H<sub>2</sub>CO<sub>3</sub>)<sub>n</sub> Calculations. [PDF]

open access: yesChemphyschem
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dinu DF   +7 more
europepmc   +2 more sources

Eponyms in science terms (Epistemological aspect) [PDF]

open access: yesSHS Web of Conferences, 2019
The paper is devoted to eponyms used in scientific discourse. The concept of the eponym is borrowed from linguistic research. The term is understood from epistemological standpoint.
Koshlakov Dmitriy   +3 more
doaj   +1 more source

Solitary and shocklike wave solutions for the Gardner equation in dusty plasmas

open access: yesJournal of Taibah University for Science, 2020
The propagation of dust ion acoustic waves (DIAWs) for two-temperature ions with isothermal electrons in dusty plasmas has been investigated. Using the reductive perturbation method, the Gardner equation is derived.
F. M. Allehiany   +3 more
doaj   +1 more source

In Situ Optimized Substrate Witness Plates: Ground Truth for Key Processes on the Moon and Other Planets

open access: yesEarth and Space Science, Volume 10, Issue 9, September 2023., 2023
Abstract Future exploration efforts of the Moon, Mars, and other bodies are poised to focus heavily on persistent and sustainable survey and research efforts, especially given the recent interest in a long‐term sustainable human presence at the Moon.
Prabal Saxena   +14 more
wiley   +1 more source

Spectral Contamination of the 6300 Å Emission in Single‐Etalon Fabry‐Perot Interferometers

open access: yesJournal of Geophysical Research: Space Physics, Volume 128, Issue 9, September 2023., 2023
Abstract The spectral line profile of the atomic oxygen O1D2—3P2 transition near 6300 Å in the airglow has been used for more than 50 years to extract neutral wind and temperature information from the F‐region ionosphere. A new spectral model and recent samples of this airglow emission in the presence of the nearby lambda‐doubled OH Meinel (9‐3) P2(2.5)
R. B. Kerr   +11 more
wiley   +1 more source

Indirect Observations of Electric Fields at Comet 67P

open access: yesJournal of Geophysical Research: Space Physics, Volume 128, Issue 9, September 2023., 2023
Abstract No spacecraft visiting a comet has been equipped with instruments to directly measure the static electric field. However, the electric field can occasionally be estimated indirectly by observing its effects on the ion velocity distribution. We present such observations made by the Rosetta spacecraft on 19 April 2016, 35 km from the nucleus. At
A. Moeslinger   +4 more
wiley   +1 more source

(Re‐)Packaging Knowledge and The Business of Format: Benjamin Martin's The General Magazine of Arts and Sciences (1755–64)

open access: yesJournal for Eighteenth-Century Studies, Volume 46, Issue 3, Page 313-331, September 2023., 2023
Abstract Benjamin Martin was an itinerant lecturer, instrument maker, and the author of a substantial number of textbooks mainly in the sciences. His biggest project, however, was The General Magazine of Arts and Sciences (1755–64), dedicated to the dissemination of knowledge to a broad audience.
Helga Schwalm
wiley   +1 more source

Halley's Comet [PDF]

open access: yesScientific American, 1909
n ...
openaire   +1 more source

On Halley's comet [PDF]

open access: yesJournal of the Franklin Institute, 1872
n ...
openaire   +2 more sources

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