Results 11 to 20 of about 1,320,406 (342)

Spectra of high energy electron precipitation and atmospheric ionization rates retrieval from balloon measurements.

open access: yesScience of the Total Environment, 2019
The bremsstrahlung from high and relativistic energy electron precipitation (HEEP) measured with balloon based instruments provides information on energy spectra and fluence of the precipitating energetic electrons allowing calculations of the ...
I. Mironova   +8 more
semanticscholar   +3 more sources

On the formation of highly oxidized pollutants by autoxidation of terpenes under low-temperature-combustion conditions: the case of limonene and α-pinene [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
The oxidation of monoterpenes under atmospheric conditions has been the subject of numerous studies. They were motivated by the formation of oxidized organic molecules (OOMs), which, due to their low vapor pressure, contribute to the formation of ...
R. Benoit   +7 more
doaj   +1 more source

Review on atmospheric pressure ionization sources for gas chromatography-mass spectrometry. Part I: Current ion source developments and improvements in ionization strategies.

open access: yesAnalytica Chimica Acta, 2022
The use of atmospheric pressure ionization (API) sources has become very popular for gas chromatography-mass spectrometry (GC-MS) determinations.
J. F. Ayala-Cabrera   +4 more
semanticscholar   +1 more source

Impacts of Extreme Space Weather Events on September 6th, 2017 on Ionosphere and Primary Cosmic Rays

open access: yesRemote Sensing, 2023
The strongest X-class solar flare (SF) event in 24th solar cycle, X9.3, occurred on 6 September 2017, accompanied by earthward-directed coronal mass ejections (CMEs).
Aleksandra Kolarski   +5 more
doaj   +1 more source

Ionization waves in nanosecond pulsed atmospheric pressure plasma jets in argon

open access: yesHigh Voltage, 2021
Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China University of Chinese Academy of Sciences, Beijing, China State Key Laboratory of NBC ...
Bangdou Huang   +4 more
semanticscholar   +1 more source

Atmospheric Ionizations by Solar X‐Rays, Solar Protons, and Radiation Belt Electrons in September 2017 Space Weather Event

open access: yesSpace Weather, 2023
Energetic particles from space deposit their energies on the Earth's atmosphere and contribute to variations in the concentration of neutral components such as ozone which controls the atmospheric temperature balance.
Kiyoka Murase   +7 more
doaj   +1 more source

Studying the Complexity of Biomass Derived Biofuels

open access: yesEnergies, 2021
Biofuel produced from biomass pyrolysis is a good example of a highly complex mixture. Detailed understanding of its composition is a prerequisite for optimizing transformation processes and further upgrading conditions.
Yun Xu, Wolfgang Schrader
doaj   +1 more source

Utility of Atmospheric-Pressure Chemical Ionization and Photoionization Mass Spectrometry in Bottom-Up Proteomics

open access: yesSeparations, 2022
In a typical bottom-up proteomics workflow, proteins are enzymatically cleaved, and the resulting peptides are analyzed by HPLC with electrospray ionization (ESI) tandem mass spectrometry. This approach is practical and widely applied.
Simona Sedláčková   +4 more
doaj   +1 more source

Atmospheric ionization induced by precipitating electrons: Comparison of CRAC:EPII model with a parametrization model [PDF]

open access: yes, 2016
Results of a comparison of a new model CRAC:EPII (Cosmic Ray Atmospheric Cascade: Electron Precipitation Induced Ionization) with a commonly used parametric model of atmospheric ionization is presented.
A. Artamonov, A. Mishev, I. Usoskin
semanticscholar   +1 more source

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