Results 21 to 30 of about 134,760 (296)
Space 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
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Studying the Complexity of Biomass Derived Biofuels
Energies, 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
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Separations, 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
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The Atmospheric Influence on Cosmic-Ray-Induced Ionization and Absorbed Dose Rates
Universe, 2023 When high-energy particles originating from space penetrate the atmosphere, they may interact with atoms and molecules, initiating air showers composed of secondary and tertiary particles propagating towards the ground.
Alexandre Winant +3 more
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Recent Applications of Ambient Ionization Mass Spectrometry for Environmental Pollutant Detection [PDF]
Zhipu Xuebao, 2023 Along with the industrial development and human society progress, large number of pollutants have been discharged to induce the environmental pollution, which have attracted global attentions.
QIN Jing-yi, OUYANG Jin, NA Na
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Perspective on the Recent Measurements of Reduced Nitrogen Compounds in the Atmosphere
Frontiers in Environmental Science, 2022 Reduced-nitrogen compounds (RNC), such as ammonia and amines, play important roles in atmospheric aerosol nucleation, secondary organic aerosol (SOA), and cloud formation processes.
S.-H. Lee
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The charging of neutral dimethylamine and dimethylamine–sulfuric acid clusters using protonated acetone [PDF]
Atmospheric Measurement Techniques, 2015 Sulfuric acid is generally considered one of the most important substances taking part in atmospheric particle formation. However, in typical atmospheric conditions in the lower troposphere, sulfuric acid and water alone are unable to form particles.
K. Ruusuvuori +7 more
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Simulation of transient energy distributions in sub-ns streamer formation [PDF]
, 2013 Breakdown and streamer formation is simulated in atmospheric pressure nitrogen for a 2D planar electrode system. A PIC code with multigrid potential solver is used to simulate the evolution of the non-equilibrium ionization front on sub-nanosecond ...
Becker K H +11 more
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Applied Sciences, 2022 The main source of the ionization of the Earth’s atmosphere is the cosmic radiation that depends on solar activity as well as geomagnetic activity. Galactic cosmic rays constitute a permanent radiation background and contribute significantly to the ...
Panagiota Makrantoni +10 more
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A time scale for electrical screening in pulsed gas discharges [PDF]
, 2014 The Maxwell time is a typical time scale for the screening of an electric field in a medium with a given conductivity. We introduce a generalization of the Maxwell time that is valid for gas discharges: the \emph{ionization screening time}, that takes ...
Ebert, Ute +2 more
core +3 more sources