Zobrazeno 1 - 10 of 14 pro vyhledávání: '"Jan Arndt"'
1
Innovative Bauteilgestaltung mit inneren Strukturen
Autor: Uwe Mahn, Matthias Horn, Jan Arndt
Die neuen Fertigungsmöglichkeiten durch die Additive Fertigung ermöglicht es nicht nur topologisch neuartige Bauteile herzustellen, sondern auch Bauteile mit inneren Strukturen zu versehen, die der Bauteilbelastung angepasst sind oder anderen Funkt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd6b196e22baf91f9f3c192fa1f24a3
https://monarch.qucosa.de/id/qucosa:85307
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2
The underestimation of Cov19 lockdown effects in modeling urban population exposure to air pollution
Autor: Martin Otto Paul Ramacher, Ronny Badeke, Markus Quante, Josefine Feldner, Lea Fink, Jan Arndt, Ronny Petrik, Volker Matthias
SummaryThis study aims to quantify the combined effect of changing emissions and population activity in the estimation of urban population during the first COVID19-lockdown measures in the beginning of the year 2020. While most studies focus on the i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9e3c825e6ea3645b52cde35eaa4d260
https://doi.org/10.5194/egusphere-egu22-1121
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5
Einfluss der Atmosphärendynamik auf die Luftqualität in Zentraleuropa während des COVID-19 Lockdowns
Autor: Ronny Petrik, Markus Quante, Volker Matthias, Jan Arndt, lea Fink, Ronny Badeke, Ralf Wedemann
Die Emissionsänderungen aufgrund des COVID-19 Lockdowns stellten zweifellos die stärkste Reduktion seit Jahrzehnten dar. Besonders betroffen waren die Bereiche Straßen- und Luftverkehr, aber auch die Bereiche Industrie und Energieerzeugung. Durch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5eaefd6f3d072b55a59cba82462d1452
https://doi.org/10.5194/dach2022-303
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6
The role of emission reductions and the meteorological situation for air quality improvements during the COVID-19 lockdown period in central Europe
Autor: Martin Otto Paul Ramacher, Daniel Schwarzkopf, Volker Matthias, Josefine Feldner, Jan Arndt, Lea Fink, Ronny Badeke, Markus Quante, Eliza-Maria Link, Ronny Petrik, Ralf Wedemann
Publikováno v: Atmospheric Chemistry and Physics, Vol 21, Pp 13931-13971 (2021)
Matthias, V.; Quante, M.; Arndt, J.; Badeke, R.; Fink, L.; Petrik, R.; Feldner, J.; Schwarzkopf, D.; Link, E.-M.; Ramacher, M.; Wedemann, R.: The role of emission reductions and the meteorological situation for air quality improvements during the COVID-19 lockdown period in central Europe. In: Atmospheric Chemistry and Physics. Vol. 21 (2021) 18, 13931-13971. (DOI: /10.5194/acp-21-13931-2021)
The lockdown measures taken to prevent a rapid spreading of the coronavirus in Europe in spring 2020 led to large emission reductions, particularly in road traffic and aviation. Atmospheric concentrations of NO2 and PM2.5 were mostly reduced when com
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e053e89bf44e9fbef2b1aa9388760827
https://acp.copernicus.org/articles/21/13931/2021/
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7
Quantification of lightning-induced nitrogen oxide emissions over Europe
Autor: Armin Aulinger, Volker Matthias, Jan Arndt
Publikováno v: Atmospheric Environment. 202:128-141
In this study, the importance of lightning-generated NO over Europe in the year 2010 is assessed with the COSMO-CCLM - SMOKE-EU - CMAQ chemistry transport modeling system. Lightning data from TRMM satellite flash density data climatologies are taken
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3a02e1b3bcd220820203de80f4fa51e
https://doi.org/10.1016/j.atmosenv.2018.12.059
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8
Air quality improvements caused by COVID-19 lockdown measures in Central Europe – contributions of emission sectors and the meteorological situation
Autor: Jan Arndt, Lea Fink, Ronny Petrik, Eliza-Maria Link, Martin Otto Paul Ramacher, Josefine Feldner, Ronny Badeke, Volker Matthias, Daniel Schwarzkopf, Markus Quante
Corona lockdown measures caused unprecedented emission reductions in many parts of world. However, this does not linearly translate into improved air quality, since weather phenomena like precipitation, wind and solar radiation also show a significan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b05cfbd402d29186fb4783de0abfafe2
https://doi.org/10.5194/egusphere-egu21-12394
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9
Implementation of different big-leaf canopy reduction functions in the Biogenic Emission Inventory System (BEIS) and their impact on concentrations of oxidized nitrogen species in northern Europe
Autor: Volker Matthias, Armin Aulinger, Jan Arndt
Publikováno v: Atmospheric Environment. 191:302-311
Canopy reduction describes NO2 flux reduction at leaf stomata. We implemented the big-leaf reduction approaches of Wang et al. (1998) and Yienger and Levy (1995) in the Biogenic Emission Inventory System (BEIS) and compared them with the BEIS standar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a615aa66894dd97ba27c55b802c47db
https://doi.org/10.1016/j.atmosenv.2018.07.035
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10
Modelling the Temporal and Spatial Allocation of Emission Data
Autor: Jan Arndt, Armin Aulinger, Markus Quante, Volker Matthias, Johannes Bieser
Publikováno v: Springer Proceedings in Complexity ISBN: 9783030220549
Atmospheric chemistry transport models (CTMs) need spatially and temporally resolved emission data as input. Atmospheric concentrations of pollutants as well as their deposition depend not only on the emitted amount but also on place and time of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c3966c752817ed09271e923b4cfaa50
https://doi.org/10.1007/978-3-030-22055-6_30
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