Results 51 to 60 of about 14,750 (194)

Salzcluster mit Oberflächen‐Defekt zeigt ungewöhnliche Säure‐Base‐Chemie

Angewandte Chemie, Volume 138, Issue 7, 9 February 2026.
Die Austauschreaktion von Ameisensäure an Meersalz‐Aerosolen, bei der HCl freigesetzt wird, fordert die herkömmliche Säure‐Base‐Chemie heraus. Unsere Gasphasenversuche zeigen, dass diese Reaktion an reinen NaCl‐Clusterionen in Abwesenheit von Wasser stattfindet.
Jessica C. Hartmann, Jia Yang Lim, Yiqi Sheng, Marc Reimann, Sarah J. Madlener, Christian van der Linde, Chi‐Kit Siu, Martin K. Beyer   +7 more
wiley   +1 more source

Solid-State Excitation Laser for Laser-Ultrasonics [PDF]

, 2010
The inspection speed of laser-ultrasonics compared with conventional ultrasonic testing is limited by the pulse repetition rate of the excitation laser.
Fix, A., Frede, M., Mahnke, P., Neumann, J., Peuser, P., Platz, W., Schnars, U.   +6 more
core  

Hochdrucksynthese von Antimonnitrid Sb3N5 und Polynitrid Sb2N8 mit einfach gebundenen N810− Ketten

Angewandte Chemie, Volume 138, Issue 6, 2 February 2026.
Hochdrucksynthesen zwischen Antimon und molekularem Stickstoff in einer laserbeheizten Diamantstempelzelle führten zur Bildung von oC32‐Sb3N5 (51(1) GPa) und mP20‐Sb2(N8) (> 100 GPa). Beide Phasen wurden mittels Einkristall‐Röntgenmikrodiffraktion identifiziert und durch Berechnungen mittels Dichtefunktionaltheorie vollständig bestätigt.
Lukas Brüning, Nityasagar Jena, Elena Bykova, Konstantin Glazyrin, Ievgeniia Iermak, Stella Chariton, Vitali B. Prakapenka, Igor A. Abrikosov, Maxim Bykov   +8 more
wiley   +1 more source

Urban greenhouse gas emissions from the Berlin area: A case study using airborne CO2 and CH4 in situ observations in summer 2018

Elementa: Science of the Anthropocene, 2020
Urban areas are recognised as a significant source of greenhouse gas emissions (GHG), such as carbon dioxide (CO2) and methane (CH4). The total amount of urban GHG emissions, especially for CH4, however, is not well quantified. Here we report on airborne
T. Klausner, M. Mertens, H. Huntrieser, M. Galkowski, G. Kuhlmann, R. Baumann, A. Fiehn, P. Jöckel, M. Pühl, A. Roiger   +9 more
doaj   +1 more source

Heiße Luft triff kühle Analyse (Interview) [PDF]

, 2007
Intervie
Schumann, Ulrich
core  

Aerosol‐Cloud Interactions: Overcoming a Barrier to Projecting Near‐Term Climate Evolution and Risk

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Aerosol‐cloud interactions (ACI) are a major source of uncertainty in climate science, critically affecting our ability to project near‐term climate evolution and assess societal risks. These interactions influence effective radiative forcing, cloud dynamics, and precipitation patterns, yet remain insufficiently constrained due to limitations ...
Ulas Im, Bjørn H. Samset, Athanasios Nenes, Jennie L. Thomas, Harri Kokkola, Oleg Dubovik, Vassilis Amiridis, Antti Arola, Nicolas Bellouin, Angela Benedetti, Merete Bilde, Sara Blichner, Stefano Decesari, Annica M. L. Ekman, Carlos Pérez García‐Pando, Silke Gross, Edward Gryspeerdt, Otto Hasekamp, Ralph A. Kahn, Anton Laakso, Ulrike Lohmann, Louis Marelle, Andreas H. Massling, Cathrine Lund Myhre, Mira Pöhlker, Johannes Quaas, Tomi Raatikainen, Ilona Riipinen, Julia Schmale, Patric Seifert, Henrik Skov, Chris Smith, Moa K. Sporre, Philip Stier, Trude Storelvmo, Kostas Tsigaridis, Bastiaan van Diedenhoven, Annele Virtanen, Ulla Wandinger, Laura J. Wilcox, Paul Zieger   +40 more
wiley   +1 more source

Quantitative evaluation of ozone and selected climate parameters in a set of EMAC simulations [PDF]

Geoscientific Model Development, 2015
Four simulations with the ECHAM/MESSy Atmospheric Chemistry (EMAC) model have been evaluated with the Earth System Model Validation Tool (ESMValTool) to identify differences in simulated ozone and selected climate parameters that resulted from (i ...
M. Righi, V. Eyring, K.-D. Gottschaldt, C. Klinger, F. Frank, P. Jöckel, I. Cionni   +6 more
doaj   +1 more source

Modeling the Impact of Alternative Fuels and Hydrogen Propulsion on Contrail‐Cirrus: A Parameter Study

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.
Abstract Line‐shaped contrails formed behind aircraft can evolve into broadly spread and long‐living cirrus clouds under favorable conditions. These contrail‐cirrus contribute significantly to the aviation‐induced radiative forcing. While past modeling studies have examined contrail‐cirrus across various atmospheric and aircraft‐type dependent ...
Annemarie Lottermoser, Simon Unterstrasser   +1 more
wiley   +1 more source

Long-term simulation of the boundary layer flow over the double-ridge site during the Perdigão 2017 field campaign [PDF]

Atmospheric Chemistry and Physics, 2019
The Perdigão campaign 2017 was an international field campaign to measure the flow and its diurnal variation in the atmospheric boundary layer over complex terrain. A huge data set of meteorological observations was collected over the double-hill site by
J. Wagner, T. Gerz, N. Wildmann, K. Gramitzky   +3 more
doaj   +1 more source

Updating the radiation infrastructure in MESSy (based on MESSy version 2.55) [PDF]

Geoscientific Model Development
The calculation of the radiative transfer is a key component of global circulation models. In this article, we describe the most recent updates of the radiation infrastructure in the Modular Earth Submodel System (MESSy).
M. Nützel, M. Nützel, L. Stecher, P. Jöckel, F. Winterstein, M. Dameris, M. Ponater, P. Graf, M. Kunze   +8 more
doaj   +1 more source