Open Access

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2021-01-27
10:57
OpenAccess [FZJ-2021-00869] Journal Article
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Impact of the South Asian monsoon outflow on atmospheric hydroperoxides in the upper troposphere
During the OMO (Oxidation Mechanism Observation) mission, trace gas measurements were performed on board the HALO (High Altitude Long Range) research aircraft in summer 2015 in order to investigate the outflow of the South Asian summer monsoon and its influence on the composition of the Asian monsoon anticyclone (AMA) in the upper troposphere over the eastern Mediterranean and the Arabian Peninsula. This study focuses on in situ observations of hydrogen peroxide (H2O2obs) and organic hydroperoxides (ROOHobs) as well as their precursors and loss processes. [...]
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2021-01-27
10:49
OpenAccess [FZJ-2021-00867] Journal Article
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Calibration of an airborne HO<sub><i>x</i></sub> instrument using the All Pressure Altitude-based Calibrator for HO<sub><i>x</i></sub> Experimentation (APACHE)
Laser-induced fluorescence (LIF) is a widely used technique for both laboratory-based and ambient atmospheric chemistry measurements. However, LIF instruments require calibrations in order to translate instrument response into concentrations of chemical species. [...]
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2021-01-27
09:23
Embargoed OpenAccess [FZJ-2021-00854] Journal Article
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Growth and characterization of pyrochlore-type (Ca,Ti)2(Nb,Ti)2O7 thin films
Pyrochlore-type (Ca,Ti)2(Nb,Ti)2O7 thin films have been grown on single-crystalline LaAlO3 and yttria-stabilized zirconia substrates by a magnetron sputtering system. Atomic-scale interface structure and growth mode of the (Ca,Ti)2(Nb,Ti)2O7 films on the substrates with different crystal structures have been investigated by advanced electron microscopy techniques. [...]
Published on 2021-01-16. Available in OpenAccess from 2023-01-16.: Download fulltextPDF;
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2021-01-27
09:20
Embargoed OpenAccess [FZJ-2021-00853] Journal Article
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Atomic scale study of the oxygen annealing effect on piezoelectricity enhancement of (K,Na)NbO 3 nanorods
With the increasing requirement of developing non-toxic piezoelectric materials, an alkaline niobate-based perovskite solid (K,Na)NbO3 (KNN) has been intensively studied. Promising piezoelectric properties are reported, which are mostly achieved by adding other elements, or simply varying the K/Na ratio. [...]
Published on 2020-09-30. Available in OpenAccess from 2021-09-30.: Download fulltextPDF; Restricted: Download fulltextPDF;
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2021-01-26
13:06
OpenAccess [FZJ-2021-00844] Talk (non-conference) (Invited)

Storage Ring Electric Dipole Moment Measurement
Seminar Universitz of Liverpool, LiverpoolLiverpool, UK, 30 Jan 20202020-01-30
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2021-01-26
11:35
OpenAccess [FZJ-2021-00839] Journal Article
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Distribution of Relaxation Times: A Tool for Measuring Oxygen Transport Resistivity of a Low–Pt PEM Fuel Cell Cathode
Oxygen transport resistivity of the cathode catalyst layer in a low–Pt PEM fuel cell has been determined using two methods: the first one is fitting of our recent physics–based impedance model to the experimental impedance spectra of the cell, and the second is calculation of distribution of relaxation times (DRT) using the same spectra. Comparison of the two methods shows that the DRT peak with the characteristic frequency on the order of 500 to 1000 Hz describes oxygen transport in the open pore and in Nafion film covering Pt/C agglomerates in the catalyst layer. [...]
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2021-01-26
11:09
OpenAccess [FZJ-2021-00834] Journal Article
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How Well Can Persistent Contrails Be Predicted?
Aerospace 7(12), 169 - () [10.3390/aerospace7120169]
Persistent contrails and contrail cirrus are responsible for a large part of aviation induced radiative forcing. A considerable fraction of their warming effect could be eliminated by diverting only a quite small fraction of flight paths, namely those that produce the highest individual radiative forcing (iRF). [...]
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2021-01-26
10:20
OpenAccess [FZJ-2021-00825] Journal Article/Contribution to a conference proceedings
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Speeding up complex multivariate data analysis in Borexino with parallel computing based on Graphics Processing Unit
15th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2017, SudburySudbury, Canada, 24 Jul 2017 - 28 Jul 20172017-07-242017-07-28 Journal of physics / Conference series 1342(1), 012115 - () [10.1088/1742-6596/1342/1/012115]
A spectral fitter based on the graphics processor unit (GPU) has been developed for Borexino solar neutrino analysis. It is able to shorten the fitting time to a superior level compared to the CPU fitting procedure. [...]
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2021-01-26
10:19
OpenAccess [FZJ-2021-00824] Journal Article/Contribution to a conference proceedings
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Data selection strategy for solar neutrino analysis with Borexino
15th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2017, SudburySudbury, Canada, 24 Jul 2017 - 28 Jul 20172017-07-242017-07-28 Journal of physics / Conference series 1342(1), 012110 - () [10.1088/1742-6596/1342/1/012110]
The Borexino collaboration has recently released the first simultaneous measurement of the interaction rates of pp, 7Be and pep solar neutrinos. This result was made possible by the unprecedented low background of the scintillator during Phase-II, together with new data analysis techniques. [...]
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2021-01-26
10:19
OpenAccess [FZJ-2021-00823] Journal Article
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Laboratory Validation and Field Deployment of a Compact Single-Scattering Albedo (SSA) Monitor
Abstract. An evaluation of the performance and accuracy of a Cavity Attenuated Phase-Shift Single Scattering Albedo Monitor (CAPS PMssa, Aerodyne Res. [...]
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