Open Access

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2019-05-22
11:54
OpenAccess [FZJ-2019-03059] Journal Article
et al
High Depolarization Ratios of Naturally Occurring Cirrus Clouds Near Air Traffic Regions Over Europe
Geophysical research letters 45(23), 13,166-13,172 () [10.1029/2018GL079345]
Cirrus clouds have a large influence on the Earth's climate and anthropogenic activities such as aviation can alter their properties. Besides the formation of contrails, indirect effects on naturally occurring cirrus like increased heterogeneous freezing due to exhaust soot particles are discussed in the literature. [...]
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2019-05-22
11:25
OpenAccess [FZJ-2019-03058] Journal Article
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Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016
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2019-05-22
11:18
OpenAccess [FZJ-2019-03057] Journal Article
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Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer
Water vapour convectively injected into the mid-latitude lowermost stratosphere could affect stratospheric ozone. The associated potential ozone loss process requires low temperatures together with elevated water vapour mixing ratios [...]
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2019-05-21
20:35
OpenAccess [FZJ-2019-03055] Contribution to a book

Modular Supercomputing Architecture: from Idea to Production
Contemporary High Performance Computing: From Petascale toward Exascale, Volume 3 FL, USA : CRC Press 3, : 3rd, 223-251 ()
This chapter describes a new heterogeneous architecture created at the Juelich Supercomputing Centre (JSC), its motivation and the development path that led to its final realization. Because it covers a broader scope involving several hardware platforms, the chapter is structured in the following way: first an overview of the Juelich Supercomputing Centre is given, to explain its context and background. [...]
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2019-05-21
08:53
OpenAccess [FZJ-2019-03040] Journal Article
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Modeling of H/D isotope-exchange in crystalline beryllium
A reaction-diffusion model with surface occupation dependent desorption [D. Matveev et al., Nucl. [...]
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2019-05-20
14:41
OpenAccess [FZJ-2019-03032] Journal Article
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Valence band structure and effective masses of GaN(10¯10)
The electronic structure of the clean and stoichiometric GaN(10¯10) cleavage surface is investigated in a comprehensive angle-resolved photoelectron spectroscopy study. A clear distinction between surface and bulk related features allows us to measure the dispersions of the occupied surface state band from the N dangling bonds as well as of the uppermost bulk valence bands and to extract the effective hole masses directly with high precision. [...]
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2019-05-20
09:25
OpenAccess [FZJ-2019-03024] Journal Article
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Dissolved organic matter characteristics of deciduous and coniferous forests with variable management: different at the source, aligned in the soil
Biogeosciences 16(7), 1411 - 1432 () [10.5194/bg-16-1411-2019]
Dissolved organic matter (DOM) is part of thebiogeochemical cycles of carbon and nutrients, carries pol-lutants and drives soil formation. The DOM concentrationand properties along the water flow path through forestecosystems depend on its sampling location and transfor-mation processes. [...]
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2019-05-16
08:00
OpenAccess [FZJ-2019-03008] Journal Article
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Modeling the Impact of Biopores on Root Growth and Root Water Uptake
Roots are known to use biopores as preferential growth pathways to overcome hard soil layers and access subsoil water resources. This study evaluates root–biopore interactions at the root-system scale under different soil physical and environmental conditions using a mechanistic simulation model and extensive experimental field data. [...]
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2019-05-15
13:54
OpenAccess [FZJ-2019-03005] Journal Article
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Sub-cycle dynamics in relativistic nanoplasma acceleration
The interaction of light with nanometer-sized solids provides the means of focusing optical radiation to sub-wavelength spatial scales with associated electric field enhancements offering new opportunities for multifaceted applications. We utilize collective effects in nanoplasmas with sub-two-cycle light pulses of extreme intensity to extend the waveform-dependent electron acceleration regime into the relativistic realm, by using 10**6 times higher intensity than previous works to date. [...]
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2019-05-14
14:05
OpenAccess [FZJ-2019-02998] Book/Dissertation / PhD Thesis

Resistive switching phenomena in stacks of binary transition metal oxides grown by atomic layer deposition
Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Schriften des Forschungszentrums Jülich Reihe Information / Information 57, 196 pp. () = Dissertation, RWTH Aachen University, 2019
Information technology is approaching the era of artificial intelligence. New computingarchitectures are required to cope with the huge amount of data that has to be processedin all types of cognitive applications. [...]
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