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Vortex-Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere
(
- Geophysical Research Letters
, 2019)
Micron-sized HNO3-containing particles in polar stratospheric clouds are known to denitrify the polar winter stratosphere and support chemical ozone loss. We show that populations of nitric acid trihydrate (NAT) particles ...
Quartz Cementation in Polycrystalline Sandstone: Insights From Phase-Field Simulations
(
- Journal of Geophysical Research: Solid Earth
, 2020)
Present work investigates the dynamics of polycrystalline quartz cement growth in sandstone using a multiphase-field model. First, the model parameters corresponding to common reservoir temperature and pressure conditions ...
Hydrothermalsynthesen von PbS-ZnS und FeS-ZnS
(Aachen, Technische Hochschule, Fakultät für Bergbau und Hüttenwesen, 1963)
Der Anlaß für die in dieser Arbeit unternommenen hydrothermalsynthetischen Versuche war die auf sulfidischen Bleizinkerzlagerstätten allgemein beobachtete Erscheinung, daß Zinkblende vor Bleiglanz auskristallisiert. Die ...
Fast fitting of reflectivity data of growing thin films using neural networks
(
- Journal of Applied Crystallography
, 2019-11-08)
X‐ray reflectivity (XRR) is a powerful and popular scattering technique that can give valuable insight into the growth behavior of thin films. This study shows how a simple artificial neural network model can be used to ...
X-ray diffraction using focused-ion-beam-prepared single crystals
(
- Journal of Applied Crystallography
, 2020)
High-quality single-crystal X-ray diffraction measurements are a prerequisite for obtaining precise and reliable structure data and electron densities. The single crystal should therefore fulfill several conditions, of ...
Manual measurement of angles in backscattered and transmission Kikuchi diffraction patterns
(
- Journal of Applied Crystallography
, 2020)
A historical tool for crystallographic analysis is provided by the Hilton net, which can be used for manually surveying the crystal lattice as it is manifested by the Kikuchi bands in a gnomonic projection. For a quantitative ...
Exploring the Iron-Binding Potential of the Ocean Using a Combined pH and DOC Parameterization
(
- Global Biogeochemical Cycles
, 2020)
The major part of dissolved iron (DFe) in seawater is bound to organic matter, which prevents iron from adsorptive removal by sinking particles and essentially regulates the residence time of DFe and its availability for ...
Chemical Weathering of Loess and Its Contribution to Global Alkalinity Fluxes to the Coastal Zone During the Last Glacial Maximum, Mid-Holocene, and Present
(
- Geochemistry, Geophysics, Geosystems
, 2020)
Loess sediments are windblown silt deposits with, in general, a carbonate grain content of up to 30%. While regionally, loess was reported to increase weathering fluxes substantially, the influence on global weathering ...
ROBL‐II at ESRF: a synchrotron toolbox for actinide research
(
- Journal of Synchrotron Radiation
, 2020-11-23)
ROBL‐II provides four different experimental stations to investigate actinide and other alpha‐ and beta‐emitting radionuclides at the new EBS storage ring of ESRF within an energy range of 3 to 35 keV. The XAFS station ...
ATSAS 3.0: expanded functionality and new tools for small‐angle scattering data analysis
(
- Journal of Applied Crystallography
, 2020-12-02)
The ATSAS software suite encompasses a number of programs for the processing, visualization, analysis and modelling of small‐angle scattering data, with a focus on the data measured from biological macromolecules. Here, ...