Results 1 to 10 of about 9,763,566 (182)

Electronic transitions and dielectric function tensor of a YMnO3 single crystal in the NIR-VUV spectral range [PDF]

RSC Advances, 2014
We present optical properties in the near-infrared to vacuum-ultraviolet spectral range of hexagonal YMnO3. The high-quality (110)-oriented bulk single crystal was grown by the optical floating zone technique.
Rüdiger Schmidt-Grund, Steffen Richter, Stefan G. Ebbinghaus, Michael Lorenz, Carsten Bundesmann, Marius Grundmann   +5 more
doaj   +1 more source

Tectonometamorphic evolution of a subduction plate interface at the base of the Mirdita Ophiolite (Bajram Curri, northeastern Albania)

Swiss Journal of Geosciences
The Western Vardar ophiolite, a thrust sheet of oceanic crust and mantle obducted onto the Adriatic passive margin in the Late Jurassic, crops out along the entire Balkan Peninsula.
Madeline Richter, Kilian Pollok, Kujtim Onuzi, Kamil Ustaszewski   +3 more
doaj   +1 more source

Effect of the Content and Ordering of the sp² Free Carbon Phase on the Charge Carrier Transport in Polymer-Derived Silicon Oxycarbides

Molecules, 2020
The present work elaborates on the correlation between the amount and ordering of the free carbon phase in silicon oxycarbides and their charge carrier transport behavior. Thus, silicon oxycarbides possessing free carbon contents from 0 to ca.
Felix Rosenburg, Benjamin Balke, Norbert Nicoloso, Ralf Riedel, Emanuel Ionescu   +4 more
doaj   +1 more source

A workflow for building and calibrating 3-D geomechanical models &ndash a case study for a gas reservoir in the North German Basin [PDF]

Solid Earth, 2013
The optimal use of conventional and unconventional hydrocarbon reservoirs depends, amongst other things, on the local tectonic stress field. For example, wellbore stability, orientation of hydraulically induced fractures and – especially in fractured ...
K. Fischer, A. Henk
doaj   +1 more source

A first high-resolution carbon isotope stratigraphy from the Boreal (NW Germany) for the Berriasian to Coniacian interval—implications for the timing of the Aptian–Albian boundary

Frontiers in Earth Science, 2023
High-amplitude changes in sedimentary δ13C characterize the Cretaceous system and have been proven useful for supra-regional chemostratigraphic correlation.
André Bornemann, André Bornemann, Jochen Erbacher, Jochen Erbacher, Martin Blumenberg, Silke Voigt   +5 more
doaj   +1 more source

Building 1D and 3D Mechanical Earth Models for Underground Gas Storage—A Case Study from the Molasse Basin, Southern Germany

Energies, 2020
Hydromechanical models of gas storage in porous media provide valuable information for various applications ranging from the prediction of ground surface displacements to the determination of maximum reservoir pressure and storage capacity to maintain ...
Muhammad Zain-Ul-Abedin, Andreas Henk
doaj   +1 more source

The dentition of the Late Jurassic dwarf sauropod Europasaurus holgeri from northern Germany: ontogeny, function, and implications for a rhamphotheca-like structure in Sauropoda [PDF]

PeerJ
The basal macronarian sauropod Europasaurus holgeri is known only from the Late Jurassic of the Langenberg Quarry near Goslar, Lower Saxony, Germany. Europasaurus has been identified as an insular dwarf and shows a clear resemblance to Camarasaurus and ...
Verena Régent, Kayleigh Wiersma-Weyand, Oliver Wings, Nils Knötschke, P. Martin Sander   +4 more
doaj   +2 more sources

Elastic and Frictional Properties of Fault Zones in Reservoir-Scale Hydro-Mechanical Models—A Sensitivity Study

Energies, 2020
The proper representation of faults in coupled hydro-mechanical reservoir models is challenged, among others, by the difference between the small-scale heterogeneity of fault zones observed in nature and the large size of the calculation cells in ...
Torben Treffeisen, Andreas Henk
doaj   +1 more source

Ordering of tetrahedral and octahedral layers in synthetic lepidolites and Li-muscovites: two-dimensional {¹H} → ²⁹Si ∕ ²⁷Al CPMAS HETCOR and {¹⁹F} → ²⁹Si ∕ ²⁷Al CPMAS HETCOR spectroscopy [PDF]

European Journal of Mineralogy
Cationic ordering in the octahedral and tetrahedral sheets of synthetic lepidolites with composition K(LixAl3−x)[Si2xAl4−2xO10](OH)yF2−y and Li-muscovites with K(LixAl2-x/3□1-2x/3)[Si3AlO10](OH)yF2−y has been investigated using two-dimensional (2-D) {1H ...
M. Fechtelkord, L. Sulcek
doaj   +1 more source

MRMinerals and MineralTD: Machine‐Readable Mineral Formula and Compositions Data Set for Data‐Driven Research

Geoscience Data Journal
Artificial intelligence (AI) is being increasingly applied in the geosciences, particularly in fields like mineralogy, where it supports tasks such as mineral classification, automated thin‐section image analysis, or mineral exploration targeting.
Tamanna, Dominik C. Hezel, Horst R. Marschall   +2 more
doaj   +1 more source