Publications by authors named "H E Menke"
Article Synopsis
- Quasi two-dimensional organic superconductors exhibit complex behaviors due to strong electron correlations, including unconventional superconductivity, metal-insulator transitions, and unique magnetic properties.
- The study uses the Hubbard model on an anisotropic triangular lattice to analyze these compounds, employing advanced quantum embedding techniques that respect the lattice's symmetry.
- Findings indicate a transition from Fermi liquid metal to Mott insulator linked to a pseudogap, with a distinctive pattern in the Fermi surface that inspires further experimental research, aligning well with the existing phase diagrams of κ-BEDT organics.
The new world was considered free of leprosy before the arrival of Europeans. In Suriname, historical migration routes suggest that leprosy could have been introduced from West Africa by the slave trade, from Asia by indentured workers, from Europe by the colonizers, and more recently by Brazilian gold miners. Previous molecular studies on environmental and ancient samples suggested a high variability of the strains circulating in the country, possibly resulting from the various migration waves.
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- The traditional model of solid dissolution in porous media describes three main dissolution patterns: uniform, compact, and wormhole, based on the interplay of reaction rate, flow, and diffusion.
- This study uses numerical simulations to explore how pore structure changes during acid injection, leading to the identification of a new dissolution regime called channeling, where rapid flow paths are preferentially enlarged.
- Channeling creates significant changes in permeability with minimal porosity changes, suggesting that current models of dissolution must be revised to include this regime for better predictions in fields like geothermal energy and carbon storage.
Background: Research is an integral part of academic medicine. In plastic surgery, it sets the course for innovations in the specialty. The purpose of this study is to present the research performance of plastic surgeons in Germany for the period 2021/2022 and to compare it with previous periods.
View Article and Find Full Text PDFHypothesis: Underground hydrogen (H) storage is a potentially viable solution for large-scale cyclic H storage; however, the behavior of H at subsurface pressure and temperature conditions is poorly known. This work investigates if the pore-scale displacement processes in H-brine systems in a porous sandstone can be sufficiently well defined to enable effective and economic storage operations. In particular, this study investigates trapping, dissolution, and wettability of H-brine systems at the pore-scale, at conditions that are realistic for subsurface H storage.
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