Tootfinder

Excitons, Optical Spectra, and Electronic Properties of Semiconducting Hf-based MXenes
Nilesh Kumar, Miroslav Kolos, Sitangshu Bhattacharya, Franti\v{s}ek Karlick\'y
https://arxiv.org/abs/2404.01797

Excitons, Optical Spectra, and Electronic Properties of Semiconducting Hf-based MXenes
Semiconducting MXenes are an intriguing two-dimensional (2D) material class with promising electronic and optoelectronic properties. Here, we focused on recently prepared Hf-based MXenes, namely Hf$_3$C$_2$O$_2$ and Hf$_2$CO$_2$. Using the first-principles calculation and excited state corrections, we proved its dynamical stability, reconciled its semiconducting behavior, and obtained fundamental gaps by the many-body GW method (indirect 1.1 eV and 2.2 eV, respectively, direct 1.4 eV and 3.5 eV…

"#Akkus sollen in Zukunft kein #Lithium mehr enthalten, das immer knapper wird. Künstliche Intelligenz sucht blitzschnell nach Materialien für den Ersatz
Mithilfe von #KI wollen sich

Für Batterien ohne Lithium sucht künstliche Intelligenz neue Materialien
Mithilfe von KI wollen sich Materialforscher rascher im Dschungel potenzieller Werkstoffe orientieren. Besonders flink gelang neulich die Suche nach einer Alternative für Lithium in Batterien. Doch die Sache hat einen Haken.

Interpolation-based immersogeometric analysis methods for multi-material and multi-physics problems
Jennifer E. Fromm, Nils Wunsch, Kurt Maute, John A. Evans, Jiun-Shyan Chen
https://arxiv.org/abs/2402.15937

Interpolation-based immersogeometric analysis methods for multi-material and multi-physics problems
Immersed boundary methods are high-order accurate computational tools used to model geometrically complex problems in computational mechanics. While traditional finite element methods require the construction of high-quality boundary-fitted meshes, immersed boundary methods instead embed the computational domain in a background grid. Interpolation-based immersed boundary methods augment existing finite element software to non-invasively implement immersed boundary capabilities through extractio…

Interpolation-based immersogeometric analysis methods for multi-material and multi-physics problems
Jennifer E. Fromm, Nils Wunsch, Kurt Maute, John A. Evans, Jiun-Shyan Chen
https://arxiv.org/abs/2402.15937

Interpolation-based immersogeometric analysis methods for multi-material and multi-physics problems
Immersed boundary methods are high-order accurate computational tools used to model geometrically complex problems in computational mechanics. While traditional finite element methods require the construction of high-quality boundary-fitted meshes, immersed boundary methods instead embed the computational domain in a background grid. Interpolation-based immersed boundary methods augment existing finite element software to non-invasively implement immersed boundary capabilities through extractio…

Measurement of the thermal accommodation coefficient of helium on a crystalline silicon surface at low-temperatures
Alexander Franke, Nils S\"ultmann, Christoph Reinhardt, Sandy Croatto, J\"orn Schaffran, Hossein Masalehdan, Axel Lindner, Roman Schnabel
https://arxiv.org/abs/2402.11977

Measurement of the thermal accommodation coefficient of helium on a crystalline silicon surface at low-temperatures
Next-generation gravitational wave observatories are expected to use cryogenically cooled, pendulum-suspended 200 kg test mass mirrors from a crystalline material such as crystalline silicon. During operation of the observatories, these mirrors undergo heating due to the absorption of laser radiation of up to a watt. Low noise cooling techniques need to be developed. Low-pressure helium exchange gas at 5 K might contribute to the challenging task. Here, we report the measurement of the helium a…

Deep Few-view High-resolution Photon-counting Extremity CT at Halved Dose for a Clinical Trial
Mengzhou Li, Chuang Niu, Ge Wang, Maya R Amma, Krishna M Chapagain, Stefan Gabrielson, Andrew Li, Kevin Jonker, Niels de Ruiter, Jennifer A Clark, Phil Butler, Anthony Butler, Hengyong Yu
https://arxiv.org/abs/2403.12331

Deep Few-view High-resolution Photon-counting Extremity CT at Halved Dose for a Clinical Trial
The latest X-ray photon-counting computed tomography (PCCT) for extremity allows multi-energy high-resolution (HR) imaging for tissue characterization and material decomposition. However, both radiation dose and imaging speed need improvement for contrast-enhanced and other studies. Despite the success of deep learning methods for 2D few-view reconstruction, applying them to HR volumetric reconstruction of extremity scans for clinical diagnosis has been limited due to GPU memory constraints, tr…