Results 41 to 50 of about 5,766 (246)

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Relativistic Scattering in the Funnel of Cygnus X-3

The Astrophysical Journal
Cygnus X-3 presents significant challenges to standard accretion models. Recent polarimetric observations by X-ray Polarimetry Explorer reveal high polarization degrees in the hard state (∼23%) and unexpectedly significant polarization in the soft state (
Suraj K. Chaurasia, Ranjeev Misra, Amit Pathak   +2 more
doaj   +1 more source

Polarization ray tracing and polarization aberration compensation in reflective, astronomical telescopes [PDF]

Optical Modeling and Performance Predictions X, 2018
Assessing and optimizing polarization performance in the context of ray-based optical design can be challenging. We describe an approach to this problem that decouples polarization effects from optical system geometry for reflective systems.
Derek Sabatke, Matthew R. Bolcar, John S. Knight   +2 more
openaire   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Polarization Independent Achromatic Meta-Lens Designed for the Terahertz Domain

Frontiers in Physics, 2020
In recent years, metasurface-based focusing elements have gradually become an indispensable type of terahertz lenses. However, the meta-lens often suffers from chromatic aberration due to the intrinsic dispersion of each element, especially in the ...
Yufei Gao, Jianqiang Gu, Ridong Jia, Zhen Tian, Chunmei Ouyang, Jiaguang Han, Weili Zhang, Weili Zhang   +7 more
doaj   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

Foundational Machine‐Learning Interatomic Potential for Simulating Chemically Complex Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
We apply a foundational machine‐learning interatomic potential based on the graph atomic cluster expansion (GRACE) to simulate the commercial Ni‐based single‐crystal superalloy CMSX‐4. Hybrid Monte‐Carlo/molecular dynamics sampling resolves short‐range order in the γ phase and L12 sublattice occupancies in the γ’ phase and connects them to stacking ...
Aditya Vishwakarma, Sarath Menon, Fritz Körmann, Thomas Hammerschmidt, Ralf Drautz   +4 more
wiley   +1 more source

Achromatic diffractive liquid-crystal optics for virtual reality displays

Light: Science & Applications, 2023
Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics.
Zhenyi Luo, Yannanqi Li, John Semmen, Yi Rao, Shin-Tson Wu   +4 more
doaj   +1 more source

Research of the polarization aberration on Smith prism

Physics Procedia, 2011
AbstractUsing the law of refraction and reflection of vector form to trace the light direction of propagation in the Smith prism. Be based on it, get the reflection phase shifter δs and δp on every planes, consequently obtain virtue matrix using Jones vector. The distribution of the polarization state of emergent light wave from Smith prism is analyzed
Jinjun, Lu, Qiao, Yuan, Xueping, Sun, Xiaochuan, Guo   +3 more
openaire   +1 more source

Polarization aberrations of electrically tunable liquid crystal mirrors

Optics Express, 2020
Curved mirrors are able to fold optical paths and play important roles in compact optical systems in general. In this paper, we investigate the polarization aberrations of electrically tunable liquid crystal (LC) mirrors with two kinds of configurations (flat and curved ones). The LC mirrors exhibit spatially-continuous tunable wavefronts. The detailed
Yu-Jen Wang, Yi-Hsin Lin, Ozan Cakmakci, Victor Reshetnyak   +3 more
openaire   +2 more sources