Results 51 to 60 of about 10,328 (260)

Monolithically Integrated VCSEL Beam Scanner with Slow-Light Amplifiers for Solid-State LiDAR

Photonics
The rapidly increasing demand for compact, high-performance beam-steering solutions in LiDAR systems has driven substantial advances in vertical-cavity surface-emitting laser (VCSEL) technologies.
Ahmed Hassan, Xiaodong Gu, Fumio Koyama
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Non-mechanical steering of the optical beam in spectral-domain optical coherence tomography

Scientific Reports
We demonstrate in a proof-of-concept experiment spectral-domain optical coherence tomography where steering of the optical beam that probes the sample in a transverse scan does not make use of any mechanical element.
Daniel F. Urrego, Gerard J. Machado, Juan P. Torres   +2 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source

Beam steerable MIMO antenna based on conformal passive reflective metasurface for 5G millimeter wave applications

Scientific Reports
A conformal reflective metasurface fed by a dual-band multiple-input multiple-output (MIMO) antenna is proposed for low-cost beam steering applications in 5G Millimeter-wave frequency bands.
Bilal Tariq Malik, Shahid Khan, Slawomir Koziel   +2 more
doaj   +1 more source

Joint Mechanical-Electrical Beam Steering for Maritime-LEO Communications: Optimizing Performance Through ESPRIT-Based DOA Estimation

IEEE Open Journal of the Communications Society
Non-terrestrial networks, particularly satellite communications, provide ubiquitous connectivity in next-generation wireless systems. As signals from terrestrial networks cannot reach vessels far from shore, satellite communication is critical in ...
Chun-Tai Liu, Jen-Yi Pan
doaj   +1 more source

Design of a terahertz beam-steering photomixer array

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017
This paper presents the design of a beam-steering photomixer array for terahertz applications. The design consists of the combination of two identical triple stub circuit (TSC) topologies that allows the impedance tuning and insertion phase control simultaneously.
Celik, Suleyman Burak, Demir, Kazim, Sahin, Asaf Behzat, Unlu, Mehmet   +3 more
openaire   +3 more sources

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Experimental demonstration of dual-polarization multiplexed optical phased array empowered by inverse design

Nanophotonics
This paper presents a dual-polarization multiplexed optical phased array (OPA) implemented on a 220 nm silicon-on-insulator (SOI) platform, enabling continuous beam steering across TE and TM modes.
Kim Jae-Yong, Lee Seungsoo, Hong Seokjin, Neseli Berkay, Choi Seungyoon, Park Hyo-Hoon, Kurt Hamza   +6 more
doaj   +1 more source