Results 121 to 130 of about 16,066,439 (292)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Slow focus sensor for the Keck I laser guide star adaptive optics system using focal plane wavefront sensing

Astronomy & Astrophysics
Context. Laser guide stars (LGSs) have been deployed for the last 20–30 years in ground-based astronomical telescopes to overcome the limited sky coverage of classical adaptive optics (AO) systems.
Salgueiro Rafael M., Correia Carlos M., Neichel Benoit, Bouchez Antonin, Wizinowich Peter, Surendran Avinash, Service Max, Fusco Thierry, Héritier Cédric Taïssir, Jouve Pierre   +9 more
doaj   +1 more source

Development of the high angular resolution 360° LiDAR based on scanning MEMS mirror. [PDF]

Sci Rep, 2023
Yang D, Liu Y, Chen Q, Chen M, Zhan S, Cheung NK, Chan HY, Wang Z, Li WJ.   +8 more
europepmc   +1 more source

High Angular Resolution Studies of Disks-the Millimetre [PDF]

Symposium - International Astronomical Union, 2004
I briefly review progress in high angular resolution observations of disks at millimetre wavelengths, with a focus on dust continuum observations of the disks surrounding low mass pre-main-sequence stars. I summarize the utility of observations at millimetre wavelengths, where dust emission is largely optically thin, and I touch on several recent ...
openaire   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

High angular resolution susceptibility imaging and estimation of fiber orientation distribution functions in primate brain. [PDF]

Neuroimage, 2023
Gkotsoulias DG, Müller R, Jäger C, Schlumm T, Mildner T, Eichner C, Pampel A, Jaffe J, Gräßle T, Alsleben N, Chen J, Crockford C, Wittig R, Liu C, Möller HE.   +14 more
europepmc   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

Advanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour, Prithwish Tarafder, Anton Wiberg, Huanyu Li, Johan Moverare, Patrick Lambrix   +5 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

A millimeter-wave automotive radar with high angular resolution for identification of closely spaced on-road obstacles. [PDF]

Sci Rep, 2023
Sun R, Suzuki K, Owada Y, Takeda S, Umehira M, Wang X, Kuroda H.   +6 more
europepmc   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source