Results 71 to 80 of about 14,987 (302)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Supercell Thunderstorm Updraft Accelerations During the Evening Transition [PDF]

, 2022
The evolution of supercell thunderstorm environments during the evening transition provides mechanisms that would seemingly offer competing contributions to updraft accelerations: low-level cooling and associated stabilization detrimental to buoyancy ...
Bremenkamp, Marc
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Cascadia Subduction Zone Earthquake Vertical Ground Acceleration Investigation and Potential Impact on Bridges in the Pacific Northwest

, 2022
The effects of vertical ground accelerations during subduction zone earthquakes currently are not sufficiently understood. There are numerous case studies and evidence that effects of vertical ground accelerations can significantly impact the performance
Bassil, Rachel Caroline
core   +1 more source

Accelerated Methods with Compression for Horizontal and Vertical Federated Learning

Journal of Optimization Theory and Applications
Distributed optimization algorithms have emerged as a superior approaches for solving machine learning problems. To accommodate the diverse ways in which data can be stored across devices, these methods must be adaptable to a wide range of situations.
Sergey Stanko, Timur Karimullin, Aleksandr Beznosikov, Alexander Gasnikov   +3 more
openaire   +2 more sources

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Community accelerations in the vertical direction for three castor models.

, 2020
Out of the two users of Hopehaven wheelchairs, data from the user with higher accelerations is displayed and was selected for analysis to represent the worst-case scenario.
Norman Reese (8282580), Anand Mhatre (8282577), Jon Pearlman (4982939)   +2 more
core   +1 more source

Unique Finite Element Modelling of Human Body Inside Accelerating Car to Predict Accelerations and Frequencies at Different Human Segments

Applied Sciences, 2020
The comfort level of the human occupant inside a dynamic vehicle is dependent on the level of vibration generated inside the different segments of the human body.
Purnendu Mondal, Subramaniam Arunachalam
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

On the vertigo due to static magnetic fields. [PDF]

, 2013
Vertigo is sometimes experienced in and around MRI scanners. Mechanisms involving stimulation of the vestibular system by movement in magnetic fields or magnetic field spatial gradients have been proposed.
Antunes, Andre, Paul M Glover, Day, Brian L, Mian, OS, Day, BL, Andre Antunes, Li, Y, Antunes, A, Mian, Omar S; id_orcid, Li, Yan, Glover, Paul M, Glover, PM, Omar S Mian, Brian L Day, Yan Li   +14 more
core   +1 more source