Results 251 to 260 of about 409,343 (365)

Stellar winds from massive stars - What are the REAL mass-loss rates? [PDF]

, 2006
J. Puls, N. Markova, Salvatore Scuderi
openalex   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

Advanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo, Chiara Morano, Leonardo Pagnotta, Luigi Bruno   +3 more
wiley   +1 more source

Pulsation-driven Mass Loss from Massive Stars behind Stellar Mergers in Metal-poor Dense Clusters

, 2020
Daisuke Nakauchi, Kohei Inayoshi, Kazuyuki Omukai   +2 more
openalex   +1 more source

Mass‐Loss Rates and Stellar Wind Momenta of A‐Supergiants in M31: First Results from the Keck HIRES Spectrograph [PDF]

, 1997
James K. McCarthy, Rolf‐Peter Kudritzki, D. J. Lennon, Kim A. Venn, J. Puls   +4 more
openalex   +1 more source

High‐Entropy Alloy Design Toward Cobalt Substitution for High Hardness and Low Wear Rate Using X–Cr–Fe–Mn–Ni System

Advanced Engineering Materials, EarlyView.
This study explores the replacement of cobalt using the high‐entropy alloy design strategy for wear‐resistant components operating at high temperatures. Starting from the Cantor alloy, cobalt is substituted with Cu, Al, V, or Mo. Metallurgical and tribological analyses reveal that aluminum, vanadium, and molybdenum effectively strengthen the developed ...
Rafaël Jénot, Laurent Peltier, Fodil Meraghni, Mathieu Marquer, Oriane Baulin, Clotilde Macke‐Bart   +5 more
wiley   +1 more source

The GD-1 Stellar Stream Perturber as a Core-collapsed Self-interacting Dark Matter Halo. [PDF]

Astrophys J Lett
Zhang X, Yu HB, Yang D, Nadler EO.
europepmc   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

Exploring the sub-Neptune frontier with JWST. [PDF]

Proc Natl Acad Sci U S A
Madhusudhan N, Holmberg M, Constantinou S, Cooke GJ.   +3 more
europepmc   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

The ²²Ne( α ,n)²⁵Mg reaction - state of the art, astrophysics, and perspectives. [PDF]

Eur Phys J A Hadron Nucl
Best A, Adsley P, Amberger R, Battino U, Chillery T, La Cognata M, deBoer RJ, Mercogliano D, Ota S, Rapagnani D, Sidhu RS, Spartà R, Tumino A, Wiescher M.   +13 more
europepmc   +1 more source