Results 71 to 80 of about 34,781 (302)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

The Future of Astrometry in Space

Frontiers in Astronomy and Space Sciences, 2018
This contribution focuses on the importance of astrometry and on its future developments. Over the centuries astrometry has greatly contributed to the advance of the knowledge of the Universe.
Antonella Vallenari
doaj   +1 more source

Proper motions of the HH1 jet

, 2017
12 pages, 8 ...
Raga, A.C., Reipurth, B., Esquivel, A., Castellanos-Ramírez, A., Velázquez, P.F., Hernández Martínez, L., Rodríguez-González, A., Rechy-García, J.S., Estrella-Trujillo, D., Bally, J., González-Gómez, D., Riera, A.   +11 more
openaire   +3 more sources

Proper motions in NGC6681 globular cluster

, 2016
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'HST-GeMS proper motions in the globular cluster NGC6681.' (bibcode: 2016A&A...595L ...
McConnachie, A., Veran, J.-P., INAF - Osservatorio di Astrofisica e Scienza Dello Spazio di Bologna, Andersen, D., Stetson, P. B., Herzberg Astronomy and Astrophysics, National Research Council Canada, Dipartimento di Fisica, Università di Roma Tor Vergata, Bellini, A., Bono, G., University of Victoria, INAF Osservatorio Astronomico di Bologna, Turri, P., Space Telescope Science Institute, Massari, Davide, Tolstoy, Eline, INAF - Osservatorio Astronomico di Roma, Fiorentino, G., Astronomy   +17 more
core   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

HST Proper Motions of Andromeda V and Andromeda VI

The Astrophysical Journal
We measure the absolute proper motions of Andromeda V (And V) and Andromeda VI/Pegasus (And VI) dwarf galaxies, satellites of M31 located near its galactic plane.
Dana I. Casetti-Dinescu, Marcel S. Pawlowski, Terrence M. Girard, Kosuke Jamie Kanehisa, Max Martone, Alexander Petroski   +5 more
doaj   +1 more source

Measuring the distance of VX sagittarii with SiO maser proper motions

, 2007
We report on 43 GHz v=1, J=1-0 SiO maser proper motions in the circurnstellar envelope of the M-type semi-regular variable star VX Sgr, observed by Very Long Baseline Array (VLBA) at 3 epochs during 1999 April-May.
Chen, Xi, Xu, Ye, Shen, Zhi-Qiang
core  

Gaia proper motions of 7 UFD galaxies

, 2018
VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'With and without spectroscopy: Gaia DR2 proper motions of seven ultra-faint dwarf galaxies.' (bibcode: 2018A&A...620A ...
Massari, Davide, Helmi, Amina, Astronomy
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Hubble Space Telescope proper motions of Large Magellanic Cloud star clusters

Astronomy & Astrophysics
In this paper, we explore the kinematic properties of a sample of 19 young (
Niederhofer F., Cullinane L., Massari D., Bastian N., Bellini A., Aguado-Agelet F., Cassisi S., Erkal D., Libralato M., Kacharov N., Cabrera-Ziri I., Ceccarelli E., Cioni M.-R. L., Dresbach F., Häberle M., Martocchia S., Saracino S.   +16 more
doaj   +1 more source