Results 91 to 100 of about 3,000,650 (241)

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

HUMANITY, FROM PEACEFUL EXPLORATION OF OUTER SPACE TO ITS CONQUEST THROUGH SPACE FORCES, ANTI-SATELLITE WEAPONS AND STATE OF THE ART SPACE TECHNOLOGIES [PDF]

Annals: Series on Military Sciences, 2019
For a long period of time, usage of outer space for humankind was limited to observing outer space constellations, navigation and prediction of meteorological phenomena.
Valentin BECHERU, Adrian STAN
doaj  

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source

The exclusive making of space law

Leiden Journal of International Law
The commons are defined by non-excludability – the idea that none can exclude another from access or use. Likewise, space lawyers portray their discipline’s origin story as uniquely egalitarian and inclusive, in part because of how it was made.
Cris van Eijk
doaj   +1 more source

Investigating the Effective Numerical Solution Parameters in Calculating the Roll Damping Coefficient [PDF]

فصلنامه علوم و فناوری فضایی, 2017
The contribution of injured person in creating or worsening the damage caused by space objects is important in determining the international liability for those.
Seyyed Ghasem Zamani, vahid bazzar
doaj  

United States Space Law: Historical Evolution and Legislative Framework [PDF]

Advanced Space Law
In this article, the evolution of the United States’ national legal framework governing space activities is examined, highlighting its development under the influence of technological innovations and market transformations.
Mariia Semenchuk
doaj   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +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

From Space to the Battlefield: Ethical and Legal Aspects of the Use of Satellite Technologies in the Russian-Ukrainian War

Философия и космология
The integration of satellite technologies into the Russo-Ukrainian conflict has redefined the strategic role of space-based assets in contemporary warfare, revealing their dual-use nature and the associated legal, ethical, and strategic challenges.
Inesa Kostenko, Andrii Manzhula
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source