Results 71 to 80 of about 22,902 (289)

Oxygen production by glow discharge in simulated Martian atmospheric conditions

Earth and Planetary Physics
Oxygen (O2) is essential for life support and rocket propulsion in Mars exploration missions, and in situ oxygen production from the Martian atmosphere is of profound scientific and engineering significance. In this article, we propose a novel method for
XianYang Sun, GuangKuo Liu, ChengXu Zhang, LuLu An, XianZe Ao, NaiTao Yang, XiuXia Meng, ZhiWei Xue, ZhongChen Wu   +8 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Effect of TiO₂ on the Microstructure and Flexural Strength of Lunar Regolith Simulant

Crystals
Lunar regolith is the preferred material for lunar base construction using in situ resource utilization technology. The TiO2 variations in lunar regolith collected from different locations significantly impact its suitability as a construction material ...
Junhao Chen, Haoming Chen, Zhe Zhao, Xiao Zong   +3 more
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Manufacturing in Space: An Operations Management Nightmare

Journal of Aerospace Technology and Management
Operations management (OM) involves the activities related to producing goods by transforming input into output. Operations managers typically organize the design of goods and manage the processes to ensure a quality product.
Robert Oliver Walton
doaj  

Multi-Input CNN for Vision-Based In Situ Analysis of Extraterrestrial Surface Composition

Computer Assisted Methods in Engineering and Science
Earth’s natural resources are finite, which is why engineers and scientists are increasingly directing their attention to the extraction of materials from celestial bodies.
Kacper MARCINIAK, Michał GRZESIAK, Igor ZAWORSKI, Dominik PAWLISZEWSKI, Dominika ZYGARLICKA, Michał WNUK, Adrian ZAKRZEWSKI   +6 more
doaj   +1 more source

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

Experimental Evaluation of Lunar Regolith Settlement Caused by Ice Extraction

Aerospace
Water resources are essential to human exploration in deep space or the establishment of long-term lunar habitation. Ice discovered on the Moon may be useful in future missions to the lunar surface, necessitating the consideration of in situ resource ...
Zheng Gong, Nicholas Barnett, Jangguen Lee, Hyunwoo Jin, Byunghyun Ryu, Taeyoung Ko, Joung Oh, Andrew Dempster, Serkan Saydam   +8 more
doaj   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source