Results 61 to 70 of about 207,078 (313)

Study on Plasma-Chemical Mode of Pulsed Coaxial Dielectric Barrier Discharge Plasma Based on Mass Spectrometry

Aerospace
This study systematically investigates the dynamic evolution of chemical regimes in pulsed coaxial dielectric barrier discharge (DBD) plasma under atmospheric pressure using mass spectrometry.
Diankai Wang, Yongzan Zheng, Baosheng Du, Jianhui Han, Ming Wen, Tengfei Zhang   +5 more
doaj   +1 more source

Space propulsion [PDF]

Lewis Research Center is developing broad-based new technologies for space chemical engines to satisfy long-term needs of ETO launch vehicles and other vehicles operating in and beyond Earth orbit.
Kazaroff, John M.
core   +1 more source

High‐Resolution and Real‐Time In Situ Generation of Cellular Spheroids by Laser‐Assisted Bioprinting for Guided Microvascularization

Advanced Functional Materials, EarlyView.
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin, Katharina Wulz, Clotilde Jugie, Marie‐Laure Stachowicz, Shane Fennell, Aurélien Mazet, Malou Lea, Nathalie Dusserre, Jean‐Christophe Fricain, Hugo Oliveira   +9 more
wiley   +1 more source

Shuttle orbiter with telescoping main propulsion unit and payload [PDF]

, 1993
An improved Space Shuttle with variable internal volume is provided. The Space Shuttle Orbiter includes a telescoping main propulsion unit. This main propulsion unit contains the main rocket engines and fuel tanks and telescopes into the Space Shuttle. A
Macconochie, Ian O.
core   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Effects of Oxidation on the Cracking Behavior of Additive-Manufactured Cobalt-Based Alloys Under Thermal Fatigue Conditions

Metals
Stellite alloys are widely used in the aerospace field owing to their excellent high-temperature strength and thermal fatigue resistance. However, with the rapid development of the aerospace industry, there is an urgent demand to further enhance the ...
Xudong Yang, Zixian Jiao, Jiayue Xu, Xinyu Zhang, Yi Xie   +4 more
doaj   +1 more source

Advanced onboard propulsion benefits and status [PDF]

Future commercial space systems may include geosynchronous-orbit communication satellites; Earth-observing satellites in polar, sun-synchronous orbits; and tended low-earth-orbit platforms.
Byers, David C.
core   +1 more source

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

Advanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot, Andrea Cosola, Eléonore Aïdonidis, Jérôme Fresnais, Clément Sanchez, Philippe Belleville, Giancarlo Rizza, Marco Faustini   +7 more
wiley   +1 more source

The Pathfinder Chemical Transfer Propulsion program [PDF]

Pathfinder is a research and technology initiative by the National Aeronautics and Space Administration (NASA) intended to strengthen the technology base of the United States civil space program in preparation for future space exploration missions ...
Berkopec, Frank D., Hannum, Ned P., Zurawski, Robert L.   +2 more
core   +4 more sources

Exploring the notion of space coupling propulsion [PDF]

All existing methods of space propulsion are based on expelling a reaction mass (propellant) to induce motion. Alternatively, 'space coupling propulsion' refers to speculations about reacting with space-time itself to generate propulsive forces ...
Millis, Marc G.
core   +1 more source