Results 51 to 60 of about 38,780 (255)
Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
AerospaceEnergetic co-particles have been proven effective in balancing high-energy and safety performance, which might be used as insensitive oxidizers in solid propellants.
Zhihua Xue +4 more
doaj +1 more source
On the politics of movement: Borderscapes, choreopolicing and choreopolitics
Transactions of the Institute of British Geographers, EarlyView.Short Abstract The paper introduces choreography as a novel tool of analysis for investigating how movement shapes and is shaped by the apparatus of territorial security. It examines how dance choreography can intervene in security imperatives and enact embodied transgression.
Charlotte Veal
wiley +1 more source
AerospaceThe energy release process of the Mg-based hydroreactive fuels directly affects the performance of water ramjet engines, and the burning rate is one of the key parameters of the Mg-based hydroreactive fuels.
Shiyao Shao +4 more
doaj +1 more source
Research on Ablation Device Suitable for Thermal Protection System of Solid Rocket Ramjet
AerospaceIn solid rocket propulsion systems, overload effects induced by aircraft maneuvers can lead to gas accumulation in the afterburning chamber, resulting in severe localized ablation of thermal insulation layers and significantly compromising overall ...
Jiming Cheng +5 more
doaj +1 more source
Maintaining technical excellence requires a national plan [PDF]
To meet the challenge of technical excellence, AIA established a rocket propulsion committee to develop the National Rocket Propulsion Strategic Plan. Developing such a plan required a broad spectrum of experience and disciplines. The Strategic Plan team
Davidson, T. F.
core +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
Left to Live and Die: Resource Security and the Biopolitics of Land Stockpiling in China
Antipode, Volume 57, Issue 6, Page 2103-2123, November 2025.Abstract Beginning in 2007, the Chinese state used liberalising policy and funding to encourage the expansion of large‐scale grain farming. Despite this support, many of the new farms have struggled financially and folded. Drawing on Foucauldian biopolitics and resource security literature, I argue that, with modernised agriculture, the state primarily
Ross Doll
wiley +1 more source
Space propulsion systems. Present performance limits and application and development trends [PDF]
Typical spaceflight programs and their propulsion requirements as a comparison for possible propulsion systems are summarized. Chemical propulsion systems, solar, nuclear, or even laser propelled rockets with electrical or direct thermal fuel ...
Buehler, R. D., Lo, R. E.
core +1 more source
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Continuing current (CC) in cloud‐to‐ground (CG) lightning plays a critical role, particularly in wildfire ignition, yet CC's mechanism remains an open question. This study analyzes six CG flashes captured by the high‐speed camera at Beijing and Lhasa, which reveal the propagation of intracloud negative leaders before and after each return ...
Jizhou Feng +12 more
wiley +1 more source