Results 71 to 80 of about 1,976 (201)

Multiplying Elements of Fragmentation? Polycentrism, the Launcher Crisis and the Future of Europe in Space

Global Policy, EarlyView.
ABSTRACT This article explores the current controversies surrounding the European Ariane launcher and its implications for the future of European space governance. The Ariane program, historically a symbol of European technopolitical integration, faces mounting challenges due to delays, rising costs and increasing competition from private actors like ...
Nina Klimburg‐Witjes, Joseph Popper
wiley   +1 more source

3D printed hybrid rocket fuels with μAl core-shell particles coated with polyvinylidene fluoride and polydopamine: Enhanced combustion characteristics

Defence Technology
3D printing technology enhances the combustion characteristics of hybrid rocket fuels by enabling complex geometries. However, improvements in regression rates and energy properties of monotonous 3D printed fuels have been limited.
Qihang Chen, Xiaolong Fu, Weitao Yang, Suhang Chen, Zhiming Guo, Rui Hu, Huijie Zhang, Lianpeng Cui, Xu Xia   +8 more
doaj   +1 more source

Collaborative Sounding Rocket launch in Alaska and Development of Hybrid Rockets

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN, 2009
Tokai University student rocket project (TSRP) was established in 1995 for a purpose of the space science and engineering hands-on education, consisting of two space programs; the one is sounding rocket experiment collaboration with University of Alaska Fairbanks and the other is development and launch of small hybrid rockets.
ONO, Tomohisa, TSUTSUMI, Akimasa, ITO, Toshiyuki, KAN, Yuji, TOHYAMA, Fumio, NAKASHINO, Kyouichi, HAWKINS, Joseph   +6 more
openaire   +2 more sources

Re‐thinking peripheral dysfunctions in obesity: The emerging role of sulphaceutics and sulphanutraceutics

British Journal of Pharmacology, EarlyView.
Obesity is a chronic, relapsing, multisystem disease in which cardiometabolic risk arises from excess adiposity and progressive dysfunction of peripheral organs, ultimately disrupting endocrine and metabolic crosstalk among tissues. Within this network, sulphur‐based biology, centred on hydrogen sulphide and related reactive sulphur species, has ...
Martina Smimmo, Veronica Casale, Roberta d'Emmanuele di Villa Bianca, Valentina Vellecco, Mariarosaria Bucci   +4 more
wiley   +1 more source

Image analysis for velocity profile estimation in A-SOFT hybrid rocket combustor

Journal of Fluid Science and Technology, 2018
Altering-intensity Swirling-Oxidizer-Flow-Type (A-SOFT) hybrid rocket engine (HRE) was proposed as a technique to solve problems of current hybrid rockets.
Nobuhiro KIMURA, Kei OBATA, Koki KITAGAWA, Toru SHIMADA   +3 more
doaj   +1 more source

InterPLAY: A Framework to Describe Play and STEM Engagement at Exhibits for Young Children

Curator: The Museum Journal, EarlyView.
ABSTRACT Play‐based STEM learning at exhibits is a feature of children's museums and science centers; yet little is known about how these exhibits support young children's STEM engagement. This study developed and tested the interPLAY Framework to describe play‐based STEM engagement at exhibits for young children.
Kelly L. Hoke, Martin Storksdieck, Kelly Riedinger, Jessica J. Luke, Jennifer Rehkamp   +4 more
wiley   +1 more source

“Nowhere else to go”: Slow abandonment and (en)closures of long‐term care in Los Angeles

Medical Anthropology Quarterly, EarlyView.
Abstract Residential long‐term care facilities, known in California as “board and care” homes, have been closing rapidly in the last decade. Proponents assert these provide vital forms of housing and care to the poor and must be saved, while critics contend they perpetuate the institutionalization of people with disabilities and should be abolished ...
Maxwell A. Hellmann
wiley   +1 more source

HYBRID ROCKET ENGINE TEST FACILITY DESIGN

Havacılık ve Uzay Teknolojileri Dergisi, 2016
Hybrid rocket engines is relatively less researched subject of chemical rockets. Using fuel and oxidizer in different phases hybrids are safe and cheap. Yet, they are not generating enogh thrust to deliver heavy payloads to edge of space.
Ali Emre Samur, Abdurrahman Hacıoğlu, Arif Karabeyoğlu   +2 more
doaj  

Aeroacoustics of Hybrid Rockets

JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2022
Shintaro Nakamura, Mikiya Araki, Juan C. González Palencia, Koki Yamagishi, Kazuki Yasuda, Daisuke Nakata, Masaharu Uchiumi   +6 more
openaire   +1 more source

Welcome Home: A Shared Identity Recognition in the Time of Crisis

Nations and Nationalism, EarlyView.
ABSTRACT How does a society sustain collective identity when formal citizenship and cultural recognition persistently diverge? Drawing on qualitative interviews with native‐born sabras and Russian‐speaking immigrants in Israel, this article develops a recognition‐gap framework specifying the mechanisms through which national belonging is produced ...
Mania Borzenko
wiley   +1 more source