Results 21 to 30 of about 62,680 (295)

Design and Test of a Student Hybrid Rocket Engine with an External Carbon Fiber Composite Structure

Aerospace, 2020
The development of hybrid rockets offers excellent opportunities for the practical education of students at universities due to the high safety and relatively low complexity of the rocket propulsion system.
Francesca Heeg, Lukas Kilzer, Robin Seitz, Enrico Stoll   +3 more
doaj   +1 more source

Report of the Sounding Rocket Experiment at Syowa Station : 1970-1973

Antarctic Record, 1975
The rocket launching facilities were inaugurated in 1969 and completed in 1971 at Syowa Station (60°00'S, 39° 35'E: geomagnetic lat. 69.6°S, long. 77.1°E). In the rocket range, about 500 m south-west of the main base: of Syowa, there are three buildings,
Masaru AYUKAWA, Takeo HIRASAWA, Susumu KOKUBUN, Masami OSE   +3 more
doaj   +1 more source

Influence of atmospheric vertical wind and turbulence on noctilucent clouds

Frontiers in Astronomy and Space Sciences
Noctilucent clouds (NLCs), also called Polar Mesospheric Clouds (PMC), are high-altitude ice clouds in the summer mesopause region, mainly at polar latitudes.
Ashique Vellalassery, Gerd Baumgarten, Mykhaylo Grygalashvyly, Franz-Josef Lübken, Gokul Udayakumar, Gokul Udayakumar   +5 more
doaj   +1 more source

Sounding Rocket Experiments at Syowa Station during International Magnetospheric Study (IMS) Period, 1976-1978

Antarctic Record, 1980
During the period of International Magnetospheric Study (IMS, 1976-1979), twelve S-210JA type and seven S-310JA type rockets were launched from Syowa Station, Antarctica, into auroras at various stages of polar substorms.
Masaru AYUKAWA, Takeo HIRASAWA
doaj   +1 more source

Ejection and recovery system for CubeSat sized ejectables on sounding rockets [PDF]

, 2013
Many sounding rocket experiments have the requirement to be free flying due to their size or the required precision of their measurements which would be falsified by other experiments on-board the same sounding rocket.
Sinn, Thomas, Clark, Ruaridh, Garcia Yarnoz, Daniel, Parry, Thomas, Lowe, Christopher John, Donaldson, Nathan   +5 more
core   +3 more sources

Absolute density measurements in the middle atmosphere [PDF]

Annales Geophysicae, 2001
In the last ten years a total of 25 sounding rockets employing ionization gauges have been launched at high latitudes ( ~ 70° N) to measure total atmospheric density and its small scale fluctuations in an altitude range between 70 and 110 km. While
M. Rapp, J. Gumbel, F.-J. Lübken
doaj   +1 more source

Robust Tracking Strategy for Modern GNSS Receivers in Sounding Rockets

, 2022
180186This paper presents a robust tracking strategy for global navigation satellite system (GNSS) receivers in sounding rockets. The continuous tracking of sounding rockets using G NSS signals becomes challenging due to the high signal dynamics ...
Felber, Wolfgang, Wolfgang Felber, Santiago Urquijo, Matthias Overbeck, Overbeck, Matthias, Mayer, Volker, Werner Enderle, Cortes Vidal, Inigo, Volker Mayer, Urquijo, Santiago, Enderle, Werner, Erik Schonemann, Agrotis, Loukis G., Loukis Agrotis, Ieigo Cortes, Schönemann, Erik   +15 more
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Sounding Rockets for Entry Research: SHEFEX Flight Test Program [PDF]

, 2013
Within research for space vehicles with Re-entry capability and hypersonic airplane development in the last decade sounding rocket systems became a major and important test bed.
Weihs, Hendrik
core  

Active Experiment with a Rocket-Borne High Power Electron Gun (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)

Antarctic Record, 1980
High power electron beam experiments have been performed by sounding rockets, and the spacecraft charging due to beam emission has been investigated. The charging effect was found to be considerably depressed by the extra ionization effect around the ...
Susumu SASAKI, Osamu KANEKO, Akira YAMORI, Yasuyuki YAGI, Nobuki KAWASHIMA, Tatsuzo OBAYASHI   +5 more
doaj   +1 more source