Results 81 to 90 of about 20,111 (287)
Robust multi-fidelity design of a micro re-entry unmanned space vehicle [PDF]
, 2011 This article addresses the preliminary robust design of a small-scale re-entry unmanned space vehicle by means of a hybrid optimization technique. The approach, developed in this article, closely couples an evolutionary multi-objective algorithm with a ...
Aupoix B. +9 more
core +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.
Tomohisa ONO +6 more
openaire +2 more sources
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
Metal-organic frameworks as hypergolic additives for hybrid rockets. [PDF]
Chem Sci, 2022 Jobin O +8 more
europepmc +1 more source
Design issues for lunar in situ aluminum/oxygen propellant rocket engines [PDF]
Design issues for lunar ascent and lunar descent rocket engines fueled by aluminum/oxygen propellant produced in situ at the lunar surface were evaluated.
Meyer, Michael L.
core +1 more source
NASA/FAA general aviation crash dynamics program [PDF]
, 1981 The program involves controlled full scale crash testing, nonlinear structural analyses to predict large deflection elastoplastic response, and load attenuating concepts for use in improved seat and subfloor structure.
Carden, H. D. +2 more
core +1 more source
Artificial three-body equilibria for hybrid low-thrust propulsion [PDF]
, 2008 This paper proposes a new concept of creating artificial equilibrium points in the circular restricted three body problem, where the third body uses a hybrid of solar sail and solar electric propulsion.
Baig, Shahid, McInnes, Colin R.
core +1 more source
Archaeometry, EarlyView.Abstract This study examines the continuity and change in harvesting practices between the Late Pre‐Pottery Neolithic B (LPPNB) and the Early Pottery Neolithic at Qminas, north‐western Levant, through a traceological analysis of flint sickles. By combining qualitative traceological analysis with quantitative functional approaches, we demonstrate that ...
Fiona Pichon +3 more
wiley +1 more source
Antarctic Record, 1979 Observations of the plasma wave emissions in a high frequency range from 01 to 10 MHz have been made using the lonospheric sounding rockets S-310JA-1, and 2, launched on February 13, 1976 and on February 10,1977, respectively, from Syowa Station in ...
Hiroshi OYA +2 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 +4 more
wiley +1 more source