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Rocket Launching: A Universal and Efficient Framework for Training Well-performing Light Net [article]

Guorui Zhou, Ying Fan, Runpeng Cui, Weijie Bian, Xiaoqiang Zhu, Kun Gai
2018 arXiv   pre-print
We dub the whole process rocket launching, where the cumbersome booster net is used to guide the learning of the target light net throughout the whole training process.  ...  In order to further improve the neural networks' performance given the time and computational limitations, we propose an approach that exploits a cumbersome net to help train the lightweight net for prediction  ...  Conclusion We propose a general framework named rocket launching to get a efficient well-performing light model with the help of a cumbersome booster net.  ... 
arXiv:1708.04106v3 fatcat:q7i6jhuzvjdbtkubmhvnm7rhhm

Solid Rocket Enabling Technologies and Milestones in the United States

Leonard H. Caveny, Robert L. Geisler, Russell A. Ellis, Thomas L. Moore
2003 Journal of Propulsion and Power  
He is well known for his work in advanced nozzles and materials, particularly application of carbon-carbon ITEs and exit cones to nozzles.  ...  Now in his 45th year in solid rocketry he has worked on most aspects of solid rocket propulsion and serves as a private consultant for a number of organizations.  ...  Acknowledgments Firstly, the authors acknowledge all those worthy people and contributions not cited because of space limitations.  ... 
doi:10.2514/2.6944 fatcat:i4lxhgof3bfolkdlt3h3mfxpty

A Survey on Recovery Technology for Reusable Space Launch Vehicle
재사용 우주발사체의 회수 기술 현황 및 분석

Kyoseung Choo, Hokyun Mun, Seunghoon Nam, Jihyoung Cha, Sangho Ko
2018 Journal of the Korean Society of Propulsion Engineers  
The Marshall Space Flight Center (MSFC) in Huntsville, Alabama, is responsible for the development, production, and delivery of the Space Shuttle Main Engines, the Solid Rocket Boosters, and the External  ...  as to maximize crew performance and efficiency.  ...  the basic crew because extensive training is required for the safe and efficient operation of these systems.  ... 
doi:10.6108/kspe.2018.22.2.138 fatcat:dulcsifc6nerpo73ebihvho7u4

Development and flight history of the SERT II spacecraft

1993 Journal of Spacecraft and Rockets  
A leak test that was performed on the pad was negative, and the launch schedule was resumed.  ...  The ion thruster system efficiency optimization and component life tests were performed by a research group of six engineers.  ... 
doi:10.2514/3.25512 fatcat:tdk3efmhebgohc5tx5imhbkzku

Gossamer Spacecraft: Recent Trends in Design, Analysis, Experimentation, and Control

Eric J. Ruggiero, Daniel J. Inman
2006 Journal of Spacecraft and Rockets  
(BA) Christoph Wagne ADVICE TO ROCKET SCIENTISTS: A CAREER SURVIVAL GUIDE FOR SCIENTISTS AND ENGINEERS Jim LonGuski—Purdue University This book is a survival guide for anyone seeking a career in a high-tech  ...  Lewis University of Maryland, College Park, Maryland 20742 A design study was performed to define and compare the parameters of horizontal- and vertical-takeoff reusable launch-vehicle systems to identify  ... 
doi:10.2514/1.8232 fatcat:wfs3kkrherdbfh2pmvufmcdph4

Solar Sail Scalability and a "Truly Scalable" Architecture: The Space Tow

Gyula Greschik
2007 Journal of Spacecraft and Rockets  
JOURNAL OF SPACECRAFT AND ROCKETS Vol. 44, No. 4, July-August 2007 Solar Sail Scalability and a ‘Truly Scalable” Architecture: The Space Tow Gyula Greschik”* University of Colorado, Boulder, Colorado 80309  ...  As a result, the intuition to guide the design cannot train on direct observations of behavior and performance; instead, it develops from Earth-based physical experience on a much different scale, from  ... 
doi:10.2514/1.26556 fatcat:d74cp4ffkrevzcnuilcmdotawm

Advanced spacecraft stabilization and control techniques

1968 Journal of Spacecraft and Rockets  
subsystem and from pulse to pulse within a train of pulses with a given thruster.  ...  Although the basic SCS categories are well understood, significant value still is placed upon how a specific set of re- quirements is satisfied within their framework.  ... 
doi:10.2514/3.29492 fatcat:4jn4ximcdfg3rlmaka23qai6ti

Compressibility Considerations for k-w Turbulence Models in Hypersonic Boundary-Layer Applications

Christopher L. Rumsey
2010 Journal of Spacecraft and Rockets  
It is generally well known that simple algebraic turbulence models such as Baldwin—Lomax [36] can perform reasonably well for attached hypersonic boundary-layer flows, provided that the definition of y  ...  : $199.95 clips and over 1000 hyperlinks connecting the 335 training charts.  ... 
doi:10.2514/1.45350 fatcat:2p23qe4webaurmphudapbltime

Current Developments in Cosmic X-Ray Astronomy

K. A. Pounds
1969 Proceedings of the Royal Society A  
In 1970 or 1971, the first satellite payloads specifically designed for cosmic X-ray studies should be launched, bringing a notable advance in sensitivity and resolution of the observations.  ...  attitude controlled rockets (see, for example, Hazell, Cope & Walker 1968).  ...  for OAO-C by the Universities of Leicester and London.  ... 
doi:10.1098/rspa.1969.0198 fatcat:wpbxbyh775cqdjzpgy3igtimpm

Deep Learning Limitations and Flaws

Bahman Zohuri
2020 Modern Approaches on Material Science  
for its final processing of data and information in a trusted way of process of the precise decision making and prediction of event including any forecasting as part of its Use Case (UC) and Service Level  ...  However, there certain limitation and flaws that exists within DL component of AI or SAI that will cause and error to grow way beyond control and will impact its main master component namely AI and SAI  ...  Consider, for instance, the problem of learning the appropriate launch parameters to get a rocket to land on the moon.  ... 
doi:10.32474/mams.2020.02.000138 fatcat:kryw44db6rhrbheu3gp5bnm3ky

Deep learning-based object recognition in multispectral satellite imagery for real-time applications

Povilas Gudžius, Olga Kurasova, Vytenis Darulis, Ernestas Filatovas
2021 Machine Vision and Applications  
Its computationally light architecture delivers a fivefold improvement in training time and a rapid prediction, essential to real-time applications.  ...  Advancements in satellite hardware and low-cost rocket launches have enabled near-real-time, high-resolution images covering the entire Earth.  ...  On the back of the suggested approaches and experimental investigation, our developed U-net architecture exceeded the human-level performance with 97.67% accuracy for a "light-vehicle" object class over  ... 
doi:10.1007/s00138-021-01209-2 pmid:34177121 pmcid:PMC8217787 fatcat:fnojyyarn5gyzi7h6va5fvua7q

Space Tourism — From Dream to Reality [chapter]

A. P. Bukley, W. Mendell
2002 Beyond the International Space Station: The Future of Human Spaceflight  
A student´s spacecraft blueprint represents the dreams of tomorrow. On the back cover a painting depicts the elegance and romance of love with no bounds. Cover design by Patricia Garner.  ...  It is a reference to the dream or folk tale in China of travelling to the Moon to visit the mystical princess who lives there.  ...  Maintenance and launch preparation must be efficient in order to maximize the flight time for a vehicle.  ... 
doi:10.1007/978-94-015-9880-4_31 fatcat:fy3a3afdrfgs3mjfdmuo7gh2ve

The "Simplest Satellite" That Opened Up the Universe

Lev Zelenyi, Olga Zakutnyaya
2017 American Scientist  
During the subsequent years, development of Soviet cosmonautics encompassed a number of large and complicated programs: scientific research, manned space stations, satellites for national economy needs  ...  Joseph Lemaire for contributing important information and to Alex Dessler, Martin Walt, and Robert Wentworth for useful discussion .  ...  well as the 5 th scientific-research range, dealing with preparation of the satellite and launch booster for the launch, were engaged in this work within the framework of the Defense Ministry.  ... 
doi:10.1511/2017.105.5.282 fatcat:xipewdtj2jgihmq42zukxfuapq

Space debris ontology for ADR capture methods selection

Marko Jankovic, Mehmed Yüksel, Mohammad Mohammadzadeh Babr, Francesca Letizia, Vitali Braun
2020 Acta Astronautica  
To bridge this gap we present a domain-ontology of intact derelict objects, i.e. payloads and rocket bodies, for ADR capture methods selection.  ...  However, the quest for an optimal solution does not have a unique answer and the available data often lacks coherence.  ...  Therefore, the authors would like to thank the European Commission and the Research Executive Agency for their support and funding.  ... 
doi:10.1016/j.actaastro.2020.03.047 fatcat:xc3vpgi4arhy5pdybpotmo4v5i

The Euclid Data Processing Challenges

Pierre Dubath, Nikolaos Apostolakos, Andrea Bonchi, Andrey Belikov, Massimo Brescia, Stefano Cavuoti, Peter Capak, Jean Coupon, Christophe Dabin, Hubert Degaudenzi, Shantanu Desai, Florian Dubath (+28 others)
2016 Proceedings of the International Astronomical Union  
Euclid is a Europe-led cosmology space mission dedicated to a visible and near infrared survey of the entire extra-galactic sky.  ...  Its purpose is to deepen our knowledge of the dark content of our Universe.  ...  Euclid is a medium-class spacecraft mission of the Cosmic Vision program of ESA, planned for a 2020 launch on a Soyuz rocket from the European spaceport at Kourou (French Guiana) to the L2 Lagrangian point  ... 
doi:10.1017/s1743921317001521 fatcat:7nvnnxledbg7pbiu6khw7dqpbm
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