Zobrazeno 1 - 10
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pro vyhledávání: '"Jon Holladay"'
Autor:
Jon Holladay, Karen J. Weiland
Publikováno v:
INCOSE International Symposium. 27:1594-1608
In 2016, the NASA Engineering and Safety Center established a model-based systems engineering (MBSE) Pathfinder. The primary motivations for establishing the MBSE Pathfinder were to advance the Agency's applications of MBSE and capture lessons-learne
Autor:
Terry Sanders, Paul Schwindt, Jessica Rae Lieberman Knizhnik, Amanda Stein, Jon Holladay, Karen J. Weiland
Publikováno v:
2019 IEEE Aerospace Conference.
Almost fifty years ago, Dr. Robert Frosch, the fifth NASA administrator, delivered a speech on the practice of systems engineering and a call for improvement that remains relevant today. A key difference between the past and today is that the digital
Publikováno v:
2019 IEEE Aerospace Conference.
The first flight of NASA's new exploration-class launch vehicle, the Space Launch System (SLS), will test a myriad of systems designed to enable the next generation of deep space human spaceflight, and launch from Kennedy Space Center no earlier than
Publikováno v:
Journal of Emerging Technologies in Accounting. 13:195-213
This paper presents the accompanying Teaching Notes for “International AC: An Education Case on Continuous Monitoring SQL Server Data with ODBC-Linked Tables in Microsoft Access.” The purpose of these Teaching Notes is to prepare the faculty memb
Publikováno v:
2014 IEEE Aerospace Conference.
The Space Launch System (SLS) is envisioned as a heavy-lift vehicle that will provide the foundation for future beyond-low-Earth orbit (LEO) exploration missions. Previous studies have been performed to determine the optimal configuration for the SLS
Publikováno v:
International Journal of Mechanical Sciences. 42:185-198
Jet pumps are devices capable of pumping fluids to a higher pressure by inducing the motion of a secondary fluid employing a high speed primary fluid. The main components of a jet pump are a primary nozzle, secondary fluid injectors, a mixing chamber
Publikováno v:
2012 IEEE Aerospace Conference.
The Space Launch System (SLS) is envisioned as an heavy-lift launch vehicle (HLLV) that will provide the foundation for future large-scale beyond low earth orbit (LEO) missions. In support of the initial Mission Concept Review (MCR) milestone, severa
Publikováno v:
2012 IEEE Aerospace Conference.
A standardized engine-out capability (EOC) has not been studied exhaustively as it pertains to human-rated space launch systems. This work provides an approach to realizing the necessity of EOC for any launch vehicle system design, and also presents
Autor:
Jason Hopkins, Timothy Monk, Keithe Baggett, Ian Dux, Jon Holladay, John Jaap, Chad Brown, Robin M. Pinson
Publikováno v:
2011 Aerospace Conference.
The reference heavy-lift launch vehicle (Ares V) for NASA's Constellation Program served as the Point of Departure for Mars Design Reference Architecture 5.0 (DRA 5.0)1, 2. The Ares V vehicle consists of two 5-segment reusable solid rocket boosters,
Publikováno v:
2011 Aerospace Conference.
Mars Design Reference Architecture 5.01(Mars DRA5.0) 2, released in 2009, presented a method for sustained human exploration of Mars using either Nuclear-Thermal Propulsion or Chemical Propulsion along with a Heavy-Lift Launch Vehicle such as the Are