Results 111 to 120 of about 38,264 (239)

Hybrid Propulsion Technology Program [PDF]

open access: yes
Future launch systems of the United States will require improvements in booster safety, reliability, and cost. In order to increase payload capabilities, performance improvements are also desirable.
Holzman, A. L., Jensen, G. E.
core   +1 more source

Experimental studies of ionospheric irregularities and related plasma processes [PDF]

open access: yes
Utah State University (USU) continued its program of measuring and interpreting electron density and its variations in a variety of ionospheric conditions with the Experimental Studies of Ionospheric Irregularities and Related Plasma Processes program ...
Baker, Kay D.
core   +1 more source

Next generation earth-to-orbit space transportation systems: Unmanned vehicles and liquid/hybrid boosters [PDF]

open access: yes
The United States civil space effort when viewed from a launch vehicle perspective tends to categorize into pre-Shuttle and Shuttle eras. The pre-Shuttle era consisted of expendable launch vehicles where a broad set of capabilities were matured in a ...
Hueter, Uwe
core   +1 more source

Experimental Research into an Innovative Green Propellant Based on Paraffin–Stearic Acid and Coal for Hybrid Rocket Engines

open access: yesInventions
This study focuses on an innovative green propellant based on paraffin, stearic acid, and coal, used in hybrid rocket engines. Additionally, lab-scale firing tests were conducted using a hybrid rocket motor with gaseous oxygen as the oxidizer, utilizing ...
Grigore Cican   +5 more
doaj   +1 more source

Design Optimization of Gas Generator Hybrid Propulsion Boosters [PDF]

open access: yes
A methodology used in support of a study for NASA/MSFC to optimize the design of gas generator hybrid propulsion booster for uprating the National Space Transportation System (NSTS) is presented.
Fink, Larry   +2 more
core   +2 more sources

Effects of radiation environment on reusable nuclear shuttle system [PDF]

open access: yes, 1972
Parametric tradeoff analyses of a wide spectrum of alternate tank configurations to minimize both primary and secondary, direct and scattered radiation sources emanating from the NERVA are reported.
Lane, A. G.
core   +1 more source

Non-chemical space propulsion [PDF]

open access: yes
Space mission requirements and technical feasibility of non-chemical space propulsion ...
Evvard, J. C.
core   +1 more source

Circular 109 [PDF]

open access: yes, 1996
Introduction -- Explanation of Plant Evaluation Tables -- Table 1. Weather records for the test years -- Table 2. All plant materials evaluated in 1996 -- Table 3. All plants that have been evaluated but did not survive the minimum number of test years --
Holloway, Patricia S.   +4 more
core   +1 more source

Project LOCOST: Laser or Chemical Hybrid Orbital Space Transport [PDF]

open access: yes
A potential mission in the late 1990s is the servicing of spacecraft assets located in GEO. The Geosynchronous Operations Support Center (GeoShack) will be supported by a space transfer vehicle based at the Space Station (SS).
Dixon, Alan   +5 more
core   +1 more source

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