Results 101 to 110 of about 35,322 (227)

Comparison of dynamic isotope power systems for distributed planet surface applications [PDF]

open access: yes
Dynamic isotope power system (DIPS) alternatives were investigated and characterized for the surface mission elements associated with a lunar base and subsequent manned Mars expedition. System designs based on two convertor types were studied.
Bents, David J.   +5 more
core   +1 more source

Study of low acceleration space transportation systems. Volume I - Summary Phase II STUDY report [PDF]

open access: yes
Technical feasibility of electric-nuclear propulsion system for manned Mars ...
Brown, H., Coates, G. L.
core   +1 more source

Advanced general aviation comparative engine/airframe integration study [PDF]

open access: yes
The NASA Advanced Aviation Comparative Engine/Airframe Integration Study was initiated to help determine which of four promising concepts for new general aviation engines for the 1990's should be considered for further research funding.
Ellis, D. R., Huggins, G. L.
core   +1 more source

Design of Space Powerplants [PDF]

open access: yesJournal of Applied Mechanics, 1964
Donald B. Mackay, S. I. Freedman
openaire   +1 more source

The fuel cell in space: Yesterday, today and tomorrow [PDF]

open access: yes
The past, present, and future of space fuel cell power systems is reviewed, starting with the first practical fuel cell by F.T. Bacon which led to the 1.5 kW Apollo alkaline fuel cell.
Prokopius, Paul R., Warshay, Marvin
core   +1 more source

Corrosive Effect of Wood Ash Produced by Biomass Combustion on Refractory Materials in a Binary Al-Si System. [PDF]

open access: yesMaterials (Basel), 2022
Ovčačíková H   +5 more
europepmc   +1 more source

General Aviation Turbine Engine (GATE) Overview [PDF]

open access: yes
When all the technology studies were done and the accompanying market analyses were complete, the conclusion was that it is indeed possible to reduce the cost of turbine engines by a factor of 3 using low-cost manufacturing techniques and increased ...
Strack, W. C.
core   +1 more source

Cooperatives for demand side management

open access: yes, 2012
We propose a new scheme for efficient demand side management for the Smart Grid. Specifically, we envisage and promote the formation of cooperatives of medium-large consumers and equip them (via our proposed mechanisms) with the capability of regularly ...
Chalkiadakis, Georgios   +4 more
core  

Solar energy to meet the nation's energy needs [PDF]

open access: yes
Solar energy, being a non-depleting clean source of energy, is shown to be capable of providing energy in all the forms in which it is used today.
Rom, F. E., Thomas, R. L.
core   +1 more source

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