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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Galileo's Telecommunications Using the Low-Gain Spacecraft Antenna
Galileo's accomplishment of a science-rich mission through a low-gain antenna was possible by the coordinated efforts of the Deep Space Network support team, the spacecraft designers, and the science principal investigators.
Small Spacecraft Telecommunications for the New Millennium's Technology Validation Missions
NASA's vision for science exploration in the next century is based on frequent, affordable missions enabled by small, low-mass, low-cost, highly-autonomous spacecraft. Through the New Millennium Program (NMP), NASA is establishing a new and highly integrated approach to developing and flight-validating technologies that meet these spacecraft goals.
Telecommunications End-to-End Systems Monitoring on TOPEX/Poseidon: Tools and Techniques
The TOPEX/Poseidon Project Satellite Performance Analysis Team's roles and responsibilities have grown to include functions that are typically performed by other teams on JPL flight projects.
Development of telecommunication systems for EM-1 interplanetary CubeSat missions
UNKNOWN
Opportunistic Bistatic Radar with Telecommunications Systems on Planetary Helicopters
UNKNOWN
Space Telecommunications Radio System (STRS) Project Closeout
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Tree of Life: A Multi-Generational Telecommunication Concept
No abstract provided
NASA’s Interest in 3GPP Mobile Telecommunications Protocols for Near Earth Space and the Lunar Surface
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3GPP Mobile Telecommunications Technology on the Moon
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Connecting with Mars: the Evolution of Relay Telecommunication Networks for Mars
No abstract provided
Hybrid Geothermal Heat Pumps for Cooling Telecommunications Data Centers
The technical and economic performance of geothermal heat pump (GHP) systems supplying year-round cooling to representative small data centers with cooling loads less than 500 kWth were analyzed and compared to air-source heat pumps (ASHPs). A numerical model was developed in TRNSYS software to simulate the operation of air-source and geothermal heat pumps with and without supplementary air cooled heat exchangers - dry coolers (DCs). The model was validated using data measured at an experimental geothermal system installed in Ithaca, NY, USA. The coefficient of performance (COP) and cooling capacity of the GHPs were calculated over a 20-year lifetime and compared to the performance of ASHPs. The total cost of ownership (TCO) of each of the cooling systems was calculated to assess its economic performance. Both the length of the geothermal borehole heat exchangers (BHEs) and the dry cooler temperature set point were optimized to minimize the TCO of the geothermal systems. Lastly, a preliminary analysis of the performance of geothermal heat pumps for cooling dominated systems was performed for other locations including Dallas, TX, Sacramento, CA, and Minneapolis, MN.