Self-unloading, unmanned, reusable lunar lander project [PDF]
A payload delivery system will be required to support the buildup and operation of a manned lunar base. In response, a self-unloading, unmanned, reusable lunar lander was conceptually designed.
Cowan, Kevin +6 more
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Engineering evaluations and studies. Report for IUS studies [PDF]
The reviews, investigations, and analyses of the Inertial Upper Stage (IUS) Spacecraft Tracking and Data Network (STDN) transponder are reviewed. Carrier lock detector performance for Tracking and Data Relay Satellite System (TDRSS) dual-mode operation ...
core +1 more source
Aeronautical engineering: A continuing bibliography, supplement 122 [PDF]
This bibliography lists 303 reports, articles, and other documents introduced into the NASA scientific and technical information system in April ...
core +1 more source
A GaN-HEMT Active Drain-Pumped Mixer for S-Band FMCW Radar Front-End Applications. [PDF]
Sensors (Basel), 2023 Pagnini L, Collodi G, Cidronali A.
europepmc +1 more source
Traveling wave tube development for a serrodyne re-entrant amplifier [PDF]
Traveling wave tube development for serrodyne re-entrant ...
Allen, W. K. +2 more
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Program on application of communications satellites to educational development: Design of a 12 channel FM microwave receiver [PDF]
The design, fabrication, and performance of elements of a low cost FM microwave satellite ground station receiver is described. It is capable of accepting 12 contiguous color television equivalent bandwidth channels in the 11.72 to 12.2 GHz band.
Gregory, R. O. +2 more
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A new innovative real-time tracking method for flying insects applicable under natural conditions. [PDF]
BMC Zool, 2021 Walter T +5 more
europepmc +1 more source
Feasibility and systems definition study for Microwave Multi-Application Payload (MMAP) [PDF]
Work completed on three Shuttle/Spacelab experiments is examined: the Adaptive Multibeam Phased Array Antenna (AMPA) Experiment, Electromagnetic Environment Experiment (EEE) and Millimeter Wave Communications Experiment (MWCE).
Afifi, M. +9 more
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Fish tracking technology development. Phase 1 project definition desk study [PDF]
, 1994 The document reports on Phase 1 of a definition study to appraise the options to develop fish tracking equipment, in particular tags and data logging systems in order to improve the efficiency of the Environment Agency's tracking studies and to obtain a ...
Moore, A, Potter, E.C.E.
core
A Review of RFID Sensors, the New Frontier of Internet of Things. [PDF]
Sensors (Basel), 2021 Costa F +5 more
europepmc +1 more source