59,122 research outputs found
Operational considerations for the airship in short-haul transportation
The airship's problems and the possibilities for their solution in a short-haul transportation environment are surveyed. The problems are derived from both past experience and envisioned operation. Problems relative to both fully buoyant and semi-buoyant configurations are considered and their origins in principle discussed. Also addressed in this paper are the state-of-the-art technologies with the potential of providing answers to the airship's operational difficulties
Thermoelectric metal comparator determines composition of alloys and metals
Emf comparing device nondestructively inspects metals and alloys for conformance to a chemical specification. It uses the Seebeck effect to measure the difference in emf produced by the junction of a hot probe and the junction of a cold contact on the surface of an unknown metal
Optical Constants of Magnesium Oxide in the Far Ultraviolet
Optical constants of magnesium oxide in far ultraviole
Use of Skylab EREP data in a sea-surface temperature experiment
The author has identified the following significant results. A sea surface temperature experiment was studied, demonstrating the feasibility of a procedure for the remote measurement of sea surface temperature which inherently corrects for the effect of the intervening atmosphere without recourse to climatological data. The procedure was applied to Skylab EREP S191 spectrometer data, and it is demonstrated that atmospheric effects on the observed brightness temperature can be reduced to less than 1.0 K
Ground effects on Loran-C signals
In conjunction with the test and evaluation of the position fixing capabilities of the Army Manpack Loran Receiver AN/PSN-6, an extensive series of time difference and signal amplitude measurements were made within a 100 km map grid square encompassing Fort Monmouth, New Jersey. The test location is within the coverage area of the East Coast Loran-C Chain. The data were used to develop a simple smooth-earth model for the test area as well as to estimate the magnitude and distributions of deviations from this model. Local propagation processes associated with topographic features and the grid of overhead wires in the test area are shown to contribute to the deviations from the model
Use of Skylab EREP Data in a Sea Surface Temperature Experiment
There are no author-identified significant results in this report
Optical Constants of Lithium Fluoride in the Far Ultraviolet
Optical constants of lithium fluoride in far ultraviole
Use of Skylab EREP data in a sea surface temperature experiment
There are no author-identified significant results in this report
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