Filter processes applied to the scattering parts of lunar seismograms for identifying the 300 km discontinuity and the lunar grid system
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Engineering topics
Publications and source records attributed to Voss, J..
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Review of some of the problems associated with the determination of epicenters and mechanisms of moonquakes with the aid of the four seismic stations now operating on the moon. No decoupling of compressional, transverse, and surface waves takes place there, no clear first arrivals can be found, and coherence between vertical and horizontal components on a seismograph stationed on the moon is poor. New techniques for locating epicenters are presented.
Metered vent controls the pressure within a liquid hydrogen tank. Vent size is chosen to permit a gas flow which corresponds to the boil-off rate necessary to maintain the desired bulk temperature of the cryogen.
Changing urban growth patterns seen from land use and real estate value transactions using Illinois city data base