Philadelphia region input-output study working papers
Economic impact analyses survey procedures, and input-output coefficient tables
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Economic impact analyses survey procedures, and input-output coefficient tables
Input-output coefficients for 86 final demand sectors in Philadelphia region
Aircraft technologies related to conventional and vertical takeoff and landing /VTOL/ flight modes, vehicle configuration, and propulsion systems
Spacecraft guidance, trajectory analysis, and celestial mechanics - conference
Engineering science in space - Conference, Huntsville, Alabama, October-November 1967
Nuclear science - IEEE Conference, Los Angeles, October-November 1967
Critical review of argument by Fredericks et al concerning ambiguity of IMP 1 data obtained from tilted spinning fluxgate magnetometers
H Lyman alpha emission spatial variations in night sky, criticizing hypothesis of neutral H- proton collisions in radiation belts
Photographic observations of meteors yielding orbits not differing significantly from those observed with Super-Schmidt cameras
Solar wind mechanism for origin of planetary rotation, discussing previous calculations of angular velocity and couple acting on planet
Criticism of work by Lerche regarding hydromagnetic analysis of Kelvin-Helmholtz configuration at boundary between solar wind and magnetosphere
Potential for advancement of astronomy by space programs
Solar cosmic rays diffusion relationship to interplanetary magnetic field power spectrum from high energy proton and electron observations
V/STOL aircraft characteristics, emphasizing propeller, ducted fan and turbojet types
Critique of magnetic response model for interaction of moon and interplanetary plasma magnetic field proposed by Blank and Sill
Freezing and melting of warm water at stagnation point on cold plate
Research on management of research and development
Evaluation of refractory tantalum-, tungsten-, niobium-, and molybdenum based alloys for space power systems applications