Subsonic sphere drag measurements at intermediate Reynolds numbers
Wind tunnel drag measurements on subsonic sphere
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Wind tunnel drag measurements on subsonic sphere
Supporting development of experimental design for water recovery system
Quasi-static Kerr magneto-optic observation and procedure to predict results of dynamic flux reversal in thin Ni-Fe films
Ta type I and II wire resistance in transverse magnetic field during superconducting to normal transition, discussing strain and impurity effects
Ar-Kr integral collision cross sections based on density measurements of Ar beam passed through liquid nitrogen cooled Kr filled scattering chamber
Crossed beam apparatus /evatron/ for studying energy spectra of crossed positive ethylene ion beams and neutral ethylene molecule beams
Ar-Kr integral collision cross sections based on density measurements of Ar beam passed through liquid nitrogen cooled Kr filled scattering chamber
Optical to IR conversion in circumstellar dust envelope with spherical symmetry based on optical radiation scattering and absorption by dust
Lunar surface roughness effects on thermal radiation, using model surface with parallel troughs
Observational errors effects on surface waves resolution, describing shear velocity determination in crust and mantle from observed waves
Man machine systems and astronaut and onboard computer communications
Measurement of photosynthetic electron transport in Porphyridium by EPR electron paramagnetic resonance
Oblate planet artificial satellite motion, obtaining secular and periodic perturbations to third and second order
Heavy particles collision induced excitation, deexcitation and ionization rates, calculating atomic H quantum level transitions due to H and He atomic collisions at thermal energies
The 18-cm microwave spectra of Orion B and W3A show evidence of an emission feature to the high-frequency side of the carbon recombination line. Observations at different frequencies establish that this feature results from electronic recombination. In addition, theoretical considerations, results of 21-cm observations, and computer-simulated spectra suggest that the new feature originates in a predominantly neutral hydrogen region and can be explained by a superposition of recombination lines from any or all of the following elements: Mg-24, Si-28, S-32, and Fe-56.
The thermal conductivity of an Apollo 12 fines sample (12001,19) was measured under vacuum conditions over a temperature range of 200 to 400 K for a density of 1640 kg/cu m. It was found to vary from approximately .0012 to about .0026 W/m-K. A least-squares curve was found to represent the data satisfactorily.
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Coincidence rates have been measured for inelastically scattered electrons and their associated bremsstrahlung for bombarding energies of 0.20 and 0.15 MeV. Measurements were made for an electron angle of 45 deg and a photon angle of 20 deg. Inelastic electron energies of 0.15 and 0.16 MeV were considered for an incident energy of 0.2 MeV and an inelastic electron energy of 0.12 MeV was considered for an incident energy of 0.15 MeV. To observe the trend with atomic number, Al and Au targets were used. The experimental cross section differentials in photon and electron angles and energy were found to be smaller than the predictions of the Bethe-Heitler theory.