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Abstract Experiments are described in which frictional forces are measured between hardened steel surfaces lubricated with castor oil. In one series of experiments, balls of different sizes slide… (More)
Several problems are reviewed concerning the flow behavior of lubricants under the high pressures and shear stresses which occur in the contact zones of ball bearings and gears. A description is… (More)
Abstract Stress intensity factors are presented for a circular crack approaching the surface of a semiinfinite solid. Results are presented for uniform tension and linearly varying loading. The… (More)
We have measured the sound velocity, magnetic susceptibility, and upper superconducting critical field H/sub c/2 of a single crystal of V/sub 3/Si as a function of neutron irradiation up to a fluence… (More)
The superconducting critical fields of pure Zn and of a series ofZnMn alloys have been measured as a function of temperatureT down to 0.06 K. The critical fields have been used to calculate the… (More)
INTRODUCTION WITHIN 10 yr of the introduction of X-ray computed tomography (X-ray CT), diagnostic radiology has found itself on the threshold of a second revolution in imaging technique. The… (More)