A stream of oxygen excited by a radio frequency discharge can be used to decompose organic substances prior to trace element analysis. Biological tissue, graphite, filter paper, and ion exchange resin have been oxidized by this method. Rates of 1 gram per hour can be achieved with a 300-watt, 1 3.56-Mc. oscillator. Temperatures of less than 100°C. can be maintained.Radioactive tracer studies demonstrate that 17 representative elements can be
The theory of self‐preserving size distributions of Friedlander and Wang has been applied to particle formation after nuclear air bursts. The parameters at the start of coagulation are those derived from nucleation theory as applied by Stewart and by Edvarson. Brownian motion with and without slip correction has been considered. The results are compared with the log normal distribution having a logarithmic standard deviation of 2.0 such that both distributions have the same value of the geometric mean diameter. At constant mass 〈a〉 varies slowly with yield, namely, it varies as W−0.23. Contours of constant 〈a〉 as a function of mass and yield have been calculated. The results are compared with size distributions measured on cap and stem samples from eight air bursts of the 1962 Dominic series.
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