8,834 research outputs found
Materials for electrochemical cell separators Summary report
Asbestos and other candidate materials for electrochemical cell separator
Event-by-event study of prompt neutrons from 239Pu(n,f)
Employing a recently developed Monte Carlo model, we study the fission of
240Pu induced by neutrons with energies from thermal to just below the
threshold for second chance fission. Current measurements of the mean number of
prompt neutrons emitted in fission, together with less accurate measurements of
the neutron energy spectra, place remarkably fine constraints on predictions of
microscopic calculations. In particular, the total excitation energy of the
nascent fragments must be specified to within 1 MeV to avoid disagreement with
measurements of the mean neutron multiplicity. The combination of the Monte
Carlo fission model with a statistical likelihood analysis also presents a
powerful tool for the evaluation of fission neutron data. Of particular
importance is the fission spectrum, which plays a key role in determining
reactor criticality. We show that our approach can be used to develop an
estimate of the fission spectrum with uncertainties several times smaller than
current experimental uncertainties for outgoing neutron energies up to 2 MeV.Comment: 17 pages, 20 figure
Odonata at a Small Woodland Pond in Southern Illinois
A survey of the adult odonate fauna of a small woodland pond in Pope County, Illinois, was conducted during 1983--·1984. Twenty-four species were collected including Aeshna mutata and Anax longipes. In addition, Libellula vibrans was collected in 1982, and Aeshna sp. (probably u. umbrosa) observed the same year but not collected
Initial radio-frequency gas heating experiments to simulate the thermal environment in a nuclear light bulb reactor
Initial radio frequency gas heating experiments to simulate thermal environment in nuclear light bulb reacto
Experimental investigations to simulate the thermal environment, transparent walls, and propellant heating in a nuclear light bulb engine
Simulating thermal environment, transparent walls, and propellant heating in nuclear light bulb engin
Study of asbestos for electrochemical cells First summary report
Fuel cell asbestos test progra
Materials for Electrochemical Cell Separators
Chemical and electrochemical compatibility of fuel cell type asbestos, zirconia, and ceria for use in alkaline-electrolyte electrochemical cell separator
Carbonation cell materials compatibility
Material test and evaluation program for compatibility of materials with alkaline and acid electrolyte environments of carbonation cell syste
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