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Determination of moisture in low-rank coals
None
Date:
May 1, 1953
Creator:
Goodman, J. B.; Gomez, M. & Parry, V. F.
System:
The UNT Digital Library
Preparation of Uranium Hexafluoride From Uranium Tetrafluoride Using Bromine Trifluoride Prepared in Situ
None
Date:
May 1, 1953
Creator:
Olszewski, E. B.
System:
The UNT Digital Library
DEVELOPMENT OF A PROCESS TO PRODUCE ZIRCONIUM HANFORD TYPE PROCESS TUBING BY ROLL FORMING AND INERT ARC WELDING
None
Date:
May 1, 1953
Creator:
Noland, R.A. & O'Keefe, G.B.
System:
The UNT Digital Library
THE THEORY OF QUANTIZED FIELDS. PART 3
In this paper we discuss the electromagnetic field, as perturbed by a prescribed current. All quantities of physical interest in various situations, eigenvalues, eigenfunctions, and transition probabilities, are derived from a general transformation function which is expressed in a non-Hermitian representation. The problems treated are: the determination of the energy-momentum eigenvalues and eigenfunctions for the isolated electromagnetic field, and the energy eigenvalues and eigenfunctions for the field perturbed by a time-independent current; the evaluation of transition probabilities and photon number expectation values for a time-dependent current that departs from zero only within a finite time interval, and for a time-dependent current that assumes non-vanishing time-independent values initially and finally. The results are applied in a discussion of the infra-red catastrophe and of the adiabatic theorem. It is shown how the latter can be exploited to give a uniform formulation for all problems requiring the evaluation of transition probabilities or eigenvalue displacements.
Date:
May 1, 1953
Creator:
Schwinger, J.
System:
The UNT Digital Library
THE PROPAGATION OF SPHERICAL SHOCK WAVES
None
Date:
May 1, 1953
Creator:
Ungar, E.E.
System:
The UNT Digital Library
DEVELOPMENT OF ZIRCONIUM CLAD URANIUM PLATES FOR REACTOR FUEL
None
Date:
May 1, 1953
Creator:
Lawless, J.J.; Bean, C.H.; Wooland, J.R. & Macherey, R.E.
System:
The UNT Digital Library
KAPL STUDY OF HETEROGENEOUS PLUTONIUM POWER REACTORS
None
Date:
May 1, 1953
Creator:
Ehrlich, R. & Luebke, E.A.
System:
The UNT Digital Library
Reprocessing of Uranium Bearing Barium Sulfate Cake Produced in the M.C.W. Refinery
This report describes work done in the pilot plant at Msllinckrodt toward development of a recovery process for U in BaSO/sub 4/ take. The investigation involved examination of chemical leaching problems, and testing of filtration equipment for recovery of the leached cake. Several additional problems uncovered during the work were introduction of the BaSO/sub 4/ cake into a slurry, settling of heavy fines in process equipment, and forming of the BaS0/ sub 4/ slurry. (auth)
Date:
May 1, 1953
Creator:
Kirby, A.M.
System:
The UNT Digital Library