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12,733 Matching Results
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Zimbabwe Update
This report discusses Zimbabwe's economic situation, specifically in the food and agricultural industries.
Date:
August 15, 2003
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
Ziptrack integrator
This technical memo is a brief owner's manual describing the operation and design of the ziptrack integrator. This electronic circuit is part of a magnetic field mapping devices in use on the Tevatron I at Fermilab. 7 figs., 15 tabs. (DWL)
Date:
August 15, 1986
Creator:
Prabhakar, Ernest N.
Object Type:
Report
System:
The UNT Digital Library
Zircaloy-2 Sheet and Strip Material
Scope. This specification covers Zircalogy-2 sheet and strip material for reactor use where high integrity and satisfactory corrosion resistance at elevated temperatures are quired.
Date:
July 15, 1960
Creator:
Perryman, E. C. W.
Object Type:
Report
System:
The UNT Digital Library
Zircaloy-2 Tubing for Fuel Sheathing
Scope. This specification covers Zircaloy-2 tubing, both seamless and welded, for reactor fuel rod sheathing where high integrity, and satisfactory corrosion resistance at elevated temperatures ae required.
Date:
July 15, 1960
Creator:
Perryman, E. C. W.
Object Type:
Report
System:
The UNT Digital Library
Zircaloy-2 Wire Material
Scope. This specification covers Zircaloy-2 wire material for reactor use where high integrity and satisfactory corrosion resistance at elevated temperatures are required.
Date:
July 15, 1960
Creator:
Perryman, E. C. W.
Object Type:
Report
System:
The UNT Digital Library
Zircaloy-4 Sheet and Strip Material
Scope. This specification covers Zircaloy-4 sheet and strip material for reactor use where high integrity and satisfactory corrosion resistance at elevated temperatures are required.
Date:
July 15, 1960
Creator:
Perryman, E. C. W.
Object Type:
Report
System:
The UNT Digital Library
Zircaloy-4 Wire Material
Scope. This specification covers Zircaloy-4 wire material for reactor use where high integrity and satisfactory corrosion resistance at elevated temperatures are required.
Date:
July 15, 1960
Creator:
Perryman, E. C. W.
Object Type:
Report
System:
The UNT Digital Library
ZIRCONIUM FLUORIDE PHASE STUDIES. I. A PRELIMINARY INVESTIGATION OF SOLID PHASES
Solid phases in the zirconium-nitric acid-hydrofluoric acid system were identified by chemical and x-ray diffraction methods. Five different compounds were crystallized at various temperatures and fluoride concentrations from fluoride or fluoborate solutions. These include the mono- and trihydrates of zirconium tetrafluoride, plus three hydrolysis products which possess a fluoride- to-zirconium ratio of approximately three, yet produce different x-ray patterns. The trifluorides crystallize from solutions of low fluoride-to-zirconium ratio at temperatures of below 90, 65 to 100, and above above 95 deg C, respectively. Solubilities of these basic trifluorides were measured at 25 deg C in 1, 6, and 16M nitric acid. (auth)
Date:
January 15, 1959
Creator:
Chapman, A.G. & Woodriff, R.A.
Object Type:
Report
System:
The UNT Digital Library
Zirconium hydride reactor core heat transfer studies summary report
None
Date:
June 15, 1973
Creator:
Marchese, A. R. & Gallegos, A. N.
Object Type:
Report
System:
The UNT Digital Library
Zirconium Research and Development : Progress Report
From introduction: "This is the ninth monthly report, BMI-514, under Contract No. AT(30-1)-771 on "Zirconium Research and Development". The report covers the work period from September 15, 1950, to October 15, 1950. Work is continuing on the preparation of large-diameter zirconium crystal bars in the 16-inch-diameter de Boer unit. Crystal bars up to 1-5/16 inches in diameter and 8 feet long have been prepared in this unit."
Date:
October 15, 1950
Creator:
Bulkowski, H. H.; Sebenick, J. J.; Campbell, Ivor E. & Gonser, B. W.
Object Type:
Report
System:
The UNT Digital Library
ZIRCONIUM RESEARCH AND DEVELOPMENT. Progress Report No. 9 for September 15, 1950 to October 15, 1950
A zirconium crystal bar, weighing 29 pounds and 1 5/16 inches in diameter by 8 feet in over-all length, was prepared, using pear-shaped zirconium couples to join the filament to the electrodes. This crystal bar was the largest produced to date in the 16-in.-diam. de Boer unit. The design of the couplings was modified to incorporate improvements indicated by the initial run, and another run is in progress. Binary alloys of Zr and Ni, Cr, and Si, as well as a zirconium alloy containing Fe, Al, and Si, were prepared for use as feed material in the small pyrex de Boer bulbs. The transfer of these elements from the feed to the crystal bar is being investigated. The rate of deposition and the type of crystal structure obtained with additions of various amounts of iodine are being studied. (auth)
Date:
October 15, 1950
Creator:
Bulkowski, H.H.; Sebenick, J.J.; Campbell, I.E. & Gonser, B.W.
Object Type:
Report
System:
The UNT Digital Library
ZONE MELTING OF URANIUM
None
Date:
June 15, 1955
Creator:
Whitman, C. I.; Compton, V. & Holden, R. B.
Object Type:
Report
System:
The UNT Digital Library
ZPPR progress report: November 1987-January 1988
This report details activities for the time period of November, 1987 through January, 1988. Further results are presented from the axially heterogeneous assembly ZPPR-17, a part of the JUPITER-III program. The loading of the ZPPR-17C assembly, with 13 half-inserted control rods, is described along with operational measurements, calculation models, and measurements and prediction of criticality. From ZPPR-17A, calculated and measured results are given for reaction rates and measured results for bowing, expansion and small sample worth experiments. From the earlier metal-fuel ZPPR-15 program results are given for measurements and calculations of Doppler reactivity coefficients.
Date:
February 15, 1988
Creator:
Collins, P.J. & Brumbach, S.B.
Object Type:
Report
System:
The UNT Digital Library