Resource Type
Partner
UNT Libraries Government Documents Department
20,463
Rosenberg Library
87
UNT Libraries Special Collections
40
Dallas Municipal Archives
24
UNT Center for Economic Development and Research
9
UNT Libraries
7
National WASP WWII Museum
6
Dallas Area Rapid Transit (DART)
5
Rice University Woodson Research Center
2
UNT College of Engineering
2
7 More
Collection
Office of Scientific & Technical Information Technical Reports
13,120
Congressional Research Service Reports
3,656
Technical Report Archive and Image Library
2,325
National Advisory Committee for Aeronautics Collection
1,181
Government Accountability Office Reports
655
Texas State Publications
449
TRAIL Microcard Collection
431
Texas State Auditor's Office: Reports
99
Harris and Eliza Kempner
87
Office of Technology Assessment
65
32 More
Serial/Series Title
NACA Research Memorandums
469
Atomic Energy Commission Reports
354
NACA Technical Notes
338
CRS Issue Briefs
174
NACA Technical Memorandums
152
United States Geological Survey Reports
140
United States Department of Energy Grand Junction Office Reports
129
NACA Wartime Reports
107
GJBX
101
Argonne National Laboratory Reports
94
547 More
Country
States
Decade
Month
20,652 Matching Results
Results open in a new window/tab.
Temperature Effects on the Measurement of Aqueous Liquid Level by the Differential Pressure Method and Recommendations for Placement of Taps on the HRT Replacement Heat Exchanger
Increasing temperature in an aqueous liquid system results in a decrease in liquid density and an increase in vapor density. When level is measured by the differential pressure method, temperature increase results in a decrease in the effective span f the instrument and a shift in zero. When the instrument reference leg is uncompensated, both zero and span shifts occur with the effects being most pronounced at the high levels. When the reference leg is compensated, zero shifts are eliminated (instrument zero is at 100% level for this type installation). For control purposes at levels above 50% of full level, the compensated reference leg installation will give the best results. For measurement of levels below 50%, the uncompensated installation is best. As errors in level indications will be produced, in either type installation, by temperature, pressure and steam withdrawal (power) effects, the placement of taps should be such as to place the normal or control level in the region of 50% indicated level.
Date:
April 26, 1957
Creator:
Moore, R. L.
System:
The UNT Digital Library
Curve Plotting Routine for the Oracle
A general program has been written to plot curves on the Oracle curve plotter. A description of the code and complete instructions for preparation of input tapes and operation of the code are given. The code tape is available from the Mathematics Panel or from the author.
Date:
April 11, 1957
Creator:
Lietzke, M. P.
System:
The UNT Digital Library
Quarterly Report of the Solution Corrosion Group for the Period Ending April 30, 1957
A third test of the mockup of the Zircaloy - stainless steel transition joint as used in the HRT reactor vessel was completed. No additional mechanical deflections of the bellows were made, but 12 additional thermal cycles of the unit were carried out. . The joint and bellows functioned properly and were leak-tight. Corrosion of stainless steel in 0.04 m UO2SO4 containing equimolar beryllium sulfate was not greater at 10-15 fps and much less at 15-75 fps, than in HRT solution at 200 and 225 C. Increasing the beryllium sulfate concentration to 0.08 m increased corrosion at 225 C and resulted in an unstable solution at 300 C.
Date:
April 30, 1957
Creator:
Griess, J. C.; Savage, H. C.; English, J. L.; Greeley, R. S.; Buxton, S. R.; Hess, D. N. et al.
System:
The UNT Digital Library
A Preliminary Study of Molten Salt Power Reactors
A preliminary study of molten salt power reactors was made. The most promising fuel carrier salts were the fluorides and chlorides of the alkali metals, zirconium, and beryllium. The chlorides were found to have lower melting points but were less stable and more corrosive than the fluorides. A Li/sup 7/ F- - BeF/sub 2/ mixture with ThF/sub 4/ and UF/sub 4/appeared to perform best. Of the numerous alloys tested as container material, Inconel and a nickel-- molybdenum alloy INOR-8 appeared to be the most resistant to corrosion. To study the performance, safety, economics, and construction costs of a typical molten salt reactor, a reactor of specific type and size was chosen for study. The reference design reactor was a two-region homogeneous converter with a core salt of 70 mole% Li/sup 7/F and 30% BeF/sub 2. ThF/sub 4/ and enough VF/sub 4/ for criticality were added. Study indicated that a molten salt reactor would produce economical power, but the problem of developing a salt core and a container metal which would last for many years of operation needed further study. (M.C.G.)
Date:
April 29, 1957
Creator:
MacPherson, H. G.; Alexander, L. G.; Carrison, D. A.; Estabrook, J. Y.; Kinyon, B. W.; Mann, L. A. et al.
System:
The UNT Digital Library
Second and Third Operating Test of HRT Core Vessel Transition Joint and Expansion Bellows Mockup
Second and third tests were conducted on an expansion bellows and Zircaloy-stainless steel transition joint assembly, duplicating that used in the core-pressure vessel assembly of the HRT. The assembly was exposed for 1140 hours in the second test and and 167 hours in the third to a solution containing 0.04m UO2SO4, 0.02m H2SO4, and 0.005m CuSO4 in a 100A dynamic corrosion loop under conditions simulating reactor startup, shutdown, and steady-state operation. Results indicated that the transition joint assembly as tested was mechanically sound and leak-tight. Pit-type corrosion continued on the expansion bellows where the upper retaining tangent contacts the bellows. Results are included of specimens exposed to the circulation solution during transition joint and bellows test.
Date:
April 30, 1957
Creator:
Greeley, R. S.; Ulrich, W. C.; Savage, H. C.; Griess, J. C. & Mauney, T. H.
System:
The UNT Digital Library
Suggestion for High Pressure Letdown Device
A letdown valve design is described which reduces erosion of the sealing surfaces. It also provides for water flushing of the sealing surface before closing.
Date:
April 2, 1957
Creator:
Lyon, Richard Norton
System:
The UNT Digital Library
Pressure Rise in HRT Shield Due to Reactor and Replacement heat Exchanger Rupture
.Recalculations were made of HRT cell pressures in the event of a simultaneous rupture of the reactor core vessel and the fuel and blanket heat exchangers. These calculations will be applicable after the replacement fuel heat exchanger is installed. The pressure rise in the cell is plotted as a function of time. A maximum cell pressure of 34 psig is achieved ~7 sec after rupture.
Date:
April 2, 1957
Creator:
Bolger, J. C.; Maak, R. O. & Gift, E. H.
System:
The UNT Digital Library
Acid Formation in the Radiolysis of Phosphorus Esters
The radiolytic decomposition of tributyl phosphate has been show by burr to product gases, acids, and polymers. the acids that are formed can limit the usefulness of tributyl phosphate for the processing of radioactive materials. The study of acid formation on radiolysis therefor becomes important to us for the understanding of the mechanism of acid formation, the influence of added materials and the effect of the structure of organo- phosphorous compounds. Samples of purified esters have been irradiated in the ORNL cobalt source. Conclusions: (1) The formation of acid from tributyl phosphate during irradiation with cobalt gamma rays involves a mechanism that is not a primary step. Evidence has been obtained for a secondary reaction that is minimized by the presence of certain compounds. (2) Toluene acting as an inhibitor for radiolytic formation of acid may indicate the usefulness of an aromatic hydrocarbon diluent in processing. (3) The aromatic hydrocarbon, when phenyl, was not effective when it was part of the molecule. (4) First tests revealed that dibutyl butyl-phosphonate produced less acid the TBP and may warrant further consideration for process application.
Date:
April 3, 1957
Creator:
Baldwin, W. H.
System:
The UNT Digital Library
Habitat Development Field Investigations, Windmill Point Marsh Development Site, James River, Virginia: Appendix B. Propagation of Vascular Plants
Appendix detailing the results of experiments conducted on the propagation of vegetation at the James River Habitat Development Site, in addition to results of laboratory germination tests of all the species of seeds used at the Site. This appendix accompanies the final report of the habitat field investigations of the Windmill Point Marsh Development Site, James River, Virginia.
Date:
April 1978
Creator:
Garbisch, W. E.
System:
The UNT Digital Library
The Beckman 7C Thermal Cell (Hydrogen Monitor) Experiments
Report describing small-scale laboratory experiments using a Beckman model 7C thermal conductivity cell conducted in order to provide a better understanding of the response of the hydrogen monitor during Power Burst Facility (PDF) Severe Fuel Damage (SFD) tests (p. 1).
Date:
April 1989
Creator:
Petti, D. A.; Carboneau, M. L; Martinson, Zoel R.; Hobbins, Richard R.; Allison, C. M.; Carlson, E. R. et al.
System:
The UNT Digital Library
Appendix B. Anomaly Reports
Text summarizing the features of the 10 type localities and 30 anomalous areas for mineral occurrences in the project area, the Dillon, Butte, Hamilton, and Elk City 1º x 2º NTMS Quadrangles. Each report includes date, chemical symbols for major/minor metals, location data, geochemical features, radiometric features, geophysical features, structural features, and host rocks.
Date:
April 1983
Creator:
Madson, Michael E.; Karp, K. E.; D'Andrea, R. F. & Morrison, B. C.
System:
The UNT Digital Library
Appraisal Practices of Texas School Districts and Counties:1993
Annual statistical report documenting assessment rations for school districts to provide taxpayers with information to determine the equity of their properties and to assist local officials who are evaluating their taxing system.
Date:
April 1993
Creator:
Texas Research League
System:
The Portal to Texas History
Appraisal Practices of Texas School Districts and Counties: 1987
Annual statistical report documenting assessment rations for school districts to provide taxpayers with information to determine the equity of their properties and to assist local officials who are evaluating their taxing system.
Date:
April 1987
Creator:
Texas Research League
System:
The Portal to Texas History
Appraisal Practices of Texas School Districts and Counties: 1994
Annual statistical report documenting assessment rations for school districts to provide taxpayers with information to determine the equity of their properties and to assist local officials who are evaluating their taxing system.
Date:
April 1994
Creator:
Texas Research League
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2022], Part 5
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 4, 2022
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2021], Part 2
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2, 2021
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2022], Part 6
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 4, 2022
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2022], Part 4
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 4, 2022
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: April 2022, Part 2
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2022
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2021], Part 5
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2, 2021
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2021], Part 4
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2, 2021
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: [March 2021], Part 6
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2, 2021
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Texas Inmate Monthly Report: March 2021
Monthly report issued by the Texas Department of Criminal Justice providing statistical information about numbers and categories of inmates held in various locations across Texas.
Date:
April 2, 2021
Creator:
Texas. Department of Criminal Justice.
System:
The Portal to Texas History
Low-Level Radioactive Wastes in Texas: Volumes, Characteristics, and Projections
Report that "categorizes waste sources as institutional, industrial, federal facility, formerly used sites, and commercial nuclear power reactor" (p. xi).
Date:
April 1983
Creator:
Texas Low-Level Radioactive Waste Disposal Authority
System:
The Portal to Texas History