Collection
Office of Scientific & Technical Information Technical Reports
328
Congressional Research Service Reports
98
Texas Patents
59
Government Accountability Office Reports
43
Texas Attorney General Opinions
42
Technical Report Archive and Image Library
35
Texas Laws and Resolutions Archive
28
National Advisory Committee for Aeronautics Collection
20
TRAIL Microcard Collection
12
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664 Matching Results
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Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder
"A ram-jet engine with an experimental 48-inch-diameter combustor was investigated in a free-jet facility. The combustor design comprised a large-volume annular pilot region and an array of sloping baffle- or gutter-type flameholders. The combustor was intended to operate at a fuel-air ratio of about 0.037" (p. 1).
Date:
May 11, 1955
Creator:
Rayle, Warren D.; Smith, Ivan D. & Wentworth, Carl B.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Results From Free Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder
Report presenting an investigation in a free-jet facility of a ramjet engine with an experimental 48-inch-diameter combustor. Three combustor lengths, three lengths of the shroud which separated the bypass air from the burning stream, and four fuel-distribution systems were investigated over a range of fuel-air ratios and a range of engine air flows. Results regarding the engine performance and ignition data, effect of fuel profile on combustion efficiency, total-pressure ratio, and distribution of static pressure in the main air stream are provided.
Date:
May 11, 1955
Creator:
Rayle, Warren D.; Smith, Ivan D. & Wentworth, Carl B.
Object Type:
Report
System:
The UNT Digital Library
Purex Pulse Generator Operation
None
Date:
May 11, 1955
Creator:
McCarthy, P. B.
Object Type:
Report
System:
The UNT Digital Library
Purex Pulse Generator Operation
A large (size 2) Purex pulse generator was installed in the 321 Building Tan Farm to pulse solutions in the prototype Purex HA Column. Flow sheet considerations indicated a need for information on leakage rates with various size weep holes in the pulse generator piston. In addition to leakage tests, experiments were conducted to determine the air required under the piston to hold the column contents away from the pulse generator piston thereby preventing leakage during shut down and the determine the time required to bleed the air trapped in the pulse leg when the column is first filled. [...] Leakage past the piston was not appreciably affected by pulse frequency. [..] Bleeding the air out of the pulse leg under start-up conditions, even with the piston weep hole plugged, was rapid. The longest time required to bleed the pulse leg was 36 minutes, which included a column-filling time of 30 minutes.
Date:
May 11, 1955
Creator:
McCarthy, P. B.
Object Type:
Report
System:
The UNT Digital Library
Experiments on Polarization in Scatterig Deuterons from Complex Nuclei and in Proton-Proton Scattering (Thesis)
Abstract: "The elastic double scattering of deuterons by complex nuclei has been investigated experimentally. Measurements were made on carbon, aluminum, and copper at around 157 Mev; on lithium, beryllium, and carbon at around 125 Mev; and on carbon and aluminum at 94 Mev. The expected tensor components of the deuteron polarization have not been observed. Measurements have been made of the differential cross section and vector-type polarization as a function of angle for the scattering of deuterons from the above elements, at the above energies. The observed polarizations were larger than would be expected on the basis of the individual nucleon-nucleus interactions. In a second experiment we measured the 169-Mev proton-proton polarization at 10, 15, 22.5, 30, and 35 in the laboratory system. The results indicate that partial waves up to and including L = 3 are important at this energy."
Date:
May 11, 1956
Creator:
Baldwin, John A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Metallurgy Division SemiAnnual Progress Report for Period Ending October 10, 1955
Static corrosion tests in sodium and in fused-fluoride-salt mixture on type 310 stainless steel T-joints brazed with various alloys by the Wall Colmonoy Corporation indicate that the 9% Si-2.5% P-88.5% Ni alloy has fair resistance to both media.
Date:
May 11, 1956
Creator:
Frye, J. H.; Manly, W. D. & Cunningham, J. E.
Object Type:
Report
System:
The UNT Digital Library
Neutral H Atom and Molecular Ion (H₂⁺) Injection into the Mirror Machine at Energies About One Mev
This report presents the best estimate possible on the basis of the available information as to how high an energy would be necessary in order that the gas pressure which could be tolerated would be attainable with present techniques (say 10-(-7) mm Hg.)
Date:
May 11, 1956
Creator:
Lauer, Eugene J. & Gibson, Gordon
Object Type:
Report
System:
The UNT Digital Library
Reduction of Air Borne Contamination UO₃ Plant
Gradual corrosion and mechanical wear of equipment over a period of years has affected the seals and gasketing of the electric pot calcining equipment in the 224-U Building Cell E to such an extent that the desirable vacuum cannot be maintained in the pots. Air contamination has been gradually increasing, and this, together with a lowering of the mask working limits, has made it necessary to require personnel to wear assault masks continuously. Indications are that, with the increased production now required, the level of air contamination will continue to rise unless measures are taken to prevent it. The Manufacturing Department has requested that a project be established to reduce the contamination level. Several items of improvement are listed for consideration including, in general, the electric pot agitation and sealing, semi-automatic pot unloaders, cell ventilation and air locks, and the nitric acid off-gas system and stacks. Because of the urgency of improving the conditions, the project, at first, is to provide for immediate improvements for the electrical pot agitation, the pot cover leakage, and the nitric acid off-gas system and stack. Additional study will be required to determine the extent of the ventilation and semi-automatic unloading improvements required.
Date:
May 11, 1956
Creator:
Ingalls, W. P. & Sanborn, K. L.
Object Type:
Report
System:
The UNT Digital Library
Studies Regarding the Role of Wyoming Natural Gas in Precipitating Primary uranium Minerals from Pregnant Solutions
Abstract: This project was designed to test the chemical feasibility of depositing of depositing a primary uranium mineral from a pregnant solution by exposing the solution to natural gas in an environment favorable to such deposition.
Date:
May 11, 1956
Creator:
Sims, Harry M. & Smith, Fred L.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: S-195
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Ben Shepperd, regarding a legal question submitted for clarification: Authority of the State Board of Water Engineers to refuse or limit creation of a Water Control and Improvement District when the petitioners do not intend to exercise some part of the purpose expressed.
Date:
May 11, 1956
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Adsorption of Xenon in an Activated Charcoal Column
Performance characteristics of two activated charcoal columns at room temperature in separating fission-product xenon from an air stream were investigated by installing each column in the exhaust from an enclosure in which irradiated slugs were dissolved. Breakthrough curves are presented and the variation in xenon concentration within the columns is examined. Theoretical treatments of adsorption columns in the literature are found to agree well with the experimental data. Performance of the colunms is evaluated in terms of concentration factor'' and number of effective theoretical plates. (auth)
Date:
May 11, 1959
Creator:
Cantelow, H. P.
Object Type:
Report
System:
The UNT Digital Library
Conversion of Mica-Window G-M Tube Lead-Pig Counters to Scintillation Detection
Because of the excessive vertical fragility and high replacement costs of mice-window G-M tubes used in vertical and horizontal lead-pig shelf counters, it was requested that a simple system of conversions to reliable scintillation detection be accomplished.
Date:
May 11, 1959
Creator:
Spear, W. G. & Crouch, G. D.
Object Type:
Report
System:
The UNT Digital Library
An Experimental Study of Retinal Burns: Part I. The Irradiance Thresholds for Chorio-Retinal Lesions. Part II. Entoptic Scatter as a Function of Wave Length
Using a high intensity light source to produce chorioretinal lesions in the eyes of rabbits, cats, and guinea pigs, the authors determined, at different levels of retinal irradiance, the exposure time which produced an ophthalmoscopically visible lesion. It was found that, at irradiance levels greater than 2 cal/cm/sup 2/sec, a radiant exposure of 1.0 cal/cm/sup 2/ produced a threshold lesion. At irradiance levels less than 0.7 cal/cm/sup 2//sec, lesions could not be produced at any exposure time through ten seconds. Histological data on the nature of the legions and course of healing are presented and discussed. (auth)
Date:
May 11, 1959
Creator:
Demott, D. W. & Davis, T. P.
Object Type:
Report
System:
The UNT Digital Library
High-Frequency Titration as Applied to the Determination of Thorium, Uranium, Sulfate, and Free Acid. Parts 1-51
The technique of high-frequency titrimetry was applied to the determination of thorium, uranium, sulfate, and free acid. In Part I, the reproducibility of the method for the titration of standard solutions that contained 50 rag of thorium in the absence of interferences is established. Under these conditions, the coefficient of variation of the method was <1%. In Part II, the effect of uranium on the highfrequency titration of thorium, as well as the application of the method to actual samples, is discussed. Uranium in a ratio of 5 to 1 to thorium can be tolerated. When the method is applied to the analysis of representative samples, the coefficient of variation is 1%. Attempts to determine uranium by high-frequency titration with 8-quinolinol were unsuccessful. Tests on this titration and possible reasons for its failure are discussed in Part III. The application of the high-frequency titration method to the determination of sulfate in solutions of uranyl sulfate is described in Part IV. The coefficient of variation, on titrating 40 to 70 mg of sulfate with barium chloride after the uranium is masked with citrate or fluoride, is 2%. In Part V, the high-frequency titration of free acid in solutions of uranyl sulfate …
Date:
May 11, 1959
Creator:
Menis, O
Object Type:
Report
System:
The UNT Digital Library
High-Frequency Titration as Applied to the Determination of Thorium, Uranium, Sulfate, and Free Acid. Parts I Through V.
The technique of high-frequency titrimetry has been applied to the determination of thorium, uranium, sulfate, and free acid. In Part I of this report, the reproducibility of the method for the titration of standard solutions which contained 50mg of thorium in the absence of interferences is established. The coefficient of variation of the method, under these conditions, was found to be less than one per cent. In Part II, the effect of uranium on the high-frequency titration of thorium, as well as the application of the method to actual samples, is discussed. Uranium in a ratio of 5 to 1 to thorium can be tolerated. When the method is applied to the analysis of representative samples, the coefficient of variation is one per cent.
Date:
May 11, 1959
Creator:
Menis, Oscar
Object Type:
Report
System:
The UNT Digital Library
Power Reactor Fuel Reprocessing: Mechanical Phase
None
Date:
May 11, 1959
Creator:
Klima, B. B.
Object Type:
Report
System:
The UNT Digital Library
Reprocessing of Are Fuel, Volatility Pilot Plant Runs E-1 and E-2
After two batches ( approximately 340 kg) of fluoride salt from the ARE were reprocessed, a pilot plant operations were terminated because of a leak through which an estimated 780 g of uranium (as UF/sub 6/ escaped. Of the 21 kg of highly enriched uranium in the feed, 93.12% was collected as UF/sub 6/ product, 0.13% represented measured losses, and 3.72% was unaccounted for (leak). An additional 3.03% was reclaimed from NaF beds and equipment washes. The produce met both chemical purity and activity specifications for product level UF/ sub 6/. Decontamination from fission products was essentially complete. A gross gamma decontamination factor was apparently limited by the low activity of the feed salt. (auth)
Date:
May 11, 1959
Creator:
Whitmarsh, C. L.
Object Type:
Report
System:
The UNT Digital Library
Reprocessing of ARE Fuel, Volatility Pilot Plant Runs E-1 and E-2
After two batches (~ 340 kg) of fluoride salt from the ARE were reprocessed, pilot plant operations were terminated because of a leak through which an estimated 780 g of uranium (as UF6) escaped. Of the 21 kg of highly enriched uranium in the feed, 93.12% was collected as UF6 product, 0.13% represented measured losses, and 3.72% was unaccounted for (leak). An additional 3.03% was reclaimed from NaF beds and equipment washes. The product met both chemical purity and activity specifications for product level UF6. Decontamination from fission products was essentially complete. A gross gamma D.F. was apparently limited by the low activity of the feed salt.
Date:
May 11, 1959
Creator:
Culler, F. L.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: WW-621
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Will Wilson, regarding a legal question submitted for clarification: Constitutionality of H.B. 142, of the 56th Legislature, authorizing the State Parks Board to acquire public sites in proximity to the shores of public lakes, bays and gulfs for recreation purposes.
Date:
May 11, 1959
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
ELECTRON-SPIN-RESONANCE STUDIES ON PHOTO-SYNTHETIC MATERIALS
A number of organisms have been examined for their ability to produce electron-spin-resonance signals at low temperatures in response to illumination. The efficiency of the response is of the order of not less than 5%, and the wavelength for maximum response is generally slightly on the longer side of the wavelength of maximum absorption, with a minimum appearing at the wavelength of maximum absorption.
Date:
May 11, 1960
Creator:
Sogo, Power B.; Carter, Louise A. & Calvin, Melvin.
Object Type:
Report
System:
The UNT Digital Library
Further Development of Gas-Pressure Bonding of Zircaloy-Clad Flat-Plate Uranium Dioxide Fuel Elements
The effects of core barrier coatings, void spaces, and surface-cleaning techniques on the quality of Zircaloyclad flat-plate UO/sub 2/ fuel elements prepared by gas-pressure bonding were investigated. Techniques were developed for the application of barrier layers of chromium by a vapordeposition process and of crystalline carbon by a pyrolytic process. These coatings, together with a graphite coating previously developed, were evaluated in pressure-bonded fuel elements for their effectiveness in preventing coreto-cladding reaction and for their general production feasibility. Crystalline carbon coatings 15 to 40 mu in. thick and chromium coatings 25 to 40 mu in. thick were determined to be satisfactory. In the stady of the flow of cladding-plate material into void spaces in the picture-frame assembly, it was established that excessive flow, and consequent thinning of the cladding, can be minimized by individually compartmentalizing the cores with Zircaloy ribs. This design resulted in maximum restriction of the effects of a cladding failure in service. Quantitative data on the maximum amount of void space resulting from manufucturing tolerances or from chipped fuel cores that is tolerable in cladding failure in service. Quantitative data on the maximum amount of void space resulting from manufucturing tolerances or from chipped fuel cores that …
Date:
May 11, 1960
Creator:
Paprocki, Stan J.; Hodge, Edwin S.; Layer, Edwin H.; Wintucky, Edwin G.; Gripshover, Paul J. & Carmichael, Donald C.
Object Type:
Report
System:
The UNT Digital Library
Supplement A production test IP-314-A, measurement of fuel element temperature changes as the result of film deposition
The objective of this supplement is to determine the effects of operation with neutral pH water on crud deposition on fuel surfaces. This supplement authorizes testing designed to show the effects of coolant pH on the thickness of the crud layer deposited on fuel elements. The supplement will not require additional reactor down time nor will it introduce any hazards to the reactor.
Date:
May 11, 1960
Creator:
Miller, N. R. & Kratzer, W. K.
Object Type:
Report
System:
The UNT Digital Library
Design Study of a Pebble-Bed Reactor Power Plant
Sanderson & Porter have carried out a series of studies over the last four years which indicate that the pebble-bed reactor way be an attractive way to obtain low-cost power. At the request of the Atomic Energy Commission, two design studies have been carried out on this concept at the Oak Ridge National Laboratory. The first of these a preliminary design of a 10-Mw(t) reactor experiment, the PRRE, was initiated September 10, and a report on the study was issued November 1960. The second phase of the work, a conceptual design study of a 330-Mw (e) central station, was initiated November 1, and is the subject of this report.
Date:
May 11, 1961
Creator:
Fraas, A. P.; Carlsmith, R. S.; Corum, J. M. & Foster, J.
Object Type:
Report
System:
The UNT Digital Library
Flow increase: C reactor
At the request of B-C Maintenance Engineering, this study was initiated to investigate the feasibility of replacing the 190-C and 105-C process water flow-meter orifices with venturi tubes. Specific aspects of the problem studied were potential flow increases, accompanying production increases, costs, and the ability of the existing 190-C pumps and motors to provide the potential flow increase.
Date:
May 11, 1961
Creator:
Tupper, W. J.
Object Type:
Report
System:
The UNT Digital Library