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Office of Scientific & Technical Information Technical Reports
55,709
Government Accountability Office Reports
101
Texas Patents
45
Technical Report Archive and Image Library
44
Texas State Publications
43
TRAIL Microcard Collection
22
Congressional Research Service Reports
16
Texas Register
10
National Advisory Committee for Aeronautics Collection
6
Docs In The News
2
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Atomic Energy Commission Reports
30
Texas Department of Transportation Contract Reports
15
Construction Report
11
Texas Register
10
Health and Safety Laboratory Reports
9
Journal of Undergraduate Research
9
Notes of Monthly Component Test Program Review Meeting Held with SNPO at WANL
9
OIT Best Practices
8
Saxton Plutonium Project Quarterly Progress Report
8
Distributed Energy & Electric Reliability Fact Sheets
7
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Report of the Comptroller of Public Accounts of the State of Texas: 1889
Annual report of the Texas Comptroller of Public Accounts documenting financial records including disbursements and transactions made by the office during fiscal year 1889. Index starts on page 3.
Date:
January 1, 1890
Creator:
Texas. Comptroller's Office.
Object Type:
Report
System:
The Portal to Texas History
Evaluation of Foreign Multiplier Phototubes
"Several multiplier phototubes produced by England, Russia, or Switzerland were evaluated for amplification, photocathode sensitivity, photo-electron collection efficiency, cathode uniformity, and dark current. A description of the various tubes by designation numbers is given, along nth a description of techniques and equipment used in testing."
Date:
January 1, 1958
Creator:
Bolakas, J. & Parker, P G.
Object Type:
Report
System:
The UNT Digital Library
Research and Investigation Leading to Methods of Generating and Detecting Radiation in the 100 to 1000 Micron Wavelength Range of the Spectrum. Quarterly Progress Report No. 15 for 1 September to 1 December 1959
Purpose of this research is twofold:: (1) to uncover new principles or techniques from which a CW source of electromagnetic radiation for the low millimeter and submillimeter wavelength range can be developed; and (2) to develop suitable detectors, components, and measuring techniques for evaluating and using the radiation as a diagnostic tool for plasma physics
Date:
January 1, 1960
Creator:
Coleman, P. D.; Baird, J. R.; Enderby, C.; Hakki, B;; Kenyon, R. J.; Stafford, J. et al.
Object Type:
Report
System:
The UNT Digital Library
The Design and Uses of High Flux Research and Test Reactors
The need for thermal and fast neutron fluxes in the range of 1 to 5 x l0/ sup 15/ neutrons/cm/sup 2/(sec) for the production of heavy elements such as Cf/ sup 252/ and other special isotopes and for improving the quality of beam experiments, reactor materials testing work, and solid state research has led to plans for the construction of three ultra high flux research reactors. The designs of these and other high flux research reactors are based on the general technology of enriched tank-type reactors; however, they utilize the principle of separate fuel and moderator regions to achieve flux peaking in these regions. Thus, proposed designs take the form of an annular fuel region with internal and external moderating regions or an under moderated core with an external moderator or reflector. In such arrangements, the thermal flux peaks in the moderating regions and the fast flux peaks in the fuel region, which results in maximum fast and thermal fluxes per unit of power. Since most of the moderation of fast neutrons takes place outside of the fuel region, the thermal flux peaking depends on the number of fast neutrons leaking from the reactor core, which in turn depends on …
Date:
January 1, 1959
Creator:
Lane, J. A.
Object Type:
Report
System:
The UNT Digital Library
[Texas] Land and Water Resources Conservation and Recreation Plan: 2010
Plan outlining how the Texas Parks and Wildlife department plans to "conserve land and water resources and to provide outdoor recreation opportunities for all Texans" (Letter to the People of Texas).
Date:
January 1, 2010
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Book
System:
The Portal to Texas History
Water Use of Texas Water Utilities: 2017 Biennial Report
Report covering historical water use, sector-based water use, daily water use, future and related efforts of Texas Water Utilities, and other related information.
Date:
January 1, 2017
Creator:
Texas Water Development Board
Object Type:
Report
System:
The Portal to Texas History
Water Use of Texas Water Utilities 2020 Biennial Report
"This report provides the most recent data relating to statewide water use in residential, industrial, agricultural, commercial, and institutional sectors" to help plan for Texas' water supply uses.
Date:
January 1, 2021
Creator:
Texas Water Development Board
Object Type:
Report
System:
The Portal to Texas History
A report on exemption of courses for extracurricular activities
The report describes changes that have been adopted after the amendment of Texas Education Code (TEC), §33.081, which narrowed the number of courses that may be exempt from “No Pass, No Play” requirements, including the review and adjustment of Texas Essential Knowledge and Skills (TEKS) standards.
Date:
January 1, 2013
Creator:
Texas Education Agency
Object Type:
Report
System:
The Portal to Texas History
Final Report A CG-791 Containment Test
This report describes and evaluates the Hanford 105 reactor building structures' ability to withstand an internal pressure increase. The means by which their roof and wall surface would contain a pressure buildup 0.3 psi, and prevent contaminant release which might accompany a nuclear incident are discussed. Prototypes of the B, D, DR, F, and H reactor block wall configuration, the corrugated transite roof of the K reactors, and the corrugated transite walls of the K and C reactors are evaluated. Methods of securing certain building components are described, and a comparison of several candidate sealant coatings presented for consideration. These tests were performed at the request of the Design Operation, as part of CG-791, an existing reactor containment program. This series of tests represents only a part of the overall modifications program. A study of the reactor building containment design criteria is available in a Hanford document, HW-59236, by T. O. Brown.
Date:
January 1, 1960
Creator:
Jensen, H. F.
Object Type:
Report
System:
The UNT Digital Library
Biennial report to the 86nd Texas legislature
This is the the State Office of Risk Management Biennial Report, as the guidelines for oversight in developing and maintaining effective risk management programs; specialized assistance and training; comprehensive data collection, monitoring, and analysis; and the workers’ compensation program.
Date:
January 1, 2019
Creator:
Texas. State Office of Risk Management.
Object Type:
Report
System:
The Portal to Texas History
The Singularities of the Riemann Function
"This paper deals with the Riemann function for linear hyperbolic systems of first-order equations. the leading term in the singularity of the Riemann function is determined and interpreted. In addition to equations with distinct characteristics, certain equations with multiple characteristics are treated."
Date:
January 1, 1961
Creator:
Ludwig, Donald
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the Best Management Practices in Certain Water Conservation Plants
Report summarizing the evaluations of the best management practices for utilities with 3,300 or more connections that applied for financial assistance from the TWDB during fiscal years 2017 and 2018.
Date:
January 1, 2019
Creator:
Texas Water Development Board
Object Type:
Report
System:
The Portal to Texas History
Chain Reaction of Pure Fissionable Materials in Solution
The critical mass of 94-239 and the corresponding critical dimensions of homogeneous mixtures of 94-239 with various moderating media been calculated as a function of the concentration of 94. A simple transformation makes the figures applicated to92-235. the results are in essential agreement with the preliminary estimated made independently by Oppenheimer and Serber. The problem of the stability of a chain reaction in solution and questions of protection are discussed.
Date:
January 1, 1943
Creator:
Christy, Robert F., 1916-2012 & Wheeler, John Archibald, 1911-2008
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report on a Colorimetric Method for the Determination of Microgram Quantities of Thorium : Experiments in the Dissolution of O2 Metal [UO2]
Abstract. thorium can be precipitated as a salt of p-dimethylaminoazophenylarsonic acid at a pH of about 1.5. the precipitate, collected on a sintered glass filter is washed with dilute ammonium hydroxide to dissolve the dye. the amount of thorium is determined by measuring the concentration of the dye spectrophotometrically at a wavelength of 450 millimicrons. Zirconium, which interferes, can be separated and determined using the same reagent in strong hydrochloric. the behavior of thorium metal upon treatment with various acids and upon fusion withKHSO4 is described. three satisfactory procedures are given for dissolving the metal with sulfuric acid, phosphoric acid, and by a potassium hydrogen sulfate fusion. The laboratory was presented with the problem of analyzing for a large number of elements in O2 metal. the results of a systematic study of methods for effecting solution of the metal are offered here since they may be of some interest and use to other laboratories. The four methods which effected complete solution of the metal are (1) Sulfuric acid method; (2) Fusion method; (3) Phosphoric acid method; and (4) Nitric acid-hydrofluoric acid method.
Date:
January 1, 1945
Creator:
Byerly, W.; Niedrach, L.; Davin, W.; Dyas, H. & Bane, R. W.
Object Type:
Report
System:
The UNT Digital Library
Chemical Engineering Division Summary Report October, November, and December, 1953
Progress is reported on (1) experimental breeder reactor program, (2) solvent extraction, (3) fluoride volatilization separation process, (4) elevated temperature separations, (5) denitration of uranyl nitrate in a fluidized bed, (6) development of analytical techniques, (7) processing and utilization of radioactive wastes.
Date:
January 1, 1954
Creator:
Lawroski, Stephen & Stevenson, C. E.
Object Type:
Report
System:
The UNT Digital Library
Collected Reports on Fission Cross Sections of U237 in Thermal Neutron, Intermediate Neutron, and Degraded Fission Neutron Spectra
Part 1. The neutron fission cross section of U237 has been measured in a thermal neutron spectrum and in a somewhat degraded fission spectrum. The fission cross section for thermal neutrons is found to be <2 barns; the ratio of the fission cross section of U237 to that of U235 in the degraded fission spectrum is found to be 0.476 +- 15% which corresponds to [formula] in this spectrum equal to 0.66 +- 0.10 barns. Part 2. The average neutron fission cross section of U237 has been measured in a neutron energy range extending from approximately 100 ev to fission spectrum. the average fission cross section in this spectrum is found to be 0.70 +- 0.07 barns. Part 3. The low thermal fission cross section for U237 (<2 barns) indicated that the excitation function for fission probably shows an effective threshold. If the excitation function is like all other heavy element (Z > 90) neutron fission excitation functions, it will exhibit a region of approximate constancy starting at a neutron energy of 0.5 to 1 Mev above its effective threshold and extending to a neutron energy in the neighborhood of 5.5 Mev. A hypothetical excitation function for neutron fission of …
Date:
January 1, 1955
Creator:
Cowan, G. A. (George A.), 1920-2012
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 46, Number 1, Pages 1-222, January 1, 2021
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 1, 2021
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Boiler-Cleaner
Patent for an appliance to clean boilers. Device remains in boiler and sucks dirt particles out.
Date:
January 1, 1918
Creator:
Cross, William G.
Object Type:
Patent
System:
The Portal to Texas History
Automobile-Tire.
Patent for a device that provides a cushion to spring wheels.
Date:
January 1, 1918
Creator:
Dalwigk, Hermann
Object Type:
Patent
System:
The Portal to Texas History
Waterproof Car-Door.
Patent for a freight car door of "strong, durable, and inexpensive construction which will be water and air tight, and which will be practically indestructible in case of a wreck" (lines 17-20) including illustrations.
Date:
January 1, 1918
Creator:
Atkinson, George C.
Object Type:
Patent
System:
The Portal to Texas History
Spindle Lubricator.
Patent for improving the process of lubricating spindles without removing the wheel, and at a more affordable cost.
Date:
January 1, 1918
Creator:
Stair, Oscar H.
Object Type:
Patent
System:
The Portal to Texas History
Hinge Gage and Marking Tool
Patent for a hinge gage (sic) and marking tool.
Date:
January 1, 1918
Creator:
Pummill, George R.
Object Type:
Patent
System:
The Portal to Texas History
Thermal Conductivity of Silicon and Iron From 300 to 1400°K
From Abstract : "The thermal diffusivities of pure silicon and of Armco iron have been measures from 300 to 1400°K. The specific heats of the same materials have been measured over the same temperature range."
Date:
January 1, 1963
Creator:
Klein, A. H.; Shanks, H. R. & Danielson, G. C.
Object Type:
Report
System:
The UNT Digital Library
Biennial Report of the Texas Library and Historical Commission: 1972-1974
Biennial report of the Texas Library and Historical Commission for the years 1972 to 1974 detailing the activities and changes of the agency.
Date:
January 1, 1975
Creator:
Texas Library and Historical Commission
Object Type:
Report
System:
The Portal to Texas History