Collection
Office of Scientific & Technical Information Technical Reports
304
Congressional Research Service Reports
100
Texas Attorney General Opinions
55
United States Census Map Collection
54
Texas Patents
46
Government Accountability Office Reports
28
Technical Report Archive and Image Library
27
National Advisory Committee for Aeronautics Collection
15
TRAIL Microcard Collection
11
Texas Register
10
7 More
Serial/Series Title
Country
641 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
641
next
Homogeneous Molten Salt Reactors
Multigroup one-dimensional calculations were done recently to obtain estimates of critical masses, power density distributions and fissioning spectra for some homogeneous molten salt reactors having outer reflectors and central "islands," placed inside the currently proposed MSRE vessel. For a 5-inch-thick outer reflector and 1-ft-diamter island, both beryllium, the calculated critical mass is 108 kg; 40 percent of the fissions occur at thermal, and the maximum power density of 3.9 times the core mean power density occurs at the island-salt interface. If the reflector thickness is increased to 10 inches, the critical mass is reduced to 34 kg; 67 percent of the fissions occur at thermal, and the peak power density of twice the core mean again occurs at the core island-salt interface.
Date:
December 13, 1960
Creator:
Nestor, C. W., Jr
Object Type:
Report
System:
The UNT Digital Library
Equation of State of Solids
Data which determine points on the Hugoniot curves of fourteen solids are given in the technical report.
Date:
December 13, 1954
Creator:
Walsh, J. M. & Yarger, F L.
Object Type:
Report
System:
The UNT Digital Library
The Crystal Structure and Thermal Expansion of Gamma Plutonium
Gamma plutonium is found to be orthorhombic with eight atoms in a unit cell of dimension (1t 235 degree C) [formula]. The calculated density is [formula]. The space group is Fddd and the positions of the eight atoms are: [formula]. Each plutonium atom is bonded to ten others at an aver distance of [formula], four being at [formula], two at [formula] and found at [formula]. The mean linear coefficients of thermal expansion are found to be [formula].
Date:
December 13, 1953
Creator:
Zachariasen, William H. (William Houlder), 1906-1979 & Ellinger, F. H.
Object Type:
Report
System:
The UNT Digital Library
Reactivity Temperature Coefficient of High Exposure Fuel
The presence of large amounts of plutonium in high exposure uranium will give rise to a large, positive, graphite reactivity, temperature coefficient. This will create control problems in normal operation and also in the event of loss of cooling. Some general suggestions are given for the solution of these problems. The magnitude of the coefficient is probably known within ± 25% at present and a program is planned to reduce this uncertainty. The uncertainty is of minor importance in the operating control problem but of considerable significance in the disaster control problem.
Date:
December 13, 1954
Creator:
Gast, P. F.
Object Type:
Report
System:
The UNT Digital Library
City of Denton Debt Summary Report: As of September 30, 2013
This report provides statistics for the two types of long-term debt used by Denton to finance non-operating expenses: general obligation debt and revenue bond debt. It provides statistics, financial statements, and other data breaking down information about this debt and forecasting future obligations.
Date:
December 13, 2013
Creator:
Denton (Tex.). Finance Department.
Object Type:
Report
System:
The Portal to Texas History
High Voltage Electron Beam Welding of W-RE Thermocouples
A series of W-5 Re/W-26 Re thermocouples have been electron beam welded at the Hamilton Standard Division at our request. This technical report is a summary of our evaluation of these joints. These weldments did exhibit incomplete fusion in cap welds and some porosity in undesirable lead junction shapes. In fairness, this was a single attempt to make a difficult joint, and the objective of ungrounded 1/16 OD clad joints was met. As noted by Hamilton, two changes are necessary to improve this joint design: (1) swaging to forming the clad end rather than crimping prior to cap welding. (2) using a fixture with rotary motion on a tilting axis.
Date:
December 13, 1962
Creator:
Doyle, J.
Object Type:
Report
System:
The UNT Digital Library
Chemical Properties of Sodium Triethylhydroborate and Sodium Triisopropoxyhydroborate
Technical report abstract: Sodium hydride and triethylborane react to form sodium triethylhydroborate, NaBH(C2H5)3. This compound, a liquid at rooom temperature, was found to be soluble in hexane and mineral oil. A study was made of the thermal decomposition of sodium triethylhydroborate and its behavior toward boron trifluoride, boron trichloride, methyl borate, carbon dioxide, silane, and ethylene. Sodium triisopropoxyhydroborate, NaBH(OC3H7)3, was prepared and also found to be soluble in hexane and mineral oil. The reactions of this compound with methyl borate, triethylborane, silicon tetrachloride, and boron trichloride were investigated.
Date:
December 13, 1956
Creator:
Pearson, Richard King, 1926-; Edwards, L. J. & Maginnity, P. M.
Object Type:
Report
System:
The UNT Digital Library
Cooking Utensil
Patent for a device to heat a cooking utensil's content. The object provides a device which will support a receptacle in or outside any type of heating medium. It also requires only a minimal heating surface to radiate heat to all sides of the receptacle as well as the very bottom.
Date:
December 13, 1921
Creator:
Kirk, Robert B. & Young, Joseph B.
Object Type:
Patent
System:
The Portal to Texas History
Air-Brake and Starter for Automobiles.
Patent for multiple innovations to automobile air-brakes and starters, including improvements such as ease of use, reliability, and versatility amongst vehicle models.
Date:
December 13, 1921
Creator:
Green, Herbert
Object Type:
Patent
System:
The Portal to Texas History
Weevil-Exterminator
Patent for a new and useful improvement in weevil exterminators that provides a comparatively simple and effective apparatus for removing boll weevils from cotton plants. It also removes the injured or affect leaves and fruit that have been attacked by the boll weevil so that further injury to the plants may be prevented, and at the same time gather from the ground at the roots of the rows of cotton plants the leaves and rubbish detached from the plants.
Date:
December 13, 1921
Creator:
Roe, Charles C.
Object Type:
Patent
System:
The Portal to Texas History
Aeroplane
Patent for an aeroplane that is inexpensive and easily built, while preventing the aeroplane from going into a tailspin.
Date:
December 13, 1921
Creator:
{McGee, Dan}
Object Type:
Patent
System:
The Portal to Texas History
Power-Hammer.
Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date:
December 13, 1921
Creator:
Karlson, Eric Fritjof
Object Type:
Patent
System:
The Portal to Texas History
Plow
This patent focuses on a single-stock plow featuring an innovative attachment designed to enhance stability without requiring material structural changes. The attachment ensures improved steadiness during operation, providing an ease of use comparable to a turning plow
Date:
December 13, 1921
Creator:
Gage, Daniel W.
Object Type:
Patent
System:
The Portal to Texas History
Valve-Cleaner.
Patent for a valve cleaner to remove carbon from the internal combustion motors in automobiles. It can be used without removing the valve or motor.
Date:
December 13, 1921
Creator:
Henderson, Daniel D.
Object Type:
Patent
System:
The Portal to Texas History
Railroad Crossing Signal.
Patent for a railroad crossing signal. The device is created so that the highway signal can be automatically raised or lowered at the crossing by a passing train.
Date:
December 13, 1921
Creator:
Ridout, Horace J.
Object Type:
Patent
System:
The Portal to Texas History
Process of Making Bearings
Patent for the process of making bearings, for improvement of bearings and the process of bearing formation on the interior of rotary members (or rotary cutters used on earth boring drills).
Date:
December 13, 1921
Creator:
Fletcher, Harold W.
Object Type:
Patent
System:
The Portal to Texas History
Texas Register, Volume 44, Number 50, Pages 7563-7778, December 13, 2019
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:
December 13, 2019
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The Weighting of Intensities
Technical report. From report : "The method of least squares refinement is based on the prediction of the theory of errors that, if the errors of the observed structure factors follow the Gaussian distribution, the most nearly correct atomic parameters will be those which result in the minimization of the residual R = Σi [√wi(|Fo| - |Fc|)i]2."
Date:
December 13, 1962
Creator:
Hershaft, Alex & Corbett, John D.
Object Type:
Report
System:
The UNT Digital Library
The Crystal Structure of Bis(Meta-Chlorobenzoyl) Methane
Technical report. From Abstract : "The crystal structure of bis(meta-chlorobenzoyl) methane has been determined by three dimensional anisotropic least squares refinement of scintillation counter data. The molecule was found to be nearly planar with a maximum deviation from the least squares molecular plane of 0.068Å and an average deviation of 0.023Å. Fourier transform techniques to locate phenyl rings provided the key to the structure determination. The intramolecular bond distances and thermal parameters of the oxygen atoms support a resonant, enol ring with a symmetric, intramolecular hydrogen bond. The structure confirms conslusions from the structure of bis(meta-bromobenzoyl) methane where the symmetry of the molecule was forced by the crystal symmetry."
Date:
December 13, 1962
Creator:
Engebretson, Gordon R. & Rundle, R. E.
Object Type:
Report
System:
The UNT Digital Library
The Hydrolysis of Tributyl Phosphate Ad Its Effect on the Purex Process
From abstract: "The rate of hydrolysis of TBP and the effect of the hydrolysis products in the Purex Process have been studied. Hydrolytic conditions may be encountered in the process which would lead to formation of dibutyl phosphoric acid, causing significant losses of tetravalent plutonium in stripping. This situation may be easily alleviated by reducing and stripping the plutonium in the trivalent state."
Date:
December 13, 1951
Creator:
Reilly, V. J. & Lanham, W. B.
Object Type:
Report
System:
The UNT Digital Library
Thermal conductivity of halite using a pulsed laser
A feasibility study of the experimental determination of thermal conductivities of salts (NaCl) and a steel casing material using a pulsed laser technique are presented. Optically transparent materials such as salt were effectively coated with an opaque layer of aluminum or silver to satisfy test boundary conditions. Thermal conductivities for the three specimens were obtained from the thermal diffusivity, heat capacity and density relationship. Based on measurements from room temperature to 923/sup 0/K, single crystal halite yielded values ranging from 6.5 to 1.5 W/m-K versus 5.5 to 1.2 W/m-K for Avery Island Bed Salt. AISI 106-Grade B steel gave values of 46 to 29 W/m-K. While these measurements may be no better than +- 10 percent, it is possible with appropriate equipment and technique to generate data of engineering quality, +- 5 percent error, provided adequate test specimens can be fabricated. Attributes of this technique include the generation of data very quickly which is more applicable to testing large numbers of specimens relative to steady-state methods. The use of penny-sized specimens can be a problem from the fabrication requirement, especially for friable and anisotropic geological materials. The quality of the data rests on the adherence of the experimental design to …
Date:
December 13, 1976
Creator:
Smith, D. D.
Object Type:
Report
System:
The UNT Digital Library
Soviet paper on laser target heating, symmetry of irradiation, and two-dimensional effects on compression
Included is a paper presented at the Annual Meeting of the Plasma Physics Division of the American Physical Society in San Francisco on November 19, 1976. The paper discusses some theoretical problems of laser target irradiation and compression investigated at the laboratory of quantum radiophysics of Lebedev Physical Institute. Of significant interest was the absorption and reflection of laser radiation in the corona plasma of a laser target. (MOW)
Date:
December 13, 1976
Creator:
Sahlin, H. L.
Object Type:
Report
System:
The UNT Digital Library
Texas Turkey Poults: For Week Ending December 8, 1979
Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending November 10 to the week ending December 8, during 1979 for turkey eggs set and poults hatched.
Date:
December 13, 1979
Creator:
Texas Crop and Livestock Reporting Service
Object Type:
Report
System:
The Portal to Texas History
Texas Preventable Disease News, Volume 46, Number 50, December 13, 1986
Newsletter of the Texas Bureau of Disease Control and Epidemiology discussing the news, activities, and events of the organization and other information related to health in Texas.
Date:
December 13, 1986
Creator:
Texas. Bureau of Disease Control and Epidemiology.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History