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Office of Scientific & Technical Information Technical Reports
315
Congressional Research Service Reports
133
Texas Patents
52
Government Accountability Office Reports
43
Technical Report Archive and Image Library
36
Texas Attorney General Opinions
36
National Advisory Committee for Aeronautics Collection
20
Texas Register
10
TRAIL Microcard Collection
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Equilibrium Adsorption of Krypton and Xenon on Activated Carbon and Linde Molecular Sieves
Equilibrium krypton and xenon adsorption isotherms were obtained for four varieties of charcoal and for Linde Molecular Sieves Types 4A and 5A, generally at 0, 25, and 60°c. Such data are of interest in connection with design and evaluation of adsorbers for radioactive noble gas fission products. The isotherms were fitted, by linear regression analysis, to straight-line forms of the Freundlich and Langmuir equations. The Freundlich linear equation gave the better fit and the parameters of this equation are presented for each of the isotherms. Also presented are the constants for an equation representing the temperature dependence of arbitrary adsorption coefficients, the coefficients having been calculated from the Freundlich isotherm parameters. Some aspects of the applicability and accuracy of these results are discussed.
Date:
February 14, 1961
Creator:
Ackley, R. D. & Browning, W. E., Jr.
Object Type:
Report
System:
The UNT Digital Library
A Useful Solution for Short Cylindrical Shells and Other Applications
The general solution to the basic differential equation d^4w/dy^4 +4w= -4f(y) is transformed from the primary form treated in most texts to an alternate form in which each integration constant corresponds to one edge condition at y=0. The relationships between the integration constants of the two forms are derived and the values for the transformed functions are tabulated. The particular solution is derived in general and given in unique form for various functional forms of f(y). Matrix notation is used throughout the derivations; however, a knowledge of matrix theory is not need for application of the results.
Date:
February 14, 1961
Creator:
Moore, S. E.
Object Type:
Report
System:
The UNT Digital Library
Examination of Irradiated Uranium-Chromium Alloy Slugs
Production Test 313-105-13-M authorized the irradiation of a uranium - 0.4 atomic per cent chromium alloy to determine the relative stability of this material during irradiation. Five tubes, each containing six four-inch alloy slugs, were irradiated to exposures ranging from 156 to 834 MWD/T. This report describes the results of the visual examination of the bare uranium alloy slugs and the results of the test to determine slug breaking strength. The breaking strength of both the U-Cr alloy slugs and the normal uranium control slugs was reduced by exposure in the pile. The breaking strength of those U-Cr alloy pieces not cracked or broken in the jackets before examination was consistently greater than the breaking strength of the normal uranium at all exposures.
Date:
February 14, 1955
Creator:
Kratzer, W. K.
Object Type:
Report
System:
The UNT Digital Library
Effect of Routing Upon Temperature of Cooling Stream
With discussion under way concerning power production by chain reacting piles, it becomes pertinent to consider the ration of the temperature of the hottest spot in the pile to the average exit temperature of the cooling stream. This is important because the temperature of the hottest spot in the pile is one of the limiting factors in determining the maximum power at which a pile can be operated. However, the higher the temperature of the emerging cooling stream, the more efficient can be the thermal engine operated by it. Thus the ideal situation is to have the average exit temperature of the cooling stream as near as possible to the hottest temperature of the hottest spot in the pile.
Date:
February 14, 1946
Creator:
Cahn, Albert S., Jr.
Object Type:
Report
System:
The UNT Digital Library
Pile Heat Exchanger Calculations
Abstract. Some idealized calculations (CP-807) relating to the design of heat exchangers for minimum holdup of pile liquid are presented in compact form to facilitate quick estimates. Their use is illustrated by application to a falling film type exchanger.
Date:
February 14, 1945
Creator:
Young, Gale Jay
Object Type:
Report
System:
The UNT Digital Library
Oil Well Screen.
Patent for a new oil-well screen that prevents sand from entering an oil or water well but will allow oil and water through.
Date:
February 14, 1922
Creator:
Dobson, John A.
Object Type:
Patent
System:
The Portal to Texas History
Can Opener
Patent for a can opener which cuts cleanly and rapidly around the outside wall of the can, so as to avoid jagged edges.
Date:
February 14, 1922
Creator:
Minor, Robert B.
Object Type:
Patent
System:
The Portal to Texas History
Gas Stove.
Patent for a gas stove that is "simple, inexpensive, durable and reliable" (lines 9-10). Gas will be distributed more evenly throughout the stove and better sealing prevents gas odors from escaping.
Date:
February 14, 1922
Creator:
Wood, Thomas E.
Object Type:
Patent
System:
The Portal to Texas History
Writing Pen.
Patent for a dip pen or nib pen, with innovations concentrating on the tip (nib). The tip is moderately sharp to glide over paper, bent for smooth writing and ink conservation, and stiff "to enable it to be used in making carbon copies" (lines 26-27).
Date:
February 14, 1922
Creator:
Block, Henry, 1875-1939
Object Type:
Patent
System:
The Portal to Texas History
Drill Bit
Patent for improvements in drill bits, particularly in the application used in drilling in soft formations, such as clay, gumbo, or similar material. The purpose of the invention is to provide a way to prevent the sticking of material to the drill and drill collar while the drilling operation is being performed.
Date:
February 14, 1922
Creator:
Childs, William L.
Object Type:
Patent
System:
The Portal to Texas History
Pneumatic Disk Gin.
Patent for an improved version of a pneumatic disk gin. It has been designed for "ginning fibrous material, such as seed cotton" (lines 13-14) and improves the separation of the cotton and the seeds with the use of its perforated disks.
Date:
February 14, 1922
Creator:
Garner, James C.
Object Type:
Patent
System:
The Portal to Texas History
Safety Apparatus.
Patent for vehicle to safely have the right of way when reaching a crossing first.
Date:
February 14, 1922
Creator:
Duran, Arturo
Object Type:
Patent
System:
The Portal to Texas History
Seed Cleaner
Patent for cleaning seeds. This invention will improve seed cleaning and catch unwanted seeds.
Date:
February 14, 1922
Creator:
Garner, James C
Object Type:
Patent
System:
The Portal to Texas History
Cotton Cleaner and Separator.
Patent for cotton cleaner and separator. This will allow cotton to be cleaned without twisting or tangling, while removing dust, dirt and leaves.
Date:
February 14, 1922
Creator:
Hillmann, Charles
Object Type:
Patent
System:
The Portal to Texas History
Texas Register, Volume 45, Number 7, Pages 973-1072, February 14, 2020
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:
February 14, 2020
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
V. Multiplying Lattices of the Hollow Type
A two-group approximation of the fission ratios and Pu production in an infinite hollow matrix is developed
Date:
February 14, 1951
Creator:
Brown, Harold
Object Type:
Report
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending June 30, 1951
Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation of the Chemistry Division of the Oak Ridge National Laboratory (ORNL). [From Abstract]
Date:
February 14, 1952
Creator:
Lind, S. C.; Boyd, G. E. & Bredig, M. A.
Object Type:
Report
System:
The UNT Digital Library
Gas laser cells: stress analysis of cylindrical cells with radial injection of electrons
The problem is to develop a design procedure for pressurized cylindrical excimer laser cells. Excitation of the pressurized laser gas is by a short pulse of high energy electrons injected through the cell wall. In traversing the wall, the electrons lose energy and heat the wall. Because of rapid gas heating, a shock wave is generated which produces an additional load on the wall. Selected for analysis is a simple, conservative model of a cylindrical cell pressurized to double the shock pressure. The hoop stress is given by the product of a coefficient, which accounts for the shock over pressure, and the classical hoop stress relation. The shock over pressure coefficient is linearly related to the volumetric energy deposition with slope inversely proportional to the product of initial gas density, specific heat, and temperature. The derived equation is applied to a design study of a selected range of laser parameters. The applicability of this simple analysis is discussed. Electron energy absorption curves for several metals are also presented.
Date:
February 14, 1975
Creator:
Lai, W.
Object Type:
Report
System:
The UNT Digital Library
IC inspection test masks: experimental results
None
Date:
February 14, 1977
Creator:
Ciarlo, D. R.
Object Type:
Report
System:
The UNT Digital Library
Synchrotron injectors based on high charge state ion sources
The performance of any injector contemplated to replace the electrostatic tandem accelerators some time in the future should evidently match or surpass the characteristics of the tandems. It is a fortunate coincidence that the performance of the BNL tandem satisfies in most respects the requirements of the proposed collider, although originally tandems were not built with this application in mind. Requests for heavy ion beams with parameters suitable for injection into the rings of a heavy ion collider have appeared rather recently, at a stage when the high charge state ion sources, which in principle are capable of producing many ion species, have not yet reached such a level of performance. Therefore, consideration of such sources as part of a future injector replacing the tandem accelerators will have to rely on the extrapolation of results from existing models, developed for a different purpose. At the same time, present and future collider requirements for heavy ion beams should serve as a stimulus for the development of sources producing ions with adequate charge states and intensities. Injectors based on such sources may present a better alternative than the tandem accelerators because a higher charge-to-mass ratio of ions from the source results in …
Date:
February 14, 1990
Creator:
Prelec, K.
Object Type:
Report
System:
The UNT Digital Library
ATD user's manual. [For unpacking, scaling, plotting, filtering, and statistical analysis of data]
The ATD code is a multi-purpose code which reduces data files produced by a digitizer. It contains all of the features for the basic unpacking, scaling, and plotting of digitized data files. More advanced capabilities are also available. Digital filtering, spectral analysis, and statistical analysis, among others, allow the engineer the capability to analyze and display time history data. In contrast to codes such as DYMEC, the data files are typically of high frequency and short duration, representing time spans on the order of seconds and frequency content in the tens of thousands of hertz. 1 figure.
Date:
February 14, 1977
Creator:
Shannon, A. W.
Object Type:
Report
System:
The UNT Digital Library
Bicycle Mobility Plan - Long Range Plan
Report describing the results of a transportation study in Bexar County, including "overall goals and objectives for bicycle mobility planning" (abstract) as well as an overview of existing conditions at the time of the study, recommendations and outlined steps for improvement, funding sources, and additional areas of consideration.
Date:
February 14, 1995
Creator:
Metro Systems Engineering
Object Type:
Report
System:
The Portal to Texas History
Texas Turkey Poults: For Week Ending February 9, 1980
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 during two years for turkey eggs set and poults hatched.
Date:
February 14, 1980
Creator:
Texas Crop and Livestock Reporting Service
Object Type:
Report
System:
The Portal to Texas History
Texas Preventable Disease News, Volume 47, Number 6, February 14, 1987
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:
February 14, 1987
Creator:
Texas. Bureau of Disease Control and Epidemiology.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History