Collection
Office of Scientific & Technical Information Technical Reports
277
Congressional Research Service Reports
109
Texas Patents
58
Government Accountability Office Reports
31
Texas Attorney General Opinions
25
Texas State Publications
13
Texas Register
10
Technical Report Archive and Image Library
8
TRAIL Microcard Collection
4
Texas Laws and Resolutions Archive
3
7 More
Degree Department
Country
540 Matching Results
Results open in a new window/tab.
Automobile-Pump
Patent for an automobile pump. This invention is designed for quick mounting and dismounting in order to lift an automobile to remove its tires. Illustrations included.
Date:
February 22, 1910
Creator:
Goeth, Richard Anton
Object Type:
Patent
System:
The Portal to Texas History
Combined Music-Rack and Front Panel for Pianos
Patent for a music rack and front panel for pianos. Illustrations included.
Date:
February 22, 1910
Creator:
Norcross, Levi Watson
Object Type:
Patent
System:
The Portal to Texas History
(HFR-B1 experiment reporting and capsule disassembly)
The traveler visited the Joint Research Centre (JRC), Petten, The Netherlands, the Forschungszentrum GmbH (KFA), Juelich, Germany; and the Zentralinstitut fuer Kernforschung (ZfK), Rossendorf, Germany, during the period January 28 through February 9. At JRC, the analysis of the experiment HFR-B1 was discussed; a new schedule for issuance of the final data report was established. Other discussions at JRC concerned the capabilities of Petten to conduct two reactor experiments being proposed under the US/FRG cooperative program and the initial results of a proof test of Germany fuel spheres. At KFA, the main emphasis was on the disassembly of capsules 2 and 3 of the HFR-B1 experiment and agreement on the examinations and tests to be conducted with the disassembled components. The disassembly of capsule 3 was observed. Extensive discussions were conducted on the work, both experimental and analytical, being conducted in the Institut fuer Sicherheitsforschung und Reaktor Technologie. A major portion of the experimental work is being conducted at ZfK and a visit to this laboratory, sponosored by the KFA, was made on February 6 and 7. Cooperation with the US on the experimental and analytical work in the safety area was strongly emphasized. 1 tab.
Date:
February 22, 1991
Creator:
Myers, B.F.
Object Type:
Report
System:
The UNT Digital Library
DSP: A detailed spectroscopy postprocessor for H-, He-, and Li-like ions
A detailed plasma spectroscopy postprocessor for H-, He-, and Li-like ions with 6 {le} Z {le} 26 has been constructed. The structure of the code and the physics contained within it will be described and a sample application given. 15 refs., 5 figs.
Date:
February 22, 1991
Creator:
Keane, C.J.; Lee, R.S. (Lawrence Livermore National Lab., CA (USA)) & Grandy, J.P. (Massachusetts Inst. of Tech., Cambridge, MA (USA))
Object Type:
Article
System:
The UNT Digital Library
Evaluation, design, development and delivery of a 1200 kV prototype termination. First technical progress report, September 28, 1978-January 31, 1979
The conceptual design and material study, Task 1 of this project is nearing completion. The primary objective of problem definition, in the form of a preliminary design specification, is complete. Several innovative concepts are being explored and compared. By the end of Task 1, the many alternative concepts will be narrowed considerably so that model studies of the most promising candidates may commence.
Date:
February 22, 1979
Creator:
Billings, J. S.; Neri, Z.; Meyer, J. R.; Berkebile, L. E. & English, W. A.
Object Type:
Report
System:
The UNT Digital Library
Feasibility study for Boardman River hydroelectric power. Final report
The feasibility of generating additional hydroelectric power from five consecutive existing dams located on the Boardman River in Grand Traverse County and Traverse City, Michigan, was investigated. The potential hydropower production capabilities, in terms of base load power and peak load power, the legal-institutional-environmental constraints, and the economic feasibility, including capital investment, operating costs and maintenance costs, were evaluated for each of the five dam sites individually and as a series of co-dependent facilities. The impact of installing fish passages at each site was analyzed separately. The feasibility assessment utilized the present worth analytical method, considering revenue based on thirty mills/kWh for power, 0.4% general economy escalation rate, and a 6% net income to the municipal utility. The sensitivity of fuel costs increasing at a different rate than the general price-escalation was tested by allowing the increase in fuel costs to vary from 3 to 8% per year. Assuming fuel costs increase at the same rate as the general economy, it is feasible to update, retrofit, renovate, and install hydroelectric generating capacity at Sabin, Boardman and Brown Bridge. Rehabilitation of Union Street and Keystone is also feasible but somewhat less attractive. Operating the dams as a co-dependent system has environmental …
Date:
February 22, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Modeling the Longitudinal Wall Impedance Instability in Heavy Ion Beams Using an R-Z PIC Code
The effects of the longitudinal wall impedance instability in a heavy ion beam are of great interest for heavy ion fusion drivers. We are studying this instability using the R-Z thread of the WARP PIC code. We describe the code and our model of the impedance due to the accelerating modules of the induction LINAC as a resistive wall. We present computer simulations which illustrate this instability. 2 refs., 2 figs., 1 tab.
Date:
February 22, 1991
Creator:
Callahan, D. A.; Langdon, A. B.; Friedman, A.; Grote, D. P. & Haber, I.
Object Type:
Article
System:
The UNT Digital Library
Subsystem response determination for the US NRC Seismic Safety Margins Research Program
The initial portion of the task described deals with a definition of the state-of-the-art of seismic qualification methods for subsystems. Too facilitate treatment of this broad class of subsystems, three classifications have been identified: multiply supported subsystems (e.g., piping systems); mechanical components (e.g., valves, pumps, control rod drives, hydraulic systems, etc.); and electrical components (e.g., electrical control panels). Descriptions of the available analysis and/or testing techniques for the above classifications are sought. The results of this assessment will be applied to the development of structural subsystem transfer functions.
Date:
February 22, 1979
Creator:
Johnson, J. J.
Object Type:
Article
System:
The UNT Digital Library
Small-scale hydroelectric power in Watauga County, North Carolina
We have completed both the installation of the demonstration project and the assessment of the stream flows in Watauga County, North Carolina. The 17 kW, high head (178'), project on Laurel Creek in Watauga County has produced about 60,000 kWh over its first nine months of operation despite some electrical and other problems. It is currently producing 16 to 17 kW on a steady basis and is functioning as a popular site for visits by people who plan to install their own similar plants in areas throughout the Southeast. The stream assessment proved to be less satisfactory than the subsequently developed method for predicting long term stream flows. The latter method has been applied to all western North Carolina and this report presents its general conclusions.
Date:
February 22, 1983
Creator:
Ayers, H G
Object Type:
Report
System:
The UNT Digital Library
High resolution positron Q-value measurements and nuclear structure studies far from the stability line. Progress report, July 1, 1979-June 30, 1980. [Dept. of Physics and Astronomy, Univ. of South Carolina, Columbia]
This document represents a progress report and renewal proposal for the contract DEAS 09 79 ER10434 between the USDOE and USC. During the time from 1 July 1979 to 1 March 1980, the large 35% intrinsic Ge detector was purchased and tested, and the new hyperpure Ge detector for positron end-point-energy measurements was designed and fabricated by ORTEC. It was delivered just prior to January 1, 1980. Measurements using this special equipment began in January 1980. During this period, a new effort in the measurement of short nuclear lifetimes was completed, and nuclear structure measurements of /sup 206/Rn nd /sup 208/Rn were completed. The results of these efforts are described in the text. A search for the Post Doctoral Research Associate was started last summer and the position will be filled on or about 1 March 1980. The first experiments to measure positron end-point-energies were proposed to the ORIC scheduling committee, and measurements will begin in March 1980. Theoretical efforts describe accurately the interference of annihilation radiation with positron end-point-energy measurements were begun.
Date:
February 22, 1980
Creator:
Avignone, F. T. III
Object Type:
Report
System:
The UNT Digital Library
Wind tunnel test of 1/30 scale heliostat field array model. Test report
From 9 January through 20 January 1978, Honeywell conducted a wind tunnel test on a 1/30 scale partial heliostat field. The heliostats were per Honeywell's design developed under the 10 megawatt central receiver pilot electrical power plant subsystem research experiment contract. Likewise, the scaled section of the field geometry duplicated the proposed circular layout. Testing was conducted at the Georgia Institute of Technology's 9 foot subsonic tunnel. The objective of the test was to ascertain from a qualitative standpoint the field effects upon wind loading within a heliostat field. To accomplish this, numerous pressure tap measurements at different heights and at different field positions were taken with varying wind speeds, fence designs, and heliostat gimbal orientations. The Department of Energy specified boundary layer profile was also scaled by 1/30 in order to simulate the total wind effects as accurately as possible taking into account the potentially severe scaling or Reynolds number effects at a 1/30 scale. After initial model set-up within the tunnel and scaled boundary layer generated, 91 separate runs were accomplished. The results do demonstrate the high sensitivity of wind loading upon the collector field due to the actual heliostat orientation and fence geometry. Vertical pressure gradients within …
Date:
February 22, 1978
Creator:
Brown, G. L.
Object Type:
Report
System:
The UNT Digital Library
Cryogenic structural materials for superconducting magnets
This paper reviews research in the United States and Japan on structural materials for high-field superconducting magnets. Superconducting magnets are used for magnetic fusion energy devices and for accelerators that are used in particle-physics research. The cryogenic structural materials that we review are used for magnet cases and support structures. We expect increased materials requirements in the future.
Date:
February 22, 1985
Creator:
Dalder, E.N.C. & Morris, J.W. Jr.
Object Type:
Article
System:
The UNT Digital Library
Status of the LLL tandem-shaped charge designs
Lawrence Livermore Laboratory has been engaged in the design of tandem or multistage shaped charges for several years. Analytical and experimental work that focuses on how several aspects of tandem designs affect the jet characteristics is described. The work demonstrates the effectiveness of analytical methodology to specify liner geometries to achieve jets with controlled velocity gradients and high overall efficiency. It also shows that jet clippers and other ancillary components, along with controlled liner thickness, help make clean breaks between the jet and the slug and facilitate insertion of a second jet. Second-stage initiation and interjet time delays are discussed.
Date:
February 22, 1979
Creator:
Godfrey, C.S. & Jandrisevits, R.A.
Object Type:
Article
System:
The UNT Digital Library
Model building, control and optimization of large scale systems
This report covers the research progress made during the calendar year 1992. The new results obtained during this period are described, keyed to the references listed on the last two pages of this report.
Date:
February 22, 1993
Creator:
Basar, T.
Object Type:
Report
System:
The UNT Digital Library
Study of II--IV--V/sub 2/ chalcopyrite semiconductors for solar cell applications. Quarterly report No. 3, April 1, 1977--June 30, 1977. [ZnSiAs/sub 2/]
The activities and results of the chalcopyrite materials synthesis effort are described. Deposition of ZnSiAs/sub 2/ on 100 Ge and 111 Si substrates was continued with emphasis on identifying correlations between growth system settings and layer properties such as morphology, uniformity, growth rate, stoichiometry, and crystal structure. Results are discussed.
Date:
February 22, 1978
Creator:
Littlejohn, M.A.
Object Type:
Report
System:
The UNT Digital Library
Study of II--IV--V/sub 2/ chalcopyrite semiconductors for solar cell applications. Quarterly report No. 4, July 1, 1977--September 30, 1977
Research was directed towards the synthesis and characterization of the n-type deposits. The conditions required for growth of the n-type layers were found and the emphasis was then returned to the problem of obtaining thicker layers of p-ZnSiAs/sub 2/ via higher growth rates. The conditions required for consistent epitaxial growth were also pursued. Results are presented.
Date:
February 22, 1978
Creator:
Littlejohn, M.A.
Object Type:
Report
System:
The UNT Digital Library
Organosiloxane polymer concrete for geothermal environments
The feasibility of using the products of free-radical copolymerization of modified organosiloxane in the formation of a thermally stable and chemically resistant polymer concrete for use in geothermal environments has been demonstrated. Specimens have been produced using mixtures of organosiloxane containing pendant vinyl groups and styrene or different silicon fluids as a comonomer in conjunction with a free-radical initiator and several aggregate materials. The use of these monomers in conjunction with materials such as SiO/sub 2/ and portland cement to form polymer concrete results in composites with high compressive strength (80 to 100 MPa) and thermal and hydrolytic stability. The results from studies to determine the effect of variables such as sand-particle size, type of cement, and sand-cement ratio are discussed.
Date:
February 22, 1979
Creator:
Zeldin, A.; Kukacka, L. E.; Fontana, J. & Carciello, N.
Object Type:
Article
System:
The UNT Digital Library
Mechanical behavior of 304 LN weldments
Mechanical properties of various weld configurations for 304 LN stainless steel are reported. The results include Charpy V-notch, tensile, and fracture toughness data. The determinations were made at temperatures of 300, 77, and 4.2/sup 0/K. Each of the three types of mechanical evaluations are treated separately.
Date:
February 22, 1979
Creator:
Jelinek, F.J.
Object Type:
Report
System:
The UNT Digital Library
Newsmap. Monday, February 22, 1943 : week of February 12 to February 19, 180th week of the war, 62nd week of U.S. participation
Front: Text describes action on various war fronts: Russia, New Guinea, Solomons, China, Pacific and Far East, French fleet, North Africa. Large world map is keyed to text. Includes table: Great Circle Distances in Statute Miles. Inset maps show Tunisia and Russia. Includes 8 photographs. Back: Poster provides recognition cues and front and profile drawings of Allied and Axis light tanks and self-propelled weapons. Includes range scale.
Date:
February 22, 1943
Creator:
[United States.] Army Orientation Course.
Object Type:
Poster
System:
The UNT Digital Library
Ant Trap.
Patent for a new and improved ant trap. This design consists in "[a]n ant-trap, comprising the body and the inward-projecting tubes having the protecting-caps on their inner ends, the outer faces of the caps being convex and provided with apertures of greater diameter than the bore of the inner end of the tube" (lines 90-95).
Date:
February 22, 1887
Creator:
McCallum, Walter Randolph
Object Type:
Patent
System:
The Portal to Texas History
Car Truck.
Patent for a new and improved car-truck. This design "consists in providing the lateral guide-wheels with long axles which are inclined at an angle of about forty-five degrees to the ordinary truck-wheels, and in providing the bolsters of the truck with a central opening, and otherwise constructing the same with a view to attachment of such inclined axles" (lines 17-24).
Date:
February 22, 1881
Creator:
Beaumont, Franklin, Jr.
Object Type:
Patent
System:
The Portal to Texas History
Animal Shears.
Patent for new and improved animal shears. This design calls for a spring with eyes at the ends so that the handles of individual blades may be inserted through them. Then, nuts fasten the individual blades to the spring, which makes sharpening easier and breakage less likely.
Date:
February 22, 1881
Creator:
Benavides, Cristobal & Arthur, Joshua P.
Object Type:
Patent
System:
The Portal to Texas History
Buckle.
Patent for a new and improved buckle. This design utilizes a knob in addition to the tongue to hold the strap more securely, preventing slippage.
Date:
February 22, 1881
Creator:
Owen, Abram
Object Type:
Patent
System:
The Portal to Texas History
Texas Register, Volume 16, Number 14, Pages 1107-1242, February 22, 1991
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 22, 1991
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History