Collection
Office of Scientific & Technical Information Technical Reports
2,489
Texas State Publications
305
Technical Report Archive and Image Library
244
Texas Attorney General Opinions
154
Texas Register
82
Office of Technology Assessment
56
Congressional Research Service Reports
44
Advisory Commission on Intergovernmental Relations
8
Federal Communications Commission Record
6
Government Comics
3
2 More
Serial/Series Title
United States Department of Energy Grand Junction Office Reports
141
GJBX
124
Texas Register
82
Argonne National Laboratory Reports
31
Texas Preventable Disease News
23
NUREG/CR
21
National Bureau of Standards Reports
19
Nuclear Regulatory Commission Reports
19
West Texas Project
16
Atomic Energy Commission Reports
15
137 More
Country
States
Decade
Month
Language
3,393 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
3,393
next
3-D treatment of convective flow in the earth's mantle
A three-dimensional finite-element method is used to investigate thermal convection in the earth's mantle. The equations of motion are solved implicitly by means of a fast multigrid technique. The computational mesh for the spherical problem is derived from the regular icosahedron. The calculation described use a mesh with 43,554 nodes and 81,920 elements and were run on a Cray X. The earth's mantle is modeled as a thick spherical shell with isothermal, free-slip boundaries. The infinite Prandtl number problem is formulated in terms of pressure, density, absolute temperature, and velocity and assumes an isotropic Newtonian rheology. Solutions are obtained for Rayleigh numbers up to approximately 10/sup 6/ for a variety of modes of heating. Cases initialized with a temperature distribution with warmer temperatures beneath speading ridges and cooler temperatures beneath present subduction zones yield whole-mantle convection solutions with surface velocities that correlate well with currently observed plate velocities. 8 references, 6 figures.
Date:
May 1, 1984
Creator:
Baumgardner, J.R.
Object Type:
Article
System:
The UNT Digital Library
4. pi. data of relativistic nuclear collisions. [Plastic ball]
During the past two years, complete events of relativistic nuclear collisions are being studied with the Plastic Ball, the first electronic nonmagnetic particle-identifying 4..pi.. spectrometer. It is well suited to handle the large multiplicities in these reactions and allows collection of data at a rate sufficient to make further software selections to look at rare events. The analysis of the data follows various lines covering topics like thermalization, stopping or transparency, cluster-production mechanism (--can it tell entropy), search for collective flow through various global analyzing methods that allow determination of the scattering plane, projectile fragmentation (--is there a bounce-off), pion distribution, two-particle correlations: Hanbury-Brown Twiss, and excited nuclear states (--nucleosynthesis at the freezeout point or from chemical equilibrium). We will cover in this contribution only two subjects: stopping and thermalization and cluster production.
Date:
May 1, 1983
Creator:
Gutbrod, H.H.; Gustafsson, H.A. & Kolb, B.
Object Type:
Article
System:
The UNT Digital Library
5 K neutron irradiation and thermal cycling of NbTi superconductors
Simulation experiments of magnet operating conditions in a fusion reactor are reported. After approximately half of the lifetime dose the results on a variety of NbTi superconductors show moderate changes of the critical current density j/sub c/ (approx. 10%), the percentage change of j/sub c/ is always larger at high fields (8 T) than at 5 T. After a rapid initial change the resistivity ratios of the Cu-stabilizer are found to decrease only slowly with increasing neutron fluence.
Date:
May 1, 1984
Creator:
Hahn, P.; Hoch, H.; Weber, H. W.; Birtcher, R. C. & Brown, B. S.
Object Type:
Article
System:
The UNT Digital Library
6. 4 Tesla dipole magnet for the SSC
A design is presented for a dipole magnet suitable for the proposed SSC facility. Test results are given for model magnets of this design 1 m long and 4.5 m long. Flattened wedge-shaped cables (''keystoned'') are used in a graded, two-layer ''cos theta'' configuration with three wedges to provide sufficient field uniformity and mechanical rigidity. Stainless steel collars 15 mm wide, fastened with rectangular keys, provide structural support, and there is a ''cold'' iron flux return. The outer-layer cable has 30 strands of 0.0255 in. dia NbTi multifilamentary wire with Cu/S.C. = 1.8, and the inner has 23 strands of .0318 in. dia wire with Cu/S.C. = 1.3. Performance data is given including training behavior, winding stresses, collar deformation, and field uniformity.
Date:
May 1, 1985
Creator:
Taylor, C.E.; Caspi, S.; Gilbert, W.; Meuser, R.; Mirk, K.; Peters, C. et al.
Object Type:
Article
System:
The UNT Digital Library
324 and 325 Building Hot Cell Cleanout Program: Air lock cover block refurbishment
The high-density concrete cover blocks shielding the pipe trench in the hot-cell air lock of the 324 Building Radiochemical Engineering Cells had accumulated fixed radioactivity ranging from 1100 to 22, 000 mrad/hr. A corresponding increase in the radiation exposure to personnel entering the air lock, together with ALARA concerns, led to the removal of the contaminated concrete surface with a hydraulic spaller and the emplacement of a stainless steel covering over a layer of grout. The resultant saving in radiation exposure is estimated to be 7200 mrad for personnel completing burial box runs for the 324 and 325 Building Hot Cell Cleanout Program. Radiation exposure to all staff members entering the air lock is now at least 50% lower. 3 refs., 22 figs., 1 tab.
Date:
May 1, 1989
Creator:
Katayama, Y.B.; Holton, L.K. Jr. & Gale, R.M.
Object Type:
Report
System:
The UNT Digital Library
1170-MW(t) HTGR-PS/C plant application-study report: alumina-plant application
This report considers the HTGR-PS/C application to producing alumina from bauxite. For the size alumina plant considered, the 1170-MW(t) HTGR-PS/C supplies 100% of the process steam and electrical power requirements and produces surplus electrical power and/or process steam, which can be used for other process users or electrical power production. Presently, the bauxite ore is reduced to alumina in plants geographically separated from the electrolysis plant. The electrolysis plants are located near economical electric power sources. However, with the integration of an 1170-MW(t) HTGR-PS/C unit in a commercial alumina plant, the excess electric power available (approx. 233 MW(e)) could be used for alumina electrolysis.
Date:
May 1981
Creator:
Rao, R.; McMain, A. T., Jr. & Stanley, J. D.
Object Type:
Report
System:
The UNT Digital Library
1170-MW(t) HTGR-PS/C plant application study report: Geismar, Louisiana refinery/chemical complex application
This report summarizes a study to apply an 1170-MW(t) high-temperature gas-cooled reactor - process steam/cogeneration (HTGR-PS/C) to an industrial complex at Geismar, Louisiana. This study compares the HTGR with coal and oil as process plant fuels. This study uses a previous broad energy alternative study by the Stone and Webster Corporation on refinery and chemical plant needs in the Gulf States Utilities service area. The HTGR-PS/C was developed by General Atomic (GA) specifically for industries which require both steam and electric energy. The GA 1170-MW(t) HTGR-PC/C design is particularly well suited to industrial applications and is expected to have excellent cost benefits over other energy sources.
Date:
May 1, 1981
Creator:
McMain, Jr., A. T. & Stanley, J. D.
Object Type:
Report
System:
The UNT Digital Library
1170-MW(t) HTGR-PS/C plant application study report: shale oil recovery application
The US has large shale oil energy resources, and many companies have undertaken considerable effort to develop economical means to extract this oil within environmental constraints. The recoverable shale oil reserves in the US amount to 160 x 10/sup 9/ m/sup 3/ (1000 x 10/sup 9/ bbl) and are second in quantity only to coal. This report summarizes a study to apply an 1170-MW(t) high-temperature gas-cooled reactor - process steam/cogeneration (HTGR-PS/C) to a shale oil recovery process. Since the highest potential shale oil reserves lie in th Piceance Basin of Western Colorado, the study centers on exploiting shale oil in this region.
Date:
May 1, 1981
Creator:
Rao, R. & McMain, A.T. Jr.
Object Type:
Report
System:
The UNT Digital Library
1170-MW(t) HTGR-PS/C plant application study report: SRC-II process application
The solvent refined coal (SRC-II) process is an advanced process being developed by Gulf Mineral Resources Ltd. (a Gulf Oil Corporation subsidiary) to produce a clean, non-polluting liquid fuel from high-sulfur bituminous coals. The SRC-II commercial plant will process about 24,300 tonnes (26,800 tons) of feed coal per stream day, producing primarily fuel oil plus secondary fuel gases. This summary report describes the integration of a high-temperature gas-cooled reactor operating in a process steam/cogeneration mode (HTGR-PS/C) to provide the energy requirements for the SRC-II process. The HTGR-PS/C plant was developed by General Atomic Company (GA) specifically for industries which require energy in the form of both steam and electricity. General Atomic has developed an 1170-MW(t) HTGR-PS/C design which is particularly well suited to industrial applications and is expected to have excellent cost benefits over other sources of energy.
Date:
May 1, 1981
Creator:
Rao, R. & McMain, A. T., Jr.
Object Type:
Report
System:
The UNT Digital Library
1170-MW(t) HTGR-PS/C plant application study report: tar sands oil recovery application
This report summarizes a study to apply an 1170-MW(t) high-temperature gas-cooled reactor - process steam/cogeneration (HTGR-PS/C) to tar sands oil recovery and upgrading. The raw product recovered from the sands is a heavy, sour bitumen; upgrading, which involves coking and hydrodesulfurization, produces a synthetic crude (refinable by current technology) and petroleum coke. Steam and electric power are required for the recovery and upgrading process. Proposed and commercial plants would purchase electric power from local utilities and obtain from boilers fired with coal and with by-product fuels produced by the upgrading. This study shows that an HTGR-PS/C represents a more economical source of steam and electric power.
Date:
May 1, 1981
Creator:
Rao, R. & McMain, Jr., A. T.
Object Type:
Report
System:
The UNT Digital Library
The 1980 Annual Report
The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses states and distressed communities.
Date:
May 1981
Creator:
United States. Advisory Commission on Intergovernmental Relations.
Object Type:
Book
System:
The UNT Digital Library
The 1981 Report
The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses states and distressed communities.
Date:
May 1981
Creator:
United States. Advisory Commission on Intergovernmental Relations.
Object Type:
Book
System:
The UNT Digital Library
1982 bibliography of atomic and molecular processes
This annotated bibliography includes papers on atomic and molecular processes published during 1982. Sources include scientific journals, conference proceedings, and books. Each entry is designated by one or more of the 114 categories of atomic and molecular processes used by the Controlled Fusion Atomic Data Center, Oak Ridge National Laboratory to classify data. Also indicated is whether the work was experimental or theoretical, what energy range was covered, what reactants were investigated, and the country of origin of the first author. Following the bibliographical listing, the entries are indexed according to the categories and according to reactants within each subcategory.
Date:
May 1, 1984
Creator:
Barnett, C. F.; Crandall, D. H.; Gilbody, H. B.; Gregory, D. C.; Kirkpatrick, M. I.; McDaniel, E. W. et al.
Object Type:
Report
System:
The UNT Digital Library
1983 & 1984 Gross Sales by County
A report on gross sales by each county in Texas by quarter and total annual sales for 1983 and 1984.
Date:
May 15, 1985
Creator:
Texas. Comptroller's Office.
Object Type:
Report
System:
The Portal to Texas History
1983 Texas Air control Board Summary of Total Suspended Particulate Data
Report documenting air quality measurements throughout the state of Texas for calendar year 1983, including a summary and information about specific pollutants.
Date:
May 19, 1986
Creator:
Texas Air Control Board
Object Type:
Report
System:
The Portal to Texas History
1985 consumer segmentation: Assessment of the market for conservation in the Northwest: Phase 2
This report presents information on consumer attitudes toward conservation, past and intended conservation behaviors, and utility-sponsored conservation program participation levels. The information was collected by means of random telephone surveys of households in Idaho, Oregon, Washington, and Western Montana. Pacific Northwest Laboratory (PNL) conducted analyses of the survey results for the Bonneville Power Administration (BPA) to obtain a better understanding of consumer attitudes and behaviors and to facilitate conservation program planning, design, and marketing.
Date:
May 1987
Creator:
Bailey, B. M.; Hattrup, M. P.; Nordi, R. T.; Shankle, S. A. & Ivey, D. L.
Object Type:
Report
System:
The UNT Digital Library
1985 Libby Reservoir Angler Census: May 13-October 31, 1987 [i.e. 1985] : Interim Report.
An intensive creel and economic survey was conducted on Libby Reservoir from May 13 through October 31, 1985. This research was part of a larger effort to quantify the existing reservoir fishery and the effects of dam operation on this fishery. Census techniques incorporated direct interviews and electronic car counters installed at all established boat ramp access sites. A total of 4243 angling party interviews, 2379 car counter interviews and 719 economic surveys were conducted on Libby Reservoir. Interviewed anglers fished for 52,146 hours. Estimated pressure was 518,916 hours or 93,500 angler days equivalent to 2.10 angler days per acre. Eight percent of the total estimated angler days or 7436 fishing grips occurred on the Canadian portion of the reservoir. Boat anglers expended over 96% of the total effort. Anglers caught an estimated 617,097 fish during the creel period, 97% (597,380 fish) of which were kokanee. The majority (98%) of the kokanee harvested were caught on the US portion of the reservoir. Harvest of Salmo spp. was estimated at 15,334 fish. Whitefish and brook trout harvest was estimated at 1273 and 48 fish, respectively. Nongame fish species were almost nonexistent in the creel and estimated harvest was less than 0.5% …
Date:
May 1, 1987
Creator:
Chisholm, Ian & Hamlin, Paul
Object Type:
Report
System:
The UNT Digital Library
1985 primary heating fuel use and switching: Assessment of the market for conservation in the Northwest: Phase 2
This report presents information on the types of primary heating fuels used in residences in the Pacific Northwest region and how the heating fuels affect the level of investment in energy conservation measures (ECMs) by occupants of the residences. The types of heating fuel switching that occurred during the past two years (1983-1985) is also presented. The information was collected from random telephone surveys of households in Idaho, Oregon, Washington, and western Montana. The Pacific Northwest Laboratory (PNL) conducted analyses of the survey results for the Bonneville Power Administration (BPA) to obtain a better understanding of consumer attitudes and behaviors and to facilitate conservation program planning, design, and marketing. This report covers the following hypotheses: (1) there is no relationship between investing in ECMs and the type of primary heating fuel used in a residence; and (2) there is no relationship between the decision to switch to a new primary heating fuel during 1983-1985 and the original type of primary heating fuel used in the residence.
Date:
May 1, 1987
Creator:
Hattrup, M. P.; Nordi, R. T. & Ivey, D. L.
Object Type:
Report
System:
The UNT Digital Library
1987 DOE review: First collider run operation
This review covers the operations of the first run of the 1.8 TeV superconducting super collider. The papers enclosed cover: PBAR source status, fixed target operation, Tevatron cryogenic reliability and capacity upgrade, Tevatron Energy upgrade progress and plans, status of the D0 low beta insertion, 1.8 K and 4.7 K refrigeration for low-..beta.. quadrupoles, progress and plans for the LINAC and booster, near term and long term and long term performance improvements.
Date:
May 1, 1987
Creator:
Childress, S.; Crawford, J.; Dugan, G.; Edwards, H.; Finley, D. A.; Fowler, W. B. et al.
Object Type:
Report
System:
The UNT Digital Library
1987 Neutron and gamma personnel dosimeter intercomparison study using a D₂O-moderated /sup 252/Cf source
The thirteenth Personnel Dosimetry Intercomparison Study (i.e., PDIS 13) was conducted during April 1987 as a joint effort by Oak Ridge National Laboratory's (ORNL) Dosimetry Applications Research Group and the Southwest Radiation Calibration Center at the University of Arkansas. A total of 48 organizations (34 from the US and 14 from abroad) participated in PDIS 13. Participants submitted a total of 1,113 neutron and gamma dosimeters for this mixed field study. The dosimeters were transferred by mail and were handled by experimental personnel at ORNL and the University of Arkansas. The type of neutron dosimeter and the percentage of participants submitting that type are as follows: TLD-albedo (49%), direct interaction TLD (31%), CR-39 (17%), film (3%). The type of gamma dosimeter and the percentage of participants submitting that type are as follows: Li/sub 2/B/sub 4/O/sub 7/, alone or in combination with CaSO/sub 4/, (69%), /sup 7/LiF (28%), natural LiF (3%). Radiation exposures in PDIS 13 were limited to 0.5 and 1.5 mSv from /sup 252/Cf moderated by 15-cm of D/sub 2/O. Traditional exposures using the Health Physics Research Reactor (HPRR) were not possible due to the fact that all reactors at ORNL, including the HPRR, were shutdown by order of …
Date:
May 1, 1989
Creator:
Swaja, R. E.; West, L. E.; Sims, C. S. & Welty, T. J.
Object Type:
Report
System:
The UNT Digital Library
3081/E processor and its on-line use
The 3081/E is a second generation emulator of a mainframe IBM. One of it's applications will be to form part of the data acquisition system of the upgraded Mark II detector for data taking at the SLAC linear collider. Since the processor does not have direct connections to I/O devices a FASTBUS interface will be provided to allow communication with both SLAC Scanner Processors (which are responsible for the accumulation of data at a crate level) and the experiment's VAX 8600 mainframe. The 3081/E's will supply a significant amount of on-line computing power to the experiment (a single 3081/E is equivalent to 4 to 5 VAX 11/780's). A major advantage of the 3081/E is that program development can be done on an IBM mainframe (such as the one used for off-line analysis) which gives the programmer access to a full range of debugging tools. The processor's performance can be continually monitored by comparison of the results obtained using it to those given when the same program is run on an IBM computer. 9 refs.
Date:
May 1, 1985
Creator:
Rankin, P.; Bricaud, B.; Gravina, M.; Kunz, P. F.; Oxoby, G.; Trang, Q. et al.
Object Type:
Article
System:
The UNT Digital Library
33rd geothermal coordinating group meeting
None
Date:
May 1, 1982
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
8MVA modulator/regulator for neutral beams
This paper describes very generally the modulator/regulator (Mod/Reg) being built for Transrex by Systems, Science and Software for use on the neutral beam power supplies that Transrex is building for General Atomic Company to power the neutral beam heating systems that will be used on the Doublet III fusion device. The Mod/Reg is required to provide an 80 kV, 100 A pulse for a second every 90 sec. The voltage is to be regulated to 3%, and in case of fault the pulse must be interrupted within 10 ..mu..sec. An additional requirement was that the total system have very low capacity such that the total energy stored would be less than 15 joules. This is a restriction imposed by the source designer to prevent destroying the source in case of an arc within the source.
Date:
May 1980
Creator:
Remsen, D. B., Jr. & Overett, Trevor H.
Object Type:
Article
System:
The UNT Digital Library
A15 multifilamentary superconductors by the infiltration process
The inherent brittleness of the A15 compounds, and the requirement for a filamentary morphology, led to a heavy reliance on a powder approach for the preparation of superconducting tapes and wires. The quench-age technique, a non-powder process, was employed for the niobium-aluminum system, following the special features of the equilibrium phase diagram. The powder approach proved particularly effective for binaries, such as Nb-Sn, and for the ternaries Nb(Al,Ge) and Nb(Al,Si). Two variations of the powder process were assessed. One involved the use of precompounded powder of the desired stoichiometry but required simultaneous application of heat and pressure. The second variation was the infiltration process. This process involves the preparation of a ductile niobium matrix containing a controlled network of interconnected pores which are subsequently infiltrated with liquid metals (Sn) or low melting-point eutectics (e.g., Al-Ge, Al-Si). The composite is then subjected to a thermomechanical treatment to form a multiply connected array of A15 filaments in a niobium matrix. Multifilamentary conductors, based on Nb/sub 3/Sn, Nb/sub 3/Al, Nb/sub 3/ (Al,Ge) and Nb/sub 3/ (Al,Si), were readily obtained. Nb/sub 3/Sn conductors made by the infiltration process exhibit a critical temperature (Tc) of 18.1 K and a critical current carrying capacity (I/sub c/) …
Date:
May 1, 1980
Creator:
Pickus, M.R.; Holthuis, J.T. & Rosen, M.
Object Type:
Article
System:
The UNT Digital Library