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Day
Energy and technology review
Three areas of research are discussed: microcomputer technology applied to inspecting machined parts to determine roundness in ultraprecision measurements; development of an electrolytic technique for preparing dinitrogen pentoxide as a potentially less expensive step in the large-scale synthesis of the explosive HMX; and the application of frequency conversion to short wavelengths in the Novette and Nova lasers to improve the performance of inertial-confinement fusion targets. (GHT)
Date:
August 1, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Cryogenic recovery analysis of forced flow supercritical helium cooled superconductors
A coupled heat conduction and fluid flow method of solution was presented for cryogenic stability analysis of cabled composite superconductors of large scale magnetic coils. The coils are cooled by forced flow supercritical helium in parallel flow channels. The coolant flow reduction in one of the channels during the spontaneous recovery transient, after the conductor undergoes a transition from superconducting to resistive, necessitates a parallel channel analysis. A way to simulate the parallel channel analysis is described to calculate the initial channel inlet flow rate required for recovery after a given amount of heat is deposited. The recovery capability of a NbTi plus copper composite superconductor design is analyzed and the results presented. If the hydraulics of the coolant flow is neglected in the recovery analysis, the recovery capability of the superconductor will be over-predicted.
Date:
August 1, 1977
Creator:
Lee, A. Y.
Object Type:
Article
System:
The UNT Digital Library
Doppler Broadening of the Low Energy Total Neutron Cross Section of Pu-241
None
Date:
August 1, 1961
Creator:
Simpson, O. D. & Marshall, N. H.
Object Type:
Report
System:
The UNT Digital Library
Wire rope improvement program. Fiscal years 1979 to 1980. Interim report
This report describes the work performed by the Pacific Northwest Laboratory and its subcontractor Battelle Columbus Laboratories on the Wire Rope Improvement Program during FY-1979 and the first half of FY80. The program, begun in 1975 by the US Bureau of Mines, was transferred to the US Department of Energy (DOE) on October 1, 1978. Since that time, the DOE's Division of Solid Fuels Mining and Preparation has sponsored the program. To address identified problems and provide information from which behavior of large-diameter wire rope could be better understood, efforts in the following areas were undertaken: large-diameter rope testing, small-diameter rope testing, data analysis and evaluation, wear and failure analysis, load sensor development, and technology transfer. Wire ropes 3/4 in., 1-1/2 in., and 3 in. in diameter were tested in bend-over sheave fatigue. Attempts were made to correlate fatigue life of these ropes. Limited field rope data were available to compare with test results. The modes of failure and wear in laboratory ropes were compared with those seen previously in field ropes. A load sensor was designed and ordered in FY79. It will be connected to the drag rope and jewelry of working draglines during the summer of FY80. Technology …
Date:
August 1, 1980
Creator:
Morgenstern, M. H.; Alzheimer, J. M.; Anderson, W. E.; Beeman, G. H.; Rice, R.C.; Strope, L. A. et al.
Object Type:
Report
System:
The UNT Digital Library
Dose-rate conversion factors for external exposure to photons and electrons
Dose-rate conversion factors for external exposure to photons and electrons have been calculated for approximately 500 radionuclides of potential importance in environmental radiological assessments. The dose-rate factors were obtained using the DOSFACTER computer code. The results given in this report incorporate calculation of electron dose-rate factors for radiosensitive tissues of the skin, improved estimates of organ dose-rate factors for photons, based on organ doses for monoenergetic sources at the body surface of an exposed individual, and the spectra of scattered photons in air from monoenergetic sources in an infinite, uniformly contaminated atmospheric cloud, calculation of dose-rate factors for other radionuclides in addition to those of interest in the nuclear fuel cycle, and incorporation of updated radioactive decay data for all radionuclides. Dose-rate factors are calculated for three exposure modes - immersion in contaminated air, immersion in contaminated water, and exposure at a height of 1 m above a contaminated ground surface. The report presents the equations used to calculate the external dose-rate factors for photons and electrons, documentation of the revised DOSFACTER computer code, and a complete tabulation of the calculated dose-rate factors. 30 refs., 12 figs.
Date:
August 1, 1981
Creator:
Kocher, David C.
Object Type:
Report
System:
The UNT Digital Library
Incentives and the siting of radioactive waste facilities
The importance of social and institutional issues in the siting of nuclear waste facilities has been recognized in recent years. Limited evidence from a survey of rural Wisconsin residents in 1980 indicates that incentives may help achieve the twin goals of increasing local support and decreasing local opposition to hosting nuclear waste facilities. Incentives are classified according to functional categories (i.e., mitigation, compensation, and reward) and the conditions which may be prerequisites to the use of incentives are outlined (i.e., guarantee of public health and safety, some measure of local control, and a legitimation of negotiations during siting). Criteria for evaluating the utility of incentives in nuclear waste repository siting are developed. Incentive packages may be more useful than single incentives, and nonmonetary incentives, such as independent monitoring and access to credible information, may be as important in eliciting support as monetary incentives. Without careful attention to prerequisites in the siting process it is not likely that incentives will facilitate the siting process.
Date:
August 1, 1982
Creator:
Carnes, S. A.; Copenhaver, E. D.; Reed, J. H.; Soderstrom, E. J.; Sorensen, J. H.; Peelle, E. et al.
Object Type:
Report
System:
The UNT Digital Library
Solar Energy System Performance Evaluation: seasonal report for Wormser, Columbia, South Carolina
The Wormser Solar Energy System located in a four unit townhouse apartment (5400 square feet) in Columbia, South Carolina was designed to provide 50% of the hot water and 70% of the space heating by the Wormser Scientific Corporation, Stamford, Connecticut. The Solar Energy System consists of 266 ft/sup 2/ of pyramidal optics, flat-plate liquid collectors, a solar window area of 1152 ft/sup 2/, a 2500 gallon thermal water storage tank, an energy transport system (water), heat exchangers, pumps, controls and four domestic hot water (DHW) tanks. Electrical elements in each domestic hot water tank provide necessary auxiliary energy for hot water. Four multifunctional heat pumps, supplied with solar heated water provide space heating energy to the apartments, collector freeze protection is provided through the location of the collectors inside the attic. The system with six modes of operation became oprational in February 1978. The following topics are discussed: system description, performance assessment, operating energy, energy savings, maintenance, summary and conclusions.
Date:
August 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Methods and Techniques of Fallout Studies Using a Particulate Simulant
The fallout hazard and protection factors in current use for large groups of buildings, i.e., urban residential areas, business districts, industrial complexes, government centers, Atomic Energy Commission facilities, and academic and medical institutions, are largely unsubstantiated by experimental evidence. These data are important for personnel protection on a national basis in the event of war and on a local basis in the event of certain types of nuclear accidents. The need for such information is discussed and methods for obtaining it are suggested. The methods suggested should provide a cross check of the data obtained on isolated structures under actual fallout conditions with the data from studies that made use of methods such as distributed point sources and a moving single-point source (as used in the Mobile Radiological Measurement Unit, Civil Effects Test Operations) to simulate actual fallout fields and with data from other studies in which predicted values of fallout protection were calculated from strictiy theoretical considerations. (auth)
Date:
August 1, 1960
Creator:
Lee, W. & Borella, H.M.
Object Type:
Report
System:
The UNT Digital Library
Exact integrability in quantum field theory
The treatment of exactly integrable systems in various branches of two-dimensional classical and quantum physics has recently been placed in a unified framework by the development of the quantum inverse method. This method consolidates a broad range of developments in classical nonlinear wave (soliton) physics, statistical mechanics, and quantum field theory. The essential technique for analyzing exactly integrable quantum systems was invested by Bethe in 1931. The quantum-mechanical extension of the inverse scattering method and its relationship to the methods associated with Bethe's ansatz are examined here. (RWR)
Date:
August 1, 1980
Creator:
Thacker, H.B.
Object Type:
Article
System:
The UNT Digital Library
Remote Plastic Bag Passout Unit for High-Level Radiochemical Operations
A system is designed for making remote sealed-bag passouts from a multicurie-level chemistry processing enclosure. The polyethylene bags are changed remotely without exposing contaminated surfaces while always maintaining a low leak rate seal. The system employs an interchange box (passout box) attached to the chemistry enclosure. Integrated with the box is a hydraulically operated jack that raises and lowers the bags, and a welder-cutter for sealing them. A single master-slave manipulator teamed with the above units handles all operations. (auth)
Date:
August 1, 1961
Creator:
Fleischer, E. S.; Parsons, T. C. & Howe, P. W.
Object Type:
Report
System:
The UNT Digital Library
Implementation of a hidden line and surface algorithm
The implementation of a 3-dimensional hidden line and surface algorithm discussed by Hamlin and Gear (NASA Langley Research Report 77-1) is described, and its advantages and disadvantages are examined. This algorithm is organized so that data can be preprocessed to speed display computations and so that the display is generated in a form suitable for a raster scan, refresh display. The version of the program described here is a hidden-line program, but the underlying algorithm is the same for both. 11 figures, 3 tables.
Date:
August 1, 1980
Creator:
Schweitzer, M.L.
Object Type:
Report
System:
The UNT Digital Library
Time and space dependency of radiative transfer in magnesium
Radiative transfer in a magnesium vapor has been studied. The experimental cell was designed to provide stable density measurements with a ..delta..lambda/sup -2/ variation with respect to the magnesium resonance line, which indicated pure Rayleigh scattering and no evidence of impurities. Total intensity measurements show the radiation field to be highly anisotropic, although somewhat less at late times. 8 refs., 7 figs. (WRF).
Date:
August 1, 1986
Creator:
Cooper, J.
Object Type:
Report
System:
The UNT Digital Library
X-Y spacial distribution experiments with Parmela or, what I did on my summer vacation
Experiments using the Parmela simulation program predict that the potentially uneven spacial distributions in the electron beam generated by laser emission from the photo cathode gun has no appreciable effect on the beam outcome when compared to a the more uniform thermionic gun. 23 figs., 4 tabs.
Date:
August 1, 1991
Creator:
Houston, J.R.
Object Type:
Report
System:
The UNT Digital Library
Accommodation project for physically restricted personnel. Phase II. Low back project
This report presents a course outline and its associated criteria for a Back Pain Prevention Program for Sandia National Laboratories.
Date:
August 1, 1982
Creator:
Young, L. L. & Mossman, P. B.
Object Type:
Report
System:
The UNT Digital Library
Dimensional Behavior of the Experimental Gas-Cooled Reactor Fuel Element at Elevated Temperatures
The Experimental Gas-Cooled Reactor (EGCR) fuel assemblies consist of a cluster of seven fuel elements contained in a graphite sleeve. Each element is composed of hollow cylindrical UO/sub 2/ pellets encapsulated in a type 304 stainless steel tube. The dimensional behavior of the fuel element was determined in an apparatus which simulated the thermal conditions predicted for the EGCR. Particular emphasis was placed on determining the relationship between the fuel temperature and axial expansion, the radial expansion characteristics of the fuel, the effect of cladding and fuel interaction on heating and subsequent cooling, the effect of rapid temperature excursions on the degradation of the fuel, and accumulative effects in the fuel element due to thermal cycling. An element that contains a radial gap between the cladding and the fuel pellet was found to respond to thermal cycling in the same manner that the individual components would react if subjected to the same thermal conditions and tested separately. Both the axial and radial expansion of the fuel pellet are very nearly a function of the maximum central temperature. The axial expansion of the fuel pellet column can be reduced appreciably at elevated temperatures by "dishing" the ends of the pellets. The …
Date:
August 1, 1961
Creator:
Martin, W. R. & Weir, J. R.
Object Type:
Report
System:
The UNT Digital Library
Energy from true in situ processing of Antrim Shale: extraction trials in an explosively fractured site
Three in situ energy extraction trials were conducted at The Dow Chemical Company's oil shale site, in Michigan's Sanilac County, near the town of Peck. Here the Antrim shale layer occurs between 1200 and 1400 feet underground. The trials began on October 14, 1979, and ended on April 1, 1980. The three trials, lasting 7, 60 and 17 days respectively, were conducted in a formation prepared by explosive fracturing. Ignition energy was generated with a methane burner. Some energy in the form of a dilute fuel gas (5 to 50 btu/scf) was recovered in each trial but upon ignition drastic decreases in flow communication occurred between injection and production wells. That problem prevented the planned exploration of techniques which would raise the energy value of the production gas. Upon cool down of the formation after each trial, air permeability tests showed inter-well communication levels returning to near preburn levels. Thermal expansion is the most likely cause of the reduced permeability experienced under retorting conditions.
Date:
August 1, 1980
Creator:
VanDerPloeg, M.L.; Peil, C.A.; Kinkel, C.G.; Pihlaja, R.K.; Murdick, D.A.; Frost, J.R. et al.
Object Type:
Report
System:
The UNT Digital Library
NDA technology for uranium resource evaluation. Progress report July 1-December 31, 1979. [Gamma spectra calculations; field prototype photoneutron logging probe]
This report describes work performed during the time period from July 1, 1979 to December 31, 1979, on the contract for Nondestructive Nuclear Analysis (NDA) Technology for Uranium Resource Evaluation in Group Q-1. Calculational effort was focused on improving the accuracy with which detector response function maps can be generated for subsequent enfolding with ONETRAN angular flux data. Experimental effort was highlighted by a field test of the prototype photoneutron logging probe at the Grand Junction DOE calibration facility. The probe demonstrated adequate durability in the field and sufficient sensitivity to uranium to function at competitive logging speeds.
Date:
August 1, 1980
Creator:
Evans, M.L.
Object Type:
Report
System:
The UNT Digital Library
Site insolation and wind power characteristics: technical report western region (north section)
This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Western Region (North Section) of the US Historic data (SOLMET), at 21 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation is related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal. Also, joint probability distribution tables are constructed showing the number of occurrences, out of a finite sample size, of daily average solar and wind power within selected intervals, by month. Information of this nature is intended as an aid to preliminary planning activities for the design and operation of solar and wind energy utilization and conversion systems.
Date:
August 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Georgetown University atmospheric fluidized bed boiler cogeneration system
This report presents the results of one year of operation of the cogeneration system capability of the Georgetown University coal- fired, atmospheric fluidized-bed (AFB) boiler. The AFB was designed and installed under a separate contract with the US Department of Energy. The AFB project funded by DOE to demonstrate that high sulfur coal could be burned in an environmentally acceptable manner in a urban environment such as Georgetown. In addition, operational data from the unit would assist the industry in moving directly into design and construction of commercially warranted industrial size AFB boilers. 9 figs., 3 tabs.
Date:
August 1, 1991
Creator:
Podbielski, V. & Shaff, D.P.
Object Type:
Report
System:
The UNT Digital Library
Photoemission from solids: the transition from solid-state to atomic physics
As the photon energy is increased, photoemission from solids undergoes a slow transition from solid-state to atomic behavior. However, throughout the energy range h..nu.. = 10 to 1000 eV or higher both types of phenomena are present. Thus angle-resolved photoemission can only be understood quantitatively if each experimenter recognizes the presence of band-structure, photoelectron diffraction, and photoelectron asymmetry effects. The quest for this understanding will build some interesting bridges between solid-state and atomic physics and should also yield important new insights about the phenomena associated with photoemission.
Date:
August 1, 1980
Creator:
Shirley, D.A.
Object Type:
Article
System:
The UNT Digital Library
Site insolation and wind power characteristics: technical report western region (south section)
This phase of the Site Insolation and Wind Power Characteristics Study was performed to provide statistical information on the expected future availability of solar and wind power at various sites in the Western Region (South Section) of the US Historic data (SOLMET), at 22 National Weather Service stations with hourly solar insolation and collateral meteorological information, were interrogated to provide an estimate of future trends. Solar data are global radiation incident on a horizontal surface, and wind data represent wind power normal to the air flow. Selected insolation and wind power conditions were investigated for their occurrence and persistence, for defined periods of time, on a monthly basis. Global horizontal insolation is related to inclined surfaces at each site. Ratios are provided, monthly, for multiplying global insolation to obtain insolation estimates on south-facing surfaces inclined at different angles with respect to the horizontal. Also, joint probability distribution tables are constructed showing the number of occurrences, out of a finite sample size, of daily average solar and wind power within selected intervals, by month. Information of this nature is intended as an aid to preliminary planning activities for the design and operation of solar and wind energy utilization and conversion systems.
Date:
August 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Measurement of Inclusive Eta Production in e/sup +/e/sup -/ Interactions Near Charm Threshold
The inclusive cross section for eta production in e/sup +/e/sup -/ interactions near charm threshold was measured by use of the Crystal Ball detector at SPEAR. By comparison of the inclusive eta production above and below charm threshold the following limits were obtained: R(e/sup +/e/sup -/ ..-->.. F anti FX)BR(F ..-->.. eta x) < 0.3 (90% C.L., E/sub cm/ < 4.5 GeV); BR(D ..-->.. eta x) < 0.13 (90% C.L., averaged over charged and neutral D components of the psi''). 4 figures, 1 table.
Date:
August 1, 1980
Creator:
Porter, F. C.
Object Type:
Article
System:
The UNT Digital Library
Painter Street Overcrossing: Linear-elastic finite element dynamic analysis
Painter Street Overcrossing is a two span continuous box girder bridge Highway 101 near Rio Del, California. It has been heavily instrumented with strong motion accelerometers by the California Department of Mines and Geology Strong Motion Instrumentation Program. On 11/21/86, the response of the bridge to a magnitude 5.1 earthquake (epicentral distance 32 km) was measured. This report considers the data generated at stations six, seven, and eight, during this earthquake. Station six recorded the vertical accelerations at the midpoint of the long span. Station seven recorded the transverse accelerations at the top of the bent. Station eight recorded the vertical accelerations at the midpoint of the short span. Typically, seismic analysis is done with the aid of a linear-elastic finite element code. Damping is assumed to be viscous. This report summarizes the results of such an analysis using the commercial P.C. based program SAP90. This analysis conforms as closely as possible to a typical'' seismic analysis. It is intended to be used as basis for comparison against a non-linear analysis to be done using NIKE3D. This report contains detailed information about the models used to represent the bridge. The results of each analysis and discussions of the results are …
Date:
August 1, 1991
Creator:
Salveson, M.W.
Object Type:
Report
System:
The UNT Digital Library
Multilayer optical elements for generation and analysis of circularly polarized x-rays
Calculations of the relative phase changes of {sigma} and {pi} electric field components on Bragg reflection from and transmission through multilayers are presented. Large relative phase changes can be calculated in certain cases, which may lead to utility of multilayers as quarter-wave plates for generation and analysis of circularly polarized soft x-radiation. Similar behavior may be expected for perfect crystals in the hard x-ray range. 24 refs., 4 figs.
Date:
August 1, 1989
Creator:
Kortright, J.B. & Underwood, J.H.
Object Type:
Article
System:
The UNT Digital Library