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North Texas Institute of Educators on the Visual Arts: Progress Report, December 1, 1994 - June 1, 1995

Description: A North Texas Institute of Educators on the Visual Arts progress report from December 1, 1994 - June 1 , 1995 that lists NTIEVA achievements, major activities, future plans and meetings. Attached are appendix's of presentations to be held and school district participants.
Date: 1994-12-01/1995-06-01
Creator: North Texas Institute of Educators on the Visual Arts
Partner: UNT Libraries Special Collections
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The Ratio of Plutonium 239 to Uranium 235 Fission Cross Sections from 0.020 to 1.0 Electron Volts

Description: Foils of plutonium 239 and uranium 235 have been mounted back to back in a dual ionization fission chamber in the diffracted beam of the Hanford neutron crystal spectrometer. A quantity proportional to the ration of fission cross sections of Pu239 to U235 has been measured as a function of neutron energy from 0.020 to 1.0 electron volts. The results of this investigation are presented graphically in the text.
Date: December 1, 1953
Creator: Leonard, B. R., Jr.; Hauser, S. M. & Seppi, E. J.
Partner: UNT Libraries Government Documents Department
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Accurate Nuclear Fuel Burnup Analyses; Eighth Quarterly Progress Report, (September - November 1963)

Description: The objective of the Accurate Nuclear Fuel Burnup Analyses program is to develop more accurate methods for burnup analysis for general use than the current method of analysis of Ca-137 or Sr-90. The program will require from three to five years of effort.
Date: December 1, 1963
Creator: Rider, B. F.; Ruiz, C. P.; Luke, P. S., Jr.; Peterson, J. P., Jr. & Smith, F. R.
Partner: UNT Libraries Government Documents Department
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Analytical: Field notebook on Lamkang verb conjugation

Description: Handwritten notes on verb conjugations in Lamkang recording fieldwork conducted by Willem de Reuse with Daniel Tholung at the University of North Texas
Date: December 1, 2009
Creator: Tholung, Daniel
Partner: UNT College of Information
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Notebook of Lamkang notes NB7

Description: Handwritten notes of verb paradigms in Lamkang by Daniel Tholung when discussing with Willem de Reuse.
Date: December 1, 2009
Creator: Tholung, Daniel
Partner: UNT College of Information
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Storage of LWR (light-water-reactor) spent fuel in air

Description: An experimental program is being conducted at Pacific Northwest Laboratory (PNL) to determine the oxidation response of light-water-reactor (LWR) spent fuels under conditions appropriate to fuel storage in air. The program is designed to investigate several independent variables that might affect the oxidation behavior of spent fuel. Included are temperature (135 to 230{degree}C), fuel burnup (to about 34 MWd/kgM), reactor type (pressurized and boiling water reactors), moisture level in the air, and the presence of a high gamma field. In continuing tests with declad spent fuel and nonirradiated UO{sub 2} specimens, oxidation rates were monitored by weight-gain measurements and the microstructures of subsamples taken during the weighing intervals were characterized by several analytical methods. The oxidation behavior indicated by weight gain and time to form powder will be reported in Volume III of this series. The characterization results obtained from x-ray diffractometry, transmission electron microscopy, scanning electron microscopy, and Auger electron spectrometry of oxidized fuel samples are presented in this report. 28 refs., 21 figs., 3 tabs.
Date: December 1, 1989
Creator: Thomas, L. E.; Charlot, L. A.; Coleman, J. E. (Pacific Northwest Lab., Richland, WA (USA)) & Knoll, R. W. (Johnson Controls, Inc., Madison, WI (USA))
Partner: UNT Libraries Government Documents Department
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Coal technology program. Progress report, October 1976

Description: In the hydrocarbonization/residue carbonization work, run HC-8 was completed with the 20-atm bench-scale hydrocarbonizer in a recirculating fluidized bed mode. Runs RC-15 and RC-16 in the 1-atm residue carbonizer showed very encouraging results--it appears that the system may be sufficiently operable for material balance experiments to begin. In engineering support of in-situ gasification, a two-dimensional pyrolysis gas production mechanism assumed to explain data obtained with as-received coal samples, has been verified by utilizing specimens which were dried at 125/sup 0/C under vacuum prior to pyrolysis. Water tests to evaluate nucleation characteristics of a gas-fired potassium boiler were continued, as well as the design and fabrication of components that will be needed when tests begin with potassium. Work was begun on a fluidized-bed, coal-fired, alkali-metal-vapor, topping cycle project by compiling data on the properties of potassium and cesium and beginning furnace-boiler design studies. Two preliminary reports were completed for ERDA/FE review that summarized the status of conceptual design studies relating to a Critical Components Test Facility. In engineering studies and technical support, work was continued in process modeling and on the Process Research Digest. A project to survey industrial equipment capabilities was initiated. A preliminary draft of suggested generic environmental requirements for use in RFP's was completed.
Date: December 1, 1976
Partner: UNT Libraries Government Documents Department
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Preliminary measurements of the thermal conductivity of rocks from LASL geothermal test holes GT-1 and GT-2

Description: The conductivities on a number of dry rocks have been measured in an air environment. These experimental values are probably about 10 percent lower than the in situ values. Initial attempts to prepare ''wet'' rock samples (rocks saturated with water) have so far resulted in only ''damp'' rocks. Considerable effort will be required to characterize the crack system in ''solid'' rocks and to predict the probable conductivity values for in situ conditions.
Date: December 1, 1975
Creator: Sibbitt, W. L.
Partner: UNT Libraries Government Documents Department
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Dissolution rates of /sup 238/PuO/sub 2/ and /sup 239/PuO/sub 2/ in 1M perchloric acid

Description: The dissolution rate of /sup 238/PuO/sub 2/ and /sup 239/PuO/sub 2/ in 1M HClO/sub 4/ was measured over a period of 200 days. When equal (150-..mu..g/l) masses of the oxides were compared, /sup 238/Pu was found to be released approximately five times faster than /sup 239/Pu. At the 10-..mu..Ci/ml activity level, /sup 238/Pu was released 100 times faster than /sup 239/Pu. The difference in dissolution rates is attributed to the difference in alpha particle specific activity of the two materials which causes significantly greater radiation damage in /sup 238/PuO/sub 2/ than in /sup 239/PuO/sub 2/. The rate difference also may be affected by particle size and total oxide mass in the dissolution system. The results of these studies agree with data from earlier investigations in distilled water and simulated body fluid solvents.
Date: December 1, 1976
Creator: Matlack, G. M.; Patterson, J. H.; Nelson, G. B. & Waterbury, G. R.
Partner: UNT Libraries Government Documents Department
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High-/sup 240/Pu sector experiments in ZPPR assembly 4

Description: The complete high-/sup 240/Pu fuel experiment in ZPPR assembly 4 is reviewed. Results of criticality, enrichment, small-sample perturbation, sodium void, /sup 238/U Doppler, control rod substitution and reaction rate measurements are presented. Comparison of these measured values with calculated results are included where possible. The relationship between the ZPPR high-/sup 240/Pu fuel experiments and the results obtained in previous critical experience is considered.
Date: December 1, 1976
Creator: McFarlane, H F & Beck, C L
Partner: UNT Libraries Government Documents Department
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The project to design and develop an energy-related program for public housing residents: Final report

Description: This demonstration project studied how to minimize the costs associated with public housing tenants in standard public housing as well as under homeownership transfers. A related problem was how to graduate the tenants to another level of responsibility and self-sufficiency through resident business developments and training in energy-related fields. The goal that emanated was the design and development of an energy-related demonstration program that educates public housing residents, facilities indigenous business development where appropriate, and trains residents to provide needed services.
Date: December 1, 1986
Partner: UNT Libraries Government Documents Department
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Annual report for FY 1976 on project AN0115A: the migration of plutonium and americium in the lithosphere

Description: Studies have been carried out on the migration of plutonium and americium in solutions flowing through porous and crushed rock and through fissures. The migration process can be described in terms of the surface absorption of these elements. In addition, chemical effects on the absorption have been observed. One of these effects is possibly due to the presence of a plutonium polymer that migrates at a more rapid rate than normal plutonium.
Date: December 1, 1976
Creator: Fried, S; Friedman, A M; Hines, J J; Atcher, R W; Quarterman, L A & Volesky, A
Partner: UNT Libraries Government Documents Department
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Multichannel wave interferometry

Description: The analysis of multichannel wave interferometry for a variety of density profiles reveals that the phase shift as a function of horn position normalized to that through the center of the plasma, is relatively insensitive to K = n/sub o//n/sub c/ (the ratio of maximum density to cutoff density) when refraction effects are minimized. Thus, this ratio may be easily inverted to obtain a reasonably accurate measurement of the density profile even for values of K approaching 1.
Date: December 1, 1975
Creator: Hosea, J. C. & Jobes, F. C.
Partner: UNT Libraries Government Documents Department
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Characteristics of American coals in relation to their conversion into clean energy fuels. Quarterly technical progress report, July--September 1975

Description: Twenty-one coal samples have been collected and characterized. Sixty coals have been provided to other agencies at their request. The capability of controlling coal characteristics during preparation is being developed: large variations in volatile content occur within a given raw coal but, by controlling the preparation, a uniform product with the devised specifications can be produced. Studies have begun on the suitability of various coals and cokes for use in pressurized fixed bed gasifiers. Preliminary studies are being carried out on the feasibility of applying small angle x-ray scattering to the characterization of coal chars. Reactivity profiles and parameters for chars in air are markedly dependent upon the gaseous flow system used, indicating that char reactivity is determined by partial pressure of the reacting gas. Reactivities have been maximized by keeping the heat treatment temperature as low as possible, and allowing no soak time. The minerals kaolinite, dolomite, siderite, calcite, and pyrite are found not to be catalysts for the char-air reaction at 550/sup 0/C. The addition of coal to an oil-water-air emulsion considerably increases the heat flux from the flame to the water tubes during combustion. (auth)
Date: December 1, 1975
Creator: Spackman, W.; Davis, A.; Walker, P. L.; Lovell, H. L.; Essenhigh, R. H.; Vastola, F. J. et al.
Partner: UNT Libraries Government Documents Department
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Coal plasticity at high heating rates and temperatures

Description: The rapid-heating, fast response plastometer has been reassembled and restored to its working condition. The plastometer was calibrated with various viscosity standards. The ratio of the observed viscosity to the actual viscosity was found to range from 1.2 to 2.8. The higher observed viscosity values were attributed to friction and misalignment of the shearing disk. In addition, the viscosity readings varied from one run to another because the distance between the moving disk and the stationary plate could not be maintained constant. Use of a low friction bearing for the shearing disk's shaft and the cone-and-plate configuration have been suggested as remedies to these problems.
Date: December 1, 1990
Creator: Gerjarusak, S.; Peters, W. A & Howard, J. B.
Partner: UNT Libraries Government Documents Department
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Study of the manufacturing costs of lead--acid batteries for peaking power. Final report for the period ending Oct. 1976

Description: A detailed study was made of a postulated 1000-MWh per year lead--acid battery business dedicated to supplying a single design of 40-MWh peaking power batteries to electric utilities. State-of-the-art industrial technology is assumed, but the manufacturing facility and business organization is tailored to the one product. Analysis of the product costs and business expenses associated with such an operation indicates that substantially lower selling prices can be realized as compared with normal industrial battery pricing. Under the low-risk conditions assumed, the selling price would be $36.90/kWh at the 4-h rate. Advanced technology would reduce the cost to $31.62/kWh. 21 figures, 31 tables. (RWR)
Date: December 1, 1976
Partner: UNT Libraries Government Documents Department
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Reactor operation environmental information document

Description: The Savannah River Site (SRS) is a large United States Department of Energy installation on the upper Atlantic Coastal Plain of South Carolina. The SRS contains diverse habitats, flora, and fauna. Habitats include upland terrestrial areas, varied wetlands including Carolina Bays, the Savannah River swamp system, and impoundment related and riparian wetlands, and the aquatic habitats of several stream systems, two large cooling reservoirs, and the Savannah River. These diverse habitats support a large variety of plants and animals including many commercially or recreational valuable species and several rare, threatened or endangered species. This volume describes the major habitats and their biota found on the SRS, and discuss the impacts of continued operation of the K, L, and P production reactors.
Date: December 1, 1989
Creator: Wike, L. D.; Specht, W. L.; Mackey, H. E.; Paller, M. H.; Wilde, E. W. & Dicks, A. S.
Partner: UNT Libraries Government Documents Department
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Reactivity and reaction rate measurements in U--D/sub 2/O lattices with coaxial fuel

Description: Integral reaction rate parameters, intracell thermal neutron flux profiles, and material bucklings were measured for D/sub 2/O-moderated uniform lattices in the exponential facility at the Savannah River Laboratory. Two different slightly enriched coaxial uranium fuel assemblies were examined over a wide range of triangular lattice pitches. Integral parameters are reported for inner and outer fuel separately providing data for a more detailed and rigorous comparison with computation than has been previously available. Results are compared with RAHAB calculations using ENDF/B-IV cross sections. Large discrepancies in agreement between calculation and experiment, outside of experimental errors and uncertainties in the input cross sections, probably result from the resonance capture models used by RAHAB.
Date: December 1, 1976
Creator: Pellarin, D. J. & Morris, B. M.
Partner: UNT Libraries Government Documents Department
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Facies of ion bombarded surfaces of brittle materials. [Protons, deuterons, He ions]

Description: Materials were bombarded by protons, deuterons, and helium ions. The materials investigated were quartz; glasses; carbides and borides (SiC, B/sub 4/C, TiB/sub 2/); oxides and nitrides (magnorite, sapphire, spinel, Al/sub 2/O/sub 3/, Si/sub 3/N/sub 4/, ZrO/sub 2/, BaTiO/sub 3/); and miscellaneous (graphite, LiNbO/sub 3/, copper). Oberservations were of growth, reflectivity, blistering, surface ablation, and swelling. Calculations were made of the effects of a layer, of its gradual transformation, and of the introduction of a gas. It is concluded that: Radiation blistering is not a primary process. Observations of blister formation and exfoliation cannot be used to calculate the surface ablation rate. The primary process is the development of a microporous layer which causes swelling. Visible blisters are caused by fracturing by transverse stresses in this layer and may occur during the bombardment, or in some cases, much later, in storage. There is no evidence of extreme gas pressures in the blisters. When blisters develop, they may be stable under continued bombardment for a dose many times that at which they formed. The swelling is a better index of the effects than is the blistering, and must be associated in most cases with permeability to the gas. Behavior with protons and deuterons is similar, with helium different. All but quartz, vitreous silica, and Pyrex are impervious to hydrogen and deuterium; only dense barium crown glass, carbides, borides, oxides, and nitrides are impervious to helium. Quartz shows swelling caused by conversion to a vitreous product of much lower density but no porosity, while for the others, most of the swelling and surface growth is caused by porosity. Surface ablation by the blistering process may be reduced by initial porosity or by initial or subsequent surface fissuring. However, for impervious materials, surface damage by the introduction of porosity would continue. (DLC)
Date: December 1, 1975
Creator: Primak, W.
Partner: UNT Libraries Government Documents Department
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