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(Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)

Description: This report presents information concerning field procedures employed during the monitoring, well construction, well purging, sampling, and well logging at the Wright-Patterson Air Force Base. Activities were conducted in an effort to evaluate ground water contamination.
Date: October 1, 1991
Partner: UNT Libraries Government Documents Department
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STUDIES IN MICROMERITICS. II. THE DEPOSITION OF PARTICLES IN CIRCULAR CONDUITS DUE TO THERMAL GRADIENTS

Description: The deposition of particles from turbulent gas streams due to thermal gradients was predicted using a simplified flow medel. In the medels particle concentration was assumed constant in the turbulent region. The particle deposition velocity was taken to be the radial velocity of thermal - repulsion in the laminar sublayer. Temperature gradients in the laminar sublayer were calculated for constant wall temperature using the Reynoldss analogy. The loss magnilude of suspended particles from loss d… more
Date: October 1, 1961
Creator: Postma, A.K.
Partner: UNT Libraries Government Documents Department
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Delayed Failure Hydrogen Embrittlement of Zirconium. Summary Report, September 15, 1961 to September 14, 1962

Description: The extent to which zirconium and zirconium alloys exhibit delayed failure (static fatigue) as caused by a combination of absorbed hydrogen and applied stress was investigated. Susceptibility to time-dependent fracture was evaluated for unalloyed zirconium and Zircaloy-2 with 200 and 500 ppm hydrogen as well as for an experimental Zr Al-Sn-Mo alloy and the Canadian Zr-2.5Nb cladding material. For unalloyed zirconium and Zircaloy-2 containing up to 500 ppm hydrogen, no room-temperature, timedepe… more
Date: October 10, 1962
Creator: Weinstein, D. & Holtz, F. C.
Partner: UNT Libraries Government Documents Department
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DEVELOPMENT OF PLUTONIUM-BEARING FUEL MATERIALS. Progress Report, October 1-December 31, 1961

Description: Continued effort is reported on preparation and characterization of PuO/ sub 2/ and UO/sub 2/-- PuO/sub 2/ mixtures. Sintering and characterization of pellets for irradiation tests was emphasized, and efforts were also devoted to plasma torch production of spherical PuO /sub 2/ and coating of oxide materials. PuO/sub 2/ produced by the oxalate process from low concentration feed contains agglomerates which are not readily broken down, while that produced from normal feed contains larger agglome… more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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DEVELOPMENT OF PLUTONIUM-BEARING FUEL MATERIALS. Progress Report for Period January 1 through March 31, 1962

Description: During this reporting period, particular effort was of aced on powder blending and pellet sintering studies prior to irradiation sample fabrication, and, subsequently, the production and characterization of the pellets slated for irradiation. Also, PuO/sub 2/ and UO/sub 2/-PuO/sub 2/ characterization studies were continued, and new techniques are being developed. Specifically, dynamic moisture pickup determinations on PuO/sub 2/ were made in moist air, N, and CO/ sub 2/ atmospheres using a reco… more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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Characterization of the solid, airborne materials created when UF/sub 6/ reacts with moist air flowing in single-pass mode

Description: A series of experiments has been performed in which UF/sub 6/ was released into flowing air in order to characterize the solid particulate material produced under non-static conditions. In two of the experiments, the aerosol was allowed to stagnate in a static chamber after release and examined further but in the other experiments characterization was done only on material collected a few seconds after release. Transmission electron microscopy and mass measurement by cascaded impactor were used… more
Date: October 1, 1985
Creator: Pickrell, P. W.
Partner: UNT Libraries Government Documents Department
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Low Temperature Thermoluminescence of Gamma Irradiated Potassium Dihydrogen Phosphate

Description: Thermoluminescence in potassium dihydrogen phosphate (KDP) induced by Co/ sup 60/ gamma irradiation at liquid nitrogen temperature (-198 deg C) was investigated. Glow curves in the temperature range --196 to 0 deg C were measured for a series of gamma exposure dosages ranging from 10/sup 4/ roentgen to 5 x 10/sup 6/ roentgen. The heating rate used for glow curve measurements was 12 deg C per minute. Twice recrystallized Mallinckrodt reagent grade potassium dihydrogen phosphate, with a grain siz… more
Date: October 19, 1962
Creator: Sims, T. M.
Partner: UNT Libraries Government Documents Department
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Chemical Technology Division Unit Operations Section Monthly Progress Report, April 1962

Description: Bubble size measurements in the foam column showed that a spinnerette with 50 mu holes gave a nearly normal distribution of bubbles sizes while a coarse fritted glass gas sparger had a tail of large bubbles which did not fit the normal curve. A set of equations solvable by a finite difference technique are presented which completely describe the irreversible reaction rate of H/sub 2/ or CO with a fixed bed of CuO pellets. Radiation damage tests are in progress to evaluate plastics for the Trans… more
Date: October 1, 1962
Creator: Whatley, M. E.; Haas, P. A.; Horton, R. W.; Ryon, A. D.; Suddath, J. C. & Watson, C. D.
Partner: UNT Libraries Government Documents Department
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Mechanisms governing fine particulate emissions from coal flames

Description: During this reporting period the global experiments were concluded. The final activities under these experiments involved measuring mineral content of coals as a function of coal particle size. The principal activities during this quarter involved the mechanistic experiments. Three baseline coals were cleaned and two of these sized. The ash from these various cuts were sampled from a bench scale reactor. The ash size distributions were compared to distributions predicted by the breakup model.
Date: October 1, 1989
Creator: Newton, G. H.; Schieber, C.; Socha, R. G.; Clark, W. D. & Kramlich, J. C.
Partner: UNT Libraries Government Documents Department
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Combustion of ultrafine coal/water mixtures and their application in gas turbines: Final report

Description: The feasibility of using coal-water fuels (CWF) in gas turbine combustors has been demonstrated in recent pilot plant experiments. The demands of burning coal-water fuels with high flame stability, complete combustion, low NO/sub x/ emission and a resulting fly ash particle size that will not erode turbine blades represent a significant challenge to combustion scientists and engineers. The satisfactory solution of these problems requires that the variation of the structure of CWF flames, i.e., … more
Date: October 1, 1987
Creator: Toqan, M.A.; Srinivasachar, S.; Staudt, J.; Varela, F. & Beer, J.M.
Partner: UNT Libraries Government Documents Department
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DEVELOPMENT OF PLUTONIUM BEARING FUEL MATERIALS. Progress Report for period July 1 through September 30, 1961

Description: Data are tabulated for the characteristic parameters of PuO/sub 2/ powders prepared by the continuous oxalate precipitation process. The results show that the PuO/sub 2/ surface area decreases almost linearly with calcination hold times at 760 deg C. A thermogravimetric study of the decomposition of Pu oxalate indicate the formation of an initial stable compound at ~ l00 deg C and a stable intermediate at ~ 300 deg C. Characteristic data are tabulated for UO/sub 2/ -5% PuO/sub 2/ and UO/sub 2/-… more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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JBK-75 microstructure specification recommendation. [Modified A-286]

Description: Since the ASTM-E-45 standard for microcleanliness is not applicable to superalloys like JBK-75 stainless steel (Modified A-286), Rocky Flats should adopt the Ladish microcleanliness standard (APML Cleanliness Classification of High Temperature Alloys Chart, 1971), as a guide for setting material acceptance specifications for JBK-75. Inclusion ratings of S-2, N-2, C-2, and M-2 should be acceptable. The microstructure should have a grain size of 5 or finer, but not smaller than 9, and microsegreg… more
Date: October 31, 1977
Creator: Brewer, A. W.
Partner: UNT Libraries Government Documents Department
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Antares Phase two

Description: Definition of a large CO/sub 2/ laser system that would fit into the Antares facility was undertaken. Described here are the five amplifier cross sections that were studied, seven target systems, focusability and optic quality, and the crosstalk that occurs in multiplexed amplifiers. Eight amplifier system options are described: three are 400 kJ, five are 200 kJ, and one of each of these is multiplexed. A cost analysis is presented as an aid in comparing the options, and the current Antares des… more
Date: October 1, 1980
Creator: Leland, W. T.; Kircher, M.; Sklar, E.; Yavornik, E. & Zeigner, V.
Partner: UNT Libraries Government Documents Department
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Liquefaction of coals using ultra-fine particle, unsupported catalysts: In situ generation by rapid expansion of supercritical fluid solutions

Description: The purpose of this program is to design and fabricate an experimental ultra-fine particle generation system; use this system to generate ultra-fine, iron compound, catalyst particles; and to access the ability of these ultra-fine catalyst particles to improve the performance of the solubilization stage of two-stage, catalytic-catalytic liquefaction processes.
Date: October 1, 1991
Partner: UNT Libraries Government Documents Department
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Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis

Description: The objective of this project is to pursue the development of highly dispersed and inexpensive catalysts for improved coal solubilization and upgrading of coal liquids. A novel study of the synthesis of liquefaction catalysts of nanometer size will be carried out. It is based on the molecular design of reverse micelles (microemulsions). These surfactant-stabilized, metalbearing microdrops offer unique opportunities for synthesizing very small particles by providing a cage-like effect that limit… more
Date: October 1, 1991
Creator: Osseo-Asare, K.; Boakye, E.; Vaidyanathan, N. & Radovic, L.R.
Partner: UNT Libraries Government Documents Department
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Biological conversion of biomass to methane. Quarterly progress report, June 1--September 30, 1977

Description: During the past quarter, work has continued on the use of beef feed lot manure for the production of methane. Additional data were collected on the operation of the fermentors at thermophilic temperatures. Data were also collected at the mesophilic temperature. A considerable effort has been expended on characterizing the reactor effluent and evaluating the dewatering characteristics of the reactor slurry. Evaluation of the type of reactor on methane yields have continued. Data were collected o… more
Date: October 1, 1977
Creator: Pfeffer, J T
Partner: UNT Libraries Government Documents Department
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SNAP Radioisotope Space Programs Task 7. Quarterly Progress Report No. 7, April 1 Through June 30, 1961

Description: Safety analyses of the launch of SNAP-type units as to launch, ascent, and intermediate or final-stage failures are reported. A preliminary design study to define the configuration and performance of the Surveyor generator is completed. Dispersion patterns are found for radioactive materials released by the high-velocity vertical impact of Surveyor-type generators on the moon. High- velocity testing methods are discussed. Flare and telemetry capsules, designed to simulate fuel cores of nuclear … more
Date: October 31, 1962
Partner: UNT Libraries Government Documents Department
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PHYSICAL METALLURGY OF FAST BREEDER REACTOR CLADDING MATERIALS AND REFRACTORY METALS.

Description: Studies on Re - Mo - W alloys led to lower cost production procedures and greatly improved room temperature ductility properties of powder metallurgy materials used for fast breeder reactor fuel cladding materials. Data are presented for ductility, grain size, hardness, recrystallization, and changes in aging at temperatures up to 2000 deg C for periods up to 1000 hrs. (F.S.)
Date: October 31, 1969
Creator: Collins, C.G. & Bohlander, K.M.
Partner: UNT Libraries Government Documents Department
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Analysis of energy and utility service demands

Description: The collection, analysis, and review of existing data on a community's service requirements are documented. The research focused on the analysis of energy-using activities including both micro activities such as space heating, cooking, lighting, and transportation; and macro activities such as providing shelter, health care, education, etc. The technical report describes the analytical framework developed for community description; describes an indexing system by which a catalog of services can… more
Date: October 1, 1978
Partner: UNT Libraries Government Documents Department
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Assessment of feasibility, economics, and market potential for a molten salt system at 1000/sup 0/F reheat steam: feasibility, economics, and market potential

Description: As a result of the Advanced Central Receiver (ACR) Phase I systems studies, Martin-Marietta Corporation (MMC) developed a conceptual design employing 1050/sup 0/F molten salt and a 950/sup 0/F/950/sup 0/F reheat turbine. This concept appears to have the potential for providing higher steam conditions leading to higher performance and wider market application. This report presents the results of a preliminary investigation of the system to determine the feasibility of providing 1000/sup 0/F/1000… more
Date: October 1, 1979
Creator: DeRienzo, P; Masaki, M & Mathur, P
Partner: UNT Libraries Government Documents Department
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Method of electrode fabrication and an electrode for metal chloride battery

Description: A method of fabricating an electrode for use in a metal chloride battery and an electrode are provided. The electrode has relatively larger and more uniform pores than those found in typical electrodes. The fabrication method includes the steps of mixing sodium chloride particles selected from a predetermined size range with metal particles selected from a predetermined size range, and then rigidifying the mixture. The electrode exhibits lower resistivity values of approximately 0.5 {Omega}cm{s… more
Date: October 9, 1990
Creator: Bloom, I.D.; Nelson, P.A. & Vissers, D.R.
Partner: UNT Libraries Government Documents Department
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