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Gas chromatographic studies of the relative retention of the sulfur isotopes in carbonyl sulfide, carbon disulfide, and sulfur dioxide (open access)

Gas chromatographic studies of the relative retention of the sulfur isotopes in carbonyl sulfide, carbon disulfide, and sulfur dioxide

A precision gas chromatograph, coupled to a quadrupole mass spectrometer and an on-line computer, was used to study the fractionation on Porasil A of the /sup 32/S//sup 34/S isotopic pair in a variety of sulfur-containing molecules. Carbonyl sulfide (COS) yielded an average ..cap alpha.. value of 1.00074 +- 0.00017 (standard deviation) for the temperature range 25/sup 0/C to 75/sup 0/C. The carbon disulfide (CS/sub 2/) value was 1.00069 +- 0.00023 for the range 53/sup 0/C to 103/sup 0/C, and that for sulfur dioxide (SO/sub 2/) was 1.00090 +- 0.00018 for the range 62/sup 0/C to 112/sup 0/C. Differential thermodynamic data have been reported. A Porapak Q column showed no fractionation of this isotopic pair in these three molecules.
Date: January 18, 1980
Creator: Fetzer, J.C. & Rogers, L.B.
System: The UNT Digital Library
Enhanced durability and reactivity for zinc ferrite desulfurization sorbent (open access)

Enhanced durability and reactivity for zinc ferrite desulfurization sorbent

AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Date: May 18, 1987
Creator: Jha, M. C.; Baltich, L. K. & Berggren, M. H.
System: The UNT Digital Library
Status Report of Solar Standards coordinated by the Steering Committee on Solar Energy Standards Development contents (open access)

Status Report of Solar Standards coordinated by the Steering Committee on Solar Energy Standards Development contents

Solar standards are listed for each of the standards writing organizations associated with the Steering Committee. A complete list of approved standards, standards under development, and standards under revision is provided. (WHK)
Date: August 18, 1980
Creator: unknown
System: The UNT Digital Library
Mound Facility activities in chemical and physical research: July-December 1979 (open access)

Mound Facility activities in chemical and physical research: July-December 1979

Research is reported in the following fields: isotope separation (Ar, C, He, Kr, Ne, O, Xe), low-temperature research (H intermolecular potential functions, gas analysis in trennschaukel), separation chemistry (/sup 229/Th, /sup 231/Pa, /sup 230/Th, /sup 234/U), separation research (liquid thermal diffusion, Ca isotope separation, molecular beam scattering, mutual diffusion of noble gas mixtures, lithium chemical exchange with cryptands), and calculations in plutonium chemistry (algorithms, valence in natural water). (DLC)
Date: June 18, 1980
Creator: unknown
System: The UNT Digital Library
Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop (open access)

Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop

The objective of this study was to extend the working life of cutting fluids used in metal machining operations at LLNL. The characteristics of the fluids in nine different machines were studied. The pH, bacteria level, percent coolant concentrate, percent tramp oil, and total undissolved solids were monitored on a week-to-week basis for 6 weeks. During this time, the criteria and procedures used for changing the cutting fluids in the machines were also observed. Although the study is incomplete, the following recommendations were made. Cutting fluids should be diluted with deionized water and the concentration of the cutting fluid should be monitored regularly with a refractometer. A bactericide should be added to the cutting fluid. The machines should have a thorough initial cleaning and machine oil leaks should be eliminated. Only one cutting fluid should be used throughout the shop. Methods for removing metal particles from used cutting oils should be investigated. (LCL)
Date: November 18, 1981
Creator: Cadena, C. A.; da Roza, R. A.; Johnson, J. S. & Szidon, R. D.
System: The UNT Digital Library
Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, October 1, 1979-December 31, 1979 (open access)

Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, October 1, 1979-December 31, 1979

This report presents the results of work performed from October 1, 1979 through December 31, 1979. Work covered in this report includes the activities associated with the status of the simulated reactor helium supply system, testing equipment and gas chemistry analysis instrumentation and equipment. The progress in the screening test program is described. This includes: screening creep results, weight gain and post-exposure mechanical properties for materials thermally exposed at 750/sup 0/ and 850/sup 0/C (1382/sup 0/ and 1562/sup 0/F). In addition, the status of the data management system is described.
Date: April 18, 1980
Creator: unknown
System: The UNT Digital Library
Pu-238 fuel form activities, June 1-30, 1980 (open access)

Pu-238 fuel form activities, June 1-30, 1980

This monthly report for Pu-238 Fuel Form Activities has two main sections: SRP-PuFF Pu-238 Fuel Form Production Processes and SRL Pu-238 Fuel Form Research and Development. The program status, budget information, and milestone information are discussed in each main section. The Work Breakdown Structures (WBS) for this program is outlined. Only one monthly report per year is processed for EDB.
Date: July 18, 1980
Creator: unknown
System: The UNT Digital Library
/sup 238/PuO/sub 2//Mo-50 wt% Re compatibility at 800 and 1000/sup 0/C (open access)

/sup 238/PuO/sub 2//Mo-50 wt% Re compatibility at 800 and 1000/sup 0/C

The compatibility of Mo-50 wt % Re with /sup 238/PuO/sub 2/ was investigated after heat treatments of up to 720 days at 800/sup 0/C and 180 days at 1000/sup 0/C. At 800/sup 0/C, a 1-..mu..m thick, continuous layer of molybdenum oxide resulted. At 1000/sup 0/C, the oxide reaction product contained some plutonium and did not appear continuous. At 1000/sup 0/C, a layer of intermetallic formed at the Mo-Re edge, beneath the oxide layer, creating a barrier between the Mo-50 wt % Re and the /sup 238/PuO/sub 2/. The intermetallic layer was promoted by the iron impurity in the /sup 238/PuO/sub 2/.
Date: July 18, 1980
Creator: Schaeffer, D. R. & Teaney, P. E.
System: The UNT Digital Library
Energy savings by means of fuel cell electrodes in electro-chemical industries. Progress report, November 1, 1979-January 31, 1980 (open access)

Energy savings by means of fuel cell electrodes in electro-chemical industries. Progress report, November 1, 1979-January 31, 1980

Zinc electrowinning data, obtained with hydrogen depolarized anodes operating in a plant feed electrolyte at 55/sup 0/C, are presented in this quarterly report for investigations involving the following: performance of an anode containing a low platinum loading, i.e. 0.09 mg/cm/sup 2/ instead of the typical 0.33 mg/cm/sup 2/, and an anode catalyzed with palladium instead of platinum; establishment of a feed and bleed system to maintain a constant electrolyte composition; exploratory experiments on the effect of the rate and mode of electrolyte flow on the quality of the zinc plate at high current densities; performance of the anode with feeds of varying degrees of purification pre-treatment, and containing either 50 or 150 g/l Zn/sup + +/; the effect upon cell voltage of decreasing the hydrogen flowrate to the anode by dilution of the feed gas with nitrogen; the effect upon cell voltage of increasing the back pressure of the hydrogen gas fed to the anode; the effect upon energy consumption and current efficiency of varying the current density and the Zn/sup + +/ concentration; trace elemental analysis of a cathodic zinc plate of commercial-size thickness, as produced using the catalytic H/sub 2/ anode; further comparison of the effects of feed …
Date: April 18, 1980
Creator: Bar-Ilan, A.; Juda, W.; Allen, R.J. & Lindstrom, R.W.
System: The UNT Digital Library
Geothermal energy: obstacles and uncertainties impede its widespread use (open access)

Geothermal energy: obstacles and uncertainties impede its widespread use

A perspective on geothermal energy's development and potential and a discussion of Federal actions needed to help accelerate geothermal development and use are included. (MHR)
Date: January 18, 1980
Creator: E.B., Staats
System: The UNT Digital Library
Solar feasibility study for site-specific industrial-process-heat applications. Final report (open access)

Solar feasibility study for site-specific industrial-process-heat applications. Final report

This study addresses the technical feasibility of solar energy in industrial process heat (IPH) applications in Mid-America. The study was one of two contracted efforts covering the MASEC 12-state region comprised of: Illinois, Michigan, North Dakota, Indiana, Minnesota, Ohio, Iowa, Missouri, South Dakota, Kansas, Nebraska, Wisconsin. The results of our study are encouraging to the potential future role of solar energy in supplying process heat to a varied range of industries and applications. We identified and developed Case Study documentation of twenty feasible solar IPH applications covering eight major SIC groups within the Mid-American region. The geographical distribution of these applications for the existing range of solar insolation levels are shown and the characteristics of the applications are summarized. The results of the study include process identification, analysis of process heat requirements, selection of preliminary solar system characteristics, and estimation of system performance and cost. These are included in each of the 20 Case Studies. The body of the report is divided into two primary discussion sections dealing with the Study Methodology employed in the effort and the Follow-On Potential of the identified applications with regard to possible demonstration projects. The 20 applications are rated with respect to their relative …
Date: March 18, 1980
Creator: Murray, O.L.
System: The UNT Digital Library
SNAP 19 Viking Program. Bimonthly Technical Progress Report, October-November 1980 (open access)

SNAP 19 Viking Program. Bimonthly Technical Progress Report, October-November 1980

Monitoring of power system performance data for Pioneer 10 and Pioneer Saturn spacecrafts continued through the reporting period. The net power output for either system at the end of October 1980 was 113 watts. Pioneer 10 degradation has been nearly linear at a rate of 0.130 watts/1000 generator hours, while the Pioneer Saturn power degradation is slightly higher at 0.135 watts/1000 generator hours.
Date: December 18, 1980
Creator: unknown
System: The UNT Digital Library
Low-temperature ceramic radioactive waste form characteriztion of supercalcine-based monazite-cement composites (open access)

Low-temperature ceramic radioactive waste form characteriztion of supercalcine-based monazite-cement composites

Simulated radioactive waste solidification by a lower temperature ceramic (cement) process is being investigated. The monazite component (simulated by NdPO/sub 4/) of supercalcine-ceramic has been solidified in cement and found to generate a solid form with low leachability. Several types of commercial cements and modifications thereof were used. No detectable release of Nd or P was found through characterizing the products of accelerated hydrothermal leaching at 473/sup 0/K (200/sup 0/C) and 30.4 MPa (300 bars) pressure.
Date: April 18, 1980
Creator: Roy, D. M.; Wakeley, L. D. & Atkinson, S. D.
System: The UNT Digital Library
Wind profile measurements at the Mod-1 site at Boone, North Carolina (open access)

Wind profile measurements at the Mod-1 site at Boone, North Carolina

Three components of the wind field, temperature and pressure were measured by means of tethered balloon-borne sondes from the surface to 175 m (577 ft) and by means of a nacelle mounted system, from the surface to hub height of 43 m (140 ft). Measurements were taken over a ten day period at the Mod-1 Site in Boone, NC. Composite wind profiles are presented for different flow and stability regimes. The most extreme shears, on the order of .3 s/sup -1/, were found between 10 m (33 ft) and hub height. Individual profiles of wind and temperature show the effect of nocturnal cooling and accompanying surface stratification on the intensity of thw wind shear. Gustiness measured in terms of departures of one and two standard deviations above and below the mean, occurs at all heights across the rotor of the Mod-1 machine. Most frequent gustiness, however, occurs at and below hub height with periods up to 8 secs. Similar fluctuations are observed in the vertical component of the velocity field and in the direction of the horizontal wind. The depth of the shearing layer is critically related to hub height and rotor radius. The depth of the shearing layer appears …
Date: June 18, 1980
Creator: Brown, J.D.
System: The UNT Digital Library
Continental scientific drilling program data base: 1982 (open access)

Continental scientific drilling program data base: 1982

The Continental Scientific Drilling Program (CSDP) data base maintained at Lawrence Livermore National Laboratory is funded by the Office of Basic Energy Sciences of the Department of Energy. It is a central repository of information concerning approximately 1800 government funded and scientifically interesting drill holes in the United States. This data base can help reduce drilling costs and maximize scientific value of drilling efforts of government agencies and industry. The services of the CSDP data base are free of charge and available to all.
Date: May 18, 1982
Creator: Pawloski, G.A.; Howard, N.; Hage, G.; Higuera; M.L. & Richardson, W.
System: The UNT Digital Library
ORNL rod-bundle heat-transfer test data. Volume 6. Thermal-hydraulic test facility experimental data report for test 3. 05. 5B - double-ended cold-leg break simulation (open access)

ORNL rod-bundle heat-transfer test data. Volume 6. Thermal-hydraulic test facility experimental data report for test 3. 05. 5B - double-ended cold-leg break simulation

Thermal-Hydraulic Test Facility (THTF) Test 3.05.5B was conducted by members of the ORNL PWR Blowdown Heat Transfer Separate-Effects Program on July 3, 1980. The objective of the program is to investigate heat transfer phenomena believed to occur in PWRs during accidents, including small and large break loss-of-coolant accidents. Test 3.05.5B was designed to provide transient thermal-hydraulics data in rod bundle geometry under reactor accident-type conditions. Reduced instrument responses are presented. Also included are uncertainties in the instrument responses, calculated mass flows, and calculated rod powers.
Date: May 18, 1982
Creator: Mullins, C. B.; Felde, D. K.; Sutton, A. G.; Gould, S. S.; Morris, D. G.; Robinson, J. J. et al.
System: The UNT Digital Library
Status report for data files and Monte Carlo transport codes maintained by the Physical Data Group of LLNL (open access)

Status report for data files and Monte Carlo transport codes maintained by the Physical Data Group of LLNL

The Physical Data Group of the Theoretical Physics Division of LLNL has developed and maintains several basic data files, several Monte Carlo transport codes, and the requisite processing codes that convert the basic data to the form required by our own transport codes and by other laboratory transport and burn codes. The data files (libraries) that we maintain are listed together with a few comments about each.
Date: October 18, 1983
Creator: Howerton, Robert J.
System: The UNT Digital Library
Analytical and numerical analysis of finite amplitude Rayleigh-Taylor instability (open access)

Analytical and numerical analysis of finite amplitude Rayleigh-Taylor instability

We summarize the results obtained in the last year. These include a simple model of bubble competition in Rayleigh-Taylor unstable flows which gives results which are in good agreement with experiment. In addition the model has been compared with two dimensional numerical simulations of inviscid Rayleigh-Taylor instability using the cloud-in-cell method. These simulations can now be run into the late time regime and can track the competition of as many as ten bubbles. The improvement in performance over previous applications of the cloud-in-cell approach is due to the application of finite difference techniques designed to handle shock-like structures in the vorticity of the interface which occur at late times. We propose to extend the research carried thus far to Rayleigh-Taylor problems in three dimensional and convergent geometries as well as to two-fluid instabilities in which interface roll-up is observed. Finally we present a budget for the fiscal year 1987-1988. 6 refs.
Date: September 18, 1987
Creator: Meiron, D.I. & Saffman, P.G.
System: The UNT Digital Library
Accident at Three Mile Island and its aftermath (open access)

Accident at Three Mile Island and its aftermath

Viewgraphs are presented that describe the Three Mile Island-2 reactor; the severe accident in the reactor; activity levels following the accident; and estimated costs associated with the accident.
Date: April 18, 1983
Creator: Malinauskas, A.P.
System: The UNT Digital Library
Demonstration of the Environmental Data Corporation Spectral Fuel Conservation System. Quarterly report, October-December, 1979 (open access)

Demonstration of the Environmental Data Corporation Spectral Fuel Conservation System. Quarterly report, October-December, 1979

A program plan was prepared and submitted to the Department of Energy in November 1979. The criteria that must be satisfied by the host site for a successful demonstration of the Spectral Fuel Conservation System have been developed and are included in this report. The process of demonstration site selection is underway and is expected to be completed on schedule by March 31, 1980. Preliminary discussions with Union Carbide indicate that the coal-fired boilers at the company's specialty chemicals plant in Institute, West Virginia appear to satisfy all the major site criteria. Exchanges of drawings are now in progress for further evaluation prior to undertaking a site inspection visit. Finally, a literature search has been initiated to determine the distribution by size and type of coal-fired boilers in the industrial sector as background to the energy savings analysis required in Task 11.
Date: January 18, 1980
Creator: unknown
System: The UNT Digital Library
Benzene/nitrous oxide flammability in the precipitate hydrolysis process (open access)

Benzene/nitrous oxide flammability in the precipitate hydrolysis process

The HAN (hydroxylamine nitrate) process for destruction of nitrite in precipitate hydrolysis produces nitrous oxide (N2O) gas as one of the products. N2O can form flammable mixtures with benzene which is also present due to radiolysis and hydrolysis of tetraphenylborate. Extensive flame modeling and explosion testing was undertaken to define the minimum oxidant for combustion of N2O/benzene using both nitrogen and carbon dioxide as diluents. The attached memorandum interprets and documents the results of the studies.
Date: September 18, 1989
Creator: Jacobs, R A
System: The UNT Digital Library
[Plaintiff's original complaint Moore v. Roberts et. al.] (open access)

[Plaintiff's original complaint Moore v. Roberts et. al.]

Plaintiff's original complaint in Moore v Roberts et al.
Date: April 18, 1989
Creator: unknown
System: The UNT Digital Library
Tunnel nitrogen spill experiment (open access)

Tunnel nitrogen spill experiment

The Energy Saver Safety Analysis Report (SAR) found the tunnel oxygen deficiency considerations emphasized helium spills. These reports concluded the helium quickly warms and because of its low denisty, rises to the apex of the tunnel. The oxygen content below the apex and in all but the immediate vicinity of the helium spill is essentially unchanged and guarantees an undisturbed source of oxygen especially important to fallen personnel. In contrast nitrogen spills warm slower than helium due to the ratio of the enthalpy changes per unit volume spilled spread more uniformly across the tunnel cross-section when warmed because of the much smaller density difference with air, and generally provides a greater hazard than helium spills as a result. In particular there was concern that personnel that might fall to the floor for oxygen deficiency or other reasons might find less, and not more, oxygen with dire consequences. The SAR concluded tunnel nitrogen spills were under-investigated and led to this work.
Date: August 18, 1983
Creator: Ageyev, A. I.; Alferov, V. N. & Mulholland, G. T.
System: The UNT Digital Library
Experiments on ETA comparing wire-conditioned and non-wire-conditioned beam propagation (open access)

Experiments on ETA comparing wire-conditioned and non-wire-conditioned beam propagation

This report describes experiments in beam propagation with the ETA beam during 1982 following accelerator cavity modifications which allowed a maximum beam current of up to 8 kA at the entrance to the propagation tank. A prominent new feature of the propagation in high pressure gas was an enhancement of the net current as the beam propagated. In some cases this enhanced current was nearly double the injected beam current. The strong current enhancement was associated with strong transverse hose motion of the beam. The absence of microwave emissions in the range from 6.6 GHz to 31 GHz indicates that this current enhancement is not due to a two-stream instability.
Date: January 18, 1984
Creator: Clark, J. C.; Lauer, E. J.; Prono, D. S. & Struve, K. W.
System: The UNT Digital Library