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Fiscal Year 1997
11
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9
Fiscal Year 1998
8
Winter Fuels Report
8
Chemical Processing Department Monthly Report
7
OIT Best Practices
7
ACRH Semiannual Report on Medical Research
6
Energy Star Lighting Verification Program Semi-Annual Report
6
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6
LWBR Development Program
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21,227 Matching Results
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Multielement analysis of geologic materials by inductively coupled plasma-atomic emission spectroscopy
Atomic emission spectroscopy using an inductively coupled plasma (ICP) source permits the rapid acquisition of multielement geochemical data from a wide variety of geologic materials. Rocks or other solid samples are taken into solution with a four acid digestion procedure and introduced directly into the plasma; fluid samples are acidified or analyzed directly. The entire process is computer-controlled, fully-automated, and requires less than five minutes per sample for quantitative determination of 37 elements. The procedures and instrumentation employed at the ESL for multielement ICP analysis of geologic materials are described and these are intended as a guide for evaluating analytic results reported from this laboratory. The quality of geochemical data can be characterized by precision, limits of quantitative determination, and accuracy. Precision values are a measure of the repeatability of analyses. In general, major element and analyses have precision of better than 5% and trace elements of better than 10% of the amount present. (MHR)
Date:
March 1, 1980
Creator:
Christensen, O.D.; Kroneman, R.L. & Capuano, R.M.
Object Type:
Report
System:
The UNT Digital Library
Pentamethylcyclopentadienyl and bis(trimethylsilyl)amido complexes of the di- and trivalent lanthanides
The reaction of the divalent iodides YbI/sub 2/ and EuI/sub 2/ with NaN(SiMe/sub 3/)/sub 2/ has provided pentane-soluble, monomeric derivatives of the divalent lanthanides. These compounds are isolated as the solvated species Eu(N(SiMe/sub 3/)/sub 2/)/sub 2/L/sub 2/ (L = thf or 1,2-dme), Yb(N(SiMe/sub 3/)/sub 2/)/sub 2/(thf)/sub 1/ /sub 5/ and Yb(N(SiMe/sub 3/)/sub 2/)/sub 2/L/sub 2/ (L = 1,2-dme or OEt/sub 2/), or as the sodium salts NaM(N(SiMe/sub 3/)/sub 2/)/sub 3/ (M = Eu or Yb). The pentamethylcyclopentadienyl ligand has been used to obtain trivalent derivatives of the type (C/sub 5/Me/sub 5/)/sub 2/MCl/sub 2/M'L/sub x/ (M = Nd, Sm or Yb; M' = Li or Na; L = OEt/sub 2/ or tmed) or (C/sub 5/Me/sub 5/)/sub 2/MCl(thf) (M = Nd or Yb). These compounds undergo metathesis reactions. The interaction of NaC/sub 5/Me/sub 5/ with EuCl/sub 3/ yields only the divalent (C/sub 5/Me/sub 5/)/sub 2/EuL (L = thf or OEt/sub 2/). Analogous compounds of ytterbium are obtained by reaction of YbI/sub 2/ with NaC/sub 5/Me/sub 5/ in thf or OEt/sub 2/. The ytterbium amine complexes are weakly paramagnetic, apparently due to charge transfer from ytterbium to the aromatic rings. The divalent phosphine complexes (C/sub 5/Me/sub 5/)/sub 2/ML (M = Eu or Yb; …
Date:
March 1, 1982
Creator:
Tilley, T. D.
Object Type:
Report
System:
The UNT Digital Library
Cumulative Effects of Micro-Hydro Development on the Fisheries of the Swan River Drainage, Montana, First Annual Progress Report (Covering Field Season July-November 1982).
This fisheries study is to determine the potential cumulative biological and economic effects of 20 small or micro-hydro-electric facilities (less than 5 megawatts) proposed to be constructed on tributaries to the Swan River, a 1738 square kilometer (671 square mile) drainage located in northwestern Montana. The study addresses portions of measure 1204 (b) (2) of the Norwthwest Power Planning Council's Columbia River Basin Fish and Wildlife Program. Aerial pre-surveys conducted during 1982 identified 102 stream reaches that may support fish populations in the Swan drainage between Swan and Lindbergh lakes. These reaches were located in 49 tributary streams and constituted 416 kilometers (258 miles) of potential fish habitat. Construction of all proposed small hydro projects would divert water from 54 kilometers (34 miles) or about 13 percent of the tributary system. Only two of the 20 proposed hydro sites did not support trout populations and most were populated by migratory bull trout and westslope cutthroat trout. Potential cumulative habitat losses that could result from dewatering of all proposed project areas were predicted using a stream reach classification scheme involving stream gradient, drainage ara, and fish population data. Preliminary results of this worst case analysis indicate that 23, 19 and 6 …
Date:
March 1, 1984
Creator:
Leathe, Stephen A. & Graham, Patrick J.
Object Type:
Report
System:
The UNT Digital Library
Development of BEACON technology. Quarterly report, April-June 1982
The BEACON process involves the catalytic deposition of a highly reactive form of carbon from a gas stream which contains carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane or hydrogen. Experiments were continued this quarter with the objective of improving the carbon deposition efficiency using a Paraho retort off-gas mixture. Analysis has shown that the use of the Paraho off-gas to make hydrogen would be attractive if the ratio of the heat content of the feedgas to the heat content of the hydrogen produced is less than 3. Experimental conditions to achieve this ratio have been established. Recent work had shown that the volume of a BEACON supported catalyst bed increased with an increase in carbon loading level. Four series of experiments were performed where sieve analyses were made after one or more BEACON process cycles. These tests showed that the volume expansion is due to an increase in the number and size of the larger catalyst particles. The bench-scale testing of unsupported catalysts concentrated in two areas: (a) the completion of batch testing in the 4-inch reactor, and (b) the construction of the Tandem Reactor …
Date:
March 1, 1983
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Low energy components from charge transfer in neutral beams for fusion
The MFTF/TFTR injector system is studied. The LLL double charge exchange system is also studied. The stripping problem in surface-production negative ion systems producing beam energies up to 1000 keV is also investigated. (MOW)
Date:
March 1, 1977
Creator:
Anderson, O. A.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Heat Rejection Systems for PL-3
An investigation was made of heat rejection systems for use in the PL-3 nuclear power plant, designed for placement at Byrd Station, Antarctica. It was concluded that the glycol-coupled surface condenser and air blast cooler combination appears to be suited for PL-3 plant requirements and operating conditions. (auth)
Date:
March 1, 1962
Creator:
Thurnau, C. J.
Object Type:
Report
System:
The UNT Digital Library
Floristic composition and plant succession on near-surface radioactive-waste-disposal facilities in the Los Alamos National Laboratory
Since 1946, low-level radioactive waste has been buried in shallow landfills within the confines of the Los Alamos National Laboratory. Five of these sites were studied for plant composition and successional patterns by reconnaissance and vegetation mapping. The data show a slow rate of recovery for all sites, regardless of age, in both the pinon-juniper and ponderosa pine communities. The sites are not comparable in succession or composition because of location and previous land use. The two oldest sites have the highest species diversity and the only mature trees. All sites allowed to revegetate naturally tend to be colonized by the same species that originally surrounded the sites. Sites on historic fields are colonized by the old field flora, whereas those in areas disturbed only by grazing are revegetated by the local native flora.
Date:
March 1, 1982
Creator:
Tierney, G.D. & Foxx, T.S.
Object Type:
Report
System:
The UNT Digital Library
High-temperature oxidation and corrosion of materials program
Research progress is reported in the behavior of metals and alloys in gas mixtures at high temperature, corrosion mechanisms in complex environments of low oxidizing potential, hot corrosion of nickel-base alloys at intermediate temperatures, corrosion of solid sulfate deposits, adherence of Al/sub 2/O/sub 3/ oxide films, oxidation behavior of a two-phase alloy Fe-44% Cu, and formation of subscales of varying composition. (FS)
Date:
March 1, 1980
Creator:
Whittle, D.P.
Object Type:
Report
System:
The UNT Digital Library
One-dimensional code to predict the thermal behavior of the UTSI MHD radiant furnace
An analytical model of the thermal behavior of the radiant furnace components installed in the CFFF has been developed. Efforts have been primarily directed towards obtaining a representative global evaluation of the heat recovery of the major downstream components. An overall review of the heat transfer code developed specifically for the DOE CFFF downstream components is presented. The basic methods by which the gas state, transport properties, and the thermal radiative and convective properties are calculated are delineated. Since the thermal behavior of the furnace is radiation dominated, a greater emphasis was placed on this mode of heat transfer. The heat transfer model employs a single zone approximation to the physical problem. The results of the code show good agreement with the experimental data. A more rigorous approach to the problem requires the use of a multi-zone analysis which is presently under consideration. 21 references. (WHK)
Date:
March 1, 1984
Creator:
Galanga, F.L.
Object Type:
Report
System:
The UNT Digital Library
(Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio)
An environmental investigation of ground water conditions has been undertaken at Wright-Patterson Air Force Base (WPAFB), Ohio to obtain data to assist in the evaluation of a potential removal action to prevent, to the extent practicable, migration of the contaminated ground water across Base boundaries. Field investigations were limited to the central section of the southwestern boundary of Area C and the Springfield Pike boundary of Area B. Further, the study was limited to a maximum depth of 150 feet below grade. Three primary activities of the field investigation were: (1) installation of 22 monitoring wells, (2) collection and analysis of ground water from 71 locations, (3) measurement of ground water elevations at 69 locations. Volatile organic compounds including trichloroethylene, perchloroethylene, and/or vinyl chloride were detected in concentrations exceeding Maximum Contaminant Levels (MCL) at three locations within the Area C investigation area. Ground water at the Springfield Pike boundary of Area B occurs in two primary units, separated by a thicker-than-expected clay layers. One well within Area B was determined to exceed the MCL for trichloroethylene.
Date:
March 1, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Programmable control system for scanning cylindrical parts
None
Date:
March 14, 1975
Creator:
Neal, R. E.
Object Type:
Report
System:
The UNT Digital Library
Nuclear magnetohydrodynamic power plant in space. [URANIUM CARBIDE FUEL]
None
Date:
March 1, 1964
Creator:
Carter, J.C. & Armstrong, R.H.
Object Type:
Report
System:
The UNT Digital Library
Spent Fuel Transfer, Storage and Shipment for PL-3
In refueling development studies performed on PL-3 Phase I design, several methods of fuel transfer, storage, and shipment were investigated. An evaluation of the relative merits of the systems and designs under study, as applied to either the BWR or PWR concepts, is made and optimum designs are selected. An analysis of spent fuel shipping cask shielding requirements is presented, along with recommendations for future study in this area. (auth)
Date:
March 1, 1962
Creator:
Hauenstein, G. C. & Pomeroy, D. L.
Object Type:
Report
System:
The UNT Digital Library
Low strain diameter expansion of internally pressurized Zircaloy-4 tubing at high temperatures
Tests of closed-end, internally pressurized, Zircaloy-4 tubing specimens were utilized to develop low strain creep characteristics as a function of time at temperatures in the range of 1475/sup 0/F to 2000/sup 0/F (802/sup 0/C to 1093/sup 0/C) and hoop stresses in the range of 250 to 2500 psi for use in loss-of-coolant accident (LOCA) analyses. The strain rate above the start of the alpha to beta phase transformation region, approximately 1490/sup 0/F (810/sup 0/C), was found to be sensitive to the test procedure (stress-temperature history). This is believed to result from variations in the metallurgical structure. A prediction model is presented which provides a conservative upper bound to the low strain test data provided in this report and reported in the literature.
Date:
March 1978
Creator:
White, L.S. & Busby, C.C.
Object Type:
Report
System:
The UNT Digital Library
Least cost planning from a customer's perspective
In this paper, I offer some thoughts about least cost planning, not from the perspective of the regulator or utility, but from the perspective of a residential customer. The problem that I address is, as a homeowner in northern Virginia, I am about to make a long term fuel choice for my household, where the options include, natural gas, electricity and fuel oil. An additional choice is the energy efficiency capital investment in my home that could decrease my monthly fuel costs. My decision process, hopefully as a rational consumer, offers implications about the efficiency of various services provided by all three fuel suppliers, including the local natural gas distribution companies (LDC).
Date:
March 2, 1992
Creator:
Sutherland, R.J.
Object Type:
Article
System:
The UNT Digital Library
TPC magnet cryogenic system
The Time Projection Chamber (TPC) magnet at LBL and its compensation solenoids are adiabatically stable superconducting solenoid magnets. The cryogenic system developed for the TPC magnet is discussed. This system uses forced two-phase tubular cooling with the two cryogens in the system. The liquid helium and liquid nitrogen are delivered through the cooled load by forced tubular flow. The only reservoirs of liquid cryogen exist in the control dewar (for liquid helium) and the conditioner dewar (for liquid nitrogen). The operation o these systems during virtually all phases of system operation are described. Photographs and diagrams of various system components are shown, and cryogenic system data are presented in the following sections: (1) heat leaks into the TPC coil package and the compensation solenoids; (2) heat leaks to various components of the TPC magnet cryogenics system besides the magnets and control dewar; (3) the control dewar and its relationship to the rest of the system; (4) the conditioner system and its role in cooling down the TPC magnet; (5) gas-cooled electrical leads and charging losses; and (6) a summation of the liquid helium and liquid nitrogen requirements for the TPC superconducting magnet system.
Date:
March 1, 1980
Creator:
Green, M.A.; Burns, W.A.; Taylor, J.D. & Van Slyke, H.W.
Object Type:
Report
System:
The UNT Digital Library
Cross sections for the /sup 7/Li(n,xn) and /sup 7/Li(n,n'. gamma. ) reactions between 1 and 20 MeV
Differential cross sections for the production of secondary neutrons and gamma rays from neutron interactions in /sup 7/Li have been measured at 50/sup 0/ and 126/sup 0/ (lab) for incident neutron energies in the range 1 to 20 MeV. An electron linac was used as a white neutron source. Incident neutron energies were determined using time-of-flight techniques for a source-to-sample distance of 48 m. Secondary spectra were determined by analysis of the pulse-height distributions observed in a NE-213 scintillation counter. The results are compared to the current evaluated data file (ENDF/B-IV, MAT 1272).
Date:
March 1, 1978
Creator:
Morgan, G. L.
Object Type:
Report
System:
The UNT Digital Library
Computer controlled cartridge case quality assurance inspection system
None
Date:
March 1, 1975
Creator:
Compton, M R & Erickson, M D
Object Type:
Article
System:
The UNT Digital Library
Research and development of methods and tools for achieving and maintaining consensus processes in the face of change within and among government oversight agencies: Volume 1
This progress report summarizes our research activities under our consensus grant. In year four of the grant, we continued to capitalize on and benefit from historical events which drove our early emphasis on group process studies. Following our work on various procedures for bringing together groups such as the State and Tribal Government Working Group and the Stakeholders' Forum (both of which provide input to the Five-Year Waste Plan), we continue to observe these groups and collect data. We also began a configuration study involving the complex modeling of DOE's Office of Environmental Restoration and Waste Management (EM). Related to group process studies is the issue of the information requirements for individuals making decisions in consensus groups. Our information studies examined the requirements for decision-related information, frameworks for such information, and the effectiveness of information portrayed for decision making. However, we were able not only to continue studying consensus groups in action and related information issues, but also to focus considerable attention on the fundamental side of our research. The fundamental or basic research conducted in year four included: (1) expanding our literature database; (2) beginning the writing of the literature review summary document and the consensus guide; (3) developing …
Date:
March 1, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Publications: 1977-1981
This is a compilation of documents that communicate the results of scientific and technical work done at Savannah River. The compilation includes those documents that have been published (research and development reports, journal articles, book chapters, etc.), and documents that have been announced in Energy Research Abstracts. Where applicable the meeting at which the paper was presented is given. The information was compiled by machine methods to produce bibliographic, subject, and author listings.
Date:
March 1, 1982
Creator:
Hilborn, H. S.
Object Type:
Report
System:
The UNT Digital Library
Research in Radiobiology. Annual Report of Work in Progress on the Chronic Toxicity Program
Separate abstracts were prepared on 8 sections of this report. Data are also included on the status of dogs at various time intervals following the injection of various doses of Ra/sup 226/, Pu/sup 239/, Ra/sup 228/, Th/sup 228, and Sr/sup 90/. (C. H.)
Date:
March 31, 1962
Creator:
Dougherty, T. F.
Object Type:
Report
System:
The UNT Digital Library
Penn Grade Micellar Displacement project. First annual report, June 1975--June 1976
The main objective of the Penn Grade-ERDA Micellar Displacement Project is to assess and hopefully, demonstrate the feasibility of commercial application of the micellar-polymer process for tertiary oil recovery from a rather large, but relatively ''tight'' section of the Bradford Third Sand. The initial phase of this project involves pertinent core and field injectivity measurements from a freshly drilled well, as a basis for assessing the feasibility of a small demonstration test flood to be performed under Phase II. This report details the work done and results obtained under Phase I (Injectivity Test) completed during the first year of the project. These results, having indicated that the pattern test envisaged under Phase II is indeed feasible, work is now in progress to carry the project to the pattern test phase, in pursuit of project goals.
Date:
March 1, 1978
Creator:
Danielson, H. H.; Paynter, W. T.; Midkiff, F. R. & Finalle, L. L.
Object Type:
Report
System:
The UNT Digital Library
Effects of low-temperature fusion neutron irradiation on critical properties of a monofilament niobium-tin superconductor
The objective of this work was to irradiate a Nb/sub 3/Sn superconductor with 14.8 MeV neutrons at 4 K and measure critical current in transverse fields of up to 12 T, irradiating up to a fluence sufficient to decrease the critical current to below its initial value. Critical temperatures were also to be measured. The samples were to be kept near 4 K between the irradiation and the measurement of critical properties. This work is directed toward establishing an engineering design fluence limit for Nb/sub 3/Sn when used in fusion reactor superconducting magnets.
Date:
March 22, 1984
Creator:
Guinan, M.W.; Van Konynenburg, R.A. & Mitchell, J.B.
Object Type:
Report
System:
The UNT Digital Library
LITHIUM HYDRIDE PROPERTIES
A tabulation is presented of values for selected properties of lithium hydride. (M.C.G.)
Date:
March 14, 1961
Creator:
Welch, F.H.
Object Type:
Report
System:
The UNT Digital Library