Resource Type

Wood Storks of the Birdsville Colony and swamps of the Savannah River Site: General overview of research findings, 1983--1990 (open access)

Wood Storks of the Birdsville Colony and swamps of the Savannah River Site: General overview of research findings, 1983--1990

The population of Wood Storks (Mycteria americana) that breeds in the United States has decreased from an estimated 20,000 breeding pairs in 1930 to just under 5,000 pairs in 1980. Since 1980, the number has remained relatively stable, fluctuating between 3,500 and 5,500 breeding pairs. The decline prompted the US Fish and Wildlife Service (USFWS) to list the United States population of Wood Storks as endangered in 1984. When the US Department of Energy (USDOE) decided to restart L-Reactor on the Savannah River Site (SRS), there was concern that when the reactor was restarted, cooling water flowing into the Steel Creek Delta would raise the water level and the area would become too deep for foraging storks. The potential loss of this area to storks was important because storks had been observed foraging in the Steel Creek Delta. The USDOE began consultation with the USFWS in April, 1984, and the USDOE subsequently agreed to develop and maintain alternative foraging habitat to replace the potential loss. In order to design and manage the alternate foraging ponds as effectively as possible, it was necessary to understand aspects of the biology of the storks, the characteristics of their foraging sites and the patterns …
Date: February 1, 1993
Creator: Coulter, M.C.
System: The UNT Digital Library
Pacific Northwest Laboratory Annual Report for 1992 to the DOE Office of Energy Research (open access)

Pacific Northwest Laboratory Annual Report for 1992 to the DOE Office of Energy Research

This report summarizes progress in OHER biological research and general life sciences research programs conducted at PNL in FY 1992. The research develops the knowledge and fundamental principles necessary to identify, understand, and anticipate the long-term health consequences of energy-related radiation and chemicals. Our continuing emphasis is to decrease the uncertainty of health risk estimates from energy-related technologies through an increase understanding of the ways in which radiation and chemicals cause biological damage. Descriptors of individual research projects as detailed in this report one separately abstracted and indexed for the database.
Date: June 1, 1993
Creator: Kreml, S. A. (ed.) & Park, J. F.
System: The UNT Digital Library
K-Area Acid/Caustic Basin groundwater monitoring report (open access)

K-Area Acid/Caustic Basin groundwater monitoring report

During fourth quarter 1992, samples from the KAC monitoring wells at the K-Area Acid/Caustic Basin were analyzed for indicator parameters, groundwater quality parameters, parameters indicating suitability as drinking water, and other constituents. New wells KAC 8 and 9 also were sampled for GC/MS VOA (gas chromatograph/mass spectrometer volatile organic analyses). Monitoring results that exceeded the final Primary Drinking Water Standards (PDWS) or the Savannah River Site (SRS) flagging criteria or turbidity standard during the quarter are discussed in this report. Iron exceeded the Flag 2 criterion in wells KAC 6 and 7, and specific conductance exceeded the Flag 2 criterion in new well KAC 9. No samples exceeded the SRS turbidity standard.
Date: March 1, 1993
Creator: unknown
System: The UNT Digital Library
Lower hybrid wave coupling in PBX-M (open access)

Lower hybrid wave coupling in PBX-M

The coupling of the waves launched from a 4.6 GHz lower hybrid system into PBX-M plasmas has been studied for both L-mode and H-mode plasmas. The characteristics of the plasma in front of the LH coupler have been measured with a fast Langmuir probe. The reflected power of the coupler has been measured across the transition to H-mode as a function of phase and the distance between the coupler and the separatrix. A transient rise in the LH reflection coefficient was observed near the L-H transition under some conditions. Coupling depends primarily on the electron density in the vicinity of the coupler, and proper positioning of the coupler can compensate for changes in the plasma edge due to H-mode transitions. Good coupling can be maintained throughout the H-mode.
Date: July 1, 1993
Creator: Bell, R.E.; Bernabei, S.; Greenough, N.; Lagin, L.; Leblanc, B.; Okabayashi, M. et al.
System: The UNT Digital Library
Infrared detection with high-[Tc] bolometers and response of Nb tunnel junctions to picosecond voltage pulses (open access)

Infrared detection with high-[Tc] bolometers and response of Nb tunnel junctions to picosecond voltage pulses

Oxide superconductors with high critical temperature [Tc] make sensitive thermometers for several types of infrared bolometers. The authors built composite bolometers with YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] thermometers on sapphire substrates which have higher sensitivity than competing thermal detectors which operate at temperatures above 77 K. A 1 x 1 mm bolometer with gold black serving as the radiation absorber has useful sensitivity for wavelengths 20--100 [mu]m. A 3 x 3 mm bolometer with a bismuth film as the absorber operates from 20--100 [mu]m. High-[Tc] bolometers which are fabricated with micromachining techniques on membranes of Si or Si[sub 3]N[sub 4] have potential application to large-format arrays which are used for infrared imaging. A nonisothermal high-[Tc] bolometer can be fabricated on a membrane of yttria-stabilized zirconia (YSZ) which is in thermal contact with the heat sink along the perimeter of the membrane. A thermal analysis indicates that the YSZ membrane bolometer can have improved sensitivity compared to the sapphire bolometer for spectrometer applications. The quasiparticle tunneling current in a superconductor-insulator-superconductor (SIS) junction is highly nonlinear in the applied voltage. The authors have made the first measurement of the linear response of the quasiparticle current in a Nb/AlO[sub x]/Nb junction over a broad …
Date: May 1, 1993
Creator: Verghese, S.
System: The UNT Digital Library
ACE program/UNIX user manual (open access)

ACE program/UNIX user manual

This report the following: How to use the ace program ; Introduction to the ace program; Online command; Define a macro file; Macro commands; Counters and MCA; Counters usage; Counters database; Feedback Counter Database; MCA functions and macro command; X window Interclient Communication; and How to get around in UNIX
Date: January 12, 1993
Creator: Feng-Berman, S.K.
System: The UNT Digital Library
Computation and graphics in mathematical research (open access)

Computation and graphics in mathematical research

Current research is described on: grain boundaries and dislocations in compound polymers, boundary value problems for hypersurfaces constant Gaussian curvature, and discrete computational geometry. 19 refs, 4 figs.
Date: June 1, 1993
Creator: Hoffman, D.A. & Spruck, J.
System: The UNT Digital Library
IGR NO[sub x]/SO[sub x] control technology (open access)

IGR NO[sub x]/SO[sub x] control technology

The technical work during this reporting term has principally involved the continued development, optimization and improvement of freezing drying techniques for solid ceramic oxide electrolyte powder preparation, preliminary optimization of the calcining of the ceramic electrolyte freeze dried powders to allow for optimum processing to the IGR composite, and determining (initial) electrochemical properties of the stabilized ceramic solid electrolyte at a variety of temperatures in air.
Date: April 25, 1993
Creator: unknown
System: The UNT Digital Library
Field Review of Fish Habitat Improvement Projects in Central Idaho. (open access)

Field Review of Fish Habitat Improvement Projects in Central Idaho.

The goal of this field review was to provide information to the Bonneville Power Administration (BPA) regarding previous and ongoing fish habitat improvement projects in central Idaho. On July 14, 1992, the review team met at the Sawtooth National Recreation Area office near Ketchum, Idaho, for a slide presentation illustrating several habitat projects during their construction phases. Following the slide presentation, the review team inspected fish habitat projects that have been implemented in the last several years in the Stanley Basin and adjacent valleys. At each site the habitat project was described to the field team and a brief period for project inspection followed. The review team visited approximately a dozen sites on the Challis, Sawtooth, and Boise National Forests over a period of approximately two and a half days. There are two objectives of this review namely to summarize observations for specific field sites and to provide overview commentary regarding the BPA habitat improvement program in central Idaho.
Date: May 1, 1993
Creator: Beschta, Robert L.; Griffith, Jack & Wesche, Thomas A.
System: The UNT Digital Library
The radial scale length of turbulent fluctuations in the main core of TFTR plasmas (open access)

The radial scale length of turbulent fluctuations in the main core of TFTR plasmas

A new theory of microwave reflectometry in tokamaks has been developed which accounts for all the major characteristics of waves reflected from strong fluctuations near the cutoff layer. The theory has been used for studying the turbulence in the main core of neutral beam heated plasmas of the TFTR tokamak in the supershot regime. The results indicate that the radial correlation length of density fluctuations is a weak decreasing function of beam power, from [approximately]4 cm in Ohmic to [approx]2 cm at 14 MW of heating power. This corresponds to the range of wavelengths k[sub [perpendicular]][rho][sub i][approx]0.1--0.3. Over the same interval of heating powers, the level of density fluctuations is observed to steadily increase with beam power by more than an order of magnitude. This trend is inconsistent with mixing length estimates of the fluctuation level.
Date: July 1, 1993
Creator: Mazzucato, E. & Nazikian, R.
System: The UNT Digital Library
On the economic analysis of problems in energy efficiency: Market barriers, market failures, and policy implications (open access)

On the economic analysis of problems in energy efficiency: Market barriers, market failures, and policy implications

In his recent paper in The Energy Journal, Ronald Sutherland argues that several so-called market barriers'' to energy efficiency frequently cited in the literature are not market failures in the conventional sense and are thus irrelevant for energy policy. We argue that Sutherland has inadequately analyzed the idea of market barrier and misrepresented the policy implications of microeconomics. We find that economic theory, correctly interpreted, does not provide for the categorical dismissal of market barriers. We explore important methodological issues underlying the debate over market barriers, and discuss the importance of reconciling the findings of non-economic social sciences with the economic analysis of energy demand and consumer decision-making. We also scrutinize Sutherland's attempt to apply finance theory to rationalize high implicit discount rates observed in energy-related choices, and find this use of finance theory to be inappropriate.
Date: January 1, 1993
Creator: Sanstad, A. H.; Koomey, J. G. & Levine, M. D.
System: The UNT Digital Library
DOE/KEURP Site Operator Program (open access)

DOE/KEURP Site Operator Program

A second successful year has been completed of demonstrating and evaluating electric vehicle technology. The G-Van has begun to show signs of system failure (<10 miles/charge). The DSEP minivan remains idle. The Soleq vehicle performed well.
Date: 1993
Creator: Hague, J. R.
System: The UNT Digital Library
The European nuclear power industry: Restructuring for combined strength and worldwide leadership (open access)

The European nuclear power industry: Restructuring for combined strength and worldwide leadership

The European nuclear power industry is being restructured from an industry drawn along national lines to a European-wide industry. This, in part, reflects growth of the European Economic Community, but it also reflects changes in the international nuclear power industry. The objectives of the participants, beyond better integration of the nuclear industry in Western Europe, are to (1) obtain European leadership of the worldwide commercial nuclear power industry, (2) improve medium- and long-term safety of Eastern Europe and the former Soviet Union (FSU) power reactors, and (3) reduce domestic concerns about nuclear power. The activities to achieve these goals include (1) formation of Nuclear Power International (a joint venture of the German and French nuclear power plant vendors for design and construction of nuclear power plants), (2) formation of a utility group to forge agreement throughout Europe on what the requirements are for the next generation of nuclear power plants, and (3) agreement by regulators in multiple European countries to harmonize regulations. This is to be achieved before the end of the decade. These changes would allow a single design of nuclear power plant to be built anywhere in Europe. The creation of European-wide rules (utility requirements, engineering standards, and …
Date: June 18, 1993
Creator: Forsberg, C.W.; Norman, R.E.; Reich, W.J. & Hill, L.J.
System: The UNT Digital Library
Conical geometry for sagittal focusing as applied to X rays from synchrotrons (open access)

Conical geometry for sagittal focusing as applied to X rays from synchrotrons

The authors describe a method for simultaneously focusing and monochromatization of X rays from a fan of radiation having up to 15 mrad divergence in one dimension. This geometry is well suited to synchrotron radiation sources at magnifications of one-fifth to two and is efficient for X-ray energies between 3 and 40 keV (0.48 and 6.4 fJ). The method uses crystals bent to part of a cone for sagittal focusing and allows for the collection of a larger divergence with less mixing of the horizontal into the vertical divergence than is possible with X-ray mirrors. They describe the geometry required to achieve the highest efficiency when a conical crystal follows a flat crystal in a nondispersive two-crystal monochromator. At a magnification of one-third, the geometry is identical to a cylindrical focusing design described previously. A simple theoretical calculation is shown to agree well with ray-tracing results. Minimum aberrations are observed at magnifications near one. Applications of the conical focusing geometry to existing and future synchrotron radiation facilities are discussed.
Date: June 1, 1993
Creator: Ice, G. E. & Sparks, C. J.
System: The UNT Digital Library
Long-term Industrial Energy Forecasting (LIEF) model (18-sector version) (open access)

Long-term Industrial Energy Forecasting (LIEF) model (18-sector version)

The new 18-sector Long-term Industrial Energy Forecasting (LIEF) model is designed for convenient study of future industrial energy consumption, taking into account the composition of production, energy prices, and certain kinds of policy initiatives. Electricity and aggregate fossil fuels are modeled. Changes in energy intensity in each sector are driven by autonomous technological improvement (price-independent trend), the opportunity for energy-price-sensitive improvements, energy price expectations, and investment behavior. Although this decision-making framework involves more variables than the simplest econometric models, it enables direct comparison of an econometric approach with conservation supply curves from detailed engineering analysis. It also permits explicit consideration of a variety of policy approaches other than price manipulation. The model is tested in terms of historical data for nine manufacturing sectors, and parameters are determined for forecasting purposes. Relatively uniform and satisfactory parameters are obtained from this analysis. In this report, LIEF is also applied to create base-case and demand-side management scenarios to briefly illustrate modeling procedures and outputs.
Date: May 1993
Creator: Ross, M. H.; Thimmapuram, P.; Fisher, R. E. & Maciorowski, W.
System: The UNT Digital Library
[Synthetic and mechanistic investigation of olefin polymerization catalyzed by early transition metal compounds] (open access)

[Synthetic and mechanistic investigation of olefin polymerization catalyzed by early transition metal compounds]

During the second year we continued to prepare and characterize organoyttrium and organoscandium compounds for use as catalysts for polymerizing simple olefins and diolefins. Simple, one-component systems are being pursued, suitable for chain initiation, propagation, and termination studies. This document is divided into: dicarbollide derivatives of scandium as potential catalysts; design, synthesis, and characterization of the first isospecific [alpha] olefin polymerization catalysts; polymerization of [alpha] olefins and 1,5- hexadiene using organoscandium catalysts; and attempted preparations of diastereomeric Nb and Ta olefin/hydride and olefin/alkyl derivatives.
Date: January 1, 1993
Creator: Bercaw, J.E.
System: The UNT Digital Library
Gas conversion opportunities in LILCO's commercial sector (open access)

Gas conversion opportunities in LILCO's commercial sector

This report presents the results of a preliminary investigation into opportunities for gas conservation in Long Island Lighting Company's commercial sector. It focusses on gas-fired heating equipment. Various sources of data are examined in order to characterize the commercial buildings and equipment in the service territory. Several key pieces of information necessary to predict savings potential are identified. These include the efficiencies and size distribution of existing equipment. Twenty-one specific conservation measures are identified and their applicability is discussed in terms of equipment size. Recommendations include improving the characterization of existing buildings and equipment, and developing a greater understanding of the savings and costs of conservation measures, and their interactions, especially in the middle size range of buildings and equipment.
Date: March 1, 1993
Creator: Pierce, B.
System: The UNT Digital Library
Neutron stars and nuclei in the modified relativistic Hartree approximation (open access)

Neutron stars and nuclei in the modified relativistic Hartree approximation

The properties of neutron-rich matter and finite nuclei are in the modified relativistic Hartree approximation for several values of the renormalization scale, [mu], around the standard choice of [mu] equal to the nucleon mass, M. Observed neutron star masses do not effectively constrain the valve of [mu]. However, for finite nuclei the value [mu]/M=0.79, suggested by nuclear matter data, provides a good account of the bulk properties with a sigma mass of about 600 MeV. This value of [mu]/M renders the effective three- and four-body scalar self-couplings to be zero at 60% of equilibrium nuclear matter density, rather than in the vacuum. The matter part of the exchange diagram has little impact on the bulk properties of neutron stars.
Date: March 1, 1993
Creator: Prakash, M. (Minnesota Univ., Minneapolis, MN (United States) State Univ. of New York, Stony Brook, NY (United States). Dept. of Physics); Ellis, P.J. (Minnesota Univ., Minneapolis, MN (United States) Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory); Heide, E.K. (Minnesota Univ., Minneapolis, MN (United States)) & Rudaz, S. (Minnesota Univ., Minneapolis, MN (United States))
System: The UNT Digital Library
Construction of the Courant-Snyder invariants for the non-linear equations of motion and criterion for the long-term stability of the beam in a storage ring (open access)

Construction of the Courant-Snyder invariants for the non-linear equations of motion and criterion for the long-term stability of the beam in a storage ring

The Courant-Snyder invariants become Lyapunov functions when the [beta]-functions admit non-zero lower, and finite upper bounds. The long-term stability of motion then follows. This alternative criterion for the long-term stability of motion can be generalized to the nonlinear case. A single particle subjected to an arbitrary static magnetic field is considered in some detail, as an example.
Date: April 26, 1993
Creator: Garczynski, V.
System: The UNT Digital Library
Dynamic impact and pressure analysis of the insensitive munitions container PA103 with modified design features (open access)

Dynamic impact and pressure analysis of the insensitive munitions container PA103 with modified design features

This report presents analytical analyses of the insensitive munitions container PA103, with modified design features for a static internal pressure of 500 psi and for a dynamic impact resulting from a 7-ft free fall onto a rigid surface. The modified design features addressed by the analyses were the inclusion of a score pattern on the container cylindrical body and a plastic plate (fuse) sandwiched between metal flanges on the container end. The objectives of both the pressure and impact analyses were to determine if the induced stresses at the score patterns in the cylindrical body of the container were sufficient to induce failure. Analytical responses of the container to the imposed loads were obtained with finite element analysis methodology. The computer codes ABAQUS and VEC/DYNA3D were used to obtain the results. Results of the pressure analysis indicate that failure of the container body would be expected to occur at the score pattern for a static internal pressure of 500 psi. Also, results from three impact orientations for a 7-ft drop indicate that membrane stresses in the vicinity of the score pattern are above critical crack growth stress magnitudes, especially at low ([minus]60[degrees]F) temperatures.
Date: June 1, 1993
Creator: Handy, K.D.
System: The UNT Digital Library
Nuclear Medicine Program progress report for quarter ending March 31, 1993 (open access)

Nuclear Medicine Program progress report for quarter ending March 31, 1993

We have exploring the possibility of measuring urinary radioactivity as an index of pancreatic lipase activity after oral administration of a new triglyceride containing a radioactive iodine-1 25-labeled fatty acid moiety. The new agent, 1,2-dipalmitoyl-3[15-(p-iodophenyl)pentandecan-l-oyl]-racglycerol (1,2-Pal-3-IPPA), was prepared by the thallation-iodide displacement method. Following oral gavage of the radioiodinated triglyceride to rats, about 30% of the administered activity was excreted in 24 hours in the urine. In normal human controls an higher urinary excretion (of about 75% was observed. In this report, we describe an evaluation of the metabolites excreted in the urine and the chemical species stored in adipose from rats. The urine activity co-chromatographed with hippuric acid by TLC indicating conjugation of the IPPA metabolites. Release of the acidic components from the conjugated excretory products by acid hydrolysis of the urine provided the radioactive acidic IPPA metabolites. Analysis of the Folch extracts of fat samples from rats demonstrated that the radioactive components co-chromatographed In the triglyceride region. Recent studies in patients with compromised pancreatic exocrine function have demonstrated significantly decreased 24 hr. urinary excretion of about 25%, following oral administration of [1 -1 31]-1,2-Pal-3-IPPA. Thus, urine analysis after oral administration of [I -1 31]-1,2-Pal-3-IPPA may be a simple, …
Date: April 1, 1993
Creator: Knapp, F. F. Jr.; Ambrose, K. R.; Beets, A. L.; Callahan, A. P.; McPherson, D. W.; Mirzadeh, S. et al.
System: The UNT Digital Library
[Computer Science and Telecommunications Board activities] (open access)

[Computer Science and Telecommunications Board activities]

The board considers technical and policy issues pertaining to computer science, telecommunications, and associated technologies. Functions include providing a base of expertise for these fields in NRC, monitoring and promoting health of these fields, initiating studies of these fields as critical resources and sources of national economic strength, responding to requests for advice, and fostering interaction among the technologies and the other pure and applied science and technology. This document describes its major accomplishments, current programs, other sponsored activities, cooperative ventures, and plans and prospects.
Date: February 23, 1993
Creator: Blumenthal, M. S.
System: The UNT Digital Library
Surveillance of Site A and Plot M (open access)

Surveillance of Site A and Plot M

The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for CY 1992 are presented. The surveillance program is the ongoing remedial action that resulted from the 1976--1978 radiological characterization of the site. That study determined that very low levels of hydrogen-3 (as tritiated water) had migrated from the burial ground and were present in two nearby hand-pumped picnic wells. The current program consists of sample collection and analysis of air, surface and subsurface water, and bottom sediment. The results of the analyses are used to (1) determine the migration pathway of water from the burial ground (Plot M) to the hand-pumped picnic wells, (2) establish if buried radionuclides other than hydrogen-3 have migrated, and (3) generally characterize the radiological environment of the area. Hydrogen-3 in the Red Gate Woods picnic wells was still detected this year, but the average and maximum concentrations were significantly less than found earlier. Tritiated water continues to be detected in a number of wells, boreholes, dolomite holes, and a surface stream. For many years it was the only radionuclide found to have migrated in measurable quantities. Analyses since 1984 have indicated the presence of low levels …
Date: May 1, 1993
Creator: Golchert, N.W.
System: The UNT Digital Library
ARIES tokamak reactor study (open access)

ARIES tokamak reactor study

This report examines the feasibility of a standard poloidal diverter design for ARIES- 2/4 with the determination of the peak thermal loading on, and the plasma temperature facing a poloidal double null diverter. The ARIES-2/4 reactors produce 2,141 MW of fusion power of which 1712 MW is contained in the neutron channel. Of the remaining 429 MW of charged particle power, 47 MW is radiated from the core by bremsstrahlung and synchrotron modes to the vessel walls. The remaining 382 MW of charged particle or transport power crosses the core/edge interface. The fact that the bulk of the power is contained in the neutron channel makes the application of a poloidal divertor possible. The ARIES-2/4 diverter constraints for peak heat load and peak particle temperature are set by current technology and materials knowledge. Divertor geometry constraints are imposed by the plasma equilibrium and the 2/4 vacuum vessel. The diverter heat load and plasma temperatures are determined from edge particle and energy balances. These balances are important characteristics of the plasma edge because the transport power from the plasma core must pass through the edge and be deposited on tokamak components. The Braams' B2 code is a multifluid ion and electron …
Date: July 1, 1993
Creator: Steiner, D.
System: The UNT Digital Library