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MetaBrowser: A combined browsing, query, and analysis tool (open access)

MetaBrowser: A combined browsing, query, and analysis tool

The MetaBrowser design is based on the premise that scientists should not be forced to learn new languages or commands for finding the data they are interested in and for selecting subsets of the data for further analysis. Furthermore, there should be a single system that permits browsing, query, and analysis of the data, so that the scientist does not have to switch between systems. The current version for the MetaBrowser was designed for the DOE CEDR (Comprehensive Epidemiological Data Resource) project, but the same principles can apply to other scientific disciplines. Browsing and query should be combined. It is quite natural for a user to explore the information in the database before deciding what subset of the data to select for further analysis. In general, if there is a large number of datasets (i.e. databases) in the system, then the user would want to find out information about the various datasets (called metadata), before choosing one or more datasets for further exploration. Thus, a metadatabase that holds information about datasets in the systems must exist.
Date: April 1, 1991
Creator: Shoshani, A. & Szeto, E.
Object Type: Report
System: The UNT Digital Library
Analysis of energy use in building services of the industrial sector in California: A literature review and a preliminary characterization (open access)

Analysis of energy use in building services of the industrial sector in California: A literature review and a preliminary characterization

Energy use patterns in many of California's fastest-growing industries are not typical of those in the mix of industries elsewhere in the US. Many California firms operate small and medium-sized facilities, often in buildings used simultaneously or interchangeably for commercial (office, retail, warehouse) and industrial activities. In these industrial subsectors, the energy required for building services'' to provide occupant comfort and necessities (lighting, HVAC, office equipment, computers, etc.) may be at least as important as the more familiar process energy requirements -- especially for electricity and on-peak demand. In this report, published or unpublished information on energy use for building services in the industrial sector have been compiled and analyzed. Seven different sources of information and data relevant to California have been identified. Most of these are studies and/or projects sponsored by the Department of Energy, the California Energy Commission, and local utilities. The objectives of these studies were diverse: most focused on industrial energy use in general, and, in one case, the objective was to analyze energy use in commercial buildings. Only one of these studies focused directly on non-process energy use in industrial buildings. Our analysis of Northern California data for five selected industries shows that the contribution …
Date: April 1, 1991
Creator: Akbari, H.; Borgers, T.; Gadgil, A. & Sezgen, O.
Object Type: Report
System: The UNT Digital Library
Wildlife Protection, Mitigation, and Enhancment Plan: Minidoka Dam: Final Report. (open access)

Wildlife Protection, Mitigation, and Enhancment Plan: Minidoka Dam: Final Report.

A wildlife protection, mitigation, and enhancement plan has been developed for the US Bureau of Reclamation's Minidoka Dam and Reservoir in south-central Idaho. Specific objectives of this study included the following: Develop protection, mitigation, and enhancement goals and objectives for target wildlife species; identify potential protection, mitigation, and enhancement opportunities to achieve the mitigation objectives; and coordinate project activities with agencies, tribes, and the public. The interagency work group previously assessed the impacts of Minidoka Dam on wildlife. There were estimated losses of 10,503 habitat units (HU's) for some target wildlife species and gains of 5,129 HU's for other target species. The work group agreed that mitigation efforts should be directed toward target species that were negatively impacted by Minidoka Dam. They developed the following prioritized mitigation goals: 1,531 river otter HU's in riparian/river habitat, 1,922 sage grouse HU's in shrub-steppe (sagebrush-grassland) habitat, 1,746 mule deer HU's in shrub-steppe habitat, and 175 yellow warbler HU's in deciduous scrub-shrub wetland habitat. The work group proposed the following preferred mitigation options, in priority order: Provide benefits of 1,706 river otter and yellow warbler HU's by protecting and enhancing riparian/river habitat in south central Idaho; and provide benefits of 3,668 sage grouse and …
Date: April 1, 1991
Creator: Meuleman, G. Allyn; Martin, Robert C. & Hansen, H. Jerome
Object Type: Report
System: The UNT Digital Library
[Letter from Cassandra Broadus to Jack Davis, March 1, 1991] (open access)

[Letter from Cassandra Broadus to Jack Davis, March 1, 1991]

Photocopy of a letter from Cassandra Broadus to Jack Davis discussing final details about Art-O-Gram, an art education newspaper series. Broadus writes that she has a meeting with Melinda Mayer to discuss the Amon Carter's contributes to Art-O-Gram, along with a meeting with Marilyn Ingram to discuss the Kimbell Art Museums' potential contribution. Enclosed in the letter to Davis is the Art-O-Gram's calendar.
Date: April 1, 1991
Creator: Broadus, Cassandra
Object Type: Letter
System: The UNT Digital Library
Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis (open access)

Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis

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, metal bearing microdrops offer unique opportunities for synthesizing very small particles by providing a cage-like effect that limits particle nucleation, growth and agglomeration. The emphasis will be on iron- and molybdenum-based catalysts, but the techniques to be developed should also be generally applicable. The size of these very small and monodispersed particles will be accurately determined both separately and after in situ and ex situ coal impregnation. The as-prepared nanoparticles as well as the catalyst-impregnated coal or char matrix will be characterized using the following techniques: dynamic light scattering, x-ray diffraction, x-ray photoelectron spectroscopy, scanning and/or transmission electron microscopy, and selective chemisorption.
Date: April 1, 1991
Creator: Osseo-Asare, K. & Radovic, L.R.
Object Type: Report
System: The UNT Digital Library
Excited state absorption measurements of Sm sup 2+ in CaF sub 2 , SrF sub 2 , and SrCl sub 2 (open access)

Excited state absorption measurements of Sm sup 2+ in CaF sub 2 , SrF sub 2 , and SrCl sub 2

We measured the pump-probe spectrum of the Sm{sup 2+} ion in three materials: CaF{sub 2}, SrF{sub 2}, and SrCl{sub 2}. The onset of the observed prominent excited-state absorption band is consistent with an electrostatic model for impurity levels in a solid-state material. 15 refs., 4 figs., 1 tab.
Date: April 1, 1991
Creator: Lawson, J. K.; Lee, H. W. H.; Payne, S. A. (Lawrence Livermore National Lab., CA (United States)) & Boatner, L. A. (Oak Ridge National Lab., TN (United States))
Object Type: Article
System: The UNT Digital Library
Lighting Options for Homes. (open access)

Lighting Options for Homes.

This report covers many aspects of various lighting options for homes. Types of light sources described include natural light, artificial light, incandescent lamps, fluorescent lamps, and high intensity discharge lamps. A light source selection guide gives the physical characteristics of these, design considerations, and common applications. Color, strategies for efficient lighting, and types of lighting are discussed. There is one section giving tips for various situations in specific rooms. Rooms and types of fixtures are shown on a matrix with watts saved by using the recommended type lighting for that room and room location. A major emphasis of this report is saving energy by utilizing the most suitable, recommended lighting option. (BN)
Date: April 1, 1991
Creator: Baker, W.S.
Object Type: Report
System: The UNT Digital Library
Life sciences (open access)

Life sciences

This document is the 1989--1990 Annual Report for the Life Sciences Divisions of the University of California/Lawrence Berkeley Laboratory. Specific progress reports are included for the Cell and Molecular Biology Division, the Research Medicine and Radiation Biophysics Division (including the Advanced Light Source Life Sciences Center), and the Chemical Biodynamics Division. 450 refs., 46 figs. (MHB)
Date: April 1, 1991
Creator: Day, L.
Object Type: Report
System: The UNT Digital Library
Comparison of Predicted Optical Performance With Measured Results for Dish Concentrators (open access)

Comparison of Predicted Optical Performance With Measured Results for Dish Concentrators

Several optical design tools have been developed at the National Renewable Energy Laboratory (NREL) during the past two years. These have been used extensively both in-house and by industry to analyze dish concentrator systems and to optimize performance of such designs. The first program, OPTDSH, models single-element dish concentrators. The second code, ODMF, allows multifacet dish arrays to be modeled. The accuracy of performance simulations by these programs has been established by comparing predicted results with measured on-sun data. ODMF evolved from NREL's High-Flux Solar Furnace (HFSF) design tool, SOLFUR, and in fact is a special case of SOLFUR in which the primary facet array is on sun.'' Consequently, confirmation of the accuracy of SOLFUR would verify the results from ODMF as well. Furthermore, because OPTDSH can be viewed as a single-facet case of ODMF, determination of the precision of SOLFUR/ODMF would also substantiate OPTDSH. Thus, the approach to verifying the correctness of all three codes was to compare flux patterns as predicted by SOLFUR with those actually measured at NREL's HFSF. Measured vs. calculated data have been compared on the basis of flux distribution (in terms of contour plots) and peak flux for both single-facet and multiple-facet cases. Agreement …
Date: April 1, 1991
Creator: Jorgensen, G.
Object Type: Article
System: The UNT Digital Library
Emission cross sections and energy extraction for the mid-infrared transitions of Er, Tm, and Ho in oxide and fluoride crystals (open access)

Emission cross sections and energy extraction for the mid-infrared transitions of Er, Tm, and Ho in oxide and fluoride crystals

Emission cross sections have been measured for the transitions between the two lowest spin orbit multiplets of Er, Tm, and Ho in several fluoride and oxide crystals. Properties affecting energy extraction efficiency are summarized and pulsed extraction performance is calculated for several of these quasi-three-level laser media. 4 refs., 9 figs.
Date: April 1, 1991
Creator: Chase, L. L.; Payne, S. A.; Smith, L. K.; Kway, W. L. & Krupke, W. F.
Object Type: Article
System: The UNT Digital Library
Non-stoichiometric defects in YBaCuO thin films (open access)

Non-stoichiometric defects in YBaCuO thin films

Defects in superconducting YBaCuO thin films deposited by laser ablation are investigated by high resolution transmission electron microscopy. Micrographs reveal numerous defects in the YBaCuO film, falling into four basic classes. One of these is an interesting, non-stoichiometric helical defect structure which possibly corresponds to a growth-related screw dislocation. In general, defects in the YBaCuO film are associated both with growth geometry and with local deviations in stoichiometry. Substrate surface geometry is seen to have a profound effect on the number and type of defects produced. Simulation of annealing transformations using a static lattice, three dimensional, Monte Carlo technique is carried out to gain further insight into specific defect formation mechanisms. The results of these studies suggest preparation conditions that are expected to lead to films with improved critical current densities. 17 refs., 6 figs.
Date: April 1, 1991
Creator: Fendorf, M.; Tidjani, M.; Burmester, C.; Gronsky, R. (Lawrence Berkeley Lab., CA (United States)) & Wille, L. (Florida Atlantic Univ., Boca Raton, FL (United States). Dept. of Physics)
Object Type: Article
System: The UNT Digital Library
A comparison of radioactive waste from first generation fusion reactors and fast fission reactors with actinide recycling (open access)

A comparison of radioactive waste from first generation fusion reactors and fast fission reactors with actinide recycling

Limitations of the fission fuel resources will presumably mandate the replacement of thermal fission reactors by fast fission reactors that operate on a self-sufficient closed fuel cycle. This replacement might take place within the next one hundred years, so the direct competitors of fusion reactors will be fission reactors of the latter rather than the former type. Also, fast fission reactors, in contrast to thermal fission reactors, have the potential for transmuting long-lived actinides into short-lived fission products. The associated reduction of the long-term activation of radioactive waste due to actinides makes the comparison of radioactive waste from fast fission reactors to that from fusion reactors more rewarding than the comparison of radioactive waste from thermal fission reactors to that from fusion reactors. Radioactive waste from an experimental and a commercial fast fission reactor and an experimental and a commercial fusion reactor has been characterized. The fast fission reactors chosen for this study were the Experimental Breeder Reactor 2 and the Integral Fast Reactor. The fusion reactors chosen for this study were the International Thermonuclear Experimental Reactor and a Reduced Activation Ferrite Helium Tokamak. The comparison of radioactive waste parameters shows that radioactive waste from the experimental fast fission reactor …
Date: April 1, 1991
Creator: Koch, M. & Kazimi, M.S.
Object Type: Report
System: The UNT Digital Library
National briefing summaries: Nuclear fuel cycle and waste management (open access)

National briefing summaries: Nuclear fuel cycle and waste management

Since 1976, the International Program Support Office (IPSO) at the Pacific Northwest Laboratory (PNL) has collected and compiled publicly available information concerning foreign and international radioactive waste management programs. This National Briefing Summaries is a printout of an electronic database that has been compiled and is maintained by the IPSO staff. The database contains current information concerning the radioactive waste management programs (with supporting information on nuclear power and the nuclear fuel cycle) of most of the nations (except eastern European countries) that now have or are contemplating nuclear power, and of the multinational agencies that are active in radioactive waste management. Information in this document is included for three additional countries (China, Mexico, and USSR) compared to the prior issue. The database and this document were developed in response to needs of the US Department of Energy.
Date: April 1, 1991
Creator: Schneider, K. J.; Bradley, D. J.; Fletcher, J. F.; Konzek, G. J.; Lakey, L. T.; Mitchell, S. J. et al.
Object Type: Report
System: The UNT Digital Library
FDA Approved Registration of Erythromycin for Treatment of Bacterial Kidney Disease (BKD) in Juvenile and Adult Chinook Salmon : Annual Report, Reporting Period March 10, 1989 to March 9, 1990. (open access)

FDA Approved Registration of Erythromycin for Treatment of Bacterial Kidney Disease (BKD) in Juvenile and Adult Chinook Salmon : Annual Report, Reporting Period March 10, 1989 to March 9, 1990.

Erythromycin is a therapeutic substance useful against bacterial kidney disease in salmon. In 1989 we began a multi year project to learn more about erythromycin applied to juvenile and adult salmon, with the goal of achieving registration of erythromycin with the US Food and Drug Administration. To begin the study, we studied the pharmacokinetics of erythromycin administered to both adult and juvenile chinook salmon. We monitored blood plasmas time curves from individual adult fish injected with two forms of injectable erythromycin using one of three routes of administration. In addition, we began experiments to evaluate hatchery applications of erythromycin to individually marked adult salmon, and we recovered blood tissues from these fish at the time of spawning. To determine how to use erythromycin in juvenile salmon, we evaluated the adsorption and elimination of erythromycin applied arterially and orally to individual juvenile fish. In feeding trials we determined the palatability to juvenile chinook salmon of feed made with one of two different carriers for erythromycin thiocyanate. 35 refs., 4 figs. , 3 tabs.
Date: April 1, 1991
Creator: Moffitt, Christine A.
Object Type: Report
System: The UNT Digital Library
Application Experience and Field Performance of Silvered Polymer Reflectors (open access)

Application Experience and Field Performance of Silvered Polymer Reflectors

The solar-weighted hemispheric reflectance of unweathered silvered acrylic mirrors exceeds 92%, and specular reflectance into a 4- milliradian, full-cone acceptance angle is greater than 90%. Comparison of outdoor and accelerated tests suggests that the protected silver can resist corrosion for the five-year life that is the current goal. An installation of parabolic troughs has been cleaned monthly for two years, and reflectance is regularly returned to within a few percent of the initial reflectance values. In the presence of moisture, the silver/acrylic bond can delaminate to form a maze of tunnels and destroy specular reflectance. Proper edge preparation and protection delay the initiation of tunnels. 6 refs.
Date: April 1, 1991
Creator: Schissel, P.; Jorgensen, G. & Pitts, R.
Object Type: Article
System: The UNT Digital Library
Alternative positron-target design for electron-positron colliders (open access)

Alternative positron-target design for electron-positron colliders

Current electron-positron linear colliders are limited in luminosity by the number of positrons which can be generated from targets presently used. This paper examines the possibility of using an alternate wire-target geometry for the production of positrons via an electron-induced electromagnetic cascade shower. 39 refs., 38 figs., 5 tabs.
Date: April 1, 1991
Creator: Donahue, R. J. & Nelson, W. R.
Object Type: Report
System: The UNT Digital Library
Environmentally sound irrigated agriculture in the arid west: New challenges for water resources planners and environmental scientists (open access)

Environmentally sound irrigated agriculture in the arid west: New challenges for water resources planners and environmental scientists

This is an exciting time for water resources planners and environmental scientists in the State and Federal Agencies in California. The growing environmental awareness of the public has raised their interest in the manner by which water is managed and allocated. Current and future impending water shortages are challenging engineers and planners to make sound policy and system operations decisions to maximize the utility of scarce water resources while ensuring that the environment within which we live is adequately protected to the satisfaction of an informed public. New and innovative decision support systems are needed to meet these challenges that are flexible, comprehensible and accurate and which allow the public a more visible role in the planning process. These changes may help to bring the agricultural and environmental communities closer together in finding solutions to water resources problems and wrest policy making for water resources management out of the hands of lawyers and the courts and restore it to those whose livelihoods are affected by the intentions of these policies. 4 refs.
Date: April 1, 1991
Creator: Quinn, N.W.T.
Object Type: Article
System: The UNT Digital Library
Nuclear Science Division, Annual report, October 1, 1988--December 31, 1990 (open access)

Nuclear Science Division, Annual report, October 1, 1988--December 31, 1990

This report contains short papers of research conducted in the following areas: Low energy research program; bevalac research program; ultrarelativistic research program; nuclear theory program; nuclear data evaluation; and, 88-inch cyclotron operations.
Date: April 1, 1991
Creator: Poskanzer, A. M.; Deleplanque, M. A.; Firestone, R. B. & Lofdahl, J. B. (eds.)
Object Type: Report
System: The UNT Digital Library
[Experimental and Theoretical Basic Research in High Energy Physics] (open access)

[Experimental and Theoretical Basic Research in High Energy Physics]

This report discusses the measurement of charm and b decays via hadronic production in a hybrid emulsion spectrometer, quantum chromodynamics, quantum electrodynamics, weak interactions, and cosmological applications. (LSP)
Date: April 1, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Elastic tracking versus neural network tracking for very high multiplicity problems (open access)

Elastic tracking versus neural network tracking for very high multiplicity problems

A new Elastic Tracking (ET) algorithm is proposed for finding tracks in very high multiplicity and noisy environments. It is based on a dynamical reinterpretation and generalization of the Radon transform and is related to elastic net algorithms for geometrical optimization. ET performs an adaptive nonlinear fit to noisy data with a variable number of tracks. Its numerics is more efficient than that of the traditional Radon or Hough transform method because it avoids binning of phase space and the costly search for valid minima. Spurious local minima are avoided in ET by introducing a time-dependent effective potential. The method is shown to be very robust to noise and measurement error and extends tracking capabilities to much higher track densities than possible via local road finding or even the novel Denby-Peterson neural network tracking algorithms. 12 refs., 2 figs.
Date: April 1, 1991
Creator: Harlander, M. & Gyulassy, M.
Object Type: Article
System: The UNT Digital Library
Hanford Environmental Dose Reconstruction Project Monthly Report (open access)

Hanford Environmental Dose Reconstruction Project Monthly Report

The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that populations could have received from nuclear operations at Hanford since 1944. The project is being managed and conducted by the Pacific Northwest Laboratory (PNL) under the direction of an independent Technical Steering Panel (TSP). The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed, from released to impact on humans (dose estimates): source terms; environmental transport; environmental monitoring data; demographics, agriculture, food habits; and, environmental pathways and dose estimates.
Date: April 1, 1991
Creator: Finch, S.M. & McMakin, A.H. (comps.)
Object Type: Report
System: The UNT Digital Library
Longitudinal instability in HIF beams (open access)

Longitudinal instability in HIF beams

In contrast to an electron induction accelerator, in which the particle velocity is virtually constant, the resistive and inductive components of accelerating module impedances can cause instability for an intense non-relativistic heavy ion beam accelerated in a similar structure. Since focusing requirements at the fusion pellet imply a momentum spread {approx lt}3 {times} 10{sup {minus}4} at the end of the accelerator, it is essential to understand and suppress this instability. There is also an economic issue involved for this application; selection of parameters to control the instability must not unduly affect the efficiency and cost of the accelerator. This paper will present the results of analytic and computational work on module impedances, growth rates and feed back (forward) systems. 2 refs., 3 figs.
Date: April 1, 1991
Creator: Smith, L.
Object Type: Article
System: The UNT Digital Library
A preliminary investigation of acid-catalyzed polymerization reactions of shale oil distillates (open access)

A preliminary investigation of acid-catalyzed polymerization reactions of shale oil distillates

Sinor (1989) reported that a major specialty market may exist for shale oil as an asphalt blending material. Shale oil can be converted to an asphalt blending material by acid catalyzed condensation and polymerization reactions of the many molecular species comprising the composition of shale oil. To simplify the investigation, crude shale oil was separated by distillation into three distillates of different hydrocarbon and heteroaromatic compositions. These distillates were then treated with two different types of acids to determine the effect of acid type on the end products. Three western shale oil distillates, a naphtha, a middle distillate, and an atmospheric gas oil, were reacted with anhydrous AlCl{sub 3} and 85% H{sub 2}SO{sub 4} under low-severity conditions. At relatively low temperatures, little change in the hydrocarbon composition was noted for the AlCl{sub 3} reactions. AlCl{sub 3}{center dot} (a polymerized product and/or complex) was formed. However, it is assumed that the sludge was mainly the result of heteroaromatic-AlCl{sub 3} reactions.
Date: April 1, 1991
Creator: Netzel, D.A.
Object Type: Report
System: The UNT Digital Library
Apiary B Factory lattice design (open access)

Apiary B Factory lattice design

The Apiary B Factory is a proposed high-intensity electron-positron collider. This paper will present the lattice design for this facility, which envisions two rings with unequal energies in the PEP tunnel. The design has many interesting optical and geometrical features due to the needs to conform to the existing tunnel, and to achieve the necessary emittances, damping times and vacuum. Existing hardware is used to a maximum extent. 8 figs. 1 tab.
Date: April 1, 1991
Creator: Donald, M.H.R. (Stanford Linear Accelerator Center, Menlo Park, CA (USA)) & Garren, A.A. (Lawrence Berkeley Lab., CA (USA))
Object Type: Article
System: The UNT Digital Library