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Deep Borehole Instrumentation Along San Francisco Bay Bridges - 2000
This is a progress report on the Bay Bridges downhole network. Between 2 and 8 instruments have been spaced along the Dumbarton, San Mateo, Bay, and San Rafael bridges in San Francisco Bay, California. The instruments will provide multiple use data that is important to geotechnical, structural engineering, and seismological studies. The holes are between 100 and 1000 ft deep and were drilled by Caltrans. There are twenty-one sensor packages at fifteen sites. The downhole instrument package contains a three component HS-1 seismometer and three orthogonal Wilcox 731 accelerometers, and is capable of recording a micro g from local M = 1.0 earthquakes to 0.5 g strong ground motion form large Bay Area earthquakes. Preliminary results on phasing across the Bay Bridge, up and down hole wave amplification at Yerba Buena Island, and sensor orientation analysis are presented. Events recorded and located during 1999 are presented. Also, a senior thesis on the deep structure of the San Francisco Bay beneath the Bay Bridge is presented as an addendum.
Date:
March 1, 2000
Creator:
Hutchings, L.; Kasameyer, P.; Turpin, C.; Long, L.; Hollfelder, J.; McEvilly, T. et al.
Object Type:
Report
System:
The UNT Digital Library
Defense Budget: Real Property Maintenance and Base Operations Fund Movements
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Department of Defense's (DOD) real property maintenance and base operations fund movements, focusing on the: (1) movement of funds to and from real property maintenance and base operations during fiscal years 1994 through 1999; (2) movement of unit training funds during the same period of time; and (3) evidence indicating that unit training funds have been moved to pay for base operations and real property maintenance."
Date:
March 1, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Depot Maintenance: Future Year Estimates of Public and Private Workloads Are Likely to Change
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Department of Defense's annual reports on depot maintenance, focusing on how military departments or defense agencies: (1) used funds appropriated annually for depot-level repair and maintenance done by contractor personnel; and (2) reported on estimated funds to be used for performing depot maintenance by public and private sector personnel for fiscal years 1999-2005."
Date:
March 1, 2000
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The design, fabrication, and testing of WETF high-quality, long-term-storage, secondary containment vessels
Los Alamos National Laboratory's Weapons Engineering Tritium Facility (WETF) requires secondary containment vessels to store primary tritium containment vessels. The primary containment vessel provides the first boundary for tritium containment. The primary containment vessel is stored within a secondary containment vessel that provides the secondary boundary for tritium containment. WETF requires high-quality, long-term-storage, secondary tritium containment vessels that fit within a Mound-designed calorimeter. In order to qualify the WETF high-quality, long-term-storage, secondary containment vessels for use at WETF, steps have been taken to ensure the appropriate design, adequate testing, quality in fabrication, and acceptable documentation.
Date:
March 1, 2000
Creator:
Fisher, Kane J.
Object Type:
Report
System:
The UNT Digital Library
A design methodology for unattended monitoring systems
The authors presented a high-level methodology for the design of unattended monitoring systems, focusing on a system to detect diversion of nuclear materials from a storage facility. The methodology is composed of seven, interrelated analyses: Facility Analysis, Vulnerability Analysis, Threat Assessment, Scenario Assessment, Design Analysis, Conceptual Design, and Performance Assessment. The design of the monitoring system is iteratively improved until it meets a set of pre-established performance criteria. The methodology presented here is based on other, well-established system analysis methodologies and hence they believe it can be adapted to other verification or compliance applications. In order to make this approach more generic, however, there needs to be more work on techniques for establishing evaluation criteria and associated performance metrics. They found that defining general-purpose evaluation criteria for verifying compliance with international agreements was a significant undertaking in itself. They finally focused on diversion of nuclear material in order to simplify the problem so that they could work out an overall approach for the design methodology. However, general guidelines for the development of evaluation criteria are critical for a general-purpose methodology. A poor choice in evaluation criteria could result in a monitoring system design that solves the wrong problem.
Date:
March 1, 2000
Creator:
Smith, James D. & DeLand, Sharon M.
Object Type:
Report
System:
The UNT Digital Library
[Desire Some Freckles at Super Stakes 2000]
Photograph of rider Sam Shepard competing in a cutting event with horse Desire Some Freckles at the N.C.H.A Superstakes event in Ft. Worth, Texas. Desire Some Freckles is owned by Rockin 5 Ranch LLC.
Date:
[2000-03..2000-04]
Creator:
Don Shugart Photography
Object Type:
Photograph
System:
The UNT Digital Library
Development of Probabilistic Design Basis Earthquake (DBE) Parameters for Moderate and High Hazard Facilities at INEEL
Design Basis Earthquake (DBE) horizontal and vertical response spectra are developed for moderate and high hazard facilities or Performance Categories (PC) 3 and 4, respectively, at the Idaho National Engineering and Environmental Laboratory (INEEL). The probabilistic DBE response spectra will replace the deterministic DBE response spectra currently in the U.S. Department of Energy Idaho Operations Office (DOE-ID) Architectural Engineering Standards that govern seismic design criteria for several facility areas at the INEEL. Probabilistic DBE response spectra are recommended to DOE Naval Reactors for use at the Naval Reactor Facility at INEEL. The site-specific Uniform Hazard Spectra (UHS) developed by URS Greiner Woodward Clyde Federal Services are used as the basis for developing the DBE response spectra. In 1999, the UHS for all INEEL facility areas were recomputed using more appropriate attenuation relationships for the Basin and Range province. The revised UHS have lower ground motions than those produced in the 1996 INEEL site-wide probabilistic ground motion study. The DBE response spectra were developed by incorporating smoothed broadened regions of the peak accelerations, velocities, and displacements defined by the site-specific UHS. Portions of the DBE response spectra were adjusted to ensure conservatism for the structural design process.
Date:
March 1, 2000
Creator:
Payne, S. M.; Gorman, V. W.; Jensen, S. A.; Nitzel, M. E.; Russell, M. J. & Smith, R. P.
Object Type:
Report
System:
The UNT Digital Library
DGS Newsletter, Volume 24, Number 3, March 2000
Newsletter of the Dallas Genealogical Society discussing membership, Society meetings, genealogical workshops and events, and other news of interest to members.
Date:
March 2000
Creator:
Dallas Genealogical Society
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Diagnosis and correction of soil nutrient limitations in intensively managed Southern pine forests. Quarterly report for the period January-March 2000
This report is a summary of project status and activities performed during the quarter: (1) Initial error runs were finished and coding was adjusted to account for errors. A documentation manual and users manual have been written and gone through the first editing. The model was presented to the forest industry during a review meeting and adjustments were made to the model based on their input. The model has been sent to interested parties in Canada and Australia to test it and report back on any errors or modifications they feel would be necessary. (2) Based on the laboratory studies, one paper was written and submitted to the Soil and Water Science for internal review. It is currently under internal review. This paper describes a method for measuring resorption isotherms. A second paper that uses this method to investigate desorption isotherms for different soils is in progress. (3) All soil samples have been dried and sieved. All tissue samples have been ground and the ashing of the tissue samples has just begun. (4) A literature search continued focusing on root to shoot relationships of fast growing pine in order to assist the development of the nutrient demand section of the …
Date:
March 1, 2000
Creator:
Comerford, N.B.
Object Type:
Report
System:
The UNT Digital Library
Diagnostics of Plasma Channel for HIF Transport
None
Date:
March 1, 2000
Creator:
Ponce, D. M.; Niemann, C.; Yu, S. S.; Leemans, W. P.; Fessenden, T. J.; Dahl backa, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Diesel Emission Reduction By On-Board Fuel Reformulation. Final Report
In this Phase 1 proposal, four tasks were investigated: plasma reforming in the mode of energy neutral reforming, testing in a diesel engine with hydrogen injection (port-injection), analysis of the data, and system analysis. It was demonstrated that it is feasible using a compact microplasmatron fuel converter to obtain near energy neutral reforming. Hydrogen addition was used in a compression ignition engine and a factor of 10 decrease in the particulate size concentration and mass was achieved.
Date:
March 1, 2000
Creator:
Jassby, D. L.; Rabinovich, A.; Bromberg, L. & Domingo, N.
Object Type:
Report
System:
The UNT Digital Library
Disposition of Uranium -233 (sup 233U) in Plutonium Metal and Oxide at the Rocky Flats Environmental Technology Site
This report documents the position that the concentration of Uranium-233 ({sup 233}U) in plutonium metal and oxide currently stored at the DOE Rocky Flats Environmental Technology Site (RFETS) is well below the maximum permissible stabilization, packaging, shipping and storage limits. The {sup 233}U stabilization, packaging and storage limit is 0.5 weight percent (wt%), which is also the shipping limit maximum. These two plutonium products (metal and oxide) are scheduled for processing through the Building 371 Plutonium Stabilization and Packaging System (PuSPS). This justification is supported by written technical reports, personnel interviews, and nuclear material inventories, as compiled in the ''History of Uranium-233 ({sup 233}U) Processing at the Rocky Flats Plant In Support of the RFETS Acceptable Knowledge Program'' RS-090-056, April 1, 1999. Relevant data from this report is summarized for application to the PuSPS metal and oxide processing campaigns.
Date:
March 1, 2000
Creator:
Freiboth, Cameron J. & Gibbs, Frank E.
Object Type:
Report
System:
The UNT Digital Library
DOE Sapphire Project
Since this is the first report for this project an extensive background section follows on the theory of operation of the single crystal sapphire sensor technology which will be developed and field tested at the Wabash River Coal Gasification Facility. Requirements for the temperature sensors for implementation in the coal gasifiers has been established in conjunction with the industrial partner, Dynegy. Coal slag immersion tests indicate good corrosion resistance of the single crystal sapphire. However, a more sophisticated corrosion apparatus has been constructed in order to test the optical attenuation of a single crystal sapphire fiber immersed in the coal slag at high temperature. These results will be reported in the next period. The data to date for sapphire sensor development is promising. More extensive data on the sapphire fiber sensor development will be reported for the next period.
Date:
March 1, 2000
Creator:
Pickrell, Gary R.
Object Type:
Report
System:
The UNT Digital Library
DOSAR/CalLab Operations Manual
The Life Sciences Division (LSD) of Oak Ridge National Laboratory (ORNL) has a long record of radiation dosimetry research, primarily using the Health Physics Research Reactor (HPRR) and the Dosimetry Applications Research (DOSAR) Program Calibration Laboratory (CalLab), referred to formerly as the Radiation Calibration Laboratory. These facilities have been used by a broad segment of the research community to perform a variety of experiments in areas including, but not limited to, radiobiology, radiation dosimeter and instrumentation development and calibration, and the testing of materials in a variety of radiation environments.
Date:
March 1, 2000
Creator:
Bogard, J.S.
Object Type:
Report
System:
The UNT Digital Library
The Double Oak Gazette (Double Oak, Tex.), Vol. 25, No. 3, Ed. 1 Wednesday, March 1, 2000
Monthly newspaper from Double Oak, Texas that includes news, information, and entertainment for residents of the Double Oak community along with advertising.
Date:
March 1, 2000
Creator:
Johnson, LaRue
Object Type:
Newspaper
System:
The Portal to Texas History
The East Tennessee Technology Park Progress Report for the Tennessee Hazardous Waste Reduction Act for Calendar Year 1999
This report is prepared for the East Tennessee Technology Park (formerly the Oak Ridge K-25 Site) (ETTP) in compliance with the ''Tennessee Hazardous Waste Reduction Act of 1990'' (THWRA) (TDEC 1990), Tennessee Code Annotated 68-212-306. Annually, THWRA requires a review of the site waste reduction plan, completion of summary waste reduction information as part of the site's annual hazardous waste reporting, and completion of an annual progress report analyzing and quantifying progress toward THWRA-required waste stream-specific reduction goals. This THWRA-required progress report provides information about ETTP's hazardous waste streams regulated under THWRA and waste reduction progress made in calendar year (CY) 1999. This progress report also documents the annual review of the site plan, ''Oak Ridge Operations Environmental Management and Enrichment Facilities (EMEF) Pollution Prevention Program Plan'', BJC/OR-306/R1 (Bechtel Jacobs Company 199a). In 1996, ETTP established new goal year ratios that extended the goal year to CY 1999 and targeted 50 percent waste stream-specific reduction goals. In CY 1999, these CY 1999 goals were extended to CY 2000 for all waste streams that generated waste in 1999. Of the 70 ETTP RCRA waste streams tracked in this report from base years as early as CY 1991, 51 waste streams met …
Date:
March 1, 2000
Creator:
LLC, Bechtel Jacobs Company
Object Type:
Report
System:
The UNT Digital Library
Effect of W coating on microengine performance
Two major problems associated with Si-based MEMS (MicroElectroMechanical Systems) devices are stiction and wear. Surface modifications are needed to reduce both adhesion and friction in micromechanical structures to solve these problems. In this paper, the authors present a CVD (Chemical Vapor Deposition) process that selectively coats MEMS devices with tungsten and significantly enhances device durability. Tungsten CVD is used in the integrated-circuit industry, which makes this approach manufacturable. This selective deposition process results in a very conformal coating and can potentially address both stiction and wear problems confronting MEMS processing. The selective deposition of tungsten is accomplished through the silicon reduction of WF{sub 6}. The self-limiting nature of the process ensures consistent process control. The tungsten is deposited after the removal of the sacrificial oxides to minimize stress and process integration problems. The tungsten coating adheres well and is hard and conducting, which enhances performance for numerous devices. Furthermore, since the deposited tungsten infiltrates under adhered silicon parts and the volume of W deposited is less than the amount of Si consumed, it appears to be possible to release adhered parts that are contacted over small areas such as dimples. The wear resistance of tungsten coated parts has been shown …
Date:
March 1, 2000
Creator:
Mani, Seethambal S.; Fleming, James G.; Walraven, Jeremy A.; Sniegowski, Jeffry J.; De Boer, Maarten P.; Irwin, Lloyd W. et al.
Object Type:
Article
System:
The UNT Digital Library
Effects of air infiltration on the effective thermal conductivity of internal fiberglass insulation and on the delivery of thermal capacity via ducts
None
Date:
March 1, 2000
Creator:
Levinson, Ronnen; Woody, Delp Wm.; Dickerhoff, Darryl & Modera, Mark
Object Type:
Report
System:
The UNT Digital Library
Effects of Fishing Activities on Benthic Habitat Proposed Research Plan for the Alaska Region
This report summarizes a research plan which focuses on the effects of fishing activities on benthic habitats in Alaska.
Date:
March 2000
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Electrokinetic pumps and actuators
Flow and ionic transport in porous media are central to electrokinetic pumping as well as to a host of other microfluidic devices. Electrokinetic pumping provides the ability to create high pressures (to over 10,000 psi) and high flow rates (over 1 mL/min) with a device having no moving parts and all liquid seals. The electrokinetic pump (EKP) is ideally suited for applications ranging from a high pressure integrated pump for chip-scale HPLC to a high flow rate integrated pump for forced liquid convection cooling of high-power electronics. Relations for flow rate and current fluxes in porous media are derived that provide a basis for analysis of complex microfluidic systems as well as for optimization of electrokinetic pumps.
Date:
March 1, 2000
Creator:
Paul, Phillip M.
Object Type:
Report
System:
The UNT Digital Library
Energetic Proton Generation in Ultra-Intense Laser-Solid Interactions
An explanation for the energetic ions observed in the PetaWatt experiments is presented. In solid target experiments with focused intensities exceeding 10{sup 20} W/cm{sup 2}, high-energy electron generation, hard bremsstrahlung, and energetic protons have been observed on the backside of the target. In this report, we attempt to explain the physical process present that will explain the presence of these energetic protons, as well as explain the number, energy, and angular spread of the protons observed in experiment. In particular, we hypothesize that hot electrons produced on the front of the target are sent through to the back off the target, where they ionize the hydrogen layer there. These ions are then accelerated by the hot electron cloud, to tens of MeV energies in distances of order tens of microns, whereupon they end up being detected in the radiographic and spectrographic detectors.
Date:
March 1, 2000
Creator:
Wilks, S. C.; Langdon, A. B.; Cowan, T. E.; Roth, M.; Singh, M.; Hatchett, S. et al.
Object Type:
Report
System:
The UNT Digital Library
Energy Savings Calculations for Heat Island Reduction Strategies in Baton Rouge, Sacramento and Salt Lake City
In 1997, the US Environmental Protection Agency (EPA) established the ''Heat Island Reduction Initiative'', to quantify the potential benefits of Heat Island Reduction (HIR) strategies (i.e., shade trees, reflective roofs, reflective pavements and urban vegetation) to reduce cooling energy use in buildings, lower the ambient air temperature and improve urban air quality in cities, and reduce CO2 emissions from power plants. Under this initiative, the Urban Heat Island Pilot Project (UHIPP) was created with the objective to investigate the potential of HIR strategies in residential and commercial buildings in three initial UHIPP cities: Baton Rouge, Sacramento and Salt Lake City. This paper summarizes our efforts to calculate the annual energy savings, peak power avoidance and annual C02 reduction of HIR strategies in the three initial cities. In this analysis, we focused on three building types that offer most savings potential: single-family residence, office and retail store. Each building type was characterized in detail by old or new construction and with a gas furnace or an electric heat pump. We defined prototypical building characteristics for each building type and simulated the impact of HIR strategies on building cooling and heating energy use and peak power demand using the DOE-2.IE model. Our …
Date:
March 1, 2000
Creator:
Konopacki, S. & Akbari, H.
Object Type:
Report
System:
The UNT Digital Library
Engineering a new material for hot gas cleanup
The engineering development of a promising sorbent for desulfurizing hot coal gas was initiated and preliminary results are presented. The sorbent is calcium-based and is designed to be regenerated and reused repeatedly. It is prepared by pelletizing powdered limestone in a rotating drum pelletizer followed by the application of a coating which becomes a strong, porous shell upon further treatment. The resulting spherical pellets combine the high reactivity of lime with the strength of an inert protective shell. Preliminary work indicates that a satisfactory shell material is comprised of a mixture of ultrafine alumina powder, somewhat coarser alumina particles, and pulverized limestone which upon heating to 1,373 K (1,100 C) becomes a coherent solid through the mechanism of particle sintering. Several batches of core-in-shell pellets were prepared and tested with encouraging results.
Date:
March 1, 2000
Creator:
Wheelock, T. D.; Doraiswamy, L. K. & Constant, K.
Object Type:
Report
System:
The UNT Digital Library
Environmental Assessment and Finding of No Significant Impact: The Nevada Test Site Development Corporations's Desert Rock Sky Park at the Nevada Test Site
The United States Department of Energy has prepared an Environmental Assessment (DOE/EA-1300) (EA) which analyzes the potential environmental effects of developing operating and maintaining a commercial/industrial park in Area 22 of the Nevada Test Site, between Mercury Camp and U.S. Highway 95 and east of Desert Rock Airport. The EA evaluates the potential impacts of infrastructure improvements necessary to support fill build out of the 512-acre Desert Rock Sky Park. Two alternative actions were evaluated: (1) Develop, operate and maintain a commercial/industrial park in Area 22 of the Nevada Test Site, and (2) taking no action. The purpose and need for the commercial industrial park are addressed in Section 1.0 of the EA. A detailed description of the proposed action and alternatives is in section 2.0. Section 3.0 describes the affected environment. Section 4.0 the environmental consequences of the proposed action and alternative. Cumulative effects are addressed in Section 5.0. Mitigation measures are addressed in Section 6.0. The Department of Energy determined that the proposed action of developing, operating and maintaining a commercial/industrial park in Area 22 of the Nevada Test Site would best meet the needs of the agency.
Date:
March 1, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library