Partner
UNT Libraries Government Documents Department
216
Oklahoma Historical Society
44
UNT Libraries Special Collections
25
National Museum of the Pacific War/Admiral Nimitz Foundation
17
Sterling Municipal Library
12
Carl Albert Congressional Research and Studies Center
6
UNT Libraries
6
UNT Music Library
6
Alvin Community College
5
Dallas Area Rapid Transit (DART)
4
43 More
Collection
Office of Scientific & Technical Information Technical Reports
141
Texas Digital Newspaper Program
77
Oklahoma Digital Newspaper Program
52
Tocker Foundation Grant
41
Congressional Research Service Reports
35
Government Accountability Office Reports
33
KXAS-NBC 5 News Collection
19
National Museum of the Pacific War Oral History Collection
17
National Museum of the Pacific War Digital Archive
17
The Baytown Sun
12
75 More
Degree Department
Country
States
Year
Month
Day
Language
Decontamination of Dissolved Salt Solution from Tank 19F Using Duolite CS-100 and Amberlite IRC-718 Resins
In this study actual Savannah River Plant liquid supernate solutions were processed to refine and verify these synthetic solution studies. The main objectives were: (1) confirm high decontamination factors (DFs) for cesium-137 and strontium-90 using Duolite CS-100 and Amberlite IRC-718 ion exchange resins, (2) obtain DFs for other minor radioactive isotopes such as plutonium, technetium and ruthenium, (3) provide ion exchange elutriant containing cesium-137, strontium-90 and other radioactive isotopes for ''hot'' melter studies, (4) determine the quality of the decontaminated salt solution, and (5) provide actual decontaminated salt solution for saltcrete development programs.
Date:
October 17, 2001
Creator:
Lee, L.M.
Object Type:
Report
System:
The UNT Digital Library
Defense Cleanup and Environmental Programs: Authorization and Appropriations for FY2001
The Department of Defense operates six environmental programs: cleanup of past contamination at military facilities, acceleration of cleanup at military bases designated for closure, compliance with environmental laws and regulations that apply to ongoing military operations, pollution prevention, natural resource conservation, and environmental technology. In addition to these activities, the Department of Energy is responsible for managing defense nuclear waste and remediating contaminated sites. This report discusses the federal laws that established these programs, describes their scope and purpose, provides a history of appropriations, indicates the President’s budget request for FY2001, examines authorization and appropriations legislation for FY2001, and discusses other relevant legislation considered in the 106th Congress.
Date:
January 17, 2001
Creator:
Bearden, David M.
Object Type:
Report
System:
The UNT Digital Library
Defense Health Care: Lessons Learned from TRICARE Contracts and Implications for the Future
Testimony issued by the General Accounting Office with an abstract that begins "This testimony discusses lessons learned from the Department of Defense's (DOD) TRICARE contracts and their implications for the future. TRICARE's successes and maturity reflect the ability of the DOD and its contractors to work within the current contract structure. However, it has not been easy, and there are important lessons from current contract shortcomings that need to be addressed in designing future TRICARE contracts. Most, including DOD, believe that the current contracts are too large, complex, and prescriptive in nature, limiting innovation and competition. Also, numerous adjustments to these contracts have created an unstable program, and program costs have been difficult to predict, contributing to annual funding shortfalls. Additionally, financial incentives, accountability, and data quality need to be strengthened to achieve greater efficiencies. To address these weaknesses, DOD redesigned its solicitation for the next round of TRICARE contracts; however, the initial issuance was withdrawn because of internal concerns and reservations about its costs and specifications. DOD is now reassessing how to structure the TRICARE contracts and is considering the views and recommendations of the Defense Medical Oversight Committee, a group formed to oversee TRICARE."
Date:
May 17, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Defense Logistics: Information on Apache Helicopter Support and Readiness
A letter report issued by the General Accounting Office with an abstract that begins "This report examines selected logistics, funding, and readiness issues pertaining to the AH-64 Apache helicopter program. GAO found that the Apache's identified sustainment systems technical support requirements have not been fully met in fiscal years 2000 and 2001. In fiscal year 2000, funding fell short of the $28.6 million needed for Apache sustainment support. The military projects that it will be able to meet only 56 percent of the Apache's sustainment support requirements for fiscal years 2001-2003. Furthermore, because the Apache sustainment support projects must compete with other weapon systems for limited funding, some Apache projects have been delayed or limited in scope. GAO also found that the procurement of parts for the Apache is hampered by an outdated inventory system. The technical manuals used by field and depot personnel lack critical technical drawings and specifications, and the Army must resort to other methods, such as reverse engineering, to compensate for the lack of data. Finally, the Army has several unfunded requirements for Apache component upgrades for fiscal years 2001 and 2002. GAO found, however, that these issues have not prevented the Apache fleet from meeting …
Date:
July 17, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Spectrum Management: New Procedures Could Help Reduce Interference Problems
A letter report issued by the General Accounting Office with an abstract that begins "The Department of Defense (DOD) has become increasingly aware that the use of more commercial and military electronic systems aboard ships, aircraft, and vehicles can cause unintended electromagnetic interactions among systems and harm operations. Such unintended interactions, called electromagnetic environmental effects, have already undermined mission effectiveness on many occasions. The new procurement procedures established by DOD are reasonable and could help prevent problems arising from radio frequency interference. The impact of these new procedures cannot be evaluated, however, until DOD has had a chance to apply its revised guidance to systems as they go through each acquisition decision milestone. DOD would then be able to demonstrate that the new procedures have (1) resulted in the review of relevant documents at each decision milestone to identify potential frequency problems, (2) prevented interference problems, and (3) improved the acquisition process. No DOD system had undergone the new procedures for all decision milestones at the time of GAO's review. The first of three pilot programs using the new acquisition guidance should be completed by January 2002 according to DOD officials. Consequently, GAO could not assess the programs' effectiveness."
Date:
May 17, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Delisting Petition for Vitrified M-Area Plating Line Wastes
The Savannah River Site Operations Office of the U.S. Department of Energy is submitting this Delisting Petition to the U.S. Environmental Protection Agency, Region IV. This petition seeks exclusion of certain solid wastes generated at the Savannah River Site near Aiken, South Carolina from the list of Resource Conservation and Recovery Act hazardous wastes contained in 40 CFR 261.24 and 40 CFR 261.31.
Date:
April 17, 2001
Creator:
Pickett, J.B.
Object Type:
Report
System:
The UNT Digital Library
Design Considerations of Fast Kicker Systems for High Intensity Proton Accelerators.
In this paper, we discuss the specific issues related to the design of the Fast Kicker Systems for high intensity proton accelerators. To address these issues in the preliminary design stage can be critical since the fast kicker systems affect the machine lattice structure and overall design parameters. Main topics include system architecture, design strategy, beam current coupling, grounding, end user cost vs. system cost, reliability, redundancy and flexibility. Operating experience with the Alternating Gradient Synchrotron injection and extraction kicker systems at Brookhaven National Laboratory and their future upgrade is presented. Additionally, new conceptual designs of the extraction kicker for the Spallation Neutron Source at Oak Ridge and the Advanced Hydrotest Facility at Los Alamos are discussed.
Date:
June 17, 2001
Creator:
Zhang, W.; Sandberg, J.; Parsons, W. M.; Walstrom, P.; Murray, M. M.; Cook, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Design of Storage Systems Using Multiple Storage Technologies in Renewable Systems
Energy systems that rely on intermittent renewable sources typically use storage devices to improve their reliability. Large scale systems can be expected to cycle the storage capacity on cycles ranging from a day to a year. It can be cost effective to use several storage technologies as a system. A very efficient technology can be used for the smaller daily cycles even if it has a high capital cost. Conversely, a technology having a low efficiency but a low capital cost can be used for the larger longer period cycles. This paper presents a method for determining the optimal capacities for a set of storage technologies. It is analogous to techniques used in electric generation capacity planning that use a load duration curve along with the capital and operating costs of various generations technologies. Here we derive a function that describes throughput as a function of capacity and use it along with the capital and operating costs (including efficiencies) of the storage technologies to derive the optimal capacities.
Date:
January 17, 2001
Creator:
Lamont, A.
Object Type:
Report
System:
The UNT Digital Library
DESIGN OF THE SEALEVEL SUSPENDED SOLIDS CONCENTRATION MONITORING SYSTEM
The SEAlevel project between Science & Engineering Associates, Inc. (SEA) and the National Energy Technology Laboratory (NETL) in Morgantown, WV (contract DE-AC21-96MC33126) began in direct response to a need expressed by personnel involved with monitoring fluid levels in underground storage tanks at the Hanford Tank Farms. Hanford expressed a desire for an automated monitoring system that could be installed into tanks through liquid observation wells (LOWs). The LOWs are pipes that run from the surface above the tank to the bottom of the tank. The end of the LOW pipe in the tank waste is sealed. Therefore, the LOW provides a clean conduit through which sensors and monitors can be lowered into the tanks. When the SEAlevel project first began, it was understood that the LOWs would be of steel construction, because several existing LOWs at the time were steel pipes and the plans for all future LOW installations were to be with steel pipes. Based on this assumption the SEAlevel monitoring system was to be made using an array of acoustic sensors. However, during the course of the project it was learned that many existing LOWs are of fiberglass construction and that it was the desire of the Tanks …
Date:
September 17, 2001
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Design Validation Test Stand Guide Inserts for the Spallation Neutron Source
None
Date:
January 17, 2001
Creator:
Williams, D. M.
Object Type:
Article
System:
The UNT Digital Library
Detailed Chemical Kinetic Reaction Mechanisms for Autoignition of Isomers of Heptane Under Rapid Compression
Detailed chemical kinetic reaction mechanisms are developed for combustion of all nine isomers of heptane (C{sub 7}H{sub 16}), and these mechanisms are tested by simulating autoignition of each isomer under rapid compression machine conditions. The reaction mechanisms focus on the manner in which the molecular structure of each isomer determines the rates and product distributions of possible classes of reactions. The reaction pathways emphasize the importance of alkylperoxy radical isomerizations and addition reactions of molecular oxygen to alkyl and hydroperoxyalkyl radicals. A new reaction group has been added to past models, in which hydroperoxyalkyl radicals that originated with abstraction of an H atom from a tertiary site in the parent heptane molecule are assigned new reaction sequences involving additional internal H atom abstractions not previously allowed. This process accelerates autoignition in fuels with tertiary C-H bonds in the parent fuel. In addition, the rates of hydroperoxyalkylperoxy radical isomerization reactions have all been reduced so that they are now equal to rates of analogous alkylperoxy radical isomerizations, significantly improving agreement between computed and experimental ignition delay times in the rapid compression machine. Computed ignition delay times agree well with experimental results in the few cases where experiments have been carried out …
Date:
December 17, 2001
Creator:
Westbrook, C K; Pitz, W J; Boercker, J E; Curran, H J; Griffiths, J F; Mohamed, C et al.
Object Type:
Article
System:
The UNT Digital Library
Determination of BWR Spent Nuclear Fuel Assembly Effective Thermal Conductivity
The purpose of this calculation is to provide an effective thermal conductivity for use in predicting peak cladding temperatures in boiling water reactor (BWR) fuel assemblies with 7x7,8x8, and 9x9 rod arrays. The first objective of this calculation is to describe the development and application of a finite element representation that predicts peak spent nuclear fuel temperatures for BWR assemblies. The second objective is to use the discrete representation to develop a basis for determining an effective thermal conductivity (described later) for a BWR assembly with srneared/homogeneous properties and to investigate the thermal behavior of a spent fuel assembly. The scope of this calculation is limited to a steady-state two-dimensional representation of the waste package interior region. This calculation is subject to procedure AP-3.124, Calculations (Ref. 27) and guided by the applicable technical work plan (Ref. 14). While these evaluations were originally developed for the thermal analysis of conceptual waste package designs emplaced in the potential repository at Yucca Mountain, the methodology applies to storage and transportation thermal analyses as well. Note that the waste package sketch in Attachment V depicts a preliminary design, and should not be interpreted otherwise.
Date:
October 17, 2001
Creator:
Hinds, Matthew D.
Object Type:
Report
System:
The UNT Digital Library
DEVELOPMENT OF A VALIDATED MODEL FOR USE IN MINIMIZING NOx EMISSIONS AND MAXIMIZING CARBON UTILIZATION WHEN CO-FIRING BIOMASS WITH COAL
This is the third Quarterly Technical Report for DOE Cooperative Agreement No. DE-FC26-00NT40895. A statement of the project objectives is included in the Introduction of this report. Three additional biomass co-firing test burns have been conducted. In the first test (Test 3), up to 20% by weight dry hardwood sawdust and dry switchgrass was injected through the center of the burner. In the second test (Test 4), 100% Pratt seam coal was burned in a repeat of the initial test condition of Test 1, to reconcile irregularities in the data from the first test. In the third test (Test 5), up to 20% by weight dry hardwood sawdust and dry switchgrass was injected through an external pipe directed toward the exit of the burner. Progress has continued in developing a modeling approach to synthesize the reaction time and temperature distributions that will be produced by computational fluid dynamic models of the pilot-scale combustion furnace and the char burnout and chemical reaction kinetics that will predict NOx emissions and unburned carbon levels in the furnace exhaust. Additional results of CFD modeling efforts have been received and Preparations are under way for continued pilot-scale combustion experiments. Finally, a presentation was made at …
Date:
July 17, 2001
Creator:
Felix, Larry G. & Bush, P. Vann
Object Type:
Report
System:
The UNT Digital Library
Development of Improved Oil Field Waste Injection Disposal Techniques
The goals of this DOE sponsored project are to: (1) assemble and analyze a comprehensive database of past waste injection operations; (2) develop improved diagnostic techniques for monitoring fracture growth and formation changes; (3) develop operating guidelines to optimize daily operations and ultimate storage capacity of the target formation; and (4) to test these improved models and guidelines in the field.
Date:
December 17, 2001
Creator:
Inc., Terralog Technologies USA
Object Type:
Report
System:
The UNT Digital Library
Direct electrochemical conversion of carbon anode fuels in molton salt media
We are conducting research into the direct electrochemical conversion of reactive carbons into electricity--with experimental evidence of total efficiencies exceeding 80% of the heat of combustion of carbon. Together with technologies for extraction of reactive carbons from broad based fossil fuels, direct carbon conversion addresses the objectives of DOE's ''21st Century Fuel Cell'' with exceptionally high efficiency (>70% based on standard heat of reaction, {Delta}H{sub std}), as well as broader objectives of managing CO{sub 2} emissions. We are exploring the reactivity of a wide range of carbons derived from diverse sources, including pyrolyzed hydrocarbons, petroleum cokes, purified coals and biochars, and relating their electrochemical reactivity to nano/microstructural characteristics.
Date:
January 17, 2001
Creator:
Cherepy, N; Krueger, R & Cooper, J F
Object Type:
Article
System:
The UNT Digital Library
DOE Safety Metrics Indicator Program (SMIP) Third Quarter FY 2001 Quarterly Report
The Safety Metrics Indicator Program (SMIP) retrieved 69 packaging- or transportation-related occurrences from the Occurrence Reporting and Processing System (ORPS) during the period from April 1 through June 30, 2001. Only those incidents that occur in preparation for transport, during transport, and during unloading of hazardous material are considered as packaging- or transportation-related occurrences. Other incidents with packaging and transportation (P and T) significance but not involving hazardous material (such as vehicle accidents or empty packagings) are not rated to the SMIP criteria, but are archived in the SMIP Subsidiary Database of occurrences, a sub-database of the main SMIP P and T Occurrence Database. Fifty-one of the originally-selected 69 occurrences were appropriate for classification to the SMIP criteria, 26 of which have offsite applicability. Eight of the original 69 reports are archived in a subsidiary database because they either do not involve the transport of hazardous material or they do not involve transport by vehicle, plane, boat, or rail. The others were either deleted because more thorough review revealed that they were not strictly related to P and T or they were canceled by the reporting site and removed from the ORPS. The number and severity of the selected occurrence …
Date:
September 17, 2001
Creator:
Dickerson, Leonard S.
Object Type:
Report
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 11, No. 37, Ed. 1 Thursday, May 17, 2001
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
May 17, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Durability of SRP Waste Glass - Effects of Pressure and Formation of Surface Layers
This report discusses results of an assessment of pressure at anticipated storage temperature on the chemical durability of Savannah River Plant waste glass. Surface interactions were also examined and corrosion mechanisms discussed.
Date:
October 17, 2001
Creator:
Wicks, G. G.
Object Type:
Report
System:
The UNT Digital Library
DWPF Sampling Device Development Test Results and Design Recommendation
This report summarizes the development and testing of a sample device for the DWPF sample cells. The clamp actuated manual Hydraguard valve used in conjunction with the concentric needle fill device is recommended for use in the DWPF. This is based on test results which indicate that this sampler is capable of obtaining samples within five percent of the solids concentration of the process stream at flow rates from 0.5 to 3.5 gpm.
Date:
July 17, 2001
Creator:
Wilds, G.W.
Object Type:
Report
System:
The UNT Digital Library
Dynamic Particle Growth Testing - Phase I Studies
There is clearly a great need to understand the processes of crystallization and solid scale formation that led to the shutdown of 2H evaporator operation at the Savannah River Site (SRS) and could possibly cause similar problems in the future in other evaporators. Waste streams from SRS operations that enter the evaporators generally contain alkaline, sodium nitrate/nitrite-based solutions with various changing concentrations of silicates and aluminates. It has been determined. that the silicates and aluminates served as precursor reactants for forming unwanted minerals during solution evaporation, upon transport, or upon storage. Mineral forms of the Zeolite Linde A group--sodalites and cancrinite--along with gibbsite, have often been identified as contributing to deposit (scale) formation on surfaces of the 2H evaporator as well as to the formation of solid plugs in the gravity drain line and lift line. Meanwhile, solids (amorphous or crystalline minerals) are believed, without direct evidence, to form in the bulk solutions in the evaporator. In addition, the position of deposits in the 2H evaporator suggests that scale formation depends on the interplay of heat and mass transfer, hydrodynamics, and reaction mechanisms and kinetics. The origin of solid scale formation on walls could be due to heterogeneous nucleation and/or …
Date:
May 17, 2001
Creator:
Hu, M.Z-C.
Object Type:
Report
System:
The UNT Digital Library
Dynamic Underground Stripping Post-Treatment Characterization Plan
The A/M-Area of the Savannah River Site is a known area of solvent release to the subsurface. The Solvent Storage Tank Area is an area of documented dense non-aqueous phase liquids (DNAPL) in the subsurface. June 30, 2000 a remediation using the Dynamic Underground Stripping (DUS) treatment technology commenced. This technology injects steam into the subsurface through a series of injection wells located within the treatment zone. The steam is pulled through the subsurface to an extraction well where it is removed. The heating of the subsurface causes the DNAPL present to be volatilized and removed through the extraction well.
Date:
April 17, 2001
Creator:
Vangelas, K.M.
Object Type:
Report
System:
The UNT Digital Library
An e{sup +}e{sup -} collider in the VLHC tunnel.
None
Date:
July 17, 2001
Creator:
Barcikowski, A.; Goeppner, G.; Norem, J.; Rotela, E.; Rusthoven, B.; Sharma, S. et al.
Object Type:
Article
System:
The UNT Digital Library
EARLY ENTRANCE COPRODUCTION PLANT
The overall objective of this project is the three-phase development of an Early Entrance Coproduction Plant (EECP) that produces at least one product from at least two of the following three categories: Electric power (or heat); Fuels; and Chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or some other carbonaceous feedstock, such as petroleum coke. The objective of Phase I was to determine the feasibility and define the concept for the EECP located at a specific site and to develop a Research, Development, and Testing (RD and T) Plan for implementation in Phase II. This objective has now been accomplished. A specific site, Motiva Refinery in Port Arthur, Texas, has been selected as the location best suited for the EECP. The accomplishments of Phase I are discussed in detail in this Phase I Concept Report. A RD and T Plan and a preliminary project financing plan have been developed and are submitted separately from this report.
Date:
May 17, 2001
Creator:
Abughazaleh, John S.; Ahmed, Mushtaq; Anand, Ashok; Anderson, John H.; Benham, Charles; Brent, Fred D. et al.
Object Type:
Report
System:
The UNT Digital Library
Economic Development Administration: Overview and Issues
The Economic Development Administration (EDA), targeted for elimination or major “reinvention” early in the 104th Congress, gained a new lease on life in the waning days of the 105th. Having been kept alive via appropriations bills since its last authorizing legislation expired in 1982, P.L. 105-393 reauthorized the EDA and its programs for 5 years. On October 27, Congress approved a conference agreement recommending $286.7 million for EDAP and $28 million for S&E, for a totalFY2001 appropriation of$411.9 million for EDA. It became part of the Consolidated Appropriations Act (H.R. 4942, P.L. 106-553) signed into law on December 21, 2000.
Date:
January 17, 2001
Creator:
Mulock, Bruce K.
Object Type:
Report
System:
The UNT Digital Library