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Office of Scientific & Technical Information Technical Reports
5,432
Congressional Research Service Reports
170
Texas State Publications
64
Government Accountability Office Reports
40
Technical Report Archive and Image Library
25
Office of Technology Assessment
21
Texas State Auditor's Office: Reports
14
D. Jack Davis Art Education Collection
10
End of Term Publications
2
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Data Summary of Municipal Solid Waste Management Alternatives
23
Winter Fuels Report
17
Argonne National Laboratory Reports
16
Texas Motor Vehicle Traffic Accident Summaries
11
Fiscal Year 1999
10
Texas Department of Transportation Contract Reports
10
Fiscal Year 1996
9
San Antonio Monthly Reports
9
Texas Real Estate Center Trends
9
San Antonio Monthly Permit Report
8
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5,784 Matching Results
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Bubbleless gas transfer technology for the in situ remediation of chlorinated hydrocarbons
The primary objective of this project is to demonstrate the ability of hydrogen to supply reducing equivalents for the reductive dehalogenation of perchloroethylene (PCE). This objective will be accomplished by two types of activities. First, laboratory experiments will compare the kinetics of hydrogen-mediated dehalogenation with natural routes of loss (hydrolysis and natural attenuation). Secondly, bench-scale column experiments will be performed to demonstrate hydrogen-mediated reductive dehalogenation in aquifer sediments.
Date:
October 31, 1999
Creator:
Gallagher, J.R. & Kurz, M.D.
System:
The UNT Digital Library
The Federal Energy Technology Center annual site environmental report for calendar year 1998
A comprehensive Directives Program aimed at environmental, safety, and health requirements and risks was initiated in 1997 and will be completed in late 1999 or early 2000. The primary objective of the program is to identify or develop a set of standards that, when implemented, provides reasonable assurance that the health and safety of the workers, public, and the environment will be protected during the performance of the work. In conjunction with the Directives Program, the use of the voluntary environmental management system, ISO 14000, was evaluated. This includes the only environmental management standard to which an entity can be registered. Plans are to consider the specifications and guidance from this standard in the identification of an effective environmental management system for the merged FETC sites. A performance measurement system continued to be maintained during 1998 to assist in evaluating how effectively activities at FETC meet mission-critical goals and how well missions and strategies are connected in the DOE strategic plan. This system also provides data to assist in gauging performance against the DOE critical success factors, that is, performance against technical objectives. Various environmental milestones can be tracked to completion, thus giving the FETC measures by which to gauge …
Date:
October 31, 1999
Creator:
unknown
System:
The UNT Digital Library
HEMISPHERIC CENTER FOR ENVIRONMENTAL TECHNOLOGY
The Deactivation and Decommissioning (D&D) Technology Assessment Program (TAP) was developed to provide detailed, comparable data for environmental technologies and to disseminate this data to D&D professionals in a manner that will facilitate the review and selection of technologies to perform decontamination and decommissioning. The objectives for this project include the following: Determine technology needs through review of the Site Technology Coordination Group (STCG) information and other applicable websites and needs databases; Perform a detailed review of industries that perform similar activities as those required in D&D operations to identify additional technologies; Define the technology assessment program for characterization and waste management problem sets; Define the data management program for characterization, dismantlement, and waste management problem sets; Evaluate baseline and innovative technologies under standard test conditions at Florida International University's Hemispheric Center for Environmental Technology (FIU-HCET) and other locations and collect data in the areas of performance, cost, health and safety, operations and maintenance, and primary and secondary waste generation; Continue to locate, verify, and incorporate technology performance data from other sources into the multimedia information system; and Develop the conceptual design for a dismantlement technology decision analysis tool for dismantlement technologies.
Date:
October 31, 1999
Creator:
Ebadian, M.A.
System:
The UNT Digital Library
High Temperature Refractory to be Marketed Under the Name G-5. Trilliam Thermo Technologies Grant DE-FG36-99GO10396 Summary of Project Status as of 10/31/99
This paper describes the technical progress for the period, with ongoing activities and discusses the actions taken to meet the project deadlines. The technical progress is: (1) conducted test with Steel Industry; (2) Braune Intertech completed four tests requested by Steel and Petroleum Industries; (3) Beta Test in progress in commercial Kiln, a final report on this test will be available by the end of the year; (4) Ordered new high temperature test blocks and electrodes; (5) Made slight formula modifications which appear to greatly increase wear and strength characteristics; and (6) Establishing protocols and complete advanced laboratory testing of revised formula of G-5 Initial test results should be available for the December report.
Date:
October 31, 1999
Creator:
unknown
System:
The UNT Digital Library
International Power Institute. Quarterly report for the period July 1 - September 30, 1999
Ventures into Central American and Africa are sketched.
Date:
October 31, 1999
Creator:
Coles, Julius E.
System:
The UNT Digital Library
LLNL heart valve condition classification project anechoic testing results at the TRANSDEC evaluation facility
This report first briefly outlines the procedures and support/activation fixture developed at LLNL to perform the heart valve tests in an anechoic-like tank at the US Navy Transducer Evaluation Facility (TransDec) located in San Diego, CA. Next they discuss the basic experiments performed and the corresponding experimental plan employed to gather meaningful data systematically. The signal processing required to extract the desired information is briefly developed along with some of the data. Finally, they show the results of the individual runs for each valve, point out any of the meaningful features and summaries.
Date:
October 31, 1999
Creator:
Candy, J V
System:
The UNT Digital Library
Miniature, inexpensive, amperometric oxygen sensor. Semiannual report for the period July - September 1999
None
Date:
October 31, 1999
Creator:
Clark, C. Fred, Jr.
System:
The UNT Digital Library
Molecular-Level Processes Governing the Interaction of Contaminants with Iron and Manganese Oxides - Final Report
Many of the inorganic and organic contaminants present in sediments at DOE sites can be altered or destroyed by reduction and oxidation (redox) reactions occurring at mineral surfaces. A fundamental understanding of such redox processes provided by molecular-level studies on structurally and compositionally well-defined mineral surfaces will lead to: (i) improved models of contaminant fate and transport in geochemical systems, and (ii) optimized manipulation of these processes for remediation purposes. To contribute to this understanding, we will study, both experimentally and theoretically, redox processes involving three important contaminants - chromate ion, carbon tetrachloride, and trichloroethene TCE, on the following iron and manganese oxides - hematite, magnetite, maghemite, and pyrolusite. These oxides and their hydroxylated analogs commonly occur as coatings on minerals or as interfaces in the subsurface environment. Single-crystal surfaces of these oxides will be synthesized in carefully controlled fashion by molecular beam epitaxy. These surfaces, as well as high surface are powdered samples of these oxides, will be used in spectroscopic and kinetic experiments in both aqueous and gas phases. Our goal is to identify products and to determine the kinetics and mechanisms of surface-catalyzed redox reaction of Cr(VI) and CR(III), and the reductive dechlorination of carbon tetrachloride and …
Date:
October 31, 1999
Creator:
Brown Jr., G. E. & Chambers, S. A.
System:
The UNT Digital Library
Studies in combustion and explosion
The objective of the proposed research is to investigate the influence of various aerodynamical, diffusive-thermal, radiative and reaction-rate factors on certain fundamental phenomena concerning combustion and explosion of gaseous premixtures. Different modeling techniques will be employed to reduce the study of pertinent physical systems to simple approximate problems tractable either analytically or numerically. Specifically the authors plan to study: (1) fluid dynamical aspects of flame anchoring by solid bodies; (2) fluid dynamical aspects of thermal explosion and fire flashover; (3) fluid dynamical aspects of fuel leakage in near-limit-flames; (4) reduced models for gaseous detonation.
Date:
October 31, 1999
Creator:
Sivashinsky, Gregory I.
System:
The UNT Digital Library
TECHNOLOGY TRANSFER TO U.S. INDEPENDENT OIL AND NATURAL GAS PRODUCERS
During FY99, the Petroleum Technology Transfer Council (PTTC) continued pursuing its mission of helping U.S. independent oil and gas producers make timely, informed technology decisions. PTTC's national organization has active grassroots programs that connect with independents through its 10 Regional Lead Organizations (RLOs). These activities--including technology workshops, resource centers, websites, newsletters, and other outreach efforts--are guided by regional Producer Advisory Groups (PAGs). The role of the national headquarters (HQ) staff includes planning and managing the PTTC program, conducting nation-wide technology transfer activities, and implementing a comprehensive communications effort. This technical progress report summarizes PTTC's accomplishments during FY99, which lay the groundwork for further growth in the future.
Date:
October 31, 1999
Creator:
unknown
System:
The UNT Digital Library
Final Report: Design & Evaluation of Energy Efficient Modular Classroom Structures Phase II / Volume I-VII, January 17, 1995 - October 30, 1999
We are developing innovations to enable modular builders to improve the energy performance of their classrooms with no increase in first cost. The Modern Building Systems' (MBS) classroom building conforms to the stringent Oregon energy code, and at $18/ft{sup 2} ($1.67/m{sup 2}) (FOB the factory) it is at the low end of the cost range for modular classrooms. We have investigated daylighting, cross-ventilation, solar preheat of ventilation air, air-to-air heat exchanger, electric lighting controls, and down-sizing HVAC systems as strategies to improve energy performance. We were able to improve energy performance with no increase in first cost in all climates examined. Two papers and a full report on Phase I of this study are available. The work described in this report is from the second phase of the project. In the first phase we redesigned the basic modular classroom to incorporate energy strategies including daylighting, cross-ventilation, solar preheating of ventilation air, and insulation. We also explored thermal mass but determined that it was not a cost-effective strategy in the five climates we examined. Energy savings ranged from 6% to 49% with an average of 23%. Paybacks ranged from 1.3 years to 23.8 years, an average of 12.1 years. In Phase …
Date:
October 30, 1999
Creator:
unknown
System:
The UNT Digital Library
Full Scale Regenerable HEPA Filter System Design
None
Date:
October 30, 1999
Creator:
Ramons, Gil
System:
The UNT Digital Library
NIH Clinical Trials: Various Factors Affect Patient Participation
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed patient access to clinical trials sponsored by the National Institutes of Health (NIH), focusing on: (1) how health insurers' coverage policies and practices affect patient participation in clinical trials; (2) researchers' experience in enrolling patients for trials sponsored by the National Cancer Institute (NCI) and factors that may explain this experience; and (3) whether NIH has evidence of recent difficulties in enrolling patients in clinical trials."
Date:
October 30, 1999
Creator:
United States. General Accounting Office.
System:
The UNT Digital Library
SIMPLE ONE-DIMENSIONAL TRANSPORT CODE FOR MAGNETIZED TARGET FUSION
A one-dimensional (in space) time-dependent simulation code is development to study the transport of energy and particles in a field reversed configuration (FRC) plasma that is undergoing radial contraction. This contraction is due to an imploding metallic liner, which is treated through a boundary condition.
Date:
October 30, 1999
Creator:
MIT, STEFANO MIGLUIOLO -
System:
The UNT Digital Library
Technical Progress Report
During the past quartile (two month period) most attention has been concentrated on the problem of definition critical temperature at which ''wet'' corrosion first became operable. It has been shown that, in principle, ''wet'' corrosion processes can not be ignored for Yucca Mountain, even for initial times, when the temperature of the surface of containers is well above the boiling temperature of water for the prevailing conditions. This is because the surfaces are covered by highly hydrophilic oxides (e.g. Fe{sub 2}O{sub 3}, NiO, Cr{sub 2}O{sub 3}) that will hydrate to the form of corresponding hydroxides, which are proton conductors, at least when in the ''wet'' condition. Because proton conduction and the presence of ''bound'' water are all that are required for the external environment to support metallic corrosion in either its general or localized form. Thus, the temperature of dehydration of the hydroxide, e.g. M(OH){sub 2} {yields} MO + H{sub 2}O(g), is a better criterion for the upper temperature limit for ''wet'' corrosion than is the boiling temperature of ''bulk'' water. During this first task, we have reviewed the existing thermodynamic data base for the dehydration of metal hydroxides and analytical expressions have been developed that allow the upper temperature …
Date:
October 30, 1999
Creator:
Engelhardt, G.R. & MacDonald, D.D.
System:
The UNT Digital Library
Thermal energy storage for the small terminal air conditioning unit (Ice Bear). Quarterly report for the period July - September 1999
None
Date:
October 30, 1999
Creator:
McRell, Michael
System:
The UNT Digital Library
Advanced Fingerprint Analysis Project Fingerprint Constituents
The work described in this report was focused on generating fundamental data on fingerprint components which will be used to develop advanced forensic techniques to enhance fluorescent detection, and visualization of latent fingerprints. Chemical components of sweat gland secretions are well documented in the medical literature and many chemical techniques are available to develop latent prints, but there have been no systematic forensic studies of fingerprint sweat components or of the chemical and physical changes these substances undergo over time.
Date:
October 29, 1999
Creator:
Mong, GM; Petersen, CE & Clauss, TRW
System:
The UNT Digital Library
The Application of Adaptive Sampling and Analysis Program (ASAP) Techniques to NORM Sites
The results from the Michigan demonstration establish that this type of approach can be very effective for NORM sites. The advantages include (1) greatly reduced per sample analytical costs; (2) a reduced reliance on soil sampling and ex situ gamma spectroscopy analyses; (3) the ability to combine characterization with remediation activities in one fieldwork cycle; (4) improved documentation; and (5) ultimately better remediation, as measured by greater precision in delineating soils that are not in compliance with requirements from soils that are in compliance. In addition, the demonstration showed that the use of real-time technologies, such as the RadInSoil, can facilitate the implementation of a Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM)-based final status survey program
Date:
October 29, 1999
Creator:
Johnson, Robert; Smith, Karen P. & Quinn, John
System:
The UNT Digital Library
BIOMASS REBURNING - MODELING/ENGINEERING STUDIES
This project is designed to develop engineering and modeling tools for a family of NO{sub x}control technologies utilizing biomass as a reburning fuel. During the eighth reporting period (July 1--September 26, 1999), Antares Group Inc, under contract to Niagara Mohawk Power Corporation, evaluated the economic feasibility of biomass reburning options for Dunkirk Station. This report includes summary of the findings; complete information will be submitted in the next Quarterly Report.
Date:
October 29, 1999
Creator:
Zamansky, Vladimir & Lindsey, Chris
System:
The UNT Digital Library
Combating Terrorism: Chemical and Biological Medical Supplies Are Poorly Managed
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the federal government's management of chemical and biological medical supplies, focusing on the: (1) accuracy and currency of the inventory tracking systems for federal medical stockpiles that would be used to treat the civilian population following a chemical or biological terrorist attack; and (2) internal controls in place to manage the stockpiles."
Date:
October 29, 1999
Creator:
United States. General Accounting Office.
System:
The UNT Digital Library
Computation of Confidence Limits for Linear Functions of the Normal Mean and Variance
If a known transformation of a random variable X is normally distributed with mean {mu} and variance {sigma}{sup 2}, then the mean, variance, and any other distributional property of X can be expressed in terms of {mu} and {sigma}{sup 2}. For example, if X is lognormally distributed, i.e., X {approx} {Lambda}({mu}, {sigma}{sup 2}) or (equivalently) Y = log(X) {approx} N({mu}, {sigma}{sup 2}), then the expected value, variance, median, and mode of X are, respectively, E(X) = exp({mu} + {sigma}{sup 2}/2), var (X) = exp(2{mu} + {sigma}{sup 2})(exp({sigma}{sup 2}) - 1), med(X) = exp({mu}), and mode(X) = exp({mu} - {sigma}{sup 2}). Exact and optimal (uniformly most accurate unbiased) confidence limit procedures have been developed for linear functions of {mu} and {sigma}{sup 2} (Land, 1971, 1973) and, therefore, because confidence limits for a parameter are invariant under smooth, monotone transformations of that parameter, for the mean and mode of a lognormal distribution. In fact, the lognormal distribution is the only one whose mean can be expressed as a function of a non-trivial linear combination of {mu} and {sigma}{sup 2} (Land, 1971), but other functions, including those arising in connection with other normalizing transformations, can be approximated locally by linear functions for which …
Date:
October 29, 1999
Creator:
Lyon, B.F.
System:
The UNT Digital Library
Contract Management: Pilot Program Needed to Improve DOD Identification of Warranty Claims
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO provided information on the Department of Defense's (DOD) plans to develop a pilot program to use commercial sources to improve the collection of DOD claims under aircraft engine warranties, focusing on the: (1) benefits obtained by some private sector users of aircraft engine warranty services; and (2) efforts DOD has made the evaluate the feasibility of establishing a pilot program."
Date:
October 29, 1999
Creator:
United States. General Accounting Office.
System:
The UNT Digital Library
DC Courts: Improvements Needed in Accounting for Escrow and Other Funds
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the District of Columbia (DC) Courts' management of its escrow and other bank accounts, focusing on whether DC Courts: (1) properly reconciled its bank accounts; (2) had adequate controls over fines and fees collected; and (3) had authority to retain amounts deposited into the Crime Victims Fund account."
Date:
October 29, 1999
Creator:
United States. General Accounting Office.
System:
The UNT Digital Library
Financial Management: Increased Attention Needed to Prevent Billions in Improper Payments
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on improper payments in light of the projected future growth of federal expenditures, focusing on the: (1) amounts reported by agencies as improper payments in their fiscal year (FY) 1998 financial statements prepared pursuant to the Chief Financial Officers (FO) Act of 1990; (2) types of federal programs at risk of disbursing improper payments; (3) reported causes of improper payments across the federal government; and (4) extent to which agencies are addressing improper payments in their performance plans under the Government Performance and Results Act of 1993."
Date:
October 29, 1999
Creator:
United States. General Accounting Office.
System:
The UNT Digital Library