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Airport-Based Alternative Fuel Vehicle Fleets
An account of alternative fuel vehicle usage and success highlighting three major airports.
Date:
February 28, 2001
Creator:
Howards, S.
Object Type:
Book
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 101, No. 300, Ed. 1 Wednesday, February 28, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, February 28, 2001
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 94, Ed. 1 Wednesday, February 28, 2001
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Characterizing the fabric of the urban environment: A case study of Salt Lake City, Utah
Urban fabric data are needed in order to estimate the impact of light-colored surfaces (roofs and pavements) and urban vegetation (trees, grass, shrubs) on the meteorology and air quality of a city, and to design effective implementation programs. In this report, we discuss the result of a semi-automatic Monte-Carlo statistical approach used to develop data on surface-type distribution and city-fabric makeup (percentage of various surface-types) using aerial color orthophotography. The digital aerial photographs for Salt Lake City covered a total of about 34 km2 (13 mi2). At 0.50-m resolution, there were approximately 1.4 x 108 pixels of data. Four major land-use types were examined: (1) commercial, (2) industrial, (3) educational, and (4) residential. On average, for the areas studied, vegetation covers about 46 percent of the area (ranging 44-51 percent), roofs cover about 21 percent (ranging 15-24 percent), and paved surfaces about 26 percent (ranging 21-28 percent). For the most part, trees shade streets, parking lots, grass, and sidewalks. In most non-residential areas, paved surfaces cover 46-66 percent of the area. In residential areas, on average, paved surfaces cover about 32 percent of the area. Land-use/land-cover (LU/LC) data from the United States Geological Survey were used to extrapolate these results …
Date:
February 28, 2001
Creator:
Akbari, Hashem & Rose, L. Shea
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 106, No. 17, Ed. 1 Wednesday, February 28, 2001
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Collegian (Hurst, Tex.), Vol. 13, No. 18, Ed. 1 Wednesday, February 28, 2001
Weekly student newspaper published in Hurst, Texas and serving the Tarrant County College District that includes school news and information along with advertising.
Date:
February 28, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Daily Journal (Perry, Okla.), Vol. 108, No. 42, Ed. 1 Wednesday, February 28, 2001
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
DART amplía iniciativas para contratos y empleos a minorías
News release concerning a joint commitment between DART and four Dallas chambers of commerce to increase minority participation in DART contracts and hiring.
Date:
February 28, 2001
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
DART expands minority contracting and employment initiatives
News release concerning a joint commitment between DART and four Dallas chambers of commerce to increase minority participation in DART contracts and hiring.
Date:
February 28, 2001
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Data Qualification Report: Flow Meter Survey Data From Borehole UE-25c#3 For Use On The Yucca Mountain Project
This Data Qualification Report uses corroborating data methods according to Attachment 2 of AP-SIII.2Q, Rev. 00, ICN 3, ''Qualification of Unqualified Data and the Documentation of Rationale for Accepted Data'', to qualify flowing interval data from a borehole spinner log. This report was prepared in accordance with Data Qualification Plan DQP-NBS-GS-000005, Rev. 00. These data were collected under the Yucca Mountain Site Characterization Project (YMP) Quality Assurance Requirements and Description (QARD) document but are unqualified because unqualified software was used in data reduction. The unqualified flow log was run in Borehole UE-25c No.3 in 1995. Corroborative evidence is available from independent flow logs run in the same borehole in 1984 by an earlier investigator. This corroborative support is unusually strong because it represents a second measurement of the same data. The corroborating data agree well with the data being qualified and support the adequacy of the data. The unqualified software, the TERRASTATION code by Terrasciences Inc., is widely used and accepted by the technical community for non-project applications. The widespread acceptance of the software further supports the adequacy of the data. In view of the evidence provided by the corroborating data and general acceptance of the software, the Data Qualification …
Date:
February 28, 2001
Creator:
Wilson, C.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Space-Based Infrared System-low at Risk of Missing Initial Deployment Date
A letter report issued by the General Accounting Office with an abstract that begins "The Pentagon considers defenses to counter attacks from ballistic missiles, both long-range strategic and shorter-range theater missiles, to be critical to U.S. national security. The Air Force is developing a new satellite system, called Space-Based Infrared System-low (SBIRS-low) to expand the military's infrared satellite capabilities for supporting ballistic missile defenses. GAO reviewed the Defense Department's (DOD) efforts to acquire SBIRS-low. Specifically, GAO (1) evaluated the cost, schedule, and performance risks of the current acquisition schedule; (2) evaluated the program's technical risks; and (3) determined whether DOD has assessed alternative approaches to SBIRS-low. GAO found that the Air Force's current SBIRS-low acquisition schedule is of high risk of not delivering the system on time or at cost or with expected performance. SBIRS-low has high technical risks because some critical satellite technologies have been judged immature for the current stage of the program. DOD acquisition policy and procedures require that the cost and mission effectiveness of space systems be assessed relative to alternative terrestrial systems. However, the Air Force has not analyzed or identified terrestrial alternatives to the SBIRS-low system because, according to Air Force Space Command officials, …
Date:
February 28, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Drug Control: The Department of State's Contract Award for Its Counternarcotics Aviation Program
Correspondence issued by the General Accounting Office with an abstract that begins "The Department of State adhered to applicable contracting laws and regulations in issuing three interim sole-source contract extensions to DynCorp Aerospace Technology. Although State had developed extensive plans to make a competitive award before DynCorp's existing contract expired, State determined that because of an ever-changing scope of work, it needed to prepare a completely new solicitation incorporating a different statement of work and various program changes. As a result, State could not award a new competitive contract before DynCorp's contract expired. The documentation shows that because of the contractor's magnitude, DynCorp's past experience on the job made it the only qualified contractor able to provide the services without interruption. As required, State publicized each of its decisions to use noncompetitive procedures for the interim contract extensions to allow potential offerors to challenge the decisions, but no firms expressed interest in competing for the awards. In awarding the current contract to DynCorp, State complied with the requirements for making a competitive award and also took discretionary steps to promote increased competition, such as holding a pre-proposal conference with potential offerors. Of the two proposals it received, State determined that …
Date:
February 28, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Electromagnetic Imaging of C02 Sequestration at an Enhanced Oil Recovery Site
Lawrence Livermore National Laboratory (LLNL) is currently involved in a long term study using time-lapse multiple frequency electromagnetic (EM) characterization at a waterflood enhanced oil recovery (EOR) site in California operated by Chevron Heavy Oil Division in Lost Hills, California. The petroleum industry's interest and the successful imaging results from this project suggest that this technique be extended to monitor CO{sub 2} sequestration at an EOR site also operated by Chevron. The impetus for this study is to develop the ability to image subsurface injected CO{sub 2} during EOR processes while simultaneously discriminating between pre-existing petroleum and water deposits. The goals of this study are to combine laboratory and field methods to image a pilot CO{sub 2} sequestration EOR site using the cross-borehole EM technique, improve the inversion process in CO{sub 2} studies by coupling results with petrophysical laboratory measurements, and focus on new gas interpretation techniques. In this study we primarily focus on how joint field and laboratory results can provide information on subsurface CO{sub 2} detection, CO{sub 2} migration tracking, and displacement of petroleum and water over time. This study directly addresses national energy issues in two ways: (1) the development of field and laboratory techniques to improve …
Date:
February 28, 2001
Creator:
Kirkendall, B. & Roberts, J.
Object Type:
Article
System:
The UNT Digital Library
Electromagnetic Imaging of CO2 Sequestration at an Enhanced Oil Recovery Site
Lawrence Livermore National Laboratory (LLNL) is currently involved in a long term study using time-lapse multiple frequency electromagnetic (EM) characterization at a waterflood enhanced oil recovery (EOR) site in California operated by Chevron Heavy Oil Division in Lost Hills, California (Figure 1). The petroleum industry's interest and the successful imaging results from this project suggest that this technique be extended to monitor CO{sub 2} sequestration at an EOR site also operated by Chevron. The impetus for this study is to develop the ability to image subsurface injected CO{sub 2} during EOR processes while simultaneously discriminating between pre-existing petroleum and water deposits. The goals of this study are to combine laboratory and field methods to image a pilot CO{sub 2} sequestration EOR site using the cross-borehole EM technique, improve the inversion process in CO{sub 2} studies by coupling results with petrophysical laboratory measurements, and focus on new gas interpretation techniques. In this study we primarily focus on how joint field and laboratory results can provide information on subsurface CO{sub 2} detection, CO{sub 2} migration tracking, and displacement of petroleum and water over time. This study directly addresses national energy issues in two ways: (1) the development of field and laboratory techniques …
Date:
February 28, 2001
Creator:
Kirkendall, B. & Roberts, J.
Object Type:
Article
System:
The UNT Digital Library
Ensemble: 2001-02-28 - Symphony Orchestra
Access:
Use of this item is restricted to the UNT Community
Ensemble performance at the UNT College of Music Winspear Hall.
Date:
February 28, 2001
Creator:
University of North Texas. Symphony Orchestra.
Object Type:
Sound
System:
The UNT Digital Library
Evaluation of Confining Layer Integrity Beneath the South District Wastewater Treatment Plant, Miami-Dade Water and Sewer Department, Dade County, Florida
A review has been performed of existing information that describes geology, hydrogeology, and geochemistry at the South District Wastewater Treatment Plant, which is operated by the Miami-Dade Water and Sewer Department, in Dade County, Florida. Treated sanitary wastewater is injected into a saline aquifer beneath the plant. Detection of contaminants commonly associated with treated sanitary wastewater in the freshwater aquifer that overlies the saline aquifer has indicated a need for a reevaluation of the ability of the confining layer above the saline aquifer to prevent fluid migration into the overlying freshwater aquifer. Review of the available data shows that the geologic data set is not sufficient to demonstrate that a competent confining layer is present between the saline and freshwater aquifers. The hydrogeologic data also do not indicate that a competent confining layer is present. The geochemical data show that the freshwater aquifer is contaminated with treated wastewater, and the spatial patterns of contamination are consistent with upward migration through localized conduits through the Middle Confining Unit, such as leaking wells or natural features. Recommendations for collection and interpretation of additional site characterization data are provided.
Date:
February 28, 2001
Creator:
Starr, R. C.; Green, T. S. & Hull, L. C.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Gas Reburning and Low-NOx Burners on a Wall-Fired Boiler; a DOE Assessment
The results from the GR-LNB technology demonstrated by EER at Cherokee Station approached, but did not meet, the CCT project's performance objectives. Acceptable unit operability was achieved with both the GR and the LNB components. The gas reburning component of the process appears to be broadly applicable for retrofit NO{sub x} control to most utility boilers and, in particular, to wet-bottom cyclone boilers, which are high NO{sub x} emitters and are difficult to control (LNB technology is not applicable to cyclone boilers). GR-LNB can reduce NO{sub x} to mandated emissions levels under Title IV of the CAAA without significant, adverse boiler impacts. The GR-LNB process may be applicable to boilers significantly larger than the demonstration unit, provided there is adequate dispersion and mixing of injected natural gas. Major results of the demonstration project are summarized as follows: NO{sub x}-emissions reductions averaging 64% were achieved with 12.5% gas heat input in long-term tests on a 158-MWe (net) wall-fired unit. The target reduction level of 70% was achieved only on a short-term basis with higher gas consumption. The thermal performance of coal-fired boilers is not significantly affected by GR-LNB. Convective section steam temperatures can be controlled within acceptable limits. Thermal efficiency is …
Date:
February 28, 2001
Creator:
National Energy Technology Laboratory (U.S.)
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, February 28, 2001
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 28, 2001
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Federal Debt: Debt Management Actions and Future Challenges
A letter report issued by the General Accounting Office with an abstract that begins "This report discusses the Treasury Department's debt management strategies in a period of budget surplus. As the level of debt held by the public has decreased, the Treasury has had to rethink its strategies for best achieving its three goals--having enough cash on hand, minimizing cost over time, and promoting efficient markets. The Treasury has used existing and new debt managing tools in response to the challenges posed by declining debt. In calendar year 2000, the Treasury began two new programs designed to improve market liquidity: regularly reopening existing debt issues rather than creating new issues, and conducting buybacks of about $30 billion in longer-term bonds before they matured, thereby enabling the Treasury to issue more new securities. In addition, higher issuance levels of short-term bills were made possible by eliminating longer-term notes. Capital markets have been adjusting to the reduced supply of Treasury securities. For example, capital market participants have begun using financial instruments other than Treasury securities as pricing tools for transactions. If projected budget surpluses materialize, the current combination of debt auction schedules, issue sizes, and maturities will be unsustainable over the next …
Date:
February 28, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Flow Tones in a Pipeline-Cavity System: Effect of Pipe Asymmetry
Flow tones in a pipeline-cavity system are characterized in terms of unsteady pressure within the cavity and along the pipe. The reference case corresponds to equal lengths of pipe connected to the inlet and outlet ends of the cavity. Varying degrees of asymmetry of this pipe arrangement are investigated. The asymmetry is achieved by an extension of variable length, which is added to the pipe at the cavity outlet. An extension length as small as a few percent of the acoustic wavelength of the resonant mode can yield a substantial reduction in the pressure amplitude of the flow tone. This amplitude decrease occurs in a similar fashion within both the cavity and the pipe resonator, which indicates that it is a global phenomenon. Furthermore, the decrease of pressure amplitude is closely correlated with a decrease of the Q (quality)-factor of the predominant spectral component of pressure. At a sufficiently large value of extension length, however, the overall form of the pressure spectrum recovers to the form that exists at zero length of the extension. Further insight is provided by variation of the inflow velocity at selected values of extension length. Irrespective of its value, both the magnitude and frequency of …
Date:
February 28, 2001
Creator:
Erdem, D.; Rockwell, D.; Oshkai, P.L. & Pollack, M.
Object Type:
Report
System:
The UNT Digital Library
Food Assistance: Performance Measures for Assessing Three WIC Services
A letter report issued by the General Accounting Office with an abstract that begins "GAO examined the performance measures that the Food and Nutrition Service (FNS) uses to assess the nutrition education, breastfeeding promotion and support, and health referral services provided to participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) program. GAO found that FNS has an outcome-based measure for one of the three nutrition services--breastfeeding promotion and support. However, the measure, breastfeeding initiation rate, examines only one of several important aspects of the service's possible impact on WIC participants. In addition, several obstacles have hindered FNS' efforts to develop and implement outcome-based measures for nutrition education and health referral services for the WIC program. These include difficulties in identifying measures that would allow the agency to appropriately link a particular service's activity to a desired outcome and resource constraints affecting FNS' ability to collect data needed to implement a proposed measure."
Date:
February 28, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Four-Dimensional Characterization of Paper Web at the Wet End
This report presents a detailed description of a vision system whose purpose is to detect and to localize the nonuniformities that appear on the paper slurry (wood fiber and water mixture) at the wet end of a paper machine. Specifically, the system is capable of monitoring the paper slurry upon its exit from the headbox and alerting the operators of any event (e.g., streaks) that disrupts the otherwise homogeneous background. Such events are thought to affect crucial product properties such as formation, which if poor, results in thick and thin spots on the sheet and impacts its strength and printability. This report describes the vision system in terms of its hardware modules, as well as the image processing algorithms that it utilizes to perform its function. Basically, the system acquires both intensity and topographic information from the scene and uses texture-based features for the detection, and facet-based descriptors for the localization of the nonuniformities. In addition to being tested in a laboratory environment, a prototype of this system was constructed and deployed to a paper mill, where its performance was evaluated under realistic conditions. Installed on a fourdrinier paper machine, running at 480 m/min and producing linerboard material, the vision …
Date:
February 28, 2001
Creator:
Goddard, JS
Object Type:
Report
System:
The UNT Digital Library
[Funeral Program for Arstrella Mae Miller, February 28, 2001]
Funeral program for Arstrella Mae Miller, born January 25, 1907. The funeral was held February 28, 2001 at St. Paul United Methodist Church, officiated by Dr. Prenza L. Woods. Funeral arrangements were made through Lewis Funeral Home and she was buried in Inglewood Park Cemetery in Inglewood, California.
Date:
February 28, 2001
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History