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Non-Adiabatic Effects on Combustion Front Propagation in Porous Media: Multiplicity of Steady States (open access)

Non-Adiabatic Effects on Combustion Front Propagation in Porous Media: Multiplicity of Steady States

The sustained propagation of combustion fronts in porous media is a necessary condition for the success of an in situ combustion project for oil recovery. Compared to other recovery methods, in situ combustion involves the added complexity of exothermic reactions and temperature-dependent chemical kinetics. In the presence of heat losses, the possibility of ignition and extinction (quenching) exists. In this report, we address the properties of combustion fronts propagating at a constant velocity in the presence of heat losses.
Date: March 11, 2002
Creator: Akkutlu, I. Yucel & Yortsos, Yanis C.
Object Type: Report
System: The UNT Digital Library
Vitalinks (open access)

Vitalinks

The objectives of the VITALINKS tabletop exercise are to: Raise awareness of infrastructure interdependency issues; Identify and focus on the most important vulnerabilities and restoration priorities resulting from infrastructure disruptions; Examine the resources (people and equipment) required to sustain systems under emergency conditions; Identify and highlight roles, responsibilities, and authorities (including trans-border issues); and Continue to foster a more effective interface among public and private sector service providers and public officials in developing and implementing critical infrastructure protection, mitigation, response, and recovery options.
Date: March 11, 2002
Creator: Baldwin, T. B.
Object Type: Article
System: The UNT Digital Library
Earth Sciences Division Revision to Publications List. Annual Report 2000-2001 (open access)

Earth Sciences Division Revision to Publications List. Annual Report 2000-2001

None
Date: March 11, 2002
Creator: Benson, Sally & Goldstein, Norman
Object Type: Report
System: The UNT Digital Library
Daily Journal (Perry, Okla.), Vol. 109, No. 50, Ed. 1 Monday, March 11, 2002 (open access)

Daily Journal (Perry, Okla.), Vol. 109, No. 50, Ed. 1 Monday, March 11, 2002

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: March 11, 2002
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, March 11, 2002 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, March 11, 2002

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 11, 2002
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 103, No. 320, Ed. 1 Monday, March 11, 2002 (open access)

Altus Times (Altus, Okla.), Vol. 103, No. 320, Ed. 1 Monday, March 11, 2002

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: March 11, 2002
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 80, No. 105, Ed. 1 Monday, March 11, 2002 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 80, No. 105, Ed. 1 Monday, March 11, 2002

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 11, 2002
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
President Bush's 2002 State Visits in Asia: Implications (open access)

President Bush's 2002 State Visits in Asia: Implications

None
Date: March 11, 2002
Creator: Dumbaugh, Kerry; Cronin, Richard P. & Niksch, Larry A.
Object Type: Report
System: The UNT Digital Library
The Export Administration Act: Controversy and Prospects (open access)

The Export Administration Act: Controversy and Prospects

In the 107th Congress, renewed efforts are underway to enact a permanent replacement for the Export Administration Act of 1979 (EAA), temporarily reauthorized in the 106th Congress until August 20, 2001. The Export Administration Act of 2001 (S. 149) was introduced on January 23, 2001. Hearings were held by the Senate Banking Committee, and the bill was reported for consideration by the full Senate by a vote of 19-1 to March 22, 2001. The difficulty in passing a comprehensive rewrite of the EAA has resulted, in part, from the continuing tension between national security and commercial concerns. Industry groups, proponents of heightened export controls, the Administration, and Congress have all participated in the reauthorization debate.
Date: March 11, 2002
Creator: Fergusson, Ian F.
Object Type: Report
System: The UNT Digital Library
Export Administration Act of 1979 Reauthorization (open access)

Export Administration Act of 1979 Reauthorization

The Export Administration Act of 2001 was introduced on January 23, 2001. Hearings were held by the Senate Banking, Housing, and Urban Affairs Committee, and the bill was reported for consideration by the full Senate by a vote of 19-1 to March 22, 2001. A companion version in the House, H.R. 2581, was introduced by Rep. Gilmanon July 20, 2001. The House International Relations Committee reported the measure with 35 amendments on August 1. The Export Administration Act of 1979 expired on August 20, 2001, however the President extended export control authority and the Export Administration Regulations by invoking the International Emergency Economic Powers Act. During the 106th Congress, both houses held hearings on export control legislation and the Senate Banking Committee voted to adopt the Export Administration Act of 1999 (S. 1712, reported on October 8, 1999, S.Rept. 106-180).
Date: March 11, 2002
Creator: Fergusson, Ian F.; Shuey, Robert; Elwell, Craig K. & Grimmett, Jeanne J.
Object Type: Report
System: The UNT Digital Library
Pressure Measurements in a PBX 9501 Gauged Acceptor When Impacted by a Steel Plate that is Accelerated by a Thermally Cooked Off PBX 9501 Charge (open access)

Pressure Measurements in a PBX 9501 Gauged Acceptor When Impacted by a Steel Plate that is Accelerated by a Thermally Cooked Off PBX 9501 Charge

Measuring the violence of a thermal explosion of a cased explosive is important for evaluating safety issues of explosive devices in fires. A sympathetic initiation scenario was studied here where a 9.0 cm diameter by 2.5 cm thick disc of PBX 9501 donor charge encased in a 304 stainless steel assembly was heated on top and bottom flat surfaces until it thermally exploded. The initial heating rate at the metal/explosive interface was 5 C per minute until it reaches 170 C; then this temperature is held for 35 minutes to allow temperature equilibration to within a few degrees throughout the explosive. The heating resumed at a rate of 1 C per minute until the PBX 9501 donor thermally exploded. A PBX 9501 acceptor charge with carbon resistor and manganin foil pressure gauges inserted at various depths was placed at a 10 cm standoff distance from the donor charge's top steel cover plate. Piezoelectric arrival time pins were placed in front of the acceptor surface to measure the velocity and shape of the impacting plate. The stainless steel cover plate of the donor charge had a nominal velocity of 0.55 {+-} 0.04 mm/{micro}s upon impact and was non-symmetrically warped. The impact …
Date: March 11, 2002
Creator: Forbes, J W; Garcia, F; Urtiew, P A; Vandersall, K S; Greenwood, D W & Tarver, C M
Object Type: Article
System: The UNT Digital Library
Experimental and Theoretical Determination of Heavy Oil Viscosity Under Reservoir Conditions (open access)

Experimental and Theoretical Determination of Heavy Oil Viscosity Under Reservoir Conditions

The main objective of this research was to propose a simple procedure to predict heavy oil viscosity at reservoir conditions as a function of easily determined physical properties. This procedure will avoid costly experimental testing and reduce uncertainty in designing thermal recovery processes.
Date: March 11, 2002
Creator: Gabitto, Jorge & Barrufet, Maria
Object Type: Report
System: The UNT Digital Library
NATO Enlargement (open access)

NATO Enlargement

None
Date: March 11, 2002
Creator: Gallis, Paul E.
Object Type: Report
System: The UNT Digital Library
ANALYSIS OF CHP POTENTIAL AT FEDERAL SITES (open access)

ANALYSIS OF CHP POTENTIAL AT FEDERAL SITES

This document was prepared at the request of the U.S. Department of Energy's (DOE's) Federal Energy Management Program (FEMP) under its Technical Guidance and Assistance and Project Financing Programs. The purpose was to provide an estimate of the national potential for combined heat and power (also known as CHP; cogeneration; or cooling, heating, and power) applications at federal facilities and the associated costs and benefits including energy and emission savings. The report provides a broad overview for the U.S. Department of Energy (DOE) and other agencies on when and where CHP systems are most likely to serve the government's best interest. FEMP's mission is to reduce the cost to and environmental impact of the federal government by advancing energy efficiency and water conservation, promoting the use of renewable energy, and improving utility management decisions at federal sites. FEMP programs are driven by its customers: federal agency sites. FEMP monitors energy efficiency and renewable energy technology developments and mounts ''technology-specific'' programs to make technologies that are in strong demand by agencies more accessible. FEMP's role is often one of helping the federal government ''lead by example'' through the use of advanced energy efficiency/renewable energy (EERE) technologies in its own buildings and …
Date: March 11, 2002
Creator: HADLEY, S.W.
Object Type: Report
System: The UNT Digital Library
The Brookhaven National Laboratory Perfluorocarbon Tracer Technology: A Proven and Cost Effective Method to Verify Integrity and Monitor Long Term Performance of Walls, Floors, Caps, and Cover Systems. (open access)

The Brookhaven National Laboratory Perfluorocarbon Tracer Technology: A Proven and Cost Effective Method to Verify Integrity and Monitor Long Term Performance of Walls, Floors, Caps, and Cover Systems.

Currently, containment system failures are detected by monitoring wells downstream of the waste site. Clearly this approach is inefficient, as the contaminants will have migrated from the disposal area before they are detected. Methods that indicate early cover failure (prior to contaminant release) or predict impending cover failure are needed. The Brookhaven National Laboratory (BNL) Perfluorocarbon Tracer (PFT) technology can measure performance changes and integrity losses as the cover ages. This allows early detection of cover failure or pending failure so that repair or replacement can be made before contaminants leave the disposal cell. The PFT technology has been successfully applied to four subsurface barrier problems, one leak detection problem from underground ducts, and one surface cover problem. Testing has demonstrated that the PFTs are capable of accurately detecting and locating leaks down to fractions of an inch. The PFT technology has several advantages over competing approaches. The ability to simultaneously use multiple PFTs separates it from other gas tracer technologies. Using multiple tracers provides independent confirmation of flaw location, helps to clearly define transport pathways, and can be used for confirmatory testing (e.g., repeat the test using a new tracer). The PFT tests provide a direct measure of flaws …
Date: March 11, 2002
Creator: Heiser, J. & Sullivan, T.
Object Type: Report
System: The UNT Digital Library
Appropriations for FY2002: Labor, Health and Human Services, and Education (open access)

Appropriations for FY2002: Labor, Health and Human Services, and Education

Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Labor, Health and Human Services, and Education Appropriations Subcommittees.
Date: March 11, 2002
Creator: Irwin, Paul M.
Object Type: Report
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 116, Ed. 1 Monday, March 11, 2002 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 116, Ed. 1 Monday, March 11, 2002

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: March 11, 2002
Creator: Johnson, Jennifer
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Federal Migrant Education Program as Amended by the No Child Left Behind Act of 2001 (open access)

The Federal Migrant Education Program as Amended by the No Child Left Behind Act of 2001

This report
Date: March 11, 2002
Creator: Kuenzi, Jeffrey J.
Object Type: Report
System: The UNT Digital Library
Scientific Presentations: 8th Meeting of the Management Steering Committee of the RIKEN BNL Collaboration, (RBRC Scientific Articles, Volume 5). (open access)

Scientific Presentations: 8th Meeting of the Management Steering Committee of the RIKEN BNL Collaboration, (RBRC Scientific Articles, Volume 5).

None
Date: March 11, 2002
Creator: Lee, T. D.
Object Type: Report
System: The UNT Digital Library
Deflagration Behavior of PBXN-109 and Composition B at High Pressures and Temperatures (open access)

Deflagration Behavior of PBXN-109 and Composition B at High Pressures and Temperatures

We report deflagration rate measurements on PBXN-109 (RDWAVHTPB) and Composition B (RXDTTNThrvax) at pressures from 1,500-100,000 psi (10-700 MPa). This was done with the LLNL High Pressure Strand Burner, in which embedded wires are used to record the time-of-arrival of the burn front in the cylindrical sample as a function of pressure. The propellant samples are 6.4 mm in diameter and 6.4 mm long, with burn wires inserted between samples. Burning on the cylindrical surface is inhibited with an epoxy or polyurethane layer. With this direct measurement we do not have to account for product gas equation of state or heat losses in the system, and the burn wires allow detection of irregular burning. We report deflagration results for PBXN-109 as received, and also after it has been damaged by heating. The burn behavior of pristine PBXN-109 is very regular, and exhibits a reduction in pressure exponent from 1.32 to 0.85 at pressures above 20,000 psi (135 MPa). When PBXN-109 is thermally damaged by heating to 170-180 C, the deflagration rate is increased by more than a factor of 10. This appears to be a physical effect, as the faster burning may be explained by an increase in surface area. …
Date: March 11, 2002
Creator: Maienschein, J L & Wardell, J F
Object Type: Article
System: The UNT Digital Library
Applications of molecular spectroscopy methods to the study of metal dusting corrosion. (open access)

Applications of molecular spectroscopy methods to the study of metal dusting corrosion.

The interrogation of molecular vibrations in crystalline and amorphous solids by Raman and infrared spectroscopy methods can provide a wealth of revealing information concerning the composition, morphology, and spatial distribution of the extant phases. When these measurements are made in situ, such as during processes taking place in extreme environments (e.g., elevated temperature and pressure, oxidizing or reducing), where phases are evolving and/or dissipating, it is also possible to derive kinetic and mechanistic parameters. This paper summarizes the possibilities and limitations involved in using various types of Raman and infrared measurement methods to study metal dusting corrosion. Applications of conventional, microprobe, and imaging molecular spectroscopy approaches are discussed, with examples taken directly from metal dusting investigations. Some perspective is offered concerning the origin of observable condensed matter phonons emanating from the surface films and the carbon particles that accompany carbon dusting on various types of metals and alloys. Concepts for the systematic investigation of carbon dusting chemistry using molecular spectroscopy methods are presented.
Date: March 11, 2002
Creator: Maroni, V. A.
Object Type: Article
System: The UNT Digital Library
Marginal Expense Oil Well Wireless Surveillance (MEOWWS) (open access)

Marginal Expense Oil Well Wireless Surveillance (MEOWWS)

The objective of this study was to identify and field test a new, low cost, wireless oil well surveillance system. A variety of suppliers and technologies were considered. One supplier and system was chosen that was low cost, new to the oil field, and successfully field tested.
Date: March 11, 2002
Creator: Nelson, Donald G.
Object Type: Report
System: The UNT Digital Library
Barriers in developing and using simulation-based decision-support software (open access)

Barriers in developing and using simulation-based decision-support software

The need for proper consideration of energy-related performance aspects during building design has been identified since the energy crises of the 1970s. However, energy performance is still considered in a very small fraction of building projects, mainly because proper consideration is very expensive. It requires the use of computational software tools, which are not easy to learn and are time-consuming to use. Several attempts have been made to facilitate the use of energy simulation tools, but none has brought a significant increase in the consideration of energy performance. Energy related performance criteria are still considered only in a small fraction of buildings and, in most cases, after most of the building design is complete. This paper is focused on the main barriers in properly considering energy-related performance aspects in building decisions, which range from sociopolitical, to technical. The paper includes consideration of issues related to the general interest of the building industry in energy performance and environmental impact, current practice trends, modeling capabilities and performance of tools, compatibility of computational models and availability of data. Finally, a strategy for government-industry collaboration towards removing the barriers is presented, along with the main issues that need to be resolved towards potential implementation.
Date: March 11, 2002
Creator: Papamichael, Konstantinos & Pal, Vineeta
Object Type: Article
System: The UNT Digital Library
The Enron Bankruptcy and Employer Stock in Retirement Plans (open access)

The Enron Bankruptcy and Employer Stock in Retirement Plans

This report describes the current laws governing the holding of employer stock in employee retirement plans and summarizes some key policy questions that pension analysts have raised about holding such stock in defined contribution retirement plans.
Date: March 11, 2002
Creator: Purcell, Patrick J.
Object Type: Report
System: The UNT Digital Library