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Advanced geothermal foam drilling systems (AFS) -- Phase 1 final report, Part 1
An advanced coiled-tubing foam drilling system is being developed where two concentric strings of coiled tubing are used to convey water and air to the hole bottom where they are mixed together to produce foam for underbalanced drilling. This system has the potential to significantly reduce drilling costs by increasing drilling rates (due to the motor being powered by water), and reducing compressor and nitrogen costs (due to lower gas pressures and volumes).
Date:
June 30, 1999
Creator:
Maurer, W. C.
Object Type:
Report
System:
The UNT Digital Library
AISI/DOE Advanced Process Control Program Vol. 3 of 6: Improved Liquid Steel Feeding for Slab Casters
This report describes the development, construction and testing of the Electromagnetic Valve System (EVS), conducted as a project entitled ''Improved Liquid Steel Feeding System for Slab Casters''. This program ran from November 1992 to January 1995. Many of the technical issues in bringing the EVS to the steel industry were identified and resolved during the course of the program. During this time, significant hardware improvements in Westinghouse's electromagnetic valve were made to easily integrate it with existing continuous casting processes,. An improved refractory nozzle was developed and tested which had superior thermal shock and anti-cracking performance. In addition, several trials were conducted with molten steel to verify the proof-of-principle of the electromagnetic valve and its auxiliary equipment. However, improvements in other conventional pouring technologies have greatly diminished the potential value of this project to the steel industry. A such, the program w as canceled by the American Iron and Steel Institute after the conclusion of Phase I
Date:
June 30, 1999
Creator:
Isaacson, Brent; Slepian, Mike & Richter, Thomas
Object Type:
Report
System:
The UNT Digital Library
AISI/DOE Advanced Process Control Program Vol. 6 of 6: Temperature Measurement of Galvanneal Steel
This report describes the successful completion of the development of an accurate in-process measurement instrument for galvanneal steel surface temperatures. This achievement results from a joint research effort that is a part of the American Iron and Steel Institute's (AISI) Advanced Process Control Program, a collaboration between the U.S> Department of Energy and fifteen North American Steelmakers. This three-year project entitled ''Temperature Measurement of Galvanneal Steel'' uses phosphor thermography, and outgrowth of Uranium enrichment research at Oak Ridge facilities. Temperature is the controlling factor regarding the distribution of iron and zinc in the galvanneal strip coating, which in turn determines the desired product properties
Date:
June 30, 1999
Creator:
Allison, S. W.; Beshears, D. L. & Manges, W. W.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 87, Ed. 1 Wednesday, June 30, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, June 30, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Automated Student and Adult Learner Follow-Up System
Report that references the average post-exit results from each program and service, taking into account the job market and other factors that would have affected the results.
Date:
June 30, 1999
Creator:
Texas State Occupational Information Coordinating Committee
Object Type:
Report
System:
The Portal to Texas History
AXIAL SOURCE PROFILE EFFECT ON WASTE PACKAGE TRANSPORTER SHIELDING
The purpose of this scoping calculation is to support preliminary design of the Waste Package (WP) transporter radiation shield configuration. Spent Nuclear Fuel (SNF) is highly radioactive and site personnel must be protected during the period that the WPs are emplaced. Personnel protection is accomplished via a heavily shielded WP transporter that moves the waste from the surface to the emplacement drift. All previous WP transporter shielding calculations have assumed a Design Basis Fuel (DBF) in which the fuel burnup is uniform (e.g. Ref. 7.3, Ref. 7.4, and Ref. 7.12). In reality, SNF burnup varies significantly from one end of the fuel assembly to the other. Since source strengths are dependent upon fuel burnup, a model which varies the fuel burnup along the assembly axis will produce a more accurate depiction of the radiation field surrounding the WP transporter. The objective of this calculation is to determine the need for using the actual axial profile, as opposed to the uniform burnup assumption, in the WP transporter shield design. The scope of the calculation is as follows: (1) Determine the impact of axial source term variation on WP transporter contact dose rates. (2) Determine appropriate shielding modifications to account for expected …
Date:
June 30, 1999
Creator:
Nielsen, A.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 208, Ed. 1 Wednesday, June 30, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Business Opportunity Prospectus for Utilities in Solar Water Heating
Faced with deregulation and increasingly aggressive competition, utilities are looking for new products and services to increase revenues, improve customer loyalty and retention, and establish barriers to market erosion. With open access now a reality, and retail wheeling just around the corner, business expansion via new products and services is now the central goal for most utilities in the United States. It may seem surprising that solar thermal energy as applied to heating domestic hot water - an idea that has been around for a long time - offers what utilities and their residential customers want most in a new product/service. This document not only explains how and why, it shows how to get into the business and succeed on a commercial scale.
Date:
June 30, 1999
Creator:
Group, Energy Alliance
Object Type:
Report
System:
The UNT Digital Library
Child Support Enforcement: Effects of Declining Welfare Caseloads Are Beginning to Emerge
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Child Support Enforcement (CSE) program, focusing on: (1) changes in CSE welfare collections since 1994; (2) the net savings/cost experiences of state and federal CSE programs; (3) those states that have experienced declines in CSE welfare collections and how these declines affected their state's CSE program funding; and (4) the future implications of caseload declines and welfare reform changes for the CSE program."
Date:
June 30, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 52, Ed. 1 Wednesday, June 30, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Climate change initiative. Final report
None
Date:
June 30, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Contract Management: Observations on DOD's Financial Relationship With the Anthrax Vaccine Manufacturer
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the contractual relationship between the Department of Defense (DOD) and the BioPort Corporation for production of the anthrax vaccine, focusing on: (1) DOD's investment in BioPort's biologic facility and contracts to produce the vaccine; (2) BioPort's cash flow situation; and (3) proposals to improve the company's financial health."
Date:
June 30, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
The Cuero Record (Cuero, Tex.), Vol. 105, No. 26, Ed. 1 Wednesday, June 30, 1999
Weekly newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Defense Computers: Management Controls Are Critical to Effective Year 2000 Testing
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 (DOD) efforts to integrate and coordinate its various year 2000 end-to-end test activities, focusing on whether: (1) DOD's plans recognize relationships and dependencies among these test and evaluation activities; and (2) DOD has established the management controls to ensure that its various year 2000 end-to-end test and evaluation activities are effectively integrated."
Date:
June 30, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Development of a Compact Optical-MEMS Scanner with Integrated VCSEL Light Source and Diffractive Optics
In this work the design and initial fabrication results are reported for the components of a compact optical-MEMS laser scanning system. This system integrates a silicon MEMS laser scanner, a Vertical Cavity Surface Emitting Laser (VCSEL) and passive optical components. The MEMS scanner and VCSEL are mounted onto a fused silica substrate which serves as an optical interconnect between the devices. Two Diffractive Optical Elements (DOEs) are etched into the fused silica substrate to focus the VCSEL beam and increase the scan range. The silicon MEMS scanner consists of an actuator that continuously scans the position of a large polysilicon gold-coated shuttle containing a third DOE. Interferometric measurements show that the residual stress in the 500 {micro}m x 1000 {micro}m shuttle is extremely low, with a maximum deflection of only 0.18{micro}m over an 800 {micro}m span for an unmetallized case and a deflection of 0.56{micro}m for the metallized case. A conservative estimate for the scan range is {approximately}{+-}4{degree}, with a spot size of about 0.5 mm, producing 50 resolvable spots. The basic system architecture, optical and MEMS design is reported in this paper, with an emphasis on the design and fabrication of the silicon MEMS scanner portion of the system.
Date:
June 30, 1999
Creator:
Krygowski, Thomas W.; Reyes, David; Rodgers, M. Steven; Smith, James H.; Warren, Mial; Sweatt, William et al.
Object Type:
Article
System:
The UNT Digital Library
Development of a Liquid to Compressed Natural Gas (LCNG) Fueling Station. Final Report
The program objective was the development of equipment and processes to produce compressed natural gas (CNG) from liquified natural gas (LNG) for heavy duty vehicular applications. The interest for this technology is a result of the increased use of alternative fuels for the reduction of emissions and dependency of foreign energy. Technology of the type developed under this program is critical for establishing natural gas as an economical alternative fuel.
Date:
June 30, 1999
Creator:
Moore, J. A.
Object Type:
Report
System:
The UNT Digital Library
DEVELOPMENT OF ANALYTICAL METHODS FOR THE QUANTIFICATION OF THE CHEMICAL FORMS OF MERCURY AND OTHER TARGET POLLUTANTS IN COAL-FIRED BOILER FLUE GAS
Since approximately 55% of the electrical power produced in the U. S. is generated by coal-based power utility plants, there is serious concern about the massive amounts of coal combustion products emitted into the atmosphere annually. Furthermore, Title III of the 1990 Clean Air Act Amendments (CAAA) requires the measurement and inventory of a possible 189 hazardous air pollutants (HAPs) from any stationary source producing more than 10 tons per year of any one pollutant or more than 25 tons per year of total pollutants. Although power utilities are not presently included on the list of source categories, the CAAA requires the U. S. Environmental Protection Agency to carry out a study of emissions from electricity generation using fossil fuels. Since many of these HAPs are known to be present in coal derived flue gas, coal-fired electric power utilities may be subject to regulation following these studies if Congress considers it necessary. In a cooperative effort with the U. S. Environmental Protection Agency (EPA), the U. S. Department of Energy (DOE) through its Federal Energy Technology Center (FETC) initiated such a study in 1991. DOE-FETC commissioned five primary contractors to conduct emission studies at eight different coal-fired electric utilities. The …
Date:
June 30, 1999
Creator:
Terence J. McManus, Ph.D.
Object Type:
Report
System:
The UNT Digital Library
Development of in-Situ Control Diagnostics for Application of Epitaxial Superconductor and Buffer Layers
The recent achievements of critical currents in excess of 1x10{sup 6}amp/cm{sup 2} at 77K in YBCO deposited over suitably textured buffer/substrate composites have stimulated interest in the potential fabrication of these coated conductors as wire. Numerous approaches and manufacturing schemes for producing coated conductor wire are currently being developed. Recently, under the U. S. Department of Energy (DOE's) sponsorship, the University of Tennessee Space Institute (UTSI) performed an extensive evaluation of leading coated conductor processing options. In general, it is our feeling that the science and chemistry that are being developed in the coated conductor wire program now need proper engineering evaluation to define the most viable options for a commercial fabrication process. All fabrication processes will need process control measurements. This report provides a specific review of the needs and available technologies for process control for many of the coated conductor processing options. This report also addresses generic process monitoring areas in which additional research and development is needed. The concentration is on the two different approaches for obtaining the textured substrates that have been identified as viable candidates. These are the Los Alamos National Laboratory's (LANL) ion-beam assisted deposition, called IBAD, to obtain a highly textured yttria-stabilized zirconia …
Date:
June 30, 1999
Creator:
Winkleman, B. C.; Giel, T. V., Jr. & Cunningham, J.
Object Type:
Report
System:
The UNT Digital Library
The Diffusion of Simple Penetrants in Tangent Site Polymer Melts
The diffusive behavior of penetrants in simple polymer melts was investigated by molecular dynamics simulation. For the case where the polymer melt consisted of pearl-necklace chains, the diffusive behavior of the loose pearl penetrants was seen to be qualitatively different than would be expected in realistic models of polymer melts. In particular, there was little or no ''non-Fickiano'' region; the variation of the diffusion coefficient with the penetrant diameter was what one would expect for diffusion through small molecular liquids; and, finally, the long time tail of the velocity auto correlation displayed a ''-3/2'' power law form, also as in the small molecular liquid case. When the chains' backbone motion was further constrained by the introduction of a bond angle potential, the qualitative nature of the penetrant diffusion became more ''polymer-like''. A non-Fickian region developed; the diffusion coefficient varied more rapidly with penetrant diameter; and the velocity autocorrelation function developed a ''-5/2'' power law tail as would be expected for the diffusion of particles with a wide distribution of trapping times.
Date:
June 30, 1999
Creator:
Rottach, Dana R.; Tillman, Patrick A.; McCoy, John D.; Plimpton, Steven J. & Curro, John G.
Object Type:
Article
System:
The UNT Digital Library
Division of labor among the alpha-6 beta-4 integrin, beta-1 integrins and an E3 laminin receptor to signal morphogenesis and beta-casein expression in mammary epithelial cells
None
Date:
June 30, 1999
Creator:
Muschler, J.; Lochter, A.; Roskelley, C. D.; Yurchenco, P. & Bissell, M. J.
Object Type:
Article
System:
The UNT Digital Library
Energy-Efficient Air Conditioning
Many people buy or use air conditioners without understanding their designs, components, and operating principles. Proper sizing, selection, installation, maintenance, and correct use are keys to cost-effective operation and lower overall costs. This publication discusses both central and room air conditioners. Heat pumps, which provide both home cooling and heating, are not covered in this publication. Contact www.eren.doe.gov/consumerinfo for more information.
Date:
June 30, 1999
Creator:
Krigger, J. & Stewart, K.
Object Type:
Book
System:
The UNT Digital Library
Environmental Protection: Coordinated Federal Efforts Are Being Undertaken to Address Harmful Algae
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the increasing outbreaks of harmful algae, focusing on the: (1) available information on harmful algae and their effects on human health and the environment; and (2) status of federal efforts to address the problem of harmful algae, particularly the coordination of research and management strategies among the federal agencies."
Date:
June 30, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Experimental studies of the Negative Ion of Hydrogen. Final Report
This document presents an overview of the results of the DOE'S support of experimental research into the structure and interactions of the negative ion of hydrogen conducted by the Department of Physics and Astronomy of the University of New Mexico at the Los Alamos National Laboratory. The work involves many collaborations with scientists from both institutions, as well as others. Although official DOE support for this work began in 1977, the experiment that led to it was done in 1971, near the time the 800 MeV linear accelerator at Los Alamos (LAMPF) first came on line. Until the mid nineties, the work was performed using the relativistic beam at LAMFF. The most recent results were obtained using the 35 keV injector beam for the Ground Test Accelerator at Los Alamos. A list of all published results from this work is presented.
Date:
June 30, 1999
Creator:
Bryant, Howard C.
Object Type:
Report
System:
The UNT Digital Library