Language

68 Matching Results

Results open in a new window/tab.

Altus Times (Altus, Okla.), Vol. 106, No. 228, Ed. 1 Friday, December 31, 2004 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 228, Ed. 1 Friday, December 31, 2004

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: December 31, 2004
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
High-Precision Floating-Point Arithmetic in ScientificComputation (open access)

High-Precision Floating-Point Arithmetic in ScientificComputation

At the present time, IEEE 64-bit floating-point arithmetic is sufficiently accurate for most scientific applications. However, for a rapidly growing body of important scientific computing applications, a higher level of numeric precision is required: some of these applications require roughly twice this level; others require four times; while still others require hundreds or more digits to obtain numerically meaningful results. Such calculations have been facilitated by new high-precision software packages that include high-level language translation modules to minimize the conversion effort. These activities have yielded a number of interesting new scientific results in fields as diverse as quantum theory, climate modeling and experimental mathematics, a few of which are described in this article. Such developments suggest that in the future, the numeric precision used for a scientific computation may be as important to the program design as are the algorithms and data structures.
Date: December 31, 2004
Creator: Bailey, David H.
Object Type: Article
System: The UNT Digital Library
A Pseudo-Random Number Generator Based on Normal Numbers (open access)

A Pseudo-Random Number Generator Based on Normal Numbers

In a recent paper, Richard Crandall and the present author established that each of a certain class of explicitly given real constants, uncountably infinite in number, is b-normal, for an integer that appears in the formula defining the constant. A b-normal constant is one where every string of m digits appears in the base-b expansion of the constant with limiting frequency b{sup -m}. This paper shows how this result can be used to fashion an efficient and effective pseudo-random number generator, which generates successive strings of binary digits from one of the constants in this class. The resulting generator, which tests slightly faster than a conventional linear congruential generator, avoids difficulties with large power-of-two data access strides that may occur when using conventional generators. It is also well suited for parallel processing--each processor can quickly and independently compute its starting value, with the collective sequence generated by all processors being the same as that generated by a single processor.
Date: December 31, 2004
Creator: Bailey, David H.
Object Type: Report
System: The UNT Digital Library
Mitigation bank promotes research on restoring Coastal Plain depression wetlands (South Carolina). (open access)

Mitigation bank promotes research on restoring Coastal Plain depression wetlands (South Carolina).

Barton, Christopher, D., Diane DeSteven and John C. Kilgo. 2004. Mitigation bank promotes research on restoring Coastal Plain depression wetlands (South Carolina). Ecol. Rest. 22(4):291-292. Abstract: Carolina bays and smaller depression wetlands support diverse plant communities and provide critical habitat for semi-aquatic fauna throughout the Coastal Plain region of the southeastern United States. Historically, many depression wetlands were altered or destroyed by surface ditching, drainage, and agricultural or silviculture uses. These important habitats are now at further risk of alteration and loss following a U.S. Supreme Court decision in 2001 restricting federal regulation of isolated wetlands. Thus, there is increased attention towards protecting intact sites and developing methods to restore others. The U.S. Department of Energy's (DOE) 312-mi2 (800-km2) Savannah River Site (SRS) in west-central South Carolina includes about 350 Carolina bays and bay-like wetland depressions, of which about two-thirds were degraded or destroyed prior to federal acquisition of the land. Although some of the altered wetlands have recovered naturally, others still have active active drainage ditches and contain successional forests typical of drained sites. In 1997, DOE established a wetland mitigation bank to compensate for unavoidable wetland impacts on the SRS. This effort provided an opportunity fir a systematic …
Date: December 31, 2004
Creator: Barton, Christopher D.; DeSteven, Diane & Kilgo, John C.
Object Type: Article
System: The UNT Digital Library
NOx Control Options and Integration for US Coal Fired Boilers Quarterly Progress Report: October-December 2004 (open access)

NOx Control Options and Integration for US Coal Fired Boilers Quarterly Progress Report: October-December 2004

This is the eighteenth Quarterly Technical Report for DOE Cooperative Agreement No: DEFC26-00NT40753. The goal of the project is to develop cost effective analysis tools and techniques for demonstrating and evaluating low NOx control strategies and their possible impact on boiler performance for boilers firing US coals. The Electric Power Research Institute (EPRI) is providing co-funding for this program. Safety equipment for ammonia for the SCR slipstream reactor at Plant Gadsden was installed. The slipstream reactor was started and operated for about 1400 hours during the last performance period. Laboratory analysis of exposed catalyst and investigations of the sulfation of fresh catalyst continued at BYU. Thicker end-caps for the ECN probes were designed and fabricated to prevent the warpage and failure that occurred at Gavin with the previous design. A refurbished ECN probe was successfully tested at the University of Utah combustion laboratory. Improvements were implemented to the software that controls the flow of cooling air to the ECN probes.
Date: December 31, 2004
Creator: Bockelie, Mike; Davis, Kevin; Senior, Connie; Shino, Darren; Swenson, Dave; Baxter, Larry et al.
Object Type: Report
System: The UNT Digital Library
Material Property Estimation for Direct Detection of DNAPL using Integrated Ground-Penetrating Radar Velocity, Imaging and Attribute Analysis (open access)

Material Property Estimation for Direct Detection of DNAPL using Integrated Ground-Penetrating Radar Velocity, Imaging and Attribute Analysis

The focus of this project is direct detection of DNAPLs, specifically chlorinated solvents, via material property estimation from multi-fold surface ground-penetrating radar (GPR) data. We combine state-of-the-art GPR processing methodology with quantitative attribute analysis and material property estimation to determine the location and extent of residual and/or pooled DNAPL in both the vadose and saturated zones. An important byproduct of our research is state-of-the-art imaging which allows us to pinpoint attribute anomalies, characterize stratigraphy, identify fracture zones, and locate buried objects.
Date: December 31, 2004
Creator: Bradford, John H.; Holbrook, W. Stephen & Smithson, Scott B.
Object Type: Report
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 90, No. 95, Ed. 1 Friday, December 31, 2004 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 90, No. 95, Ed. 1 Friday, December 31, 2004

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: December 31, 2004
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 111, No. 244, Ed. 1 Friday, December 31, 2004 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 111, No. 244, Ed. 1 Friday, December 31, 2004

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: December 31, 2004
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
METHANE de-NOX for Utility PC Boilers (open access)

METHANE de-NOX for Utility PC Boilers

Preparations for conducting large-scale combustion tests with caking bituminous coal continued during the start of this quarter. Major project accomplishments related to bituminous coal testing included: a CFD preheat model and evaluation, an update of the process flow diagram and a detailed preheat burner mechanical design (suitable for construction) for firing bituminous coal. Installation and testing of the 85 MMBtu/h bituminous coal preheating system was planned to take place before the end of December. Based on the inability to conduct testing in Riley's Commercial Burner Test Facility (CBTF) during freezing weather, a schedule review indicated required site work for testing bituminous coal at the CBTF could not be completed before freezing weather set in at the site. Further bituminous preheat modification work was put on hold and efforts turned to securing the test facility over the winter season. Bituminous coal tests are therefore delayed; April-May 2005 is earliest estimate of when testing can resume. A request for a time extension was submitted to DOE to extend the project through September 2005 to allow time to secure additional funding and complete the bituminous coal testing. Removal of the PRB PC Preheater from the CBTF burner deck was completed. Decommissioning of the …
Date: December 31, 2004
Creator: Bryan, Bruce; Rabovitser, Joseph; Nester, Serguei & Wohadlo, Stan
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, December 31, 2004 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Friday, December 31, 2004

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: December 31, 2004
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Coal Combustion Products Extension Program (open access)

Coal Combustion Products Extension Program

The primary objective of the CCP Extension Program is to promote the responsible uses of Ohio CCPs that are technically sound, environmentally safe, and commercially competitive. A secondary objective is to assist other CCP generating states (particularly neighboring states) in establishing CCP use programs within their states. The goal of the CCP extension program at OSU is to work with CCP stakeholders to increase the overall CCP state utilization rate to more than 30% by the year 2005. The program aims to increase FGD utilization for Ohio to more than 20% by the year 2005. The increased utilization rates are expected to be achieved through increased use of CCPs for highway, mine reclamation, agricultural, manufacturing, and other civil engineering uses. In order to accomplish these objectives and goals, the highly successful CCP pilot extension program previously in place at the university has been expanded and adopted by the university as a part of its outreach and engagement mission. The extension program is an innovative technology transfer program with multiple sponsors. The program is a collaborative effort between The Ohio State University (College of Engineering and University Extension Service), United States Department of Energy's National Energy Technology Laboratory, Ohio Department of …
Date: December 31, 2004
Creator: Butalia, T. S. & Wolfe, W. E.
Object Type: Report
System: The UNT Digital Library
Scale-Up and Demonstration of Fly Ash Ozonation Tech (open access)

Scale-Up and Demonstration of Fly Ash Ozonation Tech

This is the third quarterly report under DOE Cooperative Agreement No.: DE-FC26-03NT41730. Due a number of circumstances, mostly associated with subcontractor agreements, the actual beginning of the project was delayed from its original award date of March 5, 2003. DOE's Project Manager was kept informed (verbally) by PPL's Project Manager throughout this period. Because of this delay, this is the third quarterly report and it refers to the time period from October to December 2004. As the project is in its ''pre-deployment'' stage, no results are available. This report summarizes the ongoing activities and provides an updated schedule. No significant issues or concerns are identified.
Date: December 31, 2004
Creator: Buz, Larry La & Afonso, Rui
Object Type: Report
System: The UNT Digital Library
FIELD DEMONSTRATION OF CARBON DIOXIDE MISCIBLE FLOODING IN THE LANSING-KANSAS CITY FORMATION, CENTRAL KANSAS (open access)

FIELD DEMONSTRATION OF CARBON DIOXIDE MISCIBLE FLOODING IN THE LANSING-KANSAS CITY FORMATION, CENTRAL KANSAS

A pilot carbon dioxide miscible flood was initiated in the Lansing Kansas City C formation in the Hall Gurney Field, Russell County, Kansas. Continuous carbon dioxide injection began on December 2, 2003. By the end of December 2004, 11.39 MM lb of carbon dioxide were injected into the pilot area. Carbon dioxide injection rates averaged about 242 MCFD. Vent losses were excessive during June as ambient temperatures increased. Installation of smaller plungers in the carbon dioxide injection pump reduced the recycle and vent loss substantially. Carbon dioxide was detected in one production well near the end of May and in the second production well in August. No channeling of carbon dioxide was observed. The GOR has remained within the range of 3000-4000 for most the last six months. Wells in the pilot area produced 100% water at the beginning of the flood. Oil production began in February, increasing to an average of about 2.35 B/D for the six month period between July 1 and December 31. Cumulative oil production was 814 bbls. Neither well has experienced increased oil production rates expected from the arrival of the oil bank generated by carbon dioxide injection.
Date: December 31, 2004
Creator: Byrnes, Alan; Willhite, G. Paul; Green, Don; Dubois, Martin; Pancake, Richard; Carr, Timothy et al.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 84, No. 26, Ed. 1 Friday, December 31, 2004 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 84, No. 26, Ed. 1 Friday, December 31, 2004

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: December 31, 2004
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
Signal Transduction Pathways that Regulate CAB Gene Expression (open access)

Signal Transduction Pathways that Regulate CAB Gene Expression

The process of chloroplast differentiation, involves the coordinate regulation of many nuclear and chloroplast genes. The cues for the initiation of this developmental program are both extrinsic (e.g., light) and intrinsic (cell-type and plastid signals). During this project period, we utilized a molecular genetic approach to select for Arabidopsis mutants that did not respond properly to environmental light conditions, as well as mutants that were unable to perceive plastid damage. These latter mutants, called gun mutants, define two retrograde signaling pathways that regulate nuclear gene expression in response to chloroplasts. A major finding was to identify a signal from chloroplasts that regulates nuclear gene transcription. This signal is the build-up of Mg-Protoporphyrin IX, a key intermediate of the chlorophyll biosynthetic pathway. The signaling pathways downstream of this signal are currently being studied. Completion of this project has provided an increased understanding of the input signals and retrograde signaling pathways that control nuclear gene expression in response to the functional state of chloroplasts. These studies should ultimately influence our abilities to manipulate plant growth and development, and will aid in the understanding of the developmental control of photosynthesis.
Date: December 31, 2004
Creator: Chory, Joanne
Object Type: Report
System: The UNT Digital Library
Port of Tillamook Bay (POTB); Methane Energy Agriculture Development (MEAD); Dairy Digester Project (open access)

Port of Tillamook Bay (POTB); Methane Energy Agriculture Development (MEAD); Dairy Digester Project

The Tillamook Digester is a fully operational demonstration project that will identify the components necessary to bring the concept to a financially viable alternative for handling waste manure from dairy operations in Tillamook County.
Date: December 31, 2004
Creator: Crider, Jack
Object Type: Report
System: The UNT Digital Library
Range-wide success of red-cockaded woodpecker translocations. (open access)

Range-wide success of red-cockaded woodpecker translocations.

Edwards, John W.; Costa, Ralph. 2004. Range-wide success of red-cockaded woodpecker translocations. In: Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 6. Translocation. Pp 307-311. Abstract: Red-cockaded woodpeckers (Picoides borealis) have declined range-wide during the past century, suffering from habitat loss and the effects of fire exclusion in older southern pine forests. Red-cockaded woodpecker translocations are a potentially important tool in conservation efforts to reestablish red-cockaded woodpeckers in areas from which they have been extirpated. Currently, translocations are critical in ongoing efforts to save and restore the many existing small populations. We examined the effects of demographic and environmental factors on the range-wide success of translocations between 1989 and 1995.
Date: December 31, 2004
Creator: Edwards, John W. & Costa, Ralph
Object Type: Article
System: The UNT Digital Library
A mobile aviary to enhance translocation success of red-cockaded woodpeckers. (open access)

A mobile aviary to enhance translocation success of red-cockaded woodpeckers.

Edwards, John W., Yvette Mari, and Webb Smathers. 2004. A mobile aviary to enhance translocation success of red-cockaded woodpeckers. In: Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 6. Translocation. Pp 335-336. Abstract: Because translocations of male red-cockaded woodpeckers have been less successful (Costa and Kennedy 1994) and because translocations of females are dependent on the availability of established males, a technique to increase the success of translocations would be an important contribution to conservation efforts. Researchers from the U.S. Forest Service Southern Research Station hypothesized that by maintaining red-cockaded woodpeckers in an aviary prior to release the birds would develop an affinity for, and possibly imprint (Scott and Carpenter 1987) on their surroundings, and that this would increase their likelyhood of remaining in the cluster upon their release.
Date: December 31, 2004
Creator: Edwards, John W.; Mari, Yvett & Smathers, Webb
Object Type: Article
System: The UNT Digital Library
Hydrogen Production for Fuel Cells Via Reforming Coal-Derived Methanol (open access)

Hydrogen Production for Fuel Cells Via Reforming Coal-Derived Methanol

None
Date: December 31, 2004
Creator: Erickson, Paul A.
Object Type: Report
System: The UNT Digital Library
Mechanisms of Heavy Metal Sequestration in Soils: Plant-Microbe Interactions and Organic Matter Aging (open access)

Mechanisms of Heavy Metal Sequestration in Soils: Plant-Microbe Interactions and Organic Matter Aging

For stabilization of heavy metals at contaminated sites, the three way interaction among soil organic matter (OM)-microbes-plants, and their effect on heavy metal binding is critically important for long-term sustainability, a factor that is poorly understood at the molecular level. Using a soil aging system, the humification of plant matter such as wheat straw was probed along with the effect on microbial community on soil from the former McClellan Air Force Base.
Date: December 31, 2004
Creator: Fan, Teresa W.-M.; Higashi, Richard M.; Crowley, David; Cassel, Andrew N. Lane: Teresa A. & Green, Peter G.
Object Type: Report
System: The UNT Digital Library
Database of prompt gamma rays from slow neutron capture forelemental analysis (open access)

Database of prompt gamma rays from slow neutron capture forelemental analysis

The increasing importance of Prompt Gamma-ray ActivationAnalysis (PGAA) in a broad range of applications is evident, and has beenemphasized at many meetings related to this topic (e.g., TechnicalConsultants' Meeting, Use of neutron beams for low- andmedium-fluxresearch reactors: radiography and materialscharacterizations, IAEA Vienna, 4-7 May 1993, IAEA-TECDOC-837, 1993).Furthermore, an Advisory Group Meeting (AGM) for the Coordination of theNuclear Structure and Decay Data Evaluators Network has stated that thereis a need for a complete and consistent library of cold- and thermalneutron capture gammaray and cross-section data (AGM held at Budapest,14-18 October 1996, INDC(NDS)-363); this AGM also recommended theorganization of an IAEA CRP on the subject. The International NuclearData Committee (INDC) is the primary advisory body to the IAEA NuclearData Section on their nuclear data programmes. At a biennial meeting in1997, the INDC strongly recommended that the Nuclear Data Section supportnew measurements andupdate the database on Neutron-induced PromptGamma-ray Activation Analysis (21st INDC meeting, INDC/P(97)-20). As aconsequence of the various recommendations, a CRP on "Development of aDatabase for Prompt Gamma-ray Neutron Activation Analysis (PGAA)" wasinitiated in 1999. Prior to this project, several consultants had definedthe scope, objectives and tasks, as approved subsequently by the IAEA.Each CRP participant assumed responsibility for the execution of specifictasks. …
Date: December 31, 2004
Creator: Firestone, R. B.; Choi, H. D.; Lindstrom, R. M.; Molnar, G. L.; Mughabghab, S. F.; Paviotti-Corcuera, R. et al.
Object Type: Report
System: The UNT Digital Library
Laboratory Directed Research and Development Annual Report to the Department of Energy - December 2004 (open access)

Laboratory Directed Research and Development Annual Report to the Department of Energy - December 2004

Brookhaven National (BNL) Laboratory is a multidisciplinary laboratory that carries out basic and applied research in the physical, biomedical, and environmental sciences, and in selected energy technologies. It is managed by Brookhaven Science Associates, LLC, under contract with the U. S. Department of Energy. BNL's total annual budget has averaged about $460 million. There are about 2,800 employees, and another 4,500 guest scientists and students who come each year to use the Laboratory's facilities and work with the staff. The BNL Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) annually in March, as required by DOE Order 4 13.2A, ''Laboratory Directed Research and Development,'' January 8, 2001, and the LDRD Annual Report guidance, updated February 12, 1999. The LDRD Program obtains its funds through the Laboratory overhead pool and operates under the authority of DOE Order 413.2A. The goals and objectives of BNL's LDRD Program can be inferred from the Program's stated purposes. These are to (1) encourage and support the development of new ideas and technology, (2) promote the early exploration and exploitation of creative and innovative concepts, and (3) develop new ''fundable'' R&D projects and programs. The emphasis is …
Date: December 31, 2004
Creator: Fox, K. J.
Object Type: Report
System: The UNT Digital Library
The effect of using a "soft" release on translocation success of red-cockaded woodpeckers. (open access)

The effect of using a "soft" release on translocation success of red-cockaded woodpeckers.

Franzreb, Kathleen, E. 2004 The effect of using a "soft" release on translocation success of red-cockaded woodpeckers. In: Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 6. Translocation. Pp 301-306. Abstract: Translocations of the endangered red-cockaded woodpecker have been conducted since 1986 to enhance critically small subpopulations, to minimize the likelihood of local extirpations, and to reduce the adverse effects of fragmentation and isolation among existing populations. Such attempts have had mixed success. This article compares "hard" releases with a "soft" release technique where the birds are temporarily interned in a large aviary at the release point for a period of 9 to 14 days.
Date: December 31, 2004
Creator: Franzreb, Kathleen, E.
Object Type: Article
System: The UNT Digital Library
Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina. (open access)

Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina.

Franzreb, Kathleen, E. 2004. Habitat preferences of foraging red-cockaded woodpeckers at the Savannah River Site, South Carolina. In: Red-cockaded woodpecker; Road to Recovery. Proceedings of the 4th Red-cockaded woodpecker Symposium. Ralph Costa and Susan J. Daniels, eds. Savannah, Georgia. January, 2003. Chapter 9. Habitat Management and Habitat Relationships. Pp 553-561. Abstract: I constructed a foraging study to examine habitat use of red-cockaded woodpeckers at the Savannah River Site, South Carolina. Because much of the land had been harvested in the late 1940s and early 1950s prior to being sold to the Department of Energy, the available habitat largely consisted of younger trees (e.g., less than 40 years old). From 1992 to 1995, I examined the foraging behavior and reproductive success of 7 groups of red-cockaded woodpeckers.
Date: December 31, 2004
Creator: Franzreb, Kathleen, E.
Object Type: Article
System: The UNT Digital Library