1,166 Matching Results

Results open in a new window/tab.

Meteorological Support at the Savanna River Site (open access)

Meteorological Support at the Savanna River Site

The Department of Energy (DOE) operates many nuclear facilities on large complexes across the United States in support of national defense. The operation of these many and varied facilities and processes require meteorological support for many purposes, including: for routine operations, to respond to severe weather events, such as lightning, tornadoes and hurricanes, to support the emergency response functions in the event of a release of materials to the environment, for engineering baseline and safety documentation, as well as hazards assessments etc. This paper describes a program of meteorological support to the Savannah River Site, a DOE complex located in South Carolina.
Date: October 14, 2005
Creator: Addis, Robert P.
Object Type: Article
System: The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 14, Ed. 1 Thursday, April 14, 2005 (open access)

Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 14, Ed. 1 Thursday, April 14, 2005

Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date: April 14, 2005
Creator: Alexander, Nancy
Object Type: Newspaper
System: The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 26, Ed. 1 Thursday, July 14, 2005 (open access)

Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 26, Ed. 1 Thursday, July 14, 2005

Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date: July 14, 2005
Creator: Alexander, Nancy
Object Type: Newspaper
System: The Portal to Texas History
Comparative genome analysis of Bacillus cereus group genomes withBacillus subtilis (open access)

Comparative genome analysis of Bacillus cereus group genomes withBacillus subtilis

Genome features of the Bacillus cereus group genomes (representative strains of Bacillus cereus, Bacillus anthracis and Bacillus thuringiensis sub spp israelensis) were analyzed and compared with the Bacillus subtilis genome. A core set of 1,381 protein families among the four Bacillus genomes, with an additional set of 933 families common to the B. cereus group, was identified. Differences in signal transduction pathways, membrane transporters, cell surface structures, cell wall, and S-layer proteins suggesting differences in their phenotype were identified. The B. cereus group has signal transduction systems including a tyrosine kinase related to two-component system histidine kinases from B. subtilis. A model for regulation of the stress responsive sigma factor sigmaB in the B. cereus group different from the well studied regulation in B. subtilis has been proposed. Despite a high degree of chromosomal synteny among these genomes, significant differences in cell wall and spore coat proteins that contribute to the survival and adaptation in specific hosts has been identified.
Date: September 14, 2005
Creator: Anderson, Iain; Sorokin, Alexei; Kapatral, Vinayak; Reznik, Gary; Bhattacharya, Anamitra; Mikhailova, Natalia et al.
Object Type: Article
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 240, Ed. 1 Friday, January 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 240, Ed. 1 Friday, January 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: January 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 266, Ed. 1 Monday, February 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 266, Ed. 1 Monday, February 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: February 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 290, Ed. 1 Monday, March 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 290, Ed. 1 Monday, March 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: March 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 12, Ed. 1 Thursday, April 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 12, Ed. 1 Thursday, April 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 62, Ed. 1 Tuesday, June 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 62, Ed. 1 Tuesday, June 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: June 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 88, Ed. 1 Thursday, July 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 88, Ed. 1 Thursday, July 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: July 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 114, Ed. 1 Sunday, August 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 114, Ed. 1 Sunday, August 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 141, Ed. 1 Wednesday, September 14, 2005 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 141, Ed. 1 Wednesday, September 14, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 14, 2005
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
Progress in Development of Kharkov X-Ray Generator Nestor (open access)

Progress in Development of Kharkov X-Ray Generator Nestor

The sources of the X-rays based on Compton scattering of intense Nd:YAG laser beam on electron beam circulating in a storage ring with beam energy 43-225 MeV is under construction in NSC KIPT. In the paper the progress in development and construction of Kharkov X-ray generator NESTOR is presented. The current status of the main facility system design and development are described. New scheme and main parameters of injection system are presented. The status of power supply system and control system is described. The facility is going to be in operation in the middle of 2007 and generated X-rays flux is expected to be of about 10{sup 13} phot/s.
Date: September 14, 2005
Creator: Androsov, V.; Bulyak, V.; Dovbnya, A.; Drebot, I.; Gladkikh, P.; Grevtsev, V. et al.
Object Type: Article
System: The UNT Digital Library
Locomotive Emission and Engine Idle Reduction Technology Demonstration Project (open access)

Locomotive Emission and Engine Idle Reduction Technology Demonstration Project

In response to a United States Department of Energy (DOE) solicitation, the Maryland Energy Administration (MEA), in partnership with CSX Transportation, Inc. (CSXT), submitted a proposal to DOE to support the demonstration of Auxiliary Power Unit (APU) technology on fifty-six CSXT locomotives. The project purpose was to demonstrate the idle fuel savings, the Nitrous Oxide (NOX) emissions reduction and the noise reduction capabilities of the APU. Fifty-six CSXT Baltimore Division locomotives were equipped with APUs, Engine Run Managers (ERM) and communications equipment to permit GPS tracking and data collection from the locomotives. Throughout the report there is mention of the percent time spent in the State of Maryland. The fifty-six locomotives spent most of their time inside the borders of Maryland and some spent all their time inside the state borders. Usually when a locomotive traveled beyond the Maryland State border it was into an adjoining state. They were divided into four groups according to assignment: (1) Power Unit/Switcher Mate units, (2) Remote Control units, (3) SD50 Pusher units and (4) Other units. The primary data of interest were idle data plus the status of the locomotive--stationary or moving. Also collected were main engine off, idling or working. Idle data …
Date: March 14, 2005
Creator: Archer, John R.
Object Type: Report
System: The UNT Digital Library
The Genome of the Diatom Thalassiosira Pseudonana: Ecology, Evolution and Metabolism (open access)

The Genome of the Diatom Thalassiosira Pseudonana: Ecology, Evolution and Metabolism

Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are responsible for {approx}20% of global carbon fixation. We report the 34 Mbp draft nuclear genome of the marine diatom, Thalassiosira pseudonana and its 129 Kbp plastid and 44 Kbp mitochondrial genomes. Sequence and optical restriction mapping revealed 24 diploid nuclear chromosomes. We identified novel genes for silicic acid transport and formation of silica-based cell walls, high-affinity iron uptake, biosynthetic enzymes for several types of polyunsaturated fatty acids, utilization of a range of nitrogenous compounds and a complete urea cycle, all attributes that allow diatoms to prosper in the marine environment. Diatoms are unicellular, photosynthetic, eukaryotic algae found throughout the world's oceans and freshwater systems. They form the base of short, energetically-efficient food webs that support large-scale coastal fisheries. Photosynthesis by marine diatoms generates as much as 40% of the 45-50 billion tonnes of organic carbon produced each year in the sea (1), and their role in global carbon cycling is predicted to be comparable to that of all terrestrial rainforests combined (2, 3). Over geological time, diatoms may have influenced global climate by changing the flux of atmospheric carbon dioxide into the oceans (4). A defining feature of …
Date: November 14, 2005
Creator: Armbrust, E. V.; Berges, J. A.; Bowler, C.; Green, B. R.; Martinez, D.; Putnam, N. H. et al.
Object Type: Article
System: The UNT Digital Library
Preparing to Submit a License Application for Yucca Mountain (open access)

Preparing to Submit a License Application for Yucca Mountain

In 1982, the U.S. Congress passed the Nuclear Waste Policy Act, a Federal law that established U.S. policy for the permanent disposal of spent nuclear fuel and high-level radioactive waste. Congress amended the Act in 1987, directing the Department of Energy to study only Yucca Mountain, Nevada as the site for a permanent geologic repository. As the law mandated, the Department evaluated Yucca Mountain to determine its suitability as the site for a permanent geologic repository. Decades of scientific studies demonstrated that Yucca Mountain would protect workers, the public, and the environment during the time that a repository would be operating and for tens of thousands of years after closure of the repository. A repository at this remote site would also: preserve the quality of the environment; allow the environmental cleanup of Cold War weapons facilities; provide the nation with additional protection from acts of terrorism; and support a sound energy policy. Throughout the scientific evaluation of Yucca Mountain, there has been no evidence to disqualify Yucca Mountain as a suitable site for the permanent disposal of spent nuclear fuel and high-level radioactive waste. Upon completion of site characterization, the Secretary of Energy considered the results and concluded that a …
Date: March 14, 2005
Creator: Arthur, W.J. & Voegele, M.D.
Object Type: Report
System: The UNT Digital Library
The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda,and w from the First Year Data Set (open access)

The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda,and w from the First Year Data Set

We present distance measurements to 71 high redshift type Ia supernovae discovered during the first year of the 5-year Supernova Legacy Survey (SNLS). These events were detected and their multi-color light-curves measured using the MegaPrime/MegaCam instrument at the Canada-France-Hawaii Telescope (CFHT), by repeatedly imaging four one-square degree fields in four bands. Follow-up spectroscopy was performed at the VLT, Gemini and Keck telescopes to confirm the nature of the supernovae and to measure their redshift. With this data set, we have built a Hubble diagram extending to z = 1, with all distance measurements involving at least two bands. Systematic uncertainties are evaluated making use of the multiband photometry obtained at CFHT. Cosmological fits to this first year SNLS Hubble diagram give the following results: {Omega}{sub M} = 0.263 {+-} 0.042 (stat) {+-} 0.032 (sys) for a flat {Lambda}CDM model; and w = -1.023 {+-} 0.090 (stat) {+-} 0.054 (sys) for a flat cosmology with constant equation of state w when combined with the constraint from the recent Sloan Digital Sky Survey measurement of baryon acoustic oscillations.
Date: October 14, 2005
Creator: Astier, P.; Guy, J.; Regnault, N.; Pain, R.; Aubourg, E.; Balam, D. et al.
Object Type: Article
System: The UNT Digital Library
Science & Technology Review July/August 2005 (open access)

Science & Technology Review July/August 2005

This journal contains the following articles (1) The Grand Challenge of Thermonuclear Ignition--Commentary by Edward I. Moses; (2) Orchestrating the World's Most Powerful Laser--The computer control system for the National Ignition Facility will soon have about 1.4-million lines of code running on more than 750 computers; (3) A Randon Walk through Time and Space--Albert einstein's 1905 papers on Brownian motion, random fluctuations, and statistical mechanics are fundamental to many Livermore research projects; (4) The Search for Methane in Earth's Mantle--Scientists are discovering that Earth's mantle may have untapped reserves of methane; and (5) Testing the Physics of Nuclear Isomers--Results from a tri-laboratory project contradict claims of accelerated release of energy from the nuclear isomer hafnium-178.
Date: June 14, 2005
Creator: Aufderheide, M B
Object Type: Report
System: The UNT Digital Library
[Letter from Ronald E. Ault to Anthony J. Principi - July 14, 2005] (open access)

[Letter from Ronald E. Ault to Anthony J. Principi - July 14, 2005]

Letter from Ronald E. Ault of the American Federation of Labor and Congress of Industrial Organizations, Metal Trades Department, to Anthony J. Principi regarding Comments by Ault about the BRAC and DoD recommendations.
Date: July 14, 2005
Creator: Ault, Ronald E.
Object Type: Letter
System: The UNT Digital Library
Biological Treatment of Petroleum in Radiologically Contaminated Soil (open access)

Biological Treatment of Petroleum in Radiologically Contaminated Soil

This chapter describes ex situ bioremediation of the petroleum portion of radiologically co-contaminated soils using microorganisms isolated from a waste site and innovative bioreactor technology. Microorganisms first isolated and screened in the laboratory for bioremediation of petroleum were eventually used to treat soils in a bioreactor. The bioreactor treated soils contaminated with over 20,000 mg/kg total petroleum hydrocarbon and reduced the levels to less than 100 mg/kg in 22 months. After treatment, the soils were permanently disposed as low-level radiological waste. The petroleum and radiologically contaminated soil (PRCS) bioreactor operated using bioventing to control the supply of oxygen (air) to the soil being treated. The system treated 3.67 tons of PCRS amended with weathered compost, ammonium nitrate, fertilizer, and water. In addition, a consortium of microbes (patent pending) isolated at the Savannah River National Laboratory from a petroleum-contaminated site was added to the PRCS system. During operation, degradation of petroleum waste was accounted for through monitoring of carbon dioxide levels in the system effluent. The project demonstrated that co-contaminated soils could be successfully treated through bioventing and bioaugmentation to remove petroleum contamination to levels below 100 mg/kg while protecting workers and the environment from radiological contamination.
Date: November 14, 2005
Creator: BERRY, CHRISTOPHER
Object Type: Book
System: The UNT Digital Library
Microbial Ecology in Modern Stromatolites from San Salvador, Bahamas (open access)

Microbial Ecology in Modern Stromatolites from San Salvador, Bahamas

None
Date: November 14, 2005
Creator: BRIGMON, ROBIN
Object Type: Article
System: The UNT Digital Library
Argonne Laboratory Computing Resource Center - FY2004 Report. (open access)

Argonne Laboratory Computing Resource Center - FY2004 Report.

In the spring of 2002, Argonne National Laboratory founded the Laboratory Computing Resource Center, and in April 2003 LCRC began full operations with Argonne's first teraflops computing cluster. The LCRC's driving mission is to enable and promote computational science and engineering across the Laboratory, primarily by operating computing facilities and supporting application use and development. This report describes the scientific activities, computing facilities, and usage in the first eighteen months of LCRC operation. In this short time LCRC has had broad impact on programs across the Laboratory. The LCRC computing facility, Jazz, is available to the entire Laboratory community. In addition, the LCRC staff provides training in high-performance computing and guidance on application usage, code porting, and algorithm development. All Argonne personnel and collaborators are encouraged to take advantage of this computing resource and to provide input into the vision and plans for computing and computational analysis at Argonne. Steering for LCRC comes from the Computational Science Advisory Committee, composed of computing experts from many Laboratory divisions. The CSAC Allocations Committee makes decisions on individual project allocations for Jazz.
Date: April 14, 2005
Creator: Bair, R.
Object Type: Report
System: The UNT Digital Library
Model Results Of The Draining Of Tank 25 Interstial Liquid (open access)

Model Results Of The Draining Of Tank 25 Interstial Liquid

SRNL was tasked to simulate the draining of interstitial liquid from Tank 25 saltcake which is scheduled to take place in 2005. The salt processing plan baseline identifies a target of 135,000 gallons of interstitial liquid to be removed from Tank 25. Due to the uncertainty of the Tank 25 material properties and conditions, several cases were modeled varying the saltcake and interstitial liquid properties. The cases present a wide range of performance. The nominal baseline, case 1, removed the 135,000 gallons in approximately 1,030 hours of pump operation. The cases with optimal drain characteristics (high intrinsic permeability, high temp.) drain the 135,000 gallons in less time. Those with less favorable drain conditions did not approach the 135,000 gallons in a reasonable amount of time. Common to all cases unable to achieve the target volume was the low temperature at which they were run, 30 C (the lowest modeled), though there were additional contributing factors. A summary of the results are shown in Table 1.
Date: February 14, 2005
Creator: Barnes, C. D. & Flach, G. P.
Object Type: Report
System: The UNT Digital Library
Effective Interactions and Operators in Nuclei within the No-Core Shell Model (open access)

Effective Interactions and Operators in Nuclei within the No-Core Shell Model

We review the application of effective operator formalism to the ab initio no core shell model (NCSM). For short-range operators, such as the nucleon-nucleon potential, the unitary-transformation method works extremely well at the two-body cluster approximation and good results are obtained for the binding energies and excitation spectra of light nuclei (A {<=} 16). However, for long-range operators, such as the radius or the quadrupole moment, performing this unitary transformation at the two-body cluster level, does not include the higher-order correlations needed to renormalize these long-range operators adequately. Usually, such correlations can be obtained either by increasing the order of the cluster approximation, or by increasing the model space. We will discuss the difficulties of these approaches as well as alternate possible solutions for including higher-order correlations in small model spaces.
Date: September 14, 2005
Creator: Barrett, B; Navratil, P; Stetcu, I & Vary, J
Object Type: Article
System: The UNT Digital Library