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Federal Register Notice 07/07/05 PP39241-39242 - Notice of the Defense Base Closure and Realignment Commission—Change to the Location of Previously Announced Open Meetings
Notice of the BRAC Commission—Change to the Location of a Previously Announced Open Meeting (Washington, DC); Correction: In the Federal Register of June 29, 2005, in FR Doc. 05–12772, on page 37333, in the first column, the SUMMARY, DATES and ADDRESSES captions were corrected.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 07/08/05 P39491 - Notice of the 2005 Defense Base Closure and Realignment Commission—Open Meetings
Notice of the BRAC Commission—Open Meetings (Washington, DC) on July 18, 2005 from 8:30 a.m. to 11:30 a.m. and 1 p.m. to 3:30 p.m. at the Hart Senate Office Building. (Washington, DC) on July 19, 2005 from 1:30 p.m. to 5:30 p.m. at the Hart Senate Office Building.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 07/08/05 P39492 - Notice of the Defense Base Closure and Realignment Commission—Change to the Location of Previously Announced Open Meetings
Notice of the BRAC Commission—Change to the Location of a Previously Announced Open Meeting (New Orleans, LA); Correction: In the Federal Register of June 7, 2005, in FR Doc. 05–11237, on page 33128, in the second column, the SUMMARY; and ADDRESSES captions were corrected.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 07/08/05 P39492 - Notice of the 2005 Defense Base Closure and Realignment Commission—Open Meetings
BRAC Commission—Open Meeting (Los Angeles, CA) on July 14, 2005 from 1 p.m. to 4:30 p.m. at the Westchester High School Auditorium.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 07/20/05 P41691 - Notice of the Defense Base Closure and Realignment Commission—Change to the Date of Previously Announced Open Meetings
Notice of the BRAC Commission—Change to the Date of a Previously Announced Open Meeting (New Orleans, LA); Correction: In the Federal Register of June 7, 2005, in FR Doc. 05–11237, on page 33128, in the second column, the SUMMARY and ADDRESS captions were corrected.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 08/11/05 PP46818-46819 - Notice of the 2005 Defense Base Closure and Realignment Commission—Open Meetings
Notice of the BRAC Commission—Open Meetings: (Arlington, VA) on August 24, 25, 26 and 27, 2005 from 8 a.m. to 12 p.m., 1 p.m. to 5:30 p.m. and 7 p.m. to 10 p.m. on each day indicated at the Hyatt Regency Crystal City - (Washington, DC) on August 20, 2005 from 8:30 a.m. to 12 p.m. and 1:30 p.m. to 4:30 p.m. at Senate Hart Hearing Room. 216
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 08/18/05 P48547 - Notice of the 2005 Defense Base Closure and Realignment Commission—Open Meeting
Notice of the BRAC Commission—Open Meeting: (Washington, DC) on August 20, 2005 from 1:30 p.m. to 4:30 p.m. at Senate Hart Hearing Room 216.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Federal Register Notice 08/02/05 PP44327-44329 - Notice of the 2005 Defense Base Closure and Realignment Commission—Open Meetings
Notice of the BRAC Commission—Open Meetings: (Washington, DC) on August 11, 2005 from 1 p.m. to 4:30 p.m. at Senate Hart Hearing Room 216 - (Washington, DC) on August 11, 2005 from 8:30 a.m. to 11:30 a.m. at Senate Hart Hearing Room 216 - (Monterey, CA) on August 8, 2005 from 1 p.m. to 4 p.m. at the Monterey Convention Center - (Washington, DC) on August 4, 2005 from 1 p.m. to 2 p.m. at Senate Hart Hearing Room 216 - (Washington, DC) on August 10, 2005 from 8:30 a.m. to 12:30 p.m. at Senate Hart Hearing Room 216.
Date:
October 26, 2005
Creator:
unknown
Object Type:
Legal Document
System:
The UNT Digital Library
Non-Poisson Dichotomous Noise: Higher-Order Correlation Functions and Aging
This article discusses non-Poisson dichotomous noise and higher-order correlation functions and aging.
Date:
October 26, 2004
Creator:
Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & West, Bruce J.
Object Type:
Article
System:
The UNT Digital Library
PDV Probe Alignment Technique
This alignment technique was developed while performing heterodyne velocimetry measurements at LLNL. There are a few minor items needed, such as a white card with aperture in center, visible alignment laser, IR back reflection meter, and a microscope to view the bridge surface. The work was performed on KCP flyers that were 6 and 8 mils wide. The probes used were Oz Optics manufactured with focal distances of 42mm and 26mm. Both probes provide a spot size of approximately 80?m at 1550nm. The 42mm probes were specified to provide an internal back reflection of -35 to -40dB, and the probe back reflections were measured to be -37dB and -33dB. The 26mm probes were specified as -30dB and both measured -30.5dB. The probe is initially aligned normal to the flyer/bridge surface. This provides a very high return signal, up to -2dB, due to the bridge reflectivity. A white card with a hole in the center as an aperture can be used to check the reflected beam position relative to the probe and launch beam, and the alignment laser spot centered on the bridge, see Figure 1 and Figure 2. The IR back reflection meter is used to measure the dB return …
Date:
October 26, 2007
Creator:
Whitworth, T L; May, C M & Strand, O T
Object Type:
Report
System:
The UNT Digital Library
Green (2(omega)) Laser Beam propagation in high-temperature Hohlraum Plasmas
We demonstrate propagation and small backscatter losses of a frequency-doubled (2{omega}) laser beam interacting with inertial confinement fusion hohlraum plasmas. The electron temperature of 3.3 keV, approximately a factor of two higher than achieved in previous experiments with open geometry targets, approaches plasma conditions of high-fusion yield hohlraums. In this new temperature regime, we measure 2{omega} laser beam transmission approaching 80% with simultaneous backscattering losses of less than 10%. These findings suggests that good laser coupling into fusion hohlraums using 2{omega} light is possible.
Date:
October 26, 2007
Creator:
Niemann, C; Berger, R; Divol, L; Froula, D H; Jones, O S; Kirkwood, R K et al.
Object Type:
Article
System:
The UNT Digital Library
YUMMY: The Yucca Mountain MCNP-Library
None
Date:
October 26, 2004
Creator:
Alpan, FA
Object Type:
Report
System:
The UNT Digital Library
TOXECON RETROFIT FOR MERCURY AND MULTI-POLLUTANT CONTROL-ON THREE 90 MW COAL FIRED BOILERS
With the Nation's coal-burning utilities facing tighter controls on mercury pollutants, the U.S. Department of Energy is supporting projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by a particle control device along with the other solid material, primarily fly ash. We Energies has over 3,200 MW of coal-fired generating capacity and supports an integrated multi-emission control strategy for SO{sub 2}, NO{sub x} and mercury emissions while maintaining a varied fuel mix for electric supply. The primary goal of this project is to reduce mercury emissions from three 90 MW units that burn Powder River Basin coal at the We Energies Presque Isle Power Plant. Additional goals are to reduce nitrogen oxide (NO{sub x}), sulfur dioxide (SO{sub 2}), and particulate matter (PM) emissions, allow for reuse and sale of fly ash, demonstrate a reliable …
Date:
October 26, 2004
Creator:
Johnson, Richard E.
Object Type:
Report
System:
The UNT Digital Library
CSCAPES Institute
We report on the progress made by researchers of the CSCAPES Institute at Old Dominion University for the years 2007 and 2008 in the areas of research, software creation, education and training, and outreach activities.
Date:
October 26, 2008
Creator:
Pothen, Alex
Object Type:
Report
System:
The UNT Digital Library
An Approach Towards a Long-life, Microwave-assisted H- Ion Soucrefor Proton Drivers
This paper reports on experiments aimed at developing a new high-intensity H{sup -} ion source with long lifetime whose concept had recently been introduced. Starting from the motivation for this effort, several steps of the earlier development work are recapitulated, and the performance of the latest design variant is discussed in detail. The basic concept consists in coupling an ECR ion source to a standard SNS multi-cusp H{sup -} ion source that is driven by pulsed dc, rather than rf, power. As a key result, an electron beam of 1.5 A current has been extracted from the ECR discharge operating at 1.9 kW c. w. power, and a maximum discharge current of 17.5 A was achieved in the H{sup -} ion source. Production of H{sup -} ions, however could not yet been demonstrated in the one, preliminary, experiment conducted so far. The paper concludes by outlining further envisaged development steps for the plasma generator and an expansion towards a novel extraction system.
Date:
October 26, 2005
Creator:
Keller, R.; Regis, M.; Wallig, J.; Hahto, S.; Monroy, M.; Ratti, A. et al.
Object Type:
Article
System:
The UNT Digital Library
TECHNICAL BASIS DOCUMENT OF MARSSIM FIELD CALIBRATION FOR QUANTIFICATION OF CS-137 VOLUMETRICALLY CONTAMINATED SOILS IN THE BC CONTROLLED AREA USING 2 BY 2 SODIUM IODIDE DETECTORS
The purpose of this paper is to provide the Technical Basis and Documentation for Field Calibrations of radiation measurement equipment for use in the MARSSIM Seeping Surveys of the BC Controlled Area (BCCA). The Be Controlled Area is bounded on tt1e north by (but does not include) the BCCribs & Trenches and is bounded on the south by Army Loop Road. Parts of the BC Controlled Area are posted as a Contamination Area and the remainder is posted as a Soil Contamination Area. The area is approximately 13 square miles and divided into three zones (Zone A , Zone B. and Zone C). A map from reference 1 which shows the 3 zones is attached. The MARSSIM Scoping Surveys are intended 10 better identify the boundaries of the three zones based on the volumetric (pCi/g) contamination levels in the soil. The MARSSIM Field Calibration. reference 2. of radiation survey instrumentation will determine the Minimum Detectable Concentration (MDC) and an algorithm for converting counts to pCi/g. The instrumentation and corresponding results are not intended for occupational radiation protection decisions or for the release of property per DOE Order 5400.5.
Date:
October 26, 2007
Creator:
JL, PAPPIN
Object Type:
Report
System:
The UNT Digital Library
Estimate of Hanford Waste Rheology and Settling Behavior
The U.S. Department of Energy (DOE) Office of River Protection’s Waste Treatment and Immobilization Plant (WTP) will process and treat radioactive waste that is stored in tanks at the Hanford Site. Piping, pumps, and mixing vessels have been selected to transport, store, and mix the high-level waste slurries in the WTP. This report addresses the analyses performed by the Rheology Working Group (RWG) and Risk Assessment Working Group composed of Pacific Northwest National Laboratory (PNNL), Bechtel National Inc. (BNI), CH2M HILL, DOE Office of River Protection (ORP) and Yasuo Onishi Consulting, LLC staff on data obtained from documented Hanford waste analyses to determine a best-estimate of the rheology of the Hanford tank wastes and their settling behavior. The actual testing activities were performed and reported separately in referenced documentation. Because of this, many of the required topics below do not apply and are so noted.
Date:
October 26, 2007
Creator:
Poloski, Adam P.; Wells, Beric E.; Tingey, Joel M.; Mahoney, Lenna A.; Hall, Mark N.; Thomson, Scott L. et al.
Object Type:
Report
System:
The UNT Digital Library
Photon Production through Multi-step Processes Important in Nuclear Fluorescence Experiments
The authors present calculations describing the production of photons through multi-step processes occurring when a beam of gamma rays interacts with a macroscopic material. These processes involve the creation of energetic electrons through Compton scattering, photo-absorption and pair production, the subsequent scattering of these electrons, and the creation of energetic photons occurring as these electrons are slowed through Bremsstrahlung emission. Unlike single Compton collisions, during which an energetic photon that is scattered through a large angle loses most of its energy, these multi-step processes result in a sizable flux of energetic photons traveling at large angles relative to an incident photon beam. These multi-step processes are also a key background in experiments that measure nuclear resonance fluorescence by shining photons on a thin foil and observing the spectrum of back-scattered photons. Effective cross sections describing the production of backscattered photons are presented in a tabular form that allows simple estimates of backgrounds expected in a variety of experiments. Incident photons with energies between 0.5 MeV and 8 MeV are considered. These calculations of effective cross sections may be useful for those designing NRF experiments or systems that detect specific isotopes in well-shielded environments through observation of resonance fluorescence.
Date:
October 26, 2006
Creator:
Hagmann, C & Pruet, J
Object Type:
Article
System:
The UNT Digital Library
TECHNICAL BASIS DOCUMENT OF MARSSIM FIELD CALIBRATION FOR QUANTIFICATION OF CS-137 VOLUMETRICALLY CONTAMINTED SOILS IN THE BC CONTROLLED AREA USING A 4 BY 4 BY 16 INCH SODIUM IODIDE DETECTOR
The purpose of this paper is to provide the Technical Basis and Documentation for Field Calibrations of radiation measurement equipment for use in the MARSSIM Seeping Surveys of the BC Controlled Area (BCCA). The Be Controlled Area is bounded on tt1e north by (but does not include) the BCCribs & Trenches and is bounded on the south by Army Loop Road. Parts of the BC Controlled Area are posted as a Contamination Area and the remainder is posted as a Soil Contamination Area. The area is approximately 13 square miles and divided into three zones (Zone A , Zone B. and Zone C). A map from reference 1 which shows the 3 zones is attached. The MARSSIM Scoping Surveys are intended 10 better identify the boundaries of the three zones based on the volumetric (pCi/g) contamination levels in the soil. The MARSSIM Field Calibration. reference 2. of radiation survey instrumentation will determine the Minimum Detectable Concentration (MDC) and an algorithm for converting counts to pCi/g. The instrumentation and corresponding results are not intended for occupational radiation protection decisions or for the release of property per DOE Order 5400.5.
Date:
October 26, 2007
Creator:
JL, PAPPIN
Object Type:
Report
System:
The UNT Digital Library
Low doses of alpha particles do not induce sister chromatid exchanges in bystander Chinese hamster cells defective in homologous recombination
We reported previously that the homologous recombinational repair (HRR)-deficient Chinese hamster mutant cell line irs3 (deficient in the Rad51 paralog Rad51C) showed only a 50% spontaneous frequency of sister chromatid exchange (SCE) as compared to parental wild-type V79 cells. Furthermore, when irradiated with very low doses of alpha particles, SCEs were not induced in irs3 cells, as compared to a prominent bystander effect observed in V79 cells (Nagasawa et al., Radiat. Res. 164, 141-147, 2005). In the present study, we examined additional Chinese hamster cell lines deficient in the Rad51 paralogs Rad51C, Rad51D, Xrcc2, and Xrcc3 as well as another essential HRR protein, Brca2. Spontaneous SCE frequencies in non-irradiated wild-type cell lines CHO, AA8 and V79 were 0.33 SCE/chromosome, whereas two Rad51C-deficient cell lines showed only 0.16 SCE/chromosome. Spontaneous SCE frequencies in cell lines defective in Rad51D, Xrcc2, Xrcc3, and Brca2 ranged from 0.23-0.33 SCE/chromosome, 0-30% lower than wild-type cells. SCEs were induced significantly 20-50% above spontaneous levels in wild-type cells exposed to a mean dose of 1.3 mGy of alpha particles (<1% of nuclei traversed by an alpha particle). However, induction of SCEs above spontaneous levels was minimal or absent after {alpha}-particle irradiation in all of the HRR-deficient cell …
Date:
October 26, 2007
Creator:
Nagasawa, H; Wilson, P F; Chen, D J; Thompson, L H; Bedford, J S & Little, J B
Object Type:
Article
System:
The UNT Digital Library
The Role of Nuclear Motion in the Photo-Double Ionization ofMolecular Hydrogen
We examine the origin of recently observed variations with internuclear distance (R) of the fully differential cross sections for double ionization of aligned H2 by absorption of a single photon. Using the results of fully converged numerical solutions of the Schroedinger equation, we show that these variations arise primarily from pronounced differences in the R-dependence of the parallel and perpendicular components of the ionization amplitude. We also predict that R-dependences should be readily observable in the asymmetry parameter for photo-double ionization, even in experimental measurements that are not differential in the energy sharings between ejected photo-electrons.
Date:
October 26, 2006
Creator:
Horner, Daniel A.; Vanroose, Wim; Rescigno, Thomas N.; Martin,Fernando & McCurdy, C. William
Object Type:
Article
System:
The UNT Digital Library
A Site Wide Perspective on Uranium Geochemistry at the Hanford Site
Uranium (U) is an important risk-driving contaminant at the Hanford Site. Over 200,000 kg have been released to the vadose zone over the course of site operations, and a number of vadose zone and groundwater plumes containing the uranyl cation [UO22+, U(VI)] have been identified. U is recognized to be of moderate-to-high mobility, conditions dependent. The site is currently making decisions on several of these plumes with long-lasting implications, and others are soon to come. Uranium is one of nature’s most intriguing and chemically complex elements. The fate and transport of U(VI) has been studied over the long lifetime of the Hanford Site by various contractors, along with the Pacific Northwest National Laboratory (PNNL) and its collaborators. Significant research has more recently been contributed by the national scientific community with support from the U.S. Department of Energy’s (DOE) Office of Science through its Environmental Remediation Sciences Division (ERSD). This report represents a first attempt to integrate these findings into a cohesive view of the subsurface geochemistry of U at the Hanford Site. The objective is to inform all interested Hanford parties about the in-ground inventory of U and its geochemical behavior. This report also comments on the prospects for the …
Date:
October 26, 2007
Creator:
Zachara, John M.; Brown, Christopher F.; Christensen, J. N.; Davis, Jim A.; Dresel, P. Evan; Liu, Chongxuan et al.
Object Type:
Report
System:
The UNT Digital Library
Adaptive Dynamic Bayesian Networks
A discrete-time Markov process can be compactly modeled as a dynamic Bayesian network (DBN)--a graphical model with nodes representing random variables and directed edges indicating causality between variables. Each node has a probability distribution, conditional on the variables represented by the parent nodes. A DBN's graphical structure encodes fixed conditional dependencies between variables. But in real-world systems, conditional dependencies between variables may be unknown a priori or may vary over time. Model errors can result if the DBN fails to capture all possible interactions between variables. Thus, we explore the representational framework of adaptive DBNs, whose structure and parameters can change from one time step to the next: a distribution's parameters and its set of conditional variables are dynamic. This work builds on recent work in nonparametric Bayesian modeling, such as hierarchical Dirichlet processes, infinite-state hidden Markov networks and structured priors for Bayes net learning. In this paper, we will explain the motivation for our interest in adaptive DBNs, show how popular nonparametric methods are combined to formulate the foundations for adaptive DBNs, and present preliminary results.
Date:
October 26, 2007
Creator:
Ng, B M
Object Type:
Article
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 37, No. 452, Ed. 1 Thursday, October 26, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
October 26, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History