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2006 Molecular and Ionic Clusters Conference - to be held February 19-24, 2006 (open access)

2006 Molecular and Ionic Clusters Conference - to be held February 19-24, 2006

The Gordon Research Conference (GRC) on MOLECULAR & IONIC CLUSTERS was held at Crowne Plaza from 2/19/2006 thru 2/24/2006. The Conference was well-attended with 89 participants (attendees list attached). The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students. In designing the formal speakers program, emphasis was placed on current unpublished research and discussion of the future target areas in this field. There was a conscious effort to stimulate lively discussion about the key issues in the field today. Time for formal presentations was limited in the interest of group discussions. In order that more scientists could communicate their most recent results, poster presentation time was scheduled. Attached is a copy of the formal schedule and speaker program and the poster program. In addition to these formal interactions, ''free time'' was scheduled to allow informal discussions. Such discussions are fostering new collaborations and joint efforts in the field.
Date: July 31, 2006
Creator: Duncan, Michael A.
Object Type: Article
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 108, No. 104, Ed. 1 Monday, July 31, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 108, No. 104, Ed. 1 Monday, July 31, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: July 31, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
ANALYSIS OF THE LEACHING EFFICIENCY OF INHIBITED WATER AND TANK 23H SIMULANT IN REMOVING RESIDUES ON TANK 48H WALLS (open access)

ANALYSIS OF THE LEACHING EFFICIENCY OF INHIBITED WATER AND TANK 23H SIMULANT IN REMOVING RESIDUES ON TANK 48H WALLS

Solid residues on two sets of thermowell pipe samples from the D2 riser in SRS Tank 48H were characterized. The residue thickness was determined using the ASTM standard D 3483-05 and was found to be three order of magnitudes below the 1mm thickness estimated from an earlier video of the tank cooling coil inspection. The actual estimated thickness ranged from 4 to 20.4 microns. The mass per unit area ranged from 1 to 5.3 milligrams per square inch. The residues appear to consist primarily of potassium tetraphenylborate (39.8 wt% KTPB) and dried salt solution (33.5 wt% total of nitrates, nitrites and oxalate salts), although {approx}30% of the solid mass was not accounted for in the mass balance. No evidence of residue buildup was found inside the pipe, as expected. The residue leaching characteristics were measured by placing one pipe in inhibited water and one pipe in DWPF Recycle simulant. After soaking for less than 4 weeks, the inhibited water was 95.4% effective at removing the residue and the DWPF Recycle simulant was 93.5% effective. The surface appearance of the pipes after leaching tests appeared close to the clean shiny appearance of a new pipe. Total gamma counts of leachates averaged …
Date: July 31, 2006
Creator: Fondeur, F; Thomas02 White, T; Lawrence Oji, L; Chris Martino, C & Bill Wilmarth, B
Object Type: Report
System: The UNT Digital Library
Atmospheric Radioxenon Measurements in North Las Vegas, NV (open access)

Atmospheric Radioxenon Measurements in North Las Vegas, NV

PNNL deployed the ARSA radioxenon measurement system in North Las Vegas for two weeks in February and March 2006 for the purpose of measuring the radioxenon background at a level of sensitivity much higher than previously done in the vicinity of the NTS. The measurements establish what might be expected if future measurements are taken at NTS itself. The measurements are also relevant to test site readiness. A second detector, the PEMS, built and operated by DRI, was deployed in conjunction with the ARSA and contained a PIC, aerosol collection filters, and meteorological sensors. Originally, measurements were also to be performed at Mercury, NV on the NTS, but these were canceled due to initial equipment problems with the ARSA detector. Some of the radioxenon measurements detected 133Xe at levels up to 3 mBq/m3. This concentration of radioxenon is consistent with the observation of low levels of radioxenon emanating from distance nuclear reactors. Previous measurements in areas of high nuclear reactor concentration have shown similar results, but the western US, in general, does not have many nuclear reactors. Measurements of the wind direction indicate that the air carrying the radioxenon came from south of the detector and not from the NTS.
Date: July 31, 2006
Creator: Milbrath, Brian D.; Cooper, Matthew W.; Lidey, Lance S.; Bowyer, Ted W.; Hayes, James C.; McIntyre, Justin I. et al.
Object Type: Report
System: The UNT Digital Library
Basin Analysis and Petroleum System Characterization and Modeling, Interior Salt Basins, Central and Eastern Gulf of Mexico (open access)

Basin Analysis and Petroleum System Characterization and Modeling, Interior Salt Basins, Central and Eastern Gulf of Mexico

The principal research effort for Year 1 of Phase 2 (Concept Demonstration) of the project is Smackover petroleum system characterization and modeling. The necessary software applications are in the process of being acquired to accomplish this work. No major problems have been encountered to date, and the project is on schedule.
Date: July 31, 2006
Creator: Mancini, Ernest A.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 252, Ed. 1 Monday, July 31, 2006 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 85, No. 252, Ed. 1 Monday, July 31, 2006

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: July 31, 2006
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Beneficial Reuse of San Ardo Produced Water (open access)

Beneficial Reuse of San Ardo Produced Water

This DOE funded study was performed to evaluate the potential for treatment and beneficial reuse of produced water from the San Ardo oilfield in Monterey County, CA. The potential benefits of a successful full-scale implementation of this project include improvements in oil production efficiency and additional recoverable oil reserves as well as the addition of a new reclaimed water resource. The overall project was conducted in two Phases. Phase I identified and evaluated potential end uses for the treated produced water, established treated water quality objectives, reviewed regulations related to treatment, transport, storage and use of the treated produced water, and investigated various water treatment technology options. Phase II involved the construction and operation of a small-scale water treatment pilot facility to evaluate the process's performance on produced water from the San Ardo oilfield. Cost estimates for a potential full-scale facility were also developed. Potential end uses identified for the treated water include (1) agricultural use near the oilfield, (2) use by Monterey County Water Resources Agency (MCWRA) for the Salinas Valley Water Project or Castroville Seawater Intrusion Project, (3) industrial or power plant use in King City, and (4) use for wetlands creation in the Salinas Basin. All of …
Date: July 31, 2006
Creator: Liske, Robert A.
Object Type: Report
System: The UNT Digital Library
Bomb-Pulse Chlorine-36 at the Proposed Yucca Mountain Repository Horizon: An Investigation of Previous Conflicting Results and Collection of New Data (open access)

Bomb-Pulse Chlorine-36 at the Proposed Yucca Mountain Repository Horizon: An Investigation of Previous Conflicting Results and Collection of New Data

Previous studies Los Alamos National Laboratory (LANL) found elevated ratios of chlorine-36 to total chloride (36Cl/Cl) in samples of rock collected from the Exploratory Studies Facility (ESF) at Yucca Mountain (YM). The data were interpreted as an indication that fluids containing “bomb-pulse” 36Cl reached the repository horizon in the ~50 years since the peak period of above-ground nuclear testing. Due to the significance of 36Cl data to conceptual models of unsaturated zone flow, the United States Geological Survey (USGS) implemented a study to validate the LANL findings. The USGS drilled new boreholes at select locations across zones where bomb-pulse ratios had previously been identified. The drill cores were analyzed at Lawrence Livermore National Laboratory (LLNL). Because consensus was not reached between the USGS/LLNL and LANL on several fundamental points including the presence or absence of bomb-pulse 36Cl, an evaluation by the University of Nevada, Las Vegas (UNLV), was initiated. The overall objectives of the UNLV study were to investigate the source of the validation study’s conflicting results, and to obtain additional data on bomb-pulse isotopes at the repository horizon. UNLV engaged in discussions with previous investigators, reviewed reports, and analyzed archived samples. UNLV also collected new samples of rock from …
Date: July 31, 2006
Creator: Cizdziel, James
Object Type: Report
System: The UNT Digital Library
Campaign Finance: An Overview (open access)

Campaign Finance: An Overview

This report gives an overview of the concerns over financing federal elections campaigning. The contents include Campaign finance practices, related issues, and policy options to address campaign finance issues
Date: July 31, 2006
Creator: Cantor, Joseph E.
Object Type: Report
System: The UNT Digital Library
Climate Change: The European Union's Emissions Trading System (EU-ETS) (open access)

Climate Change: The European Union's Emissions Trading System (EU-ETS)

The European Union’s (EU’s) Emissions Trading System (ETS) is a cornerstone of the EU’s efforts to meet its obligation under the Kyoto Protocol. It covers more than 11,500 energy intensive facilities across the 25 EU member countries, including oil refineries, power plants over 20 megawatts (MW) in capacity, coke ovens, and iron and steel plants, along with cement, glass, lime, brick, ceramics, and pulp and paper installations. Covered entities emit about 45% of the EU’s carbon dioxide emissions. The trading program does not cover emissions of non-CO2 greenhouse gases, which account for about 20% of the EU’s total greenhouse gas emissions. A final consideration for the ETS is its suitability for directing long-term investment toward a low-carbon future — the ultimate goal of any climate change program.
Date: July 31, 2006
Creator: Parker, Larry
Object Type: Report
System: The UNT Digital Library
Coast Guard: Observations on the Preparation, Response, and Recovery Missions Related to Hurricane Katrina (open access)

Coast Guard: Observations on the Preparation, Response, and Recovery Missions Related to Hurricane Katrina

A letter report issued by the Government Accountability Office with an abstract that begins "Hurricane Katrina was one of the largest natural disasters in our nation's history. Significant federal, state, and local resources were mobilized to respond to the Hurricane Katrina disaster, including those of the U.S. Coast Guard. The Coast Guard played a key role in the planning, response, and recovery efforts for Hurricane Katrina in three mission areas: search and rescue, marine pollution response, and management of maritime commerce. This report discusses the activities undertaken by the Coast Guard, as well as the challenges and lessons learned as a result of the agency's efforts. More specifically, it focuses on (1) the factors that prepared the Coast Guard to perform these three mission areas in the aftermath of Hurricane Katrina; (2) the Coast Guard's response to Hurricane Katrina, the challenges it faced in performing its missions, and its efforts to mitigate these challenges; and (3) the implications and lessons learned, as identified by the Coast Guard, regarding the effect of Hurricane Katrina surge operations on its people, assets, financial resources, and operations. To determine the Coast Guard's preparation factors, the challenges and lessons learned we interviewed officials responsible for …
Date: July 31, 2006
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Comparison of LaBr3:Ce and NaI(Tl) Scintillators for Radio-Isotope Identification Devices (open access)

Comparison of LaBr3:Ce and NaI(Tl) Scintillators for Radio-Isotope Identification Devices

Lanthanum halide (LaBr3:Ce) scintillators offer significantly better resolution (<3 percent at 662 kilo-electron volt [keV]) relative to sodium iodide (NaI(Tl)) and have recently become commercially available in sizes large enough for the hand-held radio-isotope identification device (RIID) market. There are drawbacks to lanthanum halide detectors, however. These include internal radioactivity that contributes to spectral counts and a low-energy response that can cause detector resolution to be lower than that of NaI(Tl) below 100 keV. To study the potential of this new material for RIIDs, we performed a series of measurements comparing a 1.5?1.5 inch LaBr?3:Ce detector with an Exploranium GR 135 RIID, which contains a 1.5-2.2 inch NaI(Tl) detector. Measurements were taken for short time frames, as typifies RIID usage. Measurements included examples of naturally occurring radioactive material (NORM), typically found in cargo, and special nuclear materials. Some measurements were noncontact, involving short distances or cargo shielding scenarios. To facilitate direct comparison, spectra from the different detectors were analyzed with the same isotope identification software (ORTEC ScintiVision TM). In general, the LaBr3:Ce detector was able to find more peaks and find them faster than the NaI(Tl) detector. To the same level of significance, the LaBr3:Ce detector was usually two to …
Date: July 31, 2006
Creator: Milbrath, Brian D.; Choate, Bethany J.; Fast, Jim E.; Hensley, Walter K.; Kouzes, Richard T. & Schweppe, John E.
Object Type: Report
System: The UNT Digital Library
The Compassion Capital Fund: Brief Facts and Current Developments (open access)

The Compassion Capital Fund: Brief Facts and Current Developments

This report will be updated to reflect new data and budget figures, major program changes, and legislation.
Date: July 31, 2006
Creator: Richardson, Joe
Object Type: Report
System: The UNT Digital Library
Corrosion of Metal Inclusions In Bulk Vitrification Waste Packages (open access)

Corrosion of Metal Inclusions In Bulk Vitrification Waste Packages

The primary purpose of the work reported here is to analyze the potential effect of the release of technetium (Tc) from metal inclusions in bulk vitrification waste packages once they are placed in the Integrated Disposal Facility (IDF). As part of the strategy for immobilizing waste from the underground tanks at Hanford, selected wastes will be immobilized using bulk vitrification. During analyses of the glass produced in engineering-scale tests, metal inclusions were found in the glass product. This report contains the results from experiments designed to quantify the corrosion rates of metal inclusions found in the glass product from AMEC Test ES-32B and simulations designed to compare the rate of Tc release from the metal inclusions to the release of Tc from glass produced with the bulk vitrification process. In the simulations, the Tc in the metal inclusions was assumed to be released congruently during metal corrosion as soluble TcO4-. The experimental results and modeling calculations show that the metal corrosion rate will, under all conceivable conditions at the IDF, be dominated by the presence of the passivating layer and corrosion products on the metal particles. As a result, the release of Tc from the metal particles at the surfaces …
Date: July 31, 2006
Creator: Bacon, Diana H.; Pierce, Eric M.; Wellman, Dawn M.; Strachan, Denis M. & Josephson, Gary B.
Object Type: Report
System: The UNT Digital Library
CORROSION STUDY OF AMORPHOUS METAL RIBBONS (open access)

CORROSION STUDY OF AMORPHOUS METAL RIBBONS

Corrosion costs the Department of Defense billions of dollars every year, with an immense quantity of material in various structures undergoing corrosion. For example, in addition to fluid and seawater piping, ballast tanks, and propulsions systems, approximately 345 million square feet of structure aboard naval ships and crafts require costly corrosion control measures. The use of advanced corrosion-resistant materials to prevent the continuous degradation of this massive surface area would be extremely beneficial. The potential advantages of amorphous metals have been recognized for some time [Latanison 1985]. Iron-based corrosion-resistant, amorphous-metal coatings under development may prove important for maritime applications [Farmer et al. 2005]. Such materials could also be used to coat the entire outer surface of containers for the transportation and long-term storage of spent nuclear fuel, or to protect welds and heat affected zones, thereby preventing exposure to environments that might cause stress corrosion cracking [Farmer et al. 1991, 2000a, 2000b]. In the future, it may be possible to substitute such high-performance iron-based materials for more-expensive nickel-based alloys, thereby enabling cost savings in a wide variety of industrial applications. It should be noted that thermal-spray ceramic coatings have also been investigated for such applications [Haslam et al. 2005]. This …
Date: July 31, 2006
Creator: Lian, T; Day, S D & Farmer, J C
Object Type: Report
System: The UNT Digital Library
Cross-Roll Flow Forming of ODS Alloy Heat Exchanger Tubes For Hoop Creep Enhancement, Quarterly Technical Progress Report: April-June 2006 (open access)

Cross-Roll Flow Forming of ODS Alloy Heat Exchanger Tubes For Hoop Creep Enhancement, Quarterly Technical Progress Report: April-June 2006

None
Date: July 31, 2006
Creator: Kad, Bimal K.
Object Type: Report
System: The UNT Digital Library
Development of a 2D Vlasov Solver for Single-Pass Systems (open access)

Development of a 2D Vlasov Solver for Single-Pass Systems

Direct numerical methods for solving the Vlasov equationoffer some advantages over macroparticle simulations, as they do notsuffer from the numerical noise inherent in using a number ofmacroparticles smaller than the bunch population. Unfortunately thesemethods are more time-consuming and generally considered impractical in afull 6D phase space. However, in a lower-dimension phase space they maybecome attractive if the beam dynamics is sensitive to the presence ofsmall charge-density fluctuations and a high resolution is needed. Inthis paper we present a 2D Vlasov solver for studying the longitudinalbeam dynamics in single-pass systems of interest for X-FEL's, wherecharacterization of the microbunching instability is of particularrelevance. The solver includes a model to account for the smearing effectof a finite horizontal emittance on microbuncing. We explore the effectof space charge and coherent synchrotron radiation (CSR). The numericalsolutions are compared with results from linear theory and good agreementis found in the regime where linear theory applies.
Date: July 31, 2006
Creator: Venturini, Marco; Warnock, Robert & Zholents, Alexander
Object Type: Report
System: The UNT Digital Library
Development of a Performance-Based Industrial Energy Efficiency Indicator for Corn Refining Plants. (open access)

Development of a Performance-Based Industrial Energy Efficiency Indicator for Corn Refining Plants.

Organizations that implement strategic energy management programs have the potential to achieve sustained energy savings if the programs are carried out properly. A key opportunity for achieving energy savings that plant managers can take is to determine an appropriate level of energy performance by comparing their plant's performance with that of similar plants in the same industry. Manufacturing facilities can set energy efficiency targets by using performance-based indicators. The U.S. Environmental Protection Agency (EPA), through its ENERGY STAR{reg_sign} program, has been developing plant energy performance indicators (EPIs) to encourage a variety of U.S. industries to use energy more efficiently. This report describes work with the corn refining industry to provide a plant-level indicator of energy efficiency for facilities that produce a variety of products--including corn starch, corn oil, animal feed, corn sweeteners, and ethanol--for the paper, food, beverage, and other industries in the United States. Consideration is given to the role that performance-based indicators play in motivating change; the steps needed to develop indicators, including interacting with an industry to secure adequate data for an indicator; and the actual application and use of an indicator when complete. How indicators are employed in the EPA's efforts to encourage industries to voluntarily …
Date: July 31, 2006
Creator: Boyd, G. A. & Sciences, Decision and Information
Object Type: Report
System: The UNT Digital Library
The Development of Low-Cost Integrated Composite Seal for SOFC: Materials and Design Methodologies (open access)

The Development of Low-Cost Integrated Composite Seal for SOFC: Materials and Design Methodologies

This report summarizes the work conducted by UConn SOFC seal development team during the Phase I program and no cost extension. The work included composite seal sample fabrication, materials characterizations, leak testing, mechanical strength testing, chemical stability study and acoustic-based diagnostic methods. Materials characterization work revealed a set of attractive material properties including low bulk permeability, high electrical resistivity, good mechanical robustness. Composite seal samples made of a number of glasses and metallic fillers were tested for sealing performance under steady state and thermal cycling conditions. Mechanical testing included static strength (pull out) and interfacial fracture toughness measurements. Chemically stability study evaluated composite seal material stability after aging at 800 C for 168 hrs. Acoustic based diagnostic test was conducted to help detect and understand the micro-cracking processes during thermal cycling test. The composite seal concept was successfully demonstrated and a set of material (coating composition & fillers) were identified to have excellent thermal cycling performance.
Date: July 31, 2006
Creator: Huang, Xinyu; Ridgeway, Kristoffer; Narasimhan, Srivatsan; Timin, Serg; Huang, Wei; Ozevin, Didem et al.
Object Type: Report
System: The UNT Digital Library
Elastic electron scattering from formic acid (open access)

Elastic electron scattering from formic acid

Following our earlier study on the dynamics of low energy electron attachment to formic acid, we report the results of elastic low-energy electron collisions with formic acid. Momentum transfer and angular differential cross sections were obtained by performing fixed-nuclei calculations employing the complex Kohn variational method. We make a brief description of the technique used to account for the polar nature of this polyatomic target and compare our results with available experimental data.
Date: July 31, 2006
Creator: Trevisan, Cynthia S.; Orel, Ann E. & Rescigno, Thomas N.
Object Type: Article
System: The UNT Digital Library
Elastic-Wavefield Seismic Stratigraphy: A New Seismic Imaging Technology (open access)

Elastic-Wavefield Seismic Stratigraphy: A New Seismic Imaging Technology

The purpose of our research has been to develop and demonstrate a seismic technology that will provide the oil and gas industry a better methodology for understanding reservoir and seal architectures and for improving interpretations of hydrocarbon systems. Our research goal was to expand the valuable science of seismic stratigraphy beyond the constraints of compressional (P-P) seismic data by using all modes (P-P, P-SV, SH-SH, SV-SV, SV-P) of a seismic elastic wavefield to define depositional sequences and facies. Our objective was to demonstrate that one or more modes of an elastic wavefield may image stratal surfaces across some stratigraphic intervals that are not seen by companion wave modes and thus provide different, but equally valid, information regarding depositional sequences and sedimentary facies within that interval. We use the term elastic wavefield stratigraphy to describe the methodology we use to integrate seismic sequences and seismic facies from all modes of an elastic wavefield into a seismic interpretation. We interpreted both onshore and marine multicomponent seismic surveys to select the data examples that we use to document the principles of elastic wavefield stratigraphy. We have also used examples from published papers that illustrate some concepts better than did the multicomponent seismic data …
Date: July 31, 2006
Creator: Hardage, Bob A.; Backus, Milo M.; DeAngelo, Michael V.; Fomel, Sergey; Fouad, Khaled; Graebner, Robert J. et al.
Object Type: Report
System: The UNT Digital Library
[Email from Shannon Bailey to officers and board members about meeting] (open access)

[Email from Shannon Bailey to officers and board members about meeting]

Email from Shannon Bailey to officers and board members on July 31, 2006 discussing a TSDC Board of Directors meeting on August 26, 2006.
Date: July 31, 2006
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Embedded Optical Sensors for Thermal Barrier Coatings (open access)

Embedded Optical Sensors for Thermal Barrier Coatings

The third year of this program on developing embedded optical sensors for thermal barrier coatings has been devoted to two principal topics: (i) continuing the assessment of the long-term, thermal cycle stability of the Eu{sup 3+} doped 8YSZ temperature sensor coatings, and (ii) improving the fiber-optic based luminescence detector system. Following the earlier, preliminary findings, it has been found that not only is the luminescence from the sensors not affected by prolonged thermal cycling, even after 195 hours at 1425 C, but the variation in luminescence lifetime with temperature remains unchanged. As the temperature of 1425 C is much higher than present engines attain or even planned in the foreseeable future, our findings indicate that the Eu{sup 3+} doped thermal barrier coating sensors are very robust and have the potential of being stable throughout the life of coatings. Investigation of Eu{sup 3+} doped coatings prepared by plasma-spraying exhibited the same luminescence characteristics as those prepared by electron-beam evaporation. This is of major significance since thermal barrier coatings can be prepared by both process technologies. A fiber-optic based luminescence system has been constructed in which the hottest section of fiber operates to at least 1250 C.
Date: July 31, 2006
Creator: Clarke, David R.
Object Type: Report
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 109th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 109th Congress: Conflicting Values and Difficult Choices

None
Date: July 31, 2006
Creator: Buck, Eugene H.; Corn, M. Lynne; Sheikh, Pervaze A.; Baldwin, Pamela & Meltz, Robert
Object Type: Report
System: The UNT Digital Library