Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Juveniles, 2007-2008 Report of Research. (open access)

Monitoring the Migrations of Wild Snake River Spring/Summer Chinook Salmon Juveniles, 2007-2008 Report of Research.

This report provides results from an ongoing project to monitor the migration behavior and survival of wild juvenile spring/summer Chinook salmon in the Snake River Basin. Data reported is from detections of PIT tagged fish during late summer 2007 through mid-2008. Fish were tagged in summer 2007 by the National Marine Fisheries Service (NMFS) in Idaho and by the Oregon Department of Fish and Wildlife (ODFW) in Oregon. Our analyses include migration behavior and estimated survival of fish at instream PIT-tag monitors and arrival timing and estimated survival to Lower Granite Dam. Principal results from tagging and interrogation during 2007-2008 are listed below: (1) In July and August 2007, we PIT tagged and released 7,390 wild Chinook salmon parr in 12 Idaho streams or sample areas. (2) Overall observed mortality from collection, handling, tagging, and after a 24-hour holding period was 1.4%. (3) Of the 2,524 Chinook salmon parr PIT tagged and released in Valley Creek in summer 2007, 218 (8.6%) were detected at two instream PIT-tag monitoring systems in lower Valley Creek from late summer 2007 to the following spring 2008. Of these, 71.6% were detected in late summer/fall, 11.9% in winter, and 16.5% in spring. Estimated parr-to-smolt survival …
Date: May 26, 2009
Creator: Achord, Stephen; Sandford, Benjamin P. & Hockersmith, Eric E.
Object Type: Report
System: The UNT Digital Library
Waste and Solvent Composition Limits for Modular Caustic-Side Solvent Extraction Unit (MCU) (open access)

Waste and Solvent Composition Limits for Modular Caustic-Side Solvent Extraction Unit (MCU)

This study examined waste feed and solvent limits for the Modular Caustic-Side Solvent Extraction Unit (MCU) currently being designed and built at the Savannah River Site (SRS) to remove cesium from highly alkaline radioactive waste. The study involved proposing ranges for 12 waste feed components (i.e., Na{sup +}, K{sup +}, Cs{sup +}, OH{sup -}, NO{sub 3}{sup -}, NO{sub 2}{sup -}, Cl{sup -}, F{sup -}, SO{sub 4}{sup 2-}, PO{sub 4}{sup 3-}, and CO{sub 3}{sup 2-}, and AlO{sub 2}{sup -}) through a compilation of SRS waste data. Statistical design methods were used to generate numerous wastes with varying compositions from the proposed ranges. An Oak Ridge National Laboratory (ORNL) model called SXFIT was used to predict the cesium extraction distribution coefficients (D-values) between the organic (solvent) phase and the aqueous waste phase using the waste component concentrations as inputs. The D-values from the SXFIT model were used as input along with MCU base case process parameters to a SASSE (Spreadsheet Algorithm for Stagewise Solvent Extraction) model to calculate final cesium concentrations for the MCU. The SASSE model was developed at Argonne National Laboratory (ANL). The SXFIT D-value and the waste component concentration data were used to develop a handier alternative model (neural …
Date: May 26, 2005
Creator: Adu-Wusu, Kofi; Waler, Douglas D. & Edwards, Thomas B
Object Type: Report
System: The UNT Digital Library
Morocco-U.S. Free Trade Agreement (open access)

Morocco-U.S. Free Trade Agreement

The United States and Morocco reached agreement on March 2, 2004, to create a free trade agreement (FTA). The FTA is intended to strengthen bilateral ties, boost trade and investment flows, and bolster Morocco’s position as a moderate Arab state. More than 95% of bilateral trade in consumer and industrial products will become duty-free upon entry into force of the agreement. The Senate approved implementing legislation (S. 2677) on July 2, 2004, by a vote of 85-13 and the House approved identical legislation (H.R. 4842) on July 22, 2004, by a vote of 323-99. The next day, the Senate passed House approved H.R. 4842 without amendment by unanimous consent. The legislation was signed by President Bush into law (P.L.108-302) on August 3, 2004. While the FTA was initially scheduled to be implemented on January 1, 2005, it is now expected to go into effect on July 1, 2005.
Date: May 26, 2005
Creator: Ahearn, Raymond J.
Object Type: Report
System: The UNT Digital Library
Undulator-Based Production of Polarized Positrons (open access)

Undulator-Based Production of Polarized Positrons

None
Date: May 26, 2009
Creator: Alexander, Gideon; Barley, John; Batygin, Yuri; Berridge, Steven; Bharadwaj, Vinod; Bower, Gary et al.
Object Type: Article
System: The UNT Digital Library
Vestibule and Cask Preparation Mechanical Handling Calculation (open access)

Vestibule and Cask Preparation Mechanical Handling Calculation

The scope of this document is to develop the size, operational envelopes, and major requirements of the equipment to be used in the vestibule, cask preparation area, and the crane maintenance area of the Fuel Handling Facility. This calculation is intended to support the License Application (LA) submittal of December 2004, in accordance with the directive given by DOE correspondence received on the 27th of January 2004 entitled: ''Authorization for Bechtel SAIC Company L.L.C. to Include a Bare Fuel Handling Facility and Increased Aging Capacity in the License Application, Contract Number DE-AC28-01R W12101'' (Ref. 167124). This correspondence was appended by further correspondence received on the 19th of February 2004 entitled: ''Technical Direction to Bechtel SAIC Company L.L. C. for Surface Facility Improvements, Contract Number DE-AC28-01R W12101; TDL No. 04-024'' (Ref. 16875 1). These documents give the authorization for a Fuel Handling Facility to be included in the baseline. The limitations of this preliminary calculation lie within the assumptions of section 5 , as this calculation is part of an evolutionary design process.
Date: May 26, 2004
Creator: Ambre, N.
Object Type: Report
System: The UNT Digital Library
Post-remediation biomonitoring of pesticides and other contaminants in marine waters and sediment near the United Heckathorn Superfund Site, Richmond, California (open access)

Post-remediation biomonitoring of pesticides and other contaminants in marine waters and sediment near the United Heckathorn Superfund Site, Richmond, California

Marine sediment remediation at the United Heckathorn Superfund Site was completed in April 1997. Water and mussel tissues were sampled in February 1999 from four stations near Lauritzen Canal in Richmond, California, for Year 2 of post-remediation monitoring of marine areas near the United Heckathorn Site. Dieldrin and dichlorodiphenyl trichloroethane (DDT) were analyzed in water samples, tissue samples from resident mussels, and tissue samples from transplanted mussels deployed for 4 months. Concentrations of dieldrin and total DDT in water and total DDT in tissue were compared with Year 1 of post-remediation monitoring, and with preremediation data from the California State Mussel Watch program (tissues) and the Ecological Risk Assessment for the United Heckathorn Superfund Site (tissues and water). Mussel tissues were also analyzed for polychlorinated biphenyls (PCB), which were detected in sediment samples. Chlorinated pesticide concentrations in water samples were similar to preremediation levels and did not meet remediation goals. Mean dieidrin concentrations in water ranged from 0.62 rig/L to 12.5 ng/L and were higher than the remediation goal (0.14 ng/L) at all stations. Mean total DDT concentrations in water ranged from 14.4 ng/L to 62.3 ng/L and exceeded the remediation goal (0.59 ng/L) at all stations. The highest concentrations …
Date: May 26, 2000
Creator: Antrim, LD & Kohn, NP
Object Type: Report
System: The UNT Digital Library
Post-Remediation Biomonitoring of Pesticides and Other Contaminants in Marine Waters and Sediment Near the United Heckathorn Superfund Site, Richmond, California (open access)

Post-Remediation Biomonitoring of Pesticides and Other Contaminants in Marine Waters and Sediment Near the United Heckathorn Superfund Site, Richmond, California

Post-Remediation Biomonitoring of Pesticides and Other Contaminants in Marine Waters and Sediment Near the United Heckathorn Superfund Site, Richmond, California
Date: May 26, 2000
Creator: Antrim, Lyle D. & Kohn, Nancy P.
Object Type: Report
System: The UNT Digital Library
Time-dependent amplitude analysis of $B^0 \to K^0_S\pi^ pi^-$ (open access)

Time-dependent amplitude analysis of $B^0 \to K^0_S\pi^ pi^-$

In this paper we present results from a time-dependent amplitude analysis of the B{sup 0} {yields} K{sup 0}{sub s}{pi}{sup +}{pi}{sup -} decay. In Sec. II we describe the time-dependent DP formalism, and introduce the signal parameters that are extracted in the fit to data. In Sec. III we briefly describe the BABAR detector and the data set. In Sec. IV, we explain the selection requirements used to obtain the signal candidates and suppress backgrounds. In Sec. V we describe the fit method and the approach used to control experimental effects such as resolution. In Sec. VI we present the results of the fit, and extract parameters relevant to the contributing intermediate resonant states. In Sec. VII we discuss systematic uncertainties in the results, and finally we summarize the results in Sec. VIII.
Date: May 26, 2009
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
Non-Destructive Evaluation of Thermal Spray Coating Interface Quality by Eddy Current Method (open access)

Non-Destructive Evaluation of Thermal Spray Coating Interface Quality by Eddy Current Method

Thermal spray coating is usually applied through directing molten or softened particles at very high velocities onto a substrate. An eddy current non-destructive inspection technique is presented here for thermal spray coating interface quality characterization. Several high-velocity-oxy-fuel (HVOF) coated steel plates were produced with different surface preparation conditions before applying the coating, e.g., grit-blasted surface, wire-brush cleaned surface, and a dirty surface. A quad-frequency eddy current probe was used to manually scan over the coating surface to evaluate the bonding quality. Experimental results show that the three surface preparation conditions can be successfully differentiated by looking into the impedance difference observed from the eddy current probe. The measurement is fairly robust and consistent. More specimens are also prepared with variations of process parameters, such as spray angle, stand-off distance, and application of corrosion protective sealant, etc. They are blindly tested to evaluate the reliability of the eddy current system. Quantitative relations between the coating bond strength and the eddy current response are also established with the support of destructive testing. This non-contact, non-destructive, easy to use technique has the potential for evaluating the coating quality immediately after its application so that any defects can be corrected immediately.
Date: May 26, 2006
Creator: B.Mi; Zhao, X. & Bayles, R.
Object Type: Report
System: The UNT Digital Library
Neurological Diagnostic Accelerometer (open access)

Neurological Diagnostic Accelerometer

None
Date: May 26, 2000
Creator: Balls, J.D.
Object Type: Report
System: The UNT Digital Library
Physics Benchmarks for the ILC Detectors (open access)

Physics Benchmarks for the ILC Detectors

None
Date: May 26, 2006
Creator: Battaglia, M.; /UC, Berkeley /LBL, Berkeley; Barklow, T.; Peskin, M.; /SLAC; Okada, Y. et al.
Object Type: Report
System: The UNT Digital Library
Ambient-Temperature Passive Magnetic Bearings for Flywheel Energy Storage Systems (open access)

Ambient-Temperature Passive Magnetic Bearings for Flywheel Energy Storage Systems

Based on prior work at the Lawrence Livermore National Laboratory ambient-temperature passive magnetic bearings are being adapted for use in high-power flywheel energy storage systems developed at the Trinity Flywheel Power company. En route to this goal specialized test stands have been built and computer codes have been written to aid in the development of the component parts of these bearing systems. The Livermore passive magnetic bearing system involves three types of elements, as follows: (1) Axially symmetric levitation elements, energized by permanent magnets., (2) electrodynamic ''stabilizers'' employing axially symmetric arrays of permanent magnet bars (''Halbach arrays'') on the rotating system, interacting with specially wound electrically shorted stator circuits, and, (3) eddy-current-type vibration dampers, employing axially symmetric rotating pole assemblies interacting with stationary metallic discs. The theory of the Livermore passive magnetic bearing concept describes specific quantitative stability criteria. The satisfaction of these criteria will insure that, when rotating above a low critical speed, a bearing system made up of the three elements described above will be dynamically stable. That is, it will not only be stable for small displacements from equilibrium (''Earnshaw-stable''), but will also be stable against whirl-type instabilities of the types that can arise from displacement-dependent drag …
Date: May 26, 2000
Creator: Bender, D. & Post, R.
Object Type: Article
System: The UNT Digital Library
Intelligence Issues for Congress (open access)

Intelligence Issues for Congress

This report includes information regarding intelligence issues for Congress. The intelligence community, ongoing congressional concerns, and issues in the 109th Congress are among topics discussed in this report.
Date: May 26, 2006
Creator: Best, Richard A., Jr.
Object Type: Report
System: The UNT Digital Library
Relationships between deformation and microstructure evolution and minimizing surface roughness after BCP processing in RRR Nb cavitites (open access)

Relationships between deformation and microstructure evolution and minimizing surface roughness after BCP processing in RRR Nb cavitites

Two strategies for improving the surface finish of niobium sheet used in superconducting radio frequency cavities were examined, using slices of single (or large-grain) material from an ingot, and equal channel angle extrusion (ECAE) preprocessing of ingot material to achieve a uniform and small grain size prior to subsequent rolling. The effect of these two processing paths on final microstructure, texture, and surface finish are discussed.
Date: May 26, 2009
Creator: Bieler, T. R.; Baars, D.; Hartwig, K. T.; Compton, C. & Grimm, T. L.
Object Type: Report
System: The UNT Digital Library
Afghanistan: Narcotics and U.S. Policy (open access)

Afghanistan: Narcotics and U.S. Policy

This report describes the structure and development of the narcotics trade in Afghanistan and explores its relevance to Afghan, U.S., and international security interests, including the 9/11 Commission’s recommendation that the United States make a long term commitment to the stability and security of Afghanistan. The report provides current statistical information on the opium trade, profiles its various participants, explores alleged narco-terrorist linkages, and reviews the U.S. and international policy response since late 2001. The report also considers current policy debates regarding the role of the U.S. military in future counternarcotics operations in Afghanistan; planned opium poppy eradication; and funding issues for Congress.
Date: May 26, 2005
Creator: Blanchard, Christopher M.
Object Type: Report
System: The UNT Digital Library
Air Force FB-22 Bomber Concept (open access)

Air Force FB-22 Bomber Concept

The Air Force has expressed interest in developing a bomber variant of the F/A-22 Raptor to “bridge the gap” between today’s bombers and a follow-on bomber in 2037. Questions exist regarding the FB-22’s feasibility, cost, and combat potential.
Date: May 26, 2004
Creator: Bolkcom, Christopher
Object Type: Report
System: The UNT Digital Library
RHIZOSPHERE MICROBIOLOGY OF CHLORINATED ETHENE CONTAMINATED SOILS: EFFECTS ON PHOSPHOLIPID FATTY ACID CONTENT (open access)

RHIZOSPHERE MICROBIOLOGY OF CHLORINATED ETHENE CONTAMINATED SOILS: EFFECTS ON PHOSPHOLIPID FATTY ACID CONTENT

Microbial degradation of chlorinated ethenes (CE) in rhizosphere soils was investigated at seepline areas impacted by CE plumes. Successful bioremediation of CE in rhizosphere soils is dependent on microbial activity, soil types, plant species, and groundwater CE concentrations. Seepline soils were exposed to trichloroethylene (TCE) and perchloroethylene (PCE) in the 10-50 ppb range. Greenhouse soils were exposed to 2-10 ppm TCE. Plants at the seepline were poplar and pine while the greenhouse contained sweet gum, willow, pine, and poplar. Phospholipid fatty acid (PLFA) analyses were performed to assess the microbial activity in rhizosphere soils. Biomass content was lowest in the nonvegetated control soil and highest in the Sweet Gum soil. Bacterial rhizhosphere densities, as measured by PLFA, were similar in different vegetated soils while fungi biomass was highly variable. The PLFA soil profiles showed diverse microbial communities primarily composed of Gram-negative bacteria. Adaptation of the microbial community to CE was determined by the ratio of {omega}7t/{omega}7c fatty acids. Ratios (16:1{omega}7v16:1{omega}7c and 18:l{omega}7t/18:1{omega}7c) greater than 0.1 were demonstrated in soils exposed to higher CE concentrations (10-50 ppm), indicating an adaptation to CE resulting in decreased membrane permeability. Ratios of cyclopropyl fatty acids showed that the vegetated control soil sample contained the …
Date: May 26, 2005
Creator: Brigmon, R. L.; Stanhopc, A.; Franck, M. M.; McKinsey, P. C. & Berry, C. J.
Object Type: Article
System: The UNT Digital Library
Consular Identification Cards: Domestic and Foreign Policy Implications, the Mexican Case, and Related Legislation (open access)

Consular Identification Cards: Domestic and Foreign Policy Implications, the Mexican Case, and Related Legislation

The debate about consular identification cards in the United States has centered around the matrícula consular, the consular identification card issued by Mexican consulates to Mexican citizens in the United States. In May 2003, the Treasury Department issued regulations allowing acceptance of the cards as proof of identity for the purpose of opening a bank account, and the cards are accepted for other purposes as well, including issuance of drivers’ licenses.
Date: May 26, 2005
Creator: Bruno, Andorra & Storrs, K. Larry
Object Type: Report
System: The UNT Digital Library
Hydrogen Production in Radioactive Solutions in the Defense Waste Processing Facility (open access)

Hydrogen Production in Radioactive Solutions in the Defense Waste Processing Facility

In the radioactive slurries and solutions to be processed in the Defense Waste Processing Facility (DWPF), hydrogen will be produced continuously by radiolysis. This production results from alpha, beta, and gamma rays from decay of radionuclides in the slurries and solutions interacting with the water. More than 1000 research reports have published data concerning this radiolytic production. The results of these studies have been reviewed in a comprehensive monograph. Information about radiolytic hydrogen production from the different process tanks is necessary to determine air purge rates necessary to prevent flammable mixtures from accumulating in the vapor spaces above these tanks. Radiolytic hydrogen production rates are usually presented in terms of G values or molecules of hydrogen produced per 100ev of radioactive decay energy absorbed by the slurry or solution. With the G value for hydrogen production, G(H2), for a particular slurry and the concentrations of radioactive species in that slurry, the rate of H2 production for that slurry can be calculated. An earlier investigation estimated that the maximum rate that hydrogen could be produced from the sludge slurry stream to the DWPF is with a G value of 0.45 molecules per 100ev of radioactive decay energy sorbed by the slurry.
Date: May 26, 2004
Creator: CRAWFORD, CHARLES L.
Object Type: Report
System: The UNT Digital Library
Hydrogen Production in Radioactive Solutions in the Defense Waste Processing Facility (open access)

Hydrogen Production in Radioactive Solutions in the Defense Waste Processing Facility

In the radioactive slurries and solutions to be processed in the Defense Waste Processing Facility (DWPF), hydrogen will be produced continuously by radiolysis. This production results from alpha, beta, and gamma rays from decay of radionuclides in the slurries and solutions interacting with the water. More than 1000 research reports have published data concerning this radiolytic production. The results of these studies have been reviewed in a comprehensive monograph. Information about radiolytic hydrogen production from the different process tanks is necessary to determine air purge rates necessary to prevent flammable mixtures from accumulating in the vapor spaces above these tanks. Radiolytic hydrogen production rates are usually presented in terms of G values or molecules of hydrogen produced per 100ev of radioactive decay energy absorbed by the slurry or solution. With the G value for hydrogen production, G(H2), for a particular slurry and the concentrations of radioactive species in that slurry, the rate of H2 production for that slurry can be calculated. An earlier investigation estimated that the maximum rate that hydrogen could be produced from the sludge slurry stream to the DWPF is with a G value of 0.45 molecules per 100ev of radioactive decay energy sorbed by the slurry.
Date: May 26, 2004
Creator: CRAWFORD, CHARLES L.
Object Type: Report
System: The UNT Digital Library
Hydrogen Generation by Radiolysis of Tetraphenylborate Solutions and Slurries (open access)

Hydrogen Generation by Radiolysis of Tetraphenylborate Solutions and Slurries

This report is a summary of experimental results on radiolytic hydrogen yields from tetraphenylborate (TPB) slurries related to the In-Tank Precipitation (ITP) process. The yields are presented as ''G values'' in units of molecules per 100 eV of absorbed energy. If the radiolytic dose rate is known, the combination of the G value and dose rate gives the rate of hydrogen production. The results of this study are discussed in detail.
Date: May 26, 2004
Creator: CRAWFORD, CHARLESL.
Object Type: Report
System: The UNT Digital Library
High concentration suspended sediment measurments using acontinuous fiber optic in-stream transmissometer (open access)

High concentration suspended sediment measurments using acontinuous fiber optic in-stream transmissometer

Suspended sediment loads mobilized during high flow periods in rivers and streams are largely uncharacterized. In smaller and intermittent streams, a large storm may transport a majority of the annual sediment budget. Therefore monitoring techniques that can measure high suspended sediment concentrations at semi-continuous time intervals are needed. A Fiber optic In-stream Transmissometer (FIT) is presented for continuous measurement of high concentration suspended sediment in storm runoff. FIT performance and precision were demonstrated to be reasonably good for suspended sediment concentrations up to 10g/L. The FIT was compared to two commercially available turbidity devices and provided better precision and accuracy at both high and low concentrations. Both turbidity devices were unable to collect measurements at concentrations greater than 4 g/L. The FIT and turbidity measurements were sensitive to sediment particle size. Particle size dependence of transmittance and turbidity measurement poses the greatest problem for calibration to suspended sediment concentration. While the FIT was demonstrated to provide acceptable measurements of high suspended sediment concentrations, approaches to real-time suspended sediment detection need to address the particle size dependence in concentration measurements.
Date: May 26, 2004
Creator: Campbell, Chris G.; Laycak, Danny T.; Hoppes, William; Tran,Nguyen T. & Shi, Frank G.
Object Type: Article
System: The UNT Digital Library
Chemical Environment at Waste Package Surfaces in a High-Level Radioactive Waste Repository (open access)

Chemical Environment at Waste Package Surfaces in a High-Level Radioactive Waste Repository

We have conducted a series of deliquescence, boiling point, chemical transformation, and evaporation experiments to determine the composition of waters likely to contact waste package surfaces over the thermal history of the repository as it heats up and cools back down to ambient conditions. In the above-boiling period, brines will be characterized by high nitrate to chloride ratios that are stable to higher temperatures than previously predicted. This is clearly shown for the NaCl-KNO{sub 3} salt system in the deliquescence and boiling point experiments in this report. Our results show that additional thermodynamic data are needed in nitrate systems to accurately predict brine stability and composition due to salt deliquescence in dust deposited on waste package surfaces. Current YMP models capture dry-out conditions but not composition for NaCl-KNO{sub 3} brines, and they fail to predict dry-out conditions for NaCl-KNO{sub 3}-NaNO{sub 3} brines. Boiling point and deliquescence experiments are needed in NaCl-KNO{sub 3}-NaNO{sub 3} and NaCl-KNO{sub 3}-NaNO{sub 3}-Ca(NO{sub 3}){sub 2} systems to directly determine dry-out conditions and composition, because these salt mixtures are also predicted to control brine composition in the above-boiling period. Corrosion experiments are needed in high temperature and high NO{sub 3}:Cl brines to determine if nitrate inhibits corrosion …
Date: May 26, 2005
Creator: Carroll, S; Alai, M; Craig, L; Gdowski, G; Hailey, P; Nguyen, Q A et al.
Object Type: Report
System: The UNT Digital Library
Political Turmoil in Thailand and U.S. Interests (open access)

Political Turmoil in Thailand and U.S. Interests

This report examines the Thai government's performance, the role of the military, deposed Prime Minister Thaksin Shinawatra's impact on the situation, and the royal family's influence. It assesses the prospects for more elections, the degree of control exercised by the army over the civilian government, Thaksin's activities and possible future in Bangkok, and the role of the palace in current Thai politics.
Date: May 26, 2009
Creator: Chanlett-Avery, Emma
Object Type: Report
System: The UNT Digital Library