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1,2- Hydroxypyridonates as Contrast Agents for Magnetic ResonanceImaging: TREN-1,2-HOPO

Description: 1,2-Hydroxypyridinones (1,2-HOPO) form very stable lanthanide complexes that may be useful as contrast agents for Magnetic Resonance Imaging (MRI). X-ray diffraction of single crystals established that the solid state structures of the Eu(III) and the previously reported [Inorg. Chem. 2004, 43, 5452] Gd(III) complex are identical. The recently discovered sensitizing properties of 1,2-HOPO chelates for Eu(III) luminescence allow direct measurement of the number if water molecules in the metal co… more
Date: May 8, 2007
Creator: Jocher, Christoph J.; Moore, Evan G.; Xu, Jide; Avedano, Stefano; Botta, Mauro; Aime, Silvio et al.
Item Type: Refine your search to only Article
open access

Agricultural Bio-Fueled Generation of Electricity and Development of Durable and Efficent NOx Reduction

Description: The objective of this project was to define the scope and cost of a technology research and development program that will demonstrate the feasibility of using an off-the-shelf, unmodified, large bore diesel powered generator in a grid-connected application, utilizing various blends of BioDiesel as fuel. Furthermore, the objective of project was to develop an emissions control device that uses a catalytic process and BioDiesel (without the presence of Ammonia or Urea)to reduce NOx and other poll… more
Date: August 8, 2007
Creator: Boyd, Rodney
Item Type: Refine your search to only Report
open access

Agricultural Credit: Institutions and Issues

Description: The federal government has a long history of providing credit assistance to farmers by issuing direct loans and guarantees, and creating rural lending institutions. These institutions include the Farm Service Agency (FSA) of the U.S. Department of Agriculture (USDA), which makes or guarantees loans to farmers who cannot qualify at other lenders, and the Farm Credit System (FCS), which is a network of borrower-owned lending institutions operating as a government-sponsored enterprise. This report… more
Date: March 8, 2007
Creator: Monke, Jim
Item Type: Refine your search to only Report
open access

Agriculture-Based Renewable Energy Production

Description: This report discusses federal programs on agriculture-based renewable energy and how people associated with agriculture have reacted. Moreover, the report discusses how this reaction has been positive and taken the form of an increase in ethanol production along with wind energy.
Date: January 8, 2007
Creator: Schnepf, Randy
Item Type: Refine your search to only Report
open access

Amplification of an ultra short pulse laser by stimulated Raman scattering of a 1 ns pulse in a low density plasma

Description: Experiments are described in which a 1mJ, 1ps, 1200 nm seed laser beam is amplified by interaction with an intersecting 350 J, 1ns, 1054 nm pump beam in a low density (1 x 10{sup 19}/cm{sup 3}) plasma. The transmission of the seed beam is observed to be enhanced by > {approx} 25 x when the plasma is near the resonant density for stimulated Raman scattering (SRS), compared to measured transmissions at wavelengths just below the resonant value. The amplification is observed to increase rapidly… more
Date: October 8, 2007
Creator: Kirkwood, R. K.; Dewald, E.; Niemann, C.; Meezan, N.; Wilks, S. C.; Price, D. W. et al.
Item Type: Refine your search to only Article
open access

Analysis of the SL-1 Accident Using RELAPS5-3D

Description: On January 3, 1961, at the National Reactor Testing Station, in Idaho Falls, Idaho, the Stationary Low Power Reactor No. 1 (SL-1) experienced a major nuclear excursion, killing three people, and destroying the reactor core. The SL-1 reactor, a 3 MW{sub t} boiling water reactor, was shut down and undergoing routine maintenance work at the time. This paper presents an analysis of the SL-1 reactor excursion using the RELAP5-3D thermal-hydraulic and nuclear analysis code, with the intent of simulat… more
Date: November 8, 2007
Creator: Francisco, A.D. and Tomlinson, E. T.
Item Type: Refine your search to only Article
open access

Area factors determinations for an industrial worker exposed to a concrete slab end-slate

Description: The U.S. Department of Energy's (DOE) Savannah River Site (SRS) is decommissioning many of its excess facilities through removal of the facility structures leaving only the concrete-slab foundations in place. Site-specific, risk-based derived concentration guideline levels (DCGLs) for radionuclides have been determined for a future industrial worker potentially exposed to residual contamination on these concrete slabs as described in Jannik [1]. These risk-based DCGLs were estimated for an expo… more
Date: February 8, 2007
Creator: Jannik, Timothy; Lee, Patricia L.; Farfan, Eduardo B. & Roach, Jesse L.
Item Type: Refine your search to only Article
open access

Artificial Fluid Properties for Large-Eddy Simulation of Compressible Turbulent Mixing

Description: An alternative methodology is described for Large-Eddy Simulation of flows involving shocks, turbulence and mixing. In lieu of filtering the governing equations, it is postulated that the large-scale behavior of an ''LES'' fluid, i.e., a fluid with artificial properties, will be similar to that of a real fluid, provided the artificial properties obey certain constraints. The artificial properties consist of modifications to the shear viscosity, bulk viscosity, thermal conductivity and species d… more
Date: January 8, 2007
Creator: Cook, A W
Item Type: Refine your search to only Article
open access

Assessing Recharge and Geological Model Uncertainty at the Climax Mine Area of the Nevada Test Site

Description: Hydrologic analyses are commonly based on a single conceptual-mathematical model. Yet hydrologic environments are open and complex, rendering them prone to multiple interpretations and mathematical descriptions. Considering conceptual model uncertainty is a critical process in hydrologic uncertainty assessment. This study assesses recharge and geologic model uncertainty for the Climax mine area of the Nevada Test Site, Nevada. Five alternative recharge models have been independently developed f… more
Date: November 8, 2007
Creator: Ye, M.; Pohlmann, K.; Chapman, J. & Pohll, G.
Item Type: Refine your search to only Article
open access

Benchmarking / Crosschecking DFS in the ILC Main Linac

Description: In an effort to compare beam dynamics and create a ''benchmark'' for Dispersion Free Steering (DFS) a comparison was made between different ILC simulation programs while performing DFS. This study consisted of three parts. First, a simple betatron oscillation was tracked through each code. Secondly, a set of component misalignments and corrector settings generated from one program was read into the others to confirm similar emittance dilution. Thirdly, given the same set of component misalignme… more
Date: January 8, 2007
Creator: Smith, Jeffrey C.; /Cornell U., LEPP; Eliasson, Peder; Latina, Andrea; Schulte, Daniel; /CERN et al.
Item Type: Refine your search to only Report
open access

Berkeley Seismological Laboratory Seismic Moment Tensor Report for the August 6, 2007 M3.9 Seismic event in central Utah

Description: We have performed a complete moment tensor analysis of the seismic event, which occurred on Monday August 6, 2007 at 08:48:40 UTC 21 km from Mt.Pleasant, Utah. In our analysis we utilized complete three-component seismic records recorded by the USArray, University of Utah, and EarthScope seismic arrays. The seismic waveform data was integrated to displacement and filtered between 0.02 to 0.10 Hz following instrument removal. We used the Song et al. (1996) velocity model to compute Green's funct… more
Date: August 8, 2007
Creator: Ford, S.; Dreger, D. & Hellweg, P.
Item Type: Refine your search to only Report
open access

Biofuels: DOE Lacks a Strategic Approach to Coordinate Increasing Production with Infrastructure Development and Vehicle Needs

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. transportation sector is almost entirely dependent on oil, a condition that poses significant economic and environmental risks. Biofuels, such as ethanol and biodiesel, have the potential to displace oil use in transportation fuel. GAO was asked to describe the status of and impediments to expanding biofuel production, distribution infrastructure, and compatible vehicles as well as federal poli… more
Date: June 8, 2007
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Breakdown of Electrostatic Predictions for the Nonlinear Dispersion Relation of a Stimulated Raman Scattering-Driven Plasma Wave

Description: The kinetic nonlinear dispersion relation, and frequency shift {delta}{omega}{sub srs}, of a plasma wave driven by stimulated Raman scattering (SRS) are presented. Our theoretical calculations are fully electromagnetic, and use an adiabatic expression for the electron susceptibility which accounts for the change in phase velocity as the wave grows. When k{lambda}{sub D} {approx}> 0.35 (k being the plasma wave number and {lambda}{sub D} the Debye length), {delta}{omega}{sub srs} is significan… more
Date: May 8, 2007
Creator: Benisti, D; Strozzi, D J & Gremillet, L
Item Type: Refine your search to only Article
open access

Characterization of Direct Push Vadose Zone Sediments from the T and TY Waste Management Areas

Description: This report contains all the geochemical and selected physical characterization data collected on vadose zone sediment recovered from 5 direct push characterization holes emplaced to investigate vadose zone contamination associated with leaks from tanks 241-TY-105 (UPR-200-W-152) and 241-TY-106 (UPR-200-W-153). Tank 241-TY-105 is estimated to have leaked 35,000 gal of tributyl phosphate (TBP) waste from the uranium recovery process to the vadose zone in 1960. Tank 241-TY-106 is estimated to hav… more
Date: June 8, 2007
Creator: Brown, Christopher F.; Valenta, Michelle M.; Serne, R. Jeffrey; Bjornstad, Bruce N.; Lanigan, David C.; Iovin, Cristian et al.
Item Type: Refine your search to only Report
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