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Container Security: Current Efforts to Detect Nuclear Materials, New Initiatives, and Challenges

Description: Testimony issued by the General Accounting Office with an abstract that begins "After the attacks of September 11th, 2001, concerns intensified over the vulnerability of U.S. ports to acts of terrorism. One particular concern involves the possibility that terrorists would attempt to smuggle illegal fissile material or a tactical nuclear weapon into the country through a cargo container shipped from overseas. This testimony discusses the programs already in place to counter such attempts, new in… more
Date: November 18, 2002
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
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Measurements of diffractive processes at CDF

Description: We review the results of measurements on hard diffractive processes performed by the CDF Collaboration and report preliminary CDF results on two soft diffractive processes with a leading antiproton and a rapidity gap in addition to that associated with the antiproton. All results have been obtained from data collected in Run I of the Fermilab Tevatron {bar p}p collider.
Date: November 18, 2002
Creator: Goulianos, Konstantin
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Implementation of Chord Length Sampling for Transport Through a Binary Stochastic Mixture

Description: Neutron transport through a special case stochastic mixture is examined, in which spheres of constant radius are uniformly mixed in a matrix material. A Monte Carlo algorithm previously proposed and examined in 2-D has been implemented in a test version of MCNP. The Limited Chord Length Sampling (LCLS) technique provides a means for modeling a binary stochastic mixture as a cell in MCNP. When inside a matrix cell, LCLS uses chord-length sampling to sample the distance to the next stochastic sph… more
Date: November 18, 2002
Creator: Donovan, T.J.; Sutton, T.M. & Danon, Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming

Description: This report describes the results made in fulfillment of contract DE-FG26-00BC15190, ''3-D Reservoir and Stochastic Fracture Network Modeling for Enhanced Oil Recovery, Circle Ridge Phosphoria/Tensleep Reservoir, Wind River Reservation, Arapaho and Shoshone Tribes, Wyoming''. The goal of this project is to improve the recovery of oil from the Tensleep and Phosphoria Formations in Circle Ridge Oilfield, located on the Wind River Reservation in Wyoming, through an innovative integration of matrix… more
Date: November 18, 2002
Creator: La Pointe, Paul; Hermanson, Jan; Parney, Robert; Eiben, Thorsten; Dunleavy, Mike; Steele, Ken et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of the amorphous oxide intergranular layer structure and bonding on the fracture toughness of a high purity silicon nitride

Description: The microstructural evolution and structural characteristics and transitions in the thin grain-boundary oxide films in a silicon nitride ceramic, specifically between two adjacent grains and not the triple junctions, are investigated to find their effect on the macroscopic fracture properties. It is found that by heat treating a model Si3N4-2wt percent Y2O3 ceramic for {approx}200 hr at 1400 degrees C in air, the fracture toughness can be increased by {approx}100 percent, coincident with a chan… more
Date: November 18, 2002
Creator: Ziegler, A.; Kisielowski, C.; Hoffmann, M. J. & Ritchie, R. O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ERMYN: Environmental Radiation Model for the Yucca Mountain, Nevada

Description: This paper briefly describes a new biosphere model, ERMYN, that was developed to characterize biosphere processes for radionuclides released from the proposed high-level radioactive waste geologic repository at Yucca Mountain (YM). Biosphere modeling for YM is conducted independently for two radionuclide release modes and resulting exposure scenarios, groundwater release and volcanic release. This paper focuses on the model for groundwater release. The groundwater release exposure scenario addr… more
Date: November 18, 2002
Creator: Wu, D. W.; Wasiolek, M. A.; Tappen, J. J.; Rautenstrauch, K. R. & Smith, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General Models for Assessing Hazards Aircraft Pose to Surface Facilities

Description: This paper derives formulas for estimating the frequency of accidental aircraft crashes into surface facilities. Objects unintentionally dropped from aircraft are also considered. The approach allows the facility to be well within the flight area; inside the flight area, but close to the edge; or completely outside the flight area.
Date: November 18, 2002
Creator: Ragan, G.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of Options for the Collection, Handling, and Transport of Corn Stover

Description: In this report, we discuss the logistics and estimate the delivered costs for collecting, handling, and hauling corn stover to an ethanol conversion facility. We compare costs for two conventional baling systems (large round bales and large rectangular bales), a silage-harvest system, and an unprocessed-pickup system. Our results generally indicate that stover can be collected, stored, and hauled for about $43.60 to $48.80/dry ton ($48.10-$53.80/dry Mg) using conventional baling equipment for c… more
Date: November 18, 2002
Creator: Perlack, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Kinetics of phase growth in the Cu-Sn system and application to composite Nb3Sn strands

Description: Nb{sub 3}Sn is the superconductor most used in the R and D of high field accelerator magnets by either the wind and react or the react and wind technique. In order to program the low temperature steps of the heat treatment, the growth kinetics of Cu-Sn intermetallics was investigated as a function of duration and temperature. The diffusion constants of {eta}, {var_epsilon} and {delta} phases between 150 and 550 C were evaluated using Cu-Sn model samples. Statistical and systematic errors were t… more
Date: November 18, 2002
Creator: al.1, Emanuela Barzi et
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report: April-June 2002

Description: During the sixth quarter of this research project the research team developed a method and the experimental procedures for acquiring the data needed for ultrasonic tomography of rock core samples under triaxial stress conditions as outlined in Task 10. Traditional triaxial compression experiments, where compressional and shear wave velocities are measured, provide little or no information about the internal spatial distribution of mechanical damage within the sample. The velocities measured bet… more
Date: November 18, 2002
Creator: Scott, Thurman E., Jr.; Abousleiman, Younane & Zaman, Musharraf
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemical and Biological National Security Program (CBNP) Annual Report FY2002 Overview Local Integration of NARAC With Cities (LINC)

Description: The objective of the Local Integration of NARAC With Cities (LINC) project is to demonstrate the capability for providing local government agencies with advanced, CBNP-developed operational atmospheric plume prediction capabilities that can be seamlessly integrated with appropriate federal agency support for homeland security. LINC's approach is to integrate Lawrence Livermore National Laboratory's (LLNL) National Atmospheric Release Advisory Center (NARAC) tools and services with local emergen… more
Date: November 18, 2002
Creator: Ermak, D L; Nasstrom, J S; Tull, J E; Baskett, R L; Pobanz, B & Mosley-Rovi, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Estimating Reaction Cross Sections from Measured (Gamma)-Ray Yields: The 238U(n,2n) and 239Pu(n,2n) Cross Sections

Description: A procedure is presented to deduce the reaction-channel cross section from measured partial {gamma}-ray cross sections. In its simplest form, the procedure consists in adding complementary measured and calculated contributions to produce the channel cross section. A matrix formalism is introduced to provide a rigorous framework for this approach. The formalism is illustrated using a fictitious product nucleus with a simple level scheme, and a general algorithm is presented to process any level … more
Date: November 18, 2002
Creator: Younes, W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of Shock Hugoniot Curves of Precompressed Liquid Deuterium

Description: Path integral Monte Carlo simulations have been used to study deuterium at high pressure and temperature. The equation of state has been derived in the temperature and density region of 10,000 {le} T {le} 1,000,000 and 0.6 {le} {rho} {le} 2.5 g cm{sup -3}. A series of shock Hugoniot curves is computed for different initial compressions in order to compare with current and future shock wave experiments using liquid deuterium samples precompressed in diamond anvil cells.
Date: November 18, 2002
Creator: Militzer, B
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FY 2000 Buildings Energy Savings Estimates under Uncertainty: Developing Approaches for Incorporating Risk into Buildings Program Energy Efficiency Estimates

Description: This report is one of two that re-examines the forecasted impact of individual programs currently within the Buildings Technology Program (BT) and the Weatherization and Intergovernmental Program (WIP) that appeared in the FY2000 Presidential Budget request. This report develops potential methods for allowing inherent risk to be captured in the program benefits analysis. Note that the FY2000 budget request was originally analyzed under the former Office of Building Technology, State and Communi… more
Date: November 18, 2002
Creator: Anderson, Dave M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Microcantilever-Based Pathogen Detector

Description: The ability to detect small amounts of materials, especially whole organisms, is important for medical diagnostics and national security issues. Engineered micro-mechanical systems can serve as multifunctional, highly sensitive, real time, immunospecific biological detectors under certain circumstances. We present qualitative detection of specific Salmonella strains using a functionalized silicon nitride microcantilever. Detection is achieved due to differential surface stress on the cantilever… more
Date: November 18, 2002
Creator: Weeks, B. L.; Camarero, J.; Noy, A.; Miller, A. E. & De Yoreo, J. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Feasibility of Thin Fresnel Lens Use in Multi-kj, Short Pulse Laser Systems

Description: Recently-developed, thin-Fresnel-lens technology offers the potential for transmissive focusing of high-peak-power, ultrashort-duration laser pulses. Calculations of the transverse and longitudinal spectral blurring effects of thin Fresnel lenses when used to focus ultrashort, high-energy laser pulses are presented.
Date: November 18, 2002
Creator: Jovanovic, I; Dixit, S N; Wattellier, B; Hermann, M R & Barty, C P J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Strictly hyperbolic models of co-current three-phase flow withgravity

Description: We study the character of the equations in the traditional formulation of one-dimensional immiscible three-phase flow with gravity, in the limit of negligible capillarity. We restrict our analysis to co-current flow required for a displacement process; in cases of mixed co-current and counter-current flow, capillarity effects cannot be dropped from the formulation. The model makes use of the classical multiphase extension of Darcy's equation. It is well known that, if relative permeabilities ar… more
Date: November 18, 2002
Creator: Juanes, Ruben & Patzek, Tadeusz W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report: July-September 2002

Description: During the seven quarter of the project the research team analyzed some of the acoustic velocity data and rock deformation data. The goal is to create a series of ''deformation-velocity maps'' which can outline the types of rock deformational mechanisms which can occur at high pressures and then associate those with specific compressional or shear wave velocity signatures. During this quarter, we began to analyze both the acoustical and deformational properties of the various rock types. Some o… more
Date: November 18, 2002
Creator: Scott, Thurman E., Jr.; Abousleiman, Younane & Zaman, Musharraf
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II

Description: The purpose of this project was to economically design an optimum carbon dioxide (CO2) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO2 horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar… more
Date: November 18, 2002
Creator: Wier, Don R. Chimanhusky, John S.; Czirr, Kirk L.; Hallenbeck, Larry; Gerard, Matthew G.; Dollens, Kim B.; Owen, Rex et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diffraction Limited Focal Spots for Off-Thermal Equilibrium 100-TW Nd: Glass Laser Chain using a Dielectric Coated Deformable Mirror

Description: We demonstrate the use of a dielectric-coated deformable mirror to correct LULI 100-TW Nd:Glass facility spatial aberrations. Almost diffraction limited foci have been obtained even when the laser chain amplifiers were highly off thermal equilibrium.
Date: November 18, 2002
Creator: Wattellier, B.; Fuchs, J.; Zou, J. P.; Abdeli, K.; Chanteloup, J.-C. & Haefner, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Homeland Security: Intelligence Support

Description: This report examines the information analysis function and the sharing information among federal agencies but does not address provisions in the proposed legislation governing the sharing of intelligence with state and local officials; it will be updated as circumstances warrant.
Date: November 18, 2002
Creator: Best, Richard A., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy Policy: Setting the Stage for the Current Debate

Description: The Bush Administration issued its plan for a national energy policy on May 16, 2001. The plan was controversial, characterized by some as leaner on conservation and renewables than Democratic proposals, and predisposed to trade off environmental considerations to increase supply. Comprehensive energy legislation was introduced in the Senate by both parties by late March (S. 388, S. 389, S. 596, S. 597). Bills reported by several House committees (H.R. 2436, H.R. 2460, H.R. 2511, and H.R. 2587)… more
Date: November 18, 2002
Creator: Bamberger, Robert L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Appropriations for FY2003: Legislative Branch

Description: Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress considers each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Legislative Branch Appropriations.
Date: November 18, 2002
Creator: Dwyer, Paul E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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