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Homeland Security: Management of First Responder Grant Programs Has Improved, but Challenges Remain

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Office for Domestic Preparedness (ODP)--originally established in 1998 within the Department of Justice to help state and local first responders acquire specialized training and equipment needed to respond to terrorist incidents--was transferred to the Department of Homeland Security upon its creation in March 2003. After September 11, 2001, the scope and size of ODP's grant programs expanded. For e… more
Date: February 2, 2005
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National Nuclear Security Administration: Contractors' Strategies to Recruit and Retain a Critically Skilled Workforce Are Generally Effective

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Responsibility for ensuring the safety and reliability of the nuclear weapons stockpile rests upon a cadre of workers at eight contractor-operated National Nuclear Security Administration (NNSA) weapons facilities. Many of these workers--including scientists, engineers, and technicians--have "critical" skills needed to maintain the stockpile. About 37 percent of these workers are at or near retirement a… more
Date: February 2, 2005
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Military Personnel: A Strategic Approach Is Needed to Address Long-term Guard and Reserve Force Availability

Description: A statement of record issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) has six reserve components: the Army Reserve, the Army National Guard, the Air Force Reserve, the Air National Guard, the Naval Reserve, and the Marine Corps Reserve. DOD's use of Reserve and National Guard forces increased dramatically following the events of September 11, 2001, and on January 19, 2005, more than 192,000 National Guard and Reserve component members… more
Date: February 2, 2005
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

137Cs and 210Po in Pacific Walrus and Bearded Seal from St. Lawrence Island, Alaska

Description: The activity concentration of Cesium-137 ({sup 137}Cs) and naturally-occurring Polonium-210 ({sup 210}Po) were measured in the muscle tissue, kidney and liver of Pacific walrus (Odobenus rosmarus divergens) and bearded seal (Erignathus barbatus) collected by native hunters from the Bering Sea. The mean {sup 137}Cs concentrations in muscle, liver and kidney of Pacific walrus were 0.07, 0.09 and 0.07 Bq kg{sup -1} (N= 5, wet weight), respectively, and 0.17, 0.10, and 0.17 Bq kg{sup -1} (N=2, wet … more
Date: February 2, 2005
Creator: Hamilton, T F; Seagars, D J; Jokela, T & Layton, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NOVEL CONCEPTS RESEARCH IN GEOLOGIC STORAGE OF CO{sub 2}

Description: As part of the Department of Energy's (DOE) initiative on developing new technologies for storage of carbon dioxide in geologic reservoirs, Battelle has been awarded a project to investigate the feasibility of CO{sub 2} sequestration in the deep saline reservoirs in the Ohio River Valley region. This project is the Phase III of Battelle's work under the Novel Concepts in Greenhouse Gas Management grant. In addition to the DOE, the project is being sponsored by American Electric Power (AEP), BP,… more
Date: February 2, 2005
Creator: Gupta, Neeraj
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electroweak physics: measurement of w gamma and z gamma production in pp-bar collisions at s**(1/2) = 1.96 tev

Description: The Standard Model predictions for W{gamma} and Z{gamma} production are tested using an integrated luminosity of 200 pb{sup -1} of p{bar p} collision data collected at the Collider Detector at Fermilab. The cross sections are measured by selecting leptonic decays of the W and Z bosons, and photons with transverse energy E{sub T} > 7 GeV that are well separated from leptons. The production cross sections and kinematic distributions for the W{gamma} and Z{gamma} data are compared to SM predict… more
Date: February 2, 2005
Creator: Acosta, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Sorbent Injection for Mercury Control

Description: The power industry in the U.S. is faced with meeting new regulations to reduce the emissions of mercury compounds from coal-fired plants. These regulations are directed at the existing fleet of nearly 1,100 boilers. These plants are relatively old with an average age of over 40 years. Although most of these units are capable of operating for many additional years, there is a desire to minimize large capital expenditures because of the reduced (and unknown) remaining life of the plant to amortiz… more
Date: February 2, 2005
Creator: Sjostrom, Sharon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metabolic engineering of deinococcus radiodurans based on computational analysis and functional genomics

Description: The objective of our work is to develop novel computational tools to analyze the Deinococcus radiodurans DNA repair pathways and the influence of the metabolic flux distribution on DNA repair. These tools will be applied to provide insights for metabolic engineering of strains capable of growing under nutrient poor conditions similar to those found in mixed contaminant sites of interest to the DOE. Over the entire grant period we accomplished all our specific aims and were also able to pursue n… more
Date: February 2, 2005
Creator: Edwards, Jeremy, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Overview of the Advanced CompuTational Software (ACTS)Collection

Description: The ACTS Collection brings together a number of general-purpose computational tools that were developed by independent research projects mostly funded and supported by the U.S. Department of Energy. These tools tackle a number of common computational issues found in many applications, mainly implementation of numerical algorithms, and support for code development, execution and optimization. In this article, we introduce the numerical tools in the collection and their functionalities, present a… more
Date: February 2, 2005
Creator: Drummond, Leroy A. & Marques, Osni A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Efficient Coupling of Thermal Electron Bernstein Waves to the Ordinary Electromagnetic Mode on the National Spherical Torus Experiment (NSTX)

Description: Efficient coupling of thermal electron Bernstein waves (EBW) to ordinary mode (Omode) electromagnetic radiation has been measured in plasmas heated by energetic neutral beams and high harmonic fast waves in the National Spherical Torus Experiment (NSTX) [M. Ono, S. Kaye, M. Peng, et al., Proceedings 17th IAEA Fusion Energy Conference (IAEA, Vienna, Austria, 1999), Vol.3, p. 1135]. The EBW to electromagnetic mode coupling efficiency was measured to be 0.8 {+-} 0.2, compared to a numerical EBW mo… more
Date: February 2, 2005
Creator: Taylor, G.; Efthimion, P. C.; LeBlanc, B. P.; Carter, M. D.; Caughman, J. B.; Wilgen, J. B. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Fast MoM Solver (GIFFT) for Large Arrays of Microstrip and Cavity-Backed Antennas

Description: A straightforward numerical analysis of large arrays of arbitrary contour (and possibly missing elements) requires large memory storage and long computation times. Several techniques are currently under development to reduce this cost. One such technique is the GIFFT (Green's function interpolation and FFT) method discussed here that belongs to the class of fast solvers for large structures. This method uses a modification of the standard AIM approach [1] that takes into account the reusability… more
Date: February 2, 2005
Creator: Fasenfest, B J; Capolino, F & Wilton, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Computational Model with Experimental Validation for DNA Flow in Microchannels

Description: The authors compare a computational model to experimental data for DNA-laden flow in microchannels. The purpose of this work in progress is to validate a new numerical algorithm for viscoelastic flow using the Oldroyd-B model. The numerical approach is a stable and convergent polymeric stress-splitting scheme for viscoelasticity. They treat the hyperbolic part of the equations of motion with an embedded boundary method for solving hyperbolic conservation laws in irregular domains. They enforce … more
Date: February 2, 2005
Creator: Nonaka, A; Gulati, S; Trebotich, D; Miller, G H; Muller, S J & Liepmann, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Finite Temperature Quasicontinuum: Molecular Dynamics without all the Atoms

Description: Using a combination of statistical mechanics and finite-element interpolation, the authors develop a coarse-grained (CG) alternative to molecular dynamics (MD) for crystalline solids at constant temperature. The new approach is significantly more efficient than MD and generalizes earlier work on the quasi-continuum method. The method is validated by recovering equilibrium properties of single crystal Ni as a function of temperature. CG dynamical simulations of nanoindentation reveal a strong de… more
Date: February 2, 2005
Creator: Dupuy, L; Tadmor, E B; Miller, R E & Phillips, R
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Femtosecond, High-Brightness Electron Beam Generation and Advanced Diagnosis

Description: This document serves as the final report for LDRD project number 04-LW-031, in which we created subpicosecond length, kilo-amp peak current electron beams with the 100 MeV electron/positron linac, using a novel technique designed to produce ultra-short bunch lengths while maintaining the high brightness produced by the S-band photoinjector. In addition, a diagnostic to measure the temporal distribution of the beam was investigated, as conventional pulse length measurement techniques do not appl… more
Date: February 2, 2005
Creator: Anderson, S G; Brown, W J; Tremaine, A M; Kuba, J; Hartemann, F V & Fittinghoff, D N
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Efficient Numerical Modeling of Truncation Effects and Defects in Finite Periodic Structures

Description: There is a keen interest in using periodic structures to model such structures as phased arrays, frequency selective surfaces, and metamaterials. Recent interest has focused on modeling the truncation effects of periodic structures. The GIFFT (Green's function Interpolation using Fast Fourier Transform) method has recently been proposed as an efficient integral equation approach for handling moderate-to-large structures with essentially arbitrary (but identical) elements within each cell. The m… more
Date: February 2, 2005
Creator: Fasenfest, B J; Basilio, L; Wilton, D & Capolino, F
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Knowledge Representation Issues in Semantic Graphs for Relationship Detection

Description: An important task for Homeland Security is the prediction of threat vulnerabilities, such as through the detection of relationships between seemingly disjoint entities. A structure used for this task is a ''semantic graph'', also known as a ''relational data graph'' or an ''attributed relational graph''. These graphs encode relationships as typed links between a pair of typed nodes. Indeed, semantic graphs are very similar to semantic networks used in AI. The node and link types are related thr… more
Date: February 2, 2005
Creator: Barthelemy, M; Chow, E & Eliassi-Rad, T
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nuclear Design Considerations for Z-IFE Chambers

Description: Z-pinch driven IFE (Z-IFE) requires the design of a repetitive target insertion system that allows coupling of the pulsed power to the target with adequate standoff, and a chamber that can withstand blast and radiation effects from large yield targets. The present strategy for Z-IFE is to use high yield targets ({approx}2-3 GJ/shot), low repetition rate per chamber ({approx}0.1 Hz), and 10 chambers per power plant. In this study, we propose an alternative power plant configuration that uses ver… more
Date: February 2, 2005
Creator: Meier, W. R.; Schmitt, R. C.; Abbott, R. P.; Latkowski, J. F. & Reyes, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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