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Defense Space Activities: National Security Space Strategy Needed to Guide Future DOD Space Efforts

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "The United States depends on space assets to support national security activities as well as civil and commercial activities. The Department of Defense (DOD) depends on space assets to support a wide range of military missions to include intelligence collection; battlefield surveillance and management; global command, control, and communications; and navigation assistance. This operational dependence on … more
Date: March 27, 2008
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Separation of Yeast Cells from MS2 Viruses Using Acoustic Radiation Force

Description: We report a rapid and robust separation of Saccharomyces cerevisiae and MS2 bacteriophage using acoustic focusing in a microfluidic device. A piezoelectric transducer (PZT) generates acoustic standing waves in the microchannel. These standing waves induce acoustic radiation force fields that direct microparticles towards the nodes (i.e., pressure minima) or the anti-nodes (i.e., pressure maxima) of the standing waves depending on the relative compressidensity between the particle and the suspen… more
Date: March 27, 2008
Creator: Jung, B.; Fisher, K.; Ness, K.; Rose, K. A. & Mariella, R. P., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Project Title: Nuclear Astrophysics Data from Radioactive Beam Facilities

Description: The scientific aims of this project have been the evaluation and dissemination of key nuclear reactions in nuclear astrophysics, with a focus on ones to be studied at new radioactive beam facilities worldwide. These aims were maintained during the entire funding period from 2003 - 2006. In the following, a summary of the reactions evaluated during this period is provided. Year 1 (2003-04): {sup 21}Na(p,{gamma}){sup 22}Mg and {sup 18}Ne({alpha},p){sup 21}Na - The importance of the {sup 21}Na(p,{… more
Date: March 27, 2008
Creator: Chen, Alan A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Least Squares Magnetic-Field Optimization for Portable Nuclear Magnetic Resonance Magnet Design

Description: Single-sided and mobile nuclear magnetic resonance (NMR) sensors have the advantages of portability, low cost, and low power consumption compared to conventional high-field NMR and magnetic resonance imaging (MRI) systems. We present fast, flexible, and easy-to-implement target field algorithms for mobile NMR and MRI magnet design. The optimization finds a global optimum ina cost function that minimizes the error in the target magnetic field in the sense of least squares. When the technique is … more
Date: March 27, 2008
Creator: Paulsen, Jeffrey L; Franck, John; Demas, Vasiliki & Bouchard, Louis-S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Argonne National Laboratory Summary Site Environmental Report for Calendar Year 2006.

Description: This booklet is designed to inform the public about what Argonne National Laboratory is doing to monitor its environment and to protect its employees and neighbors from any adverse environmental impacts from Argonne research. The Downers Grove South Biology II class was selected to write this booklet, which summarizes Argonne's environmental monitoring programs for 2006. Writing this booklet also satisfies the Illinois State Education Standard, which requires that students need to know and appl… more
Date: March 27, 2008
Creator: Golchert, N. W. & Oversight, ESH /QA
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SHIELDING ANALYSIS FOR X-RAY SOURCES GENERATED IN TARGET CHAMBER OF THE NATIONAL IGNITION FACILITY

Description: Prompt doses from x-rays generated as result of laser beam interaction with target material are calculated at different locations inside the National Ignition Facility (NIF). The maximum dose outside a Target Chamber diagnostic port is {approx} 1 rem for a shot utilizing the 192 laser beams and 1.8 MJ of laser energy. The dose during a single bundle shot (8 laser beams) drops to {approx} 40 mrem. Doses calculated outside the Target Bay doors and inside the Switchyards (except for the 17 ft.-6 i… more
Date: March 27, 2008
Creator: Khater, H Y; Brereton, S J & Singh, M S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

S-102 Transfer Pump Restriction Modeling Results

Description: It was determined that a radioactive waste leak in the Hanford S Farm in the vicinity of the S-102 retrieval pump discharge occurred because of over-pressurization and failure of the S-102 dilution water supply hose while operating the retrieval pump in reverse with an obstructed suction cavity and an unobstructed flow path to the dilution water supply hose. This report describes efforts to identify plausible scenarios for the waste leak to occur.
Date: March 27, 2008
Creator: Wells, Beric E.; Johnson, Kenneth I.; Rector, David R. & Trent, Donald S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HYDROGEN EFFECTS ON THE BURST PROPERTIES OF TYPE 304L STAINLESS STEEL FLAWED VESSELS

Description: The effect of hydrogen on the burst properties Type 304L stainless steel vessels was investigated. The purpose of the study was to compare the burst properties of hydrogen-exposed stainless steel vessels burst with different media: water, helium gas, or deuterium gas. A second purpose of the tests was to provide data for the development of a predictive finite-element model. The burst tests were conducted on hydrogen-exposed and unexposed axially-flawed cylindrical vessels. The results indicate … more
Date: March 27, 2008
Creator: Morgan, M; Monica Hall, M; Ps Lam, P & Dean Thompson, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Bacterial and Viral Recoveries from 'Complex' Samples using Electrophoretically Assisted Acoustic Focusing

Description: Automated front-end sample preparation technologies can significantly enhance the sensitivity and reliability of biodetection assays [1]. We are developing advanced sample preparation technologies for biowarfare detection and medical point-of-care diagnostics using microfluidic systems with continuous sample processing capabilities. Here we report an electrophoretically assisted acoustic focusing technique to rapidly extract and enrich viral and bacterial loads from 'complex samples', applied i… more
Date: March 27, 2008
Creator: Ness, K.; Rose, K.; Jung, B.; Fisher, K. & Mariella, R. P., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2006 Lawrence Livermore National Laboratory Annual Illness and Injury Surveillance Report

Description: The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of illness and injury surveillance activities that provide an early warning system to detect health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: March 27, 2008
Creator: United States. Department of Energy. Office of Health, Safety, and Security.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

L-Shell Spectroscopy of Au as a Temperature Diagnostic Tool

Description: In order to develop plasma diagnostic for reduced-size hot hohlraums under laser irradiation, they have studied the L-shell emission from highly charged gold ions in the SuperEBIT electron beam ion trap. The resolving power necessary to identify emission features from individual charge states in a picket fence pattern has been estimated, and the observed radiation features have been compared with atomic structure calculations. They find that the strong 3d{sub 5/2} {yields} 2p{sub 3/2} emission … more
Date: March 27, 2008
Creator: Trabert, E; Hansen, S B; Beiersdorfer, P; Brown, G V; Widmann, K & Chung, H K
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Renewable Energy Financing: The Role of Policy and Economics

Description: Renewable portfolio standards (RPS) have rapidly developed momentum in certain sections of the United States and throughout the world, primarily in response to climate and energy security concerns. This presentation at the RPS Symposium, sponsored by the Electric Utility Consultants Inc., will discuss renewable energy financing and the economics of such policies.
Date: March 27, 2008
Creator: Cory, K.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Resonant Auger Effect at High X-Ray Intensity

Description: The resonant Auger effect of atomic neon exposed to high-intensity x-ray radiation in resonance with the 1s {yields} 3p transition is discussed. High intensity here means that the x-ray peak intensity is sufficient ({approx} 10{sup 18} W/cm{sup 2}) to induce Rabi oscillations between the neon ground state and the 1s{sup -1}3p ({sup 1}P) state within the relaxation lifetime of the inner-shell vacancy. For the numerical analysis presented, an effective two-level model, including a description of … more
Date: March 27, 2008
Creator: Rohringer, N & Santra, R
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Russian Energy Policy Toward Neighboring Countries

Description: This report begins with a brief discussion of the Russian oil and gas industries, including their efforts to purchase energy infrastructure in central and Eastern Europe and reduce energy subsidies to neighboring countries. A second section deals with the impact of recent Russian energy policy on neighboring countries, all of them formerly part of the Soviet Union, de facto or de jure, and all heavily dependent on Russian energy imports.
Date: March 27, 2008
Creator: Woehrel, Steven
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gangs in Central America

Description: This report describes the gang problem in Central America, discusses country and regional approaches to deal with the gangs, and analyzes U.S. policy with respect to gangs in Central America.
Date: March 27, 2008
Creator: Seelke, Clare Ribando
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Foreign Investment in the United States: Major Federal Statutory Restrictions

Description: This report takes a look at some of the major federal statutes which presently restrict investment by foreigners. The report first gives a brief history of foreign investment in the United States. It then reviews constitutional justifications and constitutional limitations which exist concerning federal statutory restrictions on foreign ownership of property.
Date: March 27, 2008
Creator: Seitzinger, Michael V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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