UNT Libraries Government Documents Department - 231 Matching Results

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1994 SSRL Activity Report

Description: SSRL, a division of the Stanford Linear Accelerator Center, is a national user facility which provides synchrotron radiation, a name given to x-rays or light produced by electrons circulating in a storage ring at nearly the speed of light. The synchrotron radiation is produced by the 3.3 GeV storage ring, SPEAR. SPEAR is a fully dedicated synchrotron radiation facility which has been operating for user experiments 6 to 7 months per year. 1994, the third year of operation of SSRL as a fully dedi… more
Date: November 18, 2011
Item Type: Refine your search to only Report
open access

3D Surface Mapping of Capsule Fill-Tube Assemblies used in Laser-Driven Fusion Targets

Description: This paper presents the development of a 3D surface mapping system used to measure the surface of a fusion target Capsule Fill-Tube Assembly (CFTA). The CFTA consists of a hollow Ge-doped plastic sphere, called a capsule, ranging in outer diameter between 2.2 mm and 2.6 mm and an attached 150 {micro}m diameter glass-core fill-tube that tapers down to a 10{micro} diameter at the capsule. The mapping system is an enabling technology to facilitate a quality assurance program and to archive 3D surf… more
Date: February 18, 2011
Creator: Buice, E. S.; Alger, E. T.; Antipa, N. A.; Bhandarkar, S. D.; Biesiada, T. A.; Conder, A. D. et al.
Item Type: Refine your search to only Article
open access

ACCEPTABILITY ENVELOPE FOR METAL HYDRIDE-BASED HYDROGEN STORAGE SYSTEMS

Description: The design and evaluation of media based hydrogen storage systems requires the use of detailed numerical models and experimental studies, with significant amount of time and monetary investment. Thus a scoping tool, referred to as the Acceptability Envelope, was developed to screen preliminary candidate media and storage vessel designs, identifying the range of chemical, physical and geometrical parameters for the coupled media and storage vessel system that allow it to meet performance targets… more
Date: July 18, 2011
Creator: Hardy, B.; Corgnale, C.; Tamburello, D.; Garrison, S. & Anton, D.
Item Type: Refine your search to only Article
open access

Afghanistan Casualties: Military Forces and Civilians

Description: This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001, and is ongoing. OEF actions take place primarily in Afghanistan, but OEF casualties also include American casualties in other countries, listed within this report.
Date: May 18, 2011
Creator: Chesser, Susan G.
Item Type: Refine your search to only Report
open access

Afghanistan: Post-Taliban Governance, Security, and U.S. Policy

Description: This report discusses the current political state of Afghanistan, focusing particularly on the influence of the Taliban and other militant groups and on the leadership of Afghan President Hamid Karzai. This report also discusses the U.S.-Iran relationship and U.S. efforts under the Obama Administration to provide military, reconstructive, and stabilization aid.
Date: February 18, 2011
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
open access

Agricultural Biotechnology: Background and Recent Issues

Description: This report discusses the ethical and political issues surrounding contemporary biotechnology. Driving the discussion are inventions such as genetically engineered (GE) crops, which have increased from 3.6 million acres to 143 million acres in the United States. The report also raises concerns about regulations and the adequacy of environmental assessments.
Date: June 18, 2011
Creator: Cowan, Tadlock
Item Type: Refine your search to only Report
open access

Alpha Heating in ITER L-mode and H-mode Plasma

Description: There are many uses of predictions of ITER plasma performance. One is assessing requirements of different plasma regimes. For instance, what current drive and control are needed for steady state. The heating, current drive, and torque systems planned for initial DT operation are negative ion neutral beam injection (NB), ion cyclotron resonance (IC), and electron cyclotron resonance (EC). Which combinations of heating are optimal. What are benefits of the torques, current drive, and fueling usin… more
Date: July 18, 2011
Creator: Budny, R.V.
Item Type: Refine your search to only Article
open access

Analysis of Combined Hydrogen, Heat, and Power as a Bridge to a Hydrogen Transition.

Description: Combined hydrogen, heat, and power (CHHP) technology is envisioned as a means to providing heat and electricity, generated on-site, to large end users, such as hospitals, hotels, and distribution centers, while simultaneously producing hydrogen as a by-product. The hydrogen can be stored for later conversion to electricity, used on-site (e.g., in forklifts), or dispensed to hydrogen-powered vehicles. Argonne has developed a complex-adaptive-system model, H2CAS, to simulate how vehicles and infr… more
Date: January 18, 2011
Creator: Mahalik, M. & Stephan, C. (Decision and Information Sciences)
Item Type: Refine your search to only Report
open access

ARM Climate Research Facility Quarterly Value-Added Product Report Third Quarter: April 01–June 30, 2011

Description: The purpose of this report is to provide a concise status update for value-added products (VAP) implemented by the Atmospheric Radiation Measurement Climate Research Facility. The report is divided into the following sections: (1) new VAPs for which development has begun, (2) progress on existing VAPs, (3) future VAPs that have been recently approved, (4) other work that leads to a VAP, and (5) top requested VAPs from the archive
Date: August 18, 2011
Creator: Sivaraman, C
Item Type: Refine your search to only Report
open access

Army Corps Fiscal Challenges: Frequently Asked Questions

Description: This report looks at issues in funding all of the Army Corps requests for the fiscal year. The Army Corps of Engineers is responsible for much of the federal water resources infrastructure in the United States. The Corps is faced with more demands for building and maintaining its projects than available federal funding allows. At issue for Congress is deciding how to tackle Corps fiscal challenges during a tight fiscal climate and under earmark moratoriums.
Date: August 18, 2011
Creator: Carter, Nicole T. & Stern, Charles V.
Item Type: Refine your search to only Report
open access

Assessment of the Losses Due to Self Absorption by Mass Loading on Radioactive Particulate Air Stack Sample Filters

Description: This report discusses the effect of mass loading of a membrane filter on the self absorption of radioactive particles. A relationship between mass loading and percent loss of activity is presented. Sample filters were collected from Pacific Northwest National Laboratory (PNNL) facilities in order to analyze the current self absorption correction factor of 0.85 that is being used for both alpha and beta particles. Over an eighteen month period from February 2009 to July 2010, 116 samples were co… more
Date: January 18, 2011
Creator: Smith, Brian M.; Barnett, J. M. & Ballinger, Marcel Y.
Item Type: Refine your search to only Report
open access

The Atacama Cosmology Telescope: Cosmology from Galaxy Clusters Detected via the Sunyaev-Zel'dovich Effect

Description: We present constraints on cosmological parameters based on a sample of Sunyaev-Zeldovich-selected galaxy clusters detected in a millimeter-wave survey by the Atacama Cosmology Telescope. The cluster sample used in this analysis consists of 9 optically-confirmed high-mass clusters comprising the high-significance end of the total cluster sample identified in 455 square degrees of sky surveyed during 2008 at 148GHz. We focus on the most massive systems to reduce the degeneracy between unknown clu… more
Date: August 18, 2011
Creator: Sehgal, Neelima; Trac, Hy; Acquaviva, Viviana; Ade, Peter A.R.; Aguirre, Paula; Amiri, Mandana et al.
Item Type: Refine your search to only Article
open access

Austin's Home Performance with Energy Star Program: Making a Compelling Offer to a Financial Institution Partner

Description: Launched in 2006, over 8,700 residential energy upgrades have been completed through Austin Energy's Home Performance with Energy Star (HPwES) program. The program's lending partner, Velocity Credit Union (VCU) has originated almost 1,800 loans, totaling approximately $12.5 million. Residential energy efficiency loans are typically small, and expensive to originate and service relative to larger financing products. National lenders have been hesitant to deliver attractive loan products to this … more
Date: March 18, 2011
Creator: Zimring, Mark
Item Type: Refine your search to only Report
open access

The Backstroke Framework for Source Level Reverse Computation Applied to Parallel Discrete Event Simulation

Description: This report introduces Backstroke, a new open source framework for the automatic generation of reverse code for functions written in C++. Backstroke enables reverse computation for optimistic parallel discrete event simulations. It is built over the ROSE open- source compiler infrastructure, and handles complex C++ features including pointers and pointer types, arrays, function and method calls, class types. inheritance, polymorphism, virtual functions, abstract classes, templated classes and c… more
Date: July 18, 2011
Creator: Vulov, G.; Hou, C.; Quinlan, D.; Vuduc, R.; Fujimoto, R. & Jefferson, D.
Item Type: Refine your search to only Article
open access

Bahrain: Reform, Security, and U.S. Policy

Description: This report discusses the current state of Bahrain, which has undergone substantial political reforms since the late 1990s, but which still suffers from tension between the Shiite majority and the Sunni-led government. This report focuses particularly on Bahrain's relationship with Iran and Bahrain's relationship with the United States.
Date: October 18, 2011
Creator: Katzman, Kenneth
Item Type: Refine your search to only Report
open access

Ballistic Missile Defense: Actions Needed to Improve Training Integration and Increase Transparency of Training Resources

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Since 2002, the Department of Defense (DOD) has spent over $80 billion on developing and fielding a Ballistic Missile Defense System (BMDS) comprised of various land-and sea-based elements employed by multiple combatant commands and services. Since the time available to intercept a missile is short, integrating training among all organizations involved is important to connect seams where commands and el… more
Date: July 18, 2011
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

BERYLLIUM MEASUREMENT IN COMMERCIALLY AVAILABLE WET WIPES

Description: Analysis for beryllium by fluorescence is now an established method which is used in many government-run laboratories and commercial facilities. This study investigates the use of this technique using commercially available wet wipes. The fluorescence method is widely documented and has been approved as a standard test method by ASTM International and the National Institute for Occupational Safety and Health (NIOSH). The procedure involves dissolution of samples in aqueous ammonium bifluoride s… more
Date: February 18, 2011
Creator: Youmans-Mcdonald, L.
Item Type: Refine your search to only Article
open access

Black Conductive Titanium Oxide High-Capacity Materials for Battery Electrodes

Description: Stoichiometric titanium dioxide (TiO{sub 2}) is one of the most widely studied transitionmetal oxides because of its many potential applications in photoelectrochemical systems, such as dye-sensitized TiO{sub 2} electrodes for photovoltaic solar cells, and water-splitting catalysts for hydrogen generation, and in environmental purification for creating or degrading specific compounds. However, TiO{sub 2} has a wide bandgap and high electrical resistivity, which limits its use as an electrode. A… more
Date: May 18, 2011
Creator: Han, W.
Item Type: Refine your search to only Article
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