U.S. Security Assistance to Lebanon (open access)

U.S. Security Assistance to Lebanon

This report discusses key issues facing U.S. policy makers and Members of Congress when considering U.S. security assistance in the context of U.S. policy toward Lebanon. These key issues include assessing the effectiveness of U.S. assistance programs, assessing overall U.S. policy toward Lebanon, and managing relations with other external actors.
Date: September 20, 2010
Creator: Addis, Casey L.
Object Type: Report
System: The UNT Digital Library
U.S. Security Assistance to Lebanon (open access)

U.S. Security Assistance to Lebanon

This report discusses key issues facing U.S. policy makers and Members of Congress when considering U.S. security assistance in the context of U.S. policy toward Lebanon. These key issues include assessing the effectiveness of U.S. assistance programs, assessing overall U.S. policy toward Lebanon, and managing relations with other external actors.
Date: September 20, 2010
Creator: Addis, Casey L.
Object Type: Report
System: The UNT Digital Library
Globalization, Worker Insecurity, and Policy Approaches (open access)

Globalization, Worker Insecurity, and Policy Approaches

This report discusses the trends driving global economic integration, sources of worker insecurity and policy approaches. There appears to be a range of views on the merits of each of these policy approaches and the extent to which they can be designed and implemented in a way that would reduce worker insecurity without undermining the benefits of globalization.
Date: January 20, 2010
Creator: Ahearn, Raymond J.
Object Type: Report
System: The UNT Digital Library

E85 Quality Specifications and Market Surveys

Presentation about ethanol, specifications for E85, and market surveys of fuel quality.
Date: April 20, 2010
Creator: Alleman, T. L.
Object Type: Presentation
System: The UNT Digital Library
A search for $ZH\rightarrow \mu\mu b \bar{b}$ production at the Tevatron (open access)

A search for $ZH\rightarrow \mu\mu b \bar{b}$ production at the Tevatron

The Standard Model describes with a very good accuracy all interactions of the, so far, known elementary particles. However the Higgs mechanism, which gives rise to the observed mass of these particles, has not yet been confirmed. The Higgs particle has not yet been observed, and the observation or exclusion is an important test of the Standard Model. The Standard Model does not predict the mass of the Higgs particle, however it does impose some limits on the range in which this mass can lie. In direct searches a Higgs with a mass smaller than 114.4 GeV and within 162 GeV and 166 GeV has been excluded at 95% CL at the LEP and the Tevatron colliders. The analysis presented in this thesis is aimed to search for the ZH → μμb$\bar{b}$ events in 3.1 fb<sup>-1</sup> of data collected with the DØ detector in p$\bar{p}$ collisions at √s = 1.96 TeV.
Date: April 20, 2010
Creator: Ancu, Lucian-Stefan
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The LSST camera corner raft conceptual design: a front-end for guiding and wavefront sensing (open access)

The LSST camera corner raft conceptual design: a front-end for guiding and wavefront sensing

None
Date: May 20, 2010
Creator: Arndt, K.; Riot, V.; Alagoz, E.; Biccum, A.; Bohn, A.; Clampit, J. et al.
Object Type: Article
System: The UNT Digital Library
Inclusion of Scatter in HADES: Final Report (open access)

Inclusion of Scatter in HADES: Final Report

Covert nuclear attack is one of the foremost threats facing the United States and is a primary focus of the War on Terror. The Domestic Nuclear Detection Office (DNDO), within the Department of Homeland Security (DHS), is chartered to develop, and improve domestic systems to detect and interdict smuggling for the illicit use of a nuclear explosive device, fissile material or radiologica1 material. The CAARS (Cargo Advanced Automated Radiography System) program is a major part of the DHS effort to enhance US security by harnessing cutting-edge technologies to detect radiological and nuclear threats at points of entry to the United States. DNDO has selected vendors to develop complete radiographic systems. It is crucial that the initial design and testing concepts for the systems be validated and compared prior to the substantial efforts to build and deploy prototypes and subsequent large-scale production. An important aspect of these systems is the scatter which interferes with imaging. Monte Carlo codes, such as MCNP (X-5 Monte Carlo Team, 2005 Revision) allow scatter to be calculatied, but these calculations are very time consuming. It would be useful to have a fast scatter estimation algorithm in a fast ray tracing code. We have been extending the …
Date: December 20, 2010
Creator: Aufderheide, M B
Object Type: Report
System: The UNT Digital Library
An Online Scheduling Algorithm with Advance Reservation for Large-Scale Data Transfers (open access)

An Online Scheduling Algorithm with Advance Reservation for Large-Scale Data Transfers

Scientific applications and experimental facilities generate massive data sets that need to be transferred to remote collaborating sites for sharing, processing, and long term storage. In order to support increasingly data-intensive science, next generation research networks have been deployed to provide high-speed on-demand data access between collaborating institutions. In this paper, we present a practical model for online data scheduling in which data movement operations are scheduled in advance for end-to-end high performance transfers. In our model, data scheduler interacts with reservation managers and data transfer nodes in order to reserve available bandwidth to guarantee completion of jobs that are accepted and confirmed to satisfy preferred time constraint given by the user. Our methodology improves current systems by allowing researchers and higher level meta-schedulers to use data placement as a service where theycan plan ahead and reserve the scheduler time in advance for their data movement operations. We have implemented our algorithm and examined possible techniques for incorporation into current reservation frameworks. Performance measurements confirm that the proposed algorithm is efficient and scalable.
Date: May 20, 2010
Creator: Balman, Mehmet & Kosar, Tevfik
Object Type: Report
System: The UNT Digital Library
Developmental long trace profiler using optimally aligned mirror based pentaprism (open access)

Developmental long trace profiler using optimally aligned mirror based pentaprism

A low-budget surface slope measuring instrument, the Developmental Long Trace Profiler (DLTP), was recently brought into operation at the Advanced Light Source Optical Metrology Laboratory. The instrument is based on a precisely calibrated autocollimator and a movable pentaprism. The capability of the DLTP to achieve sub-microradian surface slope metrology has been verified via cross-comparison measurements with other high-performance slope measuring instruments when measuring the same high-quality test optics. In the present work, a further improvement of the DLTP is achieved by replacing the existing bulk pentaprism with a specially designed mirror based pentaprism. A mirror based pentaprism offers the possibility to eliminate systematic errors introduced by inhomogeneity of the optical material and fabrication imperfections of a bulk pentaprism. We provide the details of the mirror based pentaprism design and describe an original experimental procedure for precision mutual alignment of the mirrors. The algorithm of the alignment procedure and its efficiency are verified with rigorous ray tracing simulations. Results of measurements of a spherically curved test mirror and a flat test mirror using the original bulk pentaprism are compared with measurements using the new mirror based pentaprism, demonstrating the improved performance.
Date: December 20, 2010
Creator: Barber, Samuel K.; Morrison, Gregory Y.; Yashchuk, Valeriy V.; Gubarev, Mikhail V.; Geckeler, Ralf D.; Buchheim, Jana et al.
Object Type: Article
System: The UNT Digital Library
American Jihadist Terrorism: Combating a Complex Threat (open access)

American Jihadist Terrorism: Combating a Complex Threat

Between May 2009 and August 2010, arrests were made for 19 "homegrown," jihadist-inspired terrorist plots by American citizens or legal permanent residents of the United States. The apparent spike in such activity after May 2009 suggests that at least some Americans - even if a tiny minority - continue to be susceptible to ideologies supporting a violent form of jihad. This report describes homegrown violent jihadists and the plots and attacks that have occurred since 9/11. This report also provides official definitions for terms such as "homegrown," "jihadist," and "violent jihadist." The report also discusses the radicalization process and the forces driving violent extremist activity. It analyzes post-9/11 domestic jihadist terrorism, describes law enforcement and intelligence efforts to combat terrorism and the challenges associated with those efforts. It also outlines actions underway to build trust and partnership between community groups and government agencies and the tensions that may occur between law enforcement and engagement activities.
Date: September 20, 2010
Creator: Bjelopera, Jerome P. & Randol, Mark A.
Object Type: Report
System: The UNT Digital Library
The United Arab Emirates Nuclear Program and Proposed U.S. Nuclear Cooperation (open access)

The United Arab Emirates Nuclear Program and Proposed U.S. Nuclear Cooperation

This report provides background information on the UAE nuclear program, reviews developments to date, analyzes proposed nuclear cooperation with the United States, and discusses relevant legislative proposals and options.
Date: December 20, 2010
Creator: Blanchard, Christopher M. & Kerr, Paul K.
Object Type: Report
System: The UNT Digital Library
U.S. Foreign-Trade Zones: Trade Agreement Parity (TAP) Proposal (open access)

U.S. Foreign-Trade Zones: Trade Agreement Parity (TAP) Proposal

This report provides an introduction to U.S. Foreign Trade Zones (FTZ). The report discusses the details of the Trade Agreement Parity (TAP) proposal, the potential winners and losers under the TAP proposal, economic studies on the TAP proposal, and policy analysis on the TAP proposal.
Date: January 20, 2010
Creator: Bolle, Mary Jane
Object Type: Report
System: The UNT Digital Library
Pair-distribution function analysis of the structural valence transition in Cp{sub 2}{sup *}Yb(4,4'-Me{sub 2}-bipy) (open access)

Pair-distribution function analysis of the structural valence transition in Cp{sub 2}{sup *}Yb(4,4'-Me{sub 2}-bipy)

The Cp{sup ∗}{sub 2} Yb(L) class of compounds, where Cp{sup ∗}=pentamethylcyclopentadienyl = C{sub 5}Me{sub 5} and L is either a 1,4-diazabutadiene or bipy = 2,2′-bipyridine related ligand, have provided excellent analogies to the Kondo state on the nanoscale. Cp{sup ∗}{sub 2} Yb(4,4′-Me{sub 2}-bipy) furthers this analogy by demonstrating a valence transition as the sample is cooled below 200 K. Here, pair-distribution function (PDF) analysis of x-ray powder diffraction data demonstrate that the Cp{sup ∗}{sub 2}Yb(4,4′-Me{sub 2}-bipy) molecule is virtually unchanged through the valence transition. However, the molecule’s stacking arrangement is altered through the valence transition.
Date: July 20, 2010
Creator: Booth, C H; Bauer, E D; Bozin, E S; Billinge, S J L & Walter, M D
Object Type: Article
System: The UNT Digital Library
Coordination of Endoplasmic Reticulum (ER) Signaling During Maize Seed Development (open access)

Coordination of Endoplasmic Reticulum (ER) Signaling During Maize Seed Development

Seed storage reserves represent one of the most important sources of renewable fixed carbon and nitrogen found in nature. Seeds are well-adapted for diverting metabolic resources to synthesize storage proteins as well as enzymes and structural proteins needed for their transport and packaging into membrane bound storage protein bodies. Our underlying hypothesis is that the endoplasmic reticulum (ER) stress response provides the critical cellular control of metabolic flux required for optimal accumulation of storage reserves in seeds. This highly conserved response is a cellular mechanism to monitor the protein folding environment of the ER and restore homeostasis in the presence of unfolded or misfolded proteins. In seeds, deposition of storage proteins in protein bodies is a highly specialized process that takes place even in the presence of mutant proteins that no longer fold and package properly. The capacity of the ER to deposit these aberrant proteins in protein bodies during a period that extends several weeks provides an excellent model for deconvoluting the ER stress response of plants. We have focused in this project on the means by which the ER senses and responds to functional perturbations and the underlying intracellular communication that occurs among biosynthetic, trafficking and degradative pathways …
Date: November 20, 2010
Creator: Boston, Rebecca S.
Object Type: Report
System: The UNT Digital Library
Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2010 Regional Mussel Watch (AMB02) (open access)

Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2010 Regional Mussel Watch (AMB02)

The Puget Sound Naval Shipyard & Intermediate Maintenance Facility (PSNS&IMF) and Naval Base Kitsap-Bremerton (Shipyard) located in Bremerton, WA are committed to a culture of continuous process improvement for all aspects of Shipyard operations, including reducing the releases of hazardous materials and waste in discharges from the Shipyard. Under the Project ENVVEST Final Project Agreement, a cooperative project among PSNS&IMF, the Environmental Protection Agency (EPA), and the Washington State Department of Ecology (Ecology), and local stakeholders (US Navy, EPA and Ecology 2002) has been helping to improve the environmental quality of the Sinclair and Dyes Inlet Watershed (ENVVEST 2006). An ambient monitoring program for sediment, water, and indigenous mussels began in 2009 to assess the status and trend of ecological resources, assess the effectiveness of cleanup and pollution control measures, and determine if discharges from all sources are protective of beneficial uses including aquatic life. This document presents the 2010 chemical residue data and stable isotopes of carbon (δ13C) and nitrogen (δ15N) for the regional mussel watch stations located in Sinclair Inlet, Dyes Inlet, Port Orchard Passage, Rich Passage, Agate Passage, Liberty Bay, and Keyport Lagoon. Indigenous bivalves were collected from a small boat and/or from along the shoreline, measured, …
Date: October 20, 2010
Creator: Brandenberger, Jill M.; Kuo, Li-Jung; Suslick, Carolynn R. & Johnston, Robert K.
Object Type: Report
System: The UNT Digital Library
Automatic Fault Characterization via Abnormality-Enhanced Classification (open access)

Automatic Fault Characterization via Abnormality-Enhanced Classification

Enterprise and high-performance computing systems are growing extremely large and complex, employing hundreds to hundreds of thousands of processors and software/hardware stacks built by many people across many organizations. As the growing scale of these machines increases the frequency of faults, system complexity makes these faults difficult to detect and to diagnose. Current system management techniques, which focus primarily on efficient data access and query mechanisms, require system administrators to examine the behavior of various system services manually. Growing system complexity is making this manual process unmanageable: administrators require more effective management tools that can detect faults and help to identify their root causes. System administrators need timely notification when a fault is manifested that includes the type of fault, the time period in which it occurred and the processor on which it originated. Statistical modeling approaches can accurately characterize system behavior. However, the complex effects of system faults make these tools difficult to apply effectively. This paper investigates the application of classification and clustering algorithms to fault detection and characterization. We show experimentally that naively applying these methods achieves poor accuracy. Further, we design novel techniques that combine classification algorithms with information on the abnormality of application behavior to …
Date: December 20, 2010
Creator: Bronevetsky, G; Laguna, I & de Supinski, B R
Object Type: Article
System: The UNT Digital Library
Renewable Energy Opportunities at Fort Drum, New York (open access)

Renewable Energy Opportunities at Fort Drum, New York

This document provides an overview of renewable resource potential at Fort Drum, based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. This effort focuses on grid-connected generation of electricity from renewable energy sources and also on ground source heat pumps for heating and cooling buildings. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 Department of Defense (DoD) Renewables Assessment. The site visit to Fort Drum took place on May 4 and 5, 2010.
Date: October 20, 2010
Creator: Brown, Scott A.; Orrell, Alice C.; Solana, Amy E.; Williamson, Jennifer L.; Hand, James R.; Russo, Bryan J. et al.
Object Type: Report
System: The UNT Digital Library
Shear Strength Correlations for Kaolin/Water Slurries: A Comparison of Recent Measurements with Historical Data (open access)

Shear Strength Correlations for Kaolin/Water Slurries: A Comparison of Recent Measurements with Historical Data

This report documents testing funded by CH2M Hill Plateau Remediation and performed by Pacific Northwest National Laboratory (PNNL) in collaboration with Fauske and Associates, LLC (FAI) to determine the behavior of vessel spanning bubbles. The shear strengths of four samples of kaolin/water mixtures obtained by PNNL from FAI were measured and are reported here. The measured shear strengths of these samples were then used to determine how the Rassat correlation fit these new measurements or if a new correlation was needed. These results were then compared with previously reported data.
Date: January 20, 2010
Creator: Burns, Carolyn A.; Gauglitz, Phillip A. & Russell, Renee L.
Object Type: Report
System: The UNT Digital Library
"Don't Ask, Don't Tell": Military Policy and the Law on Same-Sex Behavior (open access)

"Don't Ask, Don't Tell": Military Policy and the Law on Same-Sex Behavior

This report describes the "Don't Ask, Don't Tell" military policy, which holds that the presence in the armed forces of persons who demonstrate a propensity or intent to engage in same-sex acts would create an unacceptable risk to the high standards of morale, good order and discipline, and unit cohesion which are the essence of military capability. Under this policy, but not the law, service members are not to be asked about nor allowed to discuss their "same-sex orientation." This report also describes recent efforts by certain Members of Congress to amending this policy.
Date: December 20, 2010
Creator: Burrelli, David F.
Object Type: Report
System: The UNT Digital Library
Simulations of Alpha Wall Load in ITER. Final report (open access)

Simulations of Alpha Wall Load in ITER. Final report

The partially DOE funded International Thermonuclear Experimental Reactor (ITER) will produce massive amounts of energetic charged alpha particles, which are imperfectly confined by a strong magnetic field. The wall of the experiment is designed to withstand an estimated wall load from these fusion alpha particles, but the accuracy of this estimate needs to be improved to avoid potentially catastrophic surprises when the experiment becomes operational. We have added a more accurate, gyro-dynamic model of particle motion to the existing drift-dynamic model in the DELTA5D simulation software used for the project. We have also added the ability to load a detailed engineering model of the wall and use it in the simulations.
Date: October 20, 2010
Creator: Carlsson, Johan
Object Type: Report
System: The UNT Digital Library
Afghanistan Casualties: Military Forces and Civilians (open access)

Afghanistan Casualties: Military Forces and Civilians

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: December 20, 2010
Creator: Chesser, Susan G.
Object Type: Report
System: The UNT Digital Library
Emergency Funding for Agriculture: A Brief History of Supplemental Appropriations, FY1989-FY2009 (open access)

Emergency Funding for Agriculture: A Brief History of Supplemental Appropriations, FY1989-FY2009

This report provides a table which lists supplemental appropriations for Agriculture. From FY1989 through FY2009, 39 appropriations, authorization, or farm disaster acts added approximately $68.7 billion in supplemental funding for U.S. Department of Agriculture (USDA) programs (excluding the Forest Service, which is funded annually under the Interior appropriations bill). Approximately $50.2 billion, or just under three-fourths of the total amount, was provided within the last 10 years.
Date: January 20, 2010
Creator: Chite, Ralph M.
Object Type: Report
System: The UNT Digital Library
CLOSE-OUT REPORT FOR HYS ELECTROLYZER COMPONENT DEVELOPMENT WORK AT SAVANNAH RIVER NATIONAL LABORATORY (open access)

CLOSE-OUT REPORT FOR HYS ELECTROLYZER COMPONENT DEVELOPMENT WORK AT SAVANNAH RIVER NATIONAL LABORATORY

The chemical stability, sulfur dioxide transport, ionic conductivity, and electrolyzer performance have been measured for several commercially available and experimental proton exchange membranes (PEMs) for use in a sulfur dioxide depolarized electrolyzer (SDE). The SDE's function is to produce hydrogen by using the Hybrid Sulfur (HyS) Process, a sulfur based electrochemical/thermochemical hybrid cycle. Membrane stability was evaluated using a screening process where each candidate PEM was heated at 80 C in 63.5 wt. % H{sub 2}SO{sub 4} for 24 hours. Following acid exposure, chemical stability for each membrane was evaluated by FTIR using the ATR sampling technique. Membrane SO{sub 2} transport was evaluated using a two-chamber permeation cell. SO{sub 2} was introduced into one chamber whereupon SO{sub 2} transported across the membrane into the other chamber and oxidized to H{sub 2}SO{sub 4} at an anode positioned immediately adjacent to the membrane. The resulting current was used to determine the SO{sub 2} flux and SO{sub 2} transport. Additionally, membrane electrode assemblies (MEAs) were prepared from candidate membranes to evaluate ionic conductivity and selectivity (ionic conductivity vs. SO{sub 2} transport) which can serve as a tool for selecting membranes. MEAs were also performance tested in a HyS electrolyzer measuring current density versus …
Date: January 20, 2010
Creator: Colon-Mercado, H.; Elvington, M. & Hobbs, D.
Object Type: Report
System: The UNT Digital Library
Analysis of Wind Power and Load Data at Multiple Time Scales (open access)

Analysis of Wind Power and Load Data at Multiple Time Scales

In this study we develop and apply new methods of data analysis for high resolution wind power and system load time series, to improve our understanding of how to characterize highly variable wind power output and the correlations between wind power and load. These methods are applied to wind and load data from the ERCOT region, and wind power output from the PJM and NYISO areas. We use a wavelet transform to apply mathematically well-defined operations of smoothing and differencing to the time series data. This approach produces a set of time series of the changes in wind power and load (or ?deltas?), over a range of times scales from a few seconds to approximately one hour. A number of statistical measures of these time series are calculated. We present sample distributions, and devise a method for fitting the empirical distribution shape in the tails. We also evaluate the degree of serial correlation, and linear correlation between wind and load. Our examination of the data shows clearly that the deltas do not follow a Gaussian shape; the distribution is exponential near the center and appears to follow a power law for larger fluctuations. Gaussian distributions are frequently used in modeling …
Date: December 20, 2010
Creator: Coughlin, Katie & Eto, J.H.
Object Type: Report
System: The UNT Digital Library