Foreign Corrupt Practices Act (FCPA): Congressional Interest and Executive Enforcement (open access)

Foreign Corrupt Practices Act (FCPA): Congressional Interest and Executive Enforcement

This report briefly discusses the Foreign Corrupt Practice Act of 1977 (FCPA), which was intended to prevent corporate bribery of foreign officials. Criticisms of the act's operation and scope began almost immediately after its passage and have continued. This report discusses these criticisms.
Date: October 21, 2010
Creator: Seitzinger, Michael V.
Object Type: Report
System: The UNT Digital Library
Nuclear Energy Policy (open access)

Nuclear Energy Policy

This report discusses nuclear energy issues currently facing Congress, such as federal incentives for new commercial reactors, radioactive waste management policy, research and development priorities, power plant safety and regulation, nuclear weapons proliferation, and security against terrorist attacks.
Date: October 21, 2010
Creator: Holt, Mark
Object Type: Report
System: The UNT Digital Library
Information Security: National Archives and Records Administration Needs to Implement Key Program Elements and Controls (open access)

Information Security: National Archives and Records Administration Needs to Implement Key Program Elements and Controls

A letter report issued by the Government Accountability Office with an abstract that begins "The National Archives and Records Administration (NARA) is responsible for preserving access to government documents and other records of historical significance and overseeing records management throughout the federal government. NARA relies on the use of information systems to receive, process, store, and track government records. As such, NARA is tasked with preserving and maintaining access to increasing volumes of electronic records. GAO was asked to determine whether NARA has effectively implemented appropriate information security controls to protect the confidentiality, integrity, and availability of the information and systems that support its mission. To do this, GAO tested security controls over NARA's key networks and systems; reviewed policies, plans, and reports; and interviewed officials at nine sites."
Date: October 21, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
"Don't Ask, Don't Tell": A Legal Analysis (open access)

"Don't Ask, Don't Tell": A Legal Analysis

In recent years, several Members of Congress have expressed interest in amending "Don't Ask, Don't Tell," (DADT) a legislation that requires those of homosexual orientation in the military to keep quiet about their orientation in order to maintain "morale, good order and discipline, and unit cohesion." At least two bills that would repeal the law and replace it with a policy of nondiscrimination on the basis of sexual orientation - H.R. 1283 and S. 3065 - have been introduced in the 111th Congress. This report provides a legal analysis of the various constitutional challenges that have been brought against DADT; for a policy analysis, see CRS Report R40782, "Don't Ask, Don't Tell": Military Policy and the Law on Same-Sex Behavior, by David F. Burrelli.
Date: October 21, 2010
Creator: Feder, Jody
Object Type: Report
System: The UNT Digital Library
An Assessment of Molecular Dynamic Force Fields for Silica for Use in Simulating Laser Damage Mitigation (open access)

An Assessment of Molecular Dynamic Force Fields for Silica for Use in Simulating Laser Damage Mitigation

We compare force fields (FF's) that have been used in molecular dynamic (MD) simulations of silica in order to assess their applicability for use in simulating IR-laser damage mitigation. Although pairwise FF?s obtained by fitting quantum mechanical calculations such as the BKS and CHIK potentials have been shown to reproduce many of the properties of silica including the stability of silica polymorphs and the densification of the liquid, we show that melting temperatures and fictive temperatures are much too high. Softer empirical force fields give liquid and glass properties at experimental temperatures but may not predict all properties important to laser mitigation experiments.
Date: October 21, 2010
Creator: Soules, T F; Gilmer, G H; Matthews, M J; Stolken, J S & Feit, M D
Object Type: Article
System: The UNT Digital Library
Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry An ENERGY STAR(R) Guide for Energy and Plant Managers (open access)

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry An ENERGY STAR(R) Guide for Energy and Plant Managers

Energy is an important cost factor in the U.S iron and steel industry. Energy efficiency improvement is an important way to reduce these costs and to increase predictable earnings, especially in times of high energy price volatility. There are a variety of opportunities available at individual plants in the U.S. iron and steel industry to reduce energy consumption in a cost-effective manner. This Energy Guide discusses energy efficiency practices and energy-efficient technologies that can be implemented at the component, process, facility, and organizational levels. A discussion of the structure, production trends, energy consumption, and greenhouse gas emissions of the iron and steel industry is provided along with a description of the major process technologies used within the industry. Next, a wide variety of energy efficiency measures are described. Many measure descriptions include expected savings in energy and energy-related costs, based on case study data from real-world applications in the steel and related industries worldwide. Typical measure payback periods and references to further information in the technical literature are also provided, when available. The information in this Energy Guide is intended to help energy and plant managers in the U.S. iron and steel industry reduce energy consumption and greenhouse gas emissions …
Date: October 21, 2010
Creator: Worrell, Ernst; Blinde, Paul; Neelis, Maarten; Blomen, Eliane & Masanet, Eric
Object Type: Report
System: The UNT Digital Library

U.S. Fuel Cell Electric Vehicle Demonstration Project 2010 Status Update

This presentation summarizes U.S. Fuel Cell Electric Vehicle Demonstration Project 2010 Status Update.
Date: October 21, 2010
Creator: Wipke, K.; Sprik, S.; Kurtz, J. & Ramsden, T.
Object Type: Presentation
System: The UNT Digital Library

Durability of Poly (Methyl Methacrylate) Lenses Used in Concentrating Photovoltaics

This presentation reports the findings of NREL's screen test to characterize the durability of poly (methyl methacrylate) lenses used in concentrated photovoltaics.
Date: October 21, 2010
Creator: Miller, D.; Gedvilas, L.; To, B.; Kennedy, C. & Kurtz, S.
Object Type: Presentation
System: The UNT Digital Library
Memory-bit selection and recording by rotating fields in vortex-core cross-point architecture (open access)

Memory-bit selection and recording by rotating fields in vortex-core cross-point architecture

In one of our earlier studies [Appl. Phys. Lett. 92, 022509 (2008)], we proposed a concept of robust information storage, recording and readout, which can be implementaed in nonvolatile magnetic random-access memories and is based on the energetically degenerated twofold ground states of vortex-core magnetizations. In the present study, we experimentally demonstrate reliable memory-bit selection and information recording in vortex-core cross-point architecture, specifically using a two-by-two vortex-state disk array. In order to efficiently switch a vortex core positioned at the intersection of crossed electrodes, two orthogonal addressing electrodes are selected, and then two Gaussian pulse currents of optimal pulse width and time delay are applied. Such tailored pulse-type rotating magnetic fields which occurs only at the selected intersection is prerequisite for a reliable memory-bit selection and low-power-consumption recording of information in the existing cross-point architecture.
Date: October 21, 2010
Creator: Yu, Young-Sang; Jung, Hyunsung; Lee, Ki-Suk; Fischer, Peter & Kim, Sang-Koog
Object Type: Article
System: The UNT Digital Library
Bimetallic Lithium Borohydrides Toward Reversible Hydrogen Storage (open access)

Bimetallic Lithium Borohydrides Toward Reversible Hydrogen Storage

Borohydrides such as LiBH{sub 4} have been studied as candidates for hydrogen storage because of their high hydrogen contents (18.4 wt% for LiBH{sub 4}). Limited success has been made in reducing the dehydrogenation temperature by adding reactants such as metals, metal oxides and metal halides. However, full rehydrogenation has not been realized because of multi-step decomposition processes and the stable intermediate species produced. It is suggested that adding second cation in LiBH{sub 4} may reduce the binding energy of B-H. The second cation may also provide the pathway for full rehydrogenation. In this work, several bimetallic borohydrides were synthesized using wet chemistry, high pressure reactive ball milling and sintering processes. The investigation found that the thermodynamic stability was reduced, but the full rehydrogenation is still a challenge. Although our experiments show the partial reversibility of the bimetallic borohydrides, it was not sustainable during dehydriding-rehydriding cycles because of the accumulation of hydrogen inert species.
Date: October 21, 2010
Creator: Au, M.
Object Type: Article
System: The UNT Digital Library
Energy Efficiency Services Sector: Workforce Size and Expectations for Growth (open access)

Energy Efficiency Services Sector: Workforce Size and Expectations for Growth

None
Date: October 21, 2010
Creator: Goldman, Charles; Fuller, Merrian C.; Stuart, Elizabeth; Peters, Jane S.; McRae, Marjorie; Albers, Nathaniel et al.
Object Type: Report
System: The UNT Digital Library
Atmospheric Modeling in Support of a Roadway Accident (open access)

Atmospheric Modeling in Support of a Roadway Accident

The United States Forest Service-Savannah River (USFS) routinely performs prescribed fires at the Savannah River Site (SRS), a Department of Energy (DOE) facility located in southwest South Carolina. This facility covers {approx}800 square kilometers and is mainly wooded except for scattered industrial areas containing facilities used in managing nuclear materials for national defense and waste processing. Prescribed fires of forest undergrowth are necessary to reduce the risk of inadvertent wild fires which have the potential to destroy large areas and threaten nuclear facility operations. This paper discusses meteorological observations and numerical model simulations from a period in early 2002 of an incident involving an early-morning multicar accident caused by poor visibility along a major roadway on the northern border of the SRS. At the time of the accident, it was not clear if the limited visibility was due solely to fog or whether smoke from a prescribed burn conducted the previous day just to the northwest of the crash site had contributed to the visibility. Through use of available meteorological information and detailed modeling, it was determined that the primary reason for the low visibility on this night was fog induced by meteorological conditions.
Date: October 21, 2010
Creator: Buckley, R. & Hunter, C.
Object Type: Article
System: The UNT Digital Library
Comparing the use of 4.6 um lasers versus 10.6 um lasers for mitigating damage site growth on fused silica surfaces (open access)

Comparing the use of 4.6 um lasers versus 10.6 um lasers for mitigating damage site growth on fused silica surfaces

The advantage of using mid-infrared (IR) 4.6 {micro}m lasers, versus far-infrared 10.6 {micro}m lasers, for mitigating damage growth on fused silica is investigated. In contrast to fused silica's high absorption at 10.6 {micro}m, silica absorption at 4.6 {micro}m is two orders of magnitude less. The much reduced absorption at 4.6 {micro}m enables deep heat penetration into fused silica when it is heated using the mid-IR laser, which in turn leads to more effective mitigation of damage sites with deep cracks. The advantage of using mid-IR versus far-IR laser for damage growth mitigation under non-evaporative condition is quantified by defining a figure of merit (FOM) that relates the crack healing depth to laser power required. Based on our FOM, we show that for damage cracks up to at least 500 {micro}m in depth, mitigation using a 4.6 {micro}m mid-IR laser is more efficient than mitigation using a 10.6 {micro}m far-IR laser.
Date: October 21, 2010
Creator: Yang, S T; Matthews, M J; Elhadj, S; Cooke, D; Guss, G M; Draggoo, V G et al.
Object Type: Article
System: The UNT Digital Library
An Improved Method of Mitigating Laser Induced Surface Damage Growth in Fused Silica Using a Rastered, Pulsed CO2 Laser (open access)

An Improved Method of Mitigating Laser Induced Surface Damage Growth in Fused Silica Using a Rastered, Pulsed CO2 Laser

A new method of mitigating (arresting) the growth of large (>200 m diameter and depth) laser induced surface damage on fused silica has been developed that successfully addresses several issues encountered with our previously-reported large site mitigation technique. As in the previous work, a tightly-focused 10.6 {micro}m CO{sub 2} laser spot is scanned over the damage site by galvanometer steering mirrors. In contrast to the previous work, the laser is pulsed instead of CW, with the pulse length and repetition frequency chosen to allow substantial cooling between pulses. This cooling has the important effect of reducing the heat-affected zone capable of supporting thermo-capillary flow from scale lengths on the order of the overall scan pattern to scale lengths on the order of the focused laser spot, thus preventing the formation of a raised rim around the final mitigation site and its consequent down-stream intensification. Other advantages of the new method include lower residual stresses, and improved damage threshold associated with reduced amounts of redeposited material. The raster patterns can be designed to produce specific shapes of the mitigation pit including cones and pyramids. Details of the new technique and its comparison with the previous technique will be presented.
Date: October 21, 2010
Creator: Bass, I L; Guss, G M; Nostrand, M J & Wegner, P L
Object Type: Article
System: The UNT Digital Library
Recreation Fees Under the Federal Lands Recreation Enhancement Act (open access)

Recreation Fees Under the Federal Lands Recreation Enhancement Act

None
Date: October 21, 2010
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Densification and residual stress induced by CO2 laser-based mitigation of SiO2 surfaces (open access)

Densification and residual stress induced by CO2 laser-based mitigation of SiO2 surfaces

Knowing the ultimate surface morphology resulting from CO{sub 2} laser mitigation of induced laser damage is important both for determining adequate treatment protocols, and for preventing deleterious intensification upon subsequent illumination of downstream optics. Physical effects such as evaporation, viscous flow and densification can strongly affect the final morphology of the treated site. Evaporation is a strong function of temperature and will play a leading role in determining pit shapes when the evaporation rate is large, both because of material loss and redeposition. Viscous motion of the hot molten material during heating and cooling can redistribute material due to surface tension gradients (Marangoni effect) and vapor recoil pressure effects. Less well known, perhaps, is that silica can densify as a result of structural relaxation, to a degree depending on the local thermal history. The specific volume shrinkage due to structural relaxation can be mistaken for material loss due to evaporation. Unlike evaporation, however, local density change can be reversed by post annealing. All of these effects must be taken into account to adequately describe the final morphology and optical properties of single and multiple-pass mitigation protocols. We have investigated, experimentally and theoretically, the significance of such densification on residual stress …
Date: October 21, 2010
Creator: Feit, M D; Matthews, M J; Soules, T F & Stolken, J S
Object Type: Article
System: The UNT Digital Library
Federal Register, Volume 75, Number 203, October 21, 2010, Pages 64949-65212 (open access)

Federal Register, Volume 75, Number 203, October 21, 2010, Pages 64949-65212

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: October 21, 2010
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
501(c)(4) Organizations and Campaign Activity: Analysis Under Tax and Campaign Finance Laws (open access)

501(c)(4) Organizations and Campaign Activity: Analysis Under Tax and Campaign Finance Laws

This report discusses requirements to maintain 501(c)(4) status, potential tax consequences, and reporting requirements to file with the Internal Revenue Service.
Date: October 21, 2010
Creator: Lunder, Erika K. & Whitaker, L. Paige
Object Type: Report
System: The UNT Digital Library