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Federal Bureau of Investigation: Weak Controls over Trilogy Project Led to Payment of Questionable Contractor Costs and Missing Assets
Testimony issued by the Government Accountability Office with an abstract that begins "The Trilogy project--initiated in 2001--is the Federal Bureau of Investigation's (FBI) largest information technology (IT) upgrade to date. While ultimately successful in providing updated IT infrastructure and systems, Trilogy was not a success with regard to upgrading FBI's investigative applications. Further, the project was plagued with missed milestones and escalating costs, which eventually totaled nearly $537 million. This testimony focuses on (1) the internal controls over payments to contractors, (2) payments of questionable contractor costs, and (3) FBI's accountability for assets purchased with Trilogy project funds."
Date:
May 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Overseas Presence: Cost Analyses and Performance Measures Are Needed to Demonstrate the Full Potential of Providing Embassy Support Remotely
A letter report issued by the Government Accountability Office with an abstract that begins "The President has emphasized the importance of safety, efficiency, and accountability in U.S. government staffing overseas by designating the achievement of a rightsized overseas presence as a part of the President's Management Agenda. One of the elements of rightsizing involves relocating certain administrative support functions from overseas posts to the United States or regional centers overseas, which can provide cheaper, safer, or more effective support. This report (1) reviews State's efforts in providing administrative support from remote locations, (2) identifies the challenges it faces in doing so, and (3) outlines the potential advantages and concerns associated with providing support remotely."
Date:
May 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Financial Audit: Federal Deposit Insurance Corporation Funds' 2005 and 2004 Financial Statements
A letter report issued by the Government Accountability Office with an abstract that begins "GAO is required to annually audit the financial statements of the Bank Insurance Fund (BIF), Savings Association Insurance Fund (SAIF), and FSLIC Resolution Fund (FRF), which are administered by the Federal Deposit Insurance Corporation (FDIC). GAO is responsible for obtaining reasonable assurance about whether FDIC's financial statements for BIF, SAIF, and FRF are presented fairly in all material respects, in conformity with U.S. generally accepted accounting principles, and whether FDIC maintained effective internal control over financial reporting and compliance. Also, GAO is responsible for testing FDIC's compliance with selected laws and regulations. Created in 1933 to insure bank deposits and promote sound banking practices, FDIC plays an important role in maintaining public confidence in the nation's financial system. In 1989, legislation to reform the federal deposit insurance system created three funds to be administered by FDIC: BIF and SAIF, which protect bank and savings deposits, and FRF, which was created to close out the business of the former Federal Savings and Loan Insurance Corporation."
Date:
March 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Chemical Regulation: Actions are Needed to Improve the Effectiveness of EPA's Chemical Review Program
Testimony issued by the Government Accountability Office with an abstract that begins "Chemicals play an important role in everyday life, but some may be harmful to human health and the environment. Chemicals are used to produce items widely used throughout society, such as cleansers and plastics as well as industrial solvents and additives. However, some chemicals, such as lead and mercury, are highly toxic at certain doses and need to be regulated because of health and safety concerns. In 1976, the Congress passed the Toxic Substances Control Act (TSCA) to authorize the Environmental Protection Agency (EPA) to control chemicals that pose an unreasonable risk to human health or the environment. This testimony is based on GAO's June 2005 report, Chemical Regulation: Options Exist to Improve EPA's Ability to Assess Health Risks and Manage Its Chemical Review Program (GAO-05-458). GAO's report describes EPA's efforts to (1) assess chemicals used in commerce, (2) control the use of chemicals not yet in commerce, and (3) publicly disclose information provided by chemical companies under TSCA. GAO recommended that the Congress consider providing EPA additional authorities under TSCA to improve EPA's ability to assess chemical risks, and that the EPA Administrator take several actions to …
Date:
August 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Border Security: Continued Weaknesses in Screening Entrants into the United States
Testimony issued by the Government Accountability Office with an abstract that begins "Currently, U.S. citizens are not required to present a passport when entering the United States from countries in the Western Hemisphere. However, U.S. citizens are required to establish citizenship to a CBP officer's satisfaction. On its Web site, U.S. Customs and Border Protection (CBP) advises U.S. citizens that an officer may ask for identification documents as proof of citizenship, including birth certificates or baptismal records and a photo identification document. In 2003, we testified that CBP officers were not readily capable of identifying whether individuals seeking entry into the United States were using counterfeit identification to prove citizenship. Specifically, our agents were able to easily enter the United States from Canada and Mexico using fictitious names and counterfeit driver's licenses and birth certificates. Later in 2003 and 2004, we continued to be able to successfully enter the United States using counterfeit identification at land border crossings, but were denied entry on one occasion. Because of Congress's concerns that these weaknesses could possibly be exploited by terrorists or others involved in criminal activity, Congress requested that we assess the current status of security at the nation's borders. Specifically, Congress …
Date:
August 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Veterans' Employment and Training Service: Greater Accountability and Other Labor Actions Needed to Better Serve Veterans
Testimony issued by the Government Accountability Office with an abstract that begins "The number of service members leaving active duty is likely to increase by 200,000 yearly, according to the Department of Labor. To improve employment and training services for veterans and to encourage employers to hire them, Congress passed the Jobs for Veterans Act in 2002, which reformed Labor's Disabled Veterans' Outreach Program (DVOP) and Local Veterans' Employment Representative (LVER) program. This testimony summarizes GAO's recent review of progress implementing the act, including the development of new staff roles and responsibilities, incentive awards, and performance accountability system. GAO examined (1) actions taken to improve performance and accountability since the law's enactment and any associated challenges, (2) whether available data indicate that such action has resulted in improved employment outcomes for veterans, and (3) factors affecting program oversight an accountability."
Date:
February 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Capitol Visitor Center: Update on Status of Project's Schedule and Cost As of August 2, 2006
Testimony issued by the Government Accountability Office with an abstract that begins "Our remarks will focus on the Architect of the Capitol's (AOC) progress in achieving selected project milestones and in managing the project's schedule since Congress's June 28, 2006, hearing on the project. As part of this discussion, we will address a number of key challenges and risks that continue to face the project, as well as actions AOC has taken or plans to take to address these risks. In addition, we will discuss the status of the project's costs and funding. Our remarks today are based on our review of schedules and financial reports for the Capitol Visitor Center (CVC) project and related records maintained by AOC and its construction management contractor, Gilbane Building Company; our observations on the progress of work at the CVC construction site; and our discussions with the CVC team (AOC and its major CVC contractors), AOC's Chief Fire Marshal, and representatives from the U.S. Capitol Police, the General Services Administration, and the Office of Compliance. We also reviewed AOC's construction management contractor's periodic schedule assessments and daily reports on the progress of interior wall and floor stonework."
Date:
August 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
United Nations: Oil for Food Program Provides Lessons for Future Sanctions and Ongoing Reform
Testimony issued by the Government Accountability Office with an abstract that begins "In 1996, the United Nations (UN) and Iraq began the Oil for Food program after sanctions were imposed in 1990. The program was intended to allow the Iraqi government to sell oil to pay for humanitarian goods and prevent it from obtaining goods for military purposes. More than $67 billion in oil revenue was obtained through the program, with $31 billion in assistance delivered to Iraq. Internal controls serve as the first line of defense in preventing fraud, waste, and abuse and in helping agencies achieve desired outcomes. GAO assesses (1) the control environment the UN established for managing the sanctions and Oil for Food program and (2) other key internal control elements. In addition, we provide observations on the lessons learned from the program."
Date:
May 2, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Metastable Solid Solution Phases in the LiFePO4/FePO4 System
None
Date:
January 2, 2006
Creator:
Chen, Guoying Chen; Song, Xiangyun & Richardson, Thomas J.
Object Type:
Article
System:
The UNT Digital Library
A Core-Particle Model for Periodically Focused Ion Beams with Intense Space-Charge
A core-particle model is derived to analyze transverse orbits of test particles evolving in the presence of a core ion beam described by the KV distribution. The core beam has uniform density within an elliptical cross-section and can be applied to model both quadrupole and solenoidal focused beams in periodic or aperiodic lattices. Efficient analytical descriptions of electrostatic space-charge fields external to the beam core are derived to simplify model equations. Image charge effects are analyzed for an elliptical beam centered in a round, conducting pipe to estimate model corrections resulting from image charge nonlinearities. Transformations are employed to remove coherent utter motion associated with oscillations of the ion beam core due to rapidly varying, linear applied focusing forces. Diagnostics for particle trajectories, Poincare phase-space projections, and single-particle emittances based on these transformations better illustrate the effects of nonlinear forces acting on particles evolving outside the core. A numerical code has been written based on this model. Example applications illustrate model characteristics. The core-particle model described has recently been applied to identify physical processes leading to space-charge transport limits for an rms matched beam in a periodic quadrupole focusing channel [Lund and Chawla, Nuc. Instr. and Meth. A 561, 203 …
Date:
August 2, 2006
Creator:
Lund, S M; Barnard, J J; Bukh, B; Chawla, S R & Chilton, S H
Object Type:
Article
System:
The UNT Digital Library
DiMES Studies of Temperature Dependence of Carbon Erosion and Re-Deposition in the DIII-D Divertor
A strong effect of a moderately elevated surface temperature on net carbon deposition and deuterium co-deposition in the DIII-D divertor was observed under detached conditions. A DiMES sample with a gap 2 mm wide and 18 mm deep was exposed to lower-single-null (LSN) L-mode plasmas first at room temperature, and then at 200 C. At the elevated temperature, deuterium co-deposition in the gap was reduced by an order of magnitude. At the plasma-facing surface of the heated sample net carbon erosion was measured at a rate of 3 nm/s, whereas without heating net deposition is normally observed under detachment. In a related experiment three sets of molybdenum mirrors recessed 2 cm below the divertor floor were exposed to identical LSN ELMy H-mode discharges. The first set of mirrors exposed at ambient temperature exhibited net carbon deposition at a rate of up to 3.7 nm/s and suffered a significant drop in reflectivity. In contrast, two other mirror sets exposed at elevated temperatures between 90 C and 175 C exhibited virtually no carbon deposition.
Date:
October 2, 2006
Creator:
Rudakov, D.; Jacob, W.; Krieger, K.; Litnovsky, A.; Philipps, V.; West, W. et al.
Object Type:
Article
System:
The UNT Digital Library
High Thermal Conductivity Carbon Foam used for the Thermal Management of Engine Oil
The need for maintaining a lower specific engine oil temperature is essential in enhancing the longevity of the oil and of the engine and its components. By decreasing the engine oil temperature the oil is able to perform its job more efficiently. It is proposed to use the carbon foam, with its exceptional thermal management capabilities, to aid in reducing and stabilizing the engine oil temperature during steady state operation. Also, it is possible to use the carbon foam to heat the engine oil during startup to reduce emissions and possibly engine wear. The mesophase pitch derived carbon foam, developed at Oak Ridge National Laboratory, is a material that offers excellent thermal management capability. The foam has an open cell structure (0.98 fraction open porosity) with graphitic ligaments aligned parallel to the cell walls. The alignment of the graphitic ligaments in a three dimensional array gives the foam homogeneous thermal properties, unlike graphite fibers. The bulk thermal conductivity of the foam has been measured to be 175 W/m{center_dot}K, placing it on the level of 6061 aluminum, which has a bulk thermal conductivity of 180 W/m{center_dot}K. Copper has a bulk thermal conductivity over two times higher, at 400 W/m{center_dot}K. The proposed …
Date:
February 2, 2006
Creator:
Ott, R. D.; McMillan, A. D. & Choudhury, A.
Object Type:
Report
System:
The UNT Digital Library
Cleanup Verification Package for the 118-F-7, 100-F Miscellaneous Hardware Storage Vault
This cleanup verification package documents completion of remedial action for the 118-F-7, 100-F Miscellaneous Hardware Storage Vault. The site consisted of an inactive solid waste storage vault used for temporary storage of slightly contaminated reactor parts that could be recovered and reused for the 100-F Area reactor operations.
Date:
November 2, 2006
Creator:
Appel, M. J.
Object Type:
Report
System:
The UNT Digital Library
High Bandwidth Data Recording Systems for Pulsed Power and Laser Produced Plasma Experiments.
We present two high bandwidth data transmission and recording systems for the measurement of transient signals during pulsed power and laser produced plasmas. These systems use fiber optic cables to transmit analog data over long distances to high bandwidth digitizing oscilloscopes. One system is based on the direct modulation of a laser diode and has a bandwidth of 1.5 GHz. The other system is based upon a fiber-optic Mach-Zehnder modulator and has a bandwidth of 12 GHz, and is limited by the photo receiver. The signals are recorded on commercial digitizing oscilloscopes that have approximately 6 effective bits. The transmission systems use many off-the-shelf components from the telecommunications industry and thus have a high reliability and a moderate cost. Results from recent measurements will be presented. Investigation of the reduction in optical transmission by the fibers during exposure to high dose radiation will also be discussed.
Date:
May 2, 2006
Creator:
May, M. J.; Clancy, T.; Fittinghoff, D.; Halvorson, C.; MIlls, T.; Nikitin, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Chemical Force Microscopy of Chemical and Biological Interactions
Interactions between chemical functionalities define outcomes of the vast majority of important events in chemistry, biology and materials science. Chemical Force Microscopy (CFM)--a technique that uses direct chemical functionalization of AFM probes with specific functionalities--allows researchers to investigate these important interactions directly. We review the basic principles of CFM, some examples of its application, and theoretical models that provide the basis for understanding the experimental results. We also emphasize application of modern kinetic theory of non-covalent interactions strength to the analysis of CFM data.
Date:
January 2, 2006
Creator:
Noy, A
Object Type:
Article
System:
The UNT Digital Library
Toward a Mesoscale Model for the Dynamics of Polymer Solutions
To model entire microfluidic systems containing solvated polymers we argue that it is necessary to have a numerical stability constraint governed only by the advective CFL condition. Advancements in the treatment of Kramers bead-rod polymer models are presented to enable tightly-coupled fluid-particle algorithms in the context of system-level modeling.
Date:
October 2, 2006
Creator:
Miller, G H & Trebotich, D
Object Type:
Article
System:
The UNT Digital Library
Ion Beam Deposition of (NbTa)2O5/SiO2 Multilayers for High-Efficiency Dielectric Gratings for High Average Power Laser Systems Operating at 800 nm Central Wavelength
The ion beam deposition of (NbTa)2O5 has been investigated for realizing high reflectance multilayer stacks of high damage threshold for applications in the engineering of dielectric gratings for use at 800 nm. Deposition conditions were optimized to yield fully oxidized films as determined from x-ray photoelectron spectroscopy (XPS). The film properties were also investigated using spectroscopic ellipsometry, and spectrophotometry to determine their refractive index and thickness respectively. Damage threshold testing was performed on single films using an amplified Ti:Sapphire laser producing a train of 170 ps pulses at a wavelength of 800 nm with an average energy of 100 mJ. The laser output was focused at the surface of the samples via a 0.5 m focal length lens to generate fluences ranging from 0 to 9 J/cm{sup 2}. At the optimum deposition conditions for highest optical quality and damage threshold, high reflector stacks of (NbTa){sub 2}O{sub 5}/SiO2 were fabricated. These stacks were employed to fabricate dielectric gratings with 1740 l/mm for use with 800 nm light. At an input angle of 8{sup o} from Littrow and a wavelength from 770 to 830 nm, >90% diffraction efficiency is achieved, with peak diffraction efficiency of >97%. The demonstration of dielectric gratings at …
Date:
June 2, 2006
Creator:
Menoni, C. S.; Patel, D.; Brizuela, F.; Rocca, J. J.; Nguyen, H. T. & Britten, J. A.
Object Type:
Article
System:
The UNT Digital Library
The PEP-II Project: Low-Energy Ring Design and Project Status
We describe the present status of the PEP-II project. The project comprises four major systems: Injector, High-Energy Ring (HER), Low-Energy Ring (LER), and Interaction Region (IR). We focus in detail on the design of the LER, as its parameters and requirements are most closely related to those required for the Beijing Tau-Charm Factory rings. The PEP-II LER is a high-current, 3.1-GeV positron ring mounted above the 9-GeV HER. The LER uses a wiggler located in one of its six straight sections to provide emittance control and additional damping. We describe the rather complicated IR, which must transport the LER beam into the plane of the HER, focus it to a common beam size, and separate the beams after the head-on collisions. Both permanent magnet and conventional electromagnets are used in this area. The LER lattice has now adopted a simplified non-interleaved sextupole correction scheme that has reduced the required number of sextupoles substantially. We describe the LER vacuum system, one of the most challenging subsystems in PEP-II. It employs several technologies. In the arcs, aluminum extrusions and titanium sublimation pumps are employed; the straight sections use stainless steel chambers with lumped ion pumps. In the wiggler area, an extended copper …
Date:
January 2, 2006
Creator:
Zisman, Michael S.
Object Type:
Report
System:
The UNT Digital Library
Solid Solution Lithium Alloy Cermet Anodes
None
Date:
January 2, 2006
Creator:
Richardson, Thomas J. & Chen, Guoying
Object Type:
Article
System:
The UNT Digital Library
Single particle wavefunction localizations in bulged CdSenanowires
Using atomistic empirical pseudopotentials, we havecalculated the electronic structures of CdSe nanowires with a bulgedarea. The localized state wavefunctions and their binding energies arecalculated, and their dependences on the bulged area shape are analyzed.We find that both the binding energy and the wavefunction localizationstrongly depend on the bulged area shape, with the most compact shapeproduces the largest binding energy and strongest wavefunctionlocalization. We also find that the top of the valence band state has aweaker localization than the bottom of the conduction band state due toan effective mass anisotropy.
Date:
July 2, 2006
Creator:
Zhao, Zhengji; Wang, Lin-Wang & Wu, Fengmin
Object Type:
Article
System:
The UNT Digital Library
Phenomenology of the left-right twin Higgs model
The twin Higgs mechanism was proposed recently to solve the little hierarchy problem. We study the implementation of the twin Higgs mechanism in left-right models. At the TeV scale, heavy quark and gauge bosonsappear, with rich collider phenomenology. In addition, there are extra Higgs bosons, some of which couple to both the standard model fermion sector and the gauge sector, while others couple to the gauge bosons only. We present the particle spectrum and study the general features of the collider phenomenology of this class of model at the Large Hadron Collider.
Date:
November 2, 2006
Creator:
Goh, Hock-Seng; Goh, Hock-Seng & Su, Shufang
Object Type:
Article
System:
The UNT Digital Library
Olivine-FeS Partial-Melt
The figure shows Fe-S-filled melt channels in olivine created at high temperature and pressure. The 3D image was obtained on Beamline 8.3.2 at the Advanced Light Source, Lawrence Berkeley Laboratory, with a spatial resolution of better than two microns (bar is 10 microns). Permeability of Fe-S melts in olivine at high temperatures and pressures provides an important constraint on models of planetary core formation. Permeability must be inferred from empirical relationships based on microstructure. To date, estimates of permeability have varied by more than five orders of magnitude. To provide more accurate constraints, we used high-resolution synchrotron radiation computed tomography to image the three-dimensional network of melt-containing pores in an olivine matrix, and calculated the permeability directly by solving the equations of Stokes flow through the actual pore network using a lattice-Boltzmann approach. These calculations provide an independent constraint on models of planetary core formation.
Date:
October 2, 2006
Creator:
Roberts, J.; Siebert, J.; Ryerson, F. J. & Kinney, J.
Object Type:
Article
System:
The UNT Digital Library
RHIC Performance with polarized protons in run-6
In this study, an array of vibration measurements at the undisturbed NSLS II site has been performed in order to establish the 'green-field' vibration environment and its spectral characteristics. The interaction of the green-field vibration environment with the NSLS II accelerator structure and the quantification of the storage ring vibration, both in terms of amplitude and spectral content have been assessed through a state-of-the-art wave propagation and scattering analysis. This paper focuses on the wave propagation and scattering aspect as well as on the filtering effects of accelerator structural parameters.
Date:
October 2, 2006
Creator:
Ptitsyn, V.; Ahrens, L.; Bai, M.; Beebe-Wang, J.; Blaskiewicz, M.; Bravar, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 37, No. 44, Ed. 1 Thursday, March 2, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
March 2, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History