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United Nations: Weaknesses in Internal Oversight and Procurement Could Affect the Effective Implementation of the Planned Renovation

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The UN headquarters buildings are in need of renovation. The Capital Master Plan is an opportunity for the organization to renovate its headquarters buildings and ensure conformity with current safety, fire, and security requirements. Estimated by the UN to cost about $1.6 billion, the renovation will require a substantial management effort by the UN--including the use of effective internal oversight and proc… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Tactical Aircraft: DOD Should Present a New F-22A Business Case before Making Further Investments

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "The F-22A is the Air Force's next generation air superiority fighter aircraft. It incorporates a low observable (stealth) and highly maneuverable airframe, advanced integrated avionics, and a new engine capable of sustained supersonic flight without the use of afterburners. It was originally designed to counter threats posed by the Soviet Union and was intended to replace the F-15 fighter in the air-to-a… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
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Improvement Continues in DOD's Reporting on Sustainable Ranges but Additional Time Is Needed to Fully Implement Key Initiatives

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "Title III, section 366 of the Bob Stump National Defense Authorization Act for Fiscal Year 2003, required the Secretary of Defense to develop a comprehensive plan for the sustainment of training ranges using existing authorities available to the Secretaries of Defense and the military departments to address training constraints caused by limitations on the use of military lands, marine areas, and airspac… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Department of Homeland Security's Use of Special Streamlined Acquisition Authorities in Section 833 of the Homeland Security Act of 2002

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "In creating the Department of Homeland Security (DHS) in the wake of September 11, 2001, some in Congress were concerned that the Department might not be able to conduct acquisitions with sufficient speed, particularly in an emergency. To that end, Congress enacted section 833 of the Homeland Security Act of 2002, which provides DHS with special streamlined acquisition authorities. Before those authoriti… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Federal Courthouses: Rent Increases Due to New Space and Growing Energy and Security Costs Require Better Tracking and Management

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The judiciary pays over $900 million in rent annually to GSA for court-related space, and this amount represents a growing proportion of the judiciary's budget. The judiciary's rent payments are deposited into GSA's Federal Buildings Fund (FBF), a revolving fund used to finance GSA's real property services, including the construction and repair of federal facilities under GSA control. In December 2004, … more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Summary of a GAO Conference: Helping California Youths with Disabilities Transition to Work or Postsecondary Education

Description: Other written product issued by the Government Accountability Office with an abstract that begins "The federal government plays a significant role in supporting youths with disabilities, many of whom research has shown are less likely than other students to successfully transition from high school to postsecondary education or employment. Federal programs make considerable investments in providing transition services for youths with disabilities, often through state and local agencies. GAO has … more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Information Security: Leadership Needed to Address Weaknesses and Privacy Issues at Veterans Affairs

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The recent information security breach at the Department of Veterans Affairs (VA), in which personal data on millions of veterans were compromised, has highlighted the importance of the department's security weaknesses, as well as the ability of federal agencies to protect personal information. Robust federal security programs are critically important to properly protect this information and the privacy of in… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Sculpting the shape of semiconductor heteroepitaxial islands: fromdots to rods

Description: In the Ge on Si model heteroepitaxial system, metal patterns on the silicon surface provide unprecedented control over the morphology of highly ordered Ge islands. Island shape including nanorods and truncated pyramids is set by the metal species and substrate orientation. Analysis of island faceting elucidates the prominent role of the metal in promoting growth of preferred facet orientations while investigations of island composition and structure reveal the importance of Si-Ge intermixing in… more
Date: June 20, 2006
Creator: Robinson, J. T.; Walko, D. A.; Arms, D. A.; Tinberg, D. S.; Evans, P. G.; Cao, Y. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Structural Properties of Eu-Doped GaN Investigated by Raman Spectroscopy

Description: Rare-earth (RE) impurities doped GaN are highly promising candidates for light emitting device applications due to their efficient electroluminescence properties at room temperature. Among those, Eu doped GaN has been identified as an excellent material for the red spectral region due to its strong emission at 620 nm. As a transition internal to the Eu doping atom (4f-4f), light emission originates in a much smaller complex than the more flexibly controllable quantum structures of wells, wires,… more
Date: June 20, 2006
Creator: Senawiratne, J; Xia, Y; Detchprohm, T; Tringe, J W; Stevens, C G & Wetzel, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Computational Thermochemistry and Benchmarking of Reliable Methods

Description: During the first and second years of the Computational Thermochemistry and Benchmarking of Reliable Methods project, we completed several studies using the parallel computing capabilities of the NWChem software and Molecular Science Computing Facility (MSCF), including large-scale density functional theory (DFT), second-order Moeller-Plesset (MP2) perturbation theory, and CCSD(T) calculations. During the third year, we continued to pursue the computational thermodynamic and benchmarking studies… more
Date: June 20, 2006
Creator: Feller, David F.; Dixon, David A.; Dunning, Thom H.; Dupuis, Michel; McClemore, Doug; Peterson, Kirk A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CH-TRU Waste Content Codes (CH-TRUCON)

Description: The CH-TRU Waste Content Codes (CH-TRUCON) document describes the inventory of the U.S. Department of Energy (DOE) CH-TRU waste within the transportation parameters specified by the Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH-TRAMPAC). The CH-TRAMPAC defines the allowable payload for the Transuranic Package Transporter-II (TRUPACT-II) and HalfPACT packagings. This document is a catalog of TRUPACT-II and HalfPACT authorized contents and a description of the metho… more
Date: June 20, 2006
Creator: Westinghouse TRU Solutions LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

THREE-DIMENSIONAL IGNITION AND GROWTH REACTIVE FLOW MODELING OF PRISM FAILURE TESTS ON PBX 9502

Description: The Ignition and Growth reactive flow model for shock initiation and detonation of solid explosives based on triaminotirnitrobenzene (TATB) is applied to three-dimensional detonation wave propagation. The most comprehensive set of three-dimensional detonation wave propagation data is that measured using the trapezoidal prism test. In this test, a PBX 9501 (95% HMX, 2.5% Estane, and 2.5% BDNPA/F) line detonator initiates a detonation wave along the trapezoidal face of a PBX 9502 (95% TATB and 5%… more
Date: June 20, 2006
Creator: Garcia, M L & Tarver, C M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Participation through Automation: Fully Automated Critical Peak Pricing in Commercial Buildings

Description: California electric utilities have been exploring the use of dynamic critical peak prices (CPP) and other demand response programs to help reduce peaks in customer electric loads. CPP is a tariff design to promote demand response. Levels of automation in DR can be defined as follows: Manual Demand Response involves a potentially labor-intensive approach such as manually turning off or changing comfort set points at each equipment switch or controller. Semi-Automated Demand Response involves a p… more
Date: June 20, 2006
Creator: Piette, Mary Ann; Watson, David S.; Motegi, Naoya; Kiliccote,Sila & Linkugel, Eric
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dislocation Multi-junctions and Strain Hardening

Description: At the microscopic scale, the strength of a crystal derives from the motion, multiplication and interaction of distinctive line defects--dislocations. First theorized in 1934 to explain low magnitudes of crystal strength observed experimentally, the existence of dislocations was confirmed only two decades later. Much of the research in dislocation physics has since focused on dislocation interactions and their role in strain hardening: a common phenomenon in which continued deformation increase… more
Date: June 20, 2006
Creator: Bulatov, V.; Hsiung, L.; Tang, M.; Arsenlis, A.; Bartelt, M.; Cai, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Scale Dependence of Effective Matrix Diffusion Coefficient Evidence and Preliminary Interpertation

Description: The exchange of solute mass (through molecular diffusion) between fluid in fractures and fluid in the rock matrix is called matrix diffusion. Owing to the orders-of-magnitude slower flow velocity in the matrix compared to fractures, matrix diffusion can significantly retard solute transport in fractured rock, and therefore is an important process for a variety of problems, including remediation of subsurface contamination and geological disposal of nuclear waste. The effective matrix diffusion … more
Date: June 20, 2006
Creator: Liu, H.H. & Zhang, Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Infiltration and Seepage Through Fractured Welded Tuff

Description: The Nopal I mine in Pena Blanca, Chihuahua, Mexico, contains a uranium ore deposit within fractured tuff. Previous mining activities exposed a level ground surface 8 m above an excavated mining adit. In this paper, we report results of ongoing research to understand and model percolation through the fractured tuff and seepage into a mined adit both of which are important processes for the performance of the proposed nuclear waste repository at Yucca Mountain. Travel of water plumes was modeled … more
Date: June 20, 2006
Creator: Ghezzehei, T. A.; Dobson, P. F.; Rodriguez, J. A. & Cook, P. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effects of Unheated Sections on Mositure Transport in the Emplacement Drift

Description: A thermal-hydrologic natural-ventilation model is configured for simulating temperature, humidity, and condensate distributions in the coupled domains of the in-drift airspace and the near-field rockmass. Meaningful results are obtained from the model for a practical application in which the beneficial effects of unheated drift sections are analyzed. Sensitivity to the axial dispersion coefficient is also studied with the model.
Date: June 20, 2006
Creator: Danko, G.; Bahrami, D. & Birkholzer, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Historic Models of Cn2 to predict r0 and regimes affected by atmospheric turbulence for horizontal, slant and topological paths

Description: Image data collected near the ground, in the boundary layer, or from low altitude planes must contend with the detrimental effects of atmospheric turbulence on the image quality. So it is useful to predict operating regimes (wavelength, height of target, height of detector, total path distance, day vs. night viewing, etc.) where atmospheric turbulence is expected to play a significant role in image degradation. In these regimes, image enhancement techniques such as speckle processing, deconvolu… more
Date: June 20, 2006
Creator: Lawson, J K & Carrano, C J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Kinetic Modeling of Slow Energy Release in Non-Ideal Carbon Rich Explosives

Description: We present here the first self-consistent kinetic based model for long time-scale energy release in detonation waves in the non-ideal explosive LX-17. Non-ideal, insensitive carbon rich explosives, such as those based on TATB, are believed to have significant late-time slow release in energy. One proposed source of this energy is diffusion-limited growth of carbon clusters. In this paper we consider the late-time energy release problem in detonation waves using the thermochemical code CHEETAH l… more
Date: June 20, 2006
Creator: Vitello, P; Fried, L; Glaesemann, K & Souers, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

THRESHOLD STUDIES ON TNT, COMPOSITION B, C-4, AND ANFO EXPLOSIVES USING THE STEVEN IMPACT TEST

Description: Steven Impact Tests were performed at low velocity on the explosives TNT (trinitrotolulene), Composition B (63% RDX, 36% TNT, and 1% wax by weight), C-4 (91% RDX, 5.3% Di (2-ethylhexyl) sebacate, 2.1% Polyisobutylene, and 1.6% motor oil by weight) and ANFO (94% ammonium Nitrate with 6% Fuel Oil) in attempts to obtain a threshold for reaction. A 76 mm helium driven gas gun was used to accelerate the Steven Test projectiles up to approximately 200 m/s in attempts to react (ignite) the explosive s… more
Date: June 20, 2006
Creator: Vandersall, K S; Switzer, L L & Garcia, F
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Strategies for Demand Response in Commercial Buildings

Description: This paper describes strategies that can be used in commercial buildings to temporarily reduce electric load in response to electric grid emergencies in which supplies are limited or in response to high prices that would be incurred if these strategies were not employed. The demand response strategies discussed herein are based on the results of three years of automated demand response field tests in which 28 commercial facilities with an occupied area totaling over 11 million ft{sup 2} were te… more
Date: June 20, 2006
Creator: Watson, David S.; Kiliccote, Sila; Motegi, Naoya & Piette, Mary Ann
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Chemistry of Water Collected From an Unventillated Drift, Yucca Mountain, Nevada

Description: The chemical composition of water that may be present in the emplacement drifts is a key issue for the isolation of high-level radioactive waste in a proposed mined geologic repository at Yucca Mountain, Nevada. Chemical constituents in water that may contact waste containers may affect rates of corrosion of the container materials. Long-term simulations of the in-drift chemical environment rely on ambient water chemistry, heat perturbations, and the interaction of ambient water with the engine… more
Date: June 20, 2006
Creator: Marshall, B. D.; Oliver, T. A. & Peterman, Z. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Federal Housing Administration: Proposed Reforms Will Heighten the Need for Continued Improvements in Managing Risks and Estimating Program Costs

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Housing and Urban Development's (HUD) Federal Housing Administration (FHA) has faced several challenges in recent years, including rising default rates, higher-than-expected program costs, and a sharp decline in program participation. To help FHA adapt to market changes, HUD has proposed a number of changes to the National Housing Act that would raise FHA's mortgage limits, allow greater fle… more
Date: June 20, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
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