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Suspension and Debarment: DOD Has Active Referral Processes, but Action Needed to Promote Transparency

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The four Department of Defense (DOD) components GAO examined have active processes for referring identified cases of contractor misconduct for appropriate action, including suspension or debarment. The components identify numerous cases of actual or alleged contractor misconduct each year from various internal and external sources. The figure below shows the process for identifying and referring cases t… more
Date: September 19, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Human Capital: Complete Information and More Analyses Needed to Enhance DOD's Civilian Senior Leader Strategic Workforce Plan

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "DOD's approach for determining its civilian senior leader workforce projections to meet future requirements incorporated the results of two separate assessments. In its 2010-2018 strategic workforce plan, DOD presented data that projected reductions of 178 civilian senior leader positions within its five career civilian senior leader workforces during fiscal years 2011 and 2012. To conduct its assessment… more
Date: September 19, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Next Generation Enterprise Network: Navy Implementing Revised Approach, but Improvement Needed in Mitigating Risks

Description: A letter report issued by the Government Accountability Office with an abstract that begins "While the Department of the Navy (DON) has revised its acquisition approach for its new network system, the Next Generation Enterprise Network (NGEN), it still has not shown that it has selected the most cost-effective approach for acquiring NGEN capabilities. Cost effectiveness is shown by comparing life-cycle costs and quantifiable and nonquantifiable benefits among alternatives, which can be accompli… more
Date: September 19, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Human Capital Management: Effectively Implementing Reforms and Closing Critical Skills Gaps Are Key to Addressing Federal Workforce Challenges

Description: Testimony issued by the Government Accountability Office with an abstract that begins "Since 2001, Congress, the Office of Personnel Management (OPM), and executive branch agencies have taken action to address the government's human capital challenges. For example, in 2002, Congress passed legislation creating the CHCO Council, composed of the Chief Human Capital Officers (CHCO) of 24 executive agencies and chaired by the Director of OPM. In 2004, through the Federal Workforce Flexibility Act, … more
Date: September 19, 2012
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Energy Saving Melting and Revert Reduction Technology: Aging of Graphitic Cast Irons and Machinability

Description: The objective of this task was to determine whether ductile iron and compacted graphite iron exhibit age strengthening to a statistically significant extent. Further, this effort identified the mechanism by which gray iron age strengthens and the mechanism by which age-strengthening improves the machinability of gray cast iron. These results were then used to determine whether age strengthening improves the machinability of ductile iron and compacted graphite iron alloys in order to develop a p… more
Date: September 19, 2012
Creator: Richards, Von L.
Partner: UNT Libraries Government Documents Department
open access

High-Power Microwave Switch Employing Electron Beam Triggering

Description: A high-power active microwave pulse compressor is described that modulates the quality factor Q of the energy storage cavity by a new means involving mode conversion controlled by a triggered electron-beam discharge through a switch cavity. The electron beam is emitted from a diamond-coated molybdenum cathode. This report describes the principle of operation, the design of the switch, the configuration used for the test, and the experimental results. The pulse compressor produced output pulses … more
Date: September 19, 2012
Creator: Hirshfield, Jay L.
Partner: UNT Libraries Government Documents Department
open access

Modeling Ion-Exchange Processing With Spherical Resins For Cesium Removal

Description: The spherical Resorcinol-Formaldehyde and hypothetical spherical SuperLig(r) 644 ion-exchange resins are evaluated for cesium removal from radioactive waste solutions. Modeling results show that spherical SuperLig(r) 644 reduces column cycling by 50% for high-potassium solutions. Spherical Resorcinol Formaldehyde performs equally well for the lowest-potassium wastes. Less cycling reduces nitric acid usage during resin elution and sodium addition during resin regeneration, therefore, significant… more
Date: September 19, 2012
Creator: Hang, T.; Nash, C. A. & Aleman, S. E.
Partner: UNT Libraries Government Documents Department
open access

Spurious Shear in Weak Lensing with LSST

Description: The complete 10-year survey from the Large Synoptic Survey Telescope (LSST) will image {approx} 20,000 square degrees of sky in six filter bands every few nights, bringing the final survey depth to r {approx} 27.5, with over 4 billion well measured galaxies. To take full advantage of this unprecedented statistical power, the systematic errors associated with weak lensing measurements need to be controlled to a level similar to the statistical errors. This work is the first attempt to quantitati… more
Date: September 19, 2012
Creator: Chang, C.; Kahn, S.M.; Jernigan, J.G.; Peterson, J.R.; AlSayyad, Y.; Ahmad, Z. et al.
Partner: UNT Libraries Government Documents Department
open access

ARM Standards Policy Committee Report

Description: Data and metadata standards promote the consistent recording of information and are necessary to ensure the stability and high quality of Atmospheric Radiation Measurement (ARM) Climate Research Facility data products for scientific users. Standards also enable automated routines to be developed to examine data, which leads to more efficient operations and assessment of data quality. Although ARM Infrastructure agrees on the utility of data and metadata standards, there is significant confusion… more
Date: September 19, 2012
Creator: Cialella, A; Jensen, M; Koontz, A; McFarlane, S; McCoy, R; Monroe, J et al.
Partner: UNT Libraries Government Documents Department
open access

Atmospheric PSF Interpolation for Weak Lensing in Short Exposure Imaging Data

Description: A main science goal for the Large Synoptic Survey Telescope (LSST) is to measure the cosmic shear signal from weak lensing to extreme accuracy. One difficulty, however, is that with the short exposure time ({approx_equal}15 seconds) proposed, the spatial variation of the Point Spread Function (PSF) shapes may be dominated by the atmosphere, in addition to optics errors. While optics errors mainly cause the PSF to vary on angular scales similar or larger than a single CCD sensor, the atmosphere … more
Date: September 19, 2012
Creator: Chang, C.; Marshall, P.J.; Jernigan, J.G.; Peterson, J.R.; Kahn, S.M.; Gull, S.F. et al.
Partner: UNT Libraries Government Documents Department
open access

Accelerated Corrosion of Stainless Steel in Thiocyanate-Containing Solutions

Description: It is known that reduced sulfur compounds (such as thiocyanate and thiosulfate) can accelerate active corrosion of austenitic stainless steel in acid solutions, but before we started this project the mechanism of acceleration was largely unclear. This work combined electrochemical measurements and analysis using scanning electron microscopy (SEM) and X-ray photo-electron spectroscopy (XPS), which provided a comprehensive understanding of the catalytic effect of reduced sulfur species on the act… more
Date: September 19, 2012
Creator: Pistorius, P. Chris & Li, Wen
Partner: UNT Libraries Government Documents Department
open access

High Sodium Simulant Testing To Support SB8 Sludge Preparation

Description: Scoping studies were completed for high sodium simulant SRAT/SME cycles to determine any impact to CPC processing. Two SRAT/SME cycles were performed with simulant having sodium supernate concentration of 1.9M at 130% and 100% of the Koopman Minimum Acid requirement. Both of these failed to meet DWPF processing objectives related to nitrite destruction and hydrogen generation. Another set of SRAT/SME cycles were performed with simulant having a sodium supernate concentration of 1.6M at 130%, 12… more
Date: September 19, 2012
Creator: Newell, J. D.
Partner: UNT Libraries Government Documents Department
open access

Overview of Innovative PMI Research on NSTX-U and Associated PMI Facilities at PPPL

Description: Developing a reactor compatible divertor and managing the associated plasma material interaction (PMI) has been identified as a high priority research area for magnetic confinement fusion. Accordingly on NSTXU, the PMI research has received a strong emphasis. With ~ 15 MW of auxiliary heating power, NSTX-U will be able to test the PMI physics with the peak divertor plasma facing component (PFC) heat loads of up to 40-60 MW/m2 . To support the PMI research, a comprehensive set of PMI diagnostic … more
Date: September 19, 2012
Creator: Ono, M.; Jaworski, M.; Kaita, R.; Skinner, C. N.; Allain, J. P.; Maingi, R. et al.
Partner: UNT Libraries Government Documents Department
open access

Search for Large Extra Dimensions Based on Observations of Neutron Stars with the Fermi-LAT

Description: Large extra dimensions (LED) have been proposed to account for the apparent weakness of gravitation. These theories also indicate that the postulated massive Kaluza-Klein (KK) gravitons may be produced by nucleon-nucleon bremsstrahlung in the course of core collapse of supernovae. Hannestad and Raffelt have predicted energy spectra of gamma ray emission from the decay of KK gravitons trapped by the gravity of the remnant neutron stars (NS). These and other authors have used EGRET data on NS to … more
Date: September 19, 2012
Creator: Berenji, Bijan & /Stanford U., Appl. Phys. Dept. /SLAC
Partner: UNT Libraries Government Documents Department
open access

Final Report on the Development of an Improved Cloud Microphysical Product for Model and Remote Sensing Evaluation using RACORO Observations

Description: We proposed to analyze data collected during the Routine Aerial Facilities (AAF) Clouds with Low Optical Water Depths (CLOWD) Optical Radiative Observations (RACORO) in order to develop an integrated product of cloud microphysical properties (number concentration of drops in different size bins, total liquid drop concentration integrated over all bin sizes, liquid water content LWC, extinction of liquid clouds bw, effective radius of water drops re, and radar reflectivity factor) that could be … more
Date: September 19, 2012
Creator: McFarquhar, Greg
Partner: UNT Libraries Government Documents Department
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