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Fiscal Year 2007 Performance Plans (open access)

Fiscal Year 2007 Performance Plans

Other written product issued by the Government Accountability Office with an abstract that begins "This report presents the General Accounting Office's (GAO) Performance Plans for Fiscal Year 2007. In the spirit of the Government Performance and Results Act, this annual plan informs the Congress and the American people about what we expect to accomplish on their behalf in the coming fiscal year. It sets forth our plan to make progress toward achieving our strategic goals for serving the Congress and the American people. This framework not only shows the relationship between our strategic goals and strategic objectives, but also show major themes that could potentially affect our work."
Date: October 1, 2006
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Modeling the Integrated Performance of Dispersion and Monolithic U-Mo Based Fuels (open access)

Modeling the Integrated Performance of Dispersion and Monolithic U-Mo Based Fuels

The evaluation and prediction of integrated fuel performance is a critical component of the Reduced Enrichment for Research and Test Reactors (RERTR) program. The PLATE code is the primary tool being developed and used to perform these functions. The code is being modified to incorporate the most recent fuel/matrix interaction correlations as they become available for both aluminum and aluminum/silicon matrices. The code is also being adapted to treat cylindrical and square pin geometries to enhance the validation database by including the results gathered from various international partners. Additional modeling work has been initiated to evaluate the thermal and mechanical performance requirements unique to monolithic fuels during irradiation.
Date: October 1, 2006
Creator: Wachs, Daniel M.; Burkes, Douglas E.; Hayes, Steven L.; Moore, Karen; Miller, Greg; Hofman, Gerard et al.
Object Type: Article
System: The UNT Digital Library
In Vivo Characterization of Human APOA5 Haplotypes (open access)

In Vivo Characterization of Human APOA5 Haplotypes

Increased plasma triglycerides concentrations are an independent risk factor for cardiovascular disease. Numerous studies support a reproducible genetic association between two minor haplotypes in the human apolipoprotein A5 gene (APOA5) and increased plasma triglyceride concentrations. We thus sought to investigate the effect of these minor haplotypes (APOA5*2 and APOA5*3) on ApoAV plasma levels through the precise insertion of single-copy intact APOA5 haplotypes at a targeted location in the mouse genome. While we found no difference in the amount of human plasma ApoAV in mice containing the common APOA5*1 and minor APOA5*2 haplotype, the introduction of the single APOA5*3 defining allele (19W) resulted in 3-fold lower ApoAV plasma levels consistent with existing genetic association studies. These results indicate that S19W polymorphism is likely to be functional and explain the strong association of this variant with plasma triglycerides supporting the value of sensitive in vivo assays to define the functional nature of human haplotypes.
Date: October 1, 2006
Creator: Ahituv, Nadav; Akiyama, Jennifer; Chapman-Helleboid, Audrey; Fruchart, Jamila & Pennacchio, Len A.
Object Type: Article
System: The UNT Digital Library
Experimental Breeder Reactor I Preservation Plan (open access)

Experimental Breeder Reactor I Preservation Plan

Experimental Breeder Reactor I (EBR I) is a National Historic Landmark located at the Idaho National Laboratory, a Department of Energy laboratory in southeastern Idaho. The facility is significant for its association and contributions to the development of nuclear reactor testing and development. This Plan includes a structural assessment of the interior and exterior of the EBR I Reactor Building from a preservation, rather than an engineering stand point and recommendations for maintenance to ensure its continued protection.
Date: October 1, 2006
Creator: Braun, Julie
Object Type: Report
System: The UNT Digital Library
GeV electron beams from a laser-plasma accelerator (open access)

GeV electron beams from a laser-plasma accelerator

High-quality electron beams with up to 1 GeV energy havebeen generated by a laser-driven plasma-based accelerator by guiding a 40TW peak power laser pulse in a 3.3 cm long gas-filled capillary dischargewaveguide.
Date: October 1, 2006
Creator: Schroeder, C. B.; Tóth, Cs.; Nagler, B.; Gonsalves, A. J.; Nakamura, K.; Geddes, C. G. R. et al.
Object Type: Article
System: The UNT Digital Library
Cracking and Corrosion of Composite Tubes in Black Liquor Recovery Boiler Primary Air Ports (open access)

Cracking and Corrosion of Composite Tubes in Black Liquor Recovery Boiler Primary Air Ports

This report addresses the cracking and corrosion of composite tubes in black liquor recovery boiler primary air ports.
Date: October 1, 2006
Creator: Keiser, James R.; Singbeil, Douglas; Gorti, Sarma B.; Kish, Joseph R.; Yuan, Jianwei; Frederick, Laurel A. et al.
Object Type: Report
System: The UNT Digital Library
Quantum Mechanical Single Molecule Partition Function from Path Integral Monte Carlo Simulations (open access)

Quantum Mechanical Single Molecule Partition Function from Path Integral Monte Carlo Simulations

An algorithm for calculating the partition function of a molecule with the path integral Monte Carlo method is presented. Staged thermodynamic perturbation with respect to a reference harmonic potential is utilized to evaluate the ratio of partition functions. Parallel tempering and a new Monte Carlo estimator for the ratio of partition functions are implemented here to achieve well converged simulations that give an accuracy of 0.04 kcal/mol in the reported free energies. The method is applied to various test systems, including a catalytic system composed of 18 atoms. Absolute free energies calculated by this method lead to corrections as large as 2.6 kcal/mol at 300 K for some of the examples presented.
Date: October 1, 2006
Creator: Chempath, Shaji; Bell, Alexis T. & Predescu, Cristian
Object Type: Article
System: The UNT Digital Library
Shillapoo Wildlife Area, Annual Report 2006-2007. (open access)

Shillapoo Wildlife Area, Annual Report 2006-2007.

This report summarizes accomplishments, challenges and successes on WDFW's Shillapoo Wildlife Area funded under Bonneville Power Administration's (BPA) Wildlife Mitigation Program (BPA project No.2003-012-00) during the Fiscal Year 07 contract period October 1, 2006-September 30, 2007. The information presented here is intended to supplement that contained in BPA's PISCES contract development and reporting system. The organization below is by broad categories of work but references are made to individual work elements in the PISCES Statement of Work as appropriate. The greatest success realized during this contract period was significant positive changes in the vegetative community in several wetland basins throughout the wildlife area. This major goal is being achieved in part by new equipment and operation capability funded under the BPA contract, state capital and migratory bird stamp funds, and the past or ongoing investment of other partners including Ducks Unlimited, The Natural Resources Conservation Service (NRCS), Clark Public Utilities and others. We continue to be challenged by requirements under the archaeological and historic preservation act necessary to protect many sensitive sites known to occur within the wildlife area. The problems encountered to date have been largely administrative in nature and those experienced this year were unforeseen and probably unavoidable. …
Date: October 1, 2006
Creator: Calkins, Brian
Object Type: Report
System: The UNT Digital Library
Save Energy Now (open access)

Save Energy Now

This DOE Industrial Technologies Program brochure informs industry about Phase 2 of Save Energy Now, part of "Easy Ways to Save Energy," a national campaign to save energy and ensure energy security.
Date: October 1, 2006
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Precision cosmology and the landscape (open access)

Precision cosmology and the landscape

After reviewing the cosmological constant problem -- why is Lambda not huge? -- I outline the two basic approaches that had emerged by the late 1980s, and note that each made a clear prediction. Precision cosmological experiments now indicate that the cosmological constant is nonzero. This result strongly favors the environmental approach, in which vacuum energy can vary discretely among widely separated regions in the universe. The need to explain this variation from first principles constitutes an observational constraint on fundamental theory. I review arguments that string theory satisfies this constraint, as it contains a dense discretuum of metastable vacua. The enormous landscape of vacua calls for novel, statistical methods of deriving predictions, and it prompts us to reexamine our description of spacetime on the largest scales. I discuss the effects of cosmological dynamics, and I speculate that weighting vacua by their entropy production may allow for prior-free predictions that do not resort to explicitly anthropic arguments.
Date: October 1, 2006
Creator: Bousso, Raphael & Bousso, Raphael
Object Type: Article
System: The UNT Digital Library
Renewable Energy Development on Tribal Lands (open access)

Renewable Energy Development on Tribal Lands

Brochure describes the Tribal Energy Program, which provides American Indian tribes with financial and technical assistance for developing renewable energy projects on tribal land.
Date: October 1, 2006
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Effects of Biodiesel Blends on Vehicle Emissions: Fiscal Year 2006 Annual Operating Plan Milestone 10.4 (open access)

Effects of Biodiesel Blends on Vehicle Emissions: Fiscal Year 2006 Annual Operating Plan Milestone 10.4

The objective was to determine if testing entire vehicles, vs. just the engines, on a heavy-duty chassis dynamometer provides a better, measurement of the impact of B20 on emissions.
Date: October 1, 2006
Creator: McCormick, R. L.; Williams, A.; Ireland, J. & Hayes, R. R.
Object Type: Report
System: The UNT Digital Library
Development Of An Acoustice Sensor For On-Line Gas Temperature Measurement In Gasifiers (open access)

Development Of An Acoustice Sensor For On-Line Gas Temperature Measurement In Gasifiers

This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-02NT41422 and specifically addresses Technical Topical Area 2 - Gasification Technologies. The project team includes Enertechnix, Inc. as the main contractor and ConocoPhillips Company as a technical partner, who also provides access to the SG Solutions Gasification Facility (formerly Wabash River Energy Limited), host for the field-testing portion of the research. The objective of this project was to adapt acoustic pyrometer technology to make it suitable for measuring gas temperature inside a coal gasifier, to develop a prototype sensor based on this technology, and to demonstrate its performance through testing on a commercial gasifier. The project was organized in three phases, each of approximately one year duration. The first phase consisted of researching a variety of sound generation and coupling approaches suitable for use with a high pressure process, evaluation of the impact of gas composition variability on the acoustic temperature measurement approach, evaluation of the impact of suspended particles and gas properties on sound attenuation, evaluation of slagging issues and development of concepts to deal with this issue, development and testing of key prototype components to allow selection of the best approaches, …
Date: October 1, 2006
Creator: Ariessohn, Peter & Hornung, Hans
Object Type: Report
System: The UNT Digital Library
Supernova Recognition using Support Vector Machines (open access)

Supernova Recognition using Support Vector Machines

We introduce a novel application of Support Vector Machines(SVMs) to the problem of identifying potential supernovae usingphotometric and geometric features computed from astronomical imagery.The challenges of this supervised learning application are significant:1) noisy and corrupt imagery resulting in high levels of featureuncertainty,2) features with heavy-tailed, peaked distributions,3)extremely imbalanced and overlapping positiveand negative data sets, and4) the need to reach high positive classification rates, i.e. to find allpotential supernovae, while reducing the burdensome workload of manuallyexamining false positives. High accuracy is achieved viaasign-preserving, shifted log transform applied to features with peaked,heavy-tailed distributions. The imbalanced data problem is handled byoversampling positive examples,selectively sampling misclassifiednegative examples,and iteratively training multiple SVMs for improvedsupernovarecognition on unseen test data. We present crossvalidationresults and demonstrate the impact on a largescale supernova survey thatcurrently uses the SVM decision value to rank-order 600,000 potentialsupernovae each night.
Date: October 1, 2006
Creator: Romano, Raquel A.; Aragon, Cecilia R. & Ding, Chris
Object Type: Article
System: The UNT Digital Library
Prototype Weigh-In-Motion Performance (open access)

Prototype Weigh-In-Motion Performance

Oak Ridge National Laboratory (ORNL) has developed and patented methods to weigh slowly moving vehicles. We have used this technology to produce a portable weigh-in-motion system that is robust and accurate. This report documents the performance of the second-generation portable weigh-in-motion prototype (WIM Gen II). The results of three modes of weight determination are compared in this report: WIM Gen II dynamic mode, WIM Gen II stop-and-go mode, and static (parked) mode on in-ground, static scales. The WIM dynamic mode measures axle weights as the vehicle passes over the system at speeds of 3 to 7 miles per hour (1.3 to 3.1 meters/second). The WIM stop-and-go mode measures the weight of each axle of the vehicle as the axles are successively positioned on a side-by-side pair of WIM measurement pads. In both measurement modes the center of balance (CB) and the total weight are obtained by a straight-forward calculation from axle weights and axle spacings. The performance metric is measurement error (in percent), which is defined as 100 x (sample standard deviation)/(average); see Appendix A for details. We have insufficient data to show that this metric is predictive. This report details the results of weight measurements performed in May 2005 …
Date: October 1, 2006
Creator: Abercrombie, Robert K; Beshears, David L; Hively, Lee M; Scudiere, Matthew B & Sheldon, Frederick T
Object Type: Report
System: The UNT Digital Library
Accelerating DSMC data extraction. (open access)

Accelerating DSMC data extraction.

In many direct simulation Monte Carlo (DSMC) simulations, the majority of computation time is consumed after the flowfield reaches a steady state. This situation occurs when the desired output quantities are small compared to the background fluctuations. For example, gas flows in many microelectromechanical systems (MEMS) have mean speeds more than two orders of magnitude smaller than the thermal speeds of the molecules themselves. The current solution to this problem is to collect sufficient samples to achieve the desired resolution. This can be an arduous process because the error is inversely proportional to the square root of the number of samples so we must, for example, quadruple the samples to cut the error in half. This work is intended to improve this situation by employing more advanced techniques, from fields other than solely statistics, for determining the output quantities. Our strategy centers on exploiting information neglected by current techniques, which collect moments in each cell without regard to one another, values in neighboring cells, nor their evolution in time. Unlike many previous acceleration techniques that modify the method itself, the techniques examined in this work strictly post-process so they may be applied to any DSMC code without affecting its fidelity …
Date: October 1, 2006
Creator: Gallis, Michail A. & Piekos, Edward Stanley
Object Type: Report
System: The UNT Digital Library
Study of collisons of supersymmetric top Quark in the channel stop anti-stop -> e+- mu-+ sneutrino anti-sneutrino b anti-b with the experience of D0 at the Tevatron. Callibration of the electromagnetic calorimeter at D0. (open access)

Study of collisons of supersymmetric top Quark in the channel stop anti-stop -> e+- mu-+ sneutrino anti-sneutrino b anti-b with the experience of D0 at the Tevatron. Callibration of the electromagnetic calorimeter at D0.

Supersymmetry is one of the most natural extensions of the Standard Model. At low energy it may consist in the Minimal Supersymmetric Standard Model which is the framework chosen to perform the search of the stop with 350 pb{sup -1} of data collected by D0 during the RunIIa period of the TeVatron. They selected the events with an electron, a muon, missing transverse energy and non-isolated tracks, signature for the stop decay in 3-body ({bar t} {yields} bl{bar {nu}}). Since no significant excess of signal is seen, the results are interpreted in terms of limit on the stop production cross-sections, in such a way that they extend the existing exclusion region in the parameter space (m{sub {bar t}},m{sub {bar {nu}}}) up to stop masses of 168 (140) GeV for sneutrino masses of 50 (94) GeV. Finally because of the crucial role of the electromagnetic calorimeter, a fine calibration was performed using Z {yields} e{sup +}e{sup -} events, which improved significantly the energy resolution.
Date: October 1, 2006
Creator: Mendes, Aurelien & /Marseille U., Luminy
Object Type: Thesis or Dissertation
System: The UNT Digital Library
LHC Olympics Workshop and String Phenomenology 2006 Conference (open access)

LHC Olympics Workshop and String Phenomenology 2006 Conference

This is the final report of the organizers of the String Phenomenolgy program of which the LHC Olympics and the String Phenomenolgy conference were a part. In addition, it includes the list of talks from our website which comprise the online proceedings. The KITP no longer publishes conferences proceedings but rather makes recordings and visuals of all talks available on its website at www.kitp.ucsb.edu Program talks are available at http://online.kitp.ucsb.edu/online/strings06/ Conference talks are are at http://online.itp.ucsb.edu/online/strings_c06/ and LHC Olympics talks are at http://online.itp.ucsb.edu/online/lhco_c06/. These talks constitute the proceedings of these meetings.
Date: October 1, 2006
Creator: Gross, David
Object Type: Article
System: The UNT Digital Library
Long term biosustainability in a high energy, low diversity crustal biome (open access)

Long term biosustainability in a high energy, low diversity crustal biome

Geochemical, microbiological, and molecular analyses of alkaline saline groundwater at 2.8 kilometers depth in Archaean metabasalt revealed a microbial biome dominated by a single phylotype affiliated with thermophilic sulfate reducers belonging to Firmicutes. These sulfate reducers were sustained by geologically produced sulfate and hydrogen at concentrations sufficient to maintain activities for millions of years with no apparent reliance on photosynthetically derived substrates.
Date: October 1, 2006
Creator: Lin, L-H.; Wang, P-L.; Rumble, D.; Lippmann-Pipke, J.; SherwoodLollar, B.; Boice, E. et al.
Object Type: Article
System: The UNT Digital Library
Fall Chinook Salmon Spawning Ground Surveys in the Snake River Basin Upriver of Lower Granite Dam, 2005 Annual Report. (open access)

Fall Chinook Salmon Spawning Ground Surveys in the Snake River Basin Upriver of Lower Granite Dam, 2005 Annual Report.

Redd counts are routinely used to document the spawning distribution of fall Chinook salmon (Oncorhynchus tshawytscha) in the Snake River basin upriver of Lower Granite Dam. The first reported redd counts were from aerial searches conducted intermittently between 1959 and 1978 (Irving and Bjornn 1981, Witty 1988; Groves and Chandler 1996)(Appendix 1). In 1986, the Washington Department of Fish and Wildlife began an annual monitoring program that, in addition to the Snake River, included aerial searches of the Grande Ronde River the first year (Seidel and Bugert 1987), and the Imnaha River in subsequent years (Seidel et al. 1988; Bugert et al. 1989-1991; Mendel et al. 1992). The U. S. Fish and Wildlife Service and Idaho Power Company began contributing to this effort in 1991 by increasing the number of aerial searches conducted each year and adding underwater searches in areas of the Snake River that were too deep to be searched from the air (Connor et al. 1993; Garcia et al. 1994a, 1994b, 1996-2005; Groves 1993; Groves and Chandler 1996). The Nez Perce Tribe added aerial searches in the Clearwater River basin beginning in 1988 (Arnsberg et. al 1992), and the Salmon River beginning in 1992. Currently searches are …
Date: October 1, 2006
Creator: Garcia, A. P.; Bradbury, S.; Arnsberg, B.D.; Rocklage, S.J. & Groves, P.A.
Object Type: Report
System: The UNT Digital Library
A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHCEnergies (open access)

A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHCEnergies

Standard jet finding techniques used in elementary particle collisions have not been successful in the high track density of heavy-ion collisions. This paper describes a modified cone-type jet finding algorithm developed for the complex environment of heavy-ion collisions.
Date: October 1, 2006
Creator: Blyth, S.-L.; Horner, M.J.; Awes, T.; Cormier, T.; Gray, H.; Klay, J.L. et al.
Object Type: Article
System: The UNT Digital Library
Design and Status of RERTR Irradiation Tests in the Advanced Test Reactor (open access)

Design and Status of RERTR Irradiation Tests in the Advanced Test Reactor

Irradiation testing of U-Mo based fuels is the central component of the Reduced Enrichment for Research and Test Reactors (RERTR) program fuel qualification plan. Several RERTR tests have recently been completed or are planned for irradiation in the Advanced Test Reactor (ATR) located at the Idaho National Laboratory in Idaho Falls, ID. Four mini-plate experiments in various stages of completion are described in detail, including the irradiation test design, objectives, and irradiation conditions. Observations made during and after the in-reactor RERTR-7A experiment breach are summarized. The irradiation experiment design and planned irradiation conditions for full-size plate test are described. Progress toward element testing will be reviewed.
Date: October 1, 2006
Creator: Wachs, Daniel M.; Ambrosek, Richard G.; Chang, Gray & Meyer, Mitchell K.
Object Type: Article
System: The UNT Digital Library
Spectral Decomposition of Signaling Networks (open access)

Spectral Decomposition of Signaling Networks

None
Date: October 1, 2006
Creator: Parvin, Bahram; Ghosh, Nimu; Heiser, Laura; Knapp, M.; Talcott,C.; Laderoute, K. et al.
Object Type: Article
System: The UNT Digital Library
Aspen Global Change Institute Summer Science Sessions (open access)

Aspen Global Change Institute Summer Science Sessions

The Aspen Global Change Institute (AGCI) successfully organized and convened six interdisciplinary meetings over the course of award NNG04GA21G. The topics of the meetings were consistent with a range of issues, goals and objectives as described within the NASA Earth Science Enterprise Strategic Plan and more broadly by the US Global Change Research Program/Our Changing Planet, the more recent Climate Change Program Strategic Plan and the NSF Pathways report. The meetings were chaired by two or more leaders from within the disciplinary focus of each session. 222 scholars for a total of 1097 participants-days were convened under the auspices of this award. The overall goal of each AGCI session is to further the understanding of Earth system science and global environmental change through interdisciplinary dialog. The format and structure of the meetings allows for presentation by each participant, in-depth discussion by the whole group, and smaller working group and synthesis activities. The size of the group is important in terms of the group dynamics and interaction, and the ability for each participant's work to be adequately presented and discussed within the duration of the meeting, while still allowing time for synthesis
Date: October 1, 2006
Creator: Katzenberger, John & Kaye, Jack A
Object Type: Report
System: The UNT Digital Library