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NOAA: Next Steps to Strengthen Its Acquisition Function

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The National Oceanic and Atmospheric Administration (NOAA) accounts for about half of the Department of Commerce's (Commerce) acquisition spending, over $851 million in fiscal year 2005 alone. In recent years however, NOAA has experienced instances of poor contract management. GAO was asked to determine if NOAA is positioned to effectively carry out its acquisition function. Specifically, GAO assessed t… more
Date: June 7, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Clean Water: Better Information and Targeted Prevention Efforts Could Enhance Spill Management in the St. Clair-Detroit River Corridor

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Spills of oil and hazardous substances in the St. Clair-Detroit River corridor have degraded this border area between the United States and Canada and are a potential threat to local drinking water supplies. Within the United States such spills are reported to the National Response Center (NRC), and in Canada to the Ontario Spills Action Centre. This report discusses (1) how many oil and hazardous subst… more
Date: June 7, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced geothermal systems (EGS) using CO2 as working fluid - Anovelapproach for generating renewable energy with simultaneoussequestration of carbon

Description: Responding to the need to reduce atmospheric emissions of carbon dioxide, Donald Brown (2000) proposed a novel enhanced geothermal systems (EGS) concept that would use CO{sub 2} instead of water as heat transmission fluid, and would achieve geologic sequestration of CO{sub 2} as an ancillary benefit. Following up on his suggestion, we have evaluated thermophysical properties and performed numerical simulations to explore the fluid dynamics and heat transfer issues in an engineered geothermal re… more
Date: June 7, 2006
Creator: Pruess, Karsten
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Noncommutative Inspired Black Holes in Extra Dimensions

Description: In a recent string theory motivated paper, Nicolini, Smailagic and Spallucci (NSS) presented an interesting model for a noncommutative inspired, Schwarzschild-like black hole solution in 4-dimensions. The essential effect of having noncommutative co-ordinates in this approach is to smear out matter distributions on a scale associated with the turn-on of noncommutativity which was taken to be near the 4-d Planck mass. In particular, NSS assumed that this smearing was essentially Gaussian. This e… more
Date: June 7, 2006
Creator: Rizzo, Thomas G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

How Can We Test Seesaw Experimentally?

Description: The seesaw mechanism for the small neutrino mass has been a popular paradigm, yet it has been believed that there is no way to test it experimentally. We present a conceivable outcome from future experiments that would convince us of the seesaw mechanism. It would involve a variety of data from LHC, ILC, cosmology, underground, and low-energy flavor violation experiments to establish the case.
Date: June 7, 2006
Creator: Buckley, Matthew R. & Murayama, Hitoshi
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Silica Extraction at Mammoth Lakes, California

Description: The purpose of this project is to develop a cost-effective method to extract marketable silica (SiO{sub 2}) from fluids at the Mammoth Lakes, California geothermal power plant. Silica provides an additional revenue source for the geothermal power industry and therefore lowers the costs of geothermal power production. The use of this type of ''solution mining'' to extract resources eliminates the need for acquiring these resources through energy intensive and environmentally damaging mining tech… more
Date: June 7, 2006
Creator: Bourcier, W; Ralph, W; Johnson, M; Bruton, C & Gutierrez, P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LLNL Capabilities in Underground Coal Gasification

Description: Underground coal gasification (UCG) has received renewed interest as a potential technology for producing hydrogen at a competitive price particularly in Europe and China. The Lawrence Livermore National Laboratory (LLNL) played a leading role in this field and continues to do so. It conducted UCG field tests in the nineteen-seventies and -eighties resulting in a number of publications culminating in a UCG model published in 1989. LLNL successfully employed the ''Controlled Retraction Injection… more
Date: June 7, 2006
Creator: Friedmann, S J; Burton, E & Upadhye, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Family of Zinc Finger Proteins Is Required forChromosome-specific Pairing and Synapsis during Meiosis in C.elegans

Description: Homologous chromosome pairing and synapsis are prerequisitefor accurate chromosome segregation during meiosis. Here, we show that afamily of four related C2H2 zinc-finger proteins plays a central role inthese events in C. elegans. These proteins are encoded within a tandemgene cluster. In addition to the X-specific HIM-8 protein, threeadditional paralogs collectively mediate the behavior of the fiveautosomes. Each chromosome relies on a specific member of the family topair and synapse with its … more
Date: June 7, 2006
Creator: Phillips, Carolyn M. & Dernburg, Abby F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Integrated modeling and field study of potential mechanisms forinduced seismicity at The Geysers Goethermal Field, California

Description: In this paper, we present progress made in a study aimed atincreasing the understanding of the relative contributions of differentmechanisms that may be causing the seismicity occurring at The Geysersgeothermal field, California. The approach we take is to integrate: (1)coupled reservoir geomechanical numerical modeling, (2) data fromrecently upgraded and expanded NCPA/Calpine/LBNL seismic arrays, and (3)tens of years of archival InSAR data from monthly satellite passes. Wehave conducted a coup… more
Date: June 7, 2006
Creator: Rutqvist, Jonny; Majer, Ernie; Oldenburg, Curt; Peterson, John & Vasco, Don
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Longitudinal Coherence Preservation and Chirp Evolution in a High Gain Laser Seeded Free Electron Laser Amplifier

Description: In this letter we examine the start-up of a high gain free electron laser in which a frequency-chirped coherent seed laser pulse interacts with a relativistic electron beam. A Green function formalism is used to evaluate the initial value problem. We have fully characterized the startup and evolution through the exponential growth regime. We obtain explicit expressions for the pulse duration, bandwidth and chirp of the amplified light and show that the FEL light remains fully longitudinally coh… more
Date: June 7, 2006
Creator: Murphy, J. B.; Wu, Juhao; Wang, X. J. & Watanabe, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Rare Hadronic B Decays

Description: Rare hadronic B-meson decays allow us to study CP violation. The class of B-decays final states containing two vector mesons provides a rich set of angular correlation observables to study. This article reviews some of the recent experimental results from the BABAR and Belle collaborations.
Date: June 7, 2006
Creator: Bevan, A.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Shock Desensitization Effect in the STANAG 4363 Confined Explosive Component Water Gap Test

Description: The Explosive Component Water Gap Test (ECWGT) in the Stanag 4363 has been recently investigated to assess the shock sensitivity of lead and booster components having a diameter less than 5 mm. For that purpose, Pentaerythritol Tetranitrate (PETN) based pellets having a height and diameter of 3 mm have been confined by a steel annulus of wall thickness 1-3.5 mm and with the same height as the pellet. 1-mm wall thickness makes the component more sensitive (larger gap). As the wall thickness is i… more
Date: June 7, 2006
Creator: Lefrancois, A. S.; Lee, R. S. & Tarver, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of the Beam Field in the LCLS Bunch Length Monitor

Description: Maintaining a stable bunch length and peak current is a critical step for the reliable operation of a SASE based x-ray source. In the LCLS, relative bunch length monitors (BLM) right after both bunch compressors are proposed based on the coherent radiation generated by the short electron bunch. Due to its diagnostic setup, the standard far field synchrotron radiation formula and well-developed numerical codes do not apply for the analysis of the BLM performance. In this paper, we develop a calc… more
Date: June 7, 2006
Creator: Stupakov, G.; Ding, Y. & Huang, Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[UNT Buddy System application, 2006]

Description: A form that was used to apply to the Buddy System Mentorship Program during the 2006 spring semester. It asks for students' information and lists contact information for the UNT Multicultural Center at the top.
Date: June 7, 2006
Creator: University of North Texas. Multicultural Center.
Item Type: Refine your search to only Text
Partner: UNT Libraries Special Collections
open access

AIDS: The Ryan White CARE Act

Description: This report discusses the Ryan White Comprehensive AIDS Resources Emergency (CARE) Act, which makes federal funds available to metropolitan areas and states to assist in health care costs and support services for individuals and families affected by the human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS). This report discusses related legislation and appropriations.
Date: June 7, 2006
Creator: Johnson, Judith A. & Morgan, Paulette C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The H II Region of a Primordial Star

Description: The concordance model of cosmology and structure formation predicts the formation of isolated very massive stars at high redshifts in dark matter dominated halos of 10{sup 5} to 10{sup 6} Msun. These stars photo-ionize their host primordial molecular clouds, expelling all the baryons from their halos. When the stars die, a relic H II region is formed within which large amounts of molecular hydrogen form which will allow the gas to cool efficiently when gravity assembles it into larger dark matt… more
Date: June 7, 2006
Creator: Abel, Tom; Wise, John H.; /KIPAC, Menlo Park; Bryan, Greg L. & /Columbia U., Astron. Astrophys.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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