36 Matching Results

Search Results

Results: 1 - 24 next
open access

Disaster Assistance: Federal Efforts to Assist Group Site Residents with Employment, Services for Families with Children, and Transportation

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In August 2005, Hurricane Katrina caused more damage than any other single natural disaster in U.S. history, with Hurricane Rita adding to the devastation. The hurricanes hit some of the most distressed areas in the country. Louisiana and Mississippi had the highest poverty rates in the United States, according to the 2000 U.S. Census. Hurricane Katrina destroyed or made uninhabitable an estimated 300,0… more
Date: December 11, 2008
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Status of GAO Recommendations to the Department of Defense (Fiscal Years 2001-2007)

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "Section 402 of the Concurrent Resolution on the Budget for Fiscal Year 2009 required us to report to the appropriate congressional committees by the end of the 110th Congress regarding the Department of Defense's (DOD) progress in implementing GAO's recommendations over the last 7 years. During this period of time, we issued 637 reports to DOD or its components that included 2,726 recommendations. By law… more
Date: December 11, 2008
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

SUSY Without Prejudice at Linear Colliders

Description: We explore the physics of the general CP-conserving MSSM with Minimal Flavor Violation, the pMSSM. The 19 soft SUSY breaking parameters are chosen so to satisfy all existing experimental and theoretical constraints assuming that the WIMP is the lightest neutralino. We scan this parameter space twice using both flat and log priors and compare the results which yield similar conclusions. Constraints from both LEP and the Tevatron play an important role in obtaining our final model samples. Implic… more
Date: December 11, 2008
Creator: Rizzo, Thomas G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Global paths of time-periodic solutions of the Benjamin-Ono equation connecting arbitrary traveling waves

Description: We classify all bifurcations from traveling waves to non-trivial time-periodic solutions of the Benjamin-Ono equation that are predicted by linearization. We use a spectrally accurate numerical continuation method to study several paths of non-trivial solutions beyond the realm of linear theory. These paths are found to either re-connect with a different traveling wave or to blow up. In the latter case, as the bifurcation parameter approaches a critical value, the amplitude of the initial condi… more
Date: December 11, 2008
Creator: Ambrose, David M. & Wilkening, Jon
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

HYDROGEN EFFECTS ON STRAIN-INDUCED MARTENSITE FORMATION IN TYPE 304L STAINLESS STEEL

Description: Unstable austenitic stainless steels undergo a strain-induced martensite transformation. The effect of hydrogen on this transformation is not well understood. Some researchers believe that hydrogen makes the transformation to martensite more difficult because hydrogen is an austenite stabilizer. Others believe that hydrogen has little or no effect at all on the transformation and claim that the transformation is simply a function of strain and temperature. Still other researchers believe that h… more
Date: December 11, 2008
Creator: Morgan, M & Ps Lam, P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

KPiX, An Array of Self Triggered Charge Sensitive Cells Generating Digital Time and Amplitude Information

Description: The Silicon Detector proposed for the International Linear Collider (ILC) requires electronic read-out that can be tightly coupled to the silicon detectors envisioned for the tracker and the electromagnetic calorimeter. The KPiX is a 1024-channel read-out chip that bump-bonds to the detector and communicates through a few digital signals, power, and detector bias. The KPiX front-end is a low-noise dual-range charge-amplifier with a dynamic range of 17 bit, achieved by autonomous switching of th… more
Date: December 11, 2008
Creator: Freytag, D.; Herbst, R.; /SLAC; Brau, J.; U., /Oregon; Breidenbach, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Search For the Lepton-Flavor Violating Decays Y(3S)->e tau and Y(3S)->mu tau

Description: Charged lepton-flavor violating processes are extremely rare in the Standard Model, but they are predicted to occur in several beyond-the-Standard Model theories, including Supersymmetry or models with leptoquarks or compositeness. We present a search for such processes in a sample of 117 x 10{sup 6} {Upsilon}(3S) decays recorded with the BABAR detector. We place upper limits on the branching fractions BF({Upsilon}(3S) {yields} e{sup {+-}}{tau}{sup {-+}}) < 5.0 x 10{sup -6} and BF({Upsilon}(… more
Date: December 11, 2008
Creator: Aubert, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Dynamic Imaging of Surface Motion with a Stereo Borescope

Description: A new stereo borescope has been investigated that would provide a time-resolved calibrated method of recording the motion and deformation of a three-dimensional (3-D) surface during explosively driven dynamic shock experiments at the Nevada Test Site. In these experiments, geometries would likely prove to be incompatible with conventional direct optical systems. Single line-of-sight borescopes lack adequate depth-of-field for quantitative imaging of the 3-D surface. To improve depth-of-field an… more
Date: December 11, 2008
Creator: Berninger, Michael & Baker, Stuart
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Extending the Posix I/O Interface: A Parallel File System Perspective.

Description: The POSIX interface does not lend itself well to enabling good performance for high-end applications. Extensions are needed in the POSIX I/O interface so that high-concurrency HPC applications running on top of parallel file systems perform well. This paper presents the rationale, design, and evaluation of a reference implementation of a subset of the POSIX I/O interfaces on a widely used parallel file system (PVFS) on clusters. Experimental results on a set of micro-benchmarks confirm that the… more
Date: December 11, 2008
Creator: Vilayannur, M.; Lang, S.; Ross, R.; Klundt, R.; Ward, L.; Science, Mathematics and Computer et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modular Optical PDV System

Description: A modular optical photon Doppler velocimetry (PDV) detector system has been developed by using readily available optical components with a 20-GHz Miteq optical detector into eight channels of single-wide modules integrated into a 3U rack unit (1U = 1.75 inches) with a common power supply. Optical fibers were precisely trimmed, welded, and timed within each unit. This system has been used to collect dynamic velocity data on various physics experiments. An optical power meter displays the laser i… more
Date: December 11, 2008
Creator: Araceli Rutkowski, David Esquibel
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electronically Nonadiabatic Dynamics via Semiclassical Initial Value Methods

Description: In the late 1970's Meyer and Miller (MM) [J. Chem. Phys. 70, 3214 (1979)] presented a classical Hamiltonian corresponding to a finite set of electronic states of a molecular system (i.e., the various potential energy surfaces and their couplings), so that classical trajectory simulations could be carried out treating the nuclear and electronic degrees of freedom (DOF) in an equivalent dynamical framework (i.e., by classical mechanics), thereby describing non-adiabatic dynamics in a more unified… more
Date: December 11, 2008
Creator: Miller, William H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen