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459 Matching Results
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The Low-Income Home Energy Assistance Program: How are State Allotments Determined?
This report discusses the Low-Income Home Energy Assistance Program (LIHEAP), which is a block grant program under which the federal government provides states annual grants to operate multi-component home energy assistance programs for needy households.
Date:
April 17, 2001
Creator:
Abbey, Craig W.
Object Type:
Report
System:
The UNT Digital Library
High Sensitivity Low Fluorescence Detection for Beryllium Particulates SBIR Phase I Final Report ER84587
Abstract: The technical objective in Phase I was to enhance the detection limit of beryllium using fluorescence system by a minimum factor of 10. This was to be achieved by modifying the chemistry and instrumentation. Both of these were completed independently. In each case we were able to lower the detection limit as desired. The objectives in Phase II are to adapt these changes for commercial activity (chemicals and instrument changes including automation).
Date:
April 17, 2007
Creator:
Agrawal, Anoop; Tonazzi, Juan Carlos Lopez & Cronin, John
Object Type:
Report
System:
The UNT Digital Library
Portable and Transparent Message Compression in MPI Libraries to Improve the Performance and Scalability of Parallel Applications
The goal of this project has been to develop a lossless compression algorithm for message-passing libraries that can accelerate HPC systems by reducing the communication time. Because both compression and decompression have to be performed in software in real time, the algorithm has to be extremely fast while still delivering a good compression ratio. During the first half of this project, they designed a new compression algorithm called FPC for scientific double-precision data, made the source code available on the web, and published two papers describing its operation, the first in the proceedings of the Data Compression Conference and the second in the IEEE Transactions on Computers. At comparable average compression ratios, this algorithm compresses and decompresses 10 to 100 times faster than BZIP2, DFCM, FSD, GZIP, and PLMI on the three architectures tested. With prediction tables that fit into the CPU's L1 data acache, FPC delivers a guaranteed throughput of six gigabits per second on a 1.6 GHz Itanium 2 system. The C source code and documentation of FPC are posted on-line and have already been downloaded hundreds of times. To evaluate FPC, they gathered 13 real-world scientific datasets from around the globe, including satellite data, crash-simulation data, and …
Date:
April 17, 2009
Creator:
Albonesi, David & Burtscher, Martin
Object Type:
Text
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 16, Ed. 1 Thursday, April 17, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
April 17, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
APMS SVD methodology and implementation
One of the main tasks within the Aviation Performance Measurement System (APMS) program uses statistical methodologies to find atypical flights. With thousands of flights a day and hundreds of parameters being recorded every second for each flight, the amount of data escalates and the ability to find atypical flights becomes more difficult. The purpose of this paper is to explain the method known as single value decomposition (SVD) employed to search for the atypical flights and display useful graphics that facilitate understanding the causes of atypicality for these flights. Other methods could also perform this search and some are planned for future implementation.
Date:
April 17, 2000
Creator:
Amidan, B. G. & Ferryman, T. A.
Object Type:
Report
System:
The UNT Digital Library
Application of a XMM-Newton EPIC Monte Carlo to Analysis And Interpretation of Data for Abell 1689, RXJ0658-55 And the Centaurus Clusters of Galaxies
We propose a new Monte Carlo method to study extended X-ray sources with the European Photon Imaging Camera (EPIC) aboard XMM Newton. The Smoothed Particle Inference (SPI) technique, described in a companion paper, is applied here to the EPIC data for the clusters of galaxies Abell 1689, Centaurus and RXJ 0658-55 (the ''bullet cluster''). We aim to show the advantages of this method of simultaneous spectral-spatial modeling over traditional X-ray spectral analysis. In Abell 1689 we confirm our earlier findings about structure in temperature distribution and produce a high resolution temperature map. We also confirm our findings about velocity structure within the gas. In the bullet cluster, RXJ 0658-55, we produce the highest resolution temperature map ever to be published of this cluster allowing us to trace what looks like the motion of the bullet in the cluster. We even detect a south to north temperature gradient within the bullet itself. In the Centaurus cluster we detect, by dividing up the luminosity of the cluster in bands of gas temperatures, a striking feature to the north-east of the cluster core. We hypothesize that this feature is caused by a subcluster left over from a substantial merger that slightly displaced the …
Date:
April 17, 2007
Creator:
Andersson, Karl E.; /SLAC, /Stockholm U.; Peterson, J.R.; /Purdue U. /KIPAC, Menlo Park; Madejski, G.M. & /SLAC /KIPAC, Menlo Park
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 107, No. 14, Ed. 1 Sunday, April 17, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 17, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Hydrogen-filled RF Cavities for Muon Beam Cooling
Ionization cooling requires low-Z energy absorbers immersed in a strong magnetic field and high-gradient, large-aperture RF cavities to be able to cool a muon beam as quickly as the short muon lifetime requires. RF cavities that operate in vacuum are vulnerable to dark-current- generated breakdown, which is exacerbated by strong magnetic fields, and they require extra safety windows that degrade cooling, to separate RF regions from hydrogen energy absorbers. RF cavities pressurized with dense hydrogen gas will be developed that use the same gas volume to provide the energy absorber and the RF acceleration needed for ionization cooling. The breakdown suppression by the dense gas will allow the cavities to operate in strong magnetic fields. Measurements of the operation of such a cavity will be made as functions of external magnetic field and charged particle beam intensity and compared with models to understand the characteristics of this technology and to develop mitigating strategies if necessary.
Date:
April 17, 2009
Creator:
Ankenbrandt, Charles
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report for University of Michigan Industrial Assessment Center
The UM Industrial Assessment Center assisted 119 primary metals, automotive parts, metal casting, chemicals, forest products, agricultural, and glass manufacturers in Michigan, Ohio and Indiana to become more productive and profitable by identifying and recommending specific measures to improve energy efficiency, reduce waste and increase productivity. This directly benefits the environment by saving a total of 309,194 MMBtu of energy resulting in reduction of 0.004 metric tons of carbon emissions. The $4,618,740 implemented cost savings generated also saves jobs that are evaporating from the manufacturing industries in the US. Most importantly, the UM Industrial Assessment Center provided extremely valuable energy education to forty one UM graduate and undergraduate students. The practical experience complements their classroom education. This also has a large multiplier effect because the students take the knowledge and training with them.
Date:
April 17, 2007
Creator:
Atreya, Arvind
Object Type:
Report
System:
The UNT Digital Library
A Search for B^{+} \to \ell^{+} \nu_{\ell} Recoiling Against B^{-} \to D^{(*)0}\ell^{-}\bar{\nu}X
We present a search for the decay B{sup +} {yields} {ell}{sup +} {nu}{sub {ell}} ({ell} = {tau}, {mu}, or e) in (458.9 {+-} 5.1) x 10{sup 6} {Upsilon}(4S) decays recorded with the BABAR detector at the SLAC PEP-IIB-Factory. A sample of events with one reconstructed exclusive semi-leptonic B decay (B{sup -} {yields} D{sup 0} {ell}{sup -}{bar {nu}}X) is selected, and in the recoil a search for B{sup +} {yields} {ell}{sup +}{nu}{sub {ell}} signal is performed. The {tau} is identified in the following channels: {tau}{sup +} {yields} e{sup +}{nu}{sub e}{nu}{sub {tau}}, {tau}{sup +} {yields} {mu}{sup +}{nu}{sub {mu}}{nu}{sub {tau}}, {tau}{sup +} {yields} {pi}{sup +}{nu}{sub {tau}}, and {tau}{sup +} {yields} {pi}{sup +}{pi}{sup 0}{nu}{sub {tau}}. The analysis strategy and the statistical procedure is set up for branching fraction extraction or upper limit determination. We determine from the dataset a preliminary measurement of {Beta}(B{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) = (1.8 {+-} 0.8 {+-} 0.1) x 10{sup -4}, which excludes zero at 2.4{sigma}, and f{sub B} = 230 {+-} 57 MeV. Combination with the hadronically tagged measurement yields {Beta}(B{sup +} {yields} e{sup +}{nu}{sub e}) = (1.8 {+-} 0.6) x 10{sup -4}. We also set preliminary limits on the branching fractions at {Beta}(B{sup +} {yields} e{sup …
Date:
April 17, 2009
Creator:
Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Spent Nuclear Fuel (SNF) Project Canister Storage Building (CSB) System Design Descriptions
None
Date:
April 17, 2000
Creator:
BLACK, D.M.
Object Type:
Report
System:
The UNT Digital Library
Scalability limitations of VIA-based technologies in supporting MPI
This paper analyzes the scalability limitations of networking technologies based on the Virtual Interface Architecture (VIA) in supporting the runtime environment needed for an implementation of the Message Passing Interface. The authors present an overview of the important characteristics of VIA and an overview of the runtime system being developed as part of the Computational Plant (Cplant) project at Sandia National Laboratories. They discuss the characteristics of VIA that prevent implementations based on this system to meet the scalability and performance requirements of Cplant.
Date:
April 17, 2000
Creator:
BRIGHTWELL,RONALD B. & MACCABE,ARTHUR BERNARD
Object Type:
Article
System:
The UNT Digital Library
Solid Waste Processing Center Primary Opening Cells Systems, Equipment and Tools
This document addresses the remote systems and design integration aspects of the development of the Solid Waste Processing Center (SWPC), a facility to remotely open, sort, size reduce, and repackage mixed low-level waste (MLLW) and transuranic (TRU)/TRU mixed waste that is either contact-handled (CH) waste in large containers or remote-handled (RH) waste in various-sized packages.
Date:
April 17, 2006
Creator:
Bailey, Sharon A.; Baker, Carl P.; Mullen, O Dennis & Valdez, Patrick LJ
Object Type:
Report
System:
The UNT Digital Library
Energy Policy: The Continuing Debate
On April 10, 2003, the House passed comprehensive energy legislation, H.R. 6 (247- 175). The bill was a composite of four measures – H.R. 39, reported from the House Committee on Resources, H.R. 238, marked up by the House Science Committee, H.R. 1531, reported from Ways and Means, and an unnumbered bill reported out of the Energy and Commerce Committee. Unlike comprehensive energy legislation (H.R. 4) debated in the 107th Congress, H.R. 6 includes a section on electricity which has stirred some controversy. H.R. 6 would provide authorization for exploration and development of the Arctic National Wildlife Refuge (ANWR).
Date:
April 17, 2003
Creator:
Bamberger, Robert L.
Object Type:
Report
System:
The UNT Digital Library
SRP engineering and design history, Vol III, 200 F and H Areas
This volume combines the record of events relating to the development of design for both the 200-F and H Areas. Chronologically, the definition of plant facilities was first established for the 200-F Area. The second area, 200-H, was projected initially to be a supplementary plutonium separations facility. This history explains the differences in character and capacity of the manufacturing facilities in both areas as production requirements and experience with separations processes advanced.
Date:
April 17, 2000
Creator:
Banick, C. J.
Object Type:
Report
System:
The UNT Digital Library
PZ Fiber Loss Measurements at LLNL and Plan to Confirm Results at CEA/Thomson
The objective of this paper is to confirm the slow-axis loss of less than 0.1 dB/m for the PZ fiber manufactured for LLNL by 3M and to provide samples of the fiber to CEA/Thomson that will permit them to readily verify this result.
Date:
April 17, 2000
Creator:
Bass, I.L.
Object Type:
Report
System:
The UNT Digital Library
The Natural Resources and Environment Function in the FY2001 Federal Budget: An Overview of Programs and Funding
None
Date:
April 17, 2000
Creator:
Bearden, David M.
Object Type:
Report
System:
The UNT Digital Library
South Texas Catholic (Corpus Christi, Tex.), Vol. 44, No. 8, Ed. 1 Friday, April 17, 2009
Semi-monthly newspaper from Corpus Christi, Texas published by the Diocese of Corpus Christi that includes news of interest to Diocese members along with advertising.
Date:
April 17, 2009
Creator:
Beaton, Paula J.
Object Type:
Newspaper
System:
The Portal to Texas History
Federal Farm Promotion (“Check-Off”) Programs
None
Date:
April 17, 2007
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Safety Guidelines for Laser Illumination on Exposed High Explosives and Metals in Contact with High Explosives with Calculational Results
Experimental tests have been undertaken to determine safe levels of laser exposure on bare high explosive (HE) samples and on common metals used in intimate contact with HE. Laser light is often focused on bare HE and upon metals in contact with HE during alignment procedures and experimental metrology experiments. This paper looks at effects caused by focusing laser beams at high energy densities directly onto the surface of various bare HE samples. Laser energy densities (fluence) exceeding 19 kilowatts/cm{sup 2} using a 5-milliwatt, 670 nm, cw laser diode were generated by focusing the laser down to a spot size diameter of 4 microns. Upon careful inspection, no laser damage was observed in any of the HE samples illuminated at this fluence level. Direct laser exposure of metals directly contacting HE surfaces was also tested. Laser energy densities (fluence) varying from 188 Watts/cm{sup 2} to 12.7 KW/cm{sup 2} were generated using an 11-Watt, 532 nm frequency-doubled Nd:YAG cw laser with focal spot size diameters as small as 100 microns. These measurements look at the temperature rise of the surface of the metal in contact with HE when laser energy is incident on the opposite side of the metal. The temperature …
Date:
April 17, 2002
Creator:
Benterou, J; Roeske, F; Wilkins, P & Carpenter, K H
Object Type:
Article
System:
The UNT Digital Library
Director of National Intelligence Statutory Authorities: Status and Proposals
This report contains the status and proposals of the director of national intelligence statutory authorities.
Date:
April 17, 2008
Creator:
Best, Richard A., Jr. & Cumming, Alfred
Object Type:
Report
System:
The UNT Digital Library
The Discharge Rule in the House: Recent Use in Historical Context
This report discusses the "discharge rule" of the House of Representatives, which provides a means by which a majority of Members may bring to the floor for consideration a measure that has not been reported from committee.
Date:
April 17, 2003
Creator:
Beth, Richard S.
Object Type:
Report
System:
The UNT Digital Library
The Discharge Rule in the House: Recent Use in Historical Context
The discharge rule of the House of Representatives affords a way for Members to bring to the floor a measure not reported from committee. Before a motion to discharge may be made, 218 Members must sign a petition for that purpose. This report provides summary data on discharge petitions filed since adoption of the present form of discharge rule in 1931. It also identifies the 32 occasions since 1967 on which a committee report or floor action occurred on a measure against which a petition was filed (or an alternative measure on the same subject).
Date:
April 17, 2003
Creator:
Beth, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Visapult: A Prototype Remote and Distributed Visualization Application and Framework
We describe an approach used for implementing a highly efficient and scalable method for direct volume rendering. Our approach uses a pipelined-parallel decomposition composed of parallel computers and commodity desktop hardware. With our approach, desktop interactivity is divorced from the latency inherent in network-based applications.
Date:
April 17, 2000
Creator:
Bethel, Wes
Object Type:
Article
System:
The UNT Digital Library