15 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Tolerance"  
Results: 1 - 15
open access

Range of Applicability and Bias Determination for Postclosure Criticality of Commercial Spent Nuclear Fuel

Description: The purpose of this calculation report, Range of Applicability and Bias Determination for Postclosure Criticality of Commercial Spent Nuclear Fuel, is to validate the computational method used to perform postclosure criticality calculations. The validation process applies the criticality analysis methodology approach documented in Section 3.5 of the Disposal Criticality Analysis Methodology Topical Report. The application systems for this validation consist of waste packages containing transpor… more
Date: October 1, 2007
Creator: Radulescu, Georgeta; Mueller, Don; Goluoglu, Sedat; Hollenbach, Daniel F & Fox, Patricia B
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

3D circuit integration for Vertex and other detectors

Description: High Energy Physics continues to push the technical boundaries for electronics. There is no area where this is truer than for vertex detectors. Lower mass and power along with higher resolution and radiation tolerance are driving forces. New technologies such as SOI CMOS detectors and three dimensional (3D) integrated circuits offer new opportunities to meet these challenges. The fundamentals for SOI CMOS detectors and 3D integrated circuits are discussed. Examples of each approach for physics … more
Date: September 1, 2007
Creator: Yarema, Ray
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multithreading for Synchronization Tolerance in MatrixFactorization

Description: Physical constraints such as power, leakage and pin bandwidth are currently driving the HPC industry to produce systems with unprecedented levels of concurrency. In these parallel systems, synchronization and memory operations are becoming considerably more expensive than before. In this work we study parallel matrix factorization codes and conclude that they need to be re-engineered to avoid unnecessary (and expensive) synchronization. We propose the use of multithreading combined with intelli… more
Date: July 16, 2007
Creator: Buttari, Alfredo; Dongarra, Jack; Husbands, Parry; Kurzak, Jakub & Yelick, Katherine
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ultrafast Control of the electronic phase of a manganite viamode-selective vibrational excitation

Description: Controlling a phase of matter by coherently manipulatingspecific vibrational modes has long been an attractive (yet elusive) goalfor ultrafast science. Solids with strongly correlated electrons, inwhich even subtle crystallographic distortions can result in colossalchanges of the electronic and magnetic properties, could be directedbetween competing phases by such selective vibrational excitation. Inthis way, the dynamics of the electronic ground state of the systembecome accessible, and new in… more
Date: May 1, 2007
Creator: Rini, Matteo; Tobey, Ra'anan I.; Dean, Nicky; Tokura, Yoshinori; Schoenlein, Robert W. & Cavalleri, Andrea
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nanostructured Solid Oxide Fuel Cell Electrodes

Description: The ability of Solid Oxide Fuel Cells (SOFC) to directly and efficiently convert the chemical energy in hydrocarbon fuels to electricity places the technology in a unique and exciting position to play a significant role in the clean energy revolution. In order to make SOFC technology cost competitive with existing technologies, the operating temperatures have been decreased to the range where costly ceramic components may be substituted with inexpensive metal components within the cell and stac… more
Date: December 15, 2007
Creator: Sholklapper, Tal Zvi
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

A functional gene array for detection of bacterial virulence elements

Description: We report our development of the first of a series of microarrays designed to detect pathogens with known mechanisms of virulence and antibiotic resistance. By targeting virulence gene families as well as genes unique to specific biothreat agents, these arrays will provide important data about the pathogenic potential and drug resistance profiles of unknown organisms in environmental samples. To validate our approach, we developed a first generation array targeting genes from Escherichia coli s… more
Date: November 1, 2007
Creator: Jaing, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT AND APPLICATION OF MATERIALS PROPERTIES FOR FLAW STABILITY ANALYSIS IN EXTREME ENVIRONMENT SERVICE

Description: Discovery of aging phenomena in the materials of a structure may arise after its design and construction that impact its structural integrity. This condition can be addressed through a demonstration of integrity with the material-specific degraded conditions. Two case studies of development of fracture and crack growth property data, and their application in development of in-service inspection programs for nuclear structures in the defense complex are presented. The first case study covers the… more
Date: April 18, 2007
Creator: Sindelar, R; Ps Lam, P; Andrew Duncan, A; Bruce Wiersma, B; Karthik Subramanian, K & James Elder, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-Order Modeling of an Erl for Electron Cooling in the Rhic Luminosity Upgrade Using Marylie/Impact.

Description: Plans for the RHIC luminosity upgrade call for an electron cooling system that will place substantial demands on the energy, current, brightness, and beam quality of the electron beam. In particular, the requirements demand a new level of fidelity in beam dynamics simulations. New developments in MARYLIE/IMPACT have improved both the space charge computations for beams with large aspect ratios and the beam dynamic computations for rf cavities. We present the results of beam dynamics simulations… more
Date: June 25, 2007
Creator: Ranjbar, V.; Ben-Zvi, Ilan; Paul, K.; Abell, D. T.; Kewisch, J.; Ryne, R. D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

HPC-Colony: Services and Interfaces to Aupport Systems With Very Large Numbers of Processors

Description: The HPC-Colony Project, a collaboration with Lawrence Livermore National Laboratory, the University of Illinois at Urbana-Champaign and IBM, is focused on services and interfaces for very large numbers of processors. Advances in parallel systems in the last decade have delivered phenomenal progress in the overall capability available to a single parallel application. Several systems with peak capability of over 100TF are already available and systems are expected to exceed 1PF within a few year… more
Date: January 31, 2007
Creator: Jones, Terry; Kale, Laxmikant; Moreira, Jose; Mendes, Celso; Chakravorty, Sayantan; Tauferner, Andrew et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cooperative fault-tolerant distributed computing U.S. Department of Energy Grant DE-FG02-02ER25537 Final Report

Description: The Harness project has developed novel software frameworks for the execution of high-end simulations in a fault-tolerant manner on distributed resources. The H2O subsystem comprises the kernel of the Harness framework, and controls the key functions of resource management across multiple administrative domains, especially issues of access and allocation. It is based on a “pluggable” architecture that enables the aggregated use of distributed heterogeneous resources for high performance computi… more
Date: January 9, 2007
Creator: Sunderam, Vaidy S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DOWN-STREAM SPATIAL DISTRIBUTION OF ANTIBIOTIC RESISTANCE TRAITS ALONG METAL CONTAMINATED STREAM REACHES

Description: Sediment bacteria samples were collected from three streams in South Carolina, two contaminated with multiple metals (Four Mile Creek and Castor Creek), one uncontaminated (Meyers Branch), and another metal contaminated stream (Lampert Creek) in northern Washington State. Growth plates inoculated with Four Mile Creek sample extracts show bacteria colony growth after incubation on plates containing either one of two aminoglycosides (kanamycin or streptomycin), tetracycline or chloramphenocol. Th… more
Date: April 16, 2007
Creator: Tuckfield, C & J V Mcarthur (NOEMAIL), J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Accelerating Polarized Protons to 250 GEV

Description: The Relativistic Heavy Ion Collider (RHIC) as the first high energy polarized proton collider was designed t o provide polarized proton collisions a t a maximum beam energy of 250 GeV. I t has been providing collisions a t a beam energy of 100 Gel' since 2001. Equipped with two full Siberian snakes in each ring, polarization is preserved during the acceleration from injection to 100 GeV with careful control of the betatron tunes and the vertical orbit distortions. However, the intrinsic spin re… more
Date: June 25, 2007
Creator: Bai, M.; Ahrens, L.; Alekseev, I. G.; Alessi, J.; Beebe-Wang, J. & AL., ET
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DISPERSION TOLERANCE CALCULATION FOR NSLS-II.

Description: In this paper we discuss the effect on the emittance of the residual dispersion in the insertion devices. The dispersion in the straights could be generated by the lattice error, trim dipole, and insertion device. The effect on the emittance is examined, and the dispersion tolerances are given for the NSLS-11.
Date: June 25, 2007
Creator: LIN,F. & GUO, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Production Summary for Extended Barrel Module Fabrication at Argonne for the Atlas Tile Calorimeter.

Description: The Tile Calorimeter is one of the main hadronic calorimeters to be used in the ATLAS experiment at CERN [1,2]. It is a steel/scintillator sampling calorimeter which is built by stacking 64 segments in azimuth and 3 separate cylinders to provide a total structure whose length is approximately 12m and whose diameter is a little over 8.4m. It has a total weight of about 2630 metric tons. Important features of this calorimeter are: A minimum gap (1.5mm) between modules in azimuth; Pockets in the s… more
Date: November 14, 2007
Creator: Guarino, V.; Hill, N.; Petereit, E.; Skrzecz, F.; Wood, K.; Proudfoot, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Realistic Probability Estimates For Destructive Overpressure Events In Heated Center Wing Tanks Of Commercial Jet Aircraft

Description: The Federal Aviation Administration (FAA) identified 17 accidents that may have resulted from fuel tank explosions on commercial aircraft from 1959 to 2001. Seven events involved JP 4 or JP 4/Jet A mixtures that are no longer used for commercial aircraft fuel. The remaining 10 events involved Jet A or Jet A1 fuels that are in current use by the commercial aircraft industry. Four fuel tank explosions occurred in center wing tanks (CWTs) where on-board appliances can potentially transfer heat to … more
Date: February 7, 2007
Creator: Alvares, N. & Lambert, H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen