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3-D Thermal Evaluations for a Fueled Experiment in the Advanced Test Reactor

Description: The DOE Advanced Fuel Cycle Initiative and Generation IV reactor programs are developing new fuel types for use in the current Light Water Reactors and future advanced reactor concepts. The Advanced Gas Reactor program is planning to test fuel to be used in the Next Generation Nuclear Plant (NGNP) nuclear reactor. Preliminary information for assessing performance of the fuel will be obtained from irradiations performed in the Advanced Test Reactor large “B” experimental facility. A test configu… more
Date: October 1, 2004
Creator: Ambrosek, Richard; Chang, Gray & Utterbeck, Debra
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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14th Workshop on Crystalline Silicon Solar Cells& Modules: Materials and Processes; Summary of Discussion Sessions

Description: The 14th Workshop discussion sessions addressed funding needs for Si research and for R&D to enhance U.S. PV manufacturing. The wrap-up session specifically addressed topics for the new university silicon program. The theme of the workshop, Crystalline Silicon Solar Cells: Leapfrogging the Barriers, was selected to reflect the astounding progress in Si PV technology during last three decades, despite a host of barriers and bottlenecks. A combination of oral, poster, and discussion sessions … more
Date: October 1, 2004
Creator: Sopori, B.; Tan, T.; Sinton, R. & Swanson, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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2003 SITE ENVIRONMENTAL REPORT

Description: Each year, Brookhaven National Laboratory (BNL), a multi-program national laboratory, prepares an annual Site Environmental Report (SER) in accordance with Order 231.1A, Environment, Safety and Health Reporting, of the U.S. Department of Energy (DOE). The SER is written to inform outside regulators, the public, and Laboratory employees of BNL's environmental performance during the calendar year in review, and to summarize BNL's on-site environmental data; environmental management performance; c… more
Date: October 1, 2004
Creator: DIVISION, ENVIRONMENT AND WASTE MANAGMENT SERVICES & AL., ET
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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2nd International Conference on Pathways, Networks, and Systems: Theory and Experiments

Description: With the availability of whole genome sequences, research attention shifts from gene sequences and genome content to protein functions and systems biology. Genes comprise a major component of the ''parts list'' that is required for building and maintaining of living organisms. Genome DNA sequences reveal the genetic inventory for a rapidly increasing number of species. Defining and interpreting the instruction manual for protein functions, individually and collectively, is the emerging challeng… more
Date: October 1, 2004
Creator: Aegean Conferences
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Advanced Computational Model for Three-Phase Slurry Reactors Progress Report: October 2004

Description: In this project, an Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column was developed. The approach used an Eulerian analysis of liquid flows in the bubble column, and made use of the Lagrangian trajectory analysis for the bubbles and particle motions. The bubble-bubble and particle-particle collisions are included the model. The model predictions are compared with the experimental data and good agreement was found An experimental setup for studying two-dim… more
Date: October 1, 2004
Creator: Ahmadi, Goodarz
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Core Design And Fuel Management For Pebble-Bed Reactors

Description: A method for designing and optimizing recirculating pebble-bed reactor cores is presented. At the heart of the method is a new reactor physics computer code, PEBBED, which accurately and efficiently computes the neutronic and material properties of the asymptotic (equilibrium) fuel cycle. This core state is shown to be unique for a given core geometry, power level, discharge burnup, and fuel circulation policy. Fuel circulation in the pebble-bed can be described in terms of a few well?defined p… more
Date: October 1, 2004
Creator: Gougar, Hans D.; Ougouag, Abderrafi M. & Terry, William K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Testing Techniques to Measure the PWSCC Resistance of Alloy 690 and its Weld Metals

Description: Wrought Alloy 600 and its weld metals (Alloy 182 and Alloy 82) were originally used in pressurized water reactors (PWRs) due to the material's inherent resistance to general corrosion in a number of aggressive environments and because of a coefficient of thermal expansion that is very close to that of low alloy and carbon steel. Over the last thirty years, stress corrosion cracking in PWR primary water (PWSCC) has been observed in numerous Alloy 600 component items and associated welds, sometim… more
Date: October 1, 2004
Creator: P.Andreson
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advances in Comprehensive Gyrokinetic Simulations of Transport in Tokamaks

Description: A continuum global gyrokinetic code GYRO has been developed to comprehensively simulate core turbulent transport in actual experimental profiles and enable direct quantitative comparisons to the experimental transport flows. GYRO not only treats the now standard ion temperature gradient (ITG) mode turbulence, but also treats trapped and passing electrons with collisions and finite {beta}, equilibrium ExB shear stabilization, and all in real tokamak geometry. Most importantly the code operates a… more
Date: October 1, 2004
Creator: Waltz, R. E.; Candy, J.; Hinton, F. L.; Estrada-Mila, C. & Kinsey, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advances in Comprehensive Gyrokinetic Simulations of Transport in Tokamaks

Description: A continuum global gyrokinetic code GYRO has been developed to comprehensively simulate core turbulent transport in actual experimental profiles and enable direct quantitative comparisons to the experimental transport flows. GYRO not only treats the now standard ion temperature gradient (ITG) mode turbulence, but also treats trapped and passing electrons with collisions and finite {beta}, equilibrium ExB shear stabilization, and all in real tokamak geometry. Most importantly the code operates a… more
Date: October 1, 2004
Creator: Waltz, R. E.; Candy, J.; Hinton, F. L.; Estrada-Mila, C. & Kinsey, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Alaska Village Electric Load Calculator

Description: As part of designing a village electric power system, the present and future electric loads must be defined, including both seasonal and daily usage patterns. However, in many cases, detailed electric load information is not readily available. NREL developed the Alaska Village Electric Load Calculator to help estimate the electricity requirements in a village given basic information about the types of facilities located within the community. The purpose of this report is to explain how the load… more
Date: October 1, 2004
Creator: Devine, M. & Baring-Gould, E. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of multichannel internet communication.

Description: A novel method employing machine-based learning to identify messages related to other messages is described and evaluated. This technique may enable an analyst to identify and correlate a small number of related messages from a large sample of individual messages. The classic machine learning techniques of decision trees and naive Bayes classification are seeded with few (or no) messages of interest and 'learn' to identify other related messages. The performance of this approach and these speci… more
Date: October 1, 2004
Creator: Nove, Charles E.; Maclin, Richard Frank; Theuninck, Andrew K. (University of Minnesota-Duluth, Duluth, MN); Newland, Jeremy L. (University of Minnesota-Duluth, Duluth, MN); Torrey, Lisa A. (University of Wisconsin-Madison, Madison, WI) & Robinson, Eric R. (University of Wisconsin-Madison, Madison, WI)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Applications of the 3-D Deterministic Transport Code Attlla for Core Safety Analysis

Description: An LDRD (Laboratory Directed Research and Development) project is ongoing at the Idaho National Engineering and Environmental Laboratory (INEEL) for applying the three-dimensional multi-group deterministic neutron transport code (Attila®) to criticality, flux and depletion calculations of the Advanced Test Reactor (ATR). This paper discusses the model development, capabilities of Attila, generation of the cross-section libraries, and comparisons to an ATR MCNP model and future.
Date: October 1, 2004
Creator: Lucas, D. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

APS Neutrino Study: Report of the neutrino astrophysics and cosmology working group

Description: In 2002, Ray Davis and Masatoshi Koshiba were awarded the Nobel Prize in Physics 'for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos'. However, while astronomy has undergone a revolution in understanding by synthesizing data taken at many wavelengths, the universe has only barely been glimpsed in neutrinos, just the Sun and the nearby SN 1987A. An entire universe awaits, and since neutrinos can probe astrophysical objects at densities, energies, an… more
Date: October 2004
Creator: Barwick, Steve W.; Beacom, John F.; Cianciolo, Vince; Dodelson, Scott; Feng, Jonathan L.; Fuller, George M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Automated Diagnosis and Classification of Steam Generator Tube Defects

Description: A major cause of failure in nuclear steam generators is tube degradation. Tube defects are divided into seven categories, one of which is intergranular attack/stress corrosion cracking (IGA/SCC). Defects of this type usually begin on the outer surface of the tubes and propagate both inward and laterally. In many cases these defects occur at or near the tube support plates. Several different methods exist for the nondestructive evaluation of nuclear steam generator tubes for defect characterizat… more
Date: October 1, 2004
Creator: Garcia, Gabe V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The BTeV trigger and data acquisition system

Description: The BTeV trigger inspects every beam crossing of the Fermilab Tevatron, running at a luminosity of 2 x 10{sup 32}/cm{sup 2}-s, and selects events that have ''detached vertices'' from B decays occurring downstream of the main interaction. The system uses a massively parallel system of FPGAs and microprocessors to produce a trigger decision on average every 396 ns. The trigger calculations are facilitated by the 23 Million channel pixel detector that provides the input to the trigger. Front end e… more
Date: October 1, 2004
Creator: Butler, Joel N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cable testing for Fermilab's high field magnets using small racetrack coils

Description: As part of the High Field Magnet program at Fermilab simple magnets have been designed utilizing small racetrack coils based on a sound mechanical structure and bladder technique developed by LBNL. Two of these magnets have been built in order to test Nb{sub 3}Sn cables used in cos-theta dipole models. The powder-in-tube strand based cable exhibited excellent performance. It reached its critical current limit within 14 quenches. Modified jelly roll strand based cable performance was limited by … more
Date: October 1, 2004
Creator: Feher, S.; Ambrosio, G.; Andreev, N.; Barzi, E.; Bordini, B.; Bossert, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Cancer and aging: The importance of telomeres in genome maintenance

Description: Telomeres are the specialized DNA-protein structures that cap the ends of linear chromosomes, thereby protecting them from degradation and fusion by cellular DNA repair processes. In vertebrate cells, telomeres consist of several kilobase pairs of DNA having the sequence TTAGGG, a few hundred base pairs of single-stranded DNA at the 3' end of the telomeric DNA tract, and a host of proteins that organize the telomeric double and single stranded DNA into a protective structure. Functional telomer… more
Date: October 1, 2004
Creator: Rodier, Francis; Kim, Sahn-ho; Nijjar, Tarlochan; Yaswen, Paul & Campisi, Judith
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A capillary valve for microfluidic systems.

Description: Microfluidic systems are becoming increasingly complicated as the number of applications grows. The use of microfluidic systems for chemical and biological agent detection, for example, requires that a given sample be subjected to many process steps, which requires microvalves to control the position and transport of the sample. Each microfluidic application has its own specific valve requirements and this has precipitated the wide variety of valve designs reported in the literature. Each of th… more
Date: October 1, 2004
Creator: Cummings, Eric B.; Kanouff, Michael P. & Rush, Brian M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon allocation and nitrogen acquisition in a developing Populus deltoides plantation.

Description: We established Populus deltoides Bartr. stands differing in nitrogen (N) availability and tested if: (1) N-induced carbon (C) allocation could be explained by develop- mental allocation controls; and (2) N uptake per unit root mass, i.e., specific N-uptake rate, increased with N availability. Closely spaced (1 × 1 m) stands were treated with 50, 100 and 200 kg N ha -1 year 1-1 of time-release balanced fertilizer (50N, 100N and 200N) and compared with unfertilized controls (0N). Measurements wer… more
Date: October 1, 2004
Creator: Coleman, Mark D.; Friend, Alexander L. & Kern, Christel C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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