6,917 Matching Results

Search Results

Results: 1 - 24 next
open access

Environmentally Assisted Cracking in Light Water Reactors - Annual Report, January-December 2001.

Description: This report summarizes work performed by Argonne National Laboratory on fatigue and environmentally assisted cracking (EAC) in light water reactors (LWRs) from January to December 2001. Topics that have been investigated include (a) environmental effects on fatigue S-N behavior of austenitic stainless steels (SSs), (b) irradiation-assisted stress corrosion cracking (IASCC) of austenitic SSs, and (c) EAC of Alloy 600. The effects of key material and loading variables, such as strain amplitude, s… more
Date: June 1, 2003
Creator: Chopra, O. K.; Chung, H. M.; Clark, R. W.; Gruber, E. E; Hiller, R. W.; Shack, W. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling and Simulation of Long-Term Performance of Near-Surface Barriers

Description: Society has and will continue to generate hazardous wastes whose risks must be managed. For exceptionally toxic, long-lived, and feared waste, the solution is deep burial, e.g., deep geological disposal at Yucca Mtn. For some waste, recycle or destruction/treatment is possible. The alternative for other wastes is storage at or near the ground level (in someone’s back yard); most of these storage sites include a surface barrier (cap) to prevent migration of the waste due to infiltration of surfa… more
Date: February 1, 2003
Creator: Piet, Steven James; Jacobson, Jacob Jordan; Soto, Rafael; Martian, Pete & Martineau, Richard Charles
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Confederated Tribes of the Warm Springs Indian Reservation of Oregon John Day Basin Office : Watershed Restoration Projects : 2002 Annual Report.

Description: The John Day is the nation's second longest free-flowing river in the contiguous United States and the longest containing entirely unsupplemented runs of anadromous fish. Located in eastern Oregon, the basin drains over 8,000 square miles, Oregon's fourth largest drainage basin, and incorporates portions of eleven counties. Originating in the Strawberry Mountains near Prairie City, the John Day River flows 284 miles in a northwesterly direction, entering the Columbia River approximately four mi… more
Date: June 30, 2003
Creator: Office., Confederated Tribes of the Warm Springs Reservation of Oregon. John Day Basin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Transmission electron microscopy of oxide dispersion strengthened (ODS) molybdenum: effects of irradiation on material microstructure

Description: Oxide dispersion strengthened (ODS) molybdenum has been characterized using transmission electron microscopy (TEM) to determine the effects of irradiation on material microstructure. This work describes the results-to-date from TEM characterization of unirradiated and irradiated ODS molybdenum. The general microstructure of the unirradiated material consists of fine molybdenum grains (< 5 {micro}m average grain size) with numerous low angle boundaries and isolated dislocation networks. 'Ribb… more
Date: March 3, 2003
Creator: Baranwal, R. and Burke, M.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Making Sustainable Decisions Using the KONVERGENCE Framework

Description: Hundreds of contaminated facilities and sites must be cleaned up. “Cleanup” includes decommissioning, environmental restoration, and waste management. Cleanup can be complex, expensive, risky, and time-consuming. Decisions are often controversial, can stall or be blocked, and are sometimes re-done - some before implementation, some decades later. Making and keeping decisions with long time horizons involves special difficulties and requires new approaches, including: • New ways (mental model) t… more
Date: February 1, 2003
Creator: Piet, Steven James; Gibson, Patrick Lavern; Joe, Jeffrey Clark; Kerr, Thomas A; Nitschke, Robert Leon & Dakins, Maxine Ellen
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Industry-Government-University Cooperative Research Program for the Development of Structural Materials from Sulfate-Rich FGD Scrubber Sludge

Description: The main aim of our project was to develop technology, which converts flue gas desulfurization (FGD) sulfate-rich scrubber sludge into value-added decorative materials. Specifically, we were to establish technology for fabricating cost effective but marketable materials, like countertops and decorative tiles from the sludge. In addition, we were to explore the feasibility of forming siding material from the sludge. At the end of the project, we were to establish the potential of our products by… more
Date: August 31, 2003
Creator: Malhotra, V. M. & Chugh, Y. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Innovative Concepts Phase I: Inorganic Membranes for CO2/N2 Separation

Description: Silica membranes were prepared using a novel technique of catalyzed-atomic layer deposition of silica within a mesoporous matrix. Pyridine was used to catalyze the silicon chloride attachment to the hydroxylated silica surface at room temperature. This half-reaction was followed by the hydration of the surface with water regenerating surface hydroxyls and completing one reaction cycle. The technique resulted in the self-limited pore size reduction of the mesoporous matrix to pore sizes near 1 n… more
Date: September 23, 2003
Creator: Desisto, William
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydration water dynamics and instigation of protein structuralrelaxation

Description: Until a critical hydration level is reached, proteins do not function. This critical level of hydration is analogous to a similar lack of protein function observed for temperatures below a dynamical temperature range of 180-220K that also is connected to the dynamics of protein surface water. Restoration of some enzymatic activity is observed in partially hydrated protein powders, sometimes corresponding to less than a single hydration layer on the protein surface, which indicates that the dyna… more
Date: September 1, 2003
Creator: Russo, Daniela; Hura, Greg & Head-Gordon, Teresa
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Wireless Luminescence Integrated Sensors (WLIS)

Description: The goal of this project was the development of a family of wireless, single-chip, luminescence-sensing devices to solve a number of difficult distributed measurement problems in areas ranging from environmental monitoring and assessment to high-throughput screening of combinatorial chemistry libraries. These wireless luminescence integrated sensors (WLIS) consist of a microluminometer, wireless data transmitter, and RF power input circuit all realized in a standard integrated circuit (IC) proc… more
Date: November 10, 2003
Creator: Simpson, M. L. & Sayler, G. S. (Univ. Tennessee)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of actinide neutron cross sections

Description: The maintenance of strong scientific expertise is criticalto the U.S. nuclear attribution community. It is particularly importantto train students in actinide chemistry and physics. Neutroncross-section data are vital components to strategies for detectingexplosives and fissile materials, and these measurements requireexpertise in chemical separations, actinide target preparation, nuclearspectroscopy, and analytical chemistry. At the University of California,Berkeley and the Lawrence Berkeley N… more
Date: June 15, 2003
Creator: Firestone, Richard B.; Nitsche, Heino; Leung, Ka-Ngo; Perry, DaleL. & English, Gerald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cryogenic refrigeration requirements for superconducting insertion devices in a light source

Description: This report discusses cryogenic cooling superconducting insertion devices for modern light sources. The introductory part of the report discusses the difference between wiggler and undulators and how the bore temperature may affect the performance of the magnets. The steps one would take to reduce the gap between the cold magnet pole are discussed. One section of the report is devoted to showing how one would calculate the heat that enters the device. Source of heat include, heat entering thro… more
Date: August 15, 2003
Creator: Green, Michael A.; Green, Michael A. & Green, Michael A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Model Documentation for the MiniCAM

Description: The MiniCAM, short for the Mini-Climate Assessment Model, is an integrated assessment model of moderate complexity focused on energy and agriculture sectors. The model produces emissions of greenhouse gases (carbon dioxide, methane and nitrous oxide) and other radiatively important substances such as sulfur dioxide. Through incorporation of the simple climate model MAGICC, the consequences of these emissions for climate change and sea-level rise can be examined. The MiniCAM is designed to be fa… more
Date: July 17, 2003
Creator: Brenkert, Antoinette L.; Smith, Steven J.; Kim, Son H. & Pitcher, Hugh M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Habitat Evaluation Procedures (HEP) Report; Iskuulpa Wildlife Mitigation and Watershed Project, Technical Report 1998-2003.

Description: U.S. Fish and Wildlife Service (USFWS) Habitat Evaluation Procedures (HEP) were used to determine the number of habitat units credited to evaluate lands acquired and leased in Eskuulpa Watershed, a Confederated Tribes of the Umatilla Indian Reservation watershed and wildlife mitigation project. The project is designed to partially credit habitat losses incurred by BPA for the construction of the John Day and McNary hydroelectric facilities on the Columbia River. Upland and riparian forest, upla… more
Date: January 1, 2003
Creator: Quaempts, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Power Systems Development Facility Gasification Test Run TC11

Description: This report discusses Test Campaign TC11 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed gasifier designed to operate as either a combustor or a gasifier in air- or oxygen-blown mode of operation using a particulate control device (PCD). Test r… more
Date: April 30, 2003
Creator: Southern Company Services
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Method for removal of mercury from various gas streams

Description: The invention provides for a method for removing elemental mercury from a fluid, the method comprising irradiating the mercury with light having a wavelength of approximately 254 nm. The method is implemented in situ at various fuel combustion locations such as power plants and municipal incinerators.
Date: June 10, 2003
Creator: Granite, E. J. & Pennline, H. W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

Testing, Modeling, and Monitoring to Enable Simpler, Cheaper, Longer-Lived Surface Caps

Description: Society has and will continue to generate hazardous wastes whose risks must be managed. For exceptionally toxic, long-lived, and feared waste, the solution is deep burial, e.g., deep geological disposal at Yucca Mtn. For some waste, recycle or destruction/treatment is possible. The alternative for other wastes is storage at or near the ground level (in someone’s back yard); most of these storage sites include a surface barrier (cap) to prevent downward water migration. Some of the hazards will … more
Date: February 1, 2003
Creator: Piet, Steven James; Breckenridge, Robert Paul & Burns, Douglas Edward
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Review of the margins for ASME code fatigue design curve - effects of surface roughness and material variability.

Description: The ASME Boiler and Pressure Vessel Code provides rules for the construction of nuclear power plant components. The Code specifies fatigue design curves for structural materials. However, the effects of light water reactor (LWR) coolant environments are not explicitly addressed by the Code design curves. Existing fatigue strain-vs.-life ({var_epsilon}-N) data illustrate potentially significant effects of LWR coolant environments on the fatigue resistance of pressure vessel and piping steels. Th… more
Date: October 3, 2003
Creator: Chopra, O. K.; Shack, W. J. & Technology, Energy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal-neutron capture for A=36-44

Description: The prompt gamma-ray data of thermal- neutron captures fornuclear mass number A=26-35 had been evaluated and published in "ATOMICDATA AND NUCLEAR DATA TABLES, 26, 511 (1981)". Since that time the manyexperimental data of the thermal-neutron captures have been measured andpublished. The update of the evaluated prompt gamma-ray data is verynecessary for use in PGAA of high-resolution analytical prompt gamma-rayspectroscopy. Besides, the evaluation is also very needed in theEvaluated Nuclear Struc… more
Date: January 1, 2003
Creator: Chunmei, Z. & Firestone, R.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Whole-Wafer, Macroscale Inspection Software Method for Semiconductor Wafer Analysis

Description: This report describes the non CRADA-protected results of the project performed between Nova Measuring Systems, Ltd., and the Oak Ridge National Laboratory to test and prototype defect signature analysis method for potential incorporation into an in-situ wafer inspection microscope. ORNL's role in this activity was to collaborate with Nova on the analysis and software side of the effort, wile Nova's role was to build the physical microscope and provide data to ORNL for test and evaluation. The o… more
Date: May 22, 2003
Creator: Tobin, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Caustic-Side Solvent Extraction: Prediction of Cesium Extraction for Actual Wastes and Actual Waste Simulants

Description: This report presents the work that followed the CSSX model development completed in FY2002. The developed cesium and potassium extraction model was based on extraction data obtained from simple aqueous media. It was tested to ensure the validity of the prediction for the cesium extraction from actual waste. Compositions of the actual tank waste were obtained from the Savannah River Site personnel and were used to prepare defined simulants and to predict cesium distribution ratios using the mode… more
Date: February 1, 2003
Creator: Delmau, L. H.; Haverlock, T. J.; Sloop, F. V., (Jr.) & Moyer, B. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Probing Interactions at the Nanoscale: Sensing Protein Molecules

Description: Introduction We have developed a high-frequency electronic biosensor of parallel-plate geometry that is embedded within a microfluidic device. This novel biosensor allows us to perform dielectric spectroscopy on a variety of biological samples—from cells to molecules—in solution. Because it is purely electronic, the sensor allows for rapid characterization with no sample preparation or chemical alteration. In addition, it is capable of probing length scales from millimeters to microns over a fr… more
Date: September 15, 2003
Creator: Sohn, Lydia; Weiss, Ron & Tavazoie, Saeed
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen