2,920 Matching Results

Search Results

Advanced search parameters have been applied.
in creator/contributor: "United States"  
Results: 1 - 24 next
open access

AISI/DOE Technology Roadmap Program: Improved Surface Quality of Exposed Automotive Sheet Steels

Description: Surface quality of sheet steels is an important economic and technical issue for applications such as critical automotive surfaces. This project was therefore initiated to develop a more quantitative methodology for measuring surface imperfections, and to assess their response to forming and painting, particularly with respect to their visibility or invisibility after painting. The objectives were met, and included evaluation of a variety of imperfections present on commercial sheet surfaces or… more
Date: October 10, 2002
Creator: Speer, John G.; Matlock, David K.; Meyers, Noel & Choi, Young-Min
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report - Ferrographic Tracking of Bacterial Transport

Description: The work performed during the past three years has been extremely productive. Ferrographic capture was utilized in analysis of several thousand field samples collected from arrays of multilevel samplers during three intensive field campaigns conducted at two shallow sandy aquifer sites in Oyster, VA. This work has shown resulted in three important conclusions: (1) Ferrographic capture provides unparalleled low quantitation limits for bacterial cell enumeration (Johnson et al., 2000). (2) The hi… more
Date: October 10, 2002
Creator: Johnson, William P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fractured Petroleum Reservoirs

Description: The four chapters that are described in this report cover a variety of subjects that not only give insight into the understanding of multiphase flow in fractured porous media, but they provide also major contribution towards the understanding of flow processes with in-situ phase formation. In the following, a summary of all the chapters will be provided. Chapter I addresses issues related to water injection in water-wet fractured porous media. There are two parts in this chapter. Part I covers … more
Date: June 11, 1999
Creator: Firoozabadi, Abbas
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Anode Materials for Rechargeable Li-Ion Batteries

Description: This is the annual progress report for the Grant DE-FG03-00ER15035. This research is on materials for anodes and cathodes in electrochemical cells. The work is a mix of electrochemical measurements and analysis of the materials by transmission electron microscopy and x-ray diffractometry. Our materials studies on electrode materials divide into electronic studies of the valence at and around Li atoms, and the crystal structures of these materials. We are addressing the basic questions of how th… more
Date: January 12, 2001
Creator: Fultz, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contaminant Organic Complexes: Their Structure and Energetics in Surface Decontamination

Description: The Department of Energy has a goal of decontaminating an estimated 180,000 metric tons of metal wastes in various surplus facilities. Uranium (U) and other radioactive actinides and lanthanides are embedded within the mixed oxide structures of the passivity layers of corroded iron and steel. These toxic metals can be dissolved out of the surface layers by a naturally occurring bacterial siderophore called Desferrioxamine B (DFB). DFB is a trihydroxamate ligand with one amine and three hydroxam… more
Date: July 12, 2005
Creator: Traina, Samuel & Sharma, Shankar
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interbasin Flux Measurements Using Simple Methods

Description: The Vertical Transport and Mixing (VTMX) campaign, sponsored by the US Department of Energy, took place in the Salt Lake Valley during October, 2000. The purpose of VTMX was to further understanding of meteorological processes that govern vertical transport and mixing in complex terrain, particularly during nocturnal stable periods and their morning and evening transition periods. These meteorological processes were the subject of numerous sponsored studies during VTMX. The Salt Lake (Salt Lake… more
Date: January 13, 2005
Creator: Watson, John & Freeman, Daniel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gamma Ray Imaging for Environmental Remediation

Description: This program is the development of germanium strip detectors for environmental remediation. It is a collaboration between the Naval Research Laboratory and Lawrence Berkeley National Lab. The goal is to develop detectors that are simultaneously capable of excellent spectroscopy and imaging of gamma radiation.
Date: November 12, 2004
Creator: Philips, B.F.; Johnson, R.A. Kroeger: J.D. Kurfess: W.N.; Wulf, E.A. & Novikova, E. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improving Enzyme Activity and Broadening Selectivity for Biological Desulfurization and Upgrading of Petroleum Feedstocks

Description: The objective of this project was to develop improved biocatalysts for desulfurization and upgrading of petroleum feedstocks. The goal was to improve the activity and broaden the selectivity of desulfurization enzymes using directed evolution as a tool as well as to explore the impact of ring-opening on biological desulfurization
Date: May 12, 2003
Creator: Borole, Abhijeet P.; Hamilton, Choo Y.; Miller, Karen; Davison, Brian; Grossman, Matthew & Shong, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Charged Particle Microbeam for Targeted and Single Particle Subcellular Irradiation

Description: The development of a charged particle microbeam for single particle, subcellular irradiations at the Massachusetts Institute of Technology Laboratory for Accelerator Beam Applications (MIT LABA) was initiated under this NEER aeard. The Microbeam apparatus makes use of a pre-existing electrostatic accelerator with a horizontal beam tube.
Date: March 12, 2004
Creator: Yanch, Jacquelyn C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water as a Reagent for Soil Remediation

Description: SRI International conducted experiments in a two-year, two-phase process to develop and evaluate hydrothermal extraction technology, also known as hot water extraction (HWE) technology, to separate petroleum-related contaminants and other hazardous pollutants from soil and sediments. In this process, water with added electrolytes (inexpensive and environmentally friendly) is used as the extracting solvent under subcritical conditions (150-300 C). The use of electrolytes allows us to operate rea… more
Date: November 12, 2001
Creator: Jayaweera, Indira S.; Marti-Perez, Montserrat; Diaz-Ferrero, Jordi & Sanjurjo, Angel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Die Casting Part Distortion: Prediction and Attenuation

Description: The goal of this research was to predict the part deformation and residual stresses after ejection from the die and cooling to room temperature. A finite element model was built to achieve this goal and several modeling techniques were investigated throughout this research. Die-casting is a very complex process and the researchers are faced with a large number of hard to solve physical problems when modeling the process. Several assumptions are made in our simulation model. The first significan… more
Date: February 12, 2002
Creator: Dr, R. Allen Miller
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Houdini: Reconfigurabel in-Tank Robot

Description: This report details the development of a reconfigurable in-tank robotic cleanup systems called Houdini{trademark}. Driven by the general need to develop equipment for the removal of radioactive waste from hundreds of DOE waste storage tanks and the specific needs of DOE sites such as Oak Ridge National Laboratory and Fernald, Houdini{trademark} represents one of the possible tools that can be used to mobilize and retrieve this waste material for complete remediation. Houdini{trademark} is a hyd… more
Date: February 12, 1997
Creator: Thompson, Bruce & Slifko, Adam
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

System Design and Performance for the Recent DIII-D Neutral Beam Computer Upgrade

Description: OAK-B135 This operating year marks an upgrade to the computer system charged with control and data acquisition for neutral beam injection system's heating at the DIII-D National Fusion Facility, funded by the US Department of Energy and operated by General Atomics (GA). This upgrade represents the third and latest major revision to a system which has been in service over twenty years. The first control and data acquisition computers were four 16 bit mini computers running a proprietary operatin… more
Date: October 1, 2003
Creator: Phillips, J. C.; Penaflor, B. G.; Pham, N. Q. & Piglowski, D. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Methodology to Integrate Magnetic Resonance and Acoustic Measurements for Reservoir Characterization

Description: The work reported herein represents the third year of development efforts on a methodology to interpret magnetic resonance and acoustic measurements for reservoir characterization. In this last phase of the project we characterize a vuggy carbonate aquifer in the Hillsboro Basin, Palm Beach County, South Florida, using two data sets--the first generated by velocity tomography and the second generated by reflection tomography. First, we integrate optical macroscopic (OM), scanning electron micro… more
Date: September 20, 2002
Creator: Parra, Jorge O.; Hackert, Chris L. & Wilson, Lorna L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure

Description: This report documents work performed in Phase I of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes a number of potential enhancements to the existing natural gas compression infrastructure that have… more
Date: March 2004
Creator: Smalley, Anthony J.; Harris, Ralph E. & Bourn, Gary D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Investigation of Novel Alloy TiC-Ni-Ni3Al for Solid Oxide Fuel Cell Interconnect Applications

Description: Solid oxide fuel cell interconnect materials must meet stringent requirements. Such interconnects must operate at temperatures approaching 800 C while resisting oxidation and reduction, which can occur from the anode and cathode materials and the operating environment. They also must retain their electrical conductivity under these conditions and possess compatible coefficients of thermal expansion as the anode and cathode. Results are presented in this report for fuel cell interconnect candida… more
Date: January 25, 2005
Creator: Koc, Rasit; Swift, Geoffrey & Xie, Hua
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of a Low-Cost Inferential Natural Gas Energy Flow Rate Prototype Retrofit Module

Description: In 1998, Southwest Research Institute{reg_sign} began a multi-year project co-funded by the Gas Research Institute (GRI) and the U.S. Department of Energy. The project goal is to develop a working prototype instrument module for natural gas energy measurement. The module will be used to retrofit a natural gas custody transfer flow meter for energy measurement, at a cost an order of magnitude lower than a gas chromatograph. Development and evaluation of the prototype retrofit natural gas energy … more
Date: March 2004
Creator: Kelner, E.; Owen, T.E.; George, D.L.; Minachi, A.; Nored, M.G. & Schwartz, C.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technologies to Enhance Operation of the Existng Natural Gas Compression Infrastructure

Description: This report documents work performed in the third quarter of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes the following work: first field test; test data analysis.
Date: July 2003
Creator: Smalle, Anthony J.; Harris, Ralph E. & Bourn, Gary D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost-Effective Method for Producing Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen

Description: In continuation of efforts from last quarter, processing parameters, used in the formation of Pd-Cu alloy films, were being optimized in a drum (web) coater system with the goal of producing large-area, contiguous, pinhole-free films for H{sub 2} separation membranes. Since the (pre-treatment) functionality of the surface of the plastic backing material is sub-optimal, they tended to produce films in the drum coater that were either not contiguous (disseminates upon release from the polymer bac… more
Date: July 2004
Creator: Lanning, B. & Arps, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost-Effective Method for Producing Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen

Description: To overcome the issue of pinhole (defect) formation in membrane films over large areas, a process was developed and implemented for producing 6-12 {micro}m-thick, Pd-Cu alloy films on thermally oxidized silicon wafer substrates. The processing parameters on silicon are such that adhesion is poor and as-deposited Pd-Cu alloy films easily release from the oxidized silicon surface. Hydrogen permeation tests were conducted on 9 and 12 {micro}m-thick Pd-Cu alloy films and the hydrogen flux for 9 and… more
Date: October 2004
Creator: Lanning, B. & Arps, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost-Effective Method for Producing Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen

Description: Competed fabrication of an initial series of copper and palladium-copper alloy membranes in the range of 1-8 microns in thickness up to 6 inch x 8 inch in area. Films were produced using both e-beam evaporation (with and without ion assist) and magnetron sputtering from a 60%Pd/40%Cu alloy target. Pure copper and palladium-copper alloy films, with essential no intrinsic stress, were produced on both polystyrene and polyvinyl alcohol substrates. Various processing parameters and techniques were … more
Date: January 2004
Creator: Lanning, B. & Arps, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure

Description: This report documents work performed in the second quarter of the project entitled: ''Technologies to Enhance Operation of the Existing Natural Gas Compression Infrastructure''. The project objective is to develop and substantiate methods for operating integral engine/compressors in gas pipeline service, which reduce fuel consumption, increase capacity, and enhance mechanical integrity. The report describes the following work: preparation and submission of the Technology Status Assessment; form… more
Date: April 2003
Creator: Smalley, Anthony J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Nonlinear Harmonic Sensors for Detection of Mechanical Damage: Final Report

Description: In a joint effort with Tuboscope Pipeline Services of Houston, Texas, Southwest Research Institute (SwRI) adapted its nonlinear harmonic (NLH) sensing technology for use on a new in-line inspection system (smart pig). Nonlinear harmonics, an AC magnetic method for detecting local anomalies of stress and plastic deformation, shows promise of improved characterization of mechanical damage defects such as gouged dents, even though the dents may have re-rounded. The SwRI-Tuboscope project produced … more
Date: March 2004
Creator: Crouch, Alfred E.; Dean, Alan; Torres, Carl & Aron, Jeff
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Realtime Monitoring of Pipelines for Third-Party Contact

Description: Third-party contact with pipelines (typically caused by contact with a digging or drilling device) can result in mechanical damage to the pipe, in addition to coating damage that can initiate corrosion. Because this type of damage often goes unreported and can lead to eventual catastrophic failure of the pipe, a reliable, cost-effective method is needed for monitoring and reporting third-party contact events. The impressed alternating cycle current (IACC) pipeline monitoring method consists of … more
Date: October 2004
Creator: Burkhardt, Gary L. & Crouch, Alfred E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen