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Power Systems Development Facility Gasification Test Run TC07

Description: This report discusses Test Campaign TC07 of the Kellogg Brown & Root, Inc. (KBR) Transport Reactor 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 Reactor is an advanced circulating fluidized-bed reactor designed to operate as either a combustor or a gasifier using a particulate control device (PCD). The Transport Reactor was operated as a pressurized… more
Date: April 5, 2002
Creator: Southern Company Services
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Direct to Digital Holography

Description: In this CRADA, Oak Ridge National Laboratory (ORNL) assisted nLine Corporation of Austin, TX in the development of prototype semiconductor wafer inspection tools based on the direct-to-digital holographic (DDH) techniques invented at ORNL. Key components of this work included, testing of DDH for detection of defects in High Aspect Ratio (HAR) structures, development of image processing techniques to enhance detection capabilities through the use of both phase and intensity, and development of m… more
Date: June 15, 2002
Creator: Bingham, P.R. & Tobin, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TREATMENT OF PLUTONIUM- AND URANIUM-CONTAMINATED OIL FROM ROCKY FLATS ENVIRONMENTAL TECHNOLOGY SITE

Description: A removal method for plutonium and uranium has been tested at the Rocky Flats Environmental Technology Site (RFETS). This alternative treatment technology is applicable to U.S. Department of Energy (DOE) organics (mainly used pump oil) contaminated with actinides. In our studies, greater than 70% removal of the actinides was achieved. The technology is based on contacting the oil with a sorbent powder consisting of a surface modified mesoporous material. The SAMMS (Self-Assembled Monolayers on … more
Date: December 5, 2002
Creator: Klasson, K. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proposed Reference Spectral Irradiance Standards to Improve Photovoltaic Concentrating System Design and Performance Evaluation: Preprint

Description: This conference paper describes the American Society for Testing and Materials (ASTM), the International Electrotechnical Commission (IEC), and the International Standards Organization (ISO) standard solar terrestrial spectra (ASTM G-159, IEC-904-3, ISO 9845-1) provide standard spectra for photovoltaic performance applications. Modern terrestrial spectral radiation models and knowledge of atmospheric physics are applied to develop suggested revisions to update the reference spectra. We use a mo… more
Date: May 1, 2002
Creator: Myers, D. R.; Emery, K. E. & Gueymard, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Science& Technology Review December 2002

Description: This issue has the following articles: (1) ''Doing It All: Sustaining Our Working Solutions, Rising to New Challenges''; (2) ''Emerging from the Cold War: Stockpile Stewardship and Beyond''--When the Cold War ended, Lawrence Livermore stepped up to a new national challenge--maintaining the safety and reliability of the U.S. nuclear stockpile without underground testing. (3) ''Machines from Interlocking Molecules''--Fundamental chemistry and physics research will enable scientists to control and… more
Date: October 28, 2002
Creator: Budil, K S
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries Government Documents Department
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Mechanical Design, Analysis, and Testing of a Two-Bladed Wind Turbine Hub

Description: Researchers at the National Wind Technology Center (NWTC) in Golden, Colorado, began performing the Unsteady Aerodynamics Experiment in 1993 to better understand the unsteady aerodynamics and structural responses of horizontal-axis wind turbines. The experiment consists of an extensively instrumented, downwind, three-bladed, 20-kilowatt wind turbine. In May 1995, I received a request from the NWTC to design a two-bladed hub for the experiment. For my thesis, I present the results of the mechani… more
Date: June 1, 2002
Creator: Cotrell, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Post-Lamination Manufacturing Process Automation for Photovoltaic Modules: Final Subcontract Report, April 1998 - April 2002

Description: This report describes the automated systems developed for PV module assembly and testing processes after lamination. These processes are applicable to a broad range of module types, including those made with wafer-based and thin-film solar cells. Survey data and input from module manufacturers gathered during site visits were used to define system capabilities and process specifications. Spire completed mechanical, electrical, and software engineering for four automation systems: a module edge … more
Date: November 1, 2002
Creator: Nowlan, M. J.; Murach, J. M.; Sutherland, S. F.; Miller, D. C.; Moore, S. B. & Hogan, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Strong Earthquake Motion Estimates for Three Sites on the U.C. San Diego Campus

Description: The approach of the Campus Earthquake Program (CEP) is to combine the substantial expertise that exists within the UC system in geology, seismology, and geotechnical engineering, to estimate the earthquake strong motion exposure of UC facilities. These estimates draw upon recent advances in hazard assessment, seismic wave propagation modeling in rocks and soils, and dynamic soil testing. The UC campuses currently chosen for application of our integrated methodology are Riverside, San Diego, and… more
Date: May 7, 2002
Creator: Day, S.; Doroudian, M.; Elgamal, A.; Gonzales, S.; Heuze, F.; Lai, T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

On-Line Microbial Whole Effluent Toxicity Monitoring for Industrial Wastewater

Description: In this study a respirometer is tested for its ability to act as an early upset warning device and whole effluent toxicity monitor for industrial discharge. Industrial discharge water quality is commonly evaluated by comparing measured chemical concentrations to target values or regulatory limits established by governmental agencies. Unless the regulatory values are based upon empirical data, the actual effect of the discharge on aquatic systems is unknown. At the same time assessing the enviro… more
Date: September 17, 2002
Creator: Mathews, S; Hoppes, W; Mascetti, M & Campbell, C G
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

National Ignition Facility Configuration Management Plan

Description: This Configuration Management Plan (CMP) describes the technical and administrative management process for controlling the National Ignition Facility (NIF) Project configuration. The complexity of the NIF Project (i.e., participation by multiple national laboratories and subcontractors involved in the development, fabrication, installation, and testing of NIF hardware and software, as well as construction and testing of Project facilities) requires implementation of the comprehensive configurat… more
Date: October 1, 2002
Creator: Cabral, S. G. & Moore, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Certification Testing and Demonstration of Insulated Pressure Vessels for Vehicular Hydrogen Storage

Description: Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen or ambient-temperature compressed hydrogen. This flexibility results in multiple advantages with respect to compressed hydrogen tanks or low-pressure liquid hydrogen tanks. Our work is directed at verifying that commercially available aluminum-lined, fiber-wrapped pressure vessels can be safely used to store liquid hydrogen. A series of tests have been conducted, and the results indicate th… more
Date: May 22, 2002
Creator: Aceves, S. M.; Martinez-Frias, J. & Espinosa-Loza, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A 2-Liter, 2000 MPa Air Source for the Radiatively Driven Hypersonic Wind Tunnel

Description: The A2 LITE is a 2 liter, 2000 MPa, 750 K ultra-high pressure (UHP) vessel used to demonstrate UHP technology and to provide an air flow for wind tunnel nozzle development. It is the largest volume UHP vessel in the world. The design is based on a 100:1 pressure intensification using a hydraulic ram as a low pressure driver and a three-layer compound cylinder UHP section. Active control of the 900 mm piston stroke in the 63.5 mm bore permits pressure-time profiles ranging from static to constan… more
Date: May 30, 2002
Creator: Costantino, M & Lofftus, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Time-Resolved Emittance Characterization of an Induction Linac Beam using Optical Transition Radiation

Description: An induction linac is used by Lawrence Livermore National Laboratory to perform radiographic testing at the Flash X-ray Radiography facility. Emittance characterization is important since x-ray spot size impacts the resolution of shadow-graphs. Due to the long pulse length, high current, and beam energy, emittance measurement using Optical Transition Radiation is an attractive alternative for reasons that will be described in the text. The utility of OTR-based emittance measurement has been wel… more
Date: November 5, 2002
Creator: Le Sage, G P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fast Ignition: Physics Progress in the US Fusion Energy Program and Prospects for Achieving Ignition.

Description: Fast ignition (FI) has significant potential advantages for inertial fusion energy and it is therefore being studied as an exploratory concept in the US fusion energy program. FI is based on short pulse isochoric heating of pre-compressed DT by intense beams of laser accelerated MeV electrons or protons. Recent experimental progress in the study of these two heating processes is discussed. The goal is to benchmark new models in order to predict accurately the requirements for full-scale fast ig… more
Date: October 16, 2002
Creator: Key, M. H.; Andersen, C.; Cowan, T.; Fisch, N.; Freeman, R.; Hatchett, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effects of Introduced Materials in the Drift Scale Test

Description: Water samples previously acquired from superheated (>140 C) zones within hydrological test boreholes of the Drift Scale Test (DST) show relatively high fluoride concentrations (5-66 ppm) and low pH (3.1-3.5) values. In these high temperature regions of the rock, water is present superheated vapor only--liquid water for sampling purposes is obtained during the sampling process by cooling. Based on data collected to date, it is evident that the source of the fluoride and low pH is from introdu… more
Date: January 11, 2002
Creator: DeLoach, L & Jones, RL
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Polycrystalline Thin Film Photovoltaics: Research, Development, and Technologies: Preprint

Description: II-VI binary thin-film solar cells based on cadmium telluride (CdTe) and I-III-VI ternary thin-film solar cells based on copper indium diselenide (CIS) and related materials have been the subject of intense research and development in the past few years. Substantial progress has been made thus far in the area of materials research, device fabrication, and technology development, and numerous applications based on CdTe and CIS have been deployed worldwide. World record efficiency of 16.5% has be… more
Date: May 1, 2002
Creator: Ullal, H. S.; Zweibel, K. & von Roedern, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Radiochemistry of Near-Field Water Samples at the Nevada Test Site Applied to the Definition of a Hydrologic Source Term

Description: Effective management of available groundwater resources and strategies for remediation of water impacted by past nuclear testing practices depend on knowledge about the migration of radionuclides in groundwater away from the sites of the explosions. A primary concern is to assess the relative mobilities of the different radionuclide species found near sites of underground nuclear tests and to determine the concentration, extent, and speed of this movement. Ultimately the long term transport beh… more
Date: July 5, 2002
Creator: Smith, D K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Correlations of Polyimides and Blended Polyimides for High Temperature Gas Separations

Description: High performance polymers are of interest for high temperature gas separations, especially for the sequestration of carbon dioxide. A new family of high performance imide polymers has been identified as a successful membrane capture material. VTEC polyimides possess desired thermal properties (up to 500 °C) along with being robust and flexible even after multiple thermal cycles (up to 400 °C). Polyimides (PI) are excellent materials for high selectivity for smaller kinetic diameter gases such a… more
Date: March 1, 2002
Creator: Klaehn, John R.; Orme, Christopher J.; Luther, Thomas A.; Peterson, Eric S. & Urban-Klaehn, Jagoda M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nano-compression of carbon micro-balloons on a xp-nanoindenter

Description: Microballoons are thin hollow spheres that are bonded together with resins to form 'syntactic foam'. These foams exhibit very high specific compressive strength. Mechanical properties of the microballoons are integral to the mechanical properties of the syntactic foams and will also be useful in modeling of the system. This paper will present nano-compression results obtained for individual carbon microballoons (CMBs) tested between 5 and 50 mN on a XP nano-indentation device (MTS) customized w… more
Date: January 1, 2002
Creator: Gouadec, G.; Carlisle, K. (Kipp B.); Chawla, Krishan Kumar,; Koopman, M. (Mark) & Gladysz, G. M. (Gary M.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Plasma-sprayed ceramic coatings for protection against molten metal.

Description: Molten metal environments pose a special demand on materials due to the high temperature corrosion effects and thermal expansion mismatch induced stress effects. A solution that has been successfully employed is the use of a base material for the mechanical strength and a coating material for the chemical compatibility with the molten metal. The work described here used such an approach coating tungsten rods with aluminum oxide, yttria-stabilized zirconia, yttrium oxide, and erbium oxide deposi… more
Date: January 1, 2002
Creator: Hollis, K. J. (Kendall J.); Peters, M. I. (Maria I.) & Bartram, B. D. (Brian D.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Use of predictive performance modeling during large-scale system installation

Description: We concern ourselves in this paper with one important application of predictive performance modeling - to validate the measured performance during system installation. In general, models can provide performance and scalability expectations of a system for a given workload. The application characteristics of the ASCI workload utilized in this paper is SAGE, a multidimensional, 3D, multi-material hydrodynamics code with adaptive mesh refinement. We review the salient features of an analytical mod… more
Date: January 1, 2002
Creator: Kerbyson, D. J. (Darren J.); Hoisie, A. (Adolfy) & Wasserman, H. J. (Harvey J.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Safe testing nuclear rockets economically

Description: Several studies over the past few decades have recognized the need for advanced propulsion to explore the solar system. As early as the 1960s, Werner Von Braun and others recognized the need for a nuclear rocket for sending humans to Mars. The great distances, the intense radiation levels, and the physiological response to zero-gravity all supported the concept of using a nuclear rocket to decrease mission time. These same needs have been recognized in later studies, especially in the Space Exp… more
Date: January 1, 2002
Creator: Howe, Steven D.; Travis, Bryan J. & Zerkle, David K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Modeling eddy current analysis data to determine depth of weld penetration

Description: The Applied Engineering Technology Croup in the Engineering Sciences and Applications Division at Los Alamos National Laboratory is currently providing the design, engineering, assembly, and testing of an eddy current instrument for weld inspection. This instrument is designed to provide an in situ weld depth measurement of nuclear weapons primary components during fabrication. The goal of this effort is to improve the accuracy and reliability of the measurement of the weld joint depth and prov… more
Date: January 1, 2002
Creator: Hench, Karen W.; Christensen, Wynn; Gallant, Danny A.; Hinde, Ralph F., Jr.; Lopez, Aaron A.; Martin, Chuck et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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