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open access

Declaration Patent for the Invention of Device for Pulling Halyard

Description: The device for the halyard stretching consists of a frame with coupler and clamping rollers mounted in pairs on it, the drive of the rotation of the coupler rollers and the clamping device with a clamping spring. The clamping device is remarkable that the clamping rollers are mounted in a separate movable bracket, which is connected with the frame with the help of a hinge. Between the frame and the movable bracket a releasing spring is inserted. The clamping device is equipped with a movable ho… more
Date: January 31, 2002
Creator: Anuprienko, G. E.; Karpachov, Y. A.; Rowland, M. S.; Savenko, Y. M. & Smith, C. F.
Partner: UNT Libraries Government Documents Department
open access

A Laboratory Approach Relating Complex Resistivity Observations to Flow and Transport in Saturated and Unsaturated Hydrologic Regimes

Description: Subsurface imaging technology, such as electric resistance tomography (ERT), is rapidly improving as a means for characterizing some soil properties of the near-surface hydrologic regime. While this information can be potentially useful in developing hydrologic models of the subsurface that are required for contaminant transport investigations, an image alone of the subsurface soil regime gives little or no information about how the site will respond to groundwater flow or contaminant transport… more
Date: January 31, 2002
Creator: Martins, S A; Daily, W D & Ramirez, A L
Partner: UNT Libraries Government Documents Department
open access

Adaptive Tracking of Atmospheric Releases

Description: When dangerous chemical or biological releases occur in the atmosphere, emergency responders and decision makers must assess exposure rates to the affected population, establish evacuation routes, and allocate medical resources We have been working to improve the scientific basis for making such decisions. We believe that future rapid response teams, from LLNI, and other centers of expertise, will use a variety of atmospheric sensors and atmospheric computer models to predict and characterize t… more
Date: January 31, 2002
Creator: Larson, D & Calhoun, R
Partner: UNT Libraries Government Documents Department
open access

Statistical Analyses of AY-101 Ultrasonic Measurements of Wall Thickness

Description: Tank AY-101 wall thicknesses have been measured using ultrasonic (UT) images. Interest is in using the available data to estimate a worst-case minimum wall thickness for regions of the tank that remain unexamined with the UT approach. Each UT image can provide the wall thickness at a very large number of pixels, but only the minimum value for each image is used in this work. Since the data arise in this manner, one of several candidate statistical extreme value distributions should successfully… more
Date: October 31, 2002
Creator: Weier, Dennis R.
Partner: UNT Libraries Government Documents Department
open access

Operations and Maintenance Best Practices--A Guide to Achieving Operational Efficiency

Description: This guide is designed to serve as a source for O&M management and technical staff. It does not try to represent the universe of O&M related material. Rather, it attempts to: (1) provide needed background information on why O&M is important and the potential for savings from good O&M, (2) define the major O&M program types and provide guidance on the structure of a good O&M program, (3) provide information on state-of-the-art maintenance technologies and procedures for k… more
Date: December 31, 2002
Creator: Sullivan, Gregory P.; Pugh, Ray & Melendez, Aldo P.
Partner: UNT Libraries Government Documents Department
open access

Ultrasonic Examination of Double-Shell Tank 241-AN-105 Examination Completed September 2002

Description: COGEMA Engineering Corporation (COGEMA), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic examination of selected portions of Double-Shell Tank 241-AN-105. The purpose of this examination was to provide information that could be used to evaluate the integrity of the wall of the primary tank. The requirements for the ultrasonic examination of Tank 241-AN-105 were to detect, characterize (identify, size, and locate), and record measurements made of any wall t… more
Date: December 31, 2002
Creator: Pardini, Allan F. & Posakony, Gerald J.
Partner: UNT Libraries Government Documents Department
open access

Spheromak Impedance and Current Amplification

Description: It is shown that high current amplification can be achieved only by injecting helicity on the timescale for reconnection, {tau}{sub REC}, which determines the effective impedance of the spheromak. An approximate equation for current amplification is: dI{sub TOR}{sup 2}/dt {approx} I{sup 2}/{tau}{sub REC} - I{sub TOR}{sup 2}/{tau}{sub closed} where I is the gun current, I{sub TOR} is the spheromak toroidal current and {tau}{sub CLOSED} is the ohmic decay time of the spheromak. Achieving high cur… more
Date: January 31, 2002
Creator: Fowler, T K; Hua, D D & Stallard, B W
Partner: UNT Libraries Government Documents Department
open access

Probing Interactions in Complex Molecular Systems through Ordered Assembly

Description: Emerging from the machinery of epitaxial science and chemical synthesis, is a growing emphasis on development of self-organized systems of complex molecular species. The nature of self-organization in these systems spans the continuum from simple crystallization of large molecules such as dendrimers and proteins, to assembly into large organized networks of nanometer-scale structures such as quantum dots or nanoparticles. In truth, self-organization in complex molecular systems has always been … more
Date: January 31, 2002
Creator: De Yoreo, J. J.; Bartelt, M. C.; Orme, C. A.; Villacampa, A.; Weeks, B. L. & Miller, A. E.
Partner: UNT Libraries Government Documents Department
open access

HEU Transparency Implementation Program and its Radiation Safety Program

Description: In February 1993, the Governments of the United States (U.S.) and the Russian Federation (R.F.) signed a bilateral Agreement for the U.S. purchase of low enriched uranium (LEU) derived from 500 metric tons (MT) of highly enriched uranium (HEU) resulting from the dismantlement of Russian nuclear weapons. The HEU Purchase Agreement serves important national security and nonproliferation policy imperatives for both countries since its implementation reduces the quantity of surplus Russian HEU that… more
Date: January 31, 2002
Creator: Radev, R
Partner: UNT Libraries Government Documents Department
open access

Exchange-Coupling in Magnetic Nanoparticles to Enhance Magnetostrictive Properties

Description: Spark erosion is a versatile and economical method for producing particles of virtually any type of material that has a nominal conductivity: particles can be prepared in sizes ranging from a few nm to tens of {micro}m. The purpose of this feasibility study was to demonstrate the capability of making spherical particles of specific magnetic materials. We chose (Tb Dy)Fe{sub 2} (Terfenol-D) due to its potential use as the magnetostrictive component in magneto-elastomer composites. We also chose … more
Date: January 31, 2002
Creator: Radousky, H.; McElfresh, M.; Berkowitz, A. & Carman, G. P.
Partner: UNT Libraries Government Documents Department
open access

Calculated Thermodynamic Functions for Gas Phase Uranium, Neptunium, Plutonium, and Americium Oxides (AnO3), Oxyhydroxides (AnO2(OH)2), Oxychlorides (AnO2Cl2), and Oxyfluorides (AnO2F2)

Description: Based on known and estimated molecular constants, the thermodynamic functions, C{sub p}, S{sup o}, H{sup o}-H{sup o}(298), and -(G{sup o} - H{sup o}(298))/T, have been calculated and tabulated for actinide vapors species of the formulas AnO{sub 3}(g), AnO{sub 2}(OH){sub 2}(g), AnO{sub 2}Cl{sub 2}(g), and AnO{sub 2}F{sub 2}(g) where An = U, Np, Pu, and Am. A method to calculate the thermodynamic functions for the mixed species, AnO{sub 2}ClOH(g), AnO{sub 2}FOH(g), and AnO{sub 2}FCl(g), is also g… more
Date: October 31, 2002
Creator: Ebbinghaus, B. B.
Partner: UNT Libraries Government Documents Department
open access

Final Report for LDRD Project ''A New Era of Research in Aerosol/Cloud/Climate Interactions at LLNL''

Description: Observations of global temperature records seem to show less warming than predictions of global warming brought on by increasing concentrations of CO{sub 2} and other greenhouse gases. One of the reasonable explanations for this apparent inconsistency is that the increasing concentrations of anthropogenic aerosols may be partially counteracting the effects of greenhouse gases. Aerosols can scatter or absorb the solar radiation, directly change the planetary albedo. Aerosols, unlike CO{sub 2}, m… more
Date: January 31, 2002
Creator: Chuang, C.; Bergman, D. J.; Dignon, J. E. & Connell, P. S.
Partner: UNT Libraries Government Documents Department
open access

Top Level User Specifications for Mask Inspection Microscope

Description: This document compiles top-level user specifications for an EUV microscope for characterizing EUVL mask defects. Two broad categories of application are considered: (1) emulation of the imaging characteristics of a stepper for printability analysis (AIM mode); and (2) high-resolution imaging for obtaining a more detailed characterization of defects or mask features. It is generally assumed that the mask defects that are to be characterized have been located by a previous inspection procedure an… more
Date: January 31, 2002
Creator: Barty, A. & Taylor, J. S.
Partner: UNT Libraries Government Documents Department
open access

Building a LLNL Capability in Radioactive Ion Beam Experiments

Description: The purpose of this LDRD was to establish a program at LLNL in radioactive ion beam (RIB) experiments that would use these experiments to address a wide range physics issues in both stellar nucleosynthesis and stockpile stewardship radiochemistry. The LDRD was funded for a total of two years (fiscal years 2000 and 2001) and transferred to the Physical Data Research Program in fiscal year 2002. Reactions on unstable nuclei and isomeric states play a central role in the formation of elements in b… more
Date: January 31, 2002
Creator: Bernstein, L. A.; Becker, J. A.; Garrett, P. E.; Younes, W. & Schiller, A.
Partner: UNT Libraries Government Documents Department
open access

Final Report BW Sample Collection& Preparation Device

Description: The objective of this project was to develop the technique needed to prepare a field collected sample for laboratory analysis and build a portable integrated biological detection instrument with new miniaturized and automated sample purification capabilities. The device will prepare bacterial spores, bacterial vegetative cells, and viral particles for PCR amplification.
Date: January 31, 2002
Creator: Koopman, R P; Belgrader, P; Meyer, G; Benett, W J; Richards, J B; Hadley, D R et al.
Partner: UNT Libraries Government Documents Department
open access

FY02 CBNP Annual Report Input: Bioinformatics Support for CBNP Research and Deployments

Description: The events of FY01 dynamically reprogrammed the objectives of the CBNP bioinformatics support team, to meet rapidly-changing Homeland Defense needs and requests from other agencies for assistance: Use computational techniques to determine potential unique DNA signature candidates for microbial and viral pathogens of interest to CBNP researcher and to our collaborating partner agencies such as the Centers for Disease Control and Prevention (CDC), U.S. Department of Agriculture (USDA), Department… more
Date: October 31, 2002
Creator: Slezak, T & Wolinsky, M
Partner: UNT Libraries Government Documents Department
open access

Analysis of Radionuclide Migration Through a 200-m Vadose Zone Following a 16-Year Infiltration Event

Description: The CAMBRIC nuclear test was conducted beneath Frenchman Flat at the Nevada Test Site on May 14, 1965. The nuclear device was emplaced in heterogeneous alluvium, approximately 70 m beneath the ambient water table, which is itself 220 m beneath the ground surface. Approximately 10 years later, groundwater adjacent to the test was pumped steadily for 16 years to elicit information on radionuclide migration in the saturated zone. The pumping well effluent--containing mostly soluble radionuclides s… more
Date: January 31, 2002
Creator: Tompson, A. F. B.; Smith, D. K. & Hudson, G. B.
Partner: UNT Libraries Government Documents Department
open access

Distributed Energy Resources, Power Quality and Reliability - Background

Description: Power quality [PQ] and power reliability [PR] gained importance in the industrialized world as the pace of installation of sensitive appliances and other electrical loads by utility customers accelerated, beginning in the mid 1980s. Utility-grid-connected customers rapidly discovered that this equipment was increasingly sensitive to various abnormalities in the electricity supply.
Date: January 31, 2002
Creator: Schienbein, Lawrence A. & DeSteese, John G.
Partner: UNT Libraries Government Documents Department
open access

Modeling Coal Matrix Shrinkage and Differential Swelling with CO2 Injection for Enhanced Coalbed Methane Recovery and Carbon Sequestration Applications

Description: Matrix shrinkage and swelling can cause profound changes in porosity and permeability of coalbed methane reservoirs during depletion or when under CO{sub 2} injection processes, with significant implication for primary or enhanced methane recovery. Two models that are used to describe these effects are discussed. The first was developed by Advanced Resources International (ARI) and published in 1990 by Sawyer, et al. The second model was published by Palmer and Mansoori in 1996. This paper show… more
Date: March 31, 2002
Creator: Pekot, L. J. & Reeves, S. R.
Partner: UNT Libraries Government Documents Department
open access

Engineering Development of Slurry Bubble Column Reactor (SBCR) Technology

Description: This report summarizes the procedures used and results obtained in determining radial gas holdup profiles, via gamma ray scanning, and in assessing liquid and gas mixing parameters, via radioactive liquid and gas tracers, during Fischer Tropsch synthesis. The objectives of the study were (i) to develop a procedure for detection of gas holdup radial profiles in operating reactors and (ii) to test the ability of the developed, previously described, engineering models to predict the observed liqui… more
Date: July 31, 2002
Creator: Gupta, Puneet
Partner: UNT Libraries Government Documents Department
open access

In-Situ Sampling and Characterization of Naturally Occurring Marine Methane Hydrate Using the D/V JOIDES Resolution

Description: The primary accomplishments of the JOI Cooperative Agreement with DOE/NETL in this quarter were (1) the preliminary postcruise evaluation of the tools and measurement systems that were used during ODP Leg 204 to study hydrate deposits on Hydrate Ridge, offshore Oregon from July through September 2002; and (2) the preliminary study of the hydrate-bearing core samples preserved in pressure vessels and in liquid nitrogen cryofreezers, which are now stored at the ODP Gulf Coast Repository in Colleg… more
Date: December 31, 2002
Creator: Rack, Frank; Storms, Michael; Schroeder, Derryl; Dugan, Brandon; Schultheiss, Peter & Party, ODP Leg 204 Shipboard Scientific
Partner: UNT Libraries Government Documents Department
open access

Synthesis, Characterization and Testing of Novel Anode and Cathode Materials for Li-Ion Batteries

Description: During this program we have synthesized and characterized several novel cathode and anode materials for application in Li-ion batteries. Novel synthesis routes like chemical doping, electroless deposition and sol-gel method have been used and techniques like impedance, cyclic voltammetry and charge-discharge cycling have been used to characterize these materials. Mathematical models have also been developed to fit the experimental result, thus helping in understanding the mechanisms of these ma… more
Date: October 31, 2002
Creator: White, Ralph E. & Popov, Branko N.
Partner: UNT Libraries Government Documents Department
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