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LDRD Final Report - 01-FS-004

Description: This report describes the results from an experimental program to investigate the feasibility of laser produced MeV protons as a diagnostic of electric fields or shock compressed materials. The experimental campaign was very successful, and has led to substantial advances in the characterization and optimization of proton sources from ultra-intense laser-solid interaction. This is a subject of the highest scientific interest [1] and is highly relevant to developing its use as a possible NIF imp… more
Date: January 23, 2002
Creator: Mackinnon, A. J.
Item Type: Refine your search to only Report
open access

Evolving Neural Networks for the Classification of Galaxies

Description: The FIRST survey (Faint Images of the Radio Sky at Twenty-cm) is scheduled to cover 10,000 square degrees of the northern and southern galactic caps. Until recently, astronomers classified radio-emitting galaxies through a visual inspection of FIRST images. Besides being subjective, prone to error and tedious, this manual approach is becoming infeasible: upon completion, FIRST will include almost a million galaxies. This paper describes the application of six methods of evolving neural networks… more
Date: January 23, 2002
Creator: Cantu-Paz, Erick & Kamath, Chandrika
Item Type: Refine your search to only Article
open access

Interpreting Microarray Data to Build Models of Microbial Genetic Regulation Networks

Description: Microarrays and DNA chips are an efficient, high-throughput technology for measuring temporal changes in the expression of message RNA (mRNA) from thousands of genes (often the entire genome of an organism) in a single experiment. A crucial drawback of microarray experiments is that results are inherently qualitative: data are generally neither quantitatively repeatable, nor may microarray spot intensities be calibrated to in vivo mRNA concentrations. Nevertheless, microarrays represent by the … more
Date: January 23, 2002
Creator: Sokhansanj, B.; Garnham, J. B. & Fitch, J. P.
Item Type: Refine your search to only Article
open access

On the Contribution of Gamma Ray Bursts to the Galactic Inventory of Some Intermediate Mass Nuclei

Description: Light curves from a growing number of Gamma Ray Bursts (GRBs) indicate that GRBs copiously produce radioactive Ni moving outward at fractions of the speed of light. We calculate nuclear abundances of elements accompanying the outflowing Ni under the assumption that this Ni originates from a wind blown off of a viscous accretion disk. We also show that GRB's likely contribute appreciably to the galactic inventory of {sup 42}Ca, {sup 45}Sc, {sup 46}Ti, {sup 49}Ti, {sup 63}Cu, and may be an import… more
Date: January 23, 2004
Creator: Pruet, J; Surman, R & McLaughlin, G C
Item Type: Refine your search to only Article
open access

A High-Resolution Global Climate Simulation

Description: A major factor limiting the quality and usefulness of global climate models is the coarse spatial resolution of these models. Global climate models today are typically run at resolutions of {approx}300 km (or even coarser) meaning that the smallest features represented are 300 km across. As Figure 1 shows, this resolution does not allow adequate representation of small or even large topographic features (e.g. the Sierra Nevada mountains). As a result of this and other problems, coarse-resolutio… more
Date: January 23, 2001
Creator: Duffy, P B
Item Type: Refine your search to only Report
open access

Using Data Fusion to Characterize Breast Tissue

Description: New ultrasound data, obtained with a circular experimental scanner, are compared with data obtained with standard X-ray CT. Ultrasound data obtained by scanning fixed breast tissue were used to generate images of sound speed and reflectivity. The ultrasound images exhibit approximately 1 mm resolution and about 20 dB of dynamic range. All data were obtained in a circular geometry. X-ray CT scans were used to generate X-ray images corresponding to the same 'slices' obtained with the ultrasound s… more
Date: January 23, 2002
Creator: Littrup, P.; Duric, N.; Leach, R. R.; Azevedo, S. G.; Candy, J. V.; Moore, T. et al.
Item Type: Refine your search to only Article
open access

Characterizing Tissue with Acoustic Parameters Derived from Ultrasound Data

Description: In contrast to standard reflection ultrasound (US), transmission US holds the promise of more thorough tissue characterization by generating quantitative acoustic parameters. We compare results from a conventional US scanner with data acquired using an experimental circular scanner operating at frequencies of 0.3 - 1.5 MHz. Data were obtained on phantoms and a normal, formalin-fixed, excised breast. Both reflection and transmission-based algorithms were used to generate images of reflectivity, … more
Date: January 23, 2002
Creator: Littrup, P.; Duric, N.; Leach, R. R.; Azevedo, S. G.; Candy, J. V.; Moore, T. et al.
Item Type: Refine your search to only Article
open access

Science& Technology Review March 2004

Description: This month's issue has the following articles: (1) ''Rethinking Atoms for Peace and the Future of Nuclear Technology'' a commentary by Ronald F. Lehman II; (2) ''Rich Legacy from Atoms for Peace'' In 1953, President Eisenhower encouraged world leaders to pursue peaceful uses of nuclear technology. Many of Livermore's contributions in the spirit of this initiative continue to benefit society today. (3) ''Tropopause Height Becomes Another Climate-Change Fingerprint'' Simulations and observational… more
Date: January 23, 2004
Creator: McMahon, D H
Item Type: Refine your search to only Report
open access

Multiscale Surgical Telerobots

Description: A project was undertaken to improve robotic surgical tools for telerobotic minimally invasive surgery. The major objectives were to reduce the size of the tools to permit new surgical procedures in confined spaces such as the heart and to improve control of surgical tools by locating positional sensors and actuators at the end effector rather than external to the patient as is currently the state of the technology. A new compact end-effector with wrist-like flexibility was designed. Positional … more
Date: January 23, 2002
Creator: Miles, R. R.; Seward, K. P.; Benett, W. J.; Tendick, F.; Bentley, L. & Stephan, P. L.
Item Type: Refine your search to only Report
open access

Assessment of K Basin Sludge Volume Expansion Resulting from Uranium Corrosion During Storage

Description: K Basin sludge contains metallic uranium and uranium oxides that will corrode and hydrate during storage. The end-state (final) corrosion products will have a lower particle density and a higher void fraction (or volume fraction of sludge occupied by water) than the starting-state sludge at the beginning of storage. As the particle density and void fraction change, the volume occupied by a given mass of sludge will also change. The purpose of this report is to quantify how the various types and… more
Date: January 23, 2002
Creator: Schmidt, Andrew J. & Delegard, Calvin H.
Item Type: Refine your search to only Report
open access

Classical Least Squares Transformations of Sensor Array Pattern Vectors into Vapor Descriptors

Description: A new method of processing multivariate response data to extract chemical information has been developed. Sensor array response patterns are transformed into a vector containing values for solvation parameter descriptors of the detected vapor's properties. These results can be obtained by using a method similar to classical least squares, and equations have been derived for mass-transducing sensors or volume-transducing sensors. Polymer-coated acoustic wave devices are an example of mass-transd… more
Date: January 23, 2003
Creator: Grate, Jay W.; Wise, Barry M. & Gallagher, Neal B.
Item Type: Refine your search to only Report
open access

Preconditioned MoM Solutions for Complex Planar Arrays

Description: The numerical analysis of large arrays is a complex problem. There are several techniques currently under development in this area. One such technique is the FAIM (Faster Adaptive Integral Method). This method uses a modification of the standard AIM approach which takes into account the reusability properties of matrices that arise from identical array elements. If the array consists of planar conducting bodies, the array elements are meshed using standard subdomain basis functions, such as the… more
Date: January 23, 2004
Creator: Fasenfest, B. J.; Jackson, D.; Champagne, N.; Wilton, D. & Capolino, F.
Item Type: Refine your search to only Article
open access

Engineering Titanium for Improved Biological Response

Description: The human body and its aggressive environment challenge the survival of implanted foreign materials. Formidable biocompatibility issues arise from biological, chemical, electrical, and tribological origins. The body's electrolytic solution provides the first point of contact with any kind of implant, and is responsible for transport, healing, integration, or attack. Therefore, determining how to successfully control the integration of a biomaterial should begin with an analysis of the early int… more
Date: January 23, 2002
Creator: Orme, C.; Bearinger, J.; Dimasi, E. & Gilbert, J.
Item Type: Refine your search to only Report
open access

LDRD Final Report for 01-ERD-100 FLIRT: A Magnetic Field Topology Diagnostic for Spheromaks and Other Self-Organized Magnetically Confined Plasmas

Description: Tangled magnetic field lines are common in laboratory and space plasmas, but determining the geometrical structure of magnetic fields in the presence of plasma is a difficult and still unresolved problem. To address this open question we developed and tested a new technique for measuring the magnetic field-line topology in magnetically confined plasmas. Our field-line tracing diagnostic (FLIRT) uses a high-power, short-pulse laser to launch a burst of energetic ({approx}100 keV) electrons from … more
Date: January 23, 2003
Creator: McLean, H. S.; Chen, H. & Ryutov, D. D.
Item Type: Refine your search to only Report
open access

Emittance Growth Due to Steering Errors for the 8 GeV AP3-P1 Lattice

Description: During 8 GeV antiproton transfers between the Accumulator to the Main Injector, the antiprotons must travel through four separate beam lines, AP3, AP1, P2, and P1. The AP1, P1, and P2 transfer lines are also used for 120 GeV antiproton production so that many of the magnet strings must accommodate a large range of excitation current. This note will quantify the relationship between emittance dilution for 8 GeV antiprotons injected into the Main Injector and variations in the excitation currents… more
Date: January 23, 2001
Creator: McGinnis, Dave
Item Type: Refine your search to only Report
open access

Sustainability for the 7th Generation Initiative (SGI) [Request For Proposals]

Description: A paper about how the United States Environmental Protection Agency accepts applications from federally recognized Tribal governments and Tribal consortia with specific focus on the availability of funds and solicits applications from eligible entities to receive financial assistance through the Sustainability for the 7th Generation Initiative (SGI).
Date: January 23, 2009
Creator: United States. Environmental Protection Agency.
Item Type: Refine your search to only Report
open access

Basal-Subtype and MEK-Pl3K Feedback Signaling Determine Susceptibility of Breast Cancer Cells to MEK Inhibition

Description: Specific inhibitors of MEK have been developed that efficiently inhibit the oncogenic RAF-MEK-ERK pathway. We employed a systems-based approach to identify breast cancer subtypes particularly susceptible to MEK inhibitors and to understand molecular mechanisms conferring resistance to such compounds. Basal-type breast cancer cells were found to be particularly susceptible to growth-inhibition by small-molecule MEK inhibitors. Activation of the PI3 kinase pathway in response to MEK inhibition th… more
Date: January 23, 2009
Creator: Mirzoeva, Olga K.; Das, Debopriya; Heiser, Laura M.; Bhattacharya, Sanchita; Siwak, Doris; Gendelman, Rina et al.
Item Type: Refine your search to only Article
open access

Atmospheric Plasma Deposition of Diamond-like Carbon Coatings

Description: There is great demand for thin functional coatings in the semiconductor, optics, electronics, medical, automotive and aerospace industries [1-13]. As fabricated components become smaller and more complex, the properties of the materials’ surface take on greater importance. Thin coatings play a key role in tailoring surfaces to give them the desired hardness, wear resistance, chemical inertness, and electrical characteristics. Diamond-like carbon (DLC) coatings possess an array of desirable prop… more
Date: January 23, 2008
Creator: Ladwig, Angela
Item Type: Refine your search to only Article
open access

Summary of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in December 2007-November 2008.

Description: This document summarizes the performance of the groundwater restoration systems installed by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Utica, Nebraska, during the fourth year of system operation, from December 1, 2007, until November 30, 2008. Performance in earlier years was reported previously (Argonne 2005, 2006, 2008). In the project at Utica, the CCC/USDA is cooperating with multiple state and federal … more
Date: January 23, 2009
Creator: LaFreniere, L. M.; Sedivy, R. A. & Division, Environmental Science
Item Type: Refine your search to only Report
open access

Final Master Work Plan: Environmental Investigations at Former CCC/Usda Facilities in Kansas, 2002 Revision.

Description: The Commodity Credit Corporation (CCC) of the U.S. Department of Agriculture (USDA) has entered into an interagency agreement with the U.S. Department of Energy (DOE) under which Argonne National Laboratory provides technical assistance for hazardous waste site characterization and remediation for the CCC/USDA. Carbon tetrachloride is the contaminant of primary concern at sites in Kansas where former CCC/USDA grain storage facilities were located. Argonne applies its QuickSite(reg sign) Expedit… more
Date: January 23, 2003
Creator: Burton, J. C.
Item Type: Refine your search to only Report
open access

Optical and Physical Properties from Primary On-Road Vehicle ParticleEmissions And Their Implications for Climate Change

Description: During the summers of 2004 and 2006, extinction and scattering coefficients of particle emissions inside a San Francisco Bay Area roadway tunnel were measured using a combined cavity ring-down and nephelometer instrument. Particle size distributions and humidification were also measured, as well as several gas phase species. Vehicles in the tunnel traveled up a 4% grade at a speed of approximately 60 km h{sup -1}. The traffic situation in the tunnel allows the apportionment of emission factors … more
Date: January 23, 2009
Creator: Strawa, A. W.; Kirchstetter, T. W.; Hallar, A. G.; Ban-Weiss, G. A.; McLaughlin, J. P.; Harley, R. A. et al.
Item Type: Refine your search to only Article
open access

ENHANCED DOE HIGH LEVEL WASTE MELTER THROUGHPUT STUDIES: SRNL GLASS SELECTION STRATEGY

Description: The Department of Energy has authorized a team of glass formulation and processing experts at the Savannah River National Laboratory (SRNL), the Pacific Northwest National Laboratory (PNNL), and the Vitreous State Laboratory (VSL) at Catholic University of America to develop a systematic approach to increase high level waste melter throughput (by increasing waste loading with minimal or positive impacts on melt rate). This task is aimed at proof-of-principle testing and the development of tools… more
Date: January 23, 2008
Creator: Raszewski, F; Tommy Edwards, T & David Peeler, D
Item Type: Refine your search to only Report
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