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Reconfigurable mobile manipulation for accident response

Description: The need for a telerobotic vehicle with hazard sensing and integral manipulation capabilities has been identified for use in transportation accidents where nuclear weapons are involved. The Accident Response Mobile Manipulation System (ARMMS) platform has been developed to provide remote dexterous manipulation and hazard sensing for the Accident Response Group (ARG) at Sandia National Laboratories. The ARMMS' mobility platform is a military HMMWV [High Mobility Multipurpose Wheeled Vehicle] tha… more
Date: June 6, 2000
Creator: ANDERSON,ROBERT J.; MORSE,WILLIAM D.; SHIREY,DAVID L.; CDEBACA,DANIEL M.; HOFFMAN JR.,JOHN P. & LUCY,WILLIAM E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Combined approach to the inverse protein folding problem. Final report

Description: The main scientific contribution of the project ''Combined approach to the inverse protein folding problem'' submitted in 1996 and funded by the Department of Energy in 1997 is the formulation and development of the idea of the multilink recognition method for identification of functional and structural homologues of newly discovered genes. This idea became very popular after they first announced it and used it in prediction of the threading targets for the CASP2 competition (Critical Assessmen… more
Date: June 2000
Creator: Abagyan, Ruben A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Migration and Entrapment of DNAPLs in Physically and Chemically Heterogeneous Porous Media

Description: This document summarizes EMSP funded research designed to improve our understanding of and ability to simulate the influence of subsurface chemical heterogeneities on DNAPL flow and entrapment in the saturated zone. Specific project objectives include: (i) the quantification of DNAPL interfacial and hydraulic properties; (ii) development and assessment of constitutive hydraulic property and continuum based multiphase flow models; (iii) exploration of DNAPL migration and entrapment in heterogene… more
Date: June 2000
Creator: Abriola, Linda M. & Demond, Avery H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low Temperature and High Pressure Evaluation of Insulated Pressure Vessels for Cryogenic Hydrogen Storage

Description: Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen (LH{sub 2}) or ambient-temperature compressed hydrogen (CH{sub 2}). Insulated pressure vessels offer the advantages of liquid hydrogen tanks (low weight and volume), with reduced disadvantages (fuel flexibility, lower energy requirement for hydrogen liquefaction and reduced evaporative losses). The work described here is directed at verifying that commercially available pressure vessels can… more
Date: June 25, 2000
Creator: Aceves, S.; Martinez-Frias, J. & Garcia-Villazana, O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Leptoquark searches at the Tevatron

Description: The authors report on searches for leptoquarks using approximately 100 pb {sup -1} of data collected by CDF and DO during Run I at the Tevatron. They also present searches for resonantly-produced leptoquarks that arise in technicolor models. Prospects for future leptoquark searches using Run II data are also discussed.
Date: June 23, 2000
Creator: Acosta, Darin E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Verification survey of the hot cell facility site, General Atomics, San Diego, California

Description: From 1958, General Atomics maintain a hot cell facility in support of government-funded research into reactor fuels. As the use of the facility declined, General Atomics entered into an agreement with DOE to dismantle the facility and decontaminate and decommission (D&D) the site so that it could made available for unrestricted use. The Environmental Survey and Site Assessment Program (ESSAP) was requested to verify the final radiological status of the D&D effort. This is the report of … more
Date: June 30, 2000
Creator: Adams, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Neutron structure function and A=3 mirror nuclei

Description: The authors demonstrate that the free neutron structure function can be extracted in deep-inelastic scattering from A=3 mirror nuclei, with nuclear effects canceling to within 2% for x {approx_lt} 0.85.
Date: June 1, 2000
Creator: Afnan, I. R.; Bissey, F.; Gomez, J.; Katramatou, A. T.; Melnitchouk, W.; Petratos, G. G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Contaminant-Organic Complexes, Their Structure and Energetics in Surface Decontamination Processes

Description: There are many compounds that are naturally occurring biodegradable organic chelates (siderophores) and appear to be more effective at oxide dissolution and actinide complexation than ethylenediaminetetraacetic acid (EDTA) or other organic acids currently used in decontamination processes. These chelates bind hard acids [Fe(III) and actinides(IV)] with extraordinarily high affinities. For example, the binding constant for the siderophore enterobactin with iron is about 1050, and its binding con… more
Date: June 2000
Creator: Ainsworth, Calvin C.; Hay, Benjamin P.; Traina, Samuel J. & Myneni, Satish C. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of carbon coating on scuffing performance in diesel fuels

Description: Low-sulfur and low-aromatic diesel fuels are being introduced in order to reduce various types of emissions in diesel engines to levels in compliance with current and impending US federal regulations. The low lubricity of these fuels, however, poses major reliability and durability problems for fuel injection components that depend on diesel fuel for their lubrication. In the present study, the authors evaluated the scuff resistance of surfaces in regular diesel fuel containing 500 ppm sulfur a… more
Date: June 29, 2000
Creator: Ajayi, O. O.; Alzoubi, M. F.; Erdemir, A. & Fenske, G. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The dynamics of combustion fronts in porous media

Description: In this report, a method for solving this problem by treating the reaction region as a place of discontinuities in the appropriate variables, which include, for example, fluxes of heat and mass was proposed. Using a rigorous perturbation approach, similar to that used in the propagation of flames and smoldering combustion, appropriate jump conditions that relate the change in these variables across the front was derived. These conditions account for the kinetics of the reaction between the oxid… more
Date: June 15, 2000
Creator: Akkutlu, I. Yucel & Yortsos, Yannis C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Molecular dynamic simulations of the lithium coordination environment in phosphate glasses

Description: A molecular dynamics (MD) study of the lithium ultraphosphate glass series, xLi{sub 2}O{center_dot}(1{minus}x)P{sub 2}O{sub 5} (0 {le} x < 0.5) was used to investigate the changes in the Li environment with increasing modifier concentration. The results from the MD simulations indicate that no major structural variations in the Li coordination environment are observed. Changes in the type of oxygen coordinated to the modifier are observed and correlate with the T{sub g} minimum. Additionally… more
Date: June 7, 2000
Creator: Alam, Todd M.; Liang, Jianjie & Cygan, Randall T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Explicit SO(10) supersymmetric grand unified model

Description: A complete set of Higgs and matter superfields is introduced with well-defined SO(10) properties and U(1) x Z{sub 2} x Z{sub 2} family charges from which the Higgs and Yukawa superpotentials are constructed. The Higgs fields solve the doublet-triplet splitting problem, while the structures of the four Dirac fermion mass matrices obtained involve just six effective Yukawa operators. The right-handed Majorana matrix arises from one Higgs field coupling to several pairs of superheavy conjugate neu… more
Date: June 23, 2000
Creator: Albright, Carl H. & Barr, S. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Oral History Interview with Billy Drawe, June 13, 2000

Description: Interview with dairyman and Marine Corps veteran Billy Drawe. The interview includes Drawe's personal experiences about the Pacific Theater during World War II, enlistment and boot camp, tank training, invading Guam, coming under Japanese mortar fire on Guam, invading Iwo Jima, hauling supplies ashore to the infantry on Iwo Jima, and returning to the states for training in the V-12 Program.
Date: June 13, 2000
Creator: Alexander, William J. & Drawe, Billy
Item Type: Refine your search to only Book
Partner: UNT Oral History Program
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Oral History Interview with Robert Weinberg, June 14, 2000

Description: Interview with Robert Weinberg, Army Air Forces veteran (776th Bomb Squadron, 464th Bomb Group, 15th Air Force), concerning his experiences as a B-24 navigator; also his experiences as a prisoner-of-war of the Germans in the European Theater during World War II. Enlistment in the Aviation Cadet Program, 1942; Cadet Classification Center, San Antonio, Texas, 1943; basic training, Lackland Field, San Antonio, 1943; pre-flight training, Ellington Field, Houston, Texas, 1943; navigation school, Hon… more
Date: June 14, 2000
Creator: Alexander, William J. & Weinberg, Robert
Item Type: Refine your search to only Book
Partner: UNT Oral History Program
open access

Review of ion beam therapy: Present and Future

Description: First therapy efforts at the Bevalac using neon ions took place in the 70's and 80's. Promising results led to construction of HIMAC in Chiba Japan, and more recently to therapy trials at GSI. Both these facilities are now treating patients with carbon beams. Advances in both accelerator technology and beam delivery have taken place at these two centers. Plans are well along for new facilities in Europe and Japan.
Date: June 1, 2000
Creator: Alonso, Jose R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Hydrologic-Geophysical Method for Characterizing Flow and Transport Processes within the Vadose Zone

Description: The objective of this study is to analyze flow within the vadose zone during a mid-scale hydrologic test to and to characterize transport processes in-situ. This project will employ numerical and experimental tools that have been developed under a previously funded EMSP proposal (project number 55332). Geophysical imaging techniques will be employed to image the changes produced by the transport experiments in-situ as they occur. Results will help to better understand flow and transport modes w… more
Date: June 2000
Creator: Alumbaugh, David L. & Brainard, James R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Hybrid Hydrologic-Geophysical Inverse Technique for the Assessment and Monitoring of Leachates in the Vadose Zone

Description: The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic- Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeologic heterogeneity and the extent of contamination by combining information from 3D electric resistivity tomography (ERT) and/or 2D cross-borehole ground penetrating radar (XBGPR) surveys, statistical informa… more
Date: June 2000
Creator: Alumbaugh, David L.; Yeh, Jim; LaBrecque, Doug & Glass, Robert J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis, tuning and comparison of two general sparse solvers for distributed memory computers

Description: We describe the work performed in the context of a Franco-Berkeley funded project between NERSC-LBNL located in Berkeley (USA) and CERFACS-ENSEEIHT located in Toulouse (France). We discuss both the tuning and performance analysis of two distributed memory sparse solvers (superlu from Berkeley and mumps from Toulouse) on the 512 processor Cray T3E from NERSC (Lawrence Berkeley National Laboratory). This project gave us the opportunity to improve the algorithms and add new features to the codes. … more
Date: June 30, 2000
Creator: Amestoy, P. R.; Duff, I. S.; L'Excellent, J. Y. & Li, X. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Complexants fsro Actinide Element Coordination & Immobilization

Description: The goal of this project is to develop inorganic metal oxide clusters known as polyoxoanions (POAs) as complexants for the immobilization of actinide (An) ions from high-level waste (HLW). A diverse array of rugged isopolyoxoanions, [MxOy]z- , and heteropolyoxoanions, [XaMbOc]d-, comprised of M = V, Nb, Mo, W and X = Si, P polyhedra are under investigation for their ability to incarcerate An ions. The research combines two objectives-An-POA coordination and An-POA containment. The first involve… more
Date: June 2000
Creator: Antonio, Mark R. & Soderholm, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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