Technical Staff Activities

Publications
Presentations
Internal Research Projects
Patents

Publications

S.R. Abt, P.C. Mackin, D.A. Farrell, "Comments on West Valley Site Erosion Modeling," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, August 1999.

C.B. Agnor, R.M. Canup, H.F. Levison, "On the Character and Consequences of Large Impacts in the Late Stage of Terrestrial Accretion," Icarus, Vol. 142, No. 1, 219-237, November 1999.

A. Armstrong, D.A. Farrell, S.L. Painter, D.R. Turner, "Review of the Saturated Zone Flow and Transport Models Used to Support the Viability Assessment of the Proposed High-Level Waste Repository at Yucca Mountain," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, March 1999.

T.A. Bida, R.M. Killen, T.H. Morgan, "Discovery of Calcium in Mercury's Atmosphere," Nature, Vol. 404, 159-161, March 2000.

J.N. Carroll, "Characterization of Snowmobile Particulate Emissions," Society of Automotive Engineers (SAE) Paper No. 2000-01-2003, June 2000.

K.S. Chan, N.S. Cheruvu, G.R. Leverant, "Coating Life Prediction for Combustion Turbine Blades," Transactions of the American Society of Mechanical Engineers (ASME), Vol. 121, 484-488, 1999.

J.A. Ciocco, R.W. Fedors, J.R. Winterle, S.A. Stothoff, "Evaluation of Hydrologic Parameters Used to Assess Performance at Yucca Mountain, Nevada," Supplement to EOS, Transactions of the American Geophysical Union (AGU), Vol. 80, No. 46, Washington, D.C., F399, AGU Fall Meeting, San Francisco, California, December 1999.

N. Coleman, J.R. Winterle, R.W. Fedors, A. Armstrong, D.A. Ferrill, D.L. Hughson, "Resolving Issues in Isothermal Hydrology at Yucca Mountain, Nevada - A Regulatory Perspective," Proceedings for Waste Management 2000, Tucson, Arizona, February-March 2000.

G. Crowley, C.J. Freitas, A.J. Ridley, J.D. Winningham, R.G. Roble, A.D. Richmond, "Next Generation Space Weather Specification and Forecasting Model," Proceedings of the Ionospheric Effect Symposium, Alexandria, Virginia, 34-41, October 1999.

G. Crowley, A.J. Ridley, D. Deist, S. Wing, D.J. Knipp, B.A. Emery, J. Foster, R. Heelis, M. Hairston, B.W. Reinisch, "The Transformation of High-Latitude Ionospheric F-Region Patches into Blobs During the March 21, 1990, Storm," Journal of Geophysical Research, Vol. 105, No. A3, 5,215-5,230, March 2000.

G. Crowley, A.J. Ridley, J.D. Winningham, R.A. Frahm, J.R. Sharber, J. Russell III, "On the Hemispheric Symmetry in Thermospheric Nitric Oxide," Geophysical Research Letters, Vol. 26, No. 11, 1,545-1,548, June 1999.

D.D. Durda, S.A. Stern, "Collision Rates in the Present-Day Kuiper Belt and Centaur Regions: Applications to Surface Activation and Modification on Comets, KBOs, and Pluto-Charon," Icarus, Vol. 143, No. 2, 360-370, February 2000.

M.P. Enright, Y.-T. Wu, "Probabilistic Fatigue Life Sensitivity Analysis of Titanium Rotors," Proceedings, 41st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Non-Deterministic Approaches Forum, Atlanta, Georgia, April 2000.

D.A. Farrell, A. Armstrong, J.R. Winterle, D.R. Turner, D.A. Ferrill, J.A. Stamatakos, N.M. Coleman, M.B. Gray, S.K. Sandberg, "Structural Controls on Groundwater Flow in the Yucca Mountain Region," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, July 1999.

D.A. Farrell, C.B. Connor, P.C. La Femina, R.W. Fedors, "Geophysical and Hydrological Studies Along a Fault Zone," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 17, Washington, D.C., S10, AGU Spring Meeting, Boston, Massachusetts, June 1999.

D.A. Farrell, P.C. La Femina, A. Armstrong, "Constraining Hydrogeologic Models Using Geophysical Techniques: Case Study Fortymile Wash and Amargosa Desert," Proceedings of the Symposium on the Application of Geophysics to Environmental and Engineering Problems, Arlington, Virginia, February 2000.

R.W. Fedors, "Aggregation of Matrix and Fracture Properties for 1D Shallow Infiltration Estimates," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F468, AGU Fall Meeting, San Francisco, California, December 1999.

R.W. Fedors, D. Or, T. Ghezzehei, "Dripping into Subterranean Cavities for Unsaturated Fractures Under Ventilated Conditions," Proceedings for the SME Conference, February-March 2000, Salt Lake City, Utah, Society of Mining and Metallurgy Engineers, Littleton, Colorado, February-March 2000.

R.W. Fedors, D. Or, T. Ghezzehei, S.A. Stothoff, "Dripping into Subterranean Cavities from Unsaturated Fractures," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 17, Washington, D.C., S9, AGU Spring Meeting, Boston, Massachusetts, June 1999.

C.A. Fenrich, M.G. Campbell, M.S. Zuffoletti, "Linux on a PC: A Viable Real-Time Graphics Workstation," Proceedings of the Interservice/Industry Training, Simulation, and Education Conference (IITSEC), Orlando, Florida, November-December 1999.

D.A. Ferrill, J.R. Winterle, G.W. Wittmeyer, D.W. Sims, S. Colton, A. Armstrong, A.P. Morris, "Stressed Rock Strains Groundwater at Yucca Mountain, Nevada," GSA Today, Vol. 9, No. 5, 1-8, 1999.

K.K. Fiedler, K.C. Golas, S. Irish, "Automated Management of Submarine On-Board Training Requirements," Proceedings of the IITSEC, Orlando, Florida, November-December 1999.

C.J. Freitas, "The Issue of Numerical Uncertainty," Second International Conference on Computational Fluid Dynamics (CFD) in the Minerals and Process Industries Proceedings, Melbourne, Australia, 29-34, December 1999.

C.J. Freitas, G. Crowley, "Space Weather Simulation on Networks of Workstations," Proceedings, Forum of Parallel Computing Methods, ASME, International Mechanical Engineering Congress and Exposition, Nashville, Tennessee, FED-Vol. 250, 273-280, November 1999.

K. Froelund, "Real-Time Steady-State Oil Consumption Measurement on Commercial SI-Engine," SAE Paper No. 1999-01-3461, Toronto, Canada, October 1999.

T. Ghezzehei, D. Or, R.W. Fedors, R.T. Green, "Dripping from Unsaturated Fractures - Model and Experiments on Liquid Behavior Near Dripping Plane," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F357, AGU Fall Meeting, San Francisco, California, December 1999.

K.C. Golas, C.S. Bartoli, S.T. Miller, I. Idar, "Research and Development of Intelligent Tutoring Strategies for U.S. Naval Recruits," Proceedings of the IITSEC, Orlando, Florida, November-December 1999.

D.P. Groeneveld, R.W. Fedors, S.A. Stothoff, "Weedy Brome Grasses and Their Potential Effect on the Infiltration and Recharge Rates in the Vicinity of Yucca Mountain, Nevada," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, August 1999.

D.P. Groeneveld, S.A. Stothoff, R.W. Fedors, "Climate-Sensitive Synthetic Vegetation on Yucca Mountain Driven by Elevation, Slope, and Aspect," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F465, AGU Fall Meeting, San Francisco, California, December 1999.

D.L. Hughson, F.T. Dodge, "The Effect of Cavity Wall Roughness on Seepage into Underground Openings," 1999 Supplement, Transactions of the AGU, Vol. 80, No. 17, H521B-02, April 1999.

D.L. Hughson, T.-C. Yeh, "An Inverse Model for Three-Dimensional Flow in Variably Saturated Porous Media," Water Resources Research, Vol. 36, No. 4, 829-839, 2000.

I.A. Khalek, D.B. Kittelson, F. Brear, "Nanoparticle Growth During Dilution and Cooling of Diesel Exhaust: Experimental Investigation and Theoretical Assessment," SAE Paper No. 2000-01-0515, 2000.

R.M. Killen, A.E. Potter, A. Fitzsimmons, T.H. Morgan, "Sodium D2 Line Profiles: Clues to the Temperature Structure of Mercury's Exosphere," Planetary and Space Science, Vol. 47, No. 12, 1,449-1,458, December 1999.

P.I. Lacey, R.L. Mason, "Fuel Lubricity: Statistical Analysis of Literature Data," SAE Paper No. 00FL-339, Paris, France, June 2000.

P.I. Lacey, D.W. Naegeli, "Development of a High Vacuum Wear Test Apparatus Mounted in a Scanning Electron Microscope," Tribotest, Leaf Coppin Publishing, Vol. 6, No. 2, 115-124, Boulogne-ser-Mer, France, December 1999.

P.I. Lacey, M.V. Whalan, D.W. Naegeli, J.L. De La Cruz, "Lubricity of Volatile Fuels for Compression Ignition Engines," SAE Paper No. 00FL-422, Paris, France, June 2000.

P.A. LaPlante, D.A. Farrell, P.C. Mackin, W.M. Murphy, W.C. Patrick, B. Sagar, M.A. Smith, J.R. Weldy, "Comments on the Proposed Environmental Protection Agency Standard 40 Code of Federal Regulations Part 197: CNWRA Input to Commission Paper," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, September 1999.

C.H. Lui, P.C. Mackin, B.A. Russell, K.J. McConnell, "Development of a Risk-Informed and Performance-Based Review Plan for a Potential Repository at Yucca Mountain," Proceedings for Waste Management 2000, Tucson, Arizona, February-March 2000.

R.L. Mason, J.C. Young, "Interpretive Features of a T-Square Chart in Multivariate SPC," Quality Progress, Vol. 33, No. 4, 84-89, April 2000.

S. Mohanty, T.J. McCartin, R. Codell, R. Rice, R.W. Janetzke, M. Jarzemba, G.W. Wittmeyer, G.A. Cragnolino, S.A. Stothoff, P.A. LaPlante, S. Hsiung, G. Rice, T. Ahn, J.R. Weldy, R.W. Fedors, C. McKenney, B.E. Hill, C.B. Connor, J. Trapp, R. Abu-Eid, R.T. Green, B. Leslie, K. Gruss, J.A. Stamatakos, A. Ibrahim, N. Coleman, J.R. Winterle, A. Ghosh, W.M. Murphy, "A Total-System Performance Assessment Code for the Safety Assessment of the Proposed High-Level Nuclear Waste Repository at Yucca Mountain," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F313, AGU Fall Meeting, San Francisco, California, December 1999.

E.H. Oelkers, P.A. Bjorkum, O. Walderhaug, P.H. Nadeau, W.M. Murphy, "Making Diagenesis Obey Thermodynamics and Kinetics: The Case of Quartz Cementation in Sandstones from Offshore Mid-Norway," Applied Geochemistry, Vol. 15, 295-309, 2000.

D. Or, M. Tuller, R.W. Fedors, R.T. Green, "Hydraulic Properties of Partially Saturated Fractured Porous Media," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F458, AGU Fall Meeting, San Francisco, California, December 1999.

R.T. Pabalan, F.P. Bertetti, "Experimental and Modeling Study of Ion Exchange Between Aqueous Solutions and the Zeolite Mineral Clinoptilolite," Journal of Solution Chemistry, Vol. 28, 367-393, 1999.

R.T. Pabalan, D.R. Turner, M.P. Miklas Jr., "Technetium-99 Chemistry in Reduced Groundwater: Implications for the Performance of a Proposed High-Level Nuclear Waste Repository at Yucca Mountain, Nevada," Scientific Basis for Nuclear Waste Management - XXIII, D. Shoesmith, R. Smith (eds.) Materials Research Society Symposium Proceedings, Pittsburgh, Pennsylvania, 2000, and Symposium on the Scientific Basis for Nuclear Waste Management XXIII, Materials Research Society Fall Meeting, Boston, Massachusetts, November-December 1999.

S.L. Painter, A. Armstrong, "On the Origin of Groundwater Temperature Variations near Yucca Mountain, Nevada," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, F337, November 1999.

S.L. Painter, G. Mahinthakumar, "Prediction Uncertainty for Tracer Migration in Random Heterogeneities with Multifractal Character," Advances in Water Resources, Vol. 23, 49, 1999.

J.O. Parra, "Poroelastic Model to Relate Seismic Wave Attenuation and Dispersion to Permeability Anisotropy," Geophysics, Vol. 65, No. 1, 202-210, January 2000.

O. Pensado, S. Mohanty, "Prediction of Waste Package Life for High-Level Radioactive Waste Disposal at Yucca Mountain," Symposium on the Scientific Basis for Nuclear Waste Management XXIII, Materials Research Society Fall Meeting, Boston, Massachusetts, November-December 1999.

D.A. Pickett, R.W. Fedors, "Review of the Hanford Immobilized Low-Activity Tank Waste Performance Assessment," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, March 1999.

A.E. Potter, R.M. Killen, T.H. Morgan, "Rapid Changes in the Sodium Exosphere of Mercury," Planetary and Space Science, Vol. 47, 1,441-1,448, December 1999.

J.D. Prikryl, F.P. Bertetti, R.T. Pabalan, "Effects of Surfactant Modification on the Sorption Behavior of Natural Zeolites for Strontium(2+) and Uranium(6+)," Symposium on the Scientific Basis for Nuclear Waste Management XXIII, Materials Research Society Fall Meeting, Boston, Massachusetts, November-December 1999.

J.D. Prikryl, R.T. Pabalan, "Sorption of Uranium(VI) and Neptunium(V) by Surfactant-Modified Natural Zeolites, Scientific Basis for Nuclear Waste Management XXII, D. Wronkiewicz, J. Lee (eds.), Materials Research Society Symposium Proceedings, Warrendale, Pennsylvania, Vol. 556, 1,035-1,042, 1999.

A.J. Ridley, G. Crowley, R. Link, R.A. Frahm, J.D. Winningham, J.R. Sharber, J. Russell III, "Variations of the Thermospheric Nitric Oxide Mass Mixing Ratio as a Function of Kp, Altitude, and MLT," Geophysical Research Letters, Vol. 26, No. 11, 1,541-1,544, June 1999.

M.J. Sablik, B. Augustyniak, M. Chmielewski, "Modeling Biaxial Stress Effects on Magnetic Hysteresis in Steel with the Field and Stress Asex Noncoaxial," Journal of Applied Physics, Vol. 85, No. 8, 2A, 4,391-4,393, April 1999.

M.J. Sablik, Y. Lu, G.L. Burkhardt, "Modeling Magnetostrictive Generation of Elastic Waves in Steel Pipes: II. Comparison to Experiment," International Journal of Applied Electromagnetics and Mechanics, Vol. 10, 167-176, April 1999.

M.J. Sablik, S.W. Rubin, "Modeling Magnetostrictive Generation of Elastic Waves in Steel Pipes: I. Theory," International Journal of Applied Electromagnetics and Mechanics, Vol. 10, 143-166, April 1999.

D.W. Sims, D.A. Ferrill, J.A Stamatakos, "Role of a Ductile D�collement in the Development of Pull-Apart Basins," Journal of Structural Geology, Vol. 21, 533-554, 1999.

D.W. Sims, J.A. Stamatakos, D.A. Ferrill, H.L. McKague, D.A. Farrell, A. Armstrong, "Three-Dimensional Structural Model of the Amargosa Desert, Version 1.0: Report to Accompany Model Transfer to the Nuclear Regulatory Commission," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, 1999.

D.C. Slater, S.A. Stern, W.M. Tomlinson, D.E. Mahoney, J.W. Parker, P.M. Tamblyn, W.B. Colwell, D.D. Durda, P.R. Weissman, F. Vilas, "SWUIS: A Compact Astronomical UV/VIS/IR Imaging System for Manned Space-Based Platforms including the Space Shuttle and the International Space Station," Space Technology and Applications International Forum (STAIF-99), CP-458, M.S. El-Genk (ed.), 299-305, 1999.

M.J. Smith, "A P-Norm Approach to the Linear Regulator Problem," Proceedings, American Controls Conference, San Diego, California, June 1999.

M.J. Smith, A.E. Frazho, "On Interpolation Problems in the Complex Right Half Plane," Operator Theory, Advances and Applications, Vol. 115, Birkhauser Verlag, Basel, Switzerland, 2000.

M.Q. Smith, C.H. Popelar, "A Strain Based Rupture Criterion for Corroded Pipelines," ICAWT '99 - Pipeline Welding and Technology Proceedings, Galveston, Texas, October 1999, and ASME ETCE/OMAE Conference Proceedings, New Orleans, Louisiana, February 2000.

S.A. Stern, "Studies of Comets in the Ultraviolet: The Past and the Future," International Space Science Institute, Bern, Switzerland, The Composition and Origin of Cometary Materials, K. Altwegg, P. Ehrenfreund, J. Geiss, W. Huebner (eds.), 355, 1999.

S.A. Stothoff, O. Chadwick, D. Groeneveld, D. Or, R.W. Fedors, D. Woolhiser, "Assessing Changes in Deep Percolation Over a Glacial Cycle Due to Linked Changes in Climate, Soils, and Vegetation at Yucca Mountain, Nevada," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 17, Washington, D.C., S3-S4, AGU Spring Meeting, Boston, Massachusetts, June 1999.

S.A. Stothoff, D. Groeneveld, O. Chadwick, R.W. Fedors, "Response of Deep Percolation to Vegetation Succession Scenarios at Yucca Mountain, Nevada," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F458, AGU Fall Meeting, San Francisco, California, December 1999.

S.A. Stothoff, D.L. Hughson, G.I. Ofoegbu, R.T. Green, R.W. Fedors, D. Or, M. Tuller, "Discrete-Fracture Modeling of Drift-Scale Processes at Yucca Mountain, Nevada," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 17, Washington, D.C., S10, AGU Spring Meeting, Boston, Massachusetts, June 1999.

E.J. Trivette Jr., J.R. Deres, W.C. Youmans, "Technological Challenges for Geometric Pairing for the Dismounted Soldier," Proceedings of the IITSEC, Orlando, Florida, November-December 1999.

D.R. Turner, R.T. Pabalan, "Abstraction of Mechanistic Sorption Model Results for Performance Assessment Calculations at Yucca Mountain, Nevada," Waste Management, Vol. 19, 375-388, 1999.

D.R. Turner, R.T. Pabalan, J.D. Prikryl, F.P. Bertetti, "Radionuclide Sorption at Yucca Mountain, Nevada - A Demonstration of an Alternative Approach for Performance Assessment," Scientific Basis for Nuclear Waste Management XXII, D. Wronkiewicz, J. Lee (eds.), Materials Research Society Symposium Proceedings, Warrendale, Pennsylvania, Vol. 556, 583-590, 1999.

T.L. Ullman, C.C. Webb, "Nonroad Engine Activity Analysis and Transient Cycle Generation," SAE Paper No. 1999-01-2800, September 1999.

W.R. Ward, R.M. Canup, "Origin of the Moon's Orbital Inclination from Resonant Disk Interactions," Nature, Vol. 403, 741-743, February 2000.

T.J. Warnagiris, "Understanding Range Limitations for Low-Frequency Unlicensed Transmissions," RF Design Magazine, 36, April 1999.

C.C. Webb, "ERIC - A System to Modify Vehicle Emissions Through Computer Controlled Signal Interception," SAE Paper No. 1999-01-0773, SAE Congress and Exposition, Detroit, Michigan, March 1999.

C.C. Webb, W.C. DiSilverio, P.A. Weber, B.B. Bykowski, D. McKinnon, "Phased Air/Fuel Perturbation - A Fuel Control Technique for Improved Catalyst Efficiency," SAE Paper No. 2000-01-0891, SAE Congress and Exposition, Detroit, Michigan, March 2000.

C.C. Webb, E.F. Quillian, "PC-Based Control of a Gasoline-Fueled Burner Aging Test Stand to Simulate Engine Exhaust," LabVIEW for Automotive, Biomedical, Semiconductor, Telecommunications, and Other Applications, Prentice Hall, Upper Saddle River, New Jersey, 29-32, Spring 2000.

J.R. Winterle, R.W. Fedors, D.L. Hughson, S.A. Stothoff, "Review of the Unsaturated Zone Models Used to Support the Viability Assessment of a Repository at Yucca Mountain," Center for Nuclear Waste Regulatory Analyses, San Antonio, Texas, February 1999.

D.A. Woolhiser, R.W. Fedors, S.A. Stothoff, "Possible Sources of Focused Infiltration: Upper Split Wash Watershed, Yucca Mountain, Nevada," Supplement to EOS, Transactions of the AGU, Vol. 80, No. 46, Washington, D.C., F350, AGU Fall Meeting, San Francisco, California, December 1999.

Y.-T. Wu, M.P. Enright, H.R. Millwater, G.G. Chell, C.J. Kuhlman, G.R. Leverant, "Probabilistic Methods for Design Assessment of Reliability with Inspection (DARWIN)," Proceedings, 41st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference - Non-Deterministic Approaches Forum, Atlanta, Georgia, April 2000.

Presentations

A. Armstrong, D.R. Turner, S.L. Painter, D.A. Farrell, N.M. Coleman, Hydrogeological Inferences From Thermal and Chemical Measurements at Yucca Mountain, Nevada," AGU Spring Meeting, Boston, Massachusetts, May-June 1999.

B. Augustyniak, M. Chmielewski, M.J. Sablik, "Multiparameter Magnetomechanical Properties Measurements with Application to Microstructural NDE," Intermag 2000 Conference, Toronto, Canada, April 2000.

D.S. Bass, W.M. Murphy, G.P. Miller, J.D. Walker, "Smashing into Rock and Organic Molecules at 11.2 km/second: Preliminary Results Regarding the Stability of Organic Molecules Under Hypervelocity Impact Conditions," 30th Annual Lunar and Planetary Sciences Conference, Houston, Texas, March 1999.

D.S. Bass, T. Siili, "Downslope Windstorm Effects and Raising Dust in Hellas Basin," 30th Annual Lunar and Planetary Sciences Conference, Houston, Texas, March 1999.

J. Benkhoff, W.F. Huebner, H. Rauer, "From Coma Abundances to Composition and Evolution History of Comet Nuclei," XXIV Annual Meeting of the European Geophysical Society, The Hague, Netherlands, April 1999.

C.S. Brossia, "Effects of Environmental, Electrochemical, and Metallurgical Variables on the Passive and Localized Dissolution of Ti-Gr7," NACE Corrosion Expo Conference, Orlando, Florida, March 2000.

K.S. Chan, Y-D. Lee, D.L. Davidson, "Predicting the Limiting Threshold Stress for High-Cycle Fretting Fatigue in Ti-6Al-4V," 5th National Turbine Engine High Cycle Fatigue Conference, Chandler, Arizona, March 2000.

G.G. Chell, S.J. Hudak Jr., Y.-D. Lee, J.J. Feiger, "An Assessment of the 'Worst Case Notch' Model for Prediction of HCF Threshold Stresses in the Presence of Foreign Object Damage," 5th National Turbine Engine High Cycle Fatigue Conference, Chandler, Arizona, March 2000.

J.S. Contardi, D.R. Turner, T.M. Ahn, "Modeling Colloid Transport for Performance Assessment," Seventh International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere - Migration '99, Lake Tahoe, Nevada, September-October 1999.

G. Crowley, T.J. Immel, A.J. Ridley, D.J. Knipp, B.A. Emery, D. Lummerzheim, M. Ruohoniemi, "Effects of Temporal and Spatial Resolution on Joule Heating Estimates from AMIE," AGU Fall Meeting, San Francisco, California, December 1999.

G. Crowley, G. Thomas, R.G. Roble, J. Olivero, H. Liu, "Modeling the Thermal Structure and Dynamics of the Mesosphere at Solstice," NASA Upper Atmospheric Research Satellite Science Meeting, Virginia Beach, Virginia, October 1999.

D.S. Dunn, "Stress Corrosion Cracking, Passive, and Localized Corrosion of Alloy 22 High-Level Radioactive Waste Containers," NACE Corrosion Expo Conference, Orlando, Florida, March 2000.

D.A. Ferrill, "Normal Fault Growth Processes and Implications for Fluid Flow and Seismicity," The University of Texas, Austin, Texas, April 2000.

R.A. Frahm, J.R. Sharber, J.D. Winningham, G. Crowley, A.J. Ridley, R. Link, "Climatology for Studying the Effects of Particles on the Atmosphere," NASA Upper Atmospheric Research Satellite Science Meeting, Virginia Beach, Virginia, October 1999.

K. Froelund, "Impact of Diesel Engine Oil Consumption on Diesel Engine Emissions," Department of Energy/National Renewable Energy Laboratory Conference Exploring Low Emission Diesel Engine Oils, Scottsdale, Arizona, January 2000.

K. Froelund, "Impact of Engine Oil Consumption on Diesel Engine Emissions," ASME Internal Combustion Engine Spring Technical Conference, San Antonio, Texas, April 2000.

B.B. Graskow, D.B. Kittelson, I.A. Khalek, M.R. Ahmadi, J.E. Morris, "Characterization of Exhaust Particulate Emissions from a Spark Ignition Engine," SAE World Congress, Detroit, Michigan, March 2000.

C. Green, "Environmental and Electrochemical Factors on the Localized Corrosion Zircaloy," NACE Corrosion Expo Conference, Orlando, Florida, March 2000.

R.R. Harvey, "Introduction to Lean Manufacturing," San Antonio Manufacturers Association Plant Operations Special Interest Group Meeting, San Antonio, Texas, May 2000.

A.E. Holt, G.M. Light, "Development of an Aural Ultrasonic Inspection System," Ninth International Conference on Pressure Vessel Technology, Sydney, Australia, April 2000.

T.J. Immel, G. Crowley, J.D. Cravens, "Global FUV Imaging for Determination of Thermospheric Storm Effects," AGU Fall Meeting, San Francisco, California, December 1999.

J.-M. Jahn, G.D. Reeves, R.H. Friedel, M. Walt, H.D. Voss, J. Blake, "Substorm Particle Injections Near Solar Maximum Survey of POLAR Observations," Spring Meeting of the AGU, Boston, Massachusetts, June 1999.

M.K. Khair, J. Lemaire, S. Fischer, "Achieving Heavy-Duty Diesel NOx/PM Levels Below the EPA 2002 Standards - An Integrated Solution," SAE Congress and Exposition, Detroit, Michigan, March 2000.

M.K. Khair, J. Lemaire, S. Fischer, "Integration of Exhaust Gas Recirculation, Selective Catalytic Reduction, Diesel Particulate Filters, and Fuel-Borne Catalyst for NOx/PM Reduction," SAE Fuel and Lubricants Meeting, Paris, France, June 2000.

H. Kwun, G.M. Light, "Applications of Magnetostrictive Sensor Technology," Ninth International Conference on Pressure Vessel Technology, Sydney, Australia, April 2000.

P.I. Lacey, "Correlation Between the FZG and Ryder Load-Stage Gear Tests," SAE E-34 Technical Symposium, Cardiff, United Kingdom, September 1999.

G.R. Leverant, H.R. Millwater, R.C. McClung, "Turbine Rotor Material Design Program," Federal Aviation Administration Technical Oversight Group on Aging Aircraft, Phoenix, Arizona, April 2000.

G.M. Light, S. Kokkins, S. MacPherson, "Development of Ultrasonic Inspection Technology for Catenary Wire," ASME 6th Nondestructive Evaluation Topical Conference, San Antonio, Texas, April 1999.

T. McCartin, J. Kotra, K. McConnel, E. Wolff, S. Mohanty, "Gaining Public Confidence in Performance Assessment," Waste Management 2000 - High Level Waste, Low Level Waste, Mixed Wastes, and Environmental Restoration Conference, Tucson, Arizona, February-March 2000.

R.C. McClung, S.J. Hudak Jr., K.S. Chan, "Practical Implications of Small-Crack Behavior in High Cycle Fatigue of Ti-6Al-4V," 5th National Turbine Engine High Cycle Fatigue Conference, Chandler, Arizona, March 2000.

H.R. Millwater, "DARWIN Code Demonstration," Fourth Annual FAA/Air Force Workshop on the Application of Probabilistic Methods to Gas Turbine Engines, Jacksonville, Florida, December 1999.

H.R. Millwater, "A Probabilistically-based Damage Tolerance Analysis Computer Program for Hard Alpha Anomalies in Titanium Rotors," ASME Turbo Expo 2000, Munich, Germany, May 2000.

H.R. Millwater, Y.-T. Wu, M.P. Enright, "A Probabilistically Based Damage Tolerance Analysis Computer Program for Hard Alpha Anomalies in Titanium," U.S. Air Force-Aircraft Structural Integrity Program (USAF-ASIP) Conference, San Antonio, Texas, November-December 1999.

A. Minachi, A.E. Crouch, "Measurement of Ultrasonic Attenuation in High-Pressure Gases," ASME 6th Nondestructive Evaluation Topical Conference, San Antonio, Texas, April 1999.

O. Moghissi, "Corrosion Monitoring Techniques for Thermally Driven Wet and Dry Conditions," NACE Corrosion Expo Conference, Orlando, Florida, March 2000.

S. Mohanty, "Total System Performance Assessment of a Proposed High Level Waste Repository at Yucca Mountain - A Regulatory Perspective," The University of Texas, Austin, Texas, April 2000.

S. Mohanty, R.W. Rice, "Radionuclide Release Rates at the Receptor Location for the Proposed High-Level Radioactive Waste Disposal Site at Yucca Mountain," Materials Research Society Fall Meeting, Boston, Massachusetts, November-December 1999.

L.J. Paxton, D. Morrison, G. Crowley, D.J. Strickland, G.J. Romick, A.B. Christensen, C.I. Meng, "Multispectral Far Ultraviolet Images: The Effect of Neutral Atmosphere Composition and Temperature on the Retrievals," AGU Fall Meeting, San Francisco, California, December 1999.

J.D. Prikryl, A. Jain, R.T. Pabalan, D.R. Turner, "Uranium VI Sorption Behavior on Silicate Mineral Mixture," Seventh International Conference on the Chemistry and Migration Behavior of Actinide and Fission Products in the Geosphere, Lake Tahoe, Nevada, September-October 1999.

R. Rice, S. Mohanty, "Development of an Integrated System Computer Code for Reviewing the Performance Assessment of the Proposed High-Level Radioactive Waste Repository at Yucca Mountain Center," Waste Management 2000 - High Level Waste, Low Level Waste, Mixed Wastes, and Environmental Restoration Conference, Tucson, Arizona, February-March 2000.

D.S. Riha, B.H. Thacker, H.R. Millwater, Y.-T. Wu, M.P. Enright, "Probabilistic Engineering Analysis Using the NESSUS Software," 41st Annual American Institute of Aeronautics and Astronautics (AIAA) SDM Conference, Atlanta, Georgia, April 2000.

M.J. Sablik, D.C. Jiles, "Modeling Hysteretic Magnetic Properties with Changing Torsion and Constant Magnetic Field in Steel," Intermag 2000 Conference, Toronto, Canada, April 2000.

S. Scherer, M. Mildner, K. Altwegg, H. Balsiger, M. Hohl, P. Wurz, J.H. Waite Jr., M.P. W�est, D.T. Young, C. Aoustin, H. R�me, S. Livi, B. Wilken, "Design and Performance Characteristics of the Reflectron Time-of-Flight Mass Spectrometer for the Rosetta Comet Rendezvous Mission," AGU Fall Meeting, San Francisco, California, December 1999.

C.J. Schwartz, G.M. Light, "Use of Magnetostrictive Sensor Technology for Detection of Transverse Defects in Rail," American Society for Nondestructive Testing Spring Conference, Birmingham, Alabama, March 2000.

M.J. Smith, "Precise Electrohydraulic Motion Control Using New Nonlinear Feedback Compensation Techniques," International Exposition for Power Transmission, Chicago, Illinois, April 2000.

J.J. Sojka, G. Crowley, L.J Paxton, R. Pfaff, J. Grebowski, J.P. Thayer, J. Clemmens, "Synchronized Deep Dipping by the GEC Satellites," AGU Fall Meeting, San Francisco, California, December 1999.

S.C. Solomon, C.A. Barth, S.M. Bailey, W. Wang, T.L. Killeen, A.G. Burns, G. Crowley, A.J. Ridley, D. Lummerzheim, "Measurements and Models of Thermospheric Nitric Oxide Produced by Auroral Precipitation," Spring Meeting of the AGU, Boston, Massachusetts, June 1999.

B.S. Spigel, J.P. Buckingham, F.J. McMaster, "Viability of High-Aspect-Ratio Composite Doublers for Aircraft Repair," USAF-ASIP Conference, San Antonio, Texas, November-December 1999.

N. Sridhar, "Application of a General Reactive Transport Model to Predict Environment Under Disbonded Coatings," NACE Corrosion Expo Conference, Orlando, Florida, March 2000.

S.A. Stern, "The Kuiper Belt and the Edge of Night," Ball Aerospace Seminar, Boulder, Colorado, November 1999.

S.A. Stern, "Pluto, the Edgeworth-Kuiper Belt, the Pluto-Kuiper Express Flyby Mission," 31st Annual Division for Planetary Sciences Meeting, Padua, Italy, October 1999.

S.A. Stern, "Recent Work on the Collisional Evolution of the Putative Vulcanoid Population," Jet Propulsion Laboratory, Pasadena, California, December 1999.

S.A. Stern, "Triton's Surface Age and Its Implications," CalTech Planetary Seminar, Pasadena, California, December 1999.

B. Surampudi, "Modeling of Low-Speed Characteristics of a Swash-Plate Type Axial Piston Hydraulic Motor," International Exposition for Power Transmission, Chicago, Illinois, April 2000.

V.P. Swaminathan, "Root Cause Failure Analysis and Service Behavior of Gas Turbine Hot Section Components - A Tutorial Module," ASME International Gas Turbine Conference and Exposition, Munich, Germany, May 2000.

V.P. Swaminathan, H.R. Simmons, "Condition and Life Assessment of LM5000 Hot Section Components," Western Turbine User's Conference and Exhibit, San Diego, California, March 2000.

B.H. Thacker, D.P. Nicolella, M. Jones, "Risk Assessment of Female Aviators," 41st Annual AIAA SDM Conference, Atlanta, Georgia, April 2000.

D.R. Turner, "The Role of Radionuclide Sorption in High-Level Waste Performance Assessment: Approaches for the Abstraction of Detailed Models," 91st Annual Meeting of the Soil Science Society of America, Salt Lake City, Utah, October-November 1999.

P.W. Valek, J.D. Perez, C.J. Pollock, J.-M. Jahn, M.P. W�est, T.E. Moore, B.L. Giles, W.K. Peterson, "Terrestrial Ion Outflows in Response to Coronal Mass Ejections," AGU Fall Meeting, San Francisco, California, December 1999.

B.J. Walls, M.E. Epperly, J.H. Waite Jr., M.E. Pilcher, "Development of a Radiation Hardened 2 GHz Acquisition System for Space Applications," Core Technologies for Space Systems Conference, Colorado Springs, Colorado, November 1999.

K.C. Walter, "The Use of Plasma Immersion Ion Processing in the Synthesis of Protective Coatings for Al Die Casting," 5th International Workshop on Plasma-Based Ion Implantation, Kyoto, Japan, December 1999.

W.R. Ward, "An Impact Origin of the Earth-Moon System," University of Maryland, College Park, Maryland, November 1999, and University of Chicago, Chicago, Illinois, February 2000.

W.R. Ward, "On the Early Orbit of the Moon," and "Creation and Evolution of an Impact-Generated Protolunar Disk," AGU Fall Meeting, San Francisco, California, December 1999.

W.R. Ward, "Origin of the Earth-Moon System," Fermi National Laboratories, Chicago, Illinois, February 2000.

C.C. Webb, E.F. Quillian, "PC-Based Control of a Gasoline-Fueled Burner Aging Test Stand to Simulate Engine Exhaust," National Instrument VIP Days, Santa Clara, California, May 2000.

G.R. Wendel, "Regenerative Hydraulic Systems for Increased Efficiency," International Exposition for Power Transmission, Chicago, Illinois, April 2000.

J.J. White, "Emission Reduction Technologies for Two-Stroke Engines," "Two-Stroke Engines: Applications, Design Characteristics, and Emissions and Fuel Economy," and "Emissions From Snowmobile Engines Using Bio-based Fuels and Lubricants," Clean Snowmobile Technology Workshop, West Yellowstone, Montana, March 2000.

J.J. White, "Impact of Emission Regulations on Industrial Engine Applications," Ford Power Products Annual Distributors Meeting, Dearborn, Michigan, February 2000.

Internal Research Projects

Funded April 1, 2000

A.R. Burmeister, D.-M. Werner, "Detection and Direction Finding for Time Division Multiple Access Cellular Signals."

F.T. Dodge, S.T. Green, "Compression Mass Gauge for Very Large Cryogenic Tanks."

J.R. Keys, J.O. Parra, S. Hsiung, "Seismic-Acoustic Delineation and Mapping Technique for DNAPL Contaminated Geological Materials."

R.L. Killough, M.K. McLelland, "Advanced System Software for the SC-603E Spacecraft Computer."

H.F. Levison, "Capability Development for Large Scale Solar System Formation Studies."

Q. Ni, J.D. King, "Develop Low-Field NMR Technology to Determine the Age-Related Human Bone Changes."

D.P. Nicolella, B.H. Thacker, "Probabilistic Cervical Spine Injury Analysis Using the Blue Mountain Massively Parallel Supercomputer."

A.J. Smalley, "Shaft Stiffening Effects in Large Turbomachines."

R.A. Smithson, "Incipient Engine Failure Predictor."

D.A. Tong, J.M. Pickard, "Investigation into ECG Motion Artifact Reduction."

K.C. Walter, J.H. Arps, "Development of Novel Vanadium Carbide Coatings Using a Large Area, Non Line-of-Sight Plasma Process."

Y.-T. Wu, S. Mohanty, "Efficient Probabilistic Analysis Methods for Complex Numerical Models with Large Numbers of Random Variables."

Funded July 1, 2000

G.L. Burkhardt, J.L. Fisher, "Characterization of Gas Turbine Blade Coating Layers Using Eddy Current Testing."

D.D. Durda, "Capability Development for Simulating a New Paradigm of Planetary Formation."

R.G. Fenske Jr., J.H. Nixon, "Java Interface for SIGINT Processing."

E.A. Franke, R.J. Beeson, M.J. Magee, J.N. Mitchell, M.P. Rigney, "Development of Precision Surface Profile Measurement Capability."

R. Goldstein, J.P. Cravens, "A Technology Study for Free-Flying Sciencecraft."

K.A. Lysiak, J.E. Hipp, "DF Ship Calibration by Numerical Modeling."

G.P. Miller, "Impact Analysis of Rare-Earth Magnet Materials."

M.P. Rigney, "Investigation of Animal Detection for Traffic Accident Mitigation."

A.J. Smalley, J.R. Hollingsworth, "Performance Verification for the Diverging Taper Honeycomb Seal."

B. Surampudi, J. Steiber, "Design and Implementation of a Reconfigurable Virtual Hybrid Electric Vehicle Simulator."

F.A. Thomassy, P. Harrell, "An Investigation of Integrated System Dynamic Simulation for Reciprocating Machinery."

M.P. W�est, S.E. Weidner, "Investigations of Solid-State Detectors for Time-of-Flight Mass Spectrometry."

SwRI Patents

P.H. Devlin, R.M. Cordero, N.G. Chamoun, J.R. Shambroom, C. Fendrock, T.L. McDaniel, "Electrode Array System for Measuring Electrophysiological Signals," U.S. Patent No. 6,032,064, February 2000.

D.W. Stewart, "Hydraulically Actuated Exhaust Gas Recirculation System and Turbocharger for Engines," U.S. Patent No. 6,041,602, March 2000.

S.C. Grigory, G.W. Deel, J.A. Villarreal, R. Glauser, "Method and System for Repairing a Damaged Plastic Pipe," U.S. Patent No. 6,004,412, December 1999.

S.D. Huffman, B.C. Montag, S.D. Long, "Interactive Training System for AWACS Weapons Directors," U.S. Patent No. 6,053,736, April 2000.

J.D. King, Q. Ni, A. De Los Santos, "Measurement of Flow Fractions, Flow Velocities, and Flow Rates of a Multiphase Fluid Using NMR Sensing," U.S. Patent No. 6,046,587, April 2000.

C.W. Lew, "Encapsulated Additives," U.S. Patent No. 6,056,992, May 2000.

J.F. Maguire, J.D. Busbee, D.C. Liptak, D.P. Lubbers, S.R. LeClair, R.R. Biggers, "Process Control for Pulsed Laser Deposition Using Raman Spectroscopy," U.S. Patent No. 6,038,525, March 2000.

T.E. Owen, D.L. Davidson, A. Nagy, "High-Cycle Fatigue Test Machine," U.S. Patent No. 6,023,980, February 2000.

P.P. Paul, S.T. Schwab, "Methods for Making High Temperature Coatings from Precursor Polymers to Refractory Metal Carbides and Metal Borides," U.S. Patent No. 6,042,883, March 2000.

L. Rodriguez, G. Dearnaley, "Preventing Radioactive Contamination of Porous Surfaces," U.S. Patent No. 6,042,896, March 2000.

D.J. Stevens, K.A. Marchand, T.J. Warnagiris, "Reactive Personnel Protection System," U.S. Patent No. 6,029,558, February 2000.

T.L. Ullman, C.C. Webb, "Mobile Vehicle Emissions Sampling System," U.S. Patent No. 6,016,711, January 2000.

S.T. Wellinghoff, S.A. Barenberg, J.J. Kampa, D.E. Barlow, "Compositions for Sustained Release of a Gas," U.S. Patent No. 6,046,243, April 2000.

Published in the Summer 2000 issue of Technology Today®, published by Southwest Research Institute. For more information, contact Maria Martinez.