James A. Ten Cate

Seismoacoustician

Research Interests

• Nonlinear Acoustics and Nonlinear Elasticity
• Seismo-Acoustics
• Medical Ultrasonics, Acoustics
• Nondestructive Testing and Evaluation
• Science Education

Contact

• 
• 505-665-6667 - Phone
• 505-667-8487 - FAX

Diversions

• Own and occasionally race (SCCA Solo II) two british sports cars (TR6 and TR8)
• Regular contributor to the newsletter of the TR8 Car Club of America
• Technical Editor of The Vintage Triumph, magazine of the Vintage Triumph Register
• Helped set up the World Wide Wedge, A Triumph TR7 and TR8 Website

Education

• Ph.D., Mechanical Engineering, Acoustics, University of Texas, 1992. "Scattering of sound by sound: Nonlinear interaction of collinear and noncollinear sound beams."
• M.S.E., Mechanical Engineering, Acoustics, University of Texas, 1983. "Noncollinear interaction of two noncollinear sound waves in a rectangular waveguide," Also issued as Technical Report ARL-TR-84-16, Applied Research Laboratories, The University of Texas at Austin, June 1984 (ADA 144-440).
• B.A., Physics & Math, Calvin College, 1979 & 1980

Experience

• Los Alamos National Laboratory, 1998-present, Technical Staff Member, Earth and Environmental Sciences
• Los Alamos National Laboratory, 1994-1998, Postdoctoral Research Associate, Earth and Environmental Sciences
• Applied Research Laboratories, 1992-1994
• Postdoctoral Fellow, Environmental Sciences Group, University of Texas at Austin & Applied Research Laboratories, 1985-1991
• Research Assistant, Nonlinear Acoustics Division, Calvin College, 1983-1985
• Lecturer, Physics and Engineering Departments, Applied Research Laboratories, 1980-1983
• Research Assistant, Physical Acoustics Group, Calvin College, Summer 1978- Spring 1979
• NSF Intern, Solid State Research Group

Technical Skills

• Instrumentation and measurements
• Advanced Numerical Simulations
• Computation and Computer-controlled Experiments
• Equipment Repair and Calibration

Affiliations

• Acoustical Society of America
• American Geophysical Union
• Society of Automotive Engineers
• Vintage Triumph Register

Links

• Los Alamos Center for Nonlinear Elastic Materials
• The Puzzle of Unexpected Disorder: Probing Rocks with Neutrons
• Seismic Stimulation for Enhanced Production of Oil Reservoirs
• Computational & Experimental Geophysics
• Exploring Nonlinear Mechanical Behaviour of Rocks at LANSE
• The Concept of Universality Class
• Elastic Nonlinear Response in Granular Media under Resonance Conditions
• Linear and Nonlinear Time Reverse Acoustics in Geomaterials

Selected Publications

J.A. TenCate, E. Smith, and R.A. Guyer, "Universal slow dynamics in granular solids," Phys. Rev. Lett., 85, 1020-1024 (2000).

E. Smith and J. A. TenCate, "Sensitive determination of nonlinear properties of Berea sandstone at low strains," Geophys. Res. Lett., 27, 1985-1988 (2000).

R.A. Guyer, J.A. TenCate, and P.A. Johnson, "Hysteresis and the dynamic elasticity of consolidated granular materials," Phys. Rev. Lett., 82, 3280-3283 (1999).

J A. TenCate and T.J. Shankland, "Slow dynamics in the nonlinear elastic response of Berea sandstone," Geophys. Res. Lett., 23, 3019-3022 (1996).

J. A. TenCate, K.E-A. VanDenAbeele, T.J. Shankland, and P.A. Johnson "Laboratory study of linear and nonlinear elastic pulse propagation in sandstone," J. Acoust. Soc. Am., 100, 1383-1391 (1996).

James A. TenCate, "An experimental investigation of the nonlinear pressure field produced by a plane circular piston," J. Acoust. Soc. Am., 94, 1084-1089 (1993).

J. A. TenCate, J. F. Manning, J. Shooter, T. G. Muir, Å. Kristensen, A. Caiti, and E. Michelizzi, "Beamforming on seismic interface waves with an array of geophones on the shallow seafloor," IEEE J. of Oceanic Engr., 20, 300-310 (1995).

James A. TenCate, "An experimental investigation of the nonlinear pressure field produced by a plane circular piston," J. Acoust. Soc. Am., 94, 1084-1089 (1993).

Jacqueline Naze Tjøtta, James A. TenCate, and Sigve Tjøtta, "Effects of boundary conditions on the nonlinear interaction of sound beams," J. Acoust. Soc. Am., 89, 1037-1049 (1991).

M.F. Hamilton and J.A. TenCate, "Finite amplitude sound near cutoff in higher-order modes of a rectangular duct,"J. Acoust. Soc. Am., 84, 327-334 (1988).

M.F. Hamilton and J.A. TenCate, "Sum and difference frequency generation due to noncollinear wave interaction in a rectangular duct," J. Acoust. Soc. Am., 81, 1703-1712 (1987).

J.A. TenCate, J. Zwart, and J.B. Van Zytveld, "Electrical resistivity and thermopower of europium and ytterbium in the solid and liquid phases," J. Phys. F:, 10, 669-76 (1980).