Paul A. Johnson spends much of his time researching Nonlinear system, Elasticity, Optics, Mechanics and Seismic wave. Paul A. Johnson is interested in Nonlinear acoustics, which is a field of Nonlinear system. His research in Elasticity intersects with topics in Quasistatic process, Linear elasticity and Condensed matter physics.
Paul A. Johnson usually deals with Optics and limits it to topics linked to Nondestructive testing and Attenuation, Basis, Spectroscopy, Sideband and Wave modulation. His study in Mechanics is interdisciplinary in nature, drawing from both Nonlinear elasticity, Coda and Interferometry. His work deals with themes such as Slip, Fault, Seismic gap and Granular material, which intersect with Seismic wave.
Nonlinear system, Mechanics, Seismology, Acoustics and Slip are his primary areas of study. Paul A. Johnson is interested in Nonlinear acoustics, which is a branch of Nonlinear system. His study in the field of Discrete element method is also linked to topics like Granular layer.
Within one scientific family, he focuses on topics pertaining to Optics under Acoustics, and may sometimes address concerns connected to Nondestructive testing and Energy. His Slip research is multidisciplinary, incorporating perspectives in Shear, Geotechnical engineering, Waveform and Subduction. His studies deal with areas such as Wave propagation, Mesoscopic physics, Attenuation and Classical mechanics as well as Elasticity.
The scientist’s investigation covers issues in Artificial intelligence, Slip, Seismology, Machine learning and Mechanics. His Artificial intelligence research is multidisciplinary, incorporating elements of Reduction, Seismometer, Noise and Pattern recognition. His work carried out in the field of Slip brings together such families of science as Subduction, Tectonics, Waveform and Geometry.
Seismology and Slipping are frequently intertwined in his study. His Mechanics research incorporates themes from Granular material, Relaxation, Finite element method and Nonlinear system. His Nonlinear system research is multidisciplinary, relying on both Acoustics, Ultrasonic sensor, Nondestructive testing and Softening.
His primary scientific interests are in Artificial intelligence, Seismology, Machine learning, Slip and Mechanics. Paul A. Johnson has included themes like Waveform and Shear stress in his Seismology study. His biological study spans a wide range of topics, including Subduction, Tectonics, Seismic energy and Predictability.
In the field of Mechanics, his study on Discrete element method overlaps with subjects such as Granular layer. His Wave propagation research includes elements of Ultrasonic sensor and Nonlinear system. His studies in Nonlinear system integrate themes in fields like Stiffness and Contact mechanics.
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Nonlinear Mesoscopic Elasticity: Evidence for a New Class of Materials
Robert A. Guyer;Paul A. Johnson.
Physics Today (1999)
Nonlinear Elastic Wave Spectroscopy (NEWS) Techniques to Discern Material Damage, Part I: Nonlinear Wave Modulation Spectroscopy (NWMS)
K. E.-A. Van Den Abeele;P. A. Johnson;A. Sutin.
Research in Nondestructive Evaluation (2000)
Dynamic nonlinear elasticity in geomaterials
L. A. Ostrovsky;P. A. Johnson.
Rivista Del Nuovo Cimento (2001)
Elastic-wave stimulation of oil production; a review of methods and results
Igor A. Beresnev;Paul A. Johnson.
Oncolytic herpes simplex virus vector with enhanced MHC class I presentation and tumor cell killing.
Tomoki Todo;Robert L. Martuza;Samuel D. Rabkin;Paul A. Johnson.
Proceedings of the National Academy of Sciences of the United States of America (2001)
Nonlinear dynamics, granular media and dynamic earthquake triggering
Paul A. Johnson;Xiaoping Jia.
Nonlinear Elastic Wave Spectroscopy (NEWS) Techniques to Discern Material Damage, Part II: Single-Mode Nonlinear Resonance Acoustic Spectroscopy
K. E.-A. Van Den Abeele;J. Carmeliet;J. A. Ten Cate;P. A. Johnson.
Research in Nondestructive Evaluation (2000)
Micro-damage diagnostics using Nonlinear Elastic Wave Spectroscopy (NEWS)
Koen E-A. Van Den Abeele;Alexander Sutin;Jan Carmeliet;Paul A. Johnson.
Ndt & E International (2001)
Nonlinear ground-motion amplification by sediments during the 1994 Northridge earthquake
Edward H. Field;Paul A. Johnson;Paul A. Johnson;Igor A. Beresnev;Yuehua Zeng.
Slow dynamics and anomalous nonlinear fast dynamics in diverse solids.
Paul Johnson;Alexander Sutin.
Journal of the Acoustical Society of America (2005)
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