Conference Presentations and Other Publications

Remark: Researchers working in Thailand in bold type. Presented by first author unless otherwise indicated

        
            
2014

D. Ruffolo, Research in Thailand Using Neutron Monitors to Study Solar Storms and Solar Effects on Our Space Radiation Environment (International Nuclear Science and Technology Conference 2014, Bangkok, August, 2014)

2014

D. Ruffolo, A. Sáiz, P. S. Mangeard, W. Mitthumsiri, A. Seripienlert, and U. Tortermpun, Spectral Variations of Cosmic Rays (Invited talk, Asian-Pacific Regional IAU Meeting, Daejeon, South Korea, August, 2014)

2014 P. S. Mangeard, D. Ruffolo, A. Sáiz, N. Kamyan, S. Madlee, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. Clem, P. Evenson, K. Munakata, Variations in the Neutron Time Delay Distribution at the Princess Sirindhorn Neutron Monitor (Asia-Oceania Geosciences Society 11th Annual Meeting, Sapporo, Japan, July, 2014)
2014 P. S. Mangeard, D. Ruffolo, A. Sáiz, W. Nuntiyakul, J. W. Bieber, P. Evenson, R. Pyle, M. L. Duldig, and J. E. Humble, Relationship Between the Neutron Time Delay Distribution and the Rigidity Spectrum of Primary Cosmic Rays (Asia-Oceania Geosciences Society 11th Annual Meeting, Sapporo, Japan, August, 2014)
2014

J. Tessein, W. H. Matthaeus, M. Wan, and D. Ruffolo, Association of Suprathermal Particles with Coherent Structures and Shocks (SHINE Conference 2014, Telluride, Colorado, June, 2014)

2014 P. Subedi, W. Sonsrettee, W. H. Matthaeus, D. J. Ruffolo, M. Wan, and D. Montgomery, Charged Particle Diffusion in Isotropic Random Static Magnetic Fields (SHINE Conference 2014, Telluride, Colorado, June, 2014)
2014 W. Nuntiyakul, D. Ruffolo, and P. Evenson, Analysis of Data from a Ship-Borne Neutron Monitor (Siam Physics Congress 2014, Nakhon Ratchasima, March, 2014)
2014 A. Seripienlert, A. Sáiz, P. Tooprakai, D. Ruffolo, and W. H. Matthaeus, Speed Limit of Solar Energetic Particles and Implications for Onset Time Analysis (Siam Physics Congress 2014, Nakhon Ratchasima, March, 2014)
2013 D. J. Ruffolo, A. P. Snodin, S. Oughton, S. Servidio, and W. H. Matthaeus, Analytic Theory and Numerical Study of the Magnetic Field Line Random Walk in Reduced Magnetohydrodynamic Turbulence (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 K. Malakit, M. A. Shay, P. Cassak, and D. J. Ruffolo, A New Electric Field in Asymmetric Magnetic Reconnection (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 W. Sonsrettee, P. Wongpan, D. J. Ruffolo, W. H. Matthaeus, P. Chuychai, and G. Rowlands, Field Line Random Walk in Isotropic Magnetic Turbulence up to Infinite Kubo Number (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 W. H. Matthaeus, S. Servidio, M. Wan, D. J. Ruffolo, A. F. Rappazzo, and S. Oughton, Spatial Transport of Magnetic Flux Surfaces in Strongly Anisotropic Turbulence (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 P. Subedi, W. Sonsrettee, W. H. Matthaeus, D. J. Ruffolo, M. Wan, and D. Montgomery, Charged Particle Diffusion in Isotropic Random Static Magnetic Fields (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 J. Tessein, W. H. Matthaeus, M. Wan, K. Osman, D. J. Ruffolo, and J. Giacalone, Association of Suprathermal Particles with Coherent Structures and Shocks (2013 Fall Meeting of the American Geophysical Union, San Francisco, December, 2013)
2013 D. Ruffolo, Space Weather and Energetic Particles from the Sun (Solicited presentation, 1st COSPAR Symposium, Bangkok, November, 2013)
2013 D. Ruffolo and A. Sáiz, Monte Carlo Simulation of a Neutron Monitor (Solicited presentation, 1st COSPAR Symposium, Bangkok, November, 2013)
2013 K. Malakit, M. Shay, P. Cassak, and D. Ruffolo, A New Electric Field in Asymmetric Magnetic Reconnection (1st COSPAR Symposium, Bangkok, November, 2013)
2013

S. Madlee, T. Chittakam, D. Ruffolo, and A. Sáiz, Calibration of Bare Counter to Neutron Monitor Count Ratio Using Monte Carlo Simulation (1st COSPAR Symposium, Bangkok, November, 2013)

2013 P. Tooprakai, A. Seripienlert, D. Ruffolo, W. H. Matthaeus and P. Chuychai, Dropouts of Solar Energetic Particles in Two-Component Models of Interplanetary Magnetic Turbulence (1st COSPAR Symposium, Bangkok, November, 2013)
2013 W. Sonsrettee, P. Wongpan, D. Ruffolo, W.H. Matthaeus, P. Chuychai and G. Rowlands, Field Line Random Walk in Isotropic Magnetic Turbulence up to Infinite Kubo Number (1st COSPAR Symposium, Bangkok, November, 2013)
2013 N. Aiemsa-ad, T. Khumlumlert, D. Ruffolo and A. Sáiz, Simulation of a Calibration Neutron Monitor Using Monte Carlo (1st COSPAR Symposium, Bangkok, November, 2013)
2013 W. Nuntiyakul, D. Ruffolo, and P. Evenson, Analysis of Data from a Ship-Borne Neutron Monitor (1st COSPAR Symposium, Bangkok, November, 2013)
2013 A. Seripienlert, P. Tooprakai, D. Ruffolo, W. H. Matthaeus and P. Chuychai, Dropouts of Solar Energetic Particles in Two-Component Models of Interplanetary Magnetic Turbulence (39th Congress on Science and Technology in Thailand, Bangkok, October, 2013)
2013 K. Malakit, M. Shay, P. Cassak, and D. Ruffolo, A New Electric Field in Asymmetric Magnetic Reconnection (39th Congress on Science and Technology in Thailand, Bangkok, October, 2013)
2013 S. Wannawichian, J. Clarke, D. Ruffolo, N. Jitaree, and T. Promfu, Io’s Magnetic Footprint Brightness Under Controlled of Volcanic Activities on Io (39th Congress on Science and Technology in Thailand, Bangkok, October, 2013)
2013 K. Malakit, M. Shay, P. Cassak, and D. Ruffolo, A New Electric Field in Asymmetric Magnetic Reconnection (GEM Summer Workshop 2013, Aspen, June, 2013)
2013 D. Ruffolo, Neutron Monitor Observations Concerning Space Weather Effects (Siam Physics Congress 2013, Chiang Mai, March, 2013)
2013 K. Malakit, M. Shay, P. Cassak, M. Kuznetsova, and D. Ruffolo, Larmor Electric Field: A Kinetic Physics Signature for Collisionless Asymmetric Reconnection (Siam Physics Congress 2013, Chiang Mai, March, 2013)
2012 D. Ruffolo, T. Pianpanit, P. Chuychai, W. H. Matthaeus, and G. Qin, Directions of Improvement in the Theory of Perpendicular Diffusion of Energetic Charged Particles (2012 Fall Meeting of the American Geophysical Union, San Francisco, December, 2012)
2012 S. Servidio, W. H. Matthaeus, P. Dmitruk, F. Rappazzo, V. Carbone, S. Oughton, M. Wan, and D. J. Ruffolo, Magnetic Flux Surfaces in Anisotropic Three Dimensional Complex Fields (2012 Fall Meeting of the American Geophysical Union, San Francisco, December, 2012)
2012 K. Malakit, M. A. Shay, P. Cassak, P. Wu, and D. J. Ruffolo, Kinetic Signatures of the Diffusion Region during Asymmetric Magnetic Reconnection: Electric Fields (2012 Fall Meeting of the American Geophysical Union, San Francisco, December, 2012)
2012 A. F. Rappazzo, W. H. Matthaeus, D. J. Ruffolo, S. Servidio, and M. C. Velli, Interchange Reconnection in a Turbulent Corona (2012 Fall Meeting of the American Geophysical Union, San Francisco, December, 2012)
2012 C. Wikee, P. Chuychai, D. Ruffolo, A. Eungwanichayapant, and W. H. Matthaeus, Separation of Charged Particles to Their Initial Magnetic Field Lines in the Simple Turbulent Magnetic Field Model (1st Mae Fah Luang International Conference, Chiang Rai, November, 2012)
2012 P. Sommart, A. Saiz, D. Ruffolo, and P. Evenson, Acceleration and Transport of Solar Electrons during the 14th August 1982 Event (38th Congress on Science and Technology in Thailand, Chiang Mai, October, 2012)
2012 C. Wikee, P. Chuychai, A. Eungwanichayapant, D. Ruffolo, and W. H. Matthaeus, The Effect of Initial Pitch Angles of Charged Particles on their Separation in the Simple 2D+Slab Magnetic Field Model (38th Congress on Science and Technology in Thailand, Chiang Mai, October, 2012)
2012 D. Ruffolo, T. Pianpanit, W. H. Matthaeus, and P. Chuychai, Random Ballistic Interpretation of Nonlinear Guiding Center Theory (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 D. Ruffolo, A. Sáiz,  J. Bieber, J. Clem, P. Evenson, and R. Pyle, Relativistic Solar Protons on 2005 January 20: From the Acceleration Time Profile near the Sun to an Intense Beam near Earth and the Distribution of Radiation at Earth’s Polar Regions (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Variations in the Neutron Time Delay Distribution at the Princess Sirindhorn Neutron Monitor (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 A. Snodin, D. Ruffolo, and W. Matthaeus, Evolution of the Magnetic Field Line Perpendicular Diffusion Coefficient and Non-Gaussian Statistics (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 A. Seripienlert, P. Tooprakai, D. Ruffolo, P. Chuychai, and W. Matthaeus, Collimation of Solar Particles Due to Two-Dimensional Turbulent Structure (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 P. Chuychai, D. Ruffolo, C. Wikee, A. Seripienlert, and W. Matthaeus, Separation of charged particles from their turbulent magnetic field lines at early times (AOGS - AGU (WPGM) 2012 Joint Assembly, Singapore, August, 2012)
2012 P. A. Evenson, J. Bieber, J. Clem, T. Kuwabara, R. Pyle, D. Ruffolo, and A. Sáiz, The GaGLEs of Winter 2012 (2012 SHINE Workshop, Hawaii, June, 2012)
2012

P. A. Evenson, J. Bieber, J. Clem, T. Gaisser, T. Kuwabara, R. Pyle, D. Ruffolo, A. Sáiz, and S. Tilav, The Ground Level Enhancement of May 17, 2012 (2012 SHINE Workshop, Hawaii, June, 2012)

2012 P. Tooprakai, A. Seripienlert (presenter), D. Ruffolo, and W. H. Matthaeus, Simulation of 2D+Slab Magnetic Turbulence and Particle Transport Using a Spherical Harmonics Expansion (16th International Annual Symposium on Computational Science and Engineering, Chiang Mai, May, 2012)
2012 C. Wikee, P. Chuychai, D. Ruffolo, and W. H. Matthaeus, The Effect of the Initial Pitch Angles of Charged Particles to the Separation on the Turbulent Magnetic Field Lines (16th International Annual Symposium on Computational Science and Engineering, Chiang Mai, May, 2012)
2012 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Variations in the Neutron Time Delay Distribution at the Princess Sirindhorn Neutron Monitor (Siam Physics Congress 2012, Ayutthaya, May, 2012)
2012 A. Snodin and D. Ruffolo,  The Magnetic Field Line Perpendicular Diffusion Coefficient and Non-Gaussian Statistics (Siam Physics Congress 2012, Ayutthaya, May, 2012)
2012 W. Krittinatham, D. Ruffolo, and J. W. Bieber, Simulation of Particle Orbits in a Model of Expanding Interplanetary Magnetic Flux Ropes (Siam Physics Congress 2012, Ayutthaya, May, 2012)
2012 L. Kawinwanichakij, A. Sáiz, and D. Ruffolo, Monte Carlo Investigation of the Time Delay Distribution in a Neutron Monitor (Siam Physics Congress 2012, Ayutthaya, May, 2012)
2012 D. Ruffolo, A. Sáiz, J. W. Bieber, P. Evenson, and R. Pyle, M. Rujiwarodom, P. Tooprakai, M. Wechakama, and T. Khumlumlert, Precision Modeling of Solar Energetic Particle Transport (1st Asia-Oceania Space Weather Alliance Workshop, Chiang Mai, February, 2012)
2012 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Neutron Time Delay Analysis for the Princess Sirindhorn Neutron Monitor (1st Asia-Oceania Space Weather Alliance Workshop, Chiang Mai, February, 2012)
2012 W. Krittinatham, D. J. Ruffolo, and J. W. Bieber, Model of Expanding Interplanetary Magnetic Flux Rope and Simulation of Particle Orbits (1st Asia-Oceania Space Weather Alliance Workshop, Chiang Mai, February, 2012)
2012

A. Seripienlert, P. Tooprakai, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Beaming of Solar Particles by Two-Dimensional Turbulent Structure (1st Asia-Oceania Space Weather Alliance Workshop, Chiang Mai, February, 2012)

2011 W. Krittinatham, D. J. Ruffolo, and J. W. Bieber, Adiabatic Deceleration of Cosmic Rays during Interplanetary Magnetic Flux Rope Expansion (2011 Fall Meeting of the American Geophysical Union, San Francisco, December, 2011)
2011 P. Tooprakai, D. J. Ruffolo, and W. H. Matthaeus, Simulation of Solar Particle Dropouts in Slab+2D Spherical Harmonic Magnetic Fields (2011 Fall Meeting of the American Geophysical Union, San Francisco, December, 2011)
2011 A. F. Rappazzo, W. H. Matthaeus, D. J. Ruffolo, and S. Oughton, Field Line Random Walk in Reduced MHD Models of the Solar Corona (2011 Fall Meeting of the American Geophysical Union, San Francisco, December, 2011)
2011 W. H. Matthaeus, A. Greco, S. Servidio, M. Wan., K. Osman, and D. J. Ruffolo, The Flux Tube Paradigm and Its Role in MHD Turbulence in the Solar Atmosphere (2011 Fall Meeting of the American Geophysical Union, San Francisco, December, 2011)
2011 D. Ruffolo, Calibration of the Princess Sirindhorn Neutron Monitor at Doi Inthanon (Invited talk, 37th Congress on Science and Technology of Thailand, Bangkok, October, 2011)
2011 C. Buachan, D. Ruffolo, A. Sáiz, A. Seripienlert, and W. H. Matthaeus, The Effect of Magnetic Turbulence Structure on the Parallel Transport of High Energy (37th Congress on Science and Technology of Thailand, Bangkok, October, 2011)
2011 A. Snodin and D. Ruffolo, Unified Model for Bohm Diffusion in 2D+Slab Turbulence (37th Congress on Science and Technology of Thailand, Bangkok, October, 2011)
2011 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Neutron Time Delay Analysis for the Princess Sirindhorn Neutron Monitor (37th Congress on Science and Technology of Thailand, Bangkok, October, 2011)
2011 L. Kawinwanichakij, A. Sáiz, and D. Ruffolo, Monte Carlo Simulations of Neutron Time Delay Distributions in a Neutron Monitor (37th Congress on Science and Technology of Thailand, Bangkok, October, 2011)
2011 D. Ruffolo, A. Sáiz (presenter), N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Neutron Time Delay Analysis for the Princess Sirindhorn Neutron Monitor at Doi Inthanon, Thailand (32nd International Cosmic Ray Conference, Beijing, August, 2011)
2011 A. Sáiz, D. Ruffolo,  J. W. Bieber, and P. Evenson, Modeling Relativistic Solar Protons in the Inner Solar System During an Extreme Event (32nd International Cosmic Ray Conference, Beijing, August, 2011)
2011 T. Yeeram, D. Ruffolo, A. Sáiz, N. Kamyan, and T. Naturo, Effects of Coronal Hole Morphology and High Speed Solar Wind Streams on Diurnal Variations in Galactic Cosmic Rays (32nd International Cosmic Ray Conference, Beijing, August, 2011)
2011 H. Krüger, H. Moraal, D. Ruffolo, A. Sáiz, T. Nutaro, N. Kamyan, W. Nuntiyakul, B. Heber, and C. Steigies, Progress Report on the Intercalibration of the World’s Neutron Monitors (32nd International Cosmic Ray Conference, Beijing, August, 2011)
2011 D. Ruffolo, Solar Activity and Effects on Human Activity (Plenary Talk at the 11th Asian-Pacific Regional IAU Meeting, Chiang Mai, July, 2011)
2011 L. Kawinwanichakij, A. Sáiz, and D. Ruffolo, Monte Carlo Simulations of Neutron Time Delay Distributions in a Neutron Monitor (11th Asian-Pacific Regional IAU Meeting, Chiang Mai, July, 2011)
2011 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Neutron Time Delay Analysis for the Princess Sirindhorn Neutron Monitor (11th Asian-Pacific Regional IAU Meeting, Chiang Mai, July, 2011)
2011 T. Yeeram, D. Ruffolo, A. Sáiz, N. Kamyan, and T. Naturo, Effects of Corotating Solar Wind Structures on 27-Day Variations in Galactic Cosmic Rays Observed by the Princess Sirindhorn Neutron Monitor (11th Asian-Pacific Regional IAU Meeting, Chiang Mai, July, 2011)
2011 P. Tooprakai, W. H. Matthaeus, A. Seripienlert, D. Ruffolo, and P. Chuychai, Collimation of Particle Beams by the Structure of Two-Dimensional Magnetic Turbulence (11th Asian-Pacific Regional IAU Meeting, Chiang Mai, July, 2011)
2011 D. Ruffolo, T. Pianpanit, P. Chuychai, W. H. Matthaeus, and G. Qin, On the Assumptions of Nonlinear Guiding Center Theory (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Neutron Time Delay Analysis at the Princess Sirindhorn Neutron Monitor (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 P. Chuychai, D. Ruffolo, C. Wikee, and W. H. Matthaeus, Effect of Reduced Dimensionality of the Magnetic Field Fluctuations on the Cross-Field Motion of Charged Particles (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 P. Tooprakai, A. Seripienlert, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Collimation of Particle Beams by the Structure of Two-Dimensional Magnetic Turbulence (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 W. Krittinatham, D. Ruffolo, and J. Bieber, Recovery of Galactic Cosmic Ray Intensity after a Forbush Decrease in an interplanetary magnetic flux rope (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 M. C. Ghilea, D. Ruffolo, P. Chuychai, W. Sonsrettee, A. Seripienlert, and W. H. Matthaeus, Magnetic field line random walk for disturbed flux surfaces: Trapping effects and two routes for Bohm diffusion (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 T. Yeeram, D. Ruffolo, A. Sáiz, N. Kamyan, and T. Naturo, Effects of Corotating Solar Wind Structures on 27-Day Variations in Galactic Cosmic Rays Observed by the Princess Sirindhorn Neutron Monitor (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 N. Wichailukkana, D. Ruffolo, C. Pongkitivanichkul, and N. Chaiworawitsakul, Verifying a Theory of Particle Transport in Quasi-1D Turbulence (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2011 P. Puvacharoonkul, A. Sáiz, N. Kamyan, and D. Ruffolo, Calculating Ionization Due to Cosmic Rays in Earth’s Atmosphere (Siam Physics Congress and Thai National Astronomy Meeting 2011, Pattaya, March, 2011)
2010 D. Ruffolo, A. Sáiz,  J. W. Bieber, J. Clem, P. Evenson, and R. Pyle, Transport Modeling and Injection time Profile of Relativistic Solar Protons on 2005 January 20 (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 A. Sáiz, D. Ruffolo,  J. W. Bieber, and P. Evenson, Modeling Relativistic Solar Protons in the Inner Solar System During the 2005 January 20 Event (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 P. Chuychai, D. Ruffolo, and W. H. Matthaeus, Separation of charged particles from magnetic field lines in two-component magnetic turbulence (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 P. Tooprakai, A. Seripienlert, D. Ruffolo (presenter), P. Chuychai, and W. H. Matthaeus, Collimation of Particle Beams by the Structure of Two-Dimensional Magnetic Turbulence (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 W. Krittinatham, D. Ruffolo (presenter), and J. Bieber, Spatially dependent turbulence and particle diffusion in an interplanetary magnetic flux rope (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 R. Kittinaradorn, D. Ruffolo (presenter), and W. H. Matthaeus, Solar Moss Patterns: MHD Turbulence, Reconnection Heating in Coronal Loops, and Magnetic Connection to the Footpoints (2010 Fall Meeting of the American Geophysical Union, San Francisco, December, 2010)
2010 D. Ruffolo, A. Sáiz, N. Kamyan, T. Naturo, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Diurnal Variation of Multiplicity in the Princess Sirindhorn Neutron Monitor (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 A. Sáiz, D. Ruffolo, N. Kamyan, T. Yeeram, and T. Naturo, Effects of corotating interaction regions on the diurnal anisotropy of galactic cosmic rays (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 W. Krittinatham, D. Ruffolo, and J. Bieber, Model of spatially dependent turbulence in an interplanetary magnetic flux rope (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 P. Chuychai, D. Ruffolo, and W. H. Matthaeus, Separation of charged particles from magnetic field lines in 2D+slab turbulence (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 M. C. Ghilea, D. Ruffolo, P. Chuychai, A. Seripienlert, and W. H. Matthaeus, Magnetic field line random walk for perturbed flux surfaces: trapping effects and two routes for Bohm diffusion (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 C. Pongkitivanichkul, D. Ruffolo, and W. H. Matthaeus, Perpendicular subdiffusion and diffusion of energetic charged particles due to parallel Brownian motion (36th Congress on Science and Technology of Thailand, Bangkok, October, 2010)
2010 M. Rujiwarodom, A. Sáiz, D. Ruffolo, N. Kamyan, T. Nutaro, H. Krüger, and H. Moraal, Temperature Effects on 10BF3 and 3He Neutron Monitor Counter Tubes at 16.8 GV Cutoff Rigidity (European Geophysical Union General Assembly 2010, Vienna, Austria, May, 2010)
2010 T. Bovornratanaraks, K. Kotmool, K. Yoodee, M. I. McMahon, and D. Ruffolo, High Pressure Structural Studies of AgInTe2 (Journal of Physics: Conference Series 215 (2010) 012008)
2010 A. Sáiz, D. Ruffolo, J. W. Bieber, and P. Evenson, On the Estimation of Solar Particle Fluence at Jupiter's Orbit (14th Annual Symposium on Computational Science and Engineering, Chiang Rai, March, 2010)
2010 W. Krittinatham, D. Ruffolo, and J. W. Bieber, Diffusion of Galactic Cosmic Rays in an Interplanetary Magnetic Flux Rope (14th Annual Symposium on Computational Science and Engineering, Chiang Rai, March, 2010)
2010 A. Seripienlert, P. Tooprakai, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Collimation of Particle Beams by Two-Dimensional Turbulent Structure (14th Annual Symposium on Computational Science and Engineering, Chiang Rai, March, 2010)
2010 C. Buachan, D. Ruffolo, A. Sáiz, A. Seripienlert, and W. H. Matthaeus, Effect of Magnetic Turbulence Structure on the Parallel Transport of High Energy Particles (14th Annual Symposium on Computational Science and Engineering, Chiang Rai, March, 2010)
2010 N. Kamyan, D. Ruffolo, A. Sáiz, and P. Tooprakai, Secondary Neutrons from Cosmic Rays in Earth’s Atmosphere above the Princess Sirindhorn Neutron Monitor (14th Annual Symposium on Computational Science and Engineering, Chiang Rai, March, 2010)
2010 A. Sáiz, D. Ruffolo, J. W. Bieber, and P. Evenson, On the Estimation of Solar Particle Fluence at Jupiter's Orbit (2nd Southeast Asian Astronomy Network Meeting, Manila, the Philippines, February, 2010)
2009 A. Sáiz, D. J. Ruffolo, J. W. Bieber, and P. A. Evenson, Effects of a Radial Dependence in Transport Parameters on the Estimation of Solar Particle Fluence at Jupiter's Orbit (2009 Fall Meeting of the American Geophysical Union, San Francisco, December, 2009)
2009 W. Krittinatham and D. Ruffolo, Drift Orbits of Energetic Particles in an Interplanetary Magnetic Flux Rope ( 35th Congress on Science and Technology of Thailand, Bangsaen, October, 2009)
2009 A. Seripienlert, P. Tooprakai, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Collimation of Particle Beams by Two-Dimensional Turbulent Structure (35th Congress on Science and Technology of Thailand, Bangsaen, October, 2009)
2009 C. Buachan, D. Ruffolo, A. Sáiz, A. Seripienlert, and W. H. Matthaeus, The Effect of Magnetic Turbulence Structure on the Parallel Transport of High Energy Particles (35th Congress on Science and Technology of Thailand, Bangsaen, October, 2009)
2009 D. Ruffolo, High Energy Physics and Its Relation to Astrophysics (Invited talk, 4th Siam Symposium on General Relativity, High Energy Physics, and Cosmology, Phitsanulok, July, 2009)
2009 A. Seripienlert, P. Tooprakai, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Collimation of Particle Beams by Two-Dimensional Turbulent Structure (4th Siam Symposium on General Relativity, High Energy Physics, and Cosmology, Phitsanulok, July, 2009)
2009 W. Krittinatham and D. Ruffolo, Drift Motions of Energetic Protons in an Interplanetary Magnetic Cloud (13th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2009)
2009  A. Seripienlert, D. Ruffolo, W. H. Matthaeus, and P. Chuychai, Local Trapping Boundaries, Current Sheets, and Their Roles for Dropout Features (13th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2009)
2009  P. Wongpan, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Field Line Random Walk Simulation in Arbitrarily Stretched Isotropic Turbulence         (13th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2009)
2009 P. Chuychai, W. H. Matthaeus, P. Dmitruk, and D. Ruffolo, Diffusion of Charged Particles in Isotropic Magnetic Turbulence (13th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2009)
2009  D. Ruffolo, A. Sáiz, N. Kamyan, T. Naturo, S. Sumran, C. Chaiwattana, N. Gasiprong, C. Channok, M. Rujiwarodom, P. Tooprakai, B. Asavapibhop, J. W. Bieber, J. M. Clem, P. Evenson, and K. Munakata, Effect of Corotating Interaction Regions on the Diurnal Anisotropy of Galactic Cosmic Rays (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009   A. Sáiz, D. Ruffolo, J. W. Bieber, and P. Evenson, Effects of a Radial Dependence in Transport Parameters on the Estimation of Solar Particle Fluence at Jupiter's Orbit (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009 W. Krittinatham and D. Ruffolo, Drift Motions of Energetic Protons in an Interplanetary Magnetic Cloud (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009  A. Seripienlert, D. Ruffolo, W. H. Matthaeus, and P. Chuychai, Local Trapping Boundaries, Current Sheets, and Their Roles for Dropout Features (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009 P. Wongpan, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Field Line Random Walk Simulation in Arbitrarily Stretched Isotropic Turbulence (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009 C. Pongkitivanichkul, D. Ruffolo, and W. H. Matthaeus, Perpendicular Subdiffusion and Diffusion of Energetic Charged Particles Due to Parallel Brownian Motion (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009 M. Rujiwarodom, D. Ruffolo, A. Sáiz, and N. Kamyan, Temperature Effects on Count Rate of the Princess Sirindhorn Neutron Monitor at Doi Inthanon (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2009 P. Chuychai, W. H. Matthaeus, P. Dmitruk, and D. Ruffolo, Diffusion of Charged Particles in Three-Dimensional Isotropic Magnetic Turbulence (Siam Physics Congress and Thai National Astronomy Meeting 2009, Cha-am, March, 2009)
2008 J. W. Bieber, P. Chuychai, W. H. Matthaeus, J. Minnie, D. Ruffolo, and A. Shalchi, Diffusion Confusion: Field Line Random Walk in Magnetic Turbulence (Fall 2008 AGU Meeting, San Francisco, December, 2008)
2008 D. Ruffolo, P. Chuychai, P. Wongpan, J. Minnie, J. W. Bieber, and W. H. Matthaeus, Perpendicular Transport of Energetic Charged Particles in Nonaxisymmetric Two-Component Magnetic Turbulence (34th Congress on Science and Technology of Thailand, Bangkok, October, 2008)
2008 W. Krittinatham, J. W. Bieber, and D. Ruffolo, Calculating the Perpendicular Diffusion Coefficient of Particles in a Magnetic Cloud with Nonlinear Guiding Center Theory (34th Congress on Science and Technology of Thailand, Bangkok, October, 2008)
2008 A. Seripienlert, D. Ruffolo, W. H. Matthaeus, and P. Chuychai, Trapping Boundaries as Distinguished from Current Sheets in Magnetic Turbulence (34th Congress on Science and Technology of Thailand, Bangkok, October, 2008)
2008 P. Wongpan, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Field Line Random Walk Simulation in Arbitrarily Stretched Isotropic Turbulence (34th Congress on Science and Technology of Thailand, Bangkok, October, 2008)

2008 J. W. Bieber, J. Clem, P. Evenson, R. Pyle, D. Ruffolo, A. Sáiz, and M. Wechakama, Solar Particle Transport in Extreme Events: Lessons from Cycle 23 (submitted to 37th COSPAR Scientific Assembly, July, 2008, Montreal, Canada)
2008 D. Ruffolo, A. Sáiz, J. W. Bieber, P. Evenson, R. Pyle, P. Chuychai, and W. H. Matthaeus, Modeling the Transport of Solar Energetic Particles to 1 AU (Invited talk, SHINE 2008 workshop, Midway, Utah, June, 2008)
2008 D. Ruffolo, P. Chuychai, P. Wongpan, J. Minnie, J. W. Bieber, and W. H. Matthaeus, Perpendicular transport of energetic charged particles in nonaxisymmetric two-component magnetic turbulence (submitted to SHINE 2008 workshop, Midway, Utah, June, 2008)
2008 D. Ruffolo, J. W. Bieber, J. Clem, P. Evenson, R. Pyle, A. Sáiz, and M. Wechakama, Relativistic Solar protons on 2005 January 20 and 2006 December 13 (submitted to SHINE 2008 workshop, Midway, Utah, June, 2008)
2008 D. Ruffolo, P. Wongpan, R. Kittinaradorn, P. Chuychai, and W. H. Matthaeus, Classification of Magnetic Field Line Random Walks (accepted by 12th Annual National Symposium on Computational Science and Engineering, Ubon Ratchathani, March, 2008)
2008 D. Ruffolo, P. Chuychai, P. Wongpan (presenter), J. Minnie, J. W. Bieber, and W. H. Matthaeus, Perpendicular transport of energetic charged particles in nonaxisymmetric two-component magnetic turbulence (12th Annual National Symposium on Computational Science and Engineering, Ubon Ratchathani, March, 2008)
2008 A. Sáiz, D. Ruffolo, M. Wechakama, J. W. Bieber, J. Clem, P. Evenson, and R. Pyle, Interplanetary transport of relativistic protons during the last two ground level enhancements of the 23rd solar cycle (12th Annual National Symposium on Computational Science and Engineering, Ubon Ratchathani, March, 2008)
2008 A. Seripienlert, P. Tooprakai, R. Kittinaradorn, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Simulation of Particle Trajectories in Magnetic Turbulence in the Solar Wind (12th Annual National Symposium on Computational Science and Engineering, Ubon Ratchathani, March, 2008)
2008 C. Channok and D. Ruffolo, Spatial Profiles of Solar Storm Particles during Finite-Time Shock Acceleration (12th Annual National Symposium on Computational Science and Engineering, Ubon Ratchathani, March, 2008)
2008 D. Ruffolo, P. Wongpan, R. Kittinaradorn, P. Chuychai, and W. H. Matthaeus, Classification of Magnetic Field Line Random Walks (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 D. Ruffolo, P. Chuychai, P. Wongpan (presenter), J. Minnie, J. W. Bieber, and W. H. Matthaeus, Perpendicular transport of energetic charged particles in nonaxisymmetric two-component magnetic turbulence (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 A. Sáiz, D. Ruffolo, M. Wechakama, J. W. Bieber, J. Clem, P. Evenson, and R. Pyle, Interplanetary transport of relativistic protons during the last two ground level enhancements of the 23rd solar cycle (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 A. Seripienlert, P. Tooprakai, R. Kittinaradorn, D. Ruffolo, P. Chuychai, and W. H. Matthaeus, Simulation of Particle Trajectories in Magnetic Turbulence in the Solar Wind (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 C. Channok and D. Ruffolo, Spatial Profiles of Solar Storm Particles during Finite-Time Shock Acceleration (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 T. Nutaro, S. Sumran, C. Chaiwattana, D. Ruffolo, A. Sáiz, N. Kamyan, W. Sonsrettee, M. Rujiwarodom, P. Tooprakai, and C. Changchutoe, Initial Observations of Cosmic Rays by the Princess Sirindhorn Neutron Monitor at a High Cutoff Rigidity in Thailand: Part I (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 T. Nutaro, S. Sumran, C. Chaiwattana, D. Ruffolo, A. Sáiz, N. Kamyan, W. Sonsrettee, M. Rujiwarodom (presenter), P. Tooprakai, and C. Changchutoe, Initial Observations of Cosmic Rays by the Princess Sirindhorn Neutron Monitor at a High Cutoff Rigidity in Thailand: Part II (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Ratchasima, March, 2008)
2008 A. Sáiz, D. Ruffolo, M. Wechakama, J. W. Bieber, J. Clem, P. Evenson, and R. Pyle, Interplanetary transport of relativistic protons during the last two ground level enhancements of the 23rd solar cycle (2nd Korea-Thailand Joint Workshop on Astronomy and Astrophysics, Seoul, Korea, February, 2008)
2008 T. Nutaro, S. Sumran, C. Chaiwattana, D. Ruffolo, A. Sáiz, N. Kamyan, W. Sonsrettee, M. Rujiwarodom, P. Tooprakai, and C. Changchutoe, Initial Observations of Cosmic Rays by the Princess Sirindhorn Neutron Monitor at a High Cutoff Rigidity in Thailand (2nd Korea-Thailand Joint Workshop on Astronomy and Astrophysics, Seoul, Korea, February, 2008)
2007 P. Tooprakai, P. Chuychai (presenter) J. Minnie, D. Ruffolo, J. W. Bieber, and W. H. Matthaeus, Computation of Particle Trapping in a Gaussian 2D+Slab Magnetic Field  (submitted to Fall 2007 Meeting of the American Geophysical Union, San Francisco, December, 2007)
2007 J. W. Bieber, J. Clem, P. Evenson, T. Kuwabara, R. Pyle, D. Ruffolo, and A. Sáiz, Neutron Monitors as a Tool for Specifying Solar Energetic Particle Effects on Earth and in Near-Earth Space (submitted to Fall 2007 Meeting of the American Geophysical Union, San Francisco, December, 2007)
2007

 

D. Ruffolo, P. Wongpan, R. Kittinaradorn, P. Chuychai, and W. H. Matthaeus, Magnetic Field Line Random Walks: Exponential Separation, Quasilinear Diffusion, Percolation, and Bohm Diffusion (accepted for 33rd Congress on Science and Technology of Thailand, Nakorn Si Thammarat, October, 2007)

2007

 

D. Ruffolo, A. Sáiz, N. Kamyan, W. Sonsrettee, T. Nutaro, S. Sumran, C. Chaiwattana, M. Rujiwarodom, P. Tooprakai, and C. Changchutoe, Installation of the Princess Sirindhorn Neutron Monitor at a High Cutoff Rigidity in Thailand  ( accepted for33rd Congress on Science and Technology of Thailand, Nakorn Si Thammarat, October, 2007)

2007

 

R. Kittinaradorn, D. Ruffolo, and W. H. Matthaeus, Origin of “Moss” Patterns in the Solar Corona: Turbulence Topology, Heating by Reconnection, and Magnetic Connection to the Transition Region (accepted for 33rd Congress on Science and Technology of Thailand, Nakorn Si Thammarat, October, 2007)
2007

 

A. Sáiz, D. Ruffolo, N. Kamyan, K. Suwatcharakunton, J. W. Bieber, P. Evenson and R. Pyle, Spectral Evolution of Relativistic Solar Particles Thailand  (accepted for 33rd Congress on Science and Technology of Thailand, Nakorn Si Thammarat, October, 2007)

2007

 

J. W. BieberJ. Clem, P. Evenson, R. Pyle, D. Ruffolo, A. Sáiz, and M. Wechakama, A Maverick GLE: The Relativistic Solar Particle Event of December 13, 2006 (accepted for33rd Congress on Science and Technology of Thailand, Nakorn Si Thammarat, October, 2007)

2007 D. Ruffolo, P. Wongpan, W. H. Matthaeus, P. Chuychai, and G. Rowlands, Quasi-linear and Percolative Magnetic Field Line Random Walks ( 4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

A. Sáiz, D. Ruffolo, J. Bieber, P. Evenson, and R. Pyle, Anisotropy Signatures of Solar Energetic Particle Transport in a Closed Interplanetary Magnetic Loop (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

D. Ruffolo, A. Sáiz, W. Sonsrettee, T. Nutaro (presenter), S. Sumran, C. Chaiwattana, M. Rujiwarodom, P. Tooprakai, and C. Changchutoe, Installation of the Princess Sirindhorn Neutron Monitor at a high cutoff rigidity in Thailand (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

C. Channok and D. Ruffolo, Simulation of Shock Acceleration of Solar Energetic Particles (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

P. Tooprakai, D. Ruffolo, W. H. Matthaeus, J. W. Bieber, and P. Chuychai, Particle Trapping in 2D+Slab Magnetic Turbulence in Spherical Geometry (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

P. Anan, D. Ruffolo, and J. Clem, Effect of the Environment on the Princess Sirindhorn Neutron Monitor Yield Function (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

P. Chuychai, D. Ruffolo, W. H. Matthaeus, and J. Meechai, Trapping and Diffusive Escape of Field Lines in Two-Component Magnetic Turbulence (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

P. Chuychai, W. H. Matthaeus, J. W. Bieber, D. Ruffolo, and J. Minnie, Measuring the Ultrascale of Two-Dimensional Fluctuations in Solar Wind Turbulence (4th Annual Meeting of the Asia Oceania Geosciences Society, Bangkok, July-August, 2007)

2007

 

J. W. Bieber, J. Clem, P. Evenson, R. Pyle, D. Ruffolo, A. Sáiz, and M. Wechakama, A Maverick GLE: The Relativistic Solar Particle Event of December 13, 2006 ( 30th Internat. Cosmic Ray Conf., Merida, Mexico, July, 2007)

2007

 

P. Tooprakai, D. Ruffolo, W. H. Matthaeus, J. W. Bieber, and P. Chuychai, Particle Trapping in 2D+Slab Magnetic Turbulence in  a  Spherical Geometry (11th Annual National Symposium on Computational Science and Engineering, Phuket, March, 2007)

2007

 

R. Kittinaradorn, D. Ruffolo, and W. H. Matthaeus, Simulation of Moss Patterns in the Solar Corona (11th Annual  National Symposium on Computational Science and Engineering, Phuket, March, 2007)

2007

 

K. Suwatcharakunton, A. Sáiz, and D. Ruffolo, Effects of Transport Parameters on the Spectral Evolution of Relativistic Solar    Particles (11th Annual National Symposium on Computational Science and Engineering, Phuket, March, 2007)

2007

 

N. Kamyan, A. Sáiz, and D. Ruffolo, Spectral Evolution of Relativistic Solar Particles on 2003 October 28 (11th Annual National Symposium on Computational Science and Engineering, Phuket, March, 2007)

2007 D. Ruffolo, A. Sáiz, J. W. Bieber, P. Evenson, and R. Pyle, M. Rujiwarodom, P. Tooprakai, M. Wechakama, and T. Khumlumlert, Precision Modeling of Solar Energetic Particle Transport (Invited talk, Siam Physics Congress, Nakorn Pathom, March, 2007)

2007

D. Ruffolo and P. Wongpan, IHY Science: Ground-Based Instruments for Space Physics (Invited talk, Siam Physics  Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

D. Ruffolo, P. Tooprakai, M. Rujiwarodom (presenter), T. Khumlumlert, M. Wechakama, J. Bieber, P. Evenson, and R. Pyle,  Relativistic Solar Protons on 1989 October 22: Injection and Transport along Both Legs of a Closed Interplanetary Magnetic Loop (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

D. Ruffolo, A. Sáiz (presenter), W. Sonsrettee, T. Nutaro, S. Sumran, C. Chaiwattana, M. Rujiwarodom, P. Tooprakai, and C. Changchutoe, First Detection of Cosmic Rays from Thailand (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

P. Tooprakai, D. Ruffolo, W. H. Matthaeus, J. W. Bieber, and P. Chuychai, Particle Simulation in 2D+Slab Magnetic Field Turbulence (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

W. Norkaew and D. Ruffolo, Drifts of Energetic Particles in an Interplanetary Magnetic Cloud (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

P. Anan, D. Ruffolo, and J. Clem, Effects of the Environment on the Princess Sirindhorn Neutron Monitor Yield Function (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

P. Wongpan, D. Ruffolo, W. H. Matthaeus, and G. Rowlands, Magnetic Field Line Random Walk in Arbitrarily Stretched Isotropic Turbulence (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007

R. Kittinaradorn, D. Ruffolo, and W. H. Matthaeus, Origin of “moss” patterns in the solar corona: Turbulence topology, heating by reconnection, and magnetic connection to the transition region (Siam Physics Congress and Thai National Astronomy Meeting, Nakorn Pathom, March, 2007)

2007 D. Ruffolo, P. Chuychai, P. Tooprakai, W. H. Matthaeus, and J. Meechai, Explanation of Dropouts in Solar Energetic Particle Intensity: Filamentation of Magnetic Connection in Turbulent Solar Wind Plasma (3rd International Conference on the Frontiers of Plasma Physics and Technology, Bangkok, March, 2007)

2007 R. Kittinaradorn, D. Ruffolo, and W. H. Matthaeus, Origin of “Moss” Patterns in the Solar Corona: Turbulence Topology, Heating by Reconnection, and Magnetic Connection to the Transition Region (3rd International Conference on the Frontiers of Plasma Physics and Technology, Bangkok, March, 2007)

2007 P. Wongpan, D. Ruffolo, W. H. Matthaeus, and G. Rowlands, Magnetic Field Line Random Walk in Turbulent Plasmas (submitted to 3rd International Conference on the Frontiers of Plasma Physics and Technology, Bangkok, March, 2007)

2006

D. Ruffolo, A. Sáiz, J. W. Bieber, P. Evenson, and R. Pyle, M. Rujiwarodom, P. Tooprakai, M. Wechakama, and T. Khumlumlert, Precision Modeling of Solar Energetic Particle Intensity and Anisotropy Profiles, Eos Trans. Amer. Geophys. Union, 87(52), Fall Meet. Suppl., Abstract SH54A-02 (San Francisco, December, 2006)

2006 P. Pongkitiwanichkul and D. Ruffolo (presenter), J. Sukonthachat, and W. H. Matthaeus, The Sawtooth Effect on Particle Acceleration at Quasi-Perpendicular Shocks in Random Magnetic Fields, Eos Trans. Amer. Geophys. Union, 87(52), Fall Meet. Suppl., Abstract SH43B-1517 (San Francisco, December, 2006)  
2006 P. Tooprakai, D. Ruffolo (presenter), W. H. Matthaeus, and P. Chuychai, Particle Trapping and Dropouts in Magnetic Turbulence in a Spherical Geometry, Eos Trans. Amer. Geophys. Union, 87(52), Fall Meet. Suppl., Abstract SH13A-0396 (San Francisco, December, 2006)

2006 P. Wongpan , D. Ruffolo (presenter), W. H. Matthaeus, and G. Rowlands, Magnetic Field Line Random Walk in Isotropic and Spheroidal Turbulence (accepted by Amer. Geophys. Union Fall Meet., San Francisco, December, 2006)

2006

A. Sáiz, D. Ruffolo, J. Bieber, P. Evenson, and R. Pyle, Anisotropy Signatures of Solar Energetic Particle Transport in a Closed Interplanetary Magnetic Loop (32nd Congress on Science and Technology of Thailand, Bangkok , October, 2006)

2006 P. Wongpan , D. Ruffolo, W. H. Matthaeus, and G. Rowlands, Magnetic Field Line Random Walk in Isotropic and Spheroidal Turbulence (32nd  Congress on Science and Technology of Thailand, Bangkok , October, 2006)

2006

P. Tooprakai, D. Ruffolo , W. H. Matthaeus, and P. Chuychai, Particle Trapping in 2D + Slab Magnetic Turbulence in a Spherical Geometry (32nd Congress on Science and Technology of Thailand, Bangkok , October, 2006)

2006

N. Kimpraphan , D. Ruffolo, and S. Chatraphorn, Trapping of Magnetic Field Lines in Islands of Turbulence (32nd Congress on Science and Technology of Thailand, Bangkok , October, 2006)

2006

P. Chuychai, D. Ruffolo (presenter), W. H. Matthaeus, and J. Meechai, Trapping and Diffusive Escape of Field Lines in Two-Component Magnetic Turbulence (32nd Congress on Science and Technology of Thailand, Bangkok , October, 2006)

2006 D. Ruffolo, P. Wongpan, and W. H. Matthaeus, Field Line Random Walk in Ellipsoidal Magnetic Turbulence (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006)

2006 W. Norkaew and D. Ruffolo, Drift Motions of Energetic Particles in an Interplanetary Magnetic Cloud (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006)

2006 P. Pongkitiwanichkul and D. Ruffolo, Sawtooth Mechanism of Particle Acceleration at Shocks in Random Magnetic Fields (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006

2006

C. Channok, D. Ruffolo, M. Desai, and G. Mason, Numerical Simulation of Finite Time Shock Acceleration for Solar Storm Particles (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006)

2006

A. Sáiz, D. Ruffolo, M. Rujiwarodom, J. Bieber (presenter), J. Clem, P. Evenson, R. Pyle, M. Duldig, and J. Humble, Relativistic Particle Injection and Interplanetary Transport during the January 20, 2005 Ground Level Enhancement of Cosmic Rays (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006)

2006

P. Tooprakai, P. Chuychai, J. Minnie, W. H. Matthaeus, J. W. Bieber, and D. Ruffolo, Computation of Particle Trapping in a Gaussian 2D+Slab Magnetic Field (10th Annual National Symposium on Computational Science and Engineering, Chiang Mai, March, 2006)

2005

P. Chuychai, D. Ruffolo, W. H. Matthaeus, and J. Meechai, Trapping, Diffusive Escape and Transport of Field Lines in Two-Component Magnetic Turbulence (accepted by Fall 2005 Meeting of the American Geophysical Union, San Francisco, December, 2005)

2005 J. Bieber, J. Clem, P. Evenson, R. Pyle, D. Ruffolo, M. Rujiwarodom, A. Sáiz, M. Duldig, and J. Humble, Neutron Monitor Observations of the January 20, 2005 Ground Level Enhancement (accepted by Fall 2005 Meeting of the American Geophysical Union, San Francisco, December, 2005)

2005 D. Ruffolo, P. Tooprakai, M. Rujiwarodom (presenter), T. Khumlumlert, M. Wechakama, J. Bieber, P. Evenson, and R. Pyle,  Relativistic Solar Protons on 1989 October 22: Injection and Transport along Both Legs of a Closed Interplanetary Magnetic Loop (31st Congress on Science and Technology of Thailand, Nakorn Ratchasima, October, 2005)

2005 P. Pongkitiwanichkul and D. Ruffolo, Sawtooth Mechanism of Particle Acceleration at Shocks in Random Magnetic Fields (31st Congress on Science and Technology of Thailand, Nakorn Ratchasima, October, 2005)

2005 A. Sáiz, D. Ruffolo, M. Rujiwarodom, J. Bieber (presenter), J. Clem, P. Evenson, R. Pyle, M. Duldig, and J. Humble, Relativistic Particle Injection and Interplanetary Transport during the January 20, 2005 Ground Level Enhancement of Cosmic Rays (31st Congress on Science and Technology of Thailand, Nakorn Ratchasima, October, 2005)

2005 D. Ruffolo, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, M. Wechakama, J. Bieber (presenter), P. Evenson, and R. Pyle,  Relativistic Solar Protons on 1989 October 22: Injection and Transport along Both Legs of a Closed Interplanetary Magnetic Loop (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)

2005 C. Channok, D. Ruffolo, M. Desai, and G. Mason, Finite Time Shock Acceleration and Fits to ESP Ion Spectra (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)
2005 A. Sáiz, P. Evenson, D. Ruffolo, and J. Bieber, On the Estimation of Solar Energetic Particle Timing from Onset Times near Earth (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)
2005 A. Sáiz, D. Ruffolo, M. Rujiwarodom, J. Bieber, J. Clem, P. Evenson, R. Pyle, M. Duldig, and J. Humble, Relativistic Particle Injection and Interplanetary Transport during the January 20, 2005 Ground Level Enhancement (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)
2005 J. Bieber, J. Clem, P. Evenson, R. Pyle, M. Duldig, J. Humble, D. Ruffolo, A. Sáiz, and M. Rujiwarodom, Largest GLE in Half a Century: Neutron Monitor Observations of the January 20, 2005 Event (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)
2005 J. Bieber, J. Clem, P. Evenson (presenter), R. Pyle, J. B. Blake, T. Mulligan, D. Ruffolo, and A. Sáiz, Observation of Neutron and Gamma Ray Emission from the October 28, 2003 Solar Flare (accepted by 29th International Cosmic Ray Conference, Pune, India, August, 2005)
2005 C. Channok, D. Ruffolo (presenter), M. Desai, and G. Mason, Finite time shock acceleration and fits to ESP ion spectra (invited talk, 2005 Solar, Heliospheric, and Interplanetary Environment Workshop, Hawaii, July, 2005)
2005 D. Ruffolo, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, M. Wechakama, J. Bieber , P. Evenson, and R. Pyle,  Relativistic Solar Protons on 1989 October 22: Injection along Both Legs of a Loop (accepted for the 2005 Solar, Heliospheric, and Interplanetary Environment Workshop, Hawaii, July, 2005)
2005 D. Ruffolo, P. Chuychai, W. H. Matthaeus, and G. Rowlands, Turbulence, dropouts, and suppression of the field line random walk (accepted for the 2005 Solar, Heliospheric, and Interplanetary Environment Workshop, Hawaii, July, 2005)
2005 J. Bieber, J. Clem, P. Evenson, R. Pyle, M. Duldig, J. Humble, D. Ruffolo, M. Rujiwarodom, and A. Sáiz, Record-Setting Ground Level Ehancement: January 20, 2005 (accepted for the 2005 Solar, Heliospheric, and Interplanetary Environment Workshop, Hawaii, July, 2005)
2005 J. Bieber, J. Clem, P. Evenson (presenter), R. Pyle, J. B. Blake, T. Mulligan, D. Ruffolo, and A. Sáiz, Observation of Neutron and Gamma Ray Emission from the October 28, 2003 Solar Flare (accepted for the 2005 Solar, Heliospheric, and Interplanetary Environment Workshop, Hawaii, July, 2005)

2005 D. Ruffolo, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, M. Wechakama, J. W. Bieber, P. Evenson, and R. Pyle, Injection and Transport of Relativistic Solar Protons along Both Legs of a Closed Interplanetary Magnetic Field Loop (9th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2005)

2005 A. Sáiz, P. Evenson, D. Ruffolo, and J. W. Bieber, On the Estimation of Solar Energetic Particle Timing from Onset Times near Earth (9th Annual National Symposium on Computational Science and Engineering, Bangkok, March, 2005)

2004 J. M. Clem, J. W. Bieber, P. Evenson, R. Pyle, A. Sáiz, and D. Ruffolo, Investigation of the Solar Neutron Event at Tsumeb on 28 October 2003, Eos Trans. Amer. Geophys. Union, 85(46), Fall Meet. Suppl., Abstract SH13A-1136 (San Francisco, December, 2004)

2004 D. Ruffolo, Transport and Acceleration of Solar Energetic Particles from Coronal Mass Ejection Shocks (Invited Talk, IAU Symposium 226, Coronal and Stellar Mass Ejections, Beijing, September, 2004)

2004

C. Channok, D. Ruffolo (presenter), M. I. Desai, and G. M. Mason, Finite Time Shock Acceleration at

Interplanetary Shocks (8th Annual National Symposium on Computational Science and Engineering,

Nakorn Ratchasima, July, 2004)

2004 P. Pongkitiwanichkul and D. Ruffolo, Effect of a turbulent magnetic field on the shock drift acceleration of particles at a nearly perpendicular shock (8th Annual National Symposium on Computational Science and Engineering, Nakorn Ratchasima, July, 2004)

2004 P. Chuychai, D. Ruffolo, J. Meechai, P. Pongkitiwanichkul, A. Saiz, N. Kimpraphan, W. H. Matthaeus, and G. Rowlands, Inhibition of Random Walk by Systematic Flow in Two Dimensions (8th Annual National Symposium on Computational Science and Engineering, Nakorn Ratchasima, July, 2004)

2004 J. W. Bieber, P. Evenson, R. Pyle, D. Ruffolo, and A. Saiz (presenter), Unusual Features of the October 28, 2003 Ground Level Enhancement (8th Annual National Symposium on Computational Science and Engineering, Nakorn Ratchasima, July, 2004)

2004 J. W. Bieber, P. Evenson (presenter), R. Pyle, D. Ruffolo, and T. Khumlumlert, Spaceship Earth Observations of the 24 August 2002 Event (Solar, Heliospheric and Interplanetary Environment Workshop 2004, Big Sky, Montana, June, 2004)

2004 D. Ruffolo, W. H. Matthaeus, and P. Chuychai, Trapping of Solar Energetic Particles by Small-Scale Topology of Solar Wind Turbulence, Eos Trans. Amer. Geophys. Union, 85(17), Joint Assem. Suppl., Abstract SH24A-05 (Montréal, Canada, May, 2004)

2004 D. Ruffolo, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, J. W. Bieber, P. Evenson, and R. Pyle, Relativistic Solar Particles on 1989 October 22: Injection along Both Legs of a Closed Interplanetary Magnetic Field Loop, Eos Trans. Amer. Geophys. Union, 85(17), Joint Assem. Suppl., Abstract SH31A-04 (Montréal, Canada, May, 2004)

2004 C. Channok, D. Ruffolo (presenter), M. I. Desai, and G. M. Mason, Finite Time Shock Acceleration at Interplanetary Shocks, Eos Trans. Amer. Geophys. Union, 85(17), Joint Assem. Suppl., Abstract SH31A-05 (Montréal, Canada, May, 2004)

2004 D. Ruffolo, P. Chuychai, J. Meechai, P. Pongkitiwanichkul, N. Kimpraphan, W. H. Matthaeus, and G. Rowlands, Sharp Trapping Boundaries in the Random Walk of Interplanetary Magnetic Field Lines, Eos Trans. Amer. Geophys. Union, 85(17), Joint Assem. Suppl., Abstract SH31A-06 (Montral, Canada, May, 2004)

2004 J. W. Bieber, P. Evenson, R. Pyle, D. Ruffolo, and A. Saiz, Unusual Features of the October 28, 2003 Ground Level Enhancement, Eos Trans. Amer. Geophys. Union, 85(17), Joint Assem. Suppl., Abstract SH33A-02 (Montréal, Canada, May, 2004)

2003 D. Ruffolo and C. Channok, "Finite-Time Shock Acceleration," Proc. 28th Internat. Cosmic Ray Conf., 6, 3681 (Tsukuba, Japan, August, 2003)
 
2003 P. Chuychai, D. Ruffolo, and W. H. Matthaeus, "Conditional Statistics of Magnetic Turbulence and the Lateral Transport of Solar Energetic Particles," Proc. 28th Internat. Cosmic Ray Conf., 6, 3499 (Tsukuba, Japan, August, 2003)
 
2003 K. Malakit, K. Klappong, K. Leerungnavarat, P. Chuychai, N. Sanguansak, and  D. Ruffolo, "Particle Acceleration at Fluid Compressions and What That Teaches Us about Shock Acceleration," Proc. 28th Internat. Cosmic Ray Conf., 6, 3677 (Tsukuba, Japan, August, 2003)
 
2003 J. W. Bieber, P. Evenson, D. Ruffolo, W. Dröge, R. Pyle, T. Khumlumlert, M. Rujiwarodom, and P. Tooprakai, "‘Spaceship Earth’ Observations of the Easter GLE" (accepted by 28th Internat. Cosmic Ray Conf., Tsukuba, Japan, August,  2003)
 
2003 D. Ruffolo, W. Matthaeus, and P. Chuychai, "Conditional Statistics of Magnetic Turbulence and the Lateral Transport of Solar Energetic Particles," Proc. 7th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Bangkok, March, 2003)
 
2003 P. Chuychai, W. Matthaeus, and D. Ruffolo, "Computer Simulations of the Random Walk of Turbulent Magnetic Field Lines," Proc. 7th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Bangkok, March, 2003)
 
2003 K. Malakit, K. Klappong, K. Leerungnavarat, and D. Ruffolo, "Effects of Systematic Pitch-Angle Changes on Cosmic Ray Acceleration on Shocks and Compression Regions: Contribution of the Mirroring Effect," Proc. 7th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Bangkok, March, 2003)
 
2003 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo, P. Tooprakai, M. Rujiwarodom (presenter), and T. Khumlumlert, "Accurate Timing of Solar Energetic Particle Accleration on April 15, 2001," Proc. 7th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Bangkok, March, 2003)
 
2002 J. W. Bieber, W. Droege, P. Evenson, R. Pyle, D. Ruffolo, P. Tooprakai, M. Rujiwarodom, and T. Khumlumlert, "‘Spaceship Earth’ Observations of the Easter GLE" Eos, Trans. Amer. Geophys. Union, 83(47), Fall Meet. Suppl., Abstract SH11A-0381 (San Francisco, December, 2002)
 
2002 D. Ruffolo, W. H. Matthaeus, and P. Chuychai, "Magnetic Turbulence and the Lateral Transport of Solar Energetic Particles," 28th Congress on Science and Technology of Thailand, p. 238 (Bangkok, October, 2002)
 
2002 P. Tooprakai, M. Rujiwarodom, and D. Ruffolo, "Modeling of Solar Energetic Particle Transport in a Magnetic Loop during the Solar Event of October 22, 1989," 28th Congress on Science and Technology of Thailand, p. 241 (Bangkok, October, 2002)
 
2002 K. Malakit, K. Klappong, K. Leerungnavarat, and D. Ruffolo, "Particle Acceleration at Regions near Shocks and Plasma Compressions for Various Angles between the Magnetic Field and Shock Normal," 28th Congress on Science and Technology of Thailand, p. 242 (Bangkok, October, 2002)
 
2002 P. Chuychai, W. H. Matthaeus, and D. Ruffolo, "Modeling of Solar Energetic Particle Transport in a Magnetic Loop during Computer Simulations of the Random Walk of Turbulent Magnetic Field Lines," 28th Congress on Science and Technology of Thailand, p. 257 (Bangkok, October, 2002)
 
2002 T. Khumlumlert, D. Ruffolo, G. Mason, and J. Dwyer, "Injection Function of the Solar Energetic Particles on November 6, 1997," 28th Congress on Science and Technology of Thailand, p. 227 (Bangkok, October, 2002)
 
2002 D. Ruffolo, P. Chuychai, and W. H. Matthaeus (presenter), “Random Walk and Separation of Magnetic Field Lines in Two-Component Magnetic Turbulence” (Solar Wind 10, paper SIV 42, Pisa, Italy, June, 2002)
 
2002 J. W. Bieber, P. A. Evenson, R. Pyle, P. Tooprakai, M. Rujiwarodom, and D. Ruffolo, Mirroring within a Magnetic Loop as the Cause of the Unusual Solar Cosmic Ray Event on October 22, 1989” (Solar Wind 10, paper SV 28, Pisa, Italy, June, 2002)
 
2002 C. Channok, D. J. Ruffolo (presenter), G. P. Zank, and H. Mueller, “Velocity Distribution of Hydrogen Atoms toward the Solar Apex,” Eos, Trans. Amer. Geophys. Union, 83(19), Spring Meet. Suppl., Abstract SH31A-03 (Washington, DC, May, 2002)
 
2002

K. Leerungnavarat, D. Ruffolo, and J. W. Bieber, “Cosmic Ray Anisotropy Near a CME-Driven Shock,” Eos, Trans. Amer. Geophys. Union, 83(19), Spring Meet. Suppl., Abstract SH32B-07 (Washington, DC, May, 2002)
 

2002 P. Tooprakai, M. Rujiwarodom, and D. Ruffolo, Model of Solar Energetic Particle Transport with Magnetic Mirroring during the Solar Event of October 22, 1989,” Proc. 6th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Nakorn Srithammarat, April, 2002)
 
2002 D. Ruffolo, M. Rujiwarodom (presenter), and P. Tooprakai, “Interplanetary Magnetic Mirroring of Energetic Particles from the Sun,” Proc. 6th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand) (Nakorn Srithammarat, April, 2002)
 
2001 J. W. Bieber, P. A. Evenson, R. Pyle, P. Tooprakai, M. Rujiwarodom, and D. Ruffolo, "Magnetic Mirroring as the Cause of the Unusual Cosmic Ray Event on October 22, 1989,” Eos, Trans. Amer. Geophys. Union, 82(47), Fall Meet. Suppl., Abstract SH32B-02 (San Francisco, December, 2001)
 
2001 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo (presenter), U. Pinsook, P. Tooprakai, M, Rujiwarodom, T. Khmlumlert, and S. Krucker, “Interplanetary Magnetic Bottleneck and Energetic Particles from the Solar Event of July 14, 2000,” 27th Congress on Science and Technology of Thailand, p. 404 (Hatyai, October, 2001)
 
2001 D. Ruffolo, P. Chuychai (presenter), and W. H. Matthaeus, “Field Line Random Walk for Non-axisymmetric Magnetic Fluctuations,” 27th Congress on Science and Technology of Thailand, p. 402 (Hatyai, October, 2001)
 
2001 K. Klappong, K. Leerungnavarat, P. Chuychai, and D. Ruffolo, “Particle Acceleration and Pitch Angle Transport near a Thin Shock and a Compression Region,” 27th Congress on Science and Technology of Thailand, p. 372 (Hatyai, October, 2001)
 
2001 D. Ruffolo and W. H. Matthaeus, “Field Line Separation in Two-Component Magnetic Turbulence,” Proc. 27th Internat. Cosmic Ray Conf., 8, 3298 (Hamburg, Germany, August, 2001)
 
2001 D. Ruffolo, P. Chuychai, and W. H. Matthaeus, “Field Line Random Walk for Non-axisymmetric Magnetic Fluctuations,” Proc. 27th Internat. Cosmic Ray Conf., 8, 3729 (Hamburg, Germany, August, 2001)
 
2001 K. Klappong, K. Leerungnavarat (presenter), P .Chuychai, and D. Ruffolo, “Particle Acceleration and Pitch Angle Transport near a Thin Shock and a Compression Region, and a Structured Shock,” Proc. 27th Internat. Cosmic Ray Conf., 8, 3461 (Hamburg, Germany, August, 2001)
 
2001 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo, U. Pinsook, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, and S. Krucker, “Relativistic Solar Protons on Bastille Day 2000,“ Proc. 27th Internat. Cosmic Ray Conf., 8, 3434 (Hamburg, Germany, August, 2001)
 
2001 Yu. Yu. Kartavykh, V. M. Ostryakov, D. Ruffolo, E. Möbius, and M. A. Popecki, “Heavy Ions from Impulsive SEP Events and Constraints on the Plasma Temperature in the Acceleration Site,” Proc. 27th Internat. Cosmic Ray Conf., 8, 3091 (Hamburg, Germany, August, 2001)
 
2001 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo (presenter), U. Pinsook, P. Tooprakai, M. Rujiwarodom, T. Khumlumlert, and S. Krucker, "Energetic Particle Observations during the 2000 July 14 Solar Events," Proc. 5th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 98 (Bangkok, June, 2001)
 
2001 T. Khumlumlert, D. Ruffolo, U. Pinsook, P. Tooprakai, M. Rujiwarodom, G. Mason, J. Dwyer, and M. Desai, "Automated Analysis of Spacecraft Data on Solar Energetic Particles," Proc. 5th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 109 (Bangkok, June, 2001)
 
2001 S. Wannawichian, D. Ruffolo, and J. Kartavykh, "Calculation of Mean Charges of Slow Ions in a Plasma with a Kappa Distribution for the Electron Velocity," Proc. 5th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 114 (Bangkok, June, 2001)
 
2001 K. Klappong, K. Leerungvanarat, P. Chuychai, E. Hirunsirisawat, and D. Ruffolo, "Comparison between Particle Acceleration at a Continuous Compression and at a Shock," Proc. 5th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 119 (Bangkok, June, 2001)
 
2001 D. Ruffolo and W. H. Matthaeus, "Field Line Separation in Two-Component Magnetic Turbulence," Eos, Trans. Amer. Geophys. Union, 82(20), Spring Meet. Suppl., Abstract SH42B-06 (Boston, May, 2001)
 
2001

D. Ruffolo, P. Chuychai, and W. H. Matthaeus, "Field Line Random Walk for Non-axisymmetric magnetic Fluctuations," Eos, Trans. Amer. Geophys. Union, 82(20), Spring Meet. Suppl., Abstract SH42B-07 (Boston, May, 2001)
 

2001

Yu. Yu. Kartavykh, V. M. Ostryakov, D. Ruffolo (presenter), E. Möbius, and M. A. Popecki, "Heavy Ions from Impulsive SEP Events and Constraints on the Plasma Temperature in the Acceleration Site," Eos, Trans. Amer. Geophys. Union, 82(20), Spring Meet. Suppl., Abstract SH62B-07 (Boston, June, 2001)
 

2001 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo (presenter), U. Pinsook, P. Tooprakai, M. Rujiwarodom, and T. Khumlumlert, "Interplanetary Magnetic Mirroring of Energetic Particles from the Solar Event of July 14, 2000," Proc. Acad. Cnnf. Fac. of Sci. Chula. Univ., p. 36 (Bangkok, March, 2001)
 
2001 C. Channok and D. Ruffolo, "Simulation of the Interaction of the Interstellar Medium with the Solar Wind in the Solar System," Proc. Acad. Cnnf. Fac. of Sci. Chula. Univ., p. 47 (Bangkok, March, 2001)
 
2001 D. Ruffolo, P. Chuychai (presenter), and W. Matthaeus, "Magnetic Field Line Random Walk," Proc. Acad. Cnnf. Fac. of Sci. Chula. Univ., p. 48 (Bangkok,  March, 2001)
 
2001 K. Leerungnavarat, D. Ruffolo, and J. Bieber, "Precursor to Forbush Decreases and Advanced Warning of Space Weather Effects," Proc. Acad. Cnnf. Fac. of Sci. Chula. Univ., p. 49 (Bangkok, March, 2001)
 
2000 K. Leerungnavarat, D. Ruffolo, and J. W. Bieber (presenter), "Loss Cone Precursors of CME Shocks," Eos, Trans. Amer. Geophys. Union, 81(19), S350 submitted to Fall Meeting of the American Geophysical Union (San Francisco, December, 2000)
 
2000 J. W. Bieber, W. Dröge, P. Evenson, R. Pyle, D. Ruffolo, U. Pinsook, P. Tooprakai, and M. Rujiwarodom, "Relativistic Solar Protons on Bastille Day 2000," Eos, Trans. Amer. Geophys. Union, 81(19), S350 submitted to Fall Meeting of the American Geophysical Union (San Francisco, December, 2000)
 
2000 D. Ruffolo and W. Matthaeus, “Diffusive Separation of Magnetic Field Lines in Space,” accepted by 26th Congress on Science and Technology of Thailand (Bangkok, October, 2000)
 
2000 K. Leerungnavarat, D. Ruffolo, and J. Bieber, “Precursors to Forbush Decreases and Advanced Warning of Space Weather Effects,” accepted by 26th Congress on Science and Technology of Thailand (Bangkok, October, 2000)
 
2000 J. Kartavykh, S. Wannawichian (presenter), D. Ruffolo, and V. Ostryakov, “Equilibrium Charge Distributions of Energetic Heavy Ions in a Plasma,” accepted by 26th Congress on Science and Technology of Thailand (Bangkok, October, 2000)
 
2000 C. Channok, P. Boonma, and D. Ruffolo, “Velocity Distribution of Hydrogen Atoms in the Solar System,” accepted by 26th Congress on Science and Technology of Thailand (Bangkok, October, 2000)
2000 D. Ruffolo, “Classification of Solar Energetic Particles,” (solicited paper, presented at 33rd COSPAR Scientific Assembly, Warsaw, Poland, July, 2000)
2000 Yu. Yu. Kartavykh, S. Wannawichian, D. Ruffolo (presenter), and V. M. Ostryakov, “Charge State Distributions of Mg and Si from Stochastic Acceleration in Impulsive Solar Flares,” (presented at 33rd COSPAR Scientific Assembly, Warsaw, Poland, July, 2000)
2000 D. Ruffolo, “Classification of Solar Energetic Particle Populations,” Eos, Trans. Amer. Geophys. Union, 81(19), S350 (Washington, DC, May, 2000)
 
2000 Yu. Yu. Kartavykh, S. Wannawichian, D. Ruffolo, and V. M. Ostryakov, “Equilibrium Charge Distributions of Energetic Heavy Ions in a Plasma,” Proc. Regional Conf. of Plasma Res. in the 21st Century (Bangkok, May, 2000)
 
2000 D. Ruffolo, J. Sukonthachat, W. Sidhisoradej, and P. Chuychai, “Multiple Shock Crossings of Turbulent Magnetic Fields,” Proc. 4th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.42 (Bangkok, March, 2000)
 
2000 C. Channok, P. Boonma, and D. Ruffolo, “Simulation of Boltzmann Transport Equation for Charge Exchange Interactions between Hydrogen Atoms and Protons in the Heliosphere,” Proc. 4th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 50 (Bangkok, March, 2000)
 
2000 T. Khumlumlert, D. Ruffolo, S. Wannawichian, S. Kamklad, and N. Kimpraphan, “Fitting Cosmic Ray Intensity Data from the ACE Spacecraft,” Proc. 4th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 75 (Bangkok, March, 2000)
 
2000 K. Leerungnavarat, N. Sanguansak, and D. Ruffolo, “A Hybrid Orbit-Finite Difference Method for Simulating the Shock Acceleration of Cosmic Rays,” Proc. 4th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 89 (Bangkok, March, 2000)
 
2000 J. Kartavykh, G. Kovaltsov, V. Ostryakov, and D. Ruffolo, “Stochastic Simulation of Heavy Ion Acceleration in Impulsive Solar Flares: Coulomb Losses and Charge Transfer,” Proc. 4th Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 94 (Bangkok, March, 2000)
 
1999  D. Ruffolo, J. W. Bieber, P. A. Evenson, and K. R. Pyle, “Space Weather Prediction from Precursors to Cosmic Ray Decreases” (in Thai), 25th Congress on Science and Technology of Thailand, A-2, p. 92 (Phitsanulok, October, 1999)
 
1999 T. Nutaro and D. Ruffolo, “Simulation of Cosmic Ray Transport and Acceleration near an Oblique, Spherical Shock” (in Thai), 25th Congress on Science and Technology of Thailand, A-15, p. 118 (Phitsanulok, October, 1999)
 
1999 N. Sanguansak and D. Ruffolo, “Energetic Particles Transport and Acceleration near an Oblique Shock: A Hybrid-Orbit Finite Difference Method” (in Thai), 25th Congress on Science and Technology of Thailand, G-13, p. 1222 (Phitsanulok, October, 1999)
 
1999 J. Sukonthachat and D. Ruffolo, “Multiple Magnetic Field-Shock Crossings and Particle Acceleration at Quasi-Perpendicular Shocks” (in Thai), 25th Congress on Science and Technology of Thailand, A-14, p. 116 (Phitsanulok, October, 1999)
 
1999 P. Boonma, C. Channok, and D. Ruffolo, “Solution of the Boltzmann Equation in One Spatial Dimension for Hydrogen Atoms in the Heliosphere” (in Thai), 25th Congress on Science and Technology of Thailand, A-13, p. 114 (Phitsanulok, October, 1999)
 
1999 D. Ruffolo, J. W. Bieber, P. A. Evenson, and K. R. Pyle, “Precursors to Forbush Decreases and Space Weather Prediction,” Proc. 26th Internat. Cosmic Ray Conf., 6, 440 (Salt Lake City, USA, August, 1999)
 
1999 D. Ruffolo and J. Sukonthachat, “Multiple Magnetic Field-Shock Crossings and Particle Acceleration at Quasi-Perpendicular Shocks,” Proc. 26th Internat. Cosmic Ray Conf., 7, 467 (Salt Lake City, USA, August, 1999)
 
1999 D. Ruffolo and P. Chuychai, “First-Order Fermi Acceleration at a Continuous Compression,” Proc. 26th Internat. Cosmic Ray Conf., 6, 552 (Salt Lake City, USA, August, 1999)
 
1999 T. Nutaro and D. Ruffolo, “Simulation of Cosmic Ray Transport and Acceleration near an Oblique, Spherical Shock,” Proc. 26th Internat. Cosmic Ray Conf., 6, 556 (Salt Lake City, USA, August, 1999)
 
1999 N. Sanguansak and D. Ruffolo, “A Hybrid Orbit-Finite Difference Treatment of Oblique Shock Acceleration,” Proc. 26th Internat. Cosmic Ray Conf., 4, 459 (Salt Lake City, USA, August, 1999)
 
1999 D. Ruffolo, J. W. Bieber, P. A. Evenson, and K. R. Pyle, “Precursors to Forbush Decreases and Space Weather Prediction,” Eos, Trans. Amer. Geophys. Union, 80(17), S266 (Boston,May,1999)
 
1999 D. Ruffolo, “Shock Acceleration of Cosmic Ray Particles and Space Weather Forecasting,” Proc. 3rd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 135 (Bangkok, March, 1999)
 
1999 P. Boonma and D. Ruffolo, “Solution of the Boltzmann Equation in One Spatial Dimension for Hydrogen Atoms in the Heliosphere,” Proc. 3rd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 154 (Bangkok, March, 1999)
 
1999 J. Sukonthachat and D. Ruffolo, “Simulation of a Random Magnetic Field Crossing a Shock,” Proc. 3rd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 144 (Bangkok, March, 1999)
 
1999 P. Tooprakai and D. Ruffolo, “Coronal Magnetic Loop Structure during the Total Solar Eclipse of October 24th, 1995,” Proc. 3rd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 158 (Bangkok, March, 1999)
 
1999 P. Chuychai and D. Ruffolo, “Cosmic Ray Acceleration: A Discontinuous vs. a Continuous Compression,” Proc. 3rd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p. 147 (Bangkok, March, 1999)
 
1999 D. Ruffolo, “Population Dynamics of Razor Clams in Samut Songkram,” Proc. Acad.Conf. Fac. of Sci. Chula. Univ., p. 31 (Bangkok, March, 1999)
 
1998

T. Nutaro and D. Ruffolo, “Cosmic Ray Transport Simulation by Using the Total Variation Diminishing (TVD) Method” (in Thai), 24th Congress on Science and Technology of Thailand, A-134, p. 366 (Bangkok, October, 1998)
 

1998 D. Ruffolo, T. Khumlumlert (presenter), and W. Youngdee, “Deconvolution of Interplanetary Transport of Solar Cosmic Rays” (in Thai), 24th Congress on Science and Technology of Thailand, A-133, p. 364 (Bangkok, October, 1998)
 
1998 P. Tooprakai and D. Ruffolo, “Modeling of a Solar Coronal Magnetic Loop Structure by a Fourier Transform Method” (in Thai), 24th Congress on Science and Technology of Thailand, A-132, p. 362 (Bangkok, October, 1998)
 
1998 D. Ruffolo, “Astrophysics Research in Thailand (in Thai), Science (Thailand), 52, 107
 
1998 D. Ruffolo, T. Khumlumlert, and W. Youngdee, “Deconvoluting the Interplanetary Transport of Solar Cosmic Rays,” Proc. 2nd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.140 (Bangkok, March, 1998)
 
1998 T. Nutaro and D. Ruffolo, “Total Variation Diminishing Algorithm for Cosmic Ray Transport,” Proc. 2nd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.149 (Bangkok, March, 1998)
 
1998 S. Phongphanphanee, D. Ruffolo, and V. Parasuk, “Charge Transfer of O with H+ at High Temperatures,” Proc. 2nd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.24 (Bangkok, March, 1998)
 
1998 P. Tooprakai and D. Ruffolo, “Modeling of a Coronal Magnetic Loop Structure by a Fourier Transform Method,” Proc. 2nd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.156 (Bangkok, March, 1998)
 
1998 W. Sidhisordej, D. Ruffolo, S. Kokpol, and S. Hannongbua, “Three-body Effects in Calcium(II)-ammonia Solutions: Molecular Dynamics Simulations,” Proc. 2nd Ann. Natl. Symp. Computational Sci. and Eng. (Thailand), p.8 (Bangkok, March, 1998)
 
1998 D. Ruffolo, “Interacting and Escaping Solar Energetic Particles,” (Rapporteur Paper), Proc. 25th Internat. Cosmic Ray Conf., 8, 109 (Durban, S. Africa, August, 1997; this volume published by World Scientific, Singapore, 1998)
 
1997 D. Ruffolo, “Computer Simulations of the Interplanetary Transport of Solar Cosmic Rays,” Proc. Intl. Conf. on Computational Math., p. 221 (Bangkok, Thailand, December, 1997)
 
1997 D. Ruffolo, “Origin of Energetic Ions from Gradual Solar Flare Events,” Proc. Chula. Univ. 80th Anniv. Res. Conf., 2, 1059 (Bangkok, Thailand, October, 1997)
 
1997 D. Ruffolo, “Constraints on Coronal Transport and Acceleration Times from Charge States of Interplanetary Ions from Gradual Solar Flare Events, Proc. 25th Internat. Cosmic Ray Conf., 1, 173 (Durban, S. Africa, August, 1997)
 
1997

D. Ruffolo and S. Riyavong, “Simulations of the Transport of Energetic Charged Particles in the Vicinity of an Oblique Shock,” Proc. 25th Internat. Cosmic Ray Conf., 1, 249 (Durban, S. Africa, August, 1997)

1997 W. Dröge, D. Ruffolo, and T. Khumlumlert, “The Rigidity Dependence of Solar Electron Mean Free Paths in the Range 0.3 to 20 MV,” Proc. 25th Internat. Cosmic Ray Conf., 1, 137 (Durban, S. Africa, August, 1997)
 
1997 D. Ruffolo, W. Youngdee, and W. Dröge, “A Deconvolution Technique to Determine Injection Profiles and Spectra of Solar Cosmic Rays,” Proc. 25th Internat. Cosmic Ray Conf., 1, 97 (Durban, S. Africa, August, 1997)
 
1997 D. Ruffolo, “Charge States of Solar Cosmic Rays and Constraints on Acceleration Times and Transport within the Corona,” Bull. Amer. Phys\ Soc., 42, 1130 (American Physical Society, Washington, DC, April, 1997)
 
1997 D. Ruffolo, “An Introduction to Computer Simulations of Cosmic Ray Transport,” Proc. 1st Natl. Computational Sci. and Eng. Symp. (Thailand), p.40 (Bangkok, March, 1997)
 
1997 T. Nutaro and D. Ruffolo, “Flux Corrected Transport vs.\ Flux Limited Transport: A Comparative Computational Study of the Continuity Equation in One Dimension,” Proc. 1st Natl. Computational Sci. and Eng. Symp. (Thailand), p.47 (Bangkok, March, 1997)
 
1997 S. Riyavong and D. Ruffolo, “Computer Simulations of the Transport of Cosmic Rays Crossing an Interplanetary Solar-Flare Shock,” Proc. 1st Natl. Computational Sci. and Eng. Symp. (Thailand), p.53 (Bangkok, March, 1997)
 
1997 W. Youngdee and D. Ruffolo, “Fitting Technique for Determining the Injection Profile of Cosmic Ray Particles from the Sun,” Proc. 1st Natl. Computational Sci. and Eng. Symp. (Thailand), p.57 (Bangkok, March, 1997)
 
1996

D. Ruffolo and S. Riyavong (presenter), “Test of PLIM with a Step and Peak Distribution” (in Thai), 21st Congress on Sci. and Technology of Thailand, A-09, p.122 (Bangkok, October, 1996)
 

1995 D. Ruffolo (co-presenter), T. Bovornratanaraks, S. Vicharnwannaluk, P. Evenson, T. Kerdkaew, W. Sidhisoradej (co-presenter), T. Khumlumlert, S. Riyavong, U. Sathanon, W. Youngdee, C. Srinitiwarawong, and R. Tasakorn, “Observations of Line and Continuum Emission from the Total Solar Eclipse of 24 October 1995” (in Thai), 21st Congress on Sci. and Technology of Thailand, A-049, p.150 (Bangkok, October, 1996)
 
1995 D. Ruffolo and T. Khumlumlert, “Propagation of Coherent Pulses of Solar Cosmic Rays,” Proc. 24th Internat. Cosmic Ray Conf., 4, 277 (Rome, Italy, August, 1995)
 
1995 D. Ruffolo and T. Khumlumlert, “Measurements of the Duration of Particle Emission from Solar Flares,” Proc. 24th Internat. Cosmic Ray Conf., 4, 114 (Rome, Italy, August, 1995)
 
1995 J. A. Earl, D. Ruffolo, H. L. Pauls, and J. W. Bieber, “Comparison of Three Numerical Treatments of Charged Particle Transport, Proc. 24th Internat. Cosmic Ray Conf., 4, 341 (Rome, Italy, August, 1995)
 
1995 W. Dröge, D. Ruffolo, and B. Klecker, “Probable Detection of Electrons from the Decay of Solar Flare Neutrons,” Proc. 24th Internat. Cosmic Ray Conf., 4, 183 (Rome, Italy, August, 1995)
 
1995 U. Sathanon and D. Ruffolo, “The 1995 total solar eclipse in Thailand,” East Asian Meeting on Ground-Based Astronomy, Tokyo, July, 1995
 
1995 D.Ruffolo, "Simulations of the Interplanetary Transport of Solar Cosmic Rays,” Proc. JSPS-ICRR Internat. Spring School’ 95 (JSPS-ICRR International Spring School on Cosmic Rays in Contemporary Astrophysics, Tokyo, Japan, February, 1995)
 
1994 J. Earl, J. Bieber, H. Pauls, and D. Ruffolo, “Comparison of Three Numerical Treatments of Charged Particle Transport,” Spring Meeting of the American Geophysical Union, 1994
 
1993 D. Ruffolo, “Computer Simulations of Particle Transport in the Interplanetary Medium” (in Thai), Chulalongkorn University Inventions Exhibition, Bangkok, November, 1993
 
1991 D. Ruffolo, “The Interplanetary Transport of Decay Protons from Solar Flare Neutrons,” Bull. Amer. Phys. Soc., 36, 1396 (American Physical Society, Washington, DC, April, 1991)
1990 D. Ruffolo, “A 152 Day Periodicity in Solar Electron Flare Occurrences,” NASA Graduate Student Researchers Program Symposium, Washington, DC, May, 1990
1990 W. Dröge, K. Gibbs, J. Grunsfeld, P. Meyer, B. Newport, D. Ruffolo (presenter), P. Evenson, and D. Moses, “A 153 Day Periodicity in the Occurrence Times of Solar Electron Flares,” Proc. 21st Internat. Cosmic Ray Conf., 5, 92 (Adelaide, Australia, January, 1990)
1990 R. Leske, P. Meyer, B. Milliken, D. Ruffolo, C. Smith, and M. Wiedenbeck, “A High Pressure Gas Ionization Detector for Cosmic Ray Isotope Investigations,” Proc. 21st Internat. Cosmic Ray Conf., 4, 422 (Adelaide, Australia, January, 1990)
1990 R. Leske, P. Meyer, B. Milliken, D. Ruffolo, C. Smith, and M. Wiedenbeck, “Performance of a Position Sensitive Proportional Counter Utilizing a Wedge-Segmented Cathode,” Proc. 21st Internat. Cosmic Ray Conf., 4, 426 (Adelaide, Australia, January, 1990)
1989 D. Ruffolo, R. A. Leske, P. Meyer, C. Smith, and M. E. Wiedenbeck, “Position Sensitive Proportional Counters for an Ionization Chamber,” Bull. Amer. Phys. Soc., 34, 1238 (American Physical Society, Baltimore, MD, May, 1989)
1989 M. E. Wiedenbeck, R. A. Leske, P. Meyer, D. Ruffolo, and C. Smith, “A High Pressure Gas Ionization Detector for Cosmic Ray Isotope Studies,” Bull. Amer. Phys. Soc., 34, 1238 (American Physical Society, Baltimore, MD, May, 1989)
1989 D. Ruffolo, “A Balloon-borne Cosmic Ray Isotope Spectrometer,” NASA Graduate Student Researchers Program Symposium, Washington, DC, May, 1989
1988 D. Ruffolo, “A Position-sensitive Proportional Counter,” NASA Graduate Student Researchers Program Symposium, Washington, DC, May, 1988
1984 D. Ruffolo, J. Grothaus, and P. Boolchand, “Glass Formation and Microstructure of Melt-quenched (Sn2S3)x(Ge2S3)1-x Alloys,” Bull. Amer. Phys. Soc., 29, 468 (American Physical Society, Detroit, MI, March, 1984)
1983 D. Ruffolo, J. Grothaus, and P. Boolchand, “Glass Formation and Microstructure of Melt- quenched (Sn2S3)x(Ge2S3)1-x Alloys,” Ohio Section of the American Physical Society, Oxford, OH, October, 1983

 

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