Publications

* denotes undergraduate author

Most papers have a version freely-available on arXiv and/or the NCSU repository.

For a list of papers with freely-downloadable datasets, click here.

  1. Keith D. Hillaire, Praneshnandan Nithyanandam, Minyung Song, Sahar Rashid Nadimi, Abolfazl Kiani, Michael D. Dickey, Karen E. Daniels. “Interfacial Tension Hysteresis of Eutectic Gallium-Indium” [arXiv]
  2. Stephen L. Strickland, Karen E. Daniels, Michael Shearer. “The Onset Acceleration for Surfactant Covered Faraday Waves” [arXiv]
  3. Anne Voigtländer, Morgane Houssais, Karol A. Bacik, Ian C. Bourg, Justin C. Burton, Karen E. Daniels, Sujit S. Datta, Emanuela Del Gado, Nakul S. Deshpande, Olivier Devauchelle, Behrooz Ferdowsi, Rachel Glade, Lucas Goehring, Ian J. Hewitt, Douglas Jerolmack, Ruben Juanes, Arshad Kudrolli, Ching-Yao Lai, Wei Li, Claire Masteller, Kavinda Nissanka, Allan M. Rubin, Howard A. Stone, Jenny Suckale, Nathalie M. Vriend, John S. Wettlaufer, Judy Q. Yang. “Soft matter physics of the ground beneath our feet.” [arXiv]
  4. Farnaz Fazelpour, Vrinda D. Desai, Karen E. Daniels. “Community detection forecasts material failure in a sheared granular material.” [arXiv]
  5. Keith D. Hillaire, Michael D. Dickey, Karen E. Daniels. “Marangoni Fingering Instabilities in Oxidizing Liquid Metals.” [arXiv]
  6. Scott Lindauer, Carlos P. Ortiz, Robert Riehn, Karen E. Daniels. “Particle Size Effects in Flow-Stabilized Solids.” [arXiv]
  7. Omid Dorostkar, Karen E. Daniels, Dominik Strebel, Jan Carmeliet. “Betweenness centrality illuminates intermittent frictional dynamics.” [arXiv]

  1. Vrinda Desai, Farnaz Fazelpour, Alexander L. Handwerger, Karen E. Daniels. “Forecasting landslides using community detection on geophysical satellite data.” Physical Review E 108, 014901 (2023) [Link] [Data] [arXiv] [News Summary]
  2. Farnaz Fazelpour, Karen E. Daniels. “Controlling rheology via boundary conditions in dense granular flows.” Soft Matter 19, 2168-2175 (2023) [Link] [arXiv]
  3. Lars Kool, Patrick Charbonneau, Karen E. Daniels. “Gardner-like transition from variable to persistent force contacts in granular crystals.” Physical Review E 106: 054901 (2022) [Link] [Data] [arXiv]
  4. Negin Amini, Josh Tuohey, John M. Long, Jun Zhang, David A. V. Morton, Karen Daniels, Farnaz Fazelpour, Karen P. Hapgood. “Photoelastic Stress Response of Complex 3D-Printed Particle Shapes.” Powder Technology 409: 117852 (2022) [arXiv] [Link]
  5. Ryan Kozlowski, Hu Zheng, Karen E. Daniels, Joshua E. S. Socolar. “Stick-slip in a granular material with varying grain angularity.” Frontiers in Physics (2022) [Link]
  6. Théo Jules, Austin Reid, Karen E. Daniels, Muhittin Mungan, Frédéric Lechenault. “One Dimensional Mechanical Memory with Cylindrical Origami” Physical Review Research 4, 013128 (2022) [Link]
  7. Farnaz Fazelpour, Zhu Tang, Karen E. Daniels. “The effect of grain shape and material on the nonlocal rheology of dense granular flows” Soft Matter 18: 1435-1442 (2022) [Link] [arXiv]
  8. Jack Featherstone, Robert Bullard, Tristan Emm, Anna Jackson, Riley Reid, Sean Shefferman, Adrienne Dove, Joshua Colwell, Jonathan E. Kollmer, and Karen E. Daniels. “Stick-slip dynamics in penetration experiments on simulated regolith.” The Planetary Science Journal 2: 243 (2021) [Link]
  9. Ryan Kozlowski, Hu Zheng, Karen E. Daniels, Joshua E. S. Socolar. “Stress propagation in locally loaded packings of disks and pentagons” Soft Matter 17: 10120-10127 (2021) [Link] [arXiv]
  10. Minyung Song, Karen E. Daniels, Abolfazl Kiani, Sahar Rashidnadimi, Michael D. Dickey. “Interfacial Tension Modulation of Liquid Metal via Electrochemical Oxidation.” Advanced Intelligent Systems 3: 2100024 (2021) [Link]
  11. Kuang Liu, Jonathan E. Kollmer, Karen E. Daniels, J. M. Schwarz, Silke Henkes “Sponge-like rigid structures in frictional granular packings.” Physical Review Letters 126: 088002 (2021) [arXiv] [Link]
  12. Minyung Song, Karin Kartawira, Keith D. Hillaire, Cheng Li, Collin B. Eaker, Abolfazl Kiani, Karen E. Daniels, and Michael D. Dickey. “Overcoming Rayleigh-Plateau Instabilities: Stabilizing and Destabilizing Liquid Metal Streams via Electrochemical Oxidation.” PNAS 32: 19026 (2020) [Link] [News Summary] [Video]
  13. Christopher Rock, Rashmi Vadlakonda, Sullivan Figurskey, Christopher Ledford, Harvey West, Victoria Miller, Mark Pankow, Karen E. Daniels, and Tim Horn. “Analysis of Self-Organized Patterned Surface Oxide Spots on Ejected Spatter Produced during Laser Powder Bed Fusion.” Additive Manufacturing 35: 101320 (2020) [Link]
  14. Aaron Bardall, Shih-Yuan Chen, Karen E. Daniels, Michael Shearer. “Gradient Induced Droplet Motion Over Soft Solids.” IMA Journal of Applied Mathematics 85: 495-512 (2020) [Link]
  15. Shih-Yuan Chen, Aaron Bardall, Michael Shearer, Karen E. Daniels. “Distinguishing deformation mechanisms in elastocapillary experiments.” Soft Matter 15: 9426 (2019) [arXiv] [Link]
  16. A. L. Thomas, Zhu Tang, Karen E. Daniels, N. M. Vriend. “Force fluctuations at the transition from quasi-static to inertial granular flow.” Soft Matter 15: 8532 (2019) [Link]
  17. Ryan Kozlowski, C. Manuel Carlevaro, Karen E. Daniels, Lou Kondic, Luis A. Pugnaloni, Joshua E. S. Socolar, Hu Zheng, Robert P. Behringer. “Dynamics of a Grain-Scale Intruder in a 2D Granular Medium with and without Basal Friction.” Physical Review E 100: 032905 (2019) [Link]
  18. Estelle Berthier, Mason A. Porter, Karen E. Daniels. “Forecasting failure locations in two-dimensional disordered lattices.” PNAS 116: 16742 (2019) [News Summary] [Link]
  19. Estelle Berthier, Jonathan E. Kollmer, Silke E. Henkes, Kuang Liu, Jennifer M. Schwarz, Karen E. Daniels. “Rigidity percolation control of the brittle-ductile transition in disordered networks.” Physical Review Materials 3: 075602 (2019) [Link] [Data]
  20. Sarah M Yannarell, Gabrielle M Grandchamp, Shih-Yuan Chen, Karen Daniels, Elizabeth A Shank. “A dual-species biofilm with emergent mechanical and protective properties.” Journal of Bacteriology 201: e00670-18 (2019) [Link]
  21. Ephraim S. Bililign*, Jonathan E. Kollmer, Karen E. Daniels. “Protocol-Dependence and State Variables in the Force-Moment Ensemble.” Physical Review Letters 122, 038001 (2019) [Link] [Synopsis] [Data]
  22. Jonathan E. Kollmer, Karen E. Daniels. “Betweenness Centrality as Predictor for Forces in Granular Packings.” Soft Matter 15, 1793 (2019) [Link] [Data]
  23. Marcel Workamp, Gustavo Ramirez*, Karen E. Daniels and Joshua A. Dijksman. “Symmetry-reversals in chiral active matter.” Soft Matter 14: 5572-5580 (2018) [Link] [PDF][Phys.org Press]
  24. Theodore A. Brzinski and Karen E. Daniels. “The sounds of failure: forecasting granular slip events with passive acoustic measurements.” Physical Review Letters 120: 218003 (2018) [Link] [PDF] [APS Focus]
  25. Zhu Tang, Theodore A. Brzinski, Michael Shearer, and Karen E. Daniels. “Nonlocal rheology of dense granular flow in annular shear experiments.” Soft Matter 14, 3040-3048 (2018).[Link] [PDF] [Data]
  26. Aaron Bardall, Karen E. Daniels, Michael Shearer. “Deformation of an Elastic Substrate Due to a Resting Sessile Droplet.” European Journal of Applied Mathematics. 29: 281-300 (2018) [Link] [PDF]
  27. Dina Sinclair*, Rachel Levy, Karen E. Daniels. “Simulating Surfactant Spreading: Impact of a Physically Motivated Equation of State.” European Journal of Applied Mathematics. 29: 30-54 (2018) [Link] [PDF]
  28. Collin B. Eaker, David C. Hight*, John D. O’Regan*, Michael D. Dickey, Karen E. Daniels. “Oxidation-Mediated Fingering in Liquid Metals” Physical Review Letters 119: 174502 (2017) [Link] [PDF] [Video Abstract] [Press Release]
  29. Marion Grzelka*, Joshua B. Bostwick, and Karen E. Daniels. “Capillary fracture of ultrasoft gels: heterogeneity and delayed nucleation” Soft Matter 13: 2962 (2017) [Link] [PDF]
  30. Yuming Huang and Karen E. Daniels “Friction and Pressure-Dependence of Force Chain Communities in Granular Materials.” Granular Matter. 18: 85 (2016) [Link] [PDF]
  31. Chad Giusti, Lia Papadopoulos, Eli T. Owens, Karen E. Daniels, Danielle S. Bassett. “Topological and geometric measurements of force chain structure.” Physical Review E 94: 032909 (2016) [Link] [PDF]
  32. Lia Papadopoulos, James Puckett, Karen E. Daniels, Danielle S. Bassett. “Evolution of network architecture in a granular material under compression.” Physical Review E 94: 032908 (2016) [Link] [PDF]
  33. Carlos P. Ortiz, Robert Riehn, Karen E. Daniels. “Nonaffine deformation under compression and decompression of a flow-stabilized solid.” Journal of Statistical Mechanics. 084003 (2016) [Link] [PDF]
  34. Junaid M. Laskar, P. Shravan Kumar*, Stephan Herminghaus, Karen E. Daniels, Matthias Schroeter. “High refractive index immersion liquid for super-resolution 3D imaging using sapphire-based aNAIL optics.” Applied Optics. 55, 3165-3169 (2016) [Link] [PDF] [LaserFocusWorld]
  35. Priya Subramanian, Werner Pesch, Oliver Brausch, Karen E. Daniels, Eberhard Bodenschatz, and Tobias Schneider. “Spatio-temporal Patterns in Inclined Layer Convection.” Journal of Fluid Mechanics. 794: 719-745 (2016) [Link] [PDF]
  36. Stephen L. Strickland, Michael Shearer, and Karen E. Daniels. “Spatiotemporal measurement of surfactant distribution on gravity-capillary waves.” Journal of Fluid Mechanics. 777: 523-543 (2015) [Link] [Movies] [Data]
  37. Danielle S. Bassett, Eli T. Owens, Mason A. Porter, M. Lisa Manning, Karen E. Daniels. “Extraction of Force-Chain Network Architecture in Granular Materials Using Community Detection.” Soft Matter 11: 2731-2744 (2015). [Link] [PDF]
  38. Ellen R. Swanson, Stephen L. Strickland, Michael Shearer, Karen E. Daniels. “Surfactant Spreading on a Thin Liquid Film: Reconciling Models and Experiments.” Journal of Engineering Mathematics 94: 63-79 (2015) [Link] [PDF]
  39. Joshua B. Bostwick, Michael Shearer, Karen E. Daniels. “Elastocapillary deformations on partially-wetting substrates: rival contact-line models.” Soft Matter 10: 7361, (2014) [Link] [PDF]
  40. Carlos P. Ortiz, Karen E. Daniels, Robert Riehn. “Nonlinear Elasticity of Flow-Stabilized Solids.” Physical Review E 90: 022304 (2014) [Link] [PDF]
  41. Stephen L. Strickland, Matthew Hin*, M. Richard Sayanagi*, Cameron Gaebler*, Karen E. Daniels, Rachel Levy. “Self-healing Dynamics of Surfactant Coatings on Thin Viscous Films.” Physics of Fluids 26: 042109 (2014) [Link] [PDF]
  42. Karen E. Daniels, Caroline Bauer*, Troy Shinbrot. “Correlations between electrical and mechanical signals during granular stick-slip events.” Granular Matter 16: 217-222 (2014) [Link] [PDF] [APS News]
  43. Gopal G. Penny, Karen E. Daniels, and Sally E. Thompson. “Local properties of patterned vegetation: quantifying endogenous and exogenous effects.” Philosophical Transactions of the Royal Society A. 371: 20120359 (2013) [Link] [PDF]
  44. Joshua B. Bostwick, Karen E. Daniels. “Capillary Fracture of Soft Gels.” Physical Review E 88: 042410 (2013) [Link] [PDF]
  45. James G. Puckett and Karen E. Daniels. “Equilibrating temperaturelike variables in jammed granular subsystems.” Physical Review Letters 110: 058001 (2013) [Link] [PDF] [APS Synopsis]
  46. Eli T. Owens and Karen E. Daniels. “Acoustic measurement of a granular density of modes.” Soft Matter 9:1214 (2013) [Link] [PDF]
  47. Carlos P. Ortiz, Robert Riehn, and Karen E. Daniels. “Flow-Driven Formation of Solid-like Microsphere Heaps.” Soft Matter, 9 (2), 543 – 549, (2013) [Link] [PDF]
  48. Danielle S. Bassett, Eli T. Owens, Karen E. Daniels, Mason A. Porter. “Influence of network topology on sound propagation in granular materials.” Physical Review E 86: 041306 (2012) [Link] [PDF]
  49. James G. Puckett, Frederic Lechenault, Karen E. Daniels, Jean-Luc Thiffeault. “Trajectory entanglement in dense granular materials.” Journal of Statistical Mechanics (2012) P06008 [Link] [PDF]
  50. Kiri Nichol and Karen E. Daniels. “Equipartition of rotational and translational energy in a dense granular gas.” Physical Review Letters 108, 018001 (2012) [Link] [PDF]
  51. Eli T. Owens and Karen E. Daniels. “Sound propagation and force chains in granular materials.” Europhysics Letters 94, 54005 (2011) [Link] [PDF]
  52. Nicholas W. Hayman, Lucie Ducloue*, Kate L. Foco*, Karen E. Daniels. “Granular controls on periodicity of stick-slip events: kinematics and force-chains in an experimental fault.” Pure and Applied Geophysics 168: 2239-2257 (2011) [Link] [PDF]
  53. James G. Puckett, Frederic Lechenault, Karen E. Daniels. “Local origins of volume fraction fluctuations in dense granular materials.” Physical Review E 83, 041301 (2011) [Link] [PDF]
  54. Melissa L. Fender*, Frederic Lechenault, Karen E. Daniels. “Universal shapes formed by two interacting cracks.” Physical Review Letters 105: 125505 (2010) [Link] [PDF]
  55. David W. Fallest, Adele M. Lichtenberger*, Christopher J. Fox*, and Karen E. Daniels. “Fluorescent visualization of a spreading surfactant.” New Journal of Physics 12: 073029 (2010) [Link] [PDF]
  56. Lindsay B. H. May, Michael Shearer and Karen E. Daniels. “Scalar conservation laws with nonconstant coefficients with application to particle size segregation in granular flow.” Journal of Nonlinear Science. 20:689 (2010) [Link] [PDF]
  57. Lindsay B. H. May, Laura A. Golick*, Katherine C. Phillips*, Michael Shearer and Karen E. Daniels. “Shear-driven size segregation of granular materials: modeling and experiment.” Physical Review E 81:051301 (2010) [Link] [PDF]
  58. Frederic Lechenault and Karen E. Daniels. “Equilibration of Granular Subsystems.” Soft Matter. 6: 3074 (2010) [Link] [PDF]
  59. Sally E. Thompson and Karen E. Daniels.”A Porous Convection Model for Small-Scale Grass Patterns.” The American Naturalist. 175: E10-E15 (2010) [Link] [Data]
  60. Laura A. Golick* and Karen E. Daniels. “Mixing and segregation rates in sheared granular materials.” Physical Review E. 80: 042301 (2009) [Link] [PDF]
  61. Karen E. Daniels and Nicholas W. Hayman. “Force chains in seismogenic faults visualized with photoelastic granular shear experiments.” Journal of Geophysical Research, 113: B11411 (2008) [Link] [PDF]
  62. Robert P. Behringer, Karen E. Daniels, Trushant S. Majmudar, and Matthias Sperl. “Fluctuations, correlations and transitions in granular materials: statistical mechanics for a non-conventional system.”
    Philosophical Transactions of the Royal Society A, 366:493-504 (2008) [Link] [PDF]
  63. Karen E. Daniels, Oliver Brausch, Werner Pesch, and Eberhard Bodenschatz. “Competition and bistability of ordered undulations and undulation chaos in inclined layer convection.” Journal of Fluid Mechanics, 597:261-282 (2008) [Link] [PDF]
  64. Karen E. Daniels, Shomeek Mukhopadhyay, Paul J. Houseworth*, and Robert P. Behringer. “Instabilities in droplets spreading on gels.” Physical Review Letters, 99:124501 (2007) [Link] [PDF]
  65. Karen E. Daniels and Robert P. Behringer. “Characterization of a freezing/melting transition in a vibrated and sheared granular medium.” Journal of Statistical Mechanics, page P07018, June 2006. [Link] [PDF]
  66. Karen E. Daniels and Robert P. Behringer. “Hysteresis and competition between disorder and crystallization in sheared and vibrated granular flow.” Physical Review Letters, 94:168001, Apr 29 2005. [Link] [PDF]
  67. Karen E. Daniels, Christian Beck, and Eberhard Bodenschatz. “Defect turbulence and generalized statistical mechanics.” Physica D, 193:208 (2004) [Link] [PDF]
  68. Cristian Huepe, Hermann Riecke, Karen E. Daniels, and Eberhard Bodenschatz. “Statistics of defect trajectories in spatio-temporal chaos in inclined layer convection and the complex Ginzburg-Landau equation.” Chaos, 14:864-874, Sep 2004. [Link] [PDF]
  69. Karen E. Daniels and Eberhard Bodenschatz. “Statistics of defect motion in spatiotemporal chaos in inclined layer convection.” Chaos, 13:55, March 2003. [Link] [PDF]
  70. Karen E. Daniels, Richard J. Wiener, and Eberhard Bodenschatz. “Localized transverse bursts in inclined layer convection.” Physical Review Letters, 91:114501, 2003. [Link] [PDF]
  71. Karen E. Daniels and Eberhard Bodenschatz. “Defect turbulence in inclined layer convection.” Physical Review Letters, 88:034501, January 7 2002. [Link] [PDF]
  72. Karen E. Daniels, Brendan B. Plapp, and Eberhard Bodenschatz. “Pattern formation in inclined layer convection.” Physical Review Letters, 84:5320-5323, June 5 2000. [Link] [PDF]

  1. Douglas J. Jerolmack and Karen E. Daniels. “Viewing Earth’s surface as a soft matter landscape.” Nature Reviews Physics (2019) [arXiv] [Link] [ReadCube]
  2. Agheal Abed-Zadeh; Jonathan Barés; Theodore A. Brzinski; Karen E. Daniels; Joshua Dijksman; Nicolas Docquier; Henry Everitt; Jonathan E. Kollmer; Olivier Lantsoght; Dong Wang; Marcel Workamp; Yiqiu Zhao; Hu Zheng. “Enlightening force chains: a review of photoelasticimetry in granular matter” Granular Matter 21: 83 (2019) [Link] [Link to Bob Behringer Memorial Issue] [Wiki]
  3. Lia Papadopoulos, Mason A. Porter, Karen E. Daniels, Danielle S. Bassett. “Network Analysis of Particles and Grains.” Journal of Complex Networks , 6: 485-565 (2018) [Link]
  4. Axelle Amon, Philip Born, Karen E. Daniels, Joshua A. Dijksman, Kai Huang, David Parker, Matthias Schroeter, Ralf Stannarius, Andreas Wierschem. “Preface: Focus on Imaging Methods in Granular Physics” Review of Scientific Instruments 88, 051701 (2017) [Link] [PDF] [Focus Issue]
  5. Karen E. Daniels, Jonathan E. Kollmer and James G. Puckett. “Photoelastic force measurements in granular materials.” Review of Scientific Instruments 88, 051808 (2017) [Link] [PDF] [PeGS Source Code]
  6. Dapeng Bi, Silke Henkes, Karen E. Daniels, Bulbul Chakraborty. “The Statistical Physics of Athermal Materials.” Annual Review of Condensed Matter Physics 6: 63-83 (2015) [Link] [PDF]
  7. Karen E. Daniels. “Rubble-Pile Near Earth Objects: Insights from Granular Physics.” Asteroids: Prospective Energy and Material Resources. Springer, 2013. [PDF]

  1. Paul Sanchez, Karen Daniels, Heinrich Jaeger, and Troy Shinbrot. “Effects of Reduced Gravity on the Granular Fluid-Solid Transition: Underexplored Forces Can Dominate Soft Matter Behaviors.” NASA Biological and Physical Sciences in Space Decadal Survey 2023-2032. [arXiv]
  2. Karen E. Daniels and Mary Williard Elting. “Knitting Ripples.” Patterns. 1: 3 (2020) [Link]
  3. Bruno Andreotti, Oliver Baeumchen, Francois Boulogne, Karen E. Daniels, Eric R. Dufresne, Hugo Perrin, Thomas Salez, Jacco H. Snoeijer, Robert W. Style. “Solid Capillarity: When and How does Surface Tension Deform Soft Solids?” Soft Matter. 12: 2993-2996 (2016) [Link] [PDF]
  4. Karen E. Daniels. “Viewpoint: Pushing on a Nonlinear Material.” Physics. 7: 113 (2014) [Link]

  1. Jonathan E. Kollmer, Jack Featherstone, Robert Bullard, Tristan Emm, Anna Jackson, Riley Reid, Sean Shefferman, Adrienne Dove, Joshua Colwell, and Karen E. Daniels. “Probing Regolith-Covered Surfaces in Low Gravity.” Powders and Grains 2021. EPJ Web of Conferences 249: 02005 (2021) [Link]
  2. Farnaz Fazelpour and Karen E. Daniels. “The Effect of Boundary Roughness on Dense Granular Flows.” Powders and Grains 2021. EPJ Web of Conferences 249: 03014 (2021) [Link]
  3. Ryan Kozlowski, Hu Zheng, Karen E. Daniels, and Joshua E. S. Socolar. 2021. “Particle Dynamics in Two-Dimensional Point-Loaded Granular Media Composed of Circular or Pentagonal Grains.” Powders and Grains 2021. EPJ Web of Conferences 249: 06010. (2021) [Link]
  4. Jonathan E. Kollmer and Karen E. Daniels. “An experimental investigation of the force network ensemble.” Powders & Grains 2017. EPJ Web of Conferences 140, 02024 (2017) [Link] [PDF]
  5. Zhu Tang, Theodore A. Brzinski, and Karen E. Daniels. “Granular rheology: measuring boundary forces with laser-cut leaf springs.” Powders & Grains 2017. EPJ Web of Conferences 140, 03035 (2017) [Link] [PDF]
  6. Karen E. Daniels. “The role of force networks in granular materials.” Powders & Grains 2017. EPJ Web of Conferences 140, 01006 (2017) [Link] [PDF]
  7. Jonathan E. Kollmer, Scott M. Lindauer, and Karen E. Daniels. “Digging on Asteroids: a Laboratory Model of Granular Dynamics in Microgravity.” ASCE Proceedings for Earth & Space Conf. (2016) [Link]
  8. Matthias Schroeter, Karen E. Daniels. ”Granular segregation in dense systems: the role of statistical mechanics and entropy.” [arXiv]
  9. Michael Shearer, Lindsay B. H. May, N. Giffen, and Karen E. Daniels. “The Gray-Thornton Model of Granular Segregation.” Proceedings of Joint IUTAM-ISIMM Symposium on Mathematical Modeling and Physical Instances of Granular Flows, AIP Conference Proceedings (2010) J. D. Goddard (ed.) [Link] [PDF]
  10. James G. Puckett, Frederic Lechenault and Karen E. Daniels. “Generating Ensembles of 2D Granular Configurations.” Chaos (Gallery of Nonlinear Images). 19: 041108 (2009). [Link] [PDF]
  11. James G. Puckett, Frederic Lechenault and Karen E. Daniels. “Generating ensembles and measuring mixing in a model granular system.” Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media, p. 675-678 (2009) [Link] [PDF]
  12. Karen E. Daniels and Nicholas W. Hayman. “Boundary conditions and event scaling of granular stick-slip events.” Powders and Grains 2009: Proceedings of the 6th International Conference on
    Micromechanics of Granular Media
    , p. 567-570 (2009) [Link] [PDF]
  13. Eli T. Owens, Stephanie Couvreur* and Karen E. Daniels. “Spatiotemporally Resolved Acoustics in a Photoelastic Granular Material.” Powders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media, p. 447-450 (2009) [Link] [PDF]
  14. Karen E. Daniels, Shomeek Mukhopadhyay, and Robert P. Behringer. “Starbursts and wispy drops: Surfactants spreading on gels.” Chaos, 15:041107, 2005. (Gallery of Nonlinear Images)
    [Link] [PDF]
  15. Karen E. Daniels, Joyce E. Coppock*, and Robert P. Behringer. “Dynamics of meteor impacts.” Chaos, 14:S4, Dec 2004. (Gallery of Nonlinear Images) [Link] [PDF]