Publications
Recent Invited Presentations
Recent Conference Presentations
Other research highlights
Publications:
K. J. Ford, J. F. Gilchrist, and H. S. Caram, "Power Consumption and Granular Flow in a Vibro-Fluidized Stirred Granular Bed", submitted.
P. Kumnorkaew, Y. Ee, N. Tansu, and J. F. Gilchrist, "Investigation of the Deposition of Microsphere Monolayers for Fabrication of Microlens Arrays", Langmuir, DOI: 10.1021/la801100g. (pdf)
C. Gao and J. F. Gilchrist, "Shear-Induced Particle Migration in 1D, 2D, and 3D Flows", Physical Review E, 77, 025301, 2008. (pdf)
Y. K. Ee, R. A. Arif, N. Tansu, P. Kumnorkaew, and J. F. Gilchrist, "Enhancement of Light Extraction Efficiency of InGaN Quantum Wells Light Emitting Diodes Using SiO2 Microspheres", Applied Physics Letters, 91, 221107, 2007. (pdf)
J. F. Gilchrist, A. T. Chan, E. R. Weeks, and J. A. Lewis, "Phase Behavior and 3D Structure of Strongly Attractive Microsphere-Nanoparticle Mixtures", Langmuir, 24, 11040, 2005. (pdf)
J. F. Gilchrist and J. M. Ottino, "Competition Between Chaos and Order: Mixing and Segregation in a Spherical Tumbler", Physical Review E, 68, 061303, 2003. (pdf)
K. M. Hill, D. V. Khakhar, J. F. Gilchrist, J. J. McCarthy, and J. M. Ottino, "Segregation-Driven Organization in Chaotic Granular Flows", Proceedings of the National Academy of Sciences, 96(21), pp. 11701-11706, 1999. (Cover Article) (pdf)
K. M. Hill, J. F. Gilchrist, D. V. Khakhar, J. J. McCarthy, and J. M. Ottino, "Mixing of Granular Materials: A Test-Bed Dynamical System for Pattern Formation", International Journal of Bifurcation and Chaos, 9, pp. 1467-1484, 1999. (Cover Article) (pdf)
D. V. Khakhar, J. J. McCarthy, J. F. Gilchrist, and J. M. Ottino, "Chaotic mixing of granular materials in two-dimensional tumbling mixers", Chaos, 9(1), pp. 195-205, 1999. (pdf)
Other Refereed Publications:
Y. K. Ee, P. Kumnorkaew, R. A. Arif, J. F. Gilchrist, and N. Tansu, "Enhancement of Light Extraction Efficiency of InGaN Quantum Wells LEDs Using SiO2 Microspheres", in Proc. of the IEEE/OSA Conference on Lasers and Electro-Optics (CLEO) 2007, Baltimore, MD, May 2007.
Y. K. Ee, P. Kumnorkaew, R. A. Arif, H. Tong, J. F. Gilchrist, and N. Tansu, "Comparison of Numerical Modeling and Experiments of InGaN Quantum Wells Light Emitting Diodes with SiO2 / Polystyrene Microlens Arrays", in Proc. of the SPIE Photonics West 2007, Light-Emitting Diodes: Research, Manufacturing, and Applications XII, San Jose, CA, Jan 2008.
Y. K. Ee, P. Kumnorkaew, R. A. Arif, J. F. Gilchrist, and N. Tansu, "Size Effect of SiO2 / Polystrene Microspheres in the Enhancement of Light Extraction Efficiency of InGaN Quantum Wells LEDs", in Proc. of the IEEE/OSA Conference on Lasers and Electro-Optics (CLEO) 2008, San Jose, CA, May 2008.
Patents:
Nelson Tansu, Yik Khoon Ee, James F. Gilchrist, Pisist Kumnorkaew, and Ronald A. Arif, Novel techniques to achieve large light extraction efficiency of nitride-based LEDs using a low cost and straight forward approach. More information here.
Theses:
K. J. Ford, Experimental Investigation of Phase Behavior and Dynamics of Vertically Vibrated Deep Granular Beds, Lehigh University, 2008.
J. F. Gilchrist, Geometric Aspects of Mixing and Segregation in Granular Tumblers, Northwestern University, 2003
Recent Invited Presentations:
J. F. Gilchrist, "Particle Migration and Self-Organization in Simple and Chaotic Flows", Department of Chemical Engineering, University of Notre Dame, January 2009
J. F. Gilchrist, "Particle Migration and Self-Organization in Simple and Chaotic Flows", Department of Mechanical Engineering, University of Maryland, Baltimore County, December 2008
J. F. Gilchrist, "Particle Migration and Self-Organization in Simple and Chaotic Flows", Department of Chemical Engineering, Penn State University, October 2008
J. F. Gilchrist, "Particle Migration and Self-Organization in Simple and Chaotic Flows", Department of Chemical and Biomolecular Engineering, Johns Hopkins University, February 2008
J. F. Gilchrist, "Suspension mixing and segregation in 1D, 2D, and 3D flows", Fifth International Conference on Nanochannels, Microchannels and Minichannels, Universidad De Las Americas Puebla, Mexico, June 2007
J. F. Gilchrist, "Competition Between Chaotic Mixing and Particle Self-Organization in Granular Tumblers and Microchannels", Department of Chemical Engineering, Rutgers University, December 2006
J. F. Gilchrist, "Competition Between Chaotic Mixing and Particle Self-Organization in Granular Tumblers and Microchannels", W. G. Pritchard Lab Seminar Series, Department of Mathematics, Penn State University, October 2006
J. F. Gilchrist, "Competition Between Chaotic Mixing and Particle Self-Organization in Granular Tumblers and Microchannels", Department of Chemical Engineering, Washington University, April 2006
J. F. Gilchrist, "Competition Between Chaotic Mixing and Particle Self-Organization in Granular Tumblers and Microchannels", Department of Chemical Engineering, Columbia University (Special IGERT seminar, sponsored jointly with City College Chemical Engineering), April 2006
J. F. Gilchrist, "Competition Between Chaotic Mixing and Segregation in Granular Tumblers and Microchannels", Department of Physics, Lehigh University, December 2005
J. F. Gilchrist, "Competition Between Mixing and Segregation in Granular Tumblers", SIAM Conference on Applications of Dynamical Systems, May 2005
J. F. Gilchrist, "Use of Microsphere-Nanoparticle Systems for Biological Sensors", Center for Optical Technologies, Lehigh University, May 2005
J. F. Gilchrist, "Dynamic Particle Self-Organization from Meters to Nanometers", Department of Materials Science and Engineering, Lehigh University, May 2005
J. F. Gilchrist, "Behavior of Microsphere-Nanoparticle Mixtures", Microsystems Seminar, Cornell University, March 2005
Recent Conference Presentations:
C. Gao and J. F. Gilchrist, "Shear-induced migration in microchannel flows", 11th Tiger-Hen-Hawk Rheology Symposium, University of Delaware, April 2008.
P. Kumnorkaew, Y. K. Ee, N. Tansu and J. F. Gilchrist, "Self-Assembled Polystyrene-Silica Microlens Arrays"(poster), 11th Tiger-Hen-Hawk Rheology Symposium, University of Delaware, April 2008.
P. Kumnorkaew, Y. K. Ee, N. Tansu and J. F. Gilchrist, "Self-Assembled Polystyrene-Silica Microlens Arrays"(poster), Polymer Nanocomposites, Lehigh University, March 2008.
P. Kumnorkaew, Y. K. Ee, N. Tansu and J. F. Gilchrist, "Rapid Convective Deposition Of Microsphere Monolayers For Fabrication Of Microlens Arrays", AIChE Annual Meeting, November 2007.
J. F. Gilchrist and C. Gao, "Shear-Induced Migration Of Suspensions In 1D, 2D, And 3D Microchannel Flows", AIChE Annual Meeting, November 2007.
K. J. Ford, J. F. Gilchrist, and H. S. Caram, "Power Consumption And Granular Flow In A Vibro-Fluidized Stirred Granular Bed", AIChE Annual Meeting, November 2007.
J. F. Gilchrist and C. Gao, "Shear-induced migration of suspensions in 1D, 2D, and 3D open flows", The Society of Rheology 79th Annual Meeting, October 2007.
C. Gao and J. F. Gilchrist, "Shear-induced migration of suspensions in 3D microfluidic geometries", ACS Colloids and Surface Science Symposium, June 2007.
P. Kumnorkaew, Y. K. Ee, N. Tansu, J. F. Gilchrist, "Deposition of microsphere monolayers for microlens arrays", ACS Colloids and Surface Science Symposium, June 2007.
J. F. Gilchrist, K. J. Ford, and H. S. Caram, "Power dissipation and fluidization in a vibrated/stirred granular flow", APS Division of Fluid Dynamics, November 2006.
J. F. Gilchrist, K. J. Ford, and H. S. Caram, "Flow Transitions in a Model High Shear Granulator", AIChE Annual Meeting, November 2006.
J. F. Gilchrist and C. Gao, "Competition between Particle Migration and Chaotic Advection in Microchannels", AIChE Annual Meeting, November 2006.
J. F. Gilchrist, K. J. Ford, and H. S. Caram, "Transitions in a vibrated/stirred granular flow", The Society of Rheology 78th Annual Meeting, October 2006.
J. F. Gilchrist and C. Gao, "Particle migration in 1D, 2D, and 3D microchannel flows", The Society of Rheology 78th Annual Meeting, October 2006.
K. J. Ford, J. F. Gilchrist, and H. S. Caram, "Agitation and Mixing in Vibrated Beds", AIChE Spring National Meeting, April 2006.
J. F. Gilchrist and C. Gao, "Particle migration of a Brownian suspension in simple and chaotic pressure-driven microchannel flows", APS Division of Fluid Dynamics, November 2005.
J. F. Gilchrist, A. T. Chan, J. A. Lewis, and E. R. Weeks, "Phase Behavior and Structure of Strongly Adsorbing Microsphere-Nanoparticle Systems", ACS Colloids and Surface Science Symposium, June 2005.
J. F. Gilchrist, A. T. Chan, J. A. Lewis, and E. R. Weeks, "Structure of Strongly Adsorbing Microsphere - Nanoparticle Mixtures", APS Division of Fluid Dynamics, November 2004
J. F. Gilchrist, A. T. Chan, J. A. Lewis, and E. R. Weeks, "Phase Behavior and Structure of Strongly Adsorbing Microsphere-Nanoparticle Systems", AIChE Annual Meeting, November 2004
Other research highlights:
January, 2008: Microlens arrays improve the extraction efficiency of nitride LEDs
October, 2007: Particle flows: "Not all stirring is equal"
October, 2007: More efficient LEDs for a brighter future
June, 2006: Revenge of the NIRTs, Part II
Image of the Week, Beckman Institute, University of Illinois, 2004.
Cover Art from our article in PNAS.
Cover Art from our article in IJBC.
Cover Art from the article by J. M. Ottino, "Complex Systems", AIChE Journal, 49, 2, 2003.
Disclaimer: Publications downloaded from this website are to be used for educational purposes only. To obtain an official copy of any of these articles, contact the individual publishers.
gilchrist@lehigh.edu