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Stephen Pennell


Stephen Pennell
Stephen A PennellProfessor
  • College
    College of Sciences
  • Department
    Mathematical Science
  • Phone
    (978) 934-2710
  • Office
    Olney Hall - 428J
  • Email
  • Profile Links

Research Interests

Mathematical modeling, fluid flow

Nonlinear wave propagation and interaction, drop shape analysis

Education

  • Ph D: Applied Mathematics, (1982), Brown University - Providence, RI
    Dissertation/Thesis Title: Solitary waves of large amplitude
  • MS: Applied Mathematics, (1979), Brown University - Providence, RI
  • BS: Mathematics, (1977), Rensselaer Polytechnic Institute - Troy, NY

Selected Awards and Honors

  • Exceeding Expectations Teaching Award (2012), Teaching - Student Government Association
  • Dept. of Athletics Teaching Award (2009), Teaching - UML
  • Student Organization Advisor of the Year (2007), Leadership - UML
  • Exceeding Expectations Teaching Award (2006), Teaching - Student Government Association
  • Listed in Who's Who Among America's Teachers (2005), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (2004), Teaching - UML
  • Exceeding Expectations Teaching Award (2004), Teaching - Student Government Association
  • Listed in Who's Who Among America's Teachers (2004), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (1999), Teaching - UML
  • UML Disability Services Recognition Award (1999), Service, Community - UML
  • Listed in Who's Who Among America's Teachers (1998), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (1997), Teaching - UML
  • Dept. of Athletics Teaching Award (1997), Teaching - UML
  • UML Council on Undergraduate Teaching Award (1993), Teaching

Selected Publications

  • Zhu, B., Pennell, S.A., Ryan, D.K. (2014). Characterizing the interaction between uranyl ion and soil fulvic acid using parallel factor analysis and a two-site fluorescence quenching model. Microchemical Journal, 115 51–57.
  • Pennell, S.A., Avitabile, P., White, J. (2009). An engineering-oriented approach to the introductory differential equations course. PRIMUS, 19(1) 88-99.
  • Inyang, H.I., Rossi, L., Graham-Eagle, J., Pennell, S.A., Menezes, G.B. (2007). Modelling smectite illitization in earthen barriers of buried radioactive wastes. Geomechanics and Geoengineering, 2(2) 87-95.
  • Golomb, D., Pennell, S.A., Ryan, D., Barry, E., Swett, P. (2007). Ocean sequestration of carbon dioxide: Modeling the deep ocean release of a dense emulsion of liquid CO2-in-water stabilized by pulverized limestone particles. Environmental Science and Technology, 41(13) 4698-4704.
  • Pennell, S.A., Avitabile, P., White, J.R. (2005). An interdisciplinary, multisemester project relating differential equations and engineering.
  • Rossi, L., Inyang, H., Graham-Eagle, J., Pennell, S.A. (2005). Closure to “A Model of Coupled Heat and Moisture Transport in an Annular Clay Barrier” by L. Rossi, HI Inyang, J. Graham-Eagle, and S. Pennell. Journal of Environmental Engineering, 131(11) 1615–1616.
  • Prunty, L., Rossi, L., Inyang, H.I., Graham-Eagle, J., Pennell, S.A. (2005). Discussion of "A model of coupled heat and moisture transport in an annular clay barrier" by L. Rossi. H. I. Inyang, J. Graham-Eagle, and S. Pennell. Journal of Environmental Engineering, 131(11) 1614-1616.
  • Rossi, L., Inyang, H., Graham-Eagle, J., Pennell, S.A. (2004). A model of coupled heat and moisture transport in an annular clay barrier. Journal of Environmental Engineering, 130(8) 855–862.
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (2004). A Modified Multisite Stern-Volmer Equation for the Determination of Conditional Stability Constants and Ligand Concentrations of Soil Fulvic Acid with Metal Ions. Analytical Chemistry, 76(3) 848-854.
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (2003). Multi-wavelength fluorescence-quenching model for determination of Cu2+ conditional stability constants and ligand concentrations of fulvic acid. Applied Spectroscopy, 57(4) 454-460.
  • Graham-Eagle, J., Pennell, S.A. (2000). Contact angle calculations from the contact/maximum diameter of sessile drops. International journal for numerical methods in fluids, 32(7) 851–861.
  • Amirfazli, A., Graham-Eagle, J., Pennell, S.A., Neumann, A. (2000). Implementation and examination of a new drop shape analysis algorithm to measure contact angle and surface tension from the diameters of two sessile drops. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 161(1) 63–74.
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (1998). A multi-site data treatment for modeling the fluorescence enhancement of fulvic acid caused by the binding of aluminum. ACS Division of Environmental Chemistry, Preprints, 38(2) 102-104.
  • Pennell, S.A., Graham-Eagle, J. (1996). Sessile Drops on Slightly Uneven Hydrophilic Surfaces (1:).
  • Pennell, S.A., Mirie, R. (1995). Weak oblique collisions of interfacial solitary waves. Wave Motion, 21(4) 385-404.
  • Pennell, S.A. (1990). A note on exact relations for solitary waves. Physics of Fluids A, 2(2) 281-284.
  • Pennell, S.A., Deignan, J. (1989). Computing the projected area of a cone. SIAM Review, 31(2) 299-302.
  • Mirie, R.M., Pennell, S.A. (1989). Internal solitary waves in a two-fluid system. Physics of Fluids A, 1(6) 986-991.
  • Pennell, S.A. (1987). ON A SERIES EXPANSION FOR THE SOLITARY WAVE. Journal of Fluid Mechanics, 179 557-561.
  • Pennell, S.A., Su, C.H. (1984). SEVENTEENTH-ORDER SERIES EXPANSION FOR THE SOLITARY WAVE. Journal of Fluid Mechanics, 149 431-443.

Selected Presentations

  • Vertical Teams: The Power of Partnerships with Middlesex Community College, UMass Lowell and Lowell Public Schools - Education for the Future, April 2010 - Merrimack College
  • Teaching differential equations with an engineering focus - American Society for Engineering Education annual meeting, June 2006 - Chicago, IL
  • The unreasonable effectiveness of mathematics - Colby-Sawyer College Natural Sciences Department Seminar, February 2005
  • Mathematical Models of Two Groundwater Flow Systems - University of Massachusetts CCES Seminar, February 2002
  • Determination of the shape of slightly asymmetric sessile drops from diameter measurements - Annual meeting of the Society for Industrial and Applied Mathematics, July 1997 - Stanford University
  • Sessile drops on slightly uneven hydrophilic surfaces - Annual meeting of the American Physical Society Division of Fluid Dynamics, November 1996 - Syracuse
  • Weak oblique collisions of interfacial solitary waves - University of Massachusetts Lowell Electrical Engineering Seminar, April 1995
  • A variational method for computing the shape of pendant and sessile liquid drops - University of Massachusetts Lowell Mathematics Colloquium, April 1995
  • Oblique collisions of interfacial solitary waves - Annual meeting of the American Physical Society Division of Fluid Dynamics, November 1994 - Atlanta
  • Oblique collisions of solitary waves - Nonlinear Study Group Colloquium, October 1993 - University of New Hampshire
  • Mathematical, Graphing, and Animation - Teaching with Technology Symposium, April 1993 - U. Mass. Lowell
  • Calculus in a Real and Complex World: An Alternative Calculus Sequence - U. Mass. Lowell Math Education Colloquium, February 1993
  • Oblique collisions of solitary waves - U. Mass. Lowell Applied Math/Statistics Seminar, September 1992
  • On weak oblique collisions of solitary waves - Wave Phenomena II: Modern Theory and Applications, September 1992 - University of Alberta, Edmonton
  • Generalized matrix inverses, November 1988 - Rhode Island College, Providence, RI
  • Internal solitary waves in a two-fluid system - SIAM annual meeting, July 1988 - Minneapolis, MN
  • Interaction of oceanic surface and internal waves - Brown University Applied Mathematics Seminar, December 1986
  • Interaction of surface and internal waves in the ocean, October 1985 - Alphatech, Burlington, MA
  • A series expansion for the solitary wave - SIAM annual meeting, July 1984 - Seattle, WA
  • Introduction to the theory of water waves - University of Lowell Applied Mathematics Seminar, October 1983
  • Shallow water waves and the Korteweg-deVries equation - University of Lowell Applied Mathematics Seminar, October 1983
  • Solitary waves of large amplitude - University of Lowell Applied Mathematics Seminar, October 1982

Selected Contracts, Fellowships, Grants and Sponsored Research

  • Honors Program Development Grant (2000), Grant - Massachusetts Board of Higher Education
  • Consultant Contract (1999), Contract - Town of Rowley, MA
  • Research Contract (1987), Contract - Sanford Ecological Associates
  • Co-PI: Multi-Semester Interwoven project for teaching basic core STEM material critical to solving dynamic systems problems (2003), Grant - National Science Foundation
  • (REMS)2 program (1994), Sponsored Research - Merrimack Education Center
  • Summer Faculty Fellowship (1986), Fellowship - Office of Naval Research
  • Summer Faculty Fellowship (1985), Fellowship - Office of Naval Research