**Stephen A Pennell**Professor

**College**College of Sciences**Department**Mathematical Science**Phone**(978) 934-2710**Office**Olney Hall - 428J**Email**Stephen_Pennell@uml.edu**Profile URLs**

## 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

## 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*

## 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: pp. 51–57 **Pennell, S.A.**, Avitabile, P., White, J. (2009) "An engineering-oriented approach to the introductory differential equations course,"*PRIMUS*19:1 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 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 pp. 102-104 **Pennell, S.A.**, Graham-Eagle, J. (1996) "Sessile Drops on Slightly Uneven Hydrophilic Surfaces,"**Pennell, S.A.**, Mirie, R. (1995) "Weak oblique collisions of interfacial solitary waves,"*Wave Motion*21:4 pp. 385-404**Pennell, S.A.**(1990) "A note on exact relations for solitary waves,"*Physics of Fluids A*2:2 pp. 281-284**Pennell, S.A.**, Deignan, J. (1989) "Computing the projected area of a cone,"*SIAM Review*31:2 pp. 299-302- Mirie, R.M.,
**Pennell, S.A.**(1989) "Internal solitary waves in a two-fluid system,"*Physics of Fluids A*1:6 pp. 986-991 **Pennell, S.A.**(1987) "ON A SERIES EXPANSION FOR THE SOLITARY WAVE.,"*Journal of Fluid Mechanics*179: pp. 557-561**Pennell, S.A.**, Su, C.H. (1984) "SEVENTEENTH-ORDER SERIES EXPANSION FOR THE SOLITARY WAVE.,"*Journal of Fluid Mechanics*149: pp. 431-443

## 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*

## 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*