Ph.D. Mechanical Engineering, Michigan State University, East Lansing MI, 1986
M.S. Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis MN, 1979
B.S. Engineering Science, Iowa State University, Ames IA, 1977
Areas of Research / Professional Expertise
Green's Functions

Objective: develop analytical solutions to engineering problems with advanced mathematical tools, and to promote these techniques in print publications and on the internet. The Green's Function Library, established in 1999, is a resource for engineers, scientists, mathematicians, geologists, or anyone working with linear differential equations of the diffusion type. For more information, visit

Biomedical Devices

Objective: develop replacement heart valves designed for infants with profound birth defects, by carrying out laboratory fluid-flow tests and computational simulations.

Fluid-flow Sensors

Objective: develop fluid-flow sensors based on thermal measurements. Recently this work was extended to thermal effects in microchannels, with application in electronic cooling and in lab-on-a-chip testing devices, for example.

Inverse Problems

Objective: determine optimal methods to measure thermal properties and gas-diffusion properties, and to analyze experimental data to extract the maximum information from the experiment.
Personal Interests
Bicycling, travel, choral singing