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Photo of JR Macdonald, 2007.

Ross Macdonald has published over 200 papers in the fields of physics, chemistry, applied mathematics, and electrical engineering, and he holds ten patents.

He was editor, and a major contributor to the book, >Impedance Spectroscopy-Emphasizing Solid Materials and Systems, John Wiley, 1987, the first book in this field. He has recently co-edited the second edition of the book, >Impedance Spectroscopy - Theory, Experiment, and Applications.

He is also the author of two freely available software programs.  GENLS is a generalized nonlinear least squares fitting program appropriate when both the dependent and independent variables contain significant errors. 

*LEVM/LEVMW is an extensive and powerful complex nonlinear least squares program for fitting, simulation, and inversion of frequency and time domain data sets.  It has been optimized for analyzing electrochemical, dielectric, or high-resistivity conductive-system data.

*A short summary describing a widely applicable and superior data fiitting approach, the CK1 model, using LEVM/LEVMW, is available for downloading.

Dr Macdonald worked at Texas Instruments from 1953-1974, where he built up a very productive Physics Research Laboratory, then was primarily responsible for the growth and excellence of TI's Central Research Laboratories over a 10-year period. As corporate Vice President for Research, Development, and Engineering, he played an important role in the creation, management, and evaluation of technical projects in all divisions of Texas Instruments.

Subsequently at the University of North Carolina, Chapel Hill, Dr. Macdonald became a member of the Department of Physics and Astronomy. He retired from teaching in 1989 but continues research in condensed matter physics, in electrochemistry areas, and in data analysis methods.

Copyright © 2005-2008, James Ross Macdonald; All rights reserved
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