Emeritus Professor from 30th September 2004.
Formerly Fellow of the Institute of Materials, Minerals and Mining (formerly Fellow of the Plastics and Rubber Institute).
Formerly Member of the Institute of Mathematics and its Applications (and Chartered Mathematician).
Rheology and non-Newtonian Fluid Mechanics; modelling of polymer processing; extensional flow.
Mathematical modelling and applications of mathematics in engineering.
Former Editorial Board Member: Journal of Non-Newtonian Fluid Mechanics, (Elsevier, Holland)
Former Editorial Board Member: Applied Rheology (ETHZ, Zurich)
Former Editorial Board Member: Plastics, Rubber and Composites (IoMMM, London) until retirement
Former Editorial Board Member: Archives of Mechanics (Polish Academy of Sciences, Warsaw) until retirement
Former chairman, European Society of Rheology's Sub Committee on Rheological Expertise in Europe.
Former Council Member and Chair of Web Sub Committee for the British Society of Rheology.
Invited Plenary Lecturer, Conference on Extensional Flow, Lake Vyrnwy, Wales, March 2005.
Invited Participant at the Isaac Newton Institute for Mathematical Sciences workshop, "Dynamics of Complex Fluids: 10 Years On", October 2006.
Invited Participant at the Isaac Newton Institute for Mathematical Sciences programme, "Foams and Minimal Surfaces", August 2002.
Mini Symposium Co Chairman at the Annual Conference of the Polymer Processing Society (PPS-16), Montreal, 2001.
Two papers (One Hundred Years of Extensional Flow (137(1-3), pp1-14) and Extensional Viscosity: A Critical Discussion (137(1-3), pp15-23)) listed in Journal of Non-Newtonian Fluid Mechanics’ top 20 dowloads of 2006.