I have 48 years of experience, and specialize in the field of materials science with specific knowledge in the areas of polymer materials, solidification and crystallization and structure characterization. I have published on such topics as polymer crystallization, diffraction theory and mechanical failure. I am the author of 200+ papers, largely on polymer materials (structure, structure development, and properties), synthetic fibers, and diffraction theory and methodology. I am the author of books on polymer materials, failure of polymers, diffraction theory, and polymer crystallization. I have also edited several books on like areas. I am associate editor of a journal in the polymer field.