Recently he volunteered to walk across campus for a meeting, a prospect that makes many younger UH employees grumble. He arrived full of energy. Give him an excuse, and he'll launch into a mathematical description of his latest research. His enthusiasm is infectious, earning him the respect of students. Former students praise him for taking a personal interest in their progress.
Tiller always has a personal touch, they say.
For example, depending on the size of the class, he tries to invite his students to lunch with him and his wife, Martha, a retired education professor. Dr. Tiller is one of the best chemical engineering professors here. The filtration and solid liquid separation field isn't glamorous like building bridges or airplanes, but it's the kind of field where your work seeps into the infrastructure of modern society. While filtration and separation aren't even study options at some schools. Tiller teaches in part to keep the field vibrant.