Vladivoj Valković is a retired professor of physics, a fellow of the American Physical Society and Institute of Physics, and the founder and director of the Croatian-based company Analysis & Control Technologies Ltd. (A.C.T.d.o.o.), which implements environmental security projects. Dr. Valković has authored 13 books and more than 380 scientific and technical papers in many journals. His research interests include nuclear physics and the application of instrumentation and techniques to problems in biology, medicine, environmental research, and trace element analysis. He recently developed the idea of autonomous ship container inspection.