Paul Kah is currently working as a professor in welding technology at the Department of Engineering Science, University West, Trollhättan, Sweden. Professor Kah's research focuses on welding technology and, more specifically, process control systems for optimization of arc welding processes for improved weld quality. Additional research interests include research in the application of artificial intelligence systems in gas metal arc processes as a way to meet welding challenges and improve systems integration, welding economy and quality, the weldability of high-strength steels, and aluminium and dissimilar welds. His scientific activity includes being a coordinator and researcher in academic scientific and industrial projects in research, technology transfer and education funded by national and international authorities. Prof Kah has established scientific collaborations with many universities in Africa, the EU and China. Prof. Kah has a large number of publications, which include more than a hundred scientific articles in Scopus and Web of Knowledge and other articles in peer-reviewed conference proceedings. Prof. Kah is a delegate in the International Institute of Welding (IIW) Commission XII and reviewer of the journal Welding in the World. Prof. Kah is the President of the Cameroon Welding Association, a member country of the International Institute of Welding IIW.