Science, technology, engineering, and mathematics – collectively known as STEM – are rapidly advancing fields in their own rights. As a book series, Current STEM aims to be a friendly forum for both academic researchers and industrial practitioners to present their work as book chapters. Hence, the chapters should be varied, and this is intended. Current STEM encompasses the type of work to encourage a generation of researcher-practitioners. The authors and editor hope this inaugural volume will be a pleasure to a wide audience.