In this volume, recent research on nuclear power plants is presented across four chapters. Chapter One reviews the digital instrumentation and control systems in a representative pressurized water reactor plant as well as the reported work on developing platforms for conducting cybersecurity investigations and examining the response of such a plant to simulated cyberattacks. Chapter Two develops a data-driven approach that improves the accuracy of schedule and cost estimation for nuclear power plant projects using data mining techniques. Chapter Three estimates the social costs of emissions from fission and nuclear fusion power plants by modifying the existing and related global coefficients. Lastly, Chapter Four characterizes the balances of properties and efficiencies of processes occurring in nuclear reactions.