This paper proposes an unconventional anomaly detection approach that provides digital instrumentation and control (I&C) systems in a nuclear power plant (NPP) with the capability to probabilistically discern between legitimate protocol frames and attack frames. The stochastic activity network (SAN) formalism is used to model the fusion of protocol activity in each digital I&C system and the op...

Experience of the March 11 2011, Great Tohoku earthquake clearly demonstrated that the earthquakes might be the dominating contributors to the overall risk of nuclear power plants (Institute of Nuclear Power Operations [INPO], 2011); International Atomic Energy Agency [IAEA], 2007). The seismic probabilistic safety assessments of several nuclear power plants also provided similar results. On th...

The paper presents the world state-of-the-art of the Nuclear Power Plants (NPPs) provided with seismic isolation and focuses on the main problems related to the application of this technology to so peculiar structures, characterized by high masses, large sizes and severe safety requirements due to the possibility of relevant accidents with release of radioactivity and other extremely dangerous ...

Recently, the use of computers has rapidly expanded in every field of human endeavor. From the viewpoint of research on human-machine systems, we see that computers do many tasks automatically at the human-machine interface. Because computers themselves are machines, modern machine systems have a double structure of machines within machines; that is, the original machines built-in computers. Th...

Abstract: Nelson (1981), Gamble and Downing (1982) and Clark et al. (1997) found no detrimental external effects of nuclear power plants when studying the distance gradient for housing prices within a hedonic model. Other papers, Clark and Nieves (1994) and Folland and Hough (1991), found significant negative effects of nuclear power when studying real asset prices in cross-sections of broad ma...

Nuclear energy becomes a major energy source worldwide even though the debating environmental and safety dispute. In order to cope with the issues related to the nuclear power plant, the uncertain human factors need to be minimized by automating the inspection and maintenance work done by human workers. The demands of robotic system in nuclear industry have been growing to ensure the safety of ...

Between 1972 and 2007 altogether 17 major terror attacks or acts of sabotage have been carried against nuclear power plants (NPP). None of them resulted in an uncontrolled radioactive release. In order to reduce the security risk to NPP due to terrorists in the future, preemptive measures are necessary to identify their motivation, incentives, operational and logistical capabilities to implemen...

Safety in nuclear power plants (NPPs) in India is a very important topic and it is necessary to dissipate correct information to all the readers and the public at large. In this article, I have briefly described how the safety in our NPPs is maintained. Safety is accorded overriding priority in all the activities. NPPs in India are not only safe but are also well regulated, have proper radiolog...

Conventional nuclear power reactors have almost reached a power size limit after pursuing the economies of scale by building larger plants. Future directions in which nuclear power can be effectively developed are unlikely to be toward larger sizes. Currently it is almost impossible to find new sites for larger plants in the developed countries; larger plants also pose a large economic risk tha...