Joanna Soszynska-Budny

Bio: Joanna Soszynska-Budny is an academic researcher. The author has contributed to research in topics: Critical infrastructure & Reliability (statistics). The author has an hindex of 9, co-authored 112 publications receiving 560 citations.

Reliability and Safety of Complex Technical Systems and Processes: Modeling - Identification - Prediction - Optimization

Abstract: Reliability and Safety of Complex Technical Systems and Processes offers a comprehensive approach to the analysis, identification, evaluation, prediction and optimization of complex technical systems operation, reliability and safety. Its main emphasis is on multistate systems with ageing components, changes to their structure, and their components reliability and safety parameters during the operation processes. Reliability and Safety of Complex Technical Systems and Processes presents integrated models for the reliability, availability and safety of complex non-repairable and repairable multistate technical systems, with reference to their operation processes and their practical applications to real industrial systems. The authors consider variables in different operation states, reliability and safety structures, and the reliability and safety parameters of components, as well as suggesting a cost analysis for complex technical systems.Researchers and industry practitioners will find information on a wide range of complex technical systems in Reliability and Safety of Complex Technical Systems and Processes. It may prove an easy-to-use guide to reliability and safety evaluations of real complex technical systems, both during their operation and at the design stages.

Introduction to safety analysis of critical infrastructures

Abstract: In the paper the new results of the safety investigations of the multistate complex systems with dependent components in variable operation conditions called critical infrastructures are presented. The multi-state safety function of the critical infrastructure system is defined and determined for an exemplary critical infrastructure. In the developed models, it is assumed that the system components have the multistate exponential safety functions with interdependent departures rates from the subsets of the safety states.

Critical Infrastructure Safety Indicators

Abstract: Modelling safety of critical infrastructure (CI) free of outside impacts is presented. Safety indicators for this CI are defined and procedures of determination there model are proposed. Next, as an exemplary application, the safety of oil piping transportation system free of any outside impacts is examined. Considering this system assets’ safety data received from experts, its safety is modelled, identified and predicted.

Semi-Markov Processes: Applications in System Reliability and Maintenance

Abstract: Semi-Markov Processes: Applications in System Reliability and Maintenance is a modern view of discrete state space and continuous time semi-Markov processes and their applications in reliability and maintenance. The book explains how to construct semi-Markov models and discusses the different reliability parameters and characteristics that can be obtained from those models. The book is a useful resource for mathematicians, engineering practitioners, and PhD and MSc students who want to understand the basic concepts and results of semi-Markov process theory. * Clearly defines the properties and theorems from discrete state Semi-Markov Process (SMP) theory.* Describes the method behind constructing Semi-Markov (SM) models and SM decision models in the field of reliability and maintenance.* Provides numerous individual versions of SM models, including the most recent and their impact on system reliability and maintenance.

Cyber Threats to Industrial IoT: A Survey on Attacks and Countermeasures

Abstract: In today’s Industrial Internet of Things (IIoT) environment, where different systems interact with the physical world, the state proposed by the Industry 4.0 standards can lead to escalating vulnerabilities, especially when these systems receive data streams from multiple intermediaries, requiring multilevel security approaches, in addition to link encryption. At the same time taking into account the heterogeneity of the systems included in the IIoT ecosystem and the non-institutionalized interoperability in terms of hardware and software, serious issues arise as to how to secure these systems. In this framework, given that the protection of industrial equipment is a requirement inextricably linked to technological developments and the use of the IoT, it is important to identify the major vulnerabilities and the associated risks and threats and to suggest the most appropriate countermeasures. In this context, this study provides a description of the attacks against IIoT systems, as well as a thorough analysis of the solutions for these attacks, as they have been proposed in the most recent literature.

Modelling reliability of uninterruptible power supply units

Abstract: This paper discusses issues related to reliability of uninterruptible power supplies equipped with automatic protection mechanisms (short circuit protection – SCP, overload protection – OLP, overvoltage protection – OVP) Relationships for determining probability of system states: full operational capability, partial capability and failure were derived The impact of time taken to restore the state of full operational capability on probability of different system states was also analysed

Analysis of Power Supply Maintenance in Transport Telematics System

Abstract: Issues concerning maintenance of power-supply for transport telematics systems were presented in this paper. Relationships graph was presented, and then Chapman–Kolmogorov system of equations was derived to describe it. Drawing on those equations, relationships for calculating function of probability of system staying in state of full ability SPZ, state of the impendency over safety SZB1 and SZB2 as well as state of unreliability of safety SB were derived.