An industrial control system (ICS) is a computer system that controls industrial processes such as power plants, water and gas distribution, food production, etc. Since cyber-attacks on an ICS may have devastating consequences on human lives and safety in general, the security of ICS is important. In this context, the most valuable asset is the process that is under the control of the ICS. As a result of attacks on the process, the behaviour of the process (i.e., the program output in a computer program) changes due to modifications in: a) the automation logic (i.e., program instruction set) or b) the process input parameters (i.e., the program input). The detection of process manipulations through attacks is challenging as it requires the understanding of complex process dependencies in sensitive and often proprietary environments. Due to these conditions, the problem of process manipulations has not been thoroughly studied by security researchers. This thesis tackles this challenge by performing pioneering work in exploring suitable techniques for detecting process attacks in ICS. The main focus of the thesis is the problem of malicious manipulations in process input. We consider input manipulations carried through a) user application and b) network infrastructure. Our work shows that relevant information describing process operation can be extracted and analysed from common system traces (i.e., network traffic and system logs) to improve the awareness of the detector about the process that is under the control of the ICS. By doing this, we lay the ground for detecting critical process attacks that cannot be addressed by the existing solutions.

Poles of partial wave scattering matrices in hadron spectroscopy have recently been established as a sole link between experiment and QCD theories and models. Karlsruhe-Helsinki (KH) partial wave analyses have been ``above the line'' in the Review of Particle Physics (RPP) for over three decades. The RPP compiles Breit-Wigner (BW) parameters from local BW fits, but give only a limited number of pole positions using speed plots (SP). In the KH method only Mandelstam analyticity is used as a theoretical constraint, so these partial wave solutions are as model independent as possible. They are a valuable source of information. It is unsatisfactory that BW parameters given in the RPP have been obtained from the KH80 solution, while pole parameters have been obtained from the KA84 version. To remedy this, we have used a newly developed Laurent + Pietarinen expansion method to obtain pole positions for all partial waves for KH80 and KA84 solutions. We show that differences from pole parameters are, with a few exceptions, negligible for most partial waves. We give a full set of pole parameters for both solutions.

A healthy lifestyle is an important trend shaping business actions today, while packaging on the other hand influences the purchase behavior of consumers. The aim of this research was to explore and understand consumer perceptions of healthy food packaging information. Beside qualitative research, a quantitative research was conducted with a non-probability convenient sample. Data were analyzed using exploratory methods – principal component analysis and linear regression. The influence of advertisements and influence perception of the credibility of packaging information were observed. The research results show that there are gender differences in the importance of different attributes of healthy food packaging information perception. Women are influenced only by advertisements, while men are influenced both by advertisements and the credibility of packaging information.

Industrial branches where the changes occur with the introduction of the new technologies in a very short period are automobile and aviation industries, because the securing and ergonomic criteria had to be achieved. These demands initialized setting of the new productive philoso-phy, which is based on a modern production like plastic forming and modelling with an incompressible fluid. A tube hydroforming got a significant role in the last five years and is considered as a technology of rapid development. This paper provides researches and analyses of hydroforming of thin-walled tube elements. A work-piece and die contact for hydroforming in a work process manifests with the friction force which has an influence on: axial force, axial punch feed and workpiece wall thick-ness. The stress-strain state and their disposition during the tube hydroforming are foundation where the friction influence in tube hydroforming is based on. It provides an analysis of deformation zones and friction in T shape tube hydroforming. An analytical model of friction coefficient change in hydroforming between a tube and die has been carried out. The main objective of this paper is to suggest new analytical model for friction coefficient determination in hydroforming of thin-walled tube elements which de-scribes process the most realistically. This paper provides an experimental way of needle sensor setting in measuring of the contact friction in T shape tube hydroforming. DOI: http://dx.doi.org/10.5755/j01.mech.19.6.6012