International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The perception, awareness and understanding of risk by the population are important factors for the society safety, which contribute to increasing the preparedness of the population for the effects of crisis events, whether natural, industrial, economic, social, or in enterprise. The article focuses on the analysis of the need for education of students in the area of risk management and crisis management. The research groups were only students, not the population in general. The results were achieved by analysing the current state of education at the Faculty of Security Engineering – University of Žilina and a partial statistical evaluation of the questionnaire survey among students of this faculty. The results indicate that the risk perception of students is relatively low and the need for education in this field is justified.

Based on the status of the maritime country of Georgia, we studied the increasing risks of the pollution by the ballast water and wastewater volume increase in the sea caused by the volume of freight turnover of Poti and Kulevi sea ports. For this, we conducted research in two directions: on the sensitive areas of Kulevi and Poti pipeline terminals and ships in the port. We first examined ecological parameters: namely water relative temperature, water acidity (pH) and salinity (TDS) quantitative indicators as in the stationary, also in non-stationary conditions. The results of the laboratory survey of water samples indicate that the relative temperature (t1 / t2) of Poti (t1 / t2) 0,87 acidity (pH) 8.34, salinity (TDS) 15,60 Relative temperature of turbocharging (t1 / t2) 0,87, acidity (pH) 8.37, salinity (TDS) 15,12
Secondly, on the ships entered in the ports, we took as ballast and wastewater samples and analyzed in accordance with the legislation:
1. Ballast water analysis from tanker “Metin K” from Kulevi, shows that increased nitrogen +6 mg / l, oilseeds +0.7 mg / l, nitrates 1,3 mg / l and nitrites- 0,35 mg / l
2. Poti Port – N 5 Ventilation Examples of Weight Watchers Examples of Weighted Particles 4.0 mg / l, Ammonium 1,67 mg / l of ballast water analysis shows that the total amount of oil nitrogen is 0.6 mg / l, + 0.7 mg / L, nitrates 1,3 mg / ld nitrites – 0,35 mg / l.
As a result of these two studies, based on reliability and risk theory of Kulevi, the mean value of salinity (TDS) is equal to: 10,85, for Poti port, the mean value of salinity (TDS) is equal to 12,34.
In the theoretical and laboratory studies we have identified the risks of contamination of ports and waste water pollution.

An analysis of the state, technology and technique of the pastoral system of sheep breeding, which is best suited to the specifics of the meat sector in sheep breeding, is made.
The main types of hazards are classified for the main types of works and the conditions under which a methodological approach based on the methods of expert assessment is established to determine the significance of the different types of hazards for working in breeding sheep for meat and in breeding activities on farms .

Markovian models are often used in modelling a time development of random phenomena. When modelling real world scenarios it is reasonable to assume that the respective phenomena may not be time homogeneous. Based on the sociological and security research, it can be assumed that there is a link between a destabilisation of a society of a given geographical region and the acts of terrorism. This link is utilised in construction of a model for description of the intensity of a terrorist threat based on given determinants/indicators of societal stability. The model is based on the theory of discrete non-homogeneous Markov chains. The theory of generalised linear models (GLMs) is used in the estimation of the probabilities of the categorised level of the terrorist threat. In the contribution the use of different estimates of the categorised level of terrorist threat probabilities is studied. The estimates are determined by GLMs with different input parameters. The influence of the resulting estimate on the transition matrix of the non-homogeneous Markov chain is assessed. Additionally, a real world example utilising the data from Global Terrorism Database of University of Maryland and Organisation for Economical Cooperation and Development is presented.

Risk analysis is a process with a detailed identification of risks, determine their range and examines the interaction of these risks. Each process or human activity are influenced by many risks. As well as in rail transport there are many risks which hare accrue from the operation. Risk is defined as the chance that something will happen what will affect the goals and is measuring by results or estimate. We can also risk defined as the product of the likelihood of an adverse event (phenomenon) and consequences (outcomes). On one side is the risk connected with the hope of achieving a good financial results, but on the other side with the danger of business failure that brings losses. The aim of this paper is the proposal of a tariff taking into account the risk from unoccupied capacity of passenger trains. Pricing of selected risk we will eliminate this adverse event.

Risk management constitutes currently one of the most important elements of the management of an enterprise, which is crucial to its security and continuous improvement. This is a several-stage process, and its implementation should systematic and principled in character. The article sets out the risk assessment for activities performed in conjunction with individual operations of a manufacturing process, and specifically, the book production process. The risk assessment was preceded by the identification of hazards to technological, transport and control operations, followed by their analysis using an indicator method. Operations have been identified, which are characterized by the highest risk, and preventive and prophylactic actions using various control measures (technical, organizational, legal, individual and collective) have been proposed. Risk assessment for a task is a primary outline for the use and implementation of risk management issues that go beyond the commercial risk assessment in an enterprise.

Elevating work platforms are used for work in places that are not easily accessible, and with their design and subsequently appropriate design craftsmanship they ensure safe work in construction and assembly operations, inspections of street lighting and many other activities. The mobile elevating work platforms that are manufactured today, with their level of construction, quality of workmanship and ever-improving built-in safety features, create safer working conditions at heights and thus a quieter and safer working environment not only for the workers themselves but also for their employers. The paper analyzes the dangers and threats when working with platforms and the requirements for operators working with this equipment. Subsequently, risks are identified using the risk-assessment methods in the standards TNI ISO / TR 14121-2 Safety of Machinery. Risk assessment. Part 2: Practical guidance and examples of methods. In the conclusion is a proposal of corrective measures that can improve safety when working with elevating work platforms.

Relations are developed estimating risks of in-transit uncoupling of cars caused by technical malfunction depending on the number of cars in a train and haulage distance. The obtained results allow assessing safety level in international transit corridors where each local railway administration shares liability for damage to cargo and railway equipment in the course of transportation through their area of responsibility.

Направен е анализ на състоянието на тракторния парк в страната, условията за поддържането му в работоспособно състояние и нормативната база за оценка на риска в ремонтнообслужващите дейности, Предложен е методически подход за оценка на риска при техническо обслужване и ремонт на трактори, отчитащ многообразието от форми и дейности извършвани при този вид работи.