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Each action undertaken by a human being is connected with a risk. It also refers to actions with unrepeatable character, such as projects. Projects as such are perceived as enterprises of unique character, referring to future solutions, the results of which may differ from accepted assumptions and goals in the project. The main problem in quantitative risk analysis is description of influence of uncertainity. The mathematical methods used for its description are generally based on the four attempts: deterministic with elements of statistical analysis, stochastic, using fuzzy logic and using interval computations. In risk analysis there are usually taken into account the following areas of risks: project milieu, client and contract, suppliers, maturity of the organization, project characteristics and project team. The following thesis was formulated in the article: identification and ex ante risk assessment contributes to its efficient implementation or abandonment of its implementation. The goal of the article is the ex ante assessment of the complete project risk at most based on six partial risks specified in the scope of project milieu (client, terms and conditions of the contract, suppliers, maturity of an organization, scope of the project, project team), using the fuzzy logic attempt. [ABSTRACT FROM AUTHOR]

In the article, the problem of estimating the lifespan of the magnetic lens' (horns) structure, is discussed. Due to pulse-type excitation by current flow, the relatively broad frequency band of stress component function is obtained. Moreover, due to repetition, the problem of pulse resonance can be obtained. The fatigue life prediction is done on the spectral attempt. The analysis was performed for two types of horn structures: the CERN NuFACT one and the EUROnu designed one. [ABSTRACT FROM AUTHOR]