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The theoretical model of perfect business competition is designed based on five assumptions: atomicity of demand and supply, homogeneity of the product, free entry/exit in/from a branch of activity or on/from the market, market transparency, (with the fundamental assumption of the individual's rationality) and perfect mobility of production factors [1], [2]. The factorial analysis carried out for an economic agent from an Eastern European country highlighted the fact that the production function is homogeneous. Fo...

Water pollution with oil residues is a particularly important and difficult problem to prevent and solve. The ecological consequences of black tides have proven to be particularly serious and even catastrophic for marine ecosystems. In this sense, the limitation and concentration represent the optimal response action to hydrocarbon pollution. The aim of the work was to digitally design a woven textile reinforcement used as a matrix of the composite material from which the freeboard and skirt of the floating surfac...