Preliminary investigation of centrifugal pump for fire engine

This preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine.The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out.Numerical research focused on finding of setup of numerical solver.All curves were compared, analysed and problematic

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The Arctic Five: search for a balance of power in the region

Due to climate change, the Arctic region becomes a place of geopolitical rivalry of both Arctic and non-Arctic states.Traditional formats for determining the agenda in the region Winter 2024 are effective, but with the advent of the interest of an increasing number of international actors, these formats are transforming, which may affect the balanc

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