[en] Running-in of locomotive Diesel engines has been investigated with the aid of wear determination performed at proton-activated liners of grey cast iron by ⁵⁶Co activity measurements. It was found that after general overhaul it was possible to get full load in 2 to 3 hours by application of fine hole drilled liners instead of honed liners and by a speed-dependent running-in programme. The programme has been introduced into practice

[en] For a 500 MW nuclear heatig reactor optimum design variants, which meet given thermodynamic, flow-mechanical and vibration-technical requirements, can be calculated by computers. Gravity flow of heat transfer agents in tube bundles and vibration excitation due to vortex flow are considered. (author)

[en] The contribution of the Dresden technical university to the design and the construction of the Dubna heavy ion accelerator's adgezator is reviewed. Investigations on the mechanical strength of the vacuum chamber have been carried out with regard to suitable materials and long-term strength of welded joints. Based on numerical and half-empirical methods as well as experimental arrangements information has been gained in relation to the due to eddy currents necessary cooling system

[en] For examination of pressure vibrations of coolant in primary circuits of pressurized water reactors and of pressure pulsations in hydroelectric power stations, the same measuring and calculating methods, are applicable. Analysis pressure vibrations is used for diagnostics of technical plants, as is explained at examples for control of relevant working conditions in pressurized water reactors. In hydroelectric power stations considerable pressure pulsations can occur at change-over processes. Their excitation mechanisms and consequences are discussed. (author)

[en] Wear at supporting flanks of a splined shaft joint can be determined by using thin-layer activation in assembled state of the mechanism. Prerequisites to using this method are suitable parameters for exposure as to measuring problem as well as the knowledge of adequate dependence of activity decrease on the rate of wear. (author)