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Online monitoring of plankton in lake-type reservoirs requires the development of a model which is based on previous information, can assess the current state and predict the concentration of plankton in the future. An improved view of previous periods is possible on the basis of reanalysis techniques. These data can be used as a basis for modeling the profile of wind characteristics and the temperature profile which varies with its influence. A one-dimensional model for lake type reservoir is used in the program ...

The paper deals with the theoretical and practical analysis of the influence that the cutting direction of the bucket wheel excavator has on the digging forces acting on the wheel. Usually, when the terrace cut technology is applied, the bucket wheel of the excavator cuts vertical chips where mainly the perpendicular to stratification digging method is predominant. All the laboratory trials - done on the test rig - were conducted mainly for this type of vertical chip cutting. In cases when the drop cut method is a...