Landslide is a common geological disaster which causes huge losses to people’s properties and national economic development. How to prevent and control landslides has become an important issue. This article introduces the geological and geographical environment of the landslide body, analyzes the basic characteristics of the landslide, calculates the landslide stability based on the ultimate equilibrium theory-based transfer coefficient method, discusses the development trend of the landslide and comes up with corresponding control schemes by taking the landslide body of Black Bovine Cave Copper Ore Mining & Beneficiation Project as example. It is found that the control scheme – “anti-slide pile + retraining wall + baffle + anchor cable” can be used to effectively prevent and control the geological disaster according to calculation. The study results can provide a reference for landslide body control.

The aim of the text is to consider Gianni Vattimo’s claim that hermeneutics needs to be more rational due to its criticised relativism and aestheticism. From this perspective, the author considers the projects proposed by Bartosz Brożek and Chrysostomos Mantzavinos, based on the assumption that the cognitive phenomena underlying the understanding of human behaviour and the resulting artefacts can be described using naturalistic methods. Finally, the question is considered whether these attempts, coming from outside the hermeneutic movement, offer hope for eliminating the flaws of hermeneutics mentioned by Vattimo, and what are the prospects for further research on this issue.

This paper presents a method of describing an airlift bioreactor, in which biodegradation of a carbonaceous substrate described by single-substrate kinetics takes place. Eight mathematical models based on the assumption of liquid plug flow and axial dispersion flow through the riser and the downcomer in the reactor were proposed. Additionally, the impact of degassing zone with assumed complete mixing on the obtained results was analyzed. Calculations were performed for two representative hydrodynamic regimes of reactor operation, i.e. with the presence of gas bubbles only within the riser and for complete gas circulation. The conclusions related to the apparatus design and process performance under sufficient aeration of the reaction mixture were drawn on the basis of the obtained results.