The strapdown inertial navigation system (SINS) can be installed on a shearer and used for monitoring its position.However, under the complex environment of the mechanized mining face, the strong vibration of the shearer may cause large calculation error.First, the dynamic model of a double-drum shearer is built with a force analysis, and the spect
This study investigates the decades-long evolution of groundwater dynamics and thermal field in the North German Basin beneath Brandenburg (NE Germany) by coupling a distributed hydrologic model with a 3D groundwater model.We found that hydraulic gradients, acting as the main driver of the groundwater flow in the studied basin, are not exclusively
This study develops a progressive optimal fault-tolerant control method based on insufficient fault information.By combining passive and active fault-tolerant control manners during the process of fault diagnosis, insufficient fault information is fully used, and optimal fault-tolerant control effect is achieved.In addition, the fault-tolerant cont
This paper draws on transactions cost analysis, price and auction theory, and competition authority findings in order to answer some questions on the structure and trading patterns of the South African forestry industry.Does a forestry firm linked retroflag gpi case 2 deluxe edition contractually to supply an adjacent sawmill customer, form part of