In the development of practically all potash salt deposits, the study of gas-dynamic phenomena (GDP) is one of the most difficult tasks to ensure mining safety.Sudden salt and gas outbursts, dynamic breakdown, which are accompanied by intense gas release and possible broken rock carry-over into the mine workings, are associated with GDP.Geological
Path planning of mine robot based on a novel heuristic algorithm with regular hexagon grids
In the traditional square grid map, when robot encounters an obstacle, it is easy to collide with the obstacle when moving along diagonal direction, has poor capability in obstacle-avoiding and stability, and time consumed in each step during real-time detection cannot be uniquely determined.In view of the above problems, based on working environme
Bioecological characteristics and decorative representatives of the genus Robinia L. according to phonological data
The object of research was the species, varieties and forms of the genus Robinia: R.viscosa var.hartwegii (Koehne) Ashe; R.neomexicana var.rusbyi; R.neomexicana f.pale pink; R.neomexicana f.pale purple; R.pseudoacacia L.; R.pseudoacacia f.pyramidalis (Pepin) Rehd.; R.pseudoacacia f.umbraculifera (DC) Rehd.and R.pseudoacacia x R.neomexicana, growing
Digital Simulation of Coupled Dynamic Characteristics of Open Rotor and Dynamic Balancing Test Research
An aero engine, as the core power equipment of the aircraft, enables safe and stable operation with a very high reliability index, and is an important guarantee in flight.The open rotor turbine engines (contra-rotating propeller) have stood out as a research hotspot for aviation power equipment in recent years due to their outstanding advantages of