1 Economic and Technical Research Institute of State Grid Shaanxi Electric Power Company, Xi’an, China 2 Shaanxi Local Electric Power (Group) Co., Ltd., Xi’an, China Accurate prediction of goaf ...

Abstract: The contact force calculation model plays an important role in the discrete element method (DEM), but the existing models have a large deviation from the actual situation when calculating ...

Precision planting (Wang et al., 2017a; Zhai et al., 2016) refers to an advanced technology that combines agronomic requirements for metering by accurately placing seeds into the soil at specified ...

In this study, a device was designed for tillage of compacted soil in wheel ruts formed by the repeated passage of agricultural machines.[Ed1] Soil parameters were measured, and then the wheel rut ...

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To explore the interaction between holes and fractures in defective white sandstone, uniaxial compression tests were conducted on samples with varying horizontal distances between holes and fractures.

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In this paper, the optimal control problem of parabolic integro-differential equations is solved by gradient recovery based two-grid finite element method. Piecewise linear functions are used to ...