Modeling Diffusion of Innovations in Russian Biotechnology

Shinkevich, Alexey I.; Shvetsov, Mikhail Y.; Shinkevich, Marina V.; Zhukovskaya, Irina V.; Afanasyev, A. A.; Erdyneyeva, Klavdiya G.; Kudryavtseva, Svetlana S.

doi:10.5539/jsd.v8n6p254

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2021

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“…In this case, the timely receipt of information about the state of the coal-rock massif plays an important role. At the same time, various geological aspects may have a negative impact on the coal mining process [1,2].…”

Section: Introductionmentioning

confidence: 99%

Determination of roof rock weakening zones in extraction columns based on seismic exploration

et al. 2021

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This article highlights the difficulties that arise in coal mining when roof areas have fractures with an opening of up to 0.2 - 0.5 m. Such situations may cause roof collapse. The seismic exploration method used by the authors to assess the geomechanical characteristics of extraction columns is described. The results of work on identification and registration of unstable roof areas are presented.

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Section: Introductionmentioning

confidence: 99%