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- W2351763263 abstract "In view of the fact that safety evaluation is one of important measures to discover hidden trouble and to increase system reliablity in fully-mechanized mining faces,the synthetic evaluation method based on entropy weight and extension theory is a new safety evaluation method.Entropy weight,which is a kind of weights,was ascertained by entropy theory.As a result,the subjectivity in ascertaining the weights of more factors in lower hierarchy is avoided.The comprehensive correlative degree is taken as the evaluation criteria in this method.Therefore the subjectivity of evaluation model is also avoided.This method is applied in the safety evaluation of fully mechanized mining faces in 6th mine of Pingdingshan Coal Group Corporation Ltd.The safety order preference and safety differences of all fully-mechanized mining faces are gained.At the same time,safety problems existing in man,machine and environment of fully-mechanized mining faces are pointed out.The corresponding countermeasures to improve safety are put forward.The evaluation process indicates that calculation is simple and easy to popularize." @default.
- W2351763263 created "2016-06-24" @default.
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- W2351763263 date "2008-01-01" @default.
- W2351763263 modified "2023-09-24" @default.
- W2351763263 title "Safety evaluation of fully-mechanized mining face based on extension theory" @default.
- W2351763263 hasPublicationYear "2008" @default.
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