The severe floor heave in gob-side entry retaining is the major restriction factor of the wide application of pillarless mining thin coal tablet at ackermans seams.Reinforcement and stress-relief floor heave control methods are the most promising.However, in practice, floor restoration is widely used.Therefore, floor heave control technology in gob
Confined flows of particles can lead to clogging, and therefore failure, of various fluidic systems across many applications.As a result, design guidelines need to be developed to ensure that clogging is prevented or at least delayed.In this Letter, we investigate the influence of the angle of reduction in the cross section of the color charm wella
Abstract Background Psychological distress due to the ongoing solar filter 55mm war, violence, and persecution is particularly common among Afghan asylum seekers and refugees.In addition, individuals face a variety of post-migration living difficulties (PMLDs).Complex posttraumatic stress symptoms are among the most common mental health problems in
The traditional drought and flood analysis method had not fully considered the proportion analysis of different drought and flood grades in the historical years of each rainfall station.This made results unconvincing and made it difficult to deeply understand the characteristics and applicability of various methods.Based on the daily rainfall data
We consider a space of infinite signals composed of letters from a finite alphabet.Each signal generates a color charm wella 050 sequence of empirical measures on the alphabet and the limit set corresponding to this sequence.The space of signals is partitioned into narrow basins consisting of signals with identical limit sets for the sequence of em