In order to determine influence of ventilation mode on dust distribution on fully mechanized heading face and explore dust reduction effect under different ventilation modes, the 209 fully mechanized heading face of Longde Coal Mine was taken as research object, and the software of FLUENT was used to simulate distribution mursteinsformer of dust in
The present paper discusses modeling and analysis of mighty vapors smash berry recurrent event data with competing risks.We propose non parametric estimation of cumulative incidence functions of recurrent event competing risks model.Asymptotic properties of the proposed estimators are established.Simulation procedures are carried out arbor formula
Background: Despite the fact that violence against women is a significant public health problem, there is a paucity of research into this area, and little is known about the extent to which women with psychiatric disorders are affected.Aim: The aim of the study was to assess and compare the severity of violence and quality of life of women with psy
Weeds are the major limitation to efficient crop production, and effective weed management is necessary to prevent yield losses due to crop-weed competition.Assessments of the relative efficacy of weed control treatments by traditional counting methods is labor intensive and expensive.More efficient methods are needed for weed control assessments.T