CHARACTERISTICS OF OVERLYING STRATA MOVEMENT AND CONTROL TECHNOLOGY OF FINAL MINING SECTION IN FULLY MECHANIZED MINING FACE WITH DOUBLE RETRACTING PASSAGE

In order to solve the problems of severe mining pressure during the final mining of fully mechanized mining face in Jinjie Coal Mine, large deformation of surrounding rock in the withdrawal channel and difficult to control, based on the background of 31115 working face mining in Jinjie Coal Mine, a combination of theoretical analysis and numerical

The purpose of this study was to compare two popular Art Kit programming frameworks dedicated to building SPA applications.Two proprietary applications with identical functionalities were analyzed, one created in React and the other in Angular.A ready-made programming tool was used, an Canister original script comparing the speed of adding elements

Humans are rather funny things, we often tend to imagine that we are so ?special?, so divorced by our supposed ?intelligence? from the influences of the ?natural world? and so unique in our ?abstracting? abilities.We have this persistent delusion, evident since ancient Greek times, that we are ?rational?, that we can behave as ?disinterested observ

We report direct observational evidence for a latitudinal dependence of dust cloud opacity in ultracool dwarfs, indicating that equatorial latitudes are cloudier than polar latitudes.These results are based on a strong positive correlation between the viewing geometry and the mid-infrared silicate absorption strength in mid-L dwarfs using mid-infra