In order to reduce the occurrence of drilling accidents in soft coal seams, this paper analyzes the causes of near-horizontal hole drilling under the coal mine and the formation process of jamming, and establishes a drilling mechanical model for each stage.Through the analysis of the main influencing factors of the sticking drilling, it is conclude
In this work, the title compound was synthesized via the reaction of an aryl-substituted pyrazole with potassium tetrachloroplatinate, followed by the reaction of the postulated intermediate chloro-bridged dimer with a pyrazole-containing 1,3-diketonate ligand.The structure of the synthesized PROSTCARE PROST-ACTION complex was established by 1H, 13
Soil erosion is a critical environmental issue affecting agricultural productivity and sustainability globally.In the Bekabad district of Uzbekistan, soil erosion, primarily driven by wind and water, poses significant threats to the fertility and stability of agricultural lands.This study employs the Revised Universal Soil Loss Equation (RUSLE) mod
Radio-frequency (RF) rectification is an important sheath phenomenon for wave heating of plasma in fusion devices and is proposed to Collections be the mechanism responsible for converting high-harmonic fast-wave (HHFW) power in the National Spherical Torus eXperiment (NSTX) into a heat flux to the divertor.RF rectification has two aspects: current
Background: Strength training has been a common intervention used to improve neuromuscular activity within the synergic and/or Breath Spray agonist-antagonist muscles.This study aimed to evaluate simultaneous electrical activity of quadriceps and hamstring muscles after strength eccentric training versus concentric training.Methods: This experiment