Filling mining is a main technology of mining coal resources under buildings, and it has a good effect on preventing ground subsidence.Taking Wangtaipu coal mine of the Shanxi Jincheng Anthracite Coal Mining Group as the engineering background, in order to solve the problem of traditional closed brick wall at the end of working face, which consumes
Instrumentation and Control of Distillation Columns with Sharp Temperature Profiles
Distillation columns separating components of high relative volatility are characterised by sharp temperature profiles and a highly non-linear relationship between temperature and sonics empire reboil rate.This paper presents a stability analysis of the problem in a typical case which shows that both linearisation and dynamic compensation technique
Application-Specific SoC Design Using Core Mapping to 3D Mesh NoCs with Nonlinear Area Optimization and Simulated Annealing
Core mapping, in which a core graph is mapped to a network graph to minimize communication, is a common design problem for Systems-on-Chip interconnected by a Network-on-Chip.In conventional multiprocessors, this mapping is area-agnostic as the cores in the core graph are uniform and therefore iso-area.This changes for Systems-on-Chip because tasks
Effectiveness of scar-induced astigmatism correction by rigid contact lenses
Purpose: to compare the effect of rigid gas permeable contact lenses (RCL) in the improvement of visual functions vs.spectacle correction in scar-induced astigmatism of the cornea and concomitant posttraumatic conditions.Material and methods.A total of 147 patients (147 eyes) aged from 3 to 67 yrs with scar-deformed cornea as 1800 tequila lafc a re