矿石的检测是矿山企业采矿生产的重要工作,它既可以帮助分析指导采矿生产,又是后续选矿(冶炼)生产配比的组织保障。但是由于矿石的特殊性以及现场环境工况的复杂性,传统的矿石品位检测方法难以在无损检测的前提下准确的判断品位。X射线...矿石的检测是矿山企业采矿生产的重要工作,它既可以帮助分析指导采矿生产,又是后续选矿(冶炼)生产配比的组织保障。但是由于矿石的特殊性以及现场环境工况的复杂性,传统的矿石品位检测方法难以在无损检测的前提下准确的判断品位。X射线透射法已经成熟应用于安检、医疗领域中进行物质识别,本文将此方法改进引入矿石品位检测中,通过感知器算法形成分类曲线,依据分类曲线统计 K 值,进而判断矿石品位。这种方法立足于大量实验数据,判断结果和实际相符程度高,并且实现无损检测。展开更多
Research on micro-machines is becoming popular.In this paper,the electric driving behavior of liquid metal columns in confining channel was studied.When the electric field was applied,the liquid metal near the negativ...Research on micro-machines is becoming popular.In this paper,the electric driving behavior of liquid metal columns in confining channel was studied.When the electric field was applied,the liquid metal near the negative electrode became flat,longer.The NaOH electrolyte(1.0 mol/L)could flow from the positive electrode to the negative electrode from a small space above the liquid metal column.Besides,the length and volume of the liquid metal would affect its motion and deformation behavior.Both cylindrical liquid column(R=5 mm,L=5 cm)and linear liquid column(R=5 mm,L=40 cm)exhibit deformable movements,which are similar to the bionic movements of earthworms.The electrically driven liquid metal in closed systems could provide a theoretical basis for droplet actuation in microtubes.It has a very wide application prospect in the field of micro-drive machines.展开更多
文摘矿石的检测是矿山企业采矿生产的重要工作,它既可以帮助分析指导采矿生产,又是后续选矿(冶炼)生产配比的组织保障。但是由于矿石的特殊性以及现场环境工况的复杂性,传统的矿石品位检测方法难以在无损检测的前提下准确的判断品位。X射线透射法已经成熟应用于安检、医疗领域中进行物质识别,本文将此方法改进引入矿石品位检测中,通过感知器算法形成分类曲线,依据分类曲线统计 K 值,进而判断矿石品位。这种方法立足于大量实验数据,判断结果和实际相符程度高,并且实现无损检测。
基金Natural Science Foundation of Chongqing(Grant Nos.cstc2019jcyj-msxmX0788,cstc2020jcyj-msxmX0925)Science and Technology Research Program of Chongqing Municipal Education Commission China(Grant Nos.KJQN201901342,KJQN202001317).
文摘Research on micro-machines is becoming popular.In this paper,the electric driving behavior of liquid metal columns in confining channel was studied.When the electric field was applied,the liquid metal near the negative electrode became flat,longer.The NaOH electrolyte(1.0 mol/L)could flow from the positive electrode to the negative electrode from a small space above the liquid metal column.Besides,the length and volume of the liquid metal would affect its motion and deformation behavior.Both cylindrical liquid column(R=5 mm,L=5 cm)and linear liquid column(R=5 mm,L=40 cm)exhibit deformable movements,which are similar to the bionic movements of earthworms.The electrically driven liquid metal in closed systems could provide a theoretical basis for droplet actuation in microtubes.It has a very wide application prospect in the field of micro-drive machines.
