Search

The use of artificial intelligence technologies in biology, pharmacy, and medicine has brought about a dramatic change in these industries. Drug repositioning is a method of drug development in the process of applying existing therapeutic agents to new diseases. This paper first outlines the use of artificial intelligence technology in the field of drug repositioning, then reviews a variety of application methods of artificial intelligence in the realm of drug repositioning, and finally summarizes the advantages and disadvantages of these methods, and proposes the difficulties faced by artificial intelligence in drug repositioning in the future and the corresponding suggestions to achieve the goal of helping researchers to develop more effective methods of drug repositioning.

Magnetization roasting and magnetic separation is an effective method of recovering iron from low-grade ores. The phase transformation mechanism of minerals is an important basis for optimizing technological parameters. In this study, biomass was used as a reducing agent to roast Baotou low-grade limonite in a high-temperature vacuum furnace. The phase transformation law and its influence on magnetic properties were studied via X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry. The results show that roasting temperature is related to the magnetism of iron ore. With an increase in temperature, iron content increases gradually, and limonite magnetism also increases, at 700 °C reaching a maximum saturation magnetization of iron concentrate of 43.06 emu/g. It was also found that during vacuum roasting, S elements migrated and accumulated on the surface of limonite and distributed evenly on the surface of mineral particles in the form of FeS, forming ash shells.