“Background”, also, improve your figures, as they’re now, they’re not presentable. Also, Figure number 1 has no axis labels, what is the y axis? What is the y axis and x axis of figure 2? Figure 3 is very small, hard to see the text inside.
The conclusion is quite incomplete. The conclusion should go deeper but concise and the important numerical results of the work should be given. In the conclusion section, the author should be objective and specific, presenting the main results from the study.
