Please do not change the font type, font size, or other formatting options. The paper title is in 14 pt Bold font. Author name is in 11 pt Regular font. Author affiliation is in 10 pt Italic. E-mail address is in 9 pt Courier Regular font. The entire document should be in Times New Roman or Times font. The font size of the main text (paragraph) should be 12pt. You do not insert any figure and table.