Thesis, which means talking and exchanging ideas in classical literature, now refers to articles that conduct research in various academic fields and describe academic research results. A paper generally consists of title, author, abstract, key words, text, references and appendix. It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. A paper generally consists of title, author, abstract, keywords, text, references and appendices, some of which (such as appendices) are dispensable.