November 25, 2020
This journal is not a popular journal for public, it is a professional research level journal for scientist. It focus on many topics in mainstream science, especially for future science. Since this journal is very complicated and professional, so we use the “problem-proposed problem-analysis problem-solving” mode to explain our research,to make readers easier to understand. If you truly want to improve your knowledge by reading this journal, it is better for you to study the problems mentioned in this journal carefully. To write down your unusual solutions for these problems after you have read them. Any good idea about the problems appeared in this journal can be mail to author cheng.