1. Read the reviewer's comments and suggestions carefully. Reviewers usually give some specific suggestions, including experimental design, data analysis, paper structure and so on. You should read these opinions carefully and think about how to improve your paper.
2. Discuss with your mentor or colleagues. If you don't quite understand the reviewer's point of view, you can discuss it with your tutor or peers. They may give you some useful advice.
3. Re-examine your research questions and assumptions. Sometimes, papers may be rejected because the research questions or assumptions are not clear enough. You can try to re-examine these problems and adjust your research direction.
4. Modify the experimental design and data analysis methods. If the reviewers think there is something wrong with your experimental design or data analysis method, you should seriously consider their suggestions and make corresponding changes.
5. Reorganize the paper structure. Sometimes, a paper may be rejected because its structure is not clear enough. You can try to reorganize the structure of the paper to make it more organized.
6. Pay attention to language expression and format specification. SCI papers require accurate and concise language expression and standard format. You should check your paper carefully to make sure there are no grammatical errors and formatting problems.
In short, after the initial review of SCI papers is rejected, you should carefully analyze the opinions of the reviewers and make corrections according to these opinions. At the same time, you can also seek the help of your tutor or peers to improve the quality of your thesis. Wish you success!