Yes, it is possible to publish a research paper as a sole author in a mechanical engineering journal.

Publishing a research paper as a sole author in a mechanical engineering journal is a significant achievement and demonstrates an individual's expertise and contribution to the field. However, it requires careful planning, diligent research, and adherence to the journal's guidelines and standards.

Here are the steps to publish a research paper as a sole author in a mechanical engineering journal:

1. Select a Suitable Journal: Identify a mechanical engineering journal that aligns with the topic and scope of your research. Consider factors such as the journal's impact factor, reputation, indexing, and target audience.

2. Review the Journal's Guidelines: Carefully read and understand the journal's guidelines for authors. These guidelines outline the manuscript's formatting, citation style, word limit, and submission requirements. Adhering to these guidelines is crucial to increase the chances of acceptance.

3. Conduct Thorough Research: Conduct a comprehensive literature review to identify the existing research and determine the gap your study aims to address. Design and execute your research methodology meticulously, ensuring that your findings and conclusions are robust and well-supported.

4. Write the Manuscript: Structure your research paper according to the journal's guidelines. Include sections such as an abstract, introduction, methodology, results, discussion, and conclusion. Clearly articulate your research objectives, methods, results, and their implications.

5. Follow Proper Citation and Referencing: Accurately cite all the sources you have referred to in your research paper. Ensure that you follow the citation style specified by the journal. Proper referencing enhances the credibility of your work and acknowledges the contributions of other researchers.

6. Proofread and Revise: Carefully proofread your manuscript for grammatical errors, clarity, and logical flow. Revise the content to improve its readability and coherence. Seeking feedback from colleagues or mentors can provide valuable insights for further improvements.

7. Submit the Manuscript: Prepare your manuscript according to the journal's submission guidelines. Include all the required documents, such as a cover letter, copyright transfer form, and any additional supporting materials. Submit the manuscript through the journal's online submission system.

8. Peer Review Process: After submission, your manuscript will undergo a peer review process. Experts in the field will evaluate the quality, validity, and significance of your research. Address any reviewer comments or suggestions in a timely and professional manner.

9. Publication and Copyright: If your research paper is accepted, the journal will proceed with the publication process. You may need to sign a copyright agreement, granting the journal the right to publish your work. Once published, your research will contribute to the scientific literature and enhance your academic profile.

Publishing a research paper as a sole author in a mechanical engineering journal requires dedication, perseverance, and a strong command of the subject matter. By following these steps and adhering to the journal's guidelines, you can increase the likelihood of successfully publishing your research.