Copyright policies define the rights reserved for authors and the permissions granted to the publisher and the public. JCEP ensures that the author’s fundamental rights are protected while enabling the widespread use and dissemination of knowledge.
Author's copyright protection
Authors retain unlimited copyright and distribution rights to their works published in JCEP. This contrasts with models that require authors to transfer full copyright to the publisher.
Issuing a license for use
All content is released under the CC BY 4.0. license (https://creativecommons.org/licenses/by/4.0/deed.en). The Creative Commons Attribution license allows the public to share and adapt the work, provided that the original authors and the journal are given appropriate credit.
Permissions for Third-Party Materials
If an article includes material (such as figures, tables, images or sections of text) that has been previously published elsewhere or created by a third party, authors are required to obtain written permission from the copyright holder(s) for both print and online formats before submission.
Authors must ensure that the necessary rights are respected:
• Non-exclusive rights to reproduce the material contained in the article.
• Print and electronic rights.
• The right to use the content throughout the life of the work (meaning no time limit on reuse).
Attribution and Credit: Proper acknowledgment of all third-party material must be included in the article. If the article is published in the open access and contains material that the authors do not have permission to re-use, this should be clearly stated using a specific credit line that details the original publication and indicates that the content is not covered by the terms of the Creative Commons license of the article. If the third-party material is published under a CC license (such as CC BY 4.0. license (https://creativecommons.org/licenses/by/4.0/deed.en), JCEP, as a scholarly publisher, generally requires explicit or negotiated permission to reuse it.
Consequences of not obtaining permission: Any material received without clear proof of permission will be presumed to have originated from the authors. Failure to obtain the necessary permissions for copyrighted works can result in significant delays in publication or removal of content from the published work.
Digital Archiving & Preservation
To ensure long-term preservation and permanent access to scholarly content, all articles published in this journal are digitally archived in the institutional archives of University of Tehran and National Library of Iran. This commitment to digital archiving ensures that the journal’s research legacy is protected from technological obsolescence and provides researchers and libraries with uninterrupted access to the final version of the documents for years to come.