This journal is a peer-reviewed, fully open access journal owned by Chongqing University, who retains copyright of the overall compiled journal and the compiled issues. For the single article, Authors will retain copyright alongside scholarly usage rights, and KeAi Communications Co., Ltd. and Chongqing University will be granted non-exclusive publishing and distribution rights.

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Role of the funding source

You are requested to identify who provided financial support for the conduct of the research and/or preparation of the article and to briefly describe the role of the sponsor(s), if any, in study design; in the collection, analysis and interpretation of data; in the writing of the report; and in the decision to submit the article for publication. If the funding source(s) had no such involvement then this should be stated. Please see https://www.elsevier.com/open-access/agreements.

Open Access

This journal is a peer reviewed, fully open access journal owned by Chongqing University. Chongqing University retains copyright of the overall compiled journal and the compiled issues. The article is universally and freely accessible via the internet in perpetuity, in an easily readable format immediately after publication.

To provide open access, this journal has an open access fee (also known as an Article Processing Charge, APC) which needs to be paid by the authors or on their behalf e.g. by their research funder or institution. The open access publication fee for this journal is USD 1000, plus taxes. All APCs for articles submitted to the journal before the 31st-December-2025 will be fully waived.

Peer review under the responsibility of Chongqing University.

A CC user license manages the reuse of the article. All articles will be published under the following license:

Creative Commons Attribution (CC BY):

Allows users to copy, to create extracts, abstracts and new works from the Article, to alter and revise the Article and to make commercial use of the Article (including reuse and/or resale of the Article by commercial entities), provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, indicates if changes were made and the licensor is not represented as endorsing the use made of the work. The full details of the license are available at https://creativecommons.org/licenses/by/4.0/.

Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND):

Allows users to copy and distribute the Article, provided this is not done for commercial purposes and further does not permit distribution of the Article if it is changed or edited in any way, and provided the user gives appropriate credit (with a link to the formal publication through the relevant DOI), provides a link to the license, and that the licensor is not represented as endorsing the use made of the work. The full details of the license are available at https://creativecommons.org/licenses/by-nc-nd/4.0/.