About the Journal
- Riverine craft resistance
- Shallow water hydrodynamics (Regional and Niger Delta focus)
- Sediment transport effects on propulsion.
- Corrosion analysis of aging offshore assets
- Pipeline integrity in tropical waters
- Retrofit structural analysis
- Maintenance regimes for marine diesel engines
- Fuel quality impact studies
- Hybridisation of inland ferries
- Shallow water platform design
- Port infrastructure resilience
- Dredging technology
- Coastal erosion control.
- Safety engineering, risk assessment, and accident analysis
- Operational optimisation for ships, offshore platforms, and ocean systems
- Emergency response, resilience, and reliability studies
- Automation, digitalisation, artificial intelligence, and robotics in marine systems.
- Computational modelling, simulation, and experimental methods
- Integration of renewable energy and sustainability-driven engineering solutions
- Research reflecting African operational environments and maritime conditions
- Locally generated data and context-specific case studies.
- Adapted engineering solutions for shipbuilding, ports, offshore, ocean, and inland water transport
Types of Articles Accepted
|
Article Type |
Marine & Offshore focus
|
Core Sections |
|
Original Research
Articles
|
Marine, offshore, and naval engineering
research
|
Abstract; Introduction; Methods; Results; Discussion; Conclusions; References
|
| Review Articles |
State-of-the-art marine and offshore topics
|
Abstract; Introduction; Review Method; Analysis; Future Directions; Conclusions, and References
|
|
Technical Papers |
Applied marine and offshore engineering solutions |
Abstract; Introduction; Technical
Approach; Evaluation; Conclusions;
References
|
|
Case Studies |
Real-world maritime and offshore applications
|
Abstract; Introduction; Case Description; Outcomes; Lessons Learned; References
|
|
Short Communications |
Emerging or preliminary marine findings
|
Abstract; Brief Introduction; Key Results; Conclusions; References
|
|
Methodological Articles |
Marine research tools
and techniques
|
Abstract; Introduction; Method
Development; Validation; Conclusions; References
|
|
Perspective & State-of-the-Art Articles
|
Forward-looking and
conceptual insights
|
Abstract, Introduction, Critical analysis, Outlook, Conclusions, and References
|
- Financial: Funding, employment, stock ownership, paid consultancy, patent applications.
- Non-financial: Personal relationships, academic rivalry, political or religious beliefs, institutional affiliations.
- Authors: Must include a statement under “Competing Interests” in the manuscript. If none exist: “The authors declare no competing interests.”
- Reviewers: Must decline review assignments if conflicts exist.
- Editors: Must recuse themselves from handling manuscripts with potential conflicts.
Research Ethics and Integrity
The African Journal of Offshore, Marine Engineering and Naval Architecture (AJOMENA) is committed to upholding the highest standards of research ethics and integrity in engineering and maritime sciences. All manuscripts must present original work that has not been published previously and is not under consideration elsewhere. Authors are responsible for the accuracy, reliability, and reproducibility of all data, calculations, simulations, and experimental results reported.
For studies involving human participants, animals, or sensitive environmental systems, authors must provide evidence of ethical approval from the relevant institutional review board or ethics committee. Research must comply with applicable national and international regulations, standards, and engineering codes of practice.
AJOMENA does not tolerate plagiarism, data fabrication, falsification, or duplicate publication. All submissions undergo screening for originality, and the journal reserves the right to investigate any suspected research misconduct following COPE and ICMJE guidelines.
Authors are expected to provide sufficient methodological and technical detail to enable reproducibility of experiments, simulations, and engineering analyses. Potential conflicts of interest, including financial, institutional, or personal relationships, must be fully disclosed in accordance with the journal’s conflict-of-interest policy.
By enforcing these standards, AJOMENA ensures the integrity, credibility, and reliability of engineering research in marine engineering, naval architecture, and related maritime disciplines.
The African Journal of Offshore, Marine Engineering and Naval Architecture (AJOMENA) workflow defines clear, proportionate, and time-bound procedures for handling complaints and appeals in accordance with international best practices in scholarly publishing. These processes are outlined in stages
Stage 1: Submission of Complaint
Timeline: Day 1
Complaints must be submitted in writing via the official AJOMENA contact email, complaint@nimenajournals.com, or the online submission system. Complaints must include sufficient details and, where applicable, supporting evidence.
Stage 2: Acknowledgement of Complaint
Timeline: Within 5 working days
AJOMENA acknowledges receipt of the complaint. The acknowledgement confirms the scope and outlines the review process and timelines.
Stage 3: Initial Assessment
Timeline: Within 10 working days of acknowledgement
The Editor-in-Chief or a delegated senior editor determines whether the complaint:
Falls within the journal’s remit. Contains sufficient information for assessment
Requires immediate action due to seriousness or ethical implications. Complaints outside the journal’s scope are closed at this stage with a written explanation.
Stage 4: Investigation
Timeline: Completed within 20 working days
(Up to 30 working days for complex ethical cases)
Editorial or administrative complaints are handled internally. Ethical complaints are investigated in accordance with Committee on Publication Ethics (COPE) guidelines. Independent Editorial Board members or external experts without conflicts of interest may be consulted. All relevant parties are allowed to respond.
Stage 5: Complaint Decision and Notification
Timeline: Within 5 working days of the conclusion of the investigation
AJOMENA communicates the decision and its rationale in writing. Outcomes may include clarification, correction, retraction, expression of concern, policy revision, or disciplinary action.
Stage 6: Right to Appeal
Timeline to submit appeal: Within 14 days of notification
Appeals must be submitted in writing and clearly state valid grounds, such as:
Procedural or factual error; Bias or conflict of interest; Failure to follow stated journal policies; and New and material evidence
Stage 7: Acknowledgement of Appeal
Timeline: Within 5 working days
AJOMENA confirms receipt of the appeal and whether it meets the criteria for review.
Stage 8: Appeal Review
Timeline: Completed within 15 working days
(Up to 20 working days for complex cases)
Appeals are reviewed by the Editor-in-Chief or a senior editor not involved in the original decision. Independent Editorial Board members or external experts without conflicts of interest may be consulted. Appeals focus strictly on procedural fairness and policy compliance.
Stage 9: Final Appeal Decision and Notification
Timeline: Within 5 working days of appeal review
The final decision and reasons are communicated in writing.
Appeal decisions are final and binding.
Stage 10: Record Keeping and Oversight
Timeline: Ongoing
AJOMENA maintains secure records of all complaints, appeals, investigations, and outcomes. Records are retained to demonstrate accountability, transparency, and compliance during audits and indexing evaluations.
Summary Timeline
Complaint acknowledgement: within 5 working days
Complaint resolution: within 30 working days (up to 40 for complex ethical cases)
Appeal submission window: 14 days
Appeal resolution: within 25 working days
AJOMENA is committed to prompt, fair, and transparent handling of complaints and appeals, in line with COPE Core Practices, DOAJ Principles of Transparency, and Web of Science editorial evaluation criteria.
- Corrections: Authors must report minor errors within two weeks. The editors aim to publish corrections within four weeks.
- Retractions: For serious errors, misconduct, or ethical violations, authors must cooperate within two to four weeks, and editors target issuing retractions within six to eight weeks of the investigation.
- Expressions of Concern: When issues require further investigation, authors should respond within two weeks, and editors will publish an expression of concern within four weeks.
- Originality and Integrity: Manuscripts must be original, free from plagiarism, fabrication, or falsification. Proper citation of all sources is required.
- Authorship: Authorship is limited to individuals who have made substantial intellectual contributions to the conception, design, execution, or interpretation of the work. All contributors must be appropriately acknowledged.
- Multiple Submissions: Manuscripts must not be submitted simultaneously to more than one journal.
- Conflicts of Interest: Authors must disclose any financial or personal relationships that could influence their research.
- Data Transparency: Authors should provide access to data, models, or materials supporting their findings when requested, and comply with open data standards where applicable.
- Fair Evaluation: Manuscripts are evaluated solely on academic merit, originality, quality, and relevance, without regard to race, gender, nationality, institutional affiliation, or personal beliefs.
- Confidentiality: Editors maintain strict confidentiality and do not disclose manuscript information beyond those directly involved in the review and publication process.
- Conflict of Interest: Editors must recuse themselves from handling manuscripts where potential conflicts exist.
- Publication Decisions: Final decisions are based on originality, scientific quality, and alignment with the journal’s scope.
- Objectivity: Reviews should be constructive, unbiased, and timely. Personal criticism of authors is inappropriate.
- Confidentiality: Manuscripts received for review are confidential and must not be shared.
- Conflict of Interest: Reviewers should decline assignments if a conflict exists.
- Acknowledgement of Sources: Reviewers are encouraged to identify relevant work not cited by the authors.
- Ensures adherence to ethical standards and best practices throughout the publication process.
- Maintains transparency in editorial and peer-review procedures.
- Responds promptly to ethical concerns, allegations of misconduct, or disputes.
- Laboratory technicians, research assistants, or administrative staff.
- Colleagues providing feedback or informal peer review.
- Assistance with data collection, analysis, or translation.
- Professional writers or editors assisting with manuscript preparation.
- Institutions providing access to research facilities or materials.
- Funding agencies or scholarship programs.
- The author order should reflect relative contributions, agreed upon by all authors before submission.
- Order disputes must be resolved at the institutional level before submission; the journal does not adjudicate disputes.
- Ensuring all authors meet authorship criteria.
- Coordinating manuscript preparation, submission, and revisions.
- Handling correspondence during peer review and post-publication.
- Disclosing conflicts of interest and funding sources accurately.
- Requests to add, remove, or reorder authors after submission must include written consent from all authors and approval from the Editor-in-Chief.
- Authorship cannot be altered after final acceptance without strong justification.
- Disputes unresolved among authors are referred to the relevant institutions following
- Author Contributions Statement
- Authors may be required to provide a contributorship statement following the CRediT (Contributor Roles Taxonomy), including roles such as:
- Methodology
- Conceptualisation
- Data curation
- Formal analysis
- Writing – original draft
- Writing – review & editing
- Supervision
- Funding acquisition
- Funding acquisition
- Ghost authorship (unacknowledged contributors) and honorary/guest authorship (listing individuals without significant contributions) are strictly prohibited.
- Misrepresentation of authorship may result in rejection, retraction, or referral to institutions.
AJOMENA Journal operates on a transparent and sustainable publishing model to ensure the integrity, accessibility, and long-term viability of the journal. The journal’s revenue sources are clearly separated from editorial decision-making and do not influence the peer-review process, acceptance of manuscripts, or editorial policies.
The journal’s revenue may be derived from one or more of the following sources:
Article Processing Charges (APCs)
Article Processing Charges (APCs) apply only after a manuscript has successfully undergone peer review and been officially accepted for publication. These charges support the operational costs of the open-access publication, including editorial management, peer review administration, online hosting, archiving, and ongoing journal development.
Use of APCs
APCs are used to cover the following key activities:
- Editorial Management: Guaranteeing efficient handling of manuscripts throughout the publishing process.
- Peer Review Administration: Overseeing and coordinating the peer review process to ensure high academic standards.
- Online Hosting: Making sure the article is hosted on a secure and accessible online platform that can be accessed worldwide.
- Archiving: Preserving published articles through long-term storage to ensure ongoing access and protection.
- Journal Development: Promoting the ongoing improvement and expansion of the journal, including technological upgrades and improved publishing practices.
Waiver policies for economically disadvantaged nations
Based on the World Bank’s classification, our journal is dedicated to promoting fair access to research publishing. Therefore, we provide Article Processing Charge (APC) waivers and discounts to authors from low- and lower-middle-income economies, as defined by the World Bank.
World Bank Economic Classification and APC Waivers (effective from Feb 2028)
|
Income Group |
World Bank Classification |
APC Waiver Eligibility |
Charge |
|
Low-income economies |
Countries with a Gross National Income (GNI) per capita of $1,045 or less (as per World Bank data) |
Eligible for full waiver |
$200 |
|
|
|
|
|
|
Lower-middle-income economies |
Countries with a GNI per capita between $1,046 and $4,095 |
Eligible for partial waiver |
$400 |
|
|
|
|
|
|
Upper-middle-income economies |
Countries with a GNI per capita between $4,096 and $12,695 |
Eligible for partial waiver |
$600 |
|
|
|
|
|
|
High-income economies |
Countries with a GNI per capita of $12,696 or more |
Not eligible for waiver |
$1000 |
Source: World Bank. (2023). World Bank country and lending groups. The World Bank. https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups
Policy Details
· Full Waiver: Authors from low-income economies qualify for a full waiver of the APC.
· Partial Waiver: Authors from lower-middle-income and upper-middle-income countries are eligible for a partial waiver or discount on the APC, depending on the journal's specific policies.
· High-income economies: Authors from high-income countries are not eligible for APC waivers, but they may qualify for discounts or other promotional offers, which are clearly explained on the journal's website.
All applicable APCs, waiver policies, and discount details are clearly listed on the journal’s website to ensure authors are fully informed of the costs before submitting their manuscripts.
APC Fee Update
Please note that the journal currently charges a flat fee of $200, which will increase to $1,000 once the waiver terms take effect in February 2028.
Source for Income Group Classification
For more details on the World Bank's classification of countries by Gross National Income (GNI) per capita, please visit the official World Bank page:
World Bank - Country and Lending Groups (Income Classification).
AJOMENA Journal may receive financial or in-kind support from academic institutions, research organisations, professional bodies, or publishers to support operational costs. Such support does not affect editorial independence.
Grants and Sponsorships
The journal may receive grants or sponsorships for specific activities, such as capacity-building, journal development, or dissemination initiatives. Sponsors have no role in editorial decisions, peer review, or content selection.
Advertising (if applicable)
Any advertising accepted by the journal is clearly distinguished from editorial content. Advertisers do not influence editorial decisions or journal policies.
AJOMENA Journal does not accept revenue sources that could compromise editorial independence, ethical standards, or academic integrity. Full transparency regarding revenue sources is maintained in line with international publishing standards.
Funding TransparencyReporting Standards and Data Transparency
AJOMENA promotes transparency, reproducibility, and integrity in marine engineering and naval architecture research. Authors must follow recognised reporting standards appropriate to their study type, including but not limited to:
· CONSORT: controlled experiments
· PRISMA: systematic reviews and meta-analyses
· STROBE: observational or field studies
· ARRIVE: experimental or model-based studies
· Other discipline-specific standards for CFD, hydrodynamics, or structural testing
Where applicable, completed checklists should be submitted and referenced in the manuscript.
Data Availability and FAIR Principles
Authors are encouraged to make research data openly accessible following FAIR principles:
· Findable: Assign persistent identifiers (DOI) and provide rich metadata
· Accessible: Use standard retrieval protocols; define access conditions
· Interoperable: Use standard formats and vocabularies for integration
· Reusable: Provide clear provenance, documentation, and licensing
A Data Availability Statement must be included, specifying:
· Whether data are publicly available
· Repository or database name
· Access restrictions or conditions
· Persistent identifier (DOI, accession number)
If data cannot be shared due to ethical, safety, or proprietary reasons, a clear justification must be provided. Trusted repositories include Zenodo, Figshare, Dryad, or discipline-specific archives.
Materials, Code, and Protocols
· Materials & Equipment: Sufficient detail must be provided to allow replication; access restrictions must be explained.
· Software & Code: Custom scripts or simulation code should be shared via platforms like GitHub, GitLab, or Bitbucket, with links in the manuscript.
· Protocols: Detailed methods should be described in the manuscript or deposited in open-access repositories with DOIs provided.
· Supplementary Files: Additional datasets, figures, tables, or videos may be submitted and published online.
Data Integrity Principles
Authors are expected to follow ALCOA-plus principles, ensuring data are Attributable, Legible, Contemporaneous, Original, Accurate, Consistent, Enduring, and Available for verification.
Image and Figure Integrity
Images (e.g., schematics, CFD outputs, experimental setups, or marine survey photographs) must accurately reflect the original data. Acceptable adjustments include uniform brightness, contrast, colour balance, cropping, and labelling.
Unacceptable practices include selective enhancement, splicing without disclosure, duplication, or misleading manipulation. Original files may be requested during peer review. Breaches may result in rejection, retraction, or institutional notification.
Preprints and Conference Proceedings
AJOMENA accepts manuscripts previously posted as preprints or presented at conferences, provided:
· The preprint or conference work is disclosed and cited with a DOI or reference
· The submitted manuscript contains substantial new content
· Work has not been published in a peer-reviewed journal
Preprints and conference papers may be cited if clearly labelled.
Artificial Intelligence (AI) Use
· Authors must disclose any AI use in writing, data analysis, simulations, or visualisation.
· AI cannot be listed as an author; human authors retain full responsibility.
· Ethical, unbiased, and reproducible use of AI is required.
· Editors may use AI for plagiarism detection or reviewer matching, but not to replace peer review.
Press, Embargo, and Media Policy
· Accepted articles are under embargo until publication.
· Authors and journalists must respect embargoes; violations may delay publication.
· Press releases must reflect the peer-reviewed version.
· After the embargo, authors may share work on social media with proper attribution.
Confidentiality
All manuscript content, reviewer reports, and editorial correspondence are confidential. Reviewers and editors must not use unpublished information for personal gain. Breaches may lead to removal from databases, rejection/retraction, or institutional notification.
AJOMENA Journal is a fully open-access scholarly journal committed to the unrestricted dissemination of research knowledge. In accordance with the principles of the Budapest Open Access Initiative (BOAI), the journal provides free availability of scholarly literature on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of articles without financial, legal, or technical barriers, other than those inseparable from gaining access to the internet itself.
All articles published in the journal are made immediately and permanently available online without any subscription, registration, or access fees.
Immediate Open Access
AJOMENA Journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge, promotes equity in research access, and enhances the visibility and impact of published work.
User Rights
Consistent with the Budapest Open Access Initiative (BOAI), all articles published in AJOMENA Journal may be read, downloaded, copied, distributed, printed, searched, linked to, or used for any lawful purpose without prior permission from the publisher or the authors, provided that proper attribution is given to the original work.
Copyright and Licensing
Authors publishing in the AJOMENA Journal retain the copyright to their work. All articles are published under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
The CC BY 4.0 license permits unrestricted use, distribution, adaptation, and reproduction in any medium or format, including for commercial purposes, provided that appropriate credit is given to the original author(s) and the source, a link to the license is provided, and any changes made are indicated.
No Embargo Period
AJOMENA Journal does not impose any embargo period. All published content is freely accessible immediately upon publication.
Archiving and Preservation
AJOMENA Journal is committed to the long-term preservation and accessibility of its published content. The journal supports digital preservation through recognised archiving systems and repositories, including
- LOCKSS, CLOCKSS
- PKP Preservation Network (PKP PN), and
- institutional repositories.
All articles published in the AJOMENA Journal are assigned Digital Object Identifiers (DOIs). Article metadata are made openly available and are harvestable via the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH).
Authors are permitted to self-archive the final published version of their articles immediately after publication in institutional repositories, subject repositories, and personal or academic websites, with appropriate citation of the original published work (Green Open Access).
Indexing and Discoverability
AJOMENA seeks inclusion in:
· DOAJ, Scopus, Web of Science (ESCI), Crossref, EBSCOhost, and relevant discipline-specific indexes
Revenue and Article Processing Charges (APCs)
· APCs support editorial, peer review, digital preservation, and open access
· Fees are applied only after acceptance; no submission charges
· Waivers or discounts are available for authors from low- and middle-income countries or in cases of financial hardship
· Revenue from advertising, sponsorships, or optional services does not influence editorial decisions
- Authors retain copyright; AJOMENA holds the right of first publication
- Works are licensed under CC BY-NC 4.0
- Commercial use requires prior written permission
Serving academics, researchers, engineers, naval architects, and industry professionals, AJOMENA fosters knowledge exchange and collaboration, contributing to the design and operation of safer, more efficient, and sustainable marine systems. The journal is indexed in Google Scholar and ResearchGate and is under consideration for major databases, including DOAJ, Scopus, and Web of Science.




