Certifications

MDPI Basel Switzerland CERTIFICATE OF SERVICE 2021 as Guest Editor of Special Issue Mathematics and Computer Programming in 2D and 3D Open Source Software Professor Assoc. Tihomir Dovramadjiev PhD Eng MDPI Special Issue "Mathematics and Computer Programming in 2D and 3D Open Source Software" https://www.mdpi.com/journal/mathematics/special_issues/Math_Comput_Program Journal Rank: JCR - Q1 (Mathematics) / CiteScore - Q1 (General Mathematics) Impact Factor: 2.258 (2020) ; 5-Year Impact Factor: 2.165 (2020) https://www.mdpi.com/journal/mathematics © MDPI (Basel, Switzerland)

MDPI Basel Switzerland CERTIFICATE OF SERVICE 2021 as Topical Advisory Panel Member of Mathematics Professor Assoc. Tihomir Dovramadjiev PhD Eng. Topical Advisory Panel https://www.mdpi.com/journal/mathematics/topical_advisory_panel Journal Rank: JCR - Q1 (Mathematics) / CiteScore - Q1 (General Mathematics) Impact Factor: 2.258 (2020) ; 5-Year Impact Factor: 2.165 (2020) https://www.mdpi.com/journal/mathematics © MDPI (Basel, Switzerland)

MDPI Academic Open Access Publishing Since 1996 Certificate of Attendance This certificate is given to Tihomir Dovramadjiev for participating in the following webinar Mathematics Advances on Differential Games and Connections With Other Scientific Fields 13 October 2022, 10:00 AM (CEST) Charlotte Gardini Conference Manager DOI: 10.13140/RG.2.2.33504.76800 https://www.researchgate.net/publication/364321587_MDPI_Certificate_of_Attendance_Prof_Assoc_Tihomir_Dovramadjiev_PhD_Eng_Mathematics_Advances_on_Differential_Games_and_Connections_With_Other_Scientific_Fields

Certificate EMIS for Universities ISI Emerging Markets Group 27 April 2022 Prof Assoc Tihomir Dovramadjiev PhD Eng https://info.emis.com/emis-for-universities

Certificate Human Factors and Safety Culture Challenges and Opportunities SEMIT 2022 Springer Beata Mrugalska Tihomir Dovramadjiev https://www.researchgate.net/publication/358989641_Certificate_of_Presentation_Paper_Title_Human_Factors_and_Safety_Culture_Challenges_and_Opportunities_-_Engineering_Management_and_Information_Technology_SEMIT_2022

ELSEVIER Certificate_EAAI https://www.researchgate.net/publication/366969876_ELSEVIER_EAAI_Engineering_Applications_of_Artificial_Intelligence_Certificate_of_Reviewing_Prof_Assoc_Tihomir_Dovramadjiev_PhD_Eng

SmartCom 2023 136_PC Presentation Certificate 7th International Conference on Smart Trends in Computing and Communications , Jaipur, India, January 24 - 25, 2023 https://smartcomconference.com/home.php PUBLICATION PROCEEDINGS & INDEXING 2023 PUBLICATION All SMARTCOM 2023 presented papers will be published in conference proceedings by Springer LNNS. ISSN: 2367-3370, Series : https://www.springer.com/series/15179 INDEXING Further published books/papers will be send for indexing and inclusion in SCOPUS,Web of Science (WOS) and Google Scholar

Springer Materials Certificate SRINGER MATERIALS Curated Materials Properties and Data for Hybrid Perovskites - A Springer Nature webinar Wed, May 31, 2023 12:00 PM - 1:00 PM EDT https://www.springernature.com/gp/librarians/tools-services/learn/webinars-podcasts SpringerMaterials: Curated Materials Properties and Data for Hybrid Perovskites Volker Blum Rayan Chakraborty Sharon George Dr. Michael Klinge Antonio Montes About the webinar This webinar will summarize work being done at the Thomas Lord Department of Mechanical Engineering and Materials Science at Duke University, Durham, NC, on collecting curated materials data for hybrid organic-inorganic semiconductor (HOIS) materials, particularly those associated with the perovskite paradigm. Hybrid perovskites, which incorporate both inorganic and organic components in well-defined crystalline lattices, have been studied for almost five decades and experienced a "run" since one member of this family became a widely studied photovoltaic material in 2009.

International Knowledge Press, Journal of Applied Physical Science International Certificate of Excellence in Peer-Reviewing Professor Assoc. Tihomir Dovramadjiev PhD Eng. https://ikprress.org/index.php/JAPSI Certificate-Tihomir Atanassov Dovramadjiev-Certificate No IKP PR Cert 11310 TIH In recognition of an outstanding contribution to the quality of the journal Mr. P. Mondal EUROPE: I.K. Press, S107, 3 Hardman Square, Spinningfields, Manchester, M3 3EB, UK, Fax: +44 (0)161 667 4459, Email: contact@ikprress.org ASIA PACIFIC: I.K. Press, N. S. Road, Tarakeswar, Hooghly, PIN-712410, West Bengal, India, Email: contact@ikprress.org (Editorial Office) https://www.researchgate.net/publication/368567603_Journal_of_Applied_Physical_Science_International_Certificate_of_Excellence_in_Peer-Reviewing_Professor_Assoc_Tihomir_Dovramadjiev_PhD_Eng

B P international Certificate of Excellence for Book Reviewing Prof Assoc Tihomir Dovramadjiev PhD Eng Certificate No: BPI/PR/Cert/6437A/TIH 20/04/2023 https://www.bookpi.org/ ABOUT B P International B P International is an international publishing organization that publishes textbooks, atlases, monographs, e-books, reference books in scientific, technical, and medical areas. As an innovative publisher, B P International is helping to move science forward. B P International is passionate about working with the global academic community to promote best scholarly research to the world. With the help of academic Editors, based in institutions around the globe, B P International is able to focus on serving authors while preserving robust publishing standards and editorial integrity. https://www.bookpi.org/about-us/ B P International Joins SDG Publishers Compact Please visit the programme’s website: https://www.un.org/sustainabledevelopment/sdg-publishers-compact-members/ Reg. Offices: India: B P international, Guest House Road, Street no - 1/6, Hooghly, West Bengal, India, Corp. Firm Registration Number: L77527, Tele: +91 7439016438 UK: B P international, 27 Old Gloucester Street London WC1N 3AX, UK, Fax: +44 20-3031-1429

Physical Science International Journal Certificate of Excellence in Reviewing Awarded to Professor Assoc Tihomir Dovramadjiev PhD Eng Certificate No: SDI/HQ/PR/Cert/64386/TIH Physical Science International Journal Certificate of Excellence in Reviewing Awarded to Assoc Prof Tihomir Dovramadjiev PhD Eng. PUBLONS: https://publons.com/journal/28056/physical-science-international-journal/ Physical Science International Journal (ISSN: 2348-0130) publishes original research articles, review articles and short communications, in all areas of Physics, Chemistry and Earth Sciences. This is a quality controlled, peer-reviewed, open access INTERNATIONAL journal. https://www.journalpsij.com/index.php/PSIJ Index Copernicus (ICV: 100.00), CNKI (China), Chemical Abstracts Service (CAS, American Chemical Society), NAAS score: 4.69, Google Scholar, Qualis (Brazilian index), Microsoft Academic, etc. Subject matters include study in all areas of Physics, Chemistry, Engineering, Material Science, Astronomy, Natural Science, Earth Sciences and other related fields: Fundamental physics, applied physics, atomic, molecular and optical physics, nuclear and particle physics, astrophysics and physical cosmology, artificial intelligence, neural processing, physics in medicine and biology, plasma physics, biophysics, econophysics, geophysics, neurophysics, psychophysics, wireless and optical communications, quantum mechanics, materials science, nanotechnology and engineering, energy and fuels, environmental science, electronics, embedded systems, signal processing,inorganic chemistry, organic chemistry, biochemistry, physical chemistry, analytical chemistry, neurochemistry, combinatorial chemistry, molecular therapeutics, geochemistry and metallurgy.

Chemical Science International Journal Certificate of Excellence in Reviewing Awarded to Prof Assoc Tihomir Dovramadjiev PhD Eng Certificate No: SDI/HQ/PR/Cert/59497/TIH https://www.journalcsij.com/index.php/CSIJ Chemical Science International Journal (ISSN: 2456-706X) 1. Index Copernicus ICV: 100.00 (Proof: https://bit.ly/index-copernicus-CSIJ) 2. CNKI (China) 3. Chemical Abstracts Service (CAS, American Chemical Society) 4. Qualis (Brazilian index) 5. NAAS score: 3.67 (Chemical Science International Journal) | NAAS score: 5.28 (Past: American Chemical Science Journal) (Proof: https://bit.ly/NAAS-2020) 6. Google Scholar https://scholar.google.com (h5-index: 5 and h5-median: 8) 7. PKP | Index (Proof: https://bit.ly/PKP-CSIJ) 8. ScienceOpen (Proof: https://bit.ly/ScienceOpen-CSIJ) 9. Quality Open Access Market (QOAM) 10. JournalTOCS (Proof: https://bit.ly/JournalTOCS-CSIJ) 11. CrossRef (https://doi.org/10.9734/CSIJ) 12. SHERPA/RoMEO (UK) (https://sherpa.ac.uk/romeo/search.php?issn=2249-0205) 13. WorldCAT (https://www.worldcat.org/) 14. Microsoft Academic (https://academic.microsoft.com/) 15. Journalseek (https://journalseek.net/) 16. Citefactor (https://www.citefactor.org/) 17. ResearchGate (https://www.researchgate.net/) 18. ACADEMIA (https://www.academia.edu) 19. iSEEK (https://education.iseek.com/iseek/home.page) 20. Semanticscholar (https://www.semanticscholar.org/) 21. RefSEEK (https://www.refseek.com/) 22. WorldWideScience (https://worldwidescience.org/) 23. Bielefeld Academic Search (https://www.base-search.net/) 24. AGRIS 25. HINARI 26. Analytical sciences digital library 27. CiteSeerX (https://citeseerx.ist.psu.edu) 28. INSPIRE-HEP (https://inspirehep.net/?ln=en) 29. Mendeley 30. OAIster 31. OpenSIGLE 32. Paperity 33. RePEc 34. SSRN 35. CORE (https://core.ac.uk/) 36. Baidu Scholar 37. Sparrho (https://www.sparrho.com/) https://www.journalcsij.com/index.php/CSIJ/abstracting-indexing https://publons.com/journal/51063/chemical-science-international-journal/

English Academy Varna - Certificate - Intermediate B. Council of Europe Level B1 https://www.researchgate.net/publication/333390356_English_Academy_Varna_-_Certificate_-_Intermediate_B_Council_of_Europe_Level_B1 (2016) English Academy Varna. Intermediate B. Council of Europe Level B1. 48 hours – successfully completed course between September – December 2016. Certificate. https://www.englishacademybg.com/en/varna

Performance of European Law in Customs and Market Supervisory https://www.researchgate.net/publication/327537547_Performance_of_European_Law_in_Customs_and_Market_Supervisory DOI: 10.13140/RG.2.2.34421.69601 UQEB - Union of Quality Experts in Bulgaria. MZ 07 / 13.05.2008. Certificate

Business Security Basics and Managment. Protection in Crisis https://www.researchgate.net/publication/327537548_Business_Security_Basics_and_Managment_Protection_in_Crisis DOI: 10.13140/RG.2.2.20999.92321 UQEB - Union of quality experts in Bulgaria. KRIZI01/20.05.2009. Certificate.