Those interested in participating in the conference with a scientific paper or a poster presentation are invited to submit an abstract of their paper written in English or Greek to the email:  inoek2023@inoek.gr by 30 June 2023. The abstract, which should be between 300 and 500 words, should present the aim and objectives of the work, the methodology of the approach, the applications, and the main results. The abstract should include the following information: (1) title of the paper, (2) name(s) of the author(s), postal address, and email. All abstracts will go through the anonymous review system. Due to the international nature of the conference, those interested in submitting a paper are requested to indicate whether the paper will be presented in English or Greek.