The "ECOTECH-COMPLEX Seminar" seminars provide a platform for discussion in the field of application-oriented research - both applied for research and development work. Tightening cooperation between the spheres of science and economy requires constant dialogue. The undertaken research challenges, especially of an interdisciplinary and multi-disciplinary nature, should contribute to the integration of a dispersed scientific environment and thus create high-quality research and development works. ECOTECH-COMPLEX Seminar. Where Research Meets Applications