Symposium Series

Department of Astronautical Engineering, Erciyes University

Symposium Chair: Dr. Harun Celik, Assistant Professor in Erciyes University

The symposium, 'Advances in Sustainable Aviation and Aerospace Vehicle Automation', took place on 14 November 2025. Preliminary results from six ongoing research projects supervised by Dr Harun Celik were presented. The first study modeled the relative motion of the chaser spacecraft towards the ISS using CW dynamics, PD control and UKF-based estimation. The results demonstrated a stable, spiral-like approach from 1000 m to 100 m, thus validating the effectiveness of the control–estimation strategy. The second study involved the development of an integrated ADCS for a CubeSat, incorporating B-dot detumbling, quaternion-based PD pointing and reaction wheel momentum management. The results show that the system achieves rapid post-launch stabilization and accurate attitude pointing. The third study modeled an antenna azimuth control system through a transfer-function-based Simulink structure, prototyped it, and tested it using PID and fuzzy controllers. The results showed that the real-time performance closely followed the model, with the PID controller offering superior stability. The fourth study evaluated aerodynamic predictions for the Cessna 172 by using a neural network. The results showed that the coefficients corrected using the neural network closely matched the CFD data. The fifth study involved developing a vision-based method to estimate the moment of inertia of UAVs. The system analyses free-swing motion without the need for rigid test rigs, and its accuracy was validated through analytical calculations, CAD modeling and experimental measurements.

Eskisehir Osmangazi University

Symposium Chair: Dr. Ömer Burak Istanbullu, Assistant Professor in Eskisehir Osmangazi University

The symposium provided an advanced platform for researchers and scientists working at the interface of electrochemistry, biomaterials, and biomedical device engineering. The sessions focused on contemporary electrochemical strategies for probing structure–property–function relationships in biomaterials exposed to physiologically relevant environments. Research discussions addressed electrochemical degradation kinetics, interfacial charge-transfer phenomena, and surface-mediated reactions governing the long-term stability and performance of metallic, polymeric, ceramic, and composite biomaterials. Particular emphasis was placed on correlating electrochemical response with microstructural features, surface modifications, and functional coatings, enabling mechanistic interpretation beyond conventional assessments of material performance. In addition, significant attention was devoted to electrochemical biosensors and implantable sensing systems, focusing on material selection, interface engineering, and signal stability for real-time monitoring of biological processes and tissue–material interactions. Overall, the symposium reinforced electrochemistry as a high-resolution, mechanism-oriented research framework, supporting the development of next-generation biomaterials and biointegrated devices.

Federation University Australia

Symposium Chair: Dr. Manoj Khandelwal, Associate Professor and Program Coordinator of Mining Engineering

This symposium will focus on advancing knowledge and practical approaches to slope stability through the study of geomaterials, testing methods, and climate-resilient design strategies. Participants will gain insights into how laboratory investigations, field monitoring, and numerical modelling can be integrated to better understand slope behaviour under varying hydro-mechanical and climatic conditions. Specific themes include advanced laboratory testing of soils, rocks, and soil-rock mixtures; coupled hydro-mechanical modelling of slope behaviour; the role of rainfall, groundwater, and extreme weather events in triggering failures; application of numerical and data-driven approaches for slope analysis; and strategies for climate-resilient slope design and monitoring. The symposium will also highlight case studies linking research to practice, offering a platform for knowledge exchange between academia, industry, and government. Participants are encouraged to contribute experiences, methodologies, and innovations that can inform safer and more sustainable slope engineering practices.

Highlights

Title of Speech: On the Assessment Methods for the Flying Quality of Fixed-Wing Unmanned Aerial Vehicles

Presented by: Dr. Harun Celik, Erciyes University

Title of Speech: Energy Technologies, Quality of Institutions and Sustainable Environmental Practices in African Countries

Presented by: Dr. Javier Cifuentes-Faura, Defense University Center

Title of Speech: Co-digestion of Polylactide and Kitchen Garbage in Different Anaerobic Methane Fermentation System

Presented by: Dr. Feng Wang

Title of Speech: Research on Excited-state Processes in Novel Micro/nanolasing Materials and Devices

Presented by: Dr. Tongjin Zhang, Tsinghua University