Part A: Process Engineering, Modelling and Optimisation Analytical and numerical study for minimum weight sandwich structures A. Al-Fatlawi, K. Jármai & G. Kovács Estimation of compressive strength of current concrete materials: Effect of core diameter and maximum aggregate size M.E. Belgacem, A. Brara & A. Ferdjani The effect of the gear wear for the contact ratio J. Bihari Determination of GTN parameters using artificial neural network for ductile failure Y. Chahboub, S. Szabolcs & H. Aguir Investigating three learning algorithms of a neural networks during inverse kinematics of robots H.M. Ghafil, L. Kovács & K. Jármai Prediction of distillation plate’s efficiency V. Kállai, P. Mizsey & L.G. Szepesi CAD tools for knowledge based part design and assembly versioning K. Nehéz, P. Mileff & O. Hornyák Heat transfer analysis for finned tube heat exchangers M. Petrik, L.G. Szepesi & K. Jármai Effect of soil reinforcement with stone columns on the behavior of a monopile foundation subjected to lateral cyclic loads S.A. Rafa, I. Rouaz & A. Bouaicha Performance of Cold Formed Steel Shear Wall Panel with OSB Sheathing under lateral load I. Rouaz, S. Rafa & A. Bouaicha The use of the linear sliding wear theory for open gear drives that works without lubrication F. Sarka Numerical simulation methods of stress corrosion cracking B. Spisák, Z. Siménfalvi, Sz. Szávai & Z. Bézi Implementation of a customized CAD extension to improve the calculation of center of gravity M. Szabó, P. Mileff & K. Nehéz Part B: Sustainable and Renewable Energy and Energy Engineering Towards CHP system: Preliminary investigation and integration of an ORC cycle on a simple gas boiler M. Amara, H. Semmari & A. Filali Examination the effect of environmental factors on a photovoltaic solar panel I. Bodnár, L.T. Tóth, J. Somogyiné Molnár, N. Szabó, D. Erdosy & R.R. Boros Thermal behaviour of PCM-gypsum panels using the experimental and the theoretical thermal properties-Numerical simulation F. Boudali Errebai, S. Chikh, L. Derradji, M. Amara & A. Terjék Experimental and numerical study of the thermal behavior of a building in Algeria L. Derradji, F. Boudali Errebai, M. Amara. A. Limam & A. Terjék Comparison of Sakiadis and Blasius Flows using Computational Fluid Dynamic M.M. Klazly & G. Bognár Techniques for evaluation of mixing efficiency in an anaerobic digester B. Singh, Z. Szamosi & Z. Siménfalvi Part C: Waste Management and Reverse Logistics Vehicle routing in drone-based package delivery services A. Agárdi, l. Kovács & T. Bányai Cyber-physical waste collection system: a logistics approach M.Z. Akkad & T. Bányai Efficiency improvement of reverse logistics in Industry 4.0 environment I. Hardai, B. Illés & Á. Bányai Application of sigmoid curves in environmental protection F.J. Szabó Part D: Environmental Management and Ecodesign Comparative study of the influence of traditional walls with different typologies and constructive techniques on the energy performance of the traditional dwellings of the Casbah of Algiers H.F. Arrar, A. Abdessemed Foufa & D. Kaoula Rules of environmentally friendly packaging Á. Takács Part E: Circular Economy and Life Cycle Approaches Aluminium infinite green circular economy – theoretical carbon free infinite loop, combination of material and energy cycles N. Babcsán Life Cycle approach of a new Industrial Symbiosis alternative B.S. Gál, R.S. Bodnárné & Zs. István Possibilities for adopting the circular economy principles in the EU steel industry Á. Kádárné Horváth, M. Kis-Orloczki & Á. Takácsné Papp Influence of urban morphology on the environmental impactsof district. Applied LCA D. Kaoula & A. Abdessemed Foufa Life cycle extension of damaged pipelines using fiber reinforced polymer matrix composite wraps J. Lukács, Zs. Koncsik & P. Chován Innovative solutions for the building industry to improve sustainability performance with Life Cycle Assessment modelling V. Mannheim, Zs. Fehér & Z. Siménfalvi Investigation of different foam glasses with Life Cycle Assessment method A. Simon, K. Voith & V. Mannheim Circular economy solutions for industrial wastes K.T. Szita, Zs. István, R.S. Bodnárné & A. Zajáros New approach for characterizing the “naturalness” of building materials A. Velosy Part F: Smart Manufacturing and Smart Buildings Grouping and analyzing PLC source code for smart manufacturing O. Hornyák Environmental assessment of buildings in Sudan S.A.A. Ismail & Zs. Szalay Part G: Innovation and Efficiency The innovation shell, and barriers of disruptive innovation Z. Bartha & A.S. Gubik Lifetime analyses of S960M steel grade applying fatigue and fracture mechanical approaches Zs. Koncsik Efficient application of S690QL type high strength steel for cyclic loaded welded structures H.F.H. Mobark & J. Lukács Improvement of the modern house’s energy efficiency in the regionof In Saleh S. Oukaci, A. Hamid, D. Sammar, S. Sami & A. Naimi Innovative and efficient production of welded body parts from 6082-T6 aluminium alloy R.P.S. Sisodia & M. Gáspár Redundancy Analysis of the Railway Network of Hungary B.G. Tóth Part H: Earth Science A short discussion on some influencing factors of an artificial corrosion system and obtained metallic pipe samples H.D. Thien, B. Kovács, T. Madarász & I. Czinkota