The European Journal of Engineering and Formal Sciences (EJEF) is a high quality open access peer reviewed research journal. The journal provides a platform for the researchers, academicians, professional, practitioners and students to impart and share knowledge in the form of high quality empirical and theoretical research papers, case studies, literature reviews and book reviews.
The EJEF welcomes and acknowledges high quality theoretical and empirical original research papers in the fields of Engineering and Formal Sciences, case studies, review papers, literature reviews, book reviews, conceptual framework, analytical and simulation models, technical note from researchers, academicians, professional and practitioners from all over the world.
Editor-in-Chief Prof. Dr. Rodica Sirbu - Editor in Chief, Ovidius University of Constanta
Managing Editor Prof. Dr. Ahmet Ecirli, INSOC, Romanian Academy, Romania
Editorial Advisory Board Dr. Sergi Cortiñas Rovira, Universitat Pompeu Fabra, Spain Prof. Dr. Nikos Nagopoulos, University of Aegean, Greece Prof. Dr. Panduranga Charanbailu Bhatta, Indian Institute of Management CalcuttaJoka, India Dr.Laura Mercolini, Department of Pharmacy and Biotechnology FaBiT, Alma Mater Studiorum - Università di Bologna, Italy Dr. Mariann Veresné Somosi, University of Miskolc, Hungary Dr. Cristina-Luiza Erimia, Ovidius University of Constanta, Romania Dr. Khamsiah Ismai, IIU, Malaysia Dr. Angeliki Markoglou, University of Athens, Greece Dr. Suo Yan Mei, USIM, Malaysia Dr. Vesna Mrdalj, University of Banja Luka, Bosnia and Herzegovina Prof. Dr. Elena Firpo, University of Genoa, Italy Dr. Lluca Ferrari, Dipartimento di Scienze dell' Educazione 'G.M. Bertin', Alma Mater Studiorum - Università di Bologna, Italy Dr. Miriam Aparicio, Universidad Nacional de Cuyo, Argentina Dr. Elisabete Duarte, Polytechnic Institute of Leiria, Portugal Dr Agnieszka Stanimir, Wroclaw University, Poland Dr. Nathaporn Thaijongrak, Srinakharinwirot University, Thailand Dr. Barbara Roncevic Zubkovic, University of Rijeka, Croatia Prof. Dr. Gabriela Stanciu, Ovidius University of Constanta, Department of Chemistry and Chemical Engineering Prof. Dr. Edy Darmawan, Diponegoro University, Malaysia Dr. Euripides Antoniades, Cyprus University of Technology, Cyprus Prof. Dr. Chong Ho Yu, Azusa Pacific University, USA Prof. Dr. Wan Kamal Mujani, The National University of Malaysia Dr. Paul Terna Gbahabo, University of Stellenbosch Business School, South Africa Mg.iur, Karina Palkova, Riga Stradins University, Latvia Prof. Dr. Tatiana Pischina, Republic of Moldova
Editors Prof. Dr. Ahmet Ecirli, INSOC, Romanian Academy, Romania Prof. Dr. Rodica Sirbu - Editor in Chief, Ovidius University of Constanta Dr. Suo Yan Mei, USIM, Malaysia Dr. Lluca Ferrari, Università di Bologna, Italy
Language Editors Mihaela Koban, USA Robert Cook, UK
Technical Editors Mihaela Koban, USA
Publisher DE GRUYTER POLAND Bogumiła Zuga 32A Str. 01-811 Warsaw, Poland T: +48 22 701 50 15