1. Department of Energy SciencesLund University Lund Sweden
2. Marine Engineering CollegeDalian Maritime University Dalian China
3. School of Materials and EnergyUniversity of Electronic Science and Technology of China Chengdu China
4. Facultad de Ingeniería Mecánica y Ciencias de la ProducciónEscuela Superior Politécnica del Litoral Guayaquil Ecuador