University of Ulsan, Nha Trang University, University of Ulsan, University of Ulsan, Hanoi National University of Education, University of Ulsan, University of Ulsan, Korea Atomic Energy Research Institute, Hanoi University of Industry, VNU University of Engineering and Technology, Vietnam Maritime University, Vietnam National University - Ho Chi Minh City (VNU-HCM) - University of Science and University of Ulsan