Nicholas Musembi Maundu

Graduate school of engineering, Ashikaga Institute of Technology, Japan, 268-1 Omae, Ashikaga Tochigi, 326-8558, Japan

Kosgei Sam Kiptoo

Graduate school of engineering, Ashikaga Institute of Technology, Japan, 268-1 Omae, Ashikaga Tochigi, 326-8558, Japan

Kiprop Eliud

Graduate school of engineering, Ashikaga Institute of Technology, Japan, 268-1 Omae, Ashikaga Tochigi, 326-8558, Japan

Dickson Kindole

Graduate school of engineering, Ashikaga Institute of Technology, Japan, 268-1 Omae, Ashikaga Tochigi, 326-8558, Japan

Yuichi Nakajo

Division of Renewable Energy and Environment, Ashikaga Institute of Technology, 268-1 Omae, Ashikaga Tochigi, 326-8558, Japan