Tottori University 2 articles published in JoVE Environment Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar Hirotaka Saito1, Seiichiro Kuroda2, Toshiki Iwasaki1, Haruyuki Fujimaki3, Nobuhito Nagai4, Jacopo Sala5 1Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 2National Institute for Rural Engineering, National Agriculture and Food Research Organization, 3Arid Land Research Center, Tottori University, 4GeoFive Co. Ltd, 53D-Radar Here we present a Ground Penetrating Radar (GPR) system based on a ground-coupled, densely populated antenna array for monitoring the dynamic process of subsurface water infiltration. A time-lapse radar image of the infiltration process allowed estimating the depth of the wetting front during the course of the infiltration process. Engineering Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere Naoto Kakuta1, Keisuke Nishijima1, Van Cuong Han1, Yuki Arakawa1, Katsuya Kondo2, Yukio Yamada3 1Department of Mechanical Engineering, Tokyo Metropolitan University, 2Department of Electrical and Electronic Engineering, Tottori University, 3Brain Science Inspired Life Support Research Center, The University of Electro-Communications A technique utilizing wavelengths of 1150 and 1412 nm to measure the temperature of water surrounding an induction-heated small magnetic sphere is presented.