Ground Temperature Difference Driven Sensor for Environmental Monitoring. - Natsuki Ikeda; Ryo Shigeta; Junichiro Shiomi; Yoshihiro Kawahara (UbiComp/ISWC Adjunct, 2018)

Energy Prediction for Energy Management Method of Sensor Node Powered by Temperature Difference Between Air and Shallow Underground Soil. - Natsuki Ikeda; Ryo Shigeta; Yoshihiro Kawahara (IEEE SENSORS, 2019)

Soil-Monitoring Sensor Powered by Temperature Difference between Air and Shallow Underground Soil. - Natsuki Ikeda; Ryo Shigeta; Junichiro Shiomi; Yoshihiro Kawahara (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2020)