Lan, Guohao, Sara Khalifa, Mahbub Hassan, and Wen Hu. “Estimating Calorie Expenditure from Output Voltage of Piezoelectric Energy Harvester - an Experimental Feasibility Study”. EAI Endorsed Transactions on Pervasive Health and Technology 2, no. 7 (December 14, 2015): e4. Accessed November 22, 2024. https://publications.eai.eu/index.php/phat/article/view/1331.