Tootfinder

"Copper is used in everything from electrical wiring and building construction to cars, phones, and industrial machinery. A tariff like the one proposed by Trump could ripple through supply chains, driving up prices for companies and consumers alike."
Copper price hits record high after Trump floats 50% tariff
https://qz.com/copper-record-price-trump-50-percent-tariff

ViPSN 2.0: A Reconfigurable Battery-free IoT Platform for Vibration Energy Harvesting
Xin Li, Mianxin Xiao, Xi Shen, Jiaqing Chu, Weifeng Huang, Jiashun Li, Yaoyi Li, Mingjing Cai, Jiaming Chen, Xinming Zhang, Daxing Zhang, Congsi Wang, Hong Tang, Bao Zhao, Qitao Lu, Yilong Wang, Jianjun Wang, Minyi Xu, Shitong Fang, Xuanyu Huang. Chaoyang Zhao, Zicheng Liu, Yaowen Yang, Guobiao Hu, Junrui Liang, Wei-Hsin Liao

ViPSN 2.0: A Reconfigurable Battery-free IoT Platform for Vibration Energy Harvesting
Vibration energy harvesting is a promising solution for powering battery-free IoT systems; however, the instability of ambient vibrations presents significant challenges, such as limited harvested energy, intermittent power supply, and poor adaptability to various applications. To address these challenges, this paper proposes ViPSN2.0, a modular and reconfigurable IoT platform that supports multiple vibration energy harvesters (piezoelectric, electromagnetic, and triboelectric) and accommodates…

Integrating Upstream Supply Chains into Generation Expansion Planning
Boyu Yao, Andrey Bernstein, Yury Dvorkin
https://arxiv.org/abs/2508.03001 https://arx…

Integrating Upstream Supply Chains into Generation Expansion Planning
Rising electricity demand underscores the need for secure and reliable generation expansion planning that accounts for upstream supply chain constraints. Traditional models often overlook limitations in materials, manufacturing capacity, lead times for deployment, and field availability, which can delay availability of planned resources and thus to threaten system reliability. This paper introduces a multi-stage supply chain-constrained generation expansion planning (SC-GEP) model that optimize…