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Wei Li, Bernhard Esders, and Matthias Breier (2013)

SMD segmentation for automated PCB recycling

In: , pp. 65-70 (ISBN: 9781479907526).

Due to the complex structure and the great variability of printed circuit boards (PCBs), an accurate analysis of their material composition and consequently an efficient recycling is currently hardly possible. Facing these problems, we proposed an automated PCB recycling system with a core component for the information retrieval. As a first step towards automated recycling based on a comprehensive analysis of PCBs, the segmentation of surface-mounted devices (SMDs) was presented in this paper. Inspired by the technical background of SMDs, they were divided into two main groups: 1. small devices, such as resistors, capacitors, and 2. integrated circuits (ICs). Then assembly print-based segmentation and color distribution-based segmentation were carried out for the two groups respectively. In comparison to device template-based and solder joint-based approaches, our approach is more flexible and more reliable with respect to the variability of devices and the erosion or soiling of solder joints. As confirmed by the evaluation, satisfying results were obtained. The approach was also evaluated for different imaging conditions so that improved performance can be achieved using appropriate imaging settings. © 2013 IEEE.

PCB recycling, SMD, Segmentation, imaging

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The Material Limits of Energy Transition: Thanatia

Antonio Valero Capilla, Alicia Valero Delgado and Guiomar Calvo

This book provides a holistic view of raw mineral depletion in the context of renewable energy transistion.

The material limits Thanatia


Thanatia. Los límites minerales del planeta

mites minerales del planeta

 Antonio Valero Capilla and Alicia Valero Delgado interviewed by Adrián Almazán

We need a material transition, not only energetic, that restores nature and effectively reuses materials. Gaia must be cared for by extending life on Earth and slowing its degradation towards Thanatia.

Thanatia los limites


Thermodynamics for Sustainable Management of Natural Resources

Cover Thermodynamics

Wojciech Stanek (Editor)

This book examines ways of assessing the rational management of nonrenewable resources. Integrating numerous methods, it systematically exposes the strengths of exergy analysis in resources management.

Thanatia: The Destiny of the Earth's Mineral Resources

Cover Thanatia

A Thermodynamic Cradle-to-Cradle Assessment by (author): Antonio Valero Capilla and Alicia Valero Delgado

Is Gaia becoming Thanatia, a resource exhausted planet? For how long can our high-tech society be sustained in the light of declining mineral ore grades, heavy dependence on un-recycled critical metals and accelerated material dispersion? These are all root causes of future disruptions that need to be addressed today.