AMPTEK INC. 14 DeAngelo Drive, Bedford, MA 01730-2204 U.S.A. APPLICATIONS • X-Ray Fluorescence • Thin-film Analysis • RoHS/WEEE Analysis • Teaching and Research • Art and Archaeology • Process Control • X-ray Tube Characterization FEATURES • Fundamental parameters (FP) • Analysis with or without standards • General bulk and thin-film analysis • Analyze up to 40 elements • Supports all Amptek de...

This paper aims to illustrate how a general operating model of re-use of electrical and electronic equipment (EEE), and specifically for PCs in developing countries, deals with the challenges and opportunities of increasing e-waste awareness. More specifically, we focus on the role of ICT in the complex societal problem of e-waste in developing countries. The research question we put forward: H...

We discuss a prototype multiplatform system to perform remote sensing and control of physical variables i.e. temperature, based on the use of the parallel port, application software developed on java and gnu software, working on old recycled computers Pentium II (now considered as computer garbage or e-waste). In this paper, we analyze the electronic circuit that allows sensing until sixteen mu...

We argue that on electronic markets, limit and market orders should have equal effective costs on average. This symmetry implies a linear relation between the bid-ask spread and the average impact of market orders. Our empirical observations on different markets are consistent with this hypothesis. We then use this relation to justify a simple, and hitherto unnoticed, proportionality relation b...

Printed circuit boards (PCBs) are the main components of electrical and electronic equipment (EEE). Waste PCBs contain several kinds of heavy metals, including Cu, Pb and Zn. We characterize the leaching of heavy metals (Cu, Pb, Zn and Ni) from waste PCBs in a pH range of 3.0 to 5.6 using a novel approach based on batch pH-static leaching experiments in this work. The results indicate that the ...