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     · The printed circuit board (PCB) is a major constituent of these obsolete and discarded electronic scraps. The typical composition of PCB is non-metals (plastics, epoxy resins, glass) >70%, copper ~16%, solder ~4%, iron, ferrite ~3%, nickel ~2%, silver 0.05%, gold 0.03%, palladium 0.01%, others (bismuth, antimony, tantalum, etc.) <0.01% .

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     · The PCA represents the data in a new coordinate system by using linear transformations and is a widely used technique for dimensionality reduction and as preprocessing for clustering techniques 37.

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  • Challenges and opportunities for supercapacitors APL

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  • Electronic waste generation, economic values, distribution

     · Based on the e-waste estimation generation from four IT products (in Fig. 10a), the major potential recoverable metals (in particular copper, gold, silver, platinum and palladium) in the e-waste were estimated by quantifying the amount of the printed circuit board (PCB) and the associated metals content (cumulative amounts as shown in Fig. 10b and c). These elements were considered because

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  • Smart textiles for multimodal wearable sensing using

     · The PCA represents the data in a new coordinate system by using linear transformations and is a widely used technique for dimensionality reduction and as preprocessing for clustering techniques 37.

  • Smart textiles for multimodal wearable sensing using

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  • Technical Glossary Applied Materials

     · A doping process that deposits a conformal layer of material containing the desired dopant species and then uses a thermal process to drive the dopants to a controlled depth in the underlying circuit structures. CPD provides a means to dope complex, 3D structures. Doping is traditionally performed by ion implantation, which bombards the wafer with dopant ions moving at high speed.

  • Smart textiles for multimodal wearable sensing using

     · The PCA represents the data in a new coordinate system by using linear transformations and is a widely used technique for dimensionality reduction and as preprocessing for clustering techniques 37.

  • Challenges and opportunities for supercapacitors APL

     · The device has ultrathin thickness (<20 μm), exceptional electrochemical energy storage properties, high transparency (>80%), and outstanding resistance to bending properties, after many folds and fully kneads into a ball. The device capacitance is nearly constant, not obvious attenuation in performance, and in return to the initial flat form performance goes back to the initial state, reflecting

  • Enabling the recycling of rare earth elements through

     · This unit is connected to a small applied printed circuit board with thin Au and Cu wires. The comparative disassembly of hard disk drives from Notebooks (~134 g average weight) showed slightly higher shares for the magnets with 5.8 ± 0.7 % (voice-coil 4.7 ± 1 % spindle 1.2 ± 0.4 %) and for the PCB with 13.1 ± 0.2 %.

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     · Primary batteries always have high specific energy and the systems in which they are used are always designed to consume low amount of power to enable the battery last as long as possible. Some other examples of devices using primary batteries include Pace makers, Animal trackers, Wrist watches, remote controls and children toys to mention a few.

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  • Characterizing the transboundary movements of UEEE/WEEE

     · Regarding UEEE re-export, except the used CRT monitors, the dominant re-export destination was Hong Kong 87.54% of used laptop and tablet PCs 97.77% of used mainframes and 55.74% of used LCD monitors. For used CRT monitors, Hong Kong was the second largest re-export destination, accounting for 32.94%.

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