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We present a type of high performance contact-separation mode triboelectric generators (TEG). The TEGs consist of a poly(vinylidene fluoride) composite with embedded barium titanate nanomaterial (PVDF-BaTiO3) and polyamide-6 (PA6). Additional BaTiO3 nanomaterial in the PVDF increase the relative permittivity and piezoelectric effect, thus enhance the performance of the TEGs. Owing to the increased...
The space-time effect during soft clay soil areas deep foundation pit excavation is an objective reality. The time taking of excavation is an important index of foundation designment and construction parameters determination. In this paper, based on one station foundation pits of NO.2 subway in Wuhan city, the 2-D numerical simulation model which consider the excavation time-effect is established...
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