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Epoxy composites with excellent toughness and strength have been successfully fabricated by direct incorporation of graphite fluoride (GrF) without using any solvent or surfactant modification. Owing to the strong interfacial interactions, the glass transition temperature of GrF/epoxy composites exhibits a significant improvement as observed by dynamic mechanical analysis. Mechanical characterizations...
Lasers are frequently used to locally open dielectric layers for contacting the front or rear side of advanced silicon wafer solar cell architectures. For reasons of cost, laser processes are usually carried out in ambient environment, which inevitably leads to the oxidation of silicon. In order to achieve maximum solar cell efficiency, the laser processing has to be optimized thoroughly. The current...
Electric vehicles is a new energy and environmentally friendly vehicles. But in the process of development and popularization of electric vehicles, China is facing many difficulties. By introducing a convenient rental system for electric vehicles based on internet of things for vehicle, electric vehicles can be applied in large-scale in Chinese cities.
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