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Multi-walled carbon nanotube/epoxy resin (MWCNT/EP) composites with filler contents from 0.03wt% to 0.5wt.% and two different aspect ratios are prepared by solution blended process. Carbon nanotubes are dispersed by sonication and high speed shear force. The impact of aspect ratio on electric and thermal conductivity of nanocomposites has been studied. Experiment results illustrate that percolation...
Epoxy resin has been widely used in dry-type insulation application, such as dry-type bushings. This study focuwes on the epoxy formulation system effect on the dielectric properties of epoxy resin. With methyl hexahydrophthalic anhydride as curing agent, we made the specimens which were mixed epoxy resin and flexible epoxy resin in different weight. Because of the proportion of flexible epoxy resin,...
Object: For realizing the Finite Element (FE) analysis of real human head electromagnetic distribution induced by Trans-cranial Magnetic Stimulation (TMS), a complex human head FE model containing seven organizational structures, i.e. scalp, skull, cerebrospinal fluid (CSF), grey matter, white matter, cerebellum and eyeballs, was established, with the distribution of conductivities, and hence the...
Ground Penetrating Radar, GPR for short, as a new non-destructive testing equipment, has been widely used for its easy operation, rapid, non-destructive, veracity, intuition and etc. In this paper, the introduction of basic working principle of GPR and application and skills of GPR in detecting the lining of water delivery tunnel was produced.
A particle manipulating micromixer was developed successfully in this study. The present device was fabricated by simply MEMS process. Only two photomasks, one for electrode array chip and another for micro-channel, were needed to manufacture the micromixer. Dielectrophoresis (DEP) force was used to manipulate the particles in the micro-channel. In this experience, polymer particles with diameter...
Oil spills in the ocean are one of major environmental concerns, especially in the costal waters. Many satellite sensors, including optical sensors and microwave sensors, have been used to detect oil spills which often exhibit different feature in the satellite images compared with the surrounding waters. In this study, we used texture feature analysis to detect oil spill using MODIS and SAR images...
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