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The organic electric insulator in polytetrafluoroethylene (PTFE) is widely used under extreme conditions of temperature and electric field. Nowadays, operating temperature of this kind of insulators can reach about 350 °C for new generations of machines, which is above than the melting temperature of the material (327 °C). These severe operating conditions can be factors of ageing acceleration and/or...
Epoxy/AlN composites were prepared using high purity AlN particles with an average size of 1.1 μm. AlN particles were surface-treated with three kinds of silane coupling agents and three kinds of surface-modifiers. Dielectric properties and thermal conductivity were evaluated. As a result, it was found that silane coupling agents with epoxy, mercapto, and amino groups create higher thermal conductivity...
The organic electric insulator polytetrafluoroethylene (PTFE) is used in aerospace industry under extreme conditions of temperature and electric field. The melting temperature of PTFE is about 327°C. In our days operating temperature of this kind of insulators could punctually reach 300°C and 350°C for the new generation machines. This last temperature is above the melting temperature of the material...
This paper presents a differential affinity sensor for continuous glucose monitoring. The sensor, based on microelectromechanical systems (MEMS) technology, consists of two magnetically driven vibrating diaphragms each situated inside a microchamber. The chambers respectively contain solutions of poly(N-hydroxyethyl acrylamide-ran-3-acrylamidophenylboronic acid) (PHEAA-ran-PAAPBA), a glucose-binding...
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