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In order to improve the ability of harmonic reduction at DC link of multi-pulse rectifier (MPR), the harmonic reduction mechanism at DC link of two kinds of 24-pulse rectifiers with double-tapped interphase reactor (IPR) or auxiliary single-phase full-wave rectifier (ASFR) was investigated. According to the configuration and Ampere-Turn balance with double-tapped IPR and single full wave rectifier,...
In order to enhance the ability of harmonic suppression for multi-pulse converters (MPCs). This paper proposes a novel pulse multiplication method at DC side of MPCs. The presented rectifier consists of a three-phase bridge parallel structure 12-pulse rectifier and a novel double winding tapped inter-phase converter (TIPC). The functions and characteristics of delta-connected autotransformer and ZSBT...
Aspect-based opinion mining is to find elaborate opinions towards an underlying theme, perspective or viewpoint as to a subject such as a product or an event. Nowadays, with rapid growing of opinionated text on theWeb, mining aspect-level opinions has become a promising means for online public opinion analysis. In particular, the booming of various types of online media provide diverse yet complementary...
Enterprise networks have become increasingly important with the rising number of users accessing their services, which consequently brings challenges in various aspects. Though Open Flow, the promising scheme for enterprise network control, can provide fine-grained and flow-level control in networks, yet it still has a few undesirable designs in security, scalability and performance. Inspired by many...
In current network, as we all know, packets delivered by routers only rely on destination-address-directed forwarding, but their source addresses are not checked. Consequently, this incurs many serious network security breach events which are hard to trackback. Under this situation, a switch (we call it SAVI switch) followed SAVI (Source Address Validation Improvement) framework proposed by IETF was...
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