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Deduplication is widely adopted in virtual machine(VM) backup to save storage space. However, the deduplication storage could cause serious fragmentation, which severely affects the performance of restoring VMs. Current studies mainly focus on backups from a single data source, whereas the backup of VM images is usually a group of behaviors. Exploiting the block reference helps to defragment deduplication...
In this paper, considering the characteristics of smart grid, a smart grid pilot city planning post evaluation index system is established, and it is divided into six parts: intelligent power, intelligent transmission and distribution network, communication system, intelligent substation, intelligent consumption, performance and environmental. Each section covers three parts: forecast, scale, and...
This paper studies the problem of evaluation index system and weight of index system. Firstly, we define energy efficiency of distribution transformer and discuss the influence of energy efficiency of distribution transformers on distribution network to make the index more general. Secondly, we establish an index system of distribution network for economic evaluation. Thirdly, an improved AHP (Analytic...
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