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Network-attached storage (NAS) provides cyberphysical systems (CPS) with the scalable, efficient, and reliable backing storage, such as the mobile virtual desktop based on cloud infrastructure. Within this storage architecture, virtual machine (VM) instances running in the NAS client usually receive data from the complex physical world and then persist them in the neat cyberspace in the NAS server...
Different from data parallel model, task parallel computing model is very important for complex analysis and data mining. Task granularity is a key factor that significantly affects the performance of task-centric parallel programs. However, current task-granularity based solutions either only work well for regular task-parallel programs or are difficult to use. As a result, for irregular task-parallel...
The paper develops a diode-bridge rectifier model based on dynamic phasors (DP) concept. The model is targeted at the functional modeling level according to the multi-layer modeling definition. The performance and efficiency of the developed model have been revealed by comparison against abc three-phase model and dq0 functional model under balanced and unbalanced conditions. The comparison shows the...
Terahertz surface plasmon polaritons propagating in the surface of semiconductor are switched by varying the plasma frequency through a temperature effect. A device design is proposed to achieve the desired functionality.
In this work we design a virtual backbone to provide energy-efficient communication in Wireless Sensor Networks (WSNs). WSNs need virtual backbones to support in-network data transmission. In scenarios where there is no spatial redundancy (such as a sensor network in a petroleum installation), Connected Dominating Set (CDS)-based algorithms can be useful for hierarchical network management. We construct...
The wireless mesh network is a new emerging technology exploiting the advantages of multiple radios and multiple channels. In this paper we have studied the channel assignment problem which is to assign channels to links in the network, and aimed at minimizing the network interference so as to improve the network throughput. The channel assignment problem is proved to be NP-hard. In this paper, we...
This paper describes design strategies for ultra low-power analog cells. It is assumed that the circuits are used in sampled-data systems with only capacitors and switches. The operation requires large currents to quickly charging or discharging capacitors and, after a transient, a very small quiescent current. The proposed strategy uses dynamically controlled bias current that leads to a very low...
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