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Nonlinear energy generators are considered as an effective way to overcome the shortcut of narrow band of linear generators. Among them, bistable oscillators are especially of great potential. Many are realized with magnets and so are not well suited for miniaturization. This paper presents a novel bistable piezoelectric energy harvesting architecture without magnets. Modeling and design have been...
Deployment of sensor nodes in a sensor network is a critical task as node deployment should be optimum to increase network lifetime. In this paper, we first investigate the theoretical aspects of the non-uniform node deployment strategy in multi-hop heterogeneous wireless sensor networks. We then predict optimum deployment of micro-server nodes and propose a non-uniform node deployment scheme by calculating...
Technological advances in three basic fields mobile devices, communication, services architecture have helped the vertiginous evolution of mobile GI services. Mobile computing scenario, which take into account the relative position of users, service components, and available resources, encourages the development and deployment of innovation services. As for Mobile GI Services application, the driving...
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