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It is crucial to develop a CNT-based x-ray source operating at low gate voltage with high emission current density. We have performed electron optics simulations for a few potentially effective structures. For higher emission current at lower gate voltage, it is desirable to use an emitter shape with higher field enhancement factor. We have devised a structure with line emitters with a rectangular...
The UAVs are controlled by the control system that is including the sophisticated software to stabilize and move the plants. In the development of the UAVs, financial waste and time cost is grown because even a failure could cause break of whole system. Especially, in the multi UAVs which is crowding and communicating between each system, the increase of the interaction causes terrible complexity,...
Traditional applications are executed using the restricted resources of a single computer, do not consider contextual information, and can not support mobile users. However, ubiquitous applications provide optimal services for mobile users using the various resources of computers and the contextual information around users and devices. Thus, ubiquitous applications need to have the functionality of...
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