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We propose a 5×5 arrayed MEMS planar tactile display device (1 mm pitch) consists of SMA thick film actuator array and photo-lithographed SU8 micro-mechanism of bias spring, micro-pin, and cap array. The SU8 bias spring was designed so that the tactile display can generate 20 μm displacement and 5 mN force when it is combined with the SMA actuator in static motion. The amplitude of the tactile display...
Red harvester ants, Pogonomyrmex barbatus, allocate themselves to some tasks: foraging, midden work, nest maintenance etc. In this paper, we propose the macro model of their behavior by PDE. In this model, colony size, that is the total number of ants in a colony, fluctuates due to workers' birth and death. And then, using the simulator which is based on this model, we investigate the relationship...
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