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This paper reports a cantilever with comb structure, inspired by a bristled wing of thrips which acts as a continuous membrane wing because of the effects of low Reynolds numbers. The comb structures are formed at the edges of the cantilever and its surrounding frame. When differential pressure is applied to the cantilever, both comb structures act as airflow suppression through the gap. The leakage...
In this paper, we proposed a fabrication method of a double-layer split-ring-resonator (SRR) array for metamaterials in the terahertz (THz) frequency range. Our fabrication method leads to three-dimensional metamaterials.
This paper reports on a photodiode (PD) with micro texture for miniaturizing particle sensors. We proposed an optical system for a small particle-sensor without focus lenses. The system requires a PD which is high sensitive at large angle of incidence. The micro texture was fabricated on a surface of the PD to achieve the required property. The micro texture was an array of columnar-like structures...
We propose a nanocrystalline porous silicon (nc-PS) ultrasonic transmitter with a variable directional pattern. The directional pattern is realized by using an interference effect. An ultrasonic wave is emitted from electrodes on the nc-PS layer according to the applied electrical current. The emission areas of the transmitter were patterned in order to use the interference between the emitted ultrasonic...
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