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We propose ultra-compact all-optical XOR and AND logic gates based on multi-mode interference (MMI) without using nonlinear optics. Numerical simulations show that the least ON to OFF logic-level contrast ratio is 13.3 dB for XOR logic gate and 4.3 dB for AND logic gate in the whole C-band.
It is possible to retrieve vertical profiles of cloud microphysical properties, using radar reflectivity factor observed by CPR (Cloud Profiling Radar), which leads to better understanding of cloud radiative forcing. In this study, vertical profiles of cloud microphysical properties (e.g., effective radius, liquid water content, cloud optical thickness, etc,) retrieved from the ground-based FMCW CPR...
In this paper, a ldquofleshrdquo of a humanoid robot with multisensory superficial sense is described. In order for a robot to behave in contact with an environment and people, it is necessary to have rich superficial sense. We have developed a humanoid robot with thick soft cover s with three-axis force/torque sensors inside the covers. The thick cover configuration enables holding multiple kinds...
In order for humanoids to be able to have close interactions with humans or environments using whole body contacts, development of humanoids with soft sensor flesh is one of the key issues. Therefore we have been developed dasiamacrapsila, a humanoid with soft sensor flesh, and it can sense distributed 3D force directions during interaction behavior with humans or environments. However, development...
In this paper, the development of a robot which has "flesh" made of soft polyurethane foam is presented. In order for a robot to behave in contact with an environment, people and itself, it is necessary to have not only rigid bone but also soft flesh. We developed a small humanoid robot "macra" which has thick soft flesh with distributed tactile sensors. A comparative discussion...
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