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100W C-band gallium nitride solid state power amplifier (GaN SSPA) was developed for satellite use. GaN SSPA has already been applied to various fields such as ground stations and radar systems. Mitsubishi Electric TOKKI Systems (MELOS) had succeeded in developing 150W S-band GaN SSPA and 70W C-band GaN SSPA for satellite use in the past. Based on these development results of the GaN SSPA, MELOS further...
In the multi-agent environment, it is important to identify position and orientation of multiple robots for accomplishing a given task in cooperative manner. This paper proposes a method for estimating position and orientation of multiple robots using multiple omnidirectional images based on geometrical constraints. Our method reconstruct not only relative configuration between robots but also absolute...
This paper describes a manipulation system integrating a geometric model and manipulation skills. The model provides the geometric structure and physical properties of the objects in the environment. The manipulation skills enable reliable task execution in the presence of unavoidable errors and uncertainties. The geometric modeler enables high level programming, using skill based task commands, for...
Irritation fibromas are recognized as fibrous lesions, usually reactive hyperplasias; however, the mechanism of enlargement is unclear. This paper reports on an abnormally large irritation fibroma of extremely gradual growth. The immunohistochemical features (CD34, α-SMA, vimentin, Ki-67, and TGF-α) of this irritation fibroma are presented to distinguish reactive hyperplasia from other true fibrous...
A new appcessory for monitoring peripheral blood flow in daily life consists of a wearable laser Doppler sensor device and a cooperating smart phone application. Bluetooth Low Energy connects them wirelessly. The sensor device features ultralight weight of 15 g and an intermittent signal processing technique that reduces power consumption to only 7 mW at measurement intervals of 0.1 s. These features...
As Human-Robot Interaction becomes closer, it is necessary to seek human safety so that the robot does not harm the human when the human ventures into the robot's workspace. Therefore, we propose a reactive strategy for human safety called Asymmetric Velocity Moderation. Our proposed method restricts the velocity of the end-effector according to the distance between human and robot. Moreover, our...
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