Kazunari Takahashi

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This paper describes the development of a Kinect-sensor-based navigation component for JAUS (joint architecture for unmanned systems) compliant mobile robots. To achieve robust and stable navigation, the employment of a laser range finder and a Kinect sensor enables a robot to recognize three-dimensional environments. By utilizing an acquired(More)
To demonstrate altitudinal gradients (and resulting temperatures) that affect myxomycete biodiversity and species composition, we statistically compared myxomycete assemblages between a subalpine coniferous forest and a montane pine forest within the region of the Yatsugatake Mountains, Nagano Prefecture, Central Japan. In summer and autumn field surveys(More)
T he spread of cellular phones, email, and mobile computers has freed us from the restrictions of time and place. A wide range of technologies, access methods, and communication devices are available today. People often have several phone numbers and email addresses, switching among them according to the situation. Although we enjoy these tools every day,(More)
In this paper, we describe the development of an automatic elevator navigation component for a JAUS- compliant mobile robot designed for the Tsukuba Challenge 2011's “getting the elevator” rule, in which the mobile robot automatically boards an elevator when the elevator door is opened. The use of both a laser range scanner and an(More)
Accurate and stable localization is one of most important function for autonomous mobile robot. To achieve, accurate and stable localization, we employ additional laser range finder to estimate accurate local position by fusing SLAM technique. In this paper, in order to confirm validity of our proposed localization algorithm, we implement as JAUS compliant(More)
Low-temperature growth, as well as the transfer free growth on substrates, is the major concern of graphene research for its practical applications. Here we propose a simple method to achieve the transfer free graphene growth on SiO2 covered Si (SiO2/Si) substrate at 250 °C based on a solid-liquid-solid reaction. The key to this approach is the catalyst(More)
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