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Mechatronics Education Using Robot Competition in Okayama University of Science
T. Akagi,S. Fujimoto,H. Kuno,K. Araki,S. Yamada,S. Dohta 한국공학교육학회 2010 공학교육연구 Vol.13 No.2
Electronics machines make daily human life more convenient and comfortable and try to ease burdens. When designing and manufacturing such mechatronic systems, the engineers need to have a wide range of knowledge. The purpose of our education is for students to learn to use mechatronic techniques. To realize our goal, we regard “an interest in creation” of our student as an important educational method. In this paper, we propose and try an educational method for mechatronics creation using “their interest”. The method is to hold robot competitions between 1st and 3rd year students as a regular curriculum. In order to confirm the progress of our students in our engineering course, in the last year, some students entered the Rescue Robot Contest held in Kobe Japan. As a result, our student team got second place, a great honor considering it was our first attempt. We confirm that the robot competition is a useful method to make students study by themselves.
Fabrication of Artificial Crystal Architectures by Micro-manipulation of Spherical Particles
Takagi Kenta,Kawasaki Akira,Watanabe Ryuzo 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
We newly designed and manufactured a new arranging system for a three-dimensional artificial crystal of monosized micro particles. In this system, a robotic micro-manipulator accurately locates the spherical particle onto the lattice point, and subsequently fiber lasers micro-weld the contact points between the neighboring particles. Actually, one- and two-dimensional arrays were constructed using monosized tin particles with the diameter of 400 m. Moreover, due to optimization of the process parameters, we successfully constructed the artificial crystals of simple cubic and diamond structures. In particular, the diamond structure which can represent a large photonic band gap is expected to progress toward a practical photonic crystal device.
THE RIGIDITY FOR REAL HYPERSURFACES IN A COMPLEX PROJECTIVE SPACE
TAKAGI, RYOICHI,KIM, IN-BAE,KIM, BYUNG HAK 경북대학교 위상수학 기하학연구센터 1999 硏究論文集 Vol.8 No.-
We prove a rigidity theorem for real hypersurfaces in a complex projective space of complex dimension n≥4. As an application of this rigidity theorem, we classify all intrinsically homogeneous real hypersurfaces in the complex projective space.
Towards the Distributed Satellite Data Centers
Takagi, Mikio 대한원격탐사학회 1997 International Symposium on Remote Sensing Vol.13 No.1
To promote the academic researches on the earth environment utilizing satellite data, research infrastructure such as satellite data reception, processing, distribution and archive systems should be fully provided. To enhance the infrastructure, $quot;Satellite Data Center Based on Network$quot; was proposed. This concept has three principles; (1) To realize necessary functions by organizing experts distributed all over Japan and connecting them by network, (2) To realize $quot;Satellite Data Center Based on Network $quot; for GMS and NOAA Satellites, which are widely used for re search, and (3) Satellite data set oriented to specific research area should be generated by researchers having definite research purposes in cooperation with researchers in the fields of sensor algorithms and huge volume data processing. As an experimental step to realize this concept, $quot;Construction of Distributed Global Environmental Database Based on Net work$quot; project is just starting.
ESSENTIAL NORMS AND STABILITY CONSTANTS OF WEIGHTED COMPOSITION OPERATORS ON C(X)
Takagi, Hiroyuki,Miura, Takeshi,Takahasi, Sin-Ei Korean Mathematical Society 2003 대한수학회보 Vol.40 No.4
For a weighted composition operator $uC_{\varphi}$ on C(X), we determine its essential norm and the constant for its Hyers-Ulam stability, in terms of the set $\varphi(\{x\;\in\;X\;:\;$\mid$u(x)$\mid$\;\geq\;r\})$ (r > 0).
Takagi, Ken-ichi 대한금속재료학회 2003 METALS AND MATERIALS International Vol.9 No.5
This paper focused on the effects of Mn addition from 0 to 10 wt.% on the mechanical properties and microstructure of V added Mo₂NiB₂ based model cermets. Transverse rupture strength of the cermets increased with increasing Mn content and showed a maximum value of 3.5 GPa at 2.5 wt.%Mn, and then decreased with further increasing Mn content. Hardness increased monotonically from 86.4 R_(A) to 88.0 R_(A) up to 10 wt.%Mn. The high TRS at 2.5 wt.%Mn was attributed to size refinement and homogeneous distribution of Mo₂NiB₂ complex boride resulting from Mn addition.