2020-2022 YAMAGATA UNIVERSITY Research Seeds Collection
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49Research for growing dendrite.IllustrationHigh-efficiency: wide-band gapSimulation of evacuation inriver flooding.Network structure of friendship relation in SNS for college students. Our laboratory is researching on materials, especially semiconductors, that contribute to green electronics. What is green electronics? We will contribute to the development of the electronics industry by utilizing the research results.Yamagata UniversityGraduate School of Science and Engineering Research Interest :Electrical and electronic materialsYamagata University Graduate School of Science and Engineering E-mail :narita@yz.yamagata-u.ac.jpResearch InterestTel :+81-238-26-3304Electrical and electronic materialsFax:+81-238-26-3304E-mail ・ narita@yz.yamagata-u.ac.jpTel ・ +81-238-26-3304Fax ・ +81-238-26-3304Panasonic Technical Journal 61, 67 (2015).Content:ContentWe sometimes encounter the phenomena in the world that if a huge  We sometimes encounter the phenomena in the world that mount of tiny and poor particles gathers, an unexpected shape if a huge mount of tiny and poor particles gathers, an emerge or an excellent system is constructed.unexpected shape emerge or an excellent system is In recent years, they are applied to optimization problem, which is constructed.important for engineering, and testing for robustness of the system  In recent years, they are applied to optimization problem, from the relationship among people or objects.which is important for engineering, and testing for robustness In our laboratory, we research the mechanisms of several phenomena of the system from the relationship among people or objects.and analysis of the structure of networks using the concepts of  In our laboratory, we research the mechanisms of several complex systems. Moreover for the application of optimization phenomena and analysis of the structure of networks using problem, we work on problems of evacuation in a disaster and the concepts of complex systems. Moreover for the delivery and so on.application of optimization problem, we work on problems of In network analysis, we are collaborating other field researchers like evacuation in a disaster and delivery and so on.sociologists or economists in the spirit of no constraint of  In network analysis, we are collaborating other field engineering. researchers like sociologists or economists in the spirit of no constraint of engineering. Appealing point:AThe unheard-of interdisciplinary research is my principle. Special objectivesEspecially, my strong point is that I can analyze and simulate several kinds of phenomena. The unheard-of interdisciplinary research is my principle. Especially, my strong point is that I can analyze and simulate Yamagata University Graduate School of Science and Engineering several kinds of phenomena.Research Interest:Statistical Physics, Network ScienceYamagata University Graduate School of Science and Engineering E-mail :tanaka@yamagata-u.ac.jpResearch InterestTel :+81-238-26-3337Statistical Physics, Network ScienceFax :+81-238-26-3337E-mail ・ tanaka@yamagata-u.ac.jpTel ・ +81-238-26-3337HP : http://etas.yz.yamagata-u.ac.jp/Fax ・ +81-238-26-3337HP・http://etas.yz.yamagata-u.ac.jp/Content:ContentOur laboratory is researching on materials, especially semiconductors, that contribute to green electronics. What is green electronics?[Electronics field to consume finite energy without waste (high [Electronics field to consume finite energy without waste efficiency) or operate with low power (energy saving)](high efficiency) or operate with low power (energy saving)]At Narita Lab., we are aiming to develop a device that is kind to the global environment in terms of materials, with the keywords  At Narita Lab., we are aiming to develop a device that is "crystal growth" and "surface science". As specific materials, we kind to the global environment in terms of materials, with the keywords “crystal growth” and “surface science”. As are studying silicon carbide (SiC) and gallium nitride (GaN), which specific materials, we are studying silicon carbide (SiC) and have a wider bandgap than Si from the viewpoint of high efficiency, gallium nitride (GaN), which have a wider bandgap than Si and graphene, which has a higher mobility than Si, from the from the viewpoint of high efficiency, and graphene, which viewpoint of energy saving. We are also conducting research on has a higher mobility than Si, from the viewpoint of energy hydrogen adsorption, desorption, and extraction reactions on the Si saving. We are also conducting research on hydrogen surface, which is a key in Si solar cell fabrication.adsorption, desorption, and extraction reactions on the Si surface, which is a key in Si solar cell fabrication.Appealing point:Special objectivesby utilizing the research results.We will contribute to the development of the electronics industry Green electronics –from Crystal growth to devices-Analysis of Structures in Natural and Social WorldOur target!Associate Professor Atsushi Tanaka Associate ProfessorYuzuru NaritaAnalysis of Structures in Natural and Social WorldGreen electronics – from Crystal growth to devices –semiconductors of SiC,GaNEnergy saving: GrapheneAssociate Professor Atsushi TanakaAssociate Professor Yuzuru Narita

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