53 research outputs found

    Digital signal processor and energy control

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    Power supply was consisted of several analog parts and various circuits had been conventionally researched before. While, digitalization research of power supply is proceeding, but it has some problem of performance and cost to create digital control power supply. Now the revolution is occurred at Energy Control area after appearing DSP (Digital Signal Processor). Until now, a power supply was one of component of system. However, the digital control power supply using DSP can realize more intellectual system and power supply is going to change from one of component to a part of system. This paper deals with the evolution of DSP and how to make impact to energy control system. Also, we will consider future application for energy control systems.INTELEC 2009 - 2009 International Telecommunications Energy Conference : Incheon, South Korea, 2009.10.18-2009.10.2

    Education for Disaster Prevention in England : Analysis of Secondary Geography Textbooks

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    The purpose of this study is to clarify the aims, contents and activities of education for disaster prevention on geographical education in England, by analysis of secondary textbooks. Thereby, we want to contribute the improvement of Japanese geographical education. As a result, we clarified the following: 1) when students study a natural disaster in UK, they learn a plurality of cases including domestic and foreign regions, 2) all textbooks contain activities that students can form attitudes and decide what to do for disaster prevention. On the basis of these results, we suggest improvements of education for disaster prevention. The first is to develop a clear understanding of a natural disaster with multi-area including Japan. The second is to place contents and activities for forming a value relevant to awareness of disaster prevention into Japanese geography textbook. The third is to set an activity to learn practical strategies for disaster prevention in the real world

    Geographical Contents in Primary School : An Analysis of the English Geography Textbook “Collins Primary Geography”

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    In this study, we have analyzed the English geography textbook “Collins Primary Geography”, in order to clarify the characteristics of geographical contents in primary school. Results of this study are as follows: age (grade)-appropriate teaching through different process of leaning (awareness, understanding, cognition and value judgement) and physical, human, environmental geography and topography as a content. However, there are no contents across physical and human geography, one of the features of geography, in the textbook.本稿は,2016年度前期開講の地理認識内容学特講(由井担当)の一部をもとに,加筆・修正を加えたものである

    Single-Domain Ferroelectric Water and its Concerted Diffusion in Nanotubes

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    Digital signal processor and energy control

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