73 resultados para Hiroshima


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Like many major urban developments designed by modernist architects. Kenzo Tange's Hiroshima Peace Memorial Park is considered by some to be founded upon tabula rasa- a blank site and/or architectural approach unconstrained by historic and aesthetic precedents. Tabula rasa is associated with a tendency to 'forget' or repress the past in order to opportunistically move on with the future. Constructed near 'ground zero' - on the site of just part of the established urban environment obliterated by the atomic bombing of Hiroshima on 6 August 1945- the tabula rasa here, however, is not achieved simply due to a conscious or critical urban design decision to move away from past urban forms and practices but through an unforseen trauma. This paper questions the application of an unqualified label of tabula rasa to Tange's Hiroshima Peace Memorial Park. Focusing on Tange's writing about the Peace Park - a 1954 article entitled "Hiroshima Plan 1946-1953" in particular - and reflecting on the repeated architectural returns of Kenzo Tange and Associates to the site, this paper raises Freud's "Mystic Writing Pad" as an alternative model. It argues for a more complex consideration of the memory-work of Tange's written practice and the light it may bring to a reconsideration of this foundational architectural project within his oeuvre.

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Mode of access: Internet.

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We have estimated of the maximum radiation dose received from consuming an oyster at Hiroshima following the A-bomb detonation in 1945

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Having flexible notions of the unit (e.g., 26 ones can be thought of as 2.6 tens, 1 ten 16 ones, 260 tenths, etc.) should be a major focus of elementary mathematics education. However, often these powerful notions are relegated to computations where the major emphasis is on "getting the right answer" thus procedural knowledge rather than conceptual knowledge becomes the primary focus. This paper reports on 22 high-performing students' reunitising processes ascertained from individual interviews on tasks requiring unitising, reunitising and regrouping; errors were categorised to depict particular thinking strategies. The results show that, even for high-performing students, regrouping is a cognitively complex task. This paper analyses this complexity and draws inferences for teaching.

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A typical low power IPT system employs an H-Bridge converter with a simple control strategy to generate a high frequency current from DC power supply. This paper proposes a cascaded multilevel converter for bidirectional IPT (BIPT) systems, which is suitable for low to medium power applications as well as for situations such as PV cells where several individual DC sources are to be utilized. A novel modulation strategy is proposed for the multilevel converter with the aim of minimizing switching losses. Series - Series (SS) compensation circuit is adopted for the IPT system and a mathematical model is presented to minimize the coil losses of the system under varying output power. Theoretical results presented in comparison to the simulations to demonstrate the applicability of the proposed concept and the validity of the developed model. The experimental results show the feasibility of the proposed phase shift modulation.