1,789,006 research outputs found

    Challenges of Heritage Conservation on a High-Density Island Port Hamlet Mitarai town, Hiroshima, Japan

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    Seto Inland Sea has been functioning maritime transportation and fishery since ancient age. The urban history of Mitarai town has well reflect development process of regional maritime transportation and entertainment sectors for transit passengers. The town is well remained and representing glory of regional maritime legacy and architectural heritages which known as the highest population density of the region. Since the diffusion of new transportation modes, the town faces serious social shrinkage which significantly appeared social ageing and depopulation. Recent hope in Mitarai town where included nation’s 36th preservation district in 1994, however, community faces significant social changes which endangered to sustain substance of local living culture. A number of issues are yet to be addressed to secure residents’ contemporary living needs, which includes: maintaining sustainable tourism demands; prevention measures for natural disasters; appropriate community engagements; and encourage local entrepreneurs. In this paper, author firstly collect and analyse the periodical development discourse on the Seto Inland Sea region, particularly historic transformation of the Mitarai town and the region. Secondly, to analyses development / preservation discourses in Mitarai town

    Data for: Effects of Zr and Si addition on high-temperature mechanical properties and microstructure in Ti-10Al-2Nb-based alloys

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    Microstructure, compression strength, creep life and strain rate of Ti alloy

    Kusari

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    Kusari

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    Nonexistence of multi-dimensional solitary waves for the Euler-Poisson system

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    We study the nonexistence of multi-dimensional solitary waves for the Euler-Poisson system governing ion dynamics. It is well-known that the one-dimensional Euler-Poisson system has solitary waves that travel faster than the ion-sound speed. In contrast, we show that the two-dimensional and three-dimensional models do not admit nontrivial irrotational spatially localized traveling waves in the L-1 space for any traveling velocity and for general pressure laws. Our results provide theoretical evidence for the stability of line solitary waves in multi-dimensional Euler-Poisson flows. We derive some Pohozaev type identities associated with the energy and density integrals. This approach is extended to prove the nonexistence of irrotational multi-dimensional solitary waves for the two-species Euler-Poisson system for ions and electrons.

    The departure process from a GI/G/1 queue and its applications to the analysis of tandem queues

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    "September 1990."Includes bibliographical references (p. 27-28).Research supported by the Leaders for Manufacturing Program at MIT and the Draper Laboratory.Dimitris J. Bertsimas, Daisuke Nakazato

    The general distributional Little's law and its applications

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    "March 1991."Includes bibliographical references (p. 31-32).Research supported by the Leaders for Manufacturing Program at MIT and Draper Laboratory.Dimitris Bertsimas, Daisuke Nakazato

    On the characteristic equation of general queueing systems

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    "September 1990."Includes bibliographical references (p. 14-15).Research supported by grants from the Leaders for Manufacturing Program at MIT and from Draper Laboratory.Dimitris J. Bertsimas, Daisuke Nakazato
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