17 research outputs found

    Simulation and the Fourth Industrial Revolution

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    Advancements in systems simulation over the past decade have propelled simulationinto a new position as a decision-making tool in Industry 4.0 applications. This paperaddresses the specific benefits of simulation which can be utilized to enable greaterflexibility in decision making in the Industry 4.0 environment. It is stressed thatboth discrete event simulation (DES) and agent-based simulation (ABS) can be usedto represent complex interactions in a fully integrated set of virtual and physicalsystems

    ホッカイドウ アバシリシ ニ オケル オオアシトガリネズミ Sorex unguiculatus ノ キセイチュウソウ

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    北海道網走市の山林で捕獲したオオアシトガリネズミを対象に,駆虫を行う前段として寄生虫を採集,同定した。外部寄生虫,内部寄生虫の蠕虫類は,常法により採集,同定した。採集された外部寄生虫類は10種で,マダニ科は咬傷・炎症,コナダニ科はアレルギー疾患,ケモチダニ科は皮膚炎を宿主または飼育従事者に起こす可能性がある。種名の判明した寄生ダニの多くは,道内における様々な哺乳類への寄生が報告されていた。ケモチダニ科はトガリネズミ亜科に寄生するが,寄生された個体で皮膚の発赤が観察され,駆虫の必要性が強く示された。内部寄生虫の蠕虫類は野生由来の全例で観察され,線虫類が多くの部位,吸虫・条虫類が主に腸から採集された。We collected and identified the parasites in captive wild long-clawed shrews from forests in Abashiri as the first step of disinfection. The ecto- and endoparasites, especially helminthes, were collected and identified using conventional procedures. Ten species of external parasites were identified, including those of Ixodidae that causes bites and inflammation, Acaridae that causes allergic disease, and Myobiidae that causes dermatitis in their hosts and handlers. Most of the identified parasitic mites have been reported to infect various mammals in Hokkaido. Myobiidae were exclusively collected from the examined shrews, and thus, should be removed by anti-parasitic treatment because it causes skin rubor in their hosts. Internal parasitic helminths were detected in all the wild shrews. Nematodes were observed in various organs, whereas trematodes and cestodes were mainly found in the intestines

    ICT-Based Information Utilization for Production and Logistics Systems of Convenience Stores

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    Innovations in ICT over the last two decades have moved business intelligence toward more largescale business data utilization to efficiently and effectively improve business performance. This paper presents several typical information utilization examples, identifies appropriate business data utlization methods, and demonstrates how ICT techniques such as data mining and simulation technology are technically used as analytical implementation tools for production and logistics systems in convenience store supply chains. One example of data mining techniques is an application using demand order data of new products proposed to forecast demand trends of new short life-cycle products in this study. The other example of simulation technology is an application using the delivery data of convenience stores proposed to understand and validate the operations of a retail cross-docking center which is an actual supplier between multiple product enterprises and convenience stores

    Altered morphologies and physiological compensation in a rapidly expanding dwarf bamboo in alpine ecosystems

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    Dwarf bamboos are evergreen woody grasses that produce large clonal patches and dominate the understories of the montane to subalpine zones of northern Japan. Recently, dwarf bamboos have expanded their distribution to above the treeline and into alpine meadows. To clarify the mechanism of rapid invasion into the alpine, we compared the morphological performance, biomass allocation, photosynthetic activity, CO2 fixation ability, and sensitivity to temperature of dwarf bamboos in their native montane and expanding alpine sites in the Taisetsu Mountains. Alpine bamboo produced shorter but denser aboveground structures, where leaves were smaller and branching was more frequent. The total biomass of alpine bamboo was nearly half of that produced by montane bamboo. Montane bamboo produced more stems, while alpine bamboo invested more carbon in belowground structures. CO2 fixation per land area by alpine bamboo was 1.3 times higher than rates observed in montane bamboo. Optimal temperatures for photosynthesis were lower in alpine bamboo (15-20 degrees C) than in montane bamboo (20-25 degrees C), probably because of the rapid decrease in stomatal conductance at higher temperatures (>20 degrees C) observed in the alpine site. Overall, leaf transpiration rates were higher in alpine bamboo, but water-use efficiency was similar between sites. A high flexibility in both morphological and physiological characteristics enabled dwarf bamboos to expand into alpine environments in response to recent climate change
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