50 research outputs found

    Tsunami run-up heights of the 2003 Tokachi-oki earthquake

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    Tsunami height survey was conducted immediately after the 2003 Tokachi-oki earthquake. Results of the survey show that the largest tsunami height was 4 m to the east of Cape Erimo, around Bansei-onsen, and locally at Mabiro. The results also show that the tsunami height distribution of the 2003 Tokachi-oki earthquake is clearly different from that of the 1952 Tokachi-oki earthquake, suggesting the different source areas of the 1952 and 2003 Tokachioki earthquakes. Numerical simulation of tsunami is carried out using the slip distribution estimated by Yamanaka and Kikuchi (2003). The overall pattern of the observed tsunami height distribution along the coast is explained by the computed ones although the observed tsunami heights are slightly smaller. Large later phase observed at the tide gauge in Urakawa is the edge wave propagating from Cape Erimo along the west coast of the Hidaka area.The 2003 Tokachi-oki earthquak

    NeuralNetworks:An Attempt to PredictDailySolarGeneratedPower

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    It is a known fact that Japan relies heavily on foreign sources to meet its energy needs. Japan's energy supply has been stabilized by increasing the use of nuclear power, natural gas, and new energy sources, and by introducing conservation measures. Japan is one of the world leaders in solar power generation. This study attempts to build a neural network to predict the solar electric power generated from the college's 10kW solar power generation system.本研究は,ニューラルネットワークを用いて日々の太陽光発電出力の予測をしようとする試みである.十二ヶ月の日々の太陽光発電出力量のデータを用いてニューラルネットワークのモデルを構築した.最適なモデルを得るため,十分な学習を行った.しかしながら,今回のニューラルネットワークモデルによる予測では満足のいく成績を得ることが出来なかった。今後,これらの改善と実験データやパラメーターを増やすことを検討する必要があると考えられた

    Two Cases of Diffuse Duodenitis Associated with Ulcerative Colitis

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    The upper gastrointestinal tract is not generally considered a target organ in ulcerative colitis (UC). However, several cases showing upper gastrointestinal involvement in UC have been reported. In this report, we present 2 rare cases of diffuse duodenitis accompanying pancolonic UC. Case patient 1 was a 44-year-old man who developed diffuse duodenitis shortly after colectomy and was successfully treated with mesalazine. Case patient 2 was a 25-year-old woman who developed diffuse duodenitis under a steroid-free condition and was successfully treated with prednisolone. The 2 patients had Helicobacter pylori-negative duodenitis that resembled colonic lesions of UC in both the endoscopic and histological findings. No evidence of Crohn’s disease was found in these cases. We diagnosed both cases as typical UC-associated diffuse duodenitis. The occurrence of gastrointestinal involvement in UC has been attracting attention because such lesions could potentially open a new window for studying the etiology and pathogenesis of UC. Further studies involving a large number of patients are needed to clarify whether the upper gastrointestinal tract is a target organ in UC
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