Accelerator mass spectrometry (AMS) 14 C dating and analyses of the stable isotope ratio of organic carbon (δ 13 C org ) were carried out on two piston cores obtained from the continental slope and the Okinawa Trough in the East China Sea (ECS). These cores covered the last ca. 15 14 C kyr BP (17 to 18 cal kyr BP). Mass and organic carbon (org. C) accumulation rates decreased gradually after the last deglaciation period. On the other hand, δ 13 C org showed distinct depletion from ca. 14 to 12 14 C kyr BP (17.5 to 13.2 cal kyr BP). The depletion relates to the large supply of terrestrial org. C from the ECS shelf triggered by the sea's intrusion onto the shelf area because of the rise in sea level.

Deglaciation

China sea

Trough (economics)

10.1029/2000gl011690

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1H-11 外国の天文台と連携した天文を題材とする総合的な学習の研究 : ハワイIronwood天文台を利用した教育実践を通して(環境・STS・総合的学習,一般研究,日本理科教育学会第55回全国大会)

日本理科教育学会全国大会要項 (2005)

Eiji Matsumoto Shinji Matsumoto

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181. Geochemical studies on the sedimentary process in the Lake Hamana, central Japan

日本地質学会学術大会講演要旨 (1995)

K. Oguri Eiji Matsumoto Akinori Hino Hisashi Kurokura Ken Okamoto

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A CASE OF HEMORRHAGIC GASTRIC VASCULAR ECTASIA TO BE ACCOMPANIED BY IDIOPATHIC PULMONARY FIBROSIS: SUCCESSFULLY TREATED BY ENDOSCOPIC BAND LIGATION

Minoru Ayada Tatsunori Nakano Naoki Hotta Akihiko Okumura Tetsuya Ishikawa

Ectasia

10.11280/gee1973b.48.2626

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Optimal design of electromagnetic acoustic transducer

Eiji Matsumoto Shinji Kitamura Jun Abe

This paper considers design of Electro-Magnetic Acoustic Transducer based on numerical simulation. The EMAT consists of an exiting coil and two permanent magnets, which transmits the ultrasonic wave by the Lorentz force between the eddy current and the static magnetic field by the magnets. From the experimental result on self-prepared EMATs, the intensity and the directivity of the transmitted wave depend on the widths of the coil and the magnets. By means of EEM analysis we attempt to determine the optimal values of the above widths such that both the intensity and the directivity achieve the maximum or allowable performance.

Electromagnetic acoustic transducer

Directivity

Lorentz force

10.1109/icelmach.2010.5607846

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Making of Sake using puffed low polished rice.

JOURNAL OF THE SOCIETY OF BREWING JAPAN (1987)

Kojiro TAKAHASHI Eiji Matsumoto Katsuhiko Tani Kunio Sakurai Hidekazu SHIBATA

気流式瞬間連続膨化装置により膨化 (パフ化) した85%精白米の醸造適性について, 75%精白米 (未処理) を対照として比較した。1.消化性もよく, 膠におけむ異臭生成の少ないパフ化の条件は, 3.0kg/cm2,200℃, 7sec.であった。2.パフ白米を膠掛米として, 総米100kgの試験醸造を3年間実施したところ, 製造歩合は対照とほとんど差はなかった。3.製成酒の主な成分では, アミノ酸度;0.46-0.80 (対照;1.60-2.07) 着色度;0.026-0.029 (対照;0.025-0.028), Fe含量;0.08-0.13ppm (対照;0.05-0.10ppm) で, アミノ酸度が極端に少なく, 着色度はほぼ同じであった。4.製成酒の酒質は, 淡麗で味が軽い特徴がみられたが, 弱い異臭が指摘された。5.異臭は, 活性炭素繊維FW-500処理でかすかに感じる程度まで低減することができた。

10.6013/jbrewsocjapan1915.82.831

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Late Quaternary Paleo-environments of Archaeological Sites in Japan and East Asia. Glacio-hydro-isostasy and Underwater Jomon Sites along the West Coast of Kyushu, Japan.

The Quaternary Research (Daiyonki-Kenkyu) (1994)

Masao Nakada Yasuo Maeda Shinji Nagaoka Yūsuke Yokoyama Jun’ichi Okuno

西九州には縄文早期の鷹島遺跡や数多くの縄文前期から中期の水中遺跡が存在する. これらの遺跡が水没したおもな原因は, 最終氷期の大陸氷床の融解に伴うハイドロアイソスタシーに帰すことができる. 本論文では, このことを定量的に示した. この研究をさらに進めることは, 両極の氷床モデルや地殻とマントルのレオロジーを推定するのに非常に有益である.

Isostasy

10.4116/jaqua.33.361

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災害に備える「四国広域道路啓開計画」の策定について~南海トラフ地震の大規模災害に備えて~

Eiji Matsumoto

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