Search

Your search keyword '"Tanaka, Hitoshi"' showing total 2,164 results
Start Over Author "Tanaka, Hitoshi"
2,164 results on '"Tanaka, Hitoshi"'

77. Spit Morphology at an Inlet in Phu Quoc Island, Vietnam

Author

Duy, Dinh Van, primary, Ty, Tran Van, additional, Thanh, Tran Nhat, additional, Minh, Huynh Vuong Thu, additional, De, Cao Van, additional, Duong, Vu Hoang Thai, additional, Dan, Trinh Cong, additional, Viet, Nguyen Trung, additional, and Tanaka, Hitoshi, additional

Published
2023
Full Text
View/download PDF

80. Rapid detection and classification of bacterial colonies using a thin film transistor (TFT) image sensor and deep learning (Conference Presentation)

Author

Li, Yuzhu, primary, Liu, Tairan, additional, Koydemir, Hatice C., additional, Wang, Hongda, additional, O'Riordan, Keelan, additional, Bai, Bijie, additional, Haga, Yuta, additional, Kobashi, Junji, additional, Tanaka, Hitoshi, additional, Tamaru, Takaya, additional, Yamaguchi, Kazunori, additional, and Ozcan, Aydogan, additional

Published
2023
Full Text
View/download PDF

81. Successful prevention of stenosis after circumferential endoscopic resection of esophageal cancer

Author

Tanaka, Hitoshi, Kakushima, Naomi, Muroi, Koichi, Hirose, Takashi, Suzuki, Tomohiko, Suzuki, Takahiro, Hida, Emiko, Hirai, Keiko, Shibata, Hiroyuki, Ito, Nobuhito, Furune, Satoshi, Furukawa, Kazuhiro, Fujishiro, Mitsuhiro, Tanaka, Hitoshi, Kakushima, Naomi, Muroi, Koichi, Hirose, Takashi, Suzuki, Tomohiko, Suzuki, Takahiro, Hida, Emiko, Hirai, Keiko, Shibata, Hiroyuki, Ito, Nobuhito, Furune, Satoshi, Furukawa, Kazuhiro, and Fujishiro, Mitsuhiro

Abstract

Circumferential resection of a >5-cm longitudinal mucosal defect following esophageal endoscopic submucosal dissection (ESD) is a risk factor for refractory stenosis. Circumferential ESD was performed in 3 patients with 64, 69, and 70 mm longitudinal mucosal defects. A local steroid injection was used to treat the postoperative ulcer, followed by an oral steroid. In all three cases, the ulcer healed without the need for endoscopic dilation. A combination of local injection and oral steroids effectively prevented esophageal stenosis in patients with high-risk stenosis after ESD.

Published
2023

82. Overview of coordinated spherical tokamak research in Japan

Author

TAKASE, Yuichi, EJIRI, Akira, FUJITA, Takaaki, HANADA, Kazuaki, IDEI, Hiroshi, NAGATA, Masayoshi, ONCHI, Takumi, ONO, Yasushi, TANAKA, Hitoshi, TSUJII, Naoto, UCHIDA, M., YASUDA, K., KASAHARA, Hiroshi, MURAKAMI, Sadayoshi, TAKEIRI, Yasuhiko, TODO, Yasushi, TSUJI-IIO, Shunji, KAMADA, Yutaka, TAKASE, Yuichi, EJIRI, Akira, FUJITA, Takaaki, HANADA, Kazuaki, IDEI, Hiroshi, NAGATA, Masayoshi, ONCHI, Takumi, ONO, Yasushi, TANAKA, Hitoshi, TSUJII, Naoto, UCHIDA, M., YASUDA, K., KASAHARA, Hiroshi, MURAKAMI, Sadayoshi, TAKEIRI, Yasuhiko, TODO, Yasushi, TSUJI-IIO, Shunji, and KAMADA, Yutaka

Abstract

Spherical tokamak (ST) research in Japan has produced many innovative results: (i) plasma start-up to Ip > 70 kA was achieved by electron cyclotron wave (ECW) with N∥ = 0.75, while electron heating to Te > 500 eV was achieved with N∥ = 0.26 on QUEST. (ii) The radiofrequency (RF)-induced transport model was combined with the x-ray emission model, and extended magnetohydrodynamics equilibrium with kinetic electrons was developed to interpret fast-electron-dominated lower hybrid wave sustained plasmas on TST-2. (iii) Density as high as 30 times the cutoff density was achieved by electron Berstein wave current drive combined with electron beam injection on LATE. (iv) Multiple plasmoids formed by tearing instability in the elongated current sheet were observed, and flux closure and ion heating by plasmoid-mediated fast magnetic reconnection were observed on HIST. (v) Optimization of ECW-assisted inductive start-up with a vertical field with positive decay index was performed on TST-2. (vi) Stabilization of the vertical displacement event by a set of upper and lower helical field coils was demonstrated on TOKASTAR-2. (vii) A 6 h discharge was achieved by cool-down of the center stack cover on QUEST, where the plasma duration limit was consistent with the wall saturation time estimated by modeling. (viii) Extension of ion heating by plasma merging was achieved on TS-3U, TS-4U, UTST, MAST, and ST40., source:Y. Takase et al 2022 Nucl. Fusion 62 042011, source:https://doi.org/10.1088/1741-4326/ac29cf, identifier:0000-0002-4846-5267

Published
2023

87. Voltage Down-Converters

Author

Itoh, Kiyoo, Horiguchi, Masashi, Tanaka, Hitoshi, Chandrakasan, Anantha, editor, Itoh, Kiyoo, editor, Horiguchi, Masashi, editor, and Tanaka, Hitoshi, editor

Published
2007
Full Text
View/download PDF

89. High-Voltage Tolerant Circuits

Author

Itoh, Kiyoo, Horiguchi, Masashi, Tanaka, Hitoshi, Chandrakasan, Anantha, editor, Itoh, Kiyoo, editor, Horiguchi, Masashi, editor, and Tanaka, Hitoshi, editor

Published
2007
Full Text
View/download PDF

90. Reference Voltage Generators

Author

Itoh, Kiyoo, Horiguchi, Masashi, Tanaka, Hitoshi, Chandrakasan, Anantha, editor, Itoh, Kiyoo, editor, Horiguchi, Masashi, editor, and Tanaka, Hitoshi, editor

Published
2007
Full Text
View/download PDF

92. An Introduction to LSI Design

Author

Itoh, Kiyoo, Horiguchi, Masashi, Tanaka, Hitoshi, Chandrakasan, Anantha, editor, Itoh, Kiyoo, editor, Horiguchi, Masashi, editor, and Tanaka, Hitoshi, editor

Published
2007
Full Text
View/download PDF

97. Littoral Drift Impoundment at a Sandbar Breakwater: Two Case Studies along the Bight of Benin Coast (Gulf of Guinea, West Africa).

Author

Lawson, Stephan K., Udo, Keiko, Tanaka, Hitoshi, and Bamunawala, Janaka

Subjects
LITTORAL drift, SEDIMENTATION & deposition, BREAKWATERS, SAND bars, COASTAL changes, SEDIMENT transport
Abstract

This study assessed the deposition of sediment and shoreline evolution at two newly constructed port facilities in the Bight of Benin, West Africa. Based on the Building with Nature approach, the concept of a sandbar breakwater was implemented at the study sites. The coastal system of the bight is characterized by a sand barrier-lagoon system and a uniform prevailing wave climate, making it a favorable location for this innovative port solution. The case studies were undertaken at the Port of Lomé, Togo, and the Lekki Deep Sea Port (Dangote Sea Port), Nigeria, using remotely sensed shoreline positions and the one-line coastline change model for different periods. After construction of the breakwater, we estimated that the updrift coastline at the two locations accreted in the range of 10–23 m/year and the rates of sediment deposition were estimated to be in the magnitude of 1.0–7.0 × 105 m3/year. The comparative study conducted also showed that these rates could further reach a magnitude of 106 m3/year at other sediment-accreting landforms within the bight. We found that these large magnitudes of longshore sediment transport generated from very oblique incident waves (10°–20°) and sediment input from rivers (in orders of 106 m3/year) have enabled the realization of expected morphodynamic changes on the updrift shoreline of the ports. From these results, downdrift morphological changes should not be underestimated due to potential imbalances induced in the sedimentary budget along the coastline. Future developmental plans within the bight should also continuously aim to adopt nature-based solutions to protect the ecosystem while mitigating unforeseen implications. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results