Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Yasuo Furushima"'
Publikováno v:
Marine Technology Society Journal. 56:74-89
Surveys and monitoring are essential to study the biology and ecology of coral reefs in order to understand the reasons behind reef demise and recovery. However, mesophotic coral ecosystems (MCEs) remain largely unknown compared to their shallow coun
Autor:
Tatsuo Fukuhara, Sotaro Takashima, Koichi Goto, Kondo Shunsuke, Hiroyuki Yamamoto, Yasuo Furushima
Publikováno v:
BUTSURI-TANSA(Geophysical Exploration). 73:64-73
Autor:
Yoshinori Kuranaga, Takashi Sakamaki, Marc Humblet, Toshihiro Maki, Yasuo Furushima, Kotohiro Masuda, Yukiyasu Noguchi
Publikováno v:
Journal of Robotics and Mechatronics. 30:971-979
This paper proposes a new method for cruising-type autonomous underwater vehicles (AUVs) to track rough seafloors at low altitudes while also maintaining a high surge velocity. Low altitudes are required for visual observation of the seafloor. The op
Autor:
Marc Humblet, Yukiyasu Noguchi, Toshihiro Maki, Yasuo Furushima, Shohei Ito, Takashi Sakamaki
Publikováno v:
Global Oceans 2020: Singapore – U.S. Gulf Coast.
Autonomous underwater vehicles (AUVs) play important roles in seafloor observation because of their ability to acquire detailed information on the marine environment. However, the utilization of AUVs is limited by their high construction and operatin
Autor:
Tatsuo Fukuhara, Syunsuke Kondo, Hironori Higashi, Naoki Furuichi, Tomohiko Fukushima, Hiroyuki Yamamoto, Sotarou Takashima, Yasuo Furushima, Takeya Matsuda
Publikováno v:
OCEANS 2019 MTS/IEEE SEATTLE.
In this study, direct continuous measurements of deep-sea turbulent flows near the seafloor were made in the Izena Cauldron hydrothermal fields, Okinawa Trough, Japan, to understand the dynamics of the bottom mixed layer. The objectives of this study
Autor:
Tatsuo Fukuhara, Hironori Higashi, Hiroyuki Yamamoto, Tomohiko Fukushima, Naoki Furuichi, Yasuo Furushima, Takeya Matsuda
Publikováno v:
OCEANS 2018 MTS/IEEE Charleston.
In this study, time series measurements of turbulent flows near the sea floor were taken at hydrothermal fields in the Okinawa Trough. The purpose of this study was to understand the dynamics of the bottom mixed layer (BML), reveal fluctuations in th
Autor:
Tetsuya Miwa, Hiroyuki Yamamoto, Katsuyoshi Kawaguchi, Yasuo Furushima, Jin-Kyu Choi, Tatsuhiro Fukuba
Publikováno v:
2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).
Environmental impact assessment on the site of ocean resource exploration and exploitation is required to be conducted under regulatory guidelines to protect and preserve ecosystems and biodiversity. Thus, observatories that can achieve long-term mon
Autor:
Kondo Shunsuke, Tetsuya Miwa, Hiroyuki Yamamoto, Tatsuo Fukuhara, Tomohiko Fukushima, Yasuo Furushima
Publikováno v:
2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).
In deep-sea mining, leakage of lifting water might have an adverse effect on phytoplankton. Therefore, understanding the fluctuation of phytoplankton is important for environmental impact assessment in deep-sea mining. In this study, the maximum fluo
Autor:
Takafumi Kasaya, Kazumasa Oguri, Katsunori Fujikura, Yasuo Furushima, Takashi Toyofuku, Masahide Wakita, Hiroshi Kitazato, Shuichi Watanabe
Publikováno v:
Journal of Oceanography. 72:151-166
Long-term monitoring of the seafloor environment off Otsuchi Bay, northeastern Japan, was carried out to investigate environmental changes of the deep-sea floor after the 2011 off the Pacific coast of the Tohoku Earthquake. We deployed two deep-sea s
Autor:
Tsukane Yamauchi, Katsunori Fujikura, Yasunori Hanafusa, Hideaki Saito, Takahiro Arai, Akira Sonoda, Yasuo Furushima, Maruyama Tadashi, Katsuhiko Tanaka, Takefumi Kishira, Hiroyuki Yamamoto
Publikováno v:
JAMSTEC Report of Research and Development. 18:81-88