Zobrazeno 1 - 10 of 21 pro vyhledávání: '"Takehiko Takayama"'
1
Acquisition of Ocean Wave Surface by X-band Ship Radar and Very-short-term Wave Surface Prediction
Autor: Tsugukiyo Hirayama, Yoshiaki Hirakawa, Seishi Sasaki, Akihiko Matsuda, Hironori Susaki, Takehiko Takayama
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 22:235-242
The fact that the crest-line-like lines can be seen in the PPI image of ship radars was known from relatively old days. Many trials obtaining wave information as wave directional spectrum, significant wave height and wave mean directions were also do
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::224e7665821eaa812e5035cbfadef6b8
https://doi.org/10.2534/jjasnaoe.22.235
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2
Sea trial of prototype Vertical Weight Stabilizer (VWS) anti-rolling system for small ships
Autor: Yoshiaki Hirakawa, Naoki Okada, Akiko Yamane, Tsugukiyo Hirayama, Takehiko Takayama, Kouji kakizoe, Shigeru Funamizu
Publikováno v: Journal of Marine Science and Technology. 19:292-301
Anti-rolling is an important technique for safety and efficient ship operation. In the era of sailing ships, rolling motions were not so severe compared to those of modern ships running by prime mover without sails, because the sail itself had a damp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff748778d2f92108a3824d9569e2c07c
https://doi.org/10.1007/s00773-013-0248-8
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3
Development of Mini-Buoy for short term measurement of ocean wave
Autor: Takehiko Takayama, H. Susaki, Yoshiaki Hirakawa, Tsugukiyo Hirayama
Publikováno v: OCEANS 2016 MTS/IEEE Monterey.
The authors have developed a small wave buoy as “Ultra-Small-Directional-Wave-Buoy” from 1997. In recent years, The demand of short term wave measurement such as verification of wave radar system and speed trials of new ships is increasing, but g
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5dfe2758d0ce096c6b6a38ebfd32fdf
https://doi.org/10.1109/oceans.2016.7761337
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4
Basic Study on a Next-Generation Type Airship with High Air-Worthiness Quality
Autor: Yoshiaki Hirakawa, Takehiko Takayama, Tsugukiyo Hirayama, Hisayoshi Suefuku
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 13:27-39
In this paper, we have an aim developing the next-generation-type airship for resolving airworthiness problems especially for mooring condition. For this purpose, we propose the TORUS-TYPE AIRSHIP. The torus-type airship will have the advanced charac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::775e504149c4cd53262c781262bc66a3
https://doi.org/10.2534/jjasnaoe.13.27
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5
Basic Study of Enhanced Weight Stabilizer (EWS)
Autor: Yoshiaki Hirakawa, Tsugukiyo Hirayama, Andre Mitsuo Kogishi, Takehiko Takayama
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 13:75-85
The present paper analyzes the components of the moment and proposes an improvement of the Vertical Weight Stabilizer (VWS) invented by Hirayama 1), confirmed by Hirakawa et.al 2), Kakizoe et.al 3) and Funamizu 4). This improvement consists in modify
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c49a6eb267c1533b255b947373df8fc
https://doi.org/10.2534/jjasnaoe.13.75
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6
Alendronate improves QOL of postmenopausal women with osteoporosis
Autor: Ryoichi Takayanagi, Hideyuki Ikematsu, Suminori Kono, Hisaya Kawate, Kazumi Higuchi, Takehiko Takayama, Keizo Ohnaka, Hisashi Matsuo, Masahiro Adachi
Publikováno v: Clinical Interventions in Aging
Hisaya Kawate1, Keizo Ohnaka2, Masahiro Adachi1, Suminori Kono3, Hideyuki Ikematsu4, Hisashi Matsuo5, Kazumi Higuchi6, Takehiko Takayama7, Ryoichi Takayanagi11Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyus
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6de933c19a073ea6bf146b5d9bfcf940
http://europepmc.org/articles/PMC2861847
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7
On the development and the validation experiment of Vertical Weight Stabilizer for actual ship
Autor: Kouji kakizoe, Takehiko Takayama, Akiko Yamane, Naoki Okada, Tsugukiyo Hirayama, Yoshiaki Hirakawa
Publikováno v: Journal of the Japan Society of Naval Architects and Ocean Engineers. 12:107-114
This paper proposes "Vertical Weight Stabilizer (VWS)" which is a new type of stabilizer. VWS is composed of a weight which can be shifted vertically by a servo motor. The weight gives to the ship two kinds of effects. The first one is an anti rollin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f621ff2b217d9dedf10086a3b99d6b3d
https://doi.org/10.2534/jjasnaoe.12.107
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10
Motion compensator for acoustic device mounted on Autonomous Surface Vehicle
Autor: Yoshiaki Hirakawa, Takehiko Takayama, T. Yoda, Tadahiro Hyakudome, Takeshi Nakatani
Publikováno v: OCEANS 2015 - MTS/IEEE Washington.
In recent days, the simultaneous operation of several AUVs is desired to realize widespread exploration in a navigation. As a method to realize the simultaneous operation, introduction the repeater vehicle called ASV (Autonomous Surface Vehicle) is p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48b54207046c844bfe86f7dc7f280a83
https://doi.org/10.23919/oceans.2015.7401884
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