Search Results - "Tsujii, Koki"

Fin whale (Balaenoptera physalus) song pattern in the southern Chukchi Sea by Furumaki, Shiho, Tsujii, Koki, Mitani, Yoko

“…The number of migrating fin whales ( Balaenoptera physalus ) appears to be increasing in the Pacific Arctic after changes in the marine ecosystem and…”
Get full text

Tidal effects on periodical variations in the occurrence of singing humpback whales in coastal waters of Chichijima Island, Ogasawara, Japan by Tsujii, Koki, Akamatsu, Tomonari, Okamoto, Ryosuke, Mori, Kyoichi, Mitani, Yoko

“…Marine organisms inhabiting coastal waters are known to be driven by periodic cycles such as diel, tidal, and seasonal changes. Humpback whales ( Megaptera…”
Get full text

Author Correction: Tidal effects on periodical variations in the occurrence of singing humpback whales in coastal waters of Chichijima Island, Ogasawara, Japan by Tsujii, Koki, Akamatsu, Tomonari, Okamoto, Ryosuke, Mori, Kyoichi, Mitani, Yoko

Get full text

Change in singing behavior of humpback whales caused by shipping noise by Tsujii, Koki, Akamatsu, Tomonari, Okamoto, Ryosuke, Mori, Kyoichi, Mitani, Yoko, Umeda, Naoya

“…Reactions of singing behavior of individual humpback whales (Megaptera novaeangliae) to a specific shipping noise were examined. Two autonomous recorders…”
Get full text

Interchanges and movements of humpback whales in Japanese waters: Okinawa, Ogasawara, Amami, and Hokkaido, using an automated matching system by Kobayashi, Nozomi, Kondo, Satomi, Tsujii, Koki, Oki, Katsuki, Hida, Masami, Okabe, Haruna, Yoshikawa, Takashi, Ogawa, Ryuta, Lee, Chonho, Higashi, Naoto, Okamoto, Ryosuke, Ozawa, Sachie, Uchida, Senzo, Mitani, Yoko

“…Humpback whales in the western North Pacific are considered endangered due to their small population size and lack of information. Although previous studies…”
Get full text

Annual variation of oceanographic conditions changed migration timing of bowhead whales Balaena mysticetus in the southern Chukchi Sea by Tsujii, Koki, Otsuki, Mayuko, Akamatsu, Tomonari, Amakasu, Kazuo, Kitamura, Minoru, Kikuchi, Takashi, Fujiwara, Amane, Shirakawa, Hokuto, Miyashita, Kazushi, Mitani, Yoko

“…The Chukchi Sea environment changes considerably in physical and biological conditions, driven by the expanding volume of warm Pacific summer water. These…”
Get full text

Study on failure/fracture mechanisms of 3D printed objects by FDM with AE method (Evaluation by using Empirical Mode Decomposition and Chaos analysis) by TAKUMA, Masanori, TSUJII, Koki, SAITOH, Ken-ichi, TAKAHASHI, Yoshimasa, SATO, Tomohiro, NIKI, Yutaka

“…The 3D printer using Fused Deposition Modeling (FDM) is attracting attention as a manufacturing technology that is able to reduce the production time and the…”
Get full text

Study on failure/fracture mechanisms of 3D printed objects by FDM with AE method (Evaluation by using Empirical Mode Decomposition and Chaos analysis) by TAKUMA, Masanori, TSUJII, Koki, SAITOH, Ken-ichi, TAKAHASHI, Yoshimasa, SATO, Tomohiro, NIKI, Yutaka

“…The 3D printer using Fused Deposition Modeling (FDM) is attracting attention as a manufacturing technology that is able to reduce the production time and the…”
Get full text

AE法を用いたFDM方式3Dプリンタ造形物の破損・破壊機構に関する研究（経験的モード分解とカオス解析による評価） by 宅間, 正則, 辻井, 宏樹, 齋藤, 賢一, 高橋, 可昌, 佐藤, 知広, 仁木, 完

Get full text

The relationships between vocalizing bearded seals and sea ice extent in the southern Chukchi Sea by Jimbo, Mina, Mizuguchi, Daisuke, Tsujii, Koki, Miyashita, Kazushi, Mitani, Yoko

“…Bearded seal Erignathus barbatus is one of ice-obligate species, which breeds on seasonal sea-ice in the Arctic and sub-Arctic during March-May. They are…”
Get full text

Seasonal variations in the call presence of bearded seals in relation to sea ice in the southern Chukchi Sea by Jimbo, Mina, Mizuguchi, Daisuke, Shirakawa, Hokuto, Tsujii, Koki, Fujiwara, Amane, Miyashita, Kazushi, Mitani, Yoko

“…The seasonal habitat use of bearded seals is important information in terms of conservation of this species. However, their distribution outside the breeding…”
Get full text

Study on failure/fracture mechanisms of 3D printed objects by FDM with AE method (Evaluation by using Empirical Mode Decomposition and Chaos analysis) by TAKUMA, Masanori, TSUJII, Koki, SAITOH, Ken-ichi, TAKAHASHI, Yoshimasa, SATO, Tomohiro, NIKI, Yutaka

Get full text

The migration of fin whales into the southern Chukchi Sea as monitored with passive acoustics by Tsujii, Koki, Otsuki, Mayuko, Akamatsu, Tomonari, Matsuo, Ikuo, Amakasu, Kazuo, Kitamura, Minoru, Kikuchi, Takashi, Miyashita, Kazushi, Mitani, Yoko

“…Fin whales (Balaenoptera physalus) undergo seasonal migration in the Arctic Sea. Because their migration and distribution is likely affected by changes in…”
Get full text

Seasonal acoustic presence of fin and bowhead whales in relation to prey abundance and oceanographic environments in the southern Chukchi Sea by Tsujii, Koki, Otsuki, Mayuko, Akamatsu, Tomonari, Matsuo, Ikuo, Amakasu, Kazuo, Kitamura, Minoru, Kikuchi, Takashi, Miyashita, Kazushi, Mitani, Yoko

“…To assess how seasonal and ice-associated whales differently respond to the Arctic climate changes, understanding the relationships among their presence and…”
Get full text

Migration monitoring of fin whales in the southern Chukchi Sea with acoustic methods during 2012-2015 by Tsujii, Koki, Otsuki, Mayuko, Akamatsu, Tomonari, Matsuo, Ikuo, Amakasu, Kazuo, Kitamura, Minoru, Kikuchi, Takashi, Miyashita, Kazushi, Mitani, Yoko

“…Environmental changes are considered to affect the migration and distribution of baleen whales in the Arctic region. We examined the seasonal acoustic presence…”
Get full text