Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Keisuke Nakayama"'
Autor:
Keisuke Nakayama, Katsuaki Komai, Motoshi Amano, Shintarou Horii, Yuichiro Somiya, Etsuko Kumamoto, Yoichi Oyama
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Aegagropila linnaei is a filamentous green algal species that often forms beautiful spherical shapes called "lake balls" or "Marimo". A. linnaei were once globally distributed around the world, but the population has been declining for sever
Externí odkaz:
https://doaj.org/article/0f91a3e430694f868f7a774ba66049f2
Carbon dioxide uptake in a eutrophic stratified reservoir: Freshwater carbon sequestration potential
Autor:
Jinichi Sakaguchi, Keisuke Nakayama, Katsuaki Komai, Atsushi Kubo, Taketoshi Shimizu, Junpei Omori, Kohji Uno, Tomoyasu Fujii
Publikováno v:
Heliyon, Vol 9, Iss 10, Pp e20322- (2023)
Carbon capture and storage due to photosynthesis activities has been proposed as a carbon sink to mitigate climate change. To enhance such mitigation, previous studies have shown that freshwater lakes should be included in the carbon sink, since they
Externí odkaz:
https://doaj.org/article/00037ff91cf3418db94c8d3f6d9407ba
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract The vorticity effect on solitary wave profiles has not been solved experimentally; previous studies theoretically and numerically showed that when a solitary wave progressed in the positive direction, the effective wavelength of a solitary w
Externí odkaz:
https://doaj.org/article/39aef202ba7a4cb999d5713563d36da4
Autor:
Jeng-Wei Tsai, Keisuke Nakayama
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Externí odkaz:
https://doaj.org/article/9eaaa501a1fd4b57a60fac6641d45ee9
Publikováno v:
Frontiers in Marine Science, Vol 9 (2023)
Research and social implementation related to carbon in marine and freshwater ecosystems are increasingly gaining emphasis in the global quest to achieve carbon neutrality. It is important not only to advance academic research, but also to solve prac
Externí odkaz:
https://doaj.org/article/75de18ea69e648389e0accca4a84f931
Autor:
Keisuke Nakayama, Katsuaki Komai, Keisuke Ogata, Toshiro Yamada, Yukinobu Sato, Fumiya Sano, Shintarou Horii, Yuichiro Somiya, Etsuko Kumamoto, Yoichi Oyama
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract Aegagropila linnaei is a freshwater green alga, which at one time was distributed widely in the northern hemisphere. The aggregate often forms beautiful spherical shapes known as “lake balls” or “Marimo”. The population of Marimo has
Externí odkaz:
https://doaj.org/article/4d7e9de27d39462d836cfd6c3e11fc12
Autor:
Bing Xiong, Shinichiro Yano, Katsuaki Komai, Naoki Saito, Hiroto Komori, Baixin Chi, Lin Hao, Keisuke Nakayama
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Shallow coastal waters (SCWs) have attracted wide attention in recent years due to their strong carbon sequestration capacity. However, the complex carbon dioxide (CO2) dynamics in the water column makes it difficult to estimate the air–water CO2 f
Externí odkaz:
https://doaj.org/article/fc0508e8f3f04a2aad5451df094a075c
Publikováno v:
Water, Vol 15, Iss 3, p 565 (2023)
Wind is generally considered an important factor driving the transport and mixing processes in stratified enclosed systems such as lakes and reservoirs. Lake Abashiri is one of the instances of such a system. For these systems, typically, the tempora
Externí odkaz:
https://doaj.org/article/89e2d1662e124d15816ee903e574b427
Autor:
Tosiyuki Nakaegawa, Reinhardt Pinzon, Jose Fabrega, Johnny A Cuevas, Hector A De Lima, Eric Cordoba, Keisuke Nakayama, Josue Ivan Batista Lao, Alcely Lau Melo, Diego Arturo Gonzalez, Shoji Kusunoki
Publikováno v:
PLoS ONE, Vol 14, Iss 12, p e0224662 (2019)
This study elucidated the characteristics of climatological seasonal changes in the diurnal variations of precipitation at four ground stations in the upper Río Chagres basin in the Panama Canal watershed. The seasonal changes differed among the sta
Externí odkaz:
https://doaj.org/article/5c17983fa2e2400ebb4fc52ed6ab7360
Autor:
Chihiro Koga, Masahiro Yoneda, Keisuke Nakayama, Satoru Yokoue, Mariko Haraga, Tomoko Oie, Arisa Suga, Fumiko Okada, Hiroshi Matsuura, Fumitake Tsue, Nao Suzuki, Takao Hirofuji
Publikováno v:
International Journal of Dentistry, Vol 2014 (2014)
To examine the effects of Candida on halitosis, the carrier state of Candida was examined in patients who made a visit with a chief complaint of halitosis. Methods. Subjects were 123 patients (42 males and 81 females) who visited our clinic, with a c
Externí odkaz:
https://doaj.org/article/eb5b0e1e798f424484f286e4446bcd63