Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Keisuke Maekawa"'
Autor:
Brendan M. Heffernan, Yuma Kawamoto, Keisuke Maekawa, James Greenberg, Rubab Amin, Takashi Hori, Tatsuya Tanigawa, Tadao Nagatsuma, Antoine Rolland
Publikováno v:
APL Photonics, Vol 8, Iss 6, Pp 066106-066106-7 (2023)
Future wireless communication infrastructure will rely on terahertz systems that can support an increasing demand for large-bandwidth, ultra-fast wireless data transfer. In order to satisfy this demand, compact, low-power, and low noise sources of te
Externí odkaz:
https://doaj.org/article/e5032594f9cd460993914ee4c0c72e6c
Autor:
Keisuke Maekawa, Yuma Kawamoto, Tomoya Nakashita, Toki Yoshioka, Takashi Hori, Brendan M. Heffernan, James Greenberg, Rubab Amin, Tatsuya Tanigawa, Antoine Rolland, Tadao Nagatsuma
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
We present a THz wireless link using photonics-based signal generators using ultralow amplitude- and phase-noise Brillouin laser sources for both the transmitter and receiver, and demonstrate successful transmission of over-100-Gbit/s signals at 300
Autor:
Toki Yoshioka, Yuma Kawamoto, Keisuke Maekawa, Tomoya Nakashita, Takahiro Ohara, Hiroshi Ito, Ryo Koma, Ryo Igarashi, Kazutaka Hara, Junichi Kani, Tadao Nagatsuma
Publikováno v:
2022 Asia-Pacific Microwave Conference (APMC).
Autor:
Jun Takeda, Kazuhiro Yanagi, Keisuke Maekawa, Yasuo Minami, Ikufumi Katayama, Masahiro Kitajima
Publikováno v:
Physical Review B. 97
The gate bias dependence of excited-state relaxation dynamics in metallic single-walled carbon nanotubes (MCNTs) was investigated using pump-probe transient absorption spectroscopy coupled with electrochemical doping through an ionic liquid. The tran
Publikováno v:
Journal of Nuclear Fuel Cycle and Environment. 20:53-70
Publikováno v:
Journal of Solid Mechanics and Materials Engineering. 7:224-227
Gels have unique properties such as low frictional properties, permeability and biocompatibility due to their high water content. When the gels are developed as industrial materials, we need to establish a method of quantitative analysis derived from
Autor:
Yasuo Minami, Keisuke Maekawa, Jun Takeda, Kazuhiro Yanagi, Ikufumi Katayama, Masahiro Kitajima
Publikováno v:
International Conference on Ultrafast Phenomena.
We have investigated bias-voltage dependence of carrier dynamics in metallic single-walled carbon nanotubes. By tuning the Fermi energy with the bias-voltage, the carrier relaxation time becomes minimum near the Dirac point, indicating the carrier-ca
Autor:
Kenzi Karasaki, Michito Shimo, Keisuke Maekawa, Atsushi Sawada, Kazumasa Ito, Yu-Shu Wu, Koichiro Hatanaka
Publikováno v:
Journal of Hydrology. 403:49-57
Geohydrologic model uncertainties include permeability, boundary, and initial conditions as well as the conceptual model it is based on. We present some examples of using information other than pressure data to constrain a geohydrologic model of the
Publikováno v:
Journal of Groundwater Hydrology. 53:193-206
高レベル放射性廃棄物の地層処分における安全性評価には、物質移動を規定する浅部から深部までの地下水流動特性の把握が必要である。著者らが北海道幌延地域での浅部地下水流動系
Publikováno v:
Face and Facial Expression Recognition from Real World Videos ISBN: 9783319137360
FFER@ICPR
FFER@ICPR
In this paper, we propose a scalable face retrieval method on large data. In order to search a particular person from videos on the Web, face recognition is one of the most effective methods. Needless to say that retrieving faces from videos are more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d220c478c987c4e727369312f6c43ed
https://doi.org/10.1007/978-3-319-13737-7_9
https://doi.org/10.1007/978-3-319-13737-7_9