Zobrazeno 1 - 10
of 506
pro vyhledávání: '"Koichiro, Tanaka"'
Autor:
Takashi Arikawa, Jaeyong Kim, Toshikazu Mukai, Naoki Nishigami, Masayuki Fujita, Tadao Nagatsuma, Koichiro Tanaka
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract As a key component for next-generation wireless communications (6 G and beyond), terahertz (THz) electronic oscillators are being actively developed. Precise and dynamic phase control of ultrafast THz waveforms is essential for high-speed be
Externí odkaz:
https://doaj.org/article/32a77258d96b4ee78d892fc42703a08c
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in t
Externí odkaz:
https://doaj.org/article/b5232e1b19884bf9915c91d0ed196f69
Autor:
Zhenya Zhang, Fumiya Sekiguchi, Takahiro Moriyama, Shunsuke C. Furuya, Masahiro Sato, Takuya Satoh, Yu Mukai, Koichiro Tanaka, Takafumi Yamamoto, Hiroshi Kageyama, Yoshihiko Kanemitsu, Hideki Hirori
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
The authors studied HoFeO3 crystal using multicycle THz magnetic pulses enhanced strongly by spiral-shaped microstructure. The observed Faraday ellipticity demonstrates second- and third-order harmonics of the magnetization oscillation and an asymmet
Externí odkaz:
https://doaj.org/article/9afce982e8b64b9c8b22544bc29a72a2
Autor:
Koki Chiba, Ryuichi Kambayashi, Mayu Onozato, Ai Goto, Hiroko Izumi-Nakaseko, Yoshinori Takei, Akio Matsumoto, Koichiro Tanaka, Yasunari Kanda, Takeshi Fukushima, Atsushi Sugiyama
Publikováno v:
Journal of Pharmacological Sciences, Vol 150, Iss 3, Pp 154-162 (2022)
Imatinib has been reported to induce heart failure and/or QTc prolongation. To better understand their underlying mechanisms, we assessed its effects on cardiohemodynamic, electrocardiographic and echocardiographic variables along with biomarkers of
Externí odkaz:
https://doaj.org/article/fd87e9c0826943c79c0ee21cfceafe87
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
The authors report passive mode-locking and frequency-comb generation induced by optical feedback in the resonant-tunneling-diode terahertz oscillator, a semiconductor-based oscillator covering the frequency range of 0.1 to 2 THz.
Externí odkaz:
https://doaj.org/article/7c1bb42319694f028eea9c516cf59206
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043130 (2023)
High harmonic generation (HHG) in solids reflects the underlying nonperturbative nonlinear dynamics of electrons in a strong light field and is a powerful tool for ultrafast spectroscopy of electronic structures. Photocarrier doping allows us to unde
Externí odkaz:
https://doaj.org/article/f6a355d49014412e80cf1b34fadb7022
Autor:
Makoto Segawa, Norio Iizuka, Hiroyuki Ogihara, Koichiro Tanaka, Hajime Nakae, Koichiro Usuku, Kojiro Yamaguchi, Kentaro Wada, Akihiro Uchizono, Yuji Nakamura, Yoshihiro Nishida, Toshiko Ueda, Atsuko Shiota, Naoko Hasunuma, Kyoko Nakahara, Miwa Hebiguchi, Yoshihiko Hamamoto
Publikováno v:
Frontiers in Medical Technology, Vol 5 (2023)
BackgroundIn Kampo medicine, tongue examination is used to diagnose the pathological condition “Sho,” but an objective evaluation method for its diagnostic ability has not been established. We constructed a tongue diagnosis electronic learning an
Externí odkaz:
https://doaj.org/article/ebf6398e8b134dd68aa6fff1366e5f84
Autor:
Shin Takayama, Takao Namiki, Ryutaro Arita, Rie Ono, Akiko Kikuchi, Minoru Ohsawa, Natsumi Saito, Satoko Suzuki, Hajime Nakae, Seiichi Kobayashi, Tetsuhiro Yoshino, Tomoaki Ishigami, Koichiro Tanaka, Kotaro Nochioka, Airi Takagi, Masaru Mimura, Takuhiro Yamaguchi, Tadashi Ishii, Akito Hisanaga, Kazuo Mitani, Takashi Ito
Publikováno v:
Frontiers in Pharmacology, Vol 13 (2022)
The traditional Japanese (Kampo) medicine, kakkonto with shosaikotokakikyosekko, has antiviral and anti-inflammatory effects. In this randomized trial, patients with mild and moderate coronavirus disease (COVID-19) were randomly allocated to the cont
Externí odkaz:
https://doaj.org/article/479b8d441e994b259618aa6eed0d2948
Autor:
Masayuki Hojo, Koichiro Tanaka
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Spontaneous parametric down-conversion is an essential tool for a quantum light source in the infrared region ranging 2–5 µm for the purpose of material identification, chemical analysis, and gas sensing. So far, photon pairs from the pro
Externí odkaz:
https://doaj.org/article/ff026fa844a148d8b8ef1745469b9b92
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023168 (2023)
We propose a way to discover, in tabletop experiments, spacetime-emergent materials, that is, materials holographically dual to higher-dimensional quantum gravity systems under the AdS/CFT. The emergence of the holographic spacetime is verified by a
Externí odkaz:
https://doaj.org/article/0b13659f7c6640c2a2437d3352bfd000