Zobrazeno 1 - 10
of 151
pro vyhledávání: '"Kohei NODA"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract In Brillouin optical correlation-domain reflectometry (BOCDR), sinusoidal modulation is applied to the output frequency of a light source, with spatial resolution inversely related to the modulation amplitude. We have developed an effective
Externí odkaz:
https://doaj.org/article/30053c95dafa4bc791e499e3889a69b6
Autor:
Kenta Otsubo, Guangtao Zhu, Takaki Kiyozumi, Kohei Noda, Kentaro Nakamura, Heeyoung Lee, Yosuke Mizuno
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Abstract Brillouin optical correlation-domain analysis (BOCDA) utilizing low-coherence light sources offers high-resolution distributed strain and temperature sensing. However, conventional BOCDA requires dual-end injection of pump and probe light in
Externí odkaz:
https://doaj.org/article/68bf14aa23564cf0b22f5bb09101beee
Autor:
Moritsugu Sakamoto, Huynh Thanh Nhan, Kohei Noda, Tomoyuki Sasaki, Masayuki Tanaka, Nobuhiro Kawatsuki, Hiroshi Ono
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract A polarization-probe polarization-imaging (PPPI) system was developed for the near-infrared (NIR) regime. This system comprises two components operating as a polarization generator and a polarization analyzer to enable polarization image cap
Externí odkaz:
https://doaj.org/article/25672d2bcc684acca4998eb6ddcbae3c
Autor:
Kun Wang, Kazuya Kishizawa, Kohei Noda, Wolfgang Kurz, Xingchen Dong, Alexander W. Koch, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno
Publikováno v:
Applied Physics Express, Vol 17, Iss 5, p 052001 (2024)
Fiber Bragg gratings (FBGs) have been extensively used for single-point and multi-point measurements, mostly inscribed in single-mode fibers. However, it is feasible to inscribe FBGs in multimode fibers, which resist bending and can perform discrimin
Externí odkaz:
https://doaj.org/article/b7da6c9704f748369cb033c067caed1b
Autor:
Tomoyuki Sasaki, Mami Harada, Moritsugu Sakamoto, Kohei Noda, Keiichi Itoh, Hiroyuki Okamoto, Hiroshi Ono
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 4, Pp 1-6 (2022)
Here, we report a metasurface for polarization converters in the terahertz (THz) spectral range. The THz metasurface consists of a metal mesh with subwavelength isotropic apertures and a nematic liquid crystal (LC) that is a uniaxially anisotropic di
Externí odkaz:
https://doaj.org/article/52cefdf401474f7c822de45797e5cf74
Publikováno v:
IEEE Access, Vol 9, Pp 124701-124710 (2021)
Brillouin optical correlation-domain reflectometry (BOCDR) is a fiber-optic distributed sensing technique with single-end accessibility and high spatial resolution. In BOCDR, the measured Brillouin gain spectrum (BGS) distribution is generally given
Externí odkaz:
https://doaj.org/article/f19c3d1d6cf44233be3a950787f8780a
Autor:
Sho NAKAMURA, Kohei NODA, Masafumi MIWA, Shiori MINABE, Teruki HAGIWARA, Akira HIRASAWA, Shuichi MATSUYAMA, Ryutaro MORIYAMA
Publikováno v:
The Journal of Reproduction and Development, Vol 66, Iss 2, Pp 135-141 (2019)
Negative energy balance in domestic animals suppresses their reproductive function. These animals commonly use long-chain fatty acids (LCFAs) from adipocytes as an energy source under states of malnutrition. The G-protein coupled receptor, GPR120, is
Externí odkaz:
https://doaj.org/article/8585e1ed7d574c1a82dd47e43b46c253
Publikováno v:
APL Photonics, Vol 6, Iss 10, Pp 101302-101302-6 (2021)
Light detection and ranging (LiDAR) technology has recently been attracting considerable attention, but it is still difficult to achieve distributed reflectivity sensing and vibration detection simultaneously at high speed. To tackle this issue, we d
Externí odkaz:
https://doaj.org/article/86723fd80b7f497db431e84a720ad981
Publikováno v:
The Journal of Reproduction and Development, Vol 65, Iss 6, Pp 515-525 (2019)
Prediction of parturition is essential for sustainable production in beef and dairy cattle, yet the present methods are limited by their high invasiveness and low utility. Here we compared prepartum changes in ventral tail base surface temperature (S
Externí odkaz:
https://doaj.org/article/17adf53c0a7841d48b207d402d39c72e
Autor:
Tomoyuki Sasaki, Yuki Nishie, Masaatsu Kambayashi, Moritsugu Sakamoto, Kohei Noda, Hiroyuki Okamoto, Nobuhiro Kawatsuki, Hiroshi Ono
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 6, Pp 1-7 (2019)
We report a terahertz (THz) metamaterial consisting of a metal mesh layer with nematic liquid crystals (LCs). The metal mesh has subwavelength apertures that function as a bandpass filter in the THz spectral range. The LCs are embedded and aligned ho
Externí odkaz:
https://doaj.org/article/70c26a26719e4dbfa6d178b0d6620434