Zobrazeno 1 - 10 of 80 pro vyhledávání: '"Naoki, Okamura"'
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Akademický článek
Synthesis, Photoluminescence, and Electroluminescence of Phosphorescent Dipyrido[3,2-a;2′3′-c]phenazine–Platinum(II) Complexes Bearing Hole-Transporting Acetylide Ligands
Autor: Hiroki Matsuura, Naoki Okamura, Masaki Nagaoka, Naoya Suzuki, Shintaro Kodama, Takeshi Maeda, Shigeyuki Yagi
Publikováno v: Molecules, Vol 29, Iss 16, p 3849 (2024)
In this study, novel phosphorescent dipyrido[3,2-a;2′3′-c]phenazine (dppz)–platinum(II)–phenylacetylide complexes were developed to fabricate non-doped organic light-emitting diodes (OLED) by solution-processing. To facilitate the charge carr
Externí odkaz: https://doaj.org/article/b652001190dc493abcc1627a7fe4cf2b
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2
Akademický článek
Application of square-wave inverter in excitation system for magnetic nanoparticle tomography
Autor: Kohta Higashino, Naoki Okamura, Teruyoshi Sasayama, Takashi Yoshida
Publikováno v: AIP Advances, Vol 12, Iss 3, Pp 035012-035012-5 (2022)
To collect the signals of magnetic nanoparticles (MNPs) at a distance from a magnetic nanoparticle tomography, a strong ac magnetic field should be generated by applying a high current to the excitation coil. To this end, sinusoidal excitation using
Externí odkaz: https://doaj.org/article/328f43da6ea1489e9797c99ac880bfb7
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3
Akademický článek
Influence of each cylinder’s contribution on the total effective viscosity of a two-dimensional suspension by a two-way coupling scheme
Autor: Naoki OKAMURA, Tomohiro FUKUI, Misa KAWAGUCHI, Koji MORINISHI
Publikováno v: Journal of Fluid Science and Technology, Vol 16, Iss 3, Pp JFST0020-JFST0020 (2021)
Einstein’s viscosity formula is sometimes strongly limited for viscosity estimation of suspensions; that is, it is only applicable for low-concentration suspensions in which hydrodynamic interactions are sufficiently negligible. In particular, hydr
Externí odkaz: https://doaj.org/article/dbf3807433294d37879f5e5d8476f18c
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6
Inverse Problem Analysis in Magnetic Nanoparticle Tomography Using Minimum Variance Spatial Filter
Autor: Takashi Yoshida, Teruyoshi Sasayama, Naoki Okamura
Publikováno v: IEEE Transactions on Magnetics. 58:1-5
In magnetic nanoparticle tomography (MNT), the reduction of artefacts and the calculation time can be used to estimate the position of magnetic nanoparticles (MNPs). Non-negative least squares (NNLS) inverse problem analysis has been used in MNT syst
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cbce1b22ac42a74f96a611b95851fb7
https://doi.org/10.1109/tmag.2021.3078748
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9
Sensitivity Improvement of Magnetic Nanoparticle Imaging by Compensation With Digital-to-Analog Converter
Autor: Naoki Okamura, Takashi Yoshida, Teruyoshi Sasayama
Publikováno v: IEEE Transactions on Magnetics. 57:1-5
In the application of the magnetic nanoparticle (MNP) imaging technique, which uses a large ac magnetic field and detects harmonic signals, it is important to attenuate the fundamental signal generated by the magnetic field used for excitation. In th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d9ad99e174dc0164140dad920e807a4
https://doi.org/10.1109/tmag.2020.3014375
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