Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Shigeo Nakagawa"'
Autor:
Yukiko Muller, Shiho Oshiro, Shigeo Nakagawa, Akiyoshi Kawamori, Taisaku Suzuki, Hajime Toma, Tomohisa Wada
Publikováno v:
OCEANS 2022, Hampton Roads.
Publikováno v:
Global Oceans 2020: Singapore – U.S. Gulf Coast.
Because of a progress in marine development for seabed natural resource, deep sea exploring becomes essential. Then, wireless underwater communication has become important to communicate with distanced terminals. In case that the signal propagation c
Publikováno v:
2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).
This paper describes a 32kHz bandwidth underwater acoustic Orthogonal Frequency Division Multiple Access (OFDM) communication system to transmit higher definition image or movie data packet from deep see AUV etc. to water surface ship. The transmissi
Publikováno v:
OCEANS 2016 MTS/IEEE Monterey.
This paper proposes an underwater acoustic OFDM communication system to transmit image or movie data from deep see AUV etc. to surface ship. In order to mitigate Doppler shift effect caused by transmitter and/or receiver movement, the OFDM receiver p
Publikováno v:
Journal of Porphyrins and Phthalocyanines. :1047-1054
Water-soluble porphyrins bearing multidentate ligands were prepared by covalent binding of nitrilotriacetic acid to 5,10,15,20-tetrakis(4-aminophenyl)porphyrin or three atropisomers of 5,10,15,20-tetrakis(2-aminophenyl)porphyrin. The acid-base proper
Publikováno v:
Inorganica Chimica Acta. 349:17-22
Binding equilibrium of NO to three water-soluble iron(III) porphyrins was examined spectrophotometrically in aqueous solution. Effects of electron-donor ability and hydrophobicity of porphyrin on the NO binding were discussed on the basis of the ther
Publikováno v:
Inorganica Chimica Acta. 325:29-35
Porphyrins with a multi-dentate ligand have been prepared by a covalent binding of nitrilotriacetic acid (NTA) to meso-mono (ortho- or para-aminophenyl)-triphenylporphyrin. The equilibrium between the porphyrins and Zn2+ has been analyzed by ultra vi
Publikováno v:
Chemical and Pharmaceutical Bulletin. 49:1573-1580
We synthesized two water-soluble porphyrins appending platinum(II) complexes [alpha,beta-(4a) and alpha,alpha-(4b) 5,15-bis(2-trans-[PtCl(NH3)2]N-2-aminoethylaminocarbonylphenyl) 2,3,7,8,12,13,17,18-octamethylporphyrin] and studied their reactions wi
Publikováno v:
Chemical and Pharmaceutical Bulletin. 44:1849-1852
Generation of nitric oxide (NO) from aromatic N-nitrosoureas 1-3 at ambient temperature without photo irradiation was confirmed by the trapping of NO as a nitrosyl complex of 5, 10, 15, 20-tetrahenylporphyrinatocobalt(II) and spectrophotometrically q
Autor:
Shigeo Nakagawa, Hiroki Munakata, Sonoka Takinami, Hiroyasu Imai, Atsuko Takahashi, Yoshio Uemori, Eishin Kyuno
Publikováno v:
Inorganica Chimica Acta. 224:157-161
Two zinc porphyrins with a superstructure around the ligand binding sites have been prepared and characterized by 1 H NMR spectroscopy. The binding properties of amine ligands to the zinc porphyrins were analyzed by UV-Vis and 1 H NMR spectroscopy. T