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Winged Test Rocket With Fully Autonomous Guidance And Control For Realizing Reusable Suborbital Vehicle

Autor: Koichi Yonemoto, Hiroshi Yamasaki, Masatomo Ichige, Yusuke Ura, Guna S. Gossamsetti, Takumi Ohki, Kento Shirakata, Ahsan R. Choudhuri, Shinji Ishimoto, Takashi Mugitani, Hiroya Asakawa, Hideaki Nanri

This paper presents the strategic development plan of winged rockets WIRES (WInged REusable Sounding rocket) aiming at unmanned suborbital winged rocket for demonstrating future fully reusable space transportation technologies, such as aerodynamics,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec287b12cb6ee7de1269b90317d36549

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Preparation of poly(2-pyridone-3,5-diyl)s with -(CH2)4-SO3M (M = H or Na) side chains

Autor: Naoto Kumagai, Tohru Takei, Yasuo Kudoh, Yosuke Harada, Takumi Ohki, Take-aki Koizumi, Takakazu Yamamoto, Takahiro Kojima, Kohei Shiramizu, Masahiro Abe, Masashi Oota

Publikováno v: Polymer 2012. 53:5995-5999

Poly(2-pyridone-3,5-diyl)s with –(CH 2 ) 4 –SO 3 M (M = H or Na) side chains have been prepared by nickel-complex promoted dehalogenative polycondensation. A composite film of the polymer with –(CH 2 ) 4 –SO 3 H side chains and poly(vinyl alc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::840277ade7ddbc3c3c83ab7092c733eb
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100711140

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Preparation of dibromopyridines having -(CH2)m-SO3Na groups as monomers for new polypyridines

Autor: Yoshihisa Sei, Takakazu Yamamoto, Hiroki Fukumoto, Take-aki Koizumi, Masahiro Abe, Takahiro Kojima, Akihiro Maeda, Takumi Ohki, Masashi Oota, Tohru Takei, Kohei Shiramizu, Naoto Kumagai, Yosuke Harada

Publikováno v: Tetrahedron Lett. 2012. 53:5907-5910

Dibromopyridines or dibromopyridone with –(CH2)m–SO3Na group(s) has been prepared via the reactions of the corresponding dibromopyridines with –OH and –NH2 groups with sultone. These compounds were converted into polymers with the –(CH2)m�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11a2bbb5bb5af91d65b72b8e69d1f8ee
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100711141

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Solvation of Ions in Aqueous Hydrophilic Polymer Solutions

Autor: Takumi Ohki, Tetsuo Okada, Makoto Harada

Publikováno v: Journal of Ion Exchange. 18:150-153

We indicated, in our previous work, that tetraethylammonium (Et4N+) ion is solvated in an aqueous polymer solution in a similar fashion to in water, and the Et4N+ electrode can be used for a reference for the determination of transfer thermodynamic v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee12d1a38821b0b031722d22a9b56373
https://doi.org/10.5182/jaie.18.150

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Solvation of Ions in Hydrophilic Layer of Polyoxyethylated Nonionic Micelle. Cooperative Approach by Electrophoresis and Ion-Transfer Voltammetry

Autor: Takumi Ohki, Tetsuo Okada, Makoto Harada

Publikováno v: The Journal of Physical Chemistry B. 110:15486-15492

Electrophoretic measurements of micellar mobility have revealed that polyoxyethylated nonionic surfactant micelles have negative zeta potential in various electrolytes, indicating that the partition of anions into the micelle dominates the entire ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6aa0f533e35256b867086a2a8ae020e
https://doi.org/10.1021/jp062493l

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Perturbation of Second and Farther Hydration Shells of Alkali Cations and Bromide in Concentrated Aqueous Protein as a Water-Shortage Medium

Autor: Takumi Ohki, Makoto Harada, Tetsuo Okada

Publikováno v: Journal of Physical Chemistry B. 112

The Gibbs free energies of transfer of selected ions from water to concentrated aqueous ovalbumin and albumin (DeltaW(W') G degrees j) have been determined by ion-transfer voltammetry. Negative values for the tetrabutylammonium ion suggest its direct

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3abc8770cb570e998452e517296975a0
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100565951

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