Výsledky vyhledávání - "Norihiko Kitamura"

Efficiency and effectiveness of stabilization control of high-energy orbit for wideband piezoelectric vibration energy harvesting

Autor: Norihiko Kitamura, Arata Masuda

Publikováno v: Active and Passive Smart Structures and Integrated Systems XII.

This paper investigates the efficiency and the effectiveness of the stabilization control which makes the highest-energy steady-state solution of a nonlinear wideband piezoelectric vibration energy harvester globally stable. For the conventional line

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b25b4d72f0e49d9196fcf0a6ca0f502
https://doi.org/10.1117/12.2296584

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Global stabilization control of high-energy responses of a nonlinear wideband piezoelectric vibration energy harvester using a self-excitation circuit

Autor: Norihiko Kitamura, Arata Masuda

Publikováno v: Active and Passive Smart Structures and Integrated Systems 2017.

This paper presents a resonance-type vibration energy harvester using a nonlinear oscillator with self-excitation circuit. The bandwidth of the resonance peak and the performance of the power generation at the resonance frequency are trade- offs for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c4db83ef78a1f14db4d2fc7f8ca4c07
https://doi.org/10.1117/12.2257858

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Pyrimidine derivatives and related compounds. XLVI. Thermal and photochemical transformation of 5-substituted 6-azido-1,3-dimethyluracils into fused pyrimidines such as isoxazolo(3,4-d)pyrimidines, pyrazolo(3,4-d)pyrimidines, and pyrimido(4,5-d)(1,2,3)triazine

Autor: Tetsuji Asao, Yoshifumi Maki, Kazuo Maruhashi, Shigeo Senda, Norihiko Kitamura, Kosaku Hirota

Publikováno v: Chemical and Pharmaceutical Bulletin. 31:3959-3966

Thermolysis and photolysis of 6-azido-1, 3-dimethyluracils possessing certain substituents (formyl, benzoyl, hydrazonomethyl, phenyl, and benzyl groups) at the 5-position provided new methods for the preparation of fused pyrimidines. Irradiation and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::19e5186ce20f7a6761bbbaf49f963b17
https://doi.org/10.1248/cpb.31.3959

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Pyrimidine derivatives and related compounds. Part 50. Photochemical reaction of 5-substituted 6-azido-1,3-dimethyluracils with nucleophiles. Ring transformation of pyrimidine to 1,3,5-triazepine and hydantoin ring systems

Autor: Shigeo Senda, Kazuo Maruhashi, Tetsuji Asao, Norihiko Kitamura, Kosaku Hirota

Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :1719

Photolysis of 5-substituted 6-azidouracil derivatives in the presence of nucleophiles has been studied. Irradiation of 5-alkyl-6-azidouracils (3) in the presence of amines caused a ring expansion to give 1,3,5-triazepine derivatives (7). Photolysis o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5e6434db3c98ef172a7304edffd85db
https://doi.org/10.1039/p19840001719

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