Výsledky vyhledávání - "Ryohei Yuasa"

Formal Synthesis of Teadenols via Palladium-Catalyzed 6-endo Cyclization of an Epoxyphenol

Autor: Mitsuru Kitamura, Hiroki Suetake, Kosuke Hoshino, Yuta Higashijima, Masato Kisanuki, Ryohei Yuasa, Yukihiro Yamaguchi, Takahiro Shimazu, Naoya Koga, Hiro Hamada, Nobuhiro Miyori, Hirokazu Shimooka, Tatsuo Okauchi

Publikováno v: Synlett. 33:1523-1526

Formal syntheses of teadenols A and B are achieved via a key Pd-catalyzed 6-endo cyclization of a phenol possessing a vinyl epoxide moiety. Although 5-exo and 6-endo cyclizations compete during cyclizations of epoxides with a nucleophilic moiety at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5aa41086a09b4c63c80e220ce82f9cb
https://doi.org/10.1055/a-1890-8287

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Prototype of 3D shape IPMC using pellet type 3D printer and its driving experiment

Autor: Kazuki SHISHIKURA, Hiroyuki NABAE, Ryohei YUASA, Tetsuya HORIUCHI, Gen ENDO, Koichi SUZUMORI

Publikováno v: The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec). 2022:2P1-K02

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e4124d608879c2ea591d57548757d5c
https://doi.org/10.1299/jsmermd.2022.2p1-k02

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Synthesis of the cyclic prenylguanidine nitensidine E using a palladium-catalyzed carbenylative amination

Autor: Ryohei Yuasa, Mitsuru Kitamura, David L. Van Vranken

Publikováno v: Tetrahedron Letters. 56:3027-3031

We demonstrate the utility of carbenylative aminations in the synthesis of the cyclic alkaloid nitensidine E involving both protected and un-protected guanidine moieties. The alkylguanidine substrate is generated using a Mitsunobu reaction and we sho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba61152e059b978039a981cf291641a2
https://doi.org/10.1016/j.tetlet.2014.10.140

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Accurate State Space and Robust Control of Hydraulic Driven Manipulator for Mine Clearance Assistance

Autor: Ryohei Yuasa, Kenzo Nonami

Publikováno v: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C. 72:2154-2161

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a29a4c33c01a1bd87a3d73c68efa6472
https://doi.org/10.1299/kikaic.72.2154

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Preliminary Design and Feasibility Study of a 6-Degree of Freedom Robot for Excavation of Unexploded Landmine

Autor: Ryohei Yuasa, Kenzo Nonami, H. Ono, Daniel Waterman, Shingo Amano

Publikováno v: Autonomous Robots. 18:293-302

At present, the Sensing and Access Control R&D for Humanitarian Mine Action project has been carrying out by the Japan Science and Technology Agency (JST). Chiba University's group join to this project. Our effort is to develop a small vehicle for mi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53b130c198d998100d93a2c6bc35212d
https://doi.org/10.1007/s10514-005-6841-x

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Master-slave hand system of different structures, grasp recognition by neural network and grasp mapping

Autor: Hui Shao, Ryohei Yuasa, Tytus Wojtara, Shingo Amano, Kenzo Nonami, Yasukazu Nobumoto

Publikováno v: Robotica. 22:449-454

This article is proposing a grasp recognition and grasp mapping method for a land mine clearance master-slave system. The system consists of a data glove and a powerful hydraulic hand. Because of the different structure of the master and slave hand a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81418e69008a09b6c11f684f75e0c8f6
https://doi.org/10.1017/s0263574704000013

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