Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Yoshitsugu Naka"'
Autor:
Yoshitsugu NAKA, Masataka HIMEDA
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 3, Pp JFST0018-JFST0018 (2020)
External forcing on a wing-tip vortex can affect its instability, and therefore an optimal perturbation can improve the aerodynamic performance of the wing. The present study examined the unsteadiness of the wing-tip vortex under periodic wing-tip vi
Externí odkaz:
https://doaj.org/article/bd19d56be53843acbeaea355712040d9
Autor:
Yoshitsugu NAKA, Akira KAGAMI
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 3, Pp JFST0016-JFST0016 (2020)
The aerodynamic performance of the multi-rotor drone under the wall proximity has been investigated by experiment and numerical simulation. The propeller airflow along with the wall deflects toward the wall due to the Coanda effect, and it yields a n
Externí odkaz:
https://doaj.org/article/f15225694f62463cbdaad36b7ed7c430
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 1, Pp JFST0003-JFST0003 (2020)
The present study aims to develop an ultrasound acoustic streaming actuator for flow control. The driving force can be derived from the continuity equation and the Navier-Stokes equation for the viscous compressible flow. Commercially available trans
Externí odkaz:
https://doaj.org/article/45a0f8c8104f4a17b6dd1cc7cb7fee40
Publikováno v:
Journal of Fluid Science and Technology, Vol 6, Iss 6, Pp 976-988 (2011)
Influence of the flow induced by dielectric barrier discharge (DBD) plasma actuators on the wing-tip vortex is investigated numerically and experimentally. The plasma actuators are installed on the suction side of the NACA0012 airfoil and operated in
Externí odkaz:
https://doaj.org/article/37d751c435e74c5299a6d171586cdf89
Publikováno v:
Journal of Fluid Science and Technology, Vol 5, Iss 2, Pp 156-168 (2010)
We have performed experiments in a turbulent mixing layer with periodic forcing introduced by a Piezo Film Actuator (PFA). Three different lengths of PFAs have been used, and the effects of various combinations of forcing amplitudes and frequencies a
Externí odkaz:
https://doaj.org/article/5a93a8288caf401bbafc042c7df17fb6
Publikováno v:
Journal of Fluid Science and Technology, Vol 4, Iss 1, Pp 107-115 (2009)
Simultaneous measurements of fluctuating velocity and pressure have been conducted in the near field of a wing-tip vortex trailing from a NACA0012 half wing. In the vortex core, the time-averaged streamwise velocity shows a wake-like profile which ex
Externí odkaz:
https://doaj.org/article/f44bf8dcf8a34b79bca9e9dd25adf005
Publikováno v:
The Proceedings of the Fluids engineering conference. 2022:OS03-53
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15e381ac9762c0300a0920d96786ebc3
https://doi.org/10.1299/jsmefed.2022.os03-53
https://doi.org/10.1299/jsmefed.2022.os03-53
Autor:
Akihiro TSUCHIYA, Yoshitsugu NAKA
Publikováno v:
The Proceedings of the Fluids engineering conference. 2022:OS02-04
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17b87401efd73157c4f561b4780bcec2
https://doi.org/10.1299/jsmefed.2022.os02-04
https://doi.org/10.1299/jsmefed.2022.os02-04
Autor:
Hao Zhang, Takahiro Tsuchikawa, Satoshi Takeuchi, Hang Deng, Kimitaka Tanaka, Aya Matsui, Yoshitsugu Nakanishi, Toshimichi Asano, Takehiro Noji, Toru Nakamura, Shintaro Takeuchi, Masataka Wada, Jian Xu, Yu Zhang, Satoshi Hirano
Publikováno v:
World Journal of Surgical Oncology, Vol 22, Iss 1, Pp 1-9 (2024)
Abstract Introduction Survival comparisons among patients with liver metastases from pancreatic and rectal neuroendocrine tumors (NETs) were limited, and the efficacy of observation rules in patients undergoing hepatectomy for neuroendocrine liver me
Externí odkaz:
https://doaj.org/article/ae340f10346a468781e18f0819da9489
Autor:
Hao Zhang, Takahiro Tsuchikawa, Satoshi Takeuchi, Kenji Hirata, Kimitaka Tanaka, Aya Matsui, Yoshitsugu Nakanishi, Toshimichi Asano, Takehiro Noji, Toru Nakamura, Shintaro Takeuchi, Masataka Wada, Satoshi Hirano
Publikováno v:
Endocrine Journal, Vol 71, Iss 9, Pp 873-880 (2024)
As novel biomarkers for gastroenteropancreatic neuroendocrine tumors (GEPNET) are in demand, we aimed to validate the clinical value of the NETest in Japanese patients. Between 2021 and 2023, blood and clinical data were collected from patients with
Externí odkaz:
https://doaj.org/article/39465c1aa9dc4078afadaefabe35b0aa