Zobrazeno 1 - 10
of 290
pro vyhledávání: '"Tomomi Uchiyama"'
Autor:
Eiichi Satou, Tomomi Uchiyama, Kotaro Takamure, Toshihiko Ikeda, Tomoko Okayama, Tomoaki Miyazawa, Daisuke Tsunashima
Publikováno v:
Heliyon, Vol 9, Iss 10, Pp e20833- (2023)
This study is focused on the development of a microhydraulic turbine that can stably and efficiently generate electricity even in channel where snow masses frequently flow down. A hydraulic turbine of an undershot cross-flow type was installed in an
Externí odkaz:
https://doaj.org/article/26d5564d4f9b4f6da8f4fa26a0ceb92c
Publikováno v:
Applications in Engineering Science, Vol 15, Iss , Pp 100137- (2023)
In the field of metal cutting, the cutting oil scatters in air as a microscale oil mist, which adversely affects the work environment. A baffle plate-type mist trap was manufactured as simple equipment for collecting oil mist floating in air. The oil
Externí odkaz:
https://doaj.org/article/dbd4d70e8d6445d0bda34dff5c4fb806
Publikováno v:
Environment International, Vol 177, Iss , Pp 108022- (2023)
A non-filter virus inactivation unit was developed that can control the irradiation dose of aerosolized viruses by controlling the lighting pattern of a 280 nm deep-UV (DUV)-LED and the air flowrate. In this study, the inactivation properties of aero
Externí odkaz:
https://doaj.org/article/efd69bebe1ab48acaee70ff7c077aca5
Autor:
Kotaro Takamure, Yasuaki Sakamoto, Yasumasa Iwatani, Hiroshi Amano, Tetsuya Yagi, Tomomi Uchiyama
Publikováno v:
Environment International, Vol 170, Iss , Pp 107580- (2022)
A general-purpose virus inactivation unit that can inactivate viruses was developed using deep ultraviolet (DUV) LEDs that emit DUV rays with a wavelength of 280 nm. The inside of the virus inactivation unit is a rectangular conduit with a sharp turn
Externí odkaz:
https://doaj.org/article/4b6f83dfd8e04eb78eb3b764e67f00c1
Publikováno v:
AIP Advances, Vol 12, Iss 10, Pp 105112-105112-13 (2022)
Wake flows have significant effects on vehicles, buildings, and other objects encountered in daily life. Thus, wake control techniques are of practical importance and have been extensively investigated. One passive wake-control technique is to create
Externí odkaz:
https://doaj.org/article/f748d022256d4701bebaf9b3fddf0b31
Publikováno v:
Advances in Mechanical Engineering, Vol 14 (2022)
This study aims to improve the power generation performance of the self-powered IoT turbine flowmeter developed in our previous study. To achieve this, a cone was installed at the front-center of the rotor to accelerate the water flow and streamline
Externí odkaz:
https://doaj.org/article/edc5d4f992d9450386f6a54486bb970e
Simultaneous Measurement of Volumetric Flowrates of Gas–Liquid Bubbly Flow Using a Turbine Flowmeter
Publikováno v:
Sensors, Vol 23, Iss 9, p 4270 (2023)
The flowrate measurement of the gas–liquid two-phase flow frequently observed in industrial equipment, such as in heat exchangers and reactors, is critical to enable the precise monitoring and operation of the equipment. Furthermore, certain applic
Externí odkaz:
https://doaj.org/article/08e2da4581af471290094aca14c99ef9
Autor:
Kotaro Takamure, Yasuaki Sakamoto, Tetsuya Yagi, Yasumasa Iwatani, Hiroshi Amano, Tomomi Uchiyama
Publikováno v:
AIP Advances, Vol 12, Iss 5, Pp 055323-055323-12 (2022)
A desktop-type air curtain system (DACS) capable of being installed on a desk to protect healthcare workers from infectious diseases was developed. Pseudo-exhaled air containing aerosol particles emitted from a mannequin was blown toward the air curt
Externí odkaz:
https://doaj.org/article/0e9e2241865341dd80184a0326b7bad2
Publikováno v:
Journal of Fluid Science and Technology, Vol 15, Iss 3, Pp JFST0019-JFST0019 (2020)
The characteristics of a fine-bubble plume passing through two tandem cylinders are investigated. Fine-bubbles with a mean diameter of 0.055 mm are released by water electrolysis from electrodes placed at the bottom of a tank. They induce an upward w
Externí odkaz:
https://doaj.org/article/eb1c9dda339140ad9e1864de6f6b7a43
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 887, Pp 20-00181-20-00181 (2020)
The flow and performance of a rotor of a Savonius hydraulic turbine provided with a shield plate were analyzed by the two-dimensional simulations. The rotor diameter DR is 142 mm, and the Reynolds number based on the velocity of the main flow U0, U0D
Externí odkaz:
https://doaj.org/article/6a9789be08114a54a3d07493b30f126b