Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Hosei Nagano"'
Autor:
Ravi Gautam, Takamasa Hirai, Abdulkareem Alasli, Hosei Nagano, Tadakatsu Ohkubo, Ken-ichi Uchida, Hossein Sepehri-Amin
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Functional materials such as magnetic, thermoelectric, and battery materials have been revolutionized through nanostructure engineering. However, spin caloritronics, an advancing field based on spintronics and thermoelectrics with fundamenta
Externí odkaz:
https://doaj.org/article/058025a146d94d3995cf9414c216234d
Autor:
Ryohei Fujita, Natsuko Kudo, Shun Abe, M. J. Mohammad Fikry, Jun Koyanagi, Shinji Ogihara, Hosei Nagano
Publikováno v:
Engineering Proceedings, Vol 51, Iss 1, p 34 (2023)
In this study, we proposed a non-destructive testing and evaluation (NDT&E) method for assessing the micro-scale fatigue damage of carbon-fiber-reinforced plastic (CFRP) structures. The process involves evaluating the thermophysical properties of the
Externí odkaz:
https://doaj.org/article/5357e8edbb4946c493d3fa8bd5c03a25
Publikováno v:
Science and Technology of Advanced Materials: Methods, Vol 1, Iss 1, Pp 162-168 (2021)
We demonstrate a method for the simultaneous determination of the thermoelectric figure of merit of multiple martials by means of the lock-in thermography (LIT) technique. This method is based on the thermal analyses of the transient temperature dist
Externí odkaz:
https://doaj.org/article/25b3a3d68e5b48c7b5a881d430ee8b32
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 86, Iss 890, Pp 20-00156-20-00156 (2020)
In this study, a novel nondestructive evaluation method is proposed to investigate the fiber orientation distribution of discontinuous Carbon Fiber Reinforced Plastic (CFRP). The main concept is based on measuring thermal diffusivity distribution sin
Externí odkaz:
https://doaj.org/article/b263e104d580424da6f33d7439acf800
Autor:
Akira TSUJI, Hosei NAGANO
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 847, Pp 16-00296-16-00296 (2017)
Measurement of thermal conductivity for anisotropic material is difficult or troublesome for conventional measurement techniques. Then periodic heating method using lock-in thermography was proposed as a convenient measurement technique. In this pape
Externí odkaz:
https://doaj.org/article/81193455db354dfb8e649b70f564ea0c
Publikováno v:
Proceedings, Vol 27, Iss 1, p 42 (2019)
This paper proposes a new thermal contact resistance measurement method using lock-in thermography. By the lock-in thermography with an infrared microscope, the dynamic temperature behavior across the contact interface was visualized in the sample si
Externí odkaz:
https://doaj.org/article/c6843b6dc37f41c2a6c135cb5444032b
Publikováno v:
Journal of Thermal Science and Technology, Vol 3, Iss 2, Pp 355-367 (2008)
This paper describes thermal performance of a small loop heat pipe device in an atmospheric condition. A comprehensive test program including start-up, power step up, power cycle and low power tests was performed. The effects of gravity on start-up a
Externí odkaz:
https://doaj.org/article/e417a52b13014392822509c53865b6cb
Autor:
Xinyu CHANG, Hosei NAGANO
Publikováno v:
Journal of Thermal Science and Technology, Vol 10, Iss 2, Pp JTST0021-JTST0021 (2015)
In this study, mathematical models of multiple evaporators and condensers loop heat pipes (MLHP) were established, and several tests were conducted to identify the operating characteristics of MLHP. Flow regulators that can regulate the mass flow rat
Externí odkaz:
https://doaj.org/article/d45ae11e1df548fd916ea499e194e3ae
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 827, Pp 15-00104-15-00104 (2015)
Loop Heat Pipes (LHPs) have been used in thermal control of spacecraft as next generation heat transport devices. Recently, multiple-evaporators LHP (MLHP) is under studied since the MLHP supplies autonomous thermal control function. However, some ph
Externí odkaz:
https://doaj.org/article/97439a602c824b958e17a3e482b2e1da
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 815, Pp TEP0199-TEP0199 (2014)
A lunar long duration method which utilizes a characteristic of a very low thermal conductivity of lunar regolith has been proposed. The principle of this method is to put heater in desired depth of the regolith and heat up the regolith layer during
Externí odkaz:
https://doaj.org/article/6d21a0c19d9548039eb2cf86a406109c