Výsledky vyhledávání - "Fumihiko Kosaka"

Akademický článek

An influence of nonlinear restoring force characteristics on transient response of a structure supported by rigid link mechanics including nonlinear springs

Autor: Fumihiko KOSAKA, Tsuyoshi INOUE, Kentaro TAKAGI

Publikováno v: Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 832, Pp 15-00390-15-00390 (2015)

The demands for comfort vehicle are getting increased in these years. On the other hand, the demands for the weight reduction for low fuel consumption are also increasing. In order to achieve these demands, the most efficient way is to reduce the inp

Externí odkaz: https://doaj.org/article/f7fae849728e445898319f6a0e3f9c89

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Akademický článek

Reduction of input power to the structure by the configuration of supporting rigid link mechanics

Autor: Fumihiko KOSAKA, Tsuyoshi INOUE, Kentaro TAKAGI

Publikováno v: Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 819, Pp DR0331-DR0331 (2014)

Suspension of a vehicle plays an important role on the vibration insulation mechanism for reducing the structure born road noise. Using a low stiffness suspension bush is one of the typical countermeasure for the vibration insulation, but such a coun

Externí odkaz: https://doaj.org/article/0bb2ecf014c1415c881151fcde7a713b

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Enhanced Activity of Integrated CO2 Capture and Reduction to CH4 under Pressurized Conditions toward Atmospheric CO2 Utilization

Autor: Yanyong Liu, Koji Kuramoto, Hideyuki Takagi, Shih-Yuan Chen, Atsushi Urakawa, Takehisa Mochizuki, Fumihiko Kosaka

Publikováno v: ACS Sustainable Chemistry and Engineering, 9(9)

A desirable process for realizing a low-carbon society is the direct conversion of dilute CO2 from flue gases or air into highly concentrated hydrocarbons without a need for separate CO2 capture and purification processes. In this study, we investiga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64e2982e73f3ffaa2a43ae180dc05bab
https://doi.org/10.1021/acssuschemeng.0c07162

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Thermal management of CO2 methanation with axial staging of active metal concentration in Ni-YSZ tubular catalysts

Autor: Koichi Matsuoka, Toshiaki Yamaguchi, Takehisa Mochizuki, Fumihiko Kosaka, Yuji Ando, Koji Kuramoto, Hideyuki Takagi

Publikováno v: International Journal of Hydrogen Energy. 46:4116-4125

CO2 methanation has attracted considerable interests as a promising approach to productively utilizing CO2 and reducing emissions to realize a low-carbon society. One major difficulty with packed bed reactors for catalyzed CO2 methanation is maintain

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f655fd7b3e0b765d3f70561d404d8f25
https://doi.org/10.1016/j.ijhydene.2020.10.247

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Effect of Ni content on CO2 methanation performance with tubular-structured Ni-YSZ catalysts and optimization of catalytic activity for temperature management in the reactor

Autor: Koichi Matsuoka, Toshiaki Yamaguchi, Hideyuki Takagi, Koji Kuramoto, Yoshinobu Fujishiro, Takehisa Mochizuki, Fumihiko Kosaka, Yuji Ando

Publikováno v: International Journal of Hydrogen Energy. 45:12911-12920

This paper presents high-performance Ni-YSZ tubular catalysts for CO2 methanation prepared by the extrusion molding. We fabricated tubular-shaped Ni-YSZ catalysts with various Ni contents (25–100 wt% NiO) and investigated the effect of Ni content o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::837446c1a560ee02bfed7131a31ade48
https://doi.org/10.1016/j.ijhydene.2020.02.221

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Direct and continuous conversion of flue gas CO2 into green fuels using dual function materials in a circulating fluidized bed system

Autor: Fumihiko Kosaka, Tomone Sasayama, Yanyong Liu, Shih-Yuan Chen, Takehisa Mochizuki, Koichi Matsuoka, Atsushi Urakawa, Koji Kuramoto

Publikováno v: Chemical Engineering Journal. 450

Carbon capture and utilization (CCU) technologies, such as CO2 methanation, generally require energy-intensive CO2 capture and separation processes prior to catalytic CO2 conversion. In contrast, integrated CO2 capture and reduction (CCR) technologie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3ab1168b2ec7f3f976c5a1b289433bd
https://doi.org/10.1016/j.cej.2022.138055

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Novel Sensing Technology for Real-Time Detection of Carbon Deposition on a Solid Catalyst Using the Resonance Frequency Shift of Single-Mode Microwave

Autor: Yuji Ando, Koji Kuramoto, Masateru Nishioka, Toshiyo Fukushima, Koichi Sato, Fumihiko Kosaka

Publikováno v: Industrial & Engineering Chemistry Research. 58:13007-13012

We report a novel approach for the real-time and highly sensitive detection of carbon deposition on solid catalysts using the resonance frequency shift of a single-mode microwave. Using a microwave...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c59c68d46a7cf20b9344d0326ade668
https://doi.org/10.1021/acs.iecr.9b01728

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Evaluation of Microstructural Changes and Performance Degradation in Iron-Based Oxygen Carriers during Redox Cycling for Chemical Looping Systems with Image Analysis

Autor: Hiroyuki Hatano, Yuya Saito, Junichiro Otomo, Fumihiko Kosaka, Noriaki Kikuchi

Publikováno v: Industrial & Engineering Chemistry Research. 57:5529-5538

A coupled analysis of the reaction kinetics and microstructural changes of Fe2O3/Al2O3 oxygen carriers during redox reaction cycles for chemical looping systems was conducted. The microstructural changes in the oxygen carrier particles were investiga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6720d338ff71ca8ac93d823a762167b
https://doi.org/10.1021/acs.iecr.7b04966

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