N
Naoki Nishiyama
Researcher at University of Tsukuba
Publications - 22
Citations - 422
Naoki Nishiyama is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Permeability (earth sciences) & Dissolution. The author has an hindex of 8, co-authored 22 publications receiving 275 citations. Previous affiliations of Naoki Nishiyama include National Institute for Materials Science & Osaka University.
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Journal ArticleDOI
An Explanation of Episodic Tremor and Slow Slip Constrained by Crack-Seal Veins and Viscous Shear in Subduction Mélange
Kohtaro Ujiie,Kohtaro Ujiie,Hanae Saishu,Ake Fagereng,Naoki Nishiyama,Makoto Otsubo,Haruna Masuyama,Hiroyuki Kagi +7 more
TL;DR: In this article, the authors reported that the minimum time interval between low-angle brittle thrusting at near-lithostatic fluid overpressures within viscous shear zones may be explained by frequent release of accumulated strain by ETS.
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Permeability of porous media: Role of the critical pore size
Naoki Nishiyama,Tadashi Yokoyama +1 more
TL;DR: In this paper, the authors determined the critical pore radius, which is the radius of the largest sphere that can freely pass through a porous medium, using the water expulsion method, an experimental technique measuring the pressure at which gas passes through a water-saturated porous medium.
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The Role of Zeolite Structure and Acidity in Catalytic Deoxygenation of Biomass Pyrolysis Vapors
Salman Raza Naqvi,Yoshimitu Uemura,Suzana Yusup,Y Sugiur,Naoki Nishiyama,Muhammad Naqvi,Muhammad Naqvi +6 more
TL;DR: In this article, the role of structure and acidity of zeolites was investigated in catalytic upgrading of paddy husk in a drop-type fixed-bed reactor.
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Does the reactive surface area of sandstone depend on water saturation?—The role of reactive-transport in water film
Naoki Nishiyama,Tadashi Yokoyama +1 more
TL;DR: In this paper, the authors derived a reactive-transport model describing dissolution and diffusion in water film and showed that the solute concentration in a film is a function of the film thickness, diffusion length, dissolution rate of the mineral, equilibrium concentration, and roughness factor.
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Estimation of permeability of sedimentary rocks by applying water-expulsion porosimetry to Katz and Thompson model
Naoki Nishiyama,Tadashi Yokoyama +1 more
TL;DR: In this article, the size distributions and porosities of transport pores of twelve sedimentary rocks were measured by WEP, and the permeabilities calculated by the KT model were compared with those measured using a gas permeameter.