書籍等出版物 Numerical Simulation of Groundwater Flow Using Stable Isotopes of Oxygen and Hydrogen as Natural Tracers, M. Taniguchi and T. Hiyama (eds.) Groundwater as a Key for Adaptation to Changing Climate and Society, Global Environmental Studies , 83-110 Springer 2014 2014 Author:Shinji Nakaya Keywords:Groundwater, Stable Isotope
論文 Spring discharge mechanism along the southeast coast of Yonaguni Island in the southern Ryukyu forearc Journal of Hydrology: Regional Studies,40:101051 2022 Author:Tomohiro Toki, Hina Kataoka, Ryogo Takada, Shinji Nakaya, Syogo Oshima, Akira Ijiri Keywords:Yonaguni Island, Spring water, Discharging mechanism, Seawater influence, Apparent residence time
Detection of dynamic biofouling from adenosine triphosphate
measurements in water concentrated from reverse osmosis desalination
of seawater Desalination,518:115286 2021(Dec.) Author:Shinji Nakaya, Aiko Yamamoto, Takuma Kawanishi, Noriyuki Toya, Hiroki Miyakawa, Kenji Takeuchi, Morinobu Endo Keywords:Biofouling, Seawater, Reverse osmosis, Adenosine triphosphate, Biofilm
Simple method for estimating well yield potential through geostatistical approach in fractured crystalline rock formations Journal of Hydrology,(597):125719 2021(Jun.) Author:Hiroyuki Nakayama, Yasumasa Yamasaki, Kengo Ohashi, Shinji Nakaya Keywords:Tanzania, Tabora region, groundwater resources, well yield potential
Pore structure evaluation of Quaternary highly vuggy limestone by a combination of X‐ray CT images of differently sized core Rock Mechanics and Rock Engineering,54:1919–1936 2021(Feb. 03) Author:Kentaro Masuoka, Shinji Nakaya Keywords:X-ray computed tomography, Ryukyu limestone, Pore structure, Binary fractal, Quaternary stratum, Atoll limestone
Open-Source Portable Device for the Determination of Fluoride in Drinking Water ACS Sensors,6(1):259-266 2021(Jan.) Author:Eugenio H. Otal, Manuela Leticia Kim, Steffen Dietrich, Ryogo Takada, Shinji Nakaya, and Mutsumi Kimura
Evaluation of Recharge Areas of Arusha Aquifer, Northern Tanzania: Application of Water Isotope Tracers Hydrology Research,51(6):1490–1505 2020(Oct. 21) Author:Innocent Lugodisha, Hans C. Komakech, Shinji Nakaya, Ryogo Takada, Junichi Yoshitani, Jun Yasumoto Keywords:Altitude effect, Arusha aquifer, groundwater, isotopes, recharge area, Tanzania
Hydrochemical Behavior of an Underground Dammed Limestone Aquifer in the Subtropics Hydrological Processes,(32):3529-3546 2018(Sep. 04) Author:Shinji Nakaya, Jun Yasumoto, Phan Min Ha, Hideto Aoki, Fumiya Kohara, Harue Masuda, Kentaroh Masuoka Keywords:Limestone aquifer; Dissolution; CO2 storage; Underground dam; Okinawa Island
Forms of trace arsenic, cesium, cadmium, and lead transported into river water for the irrigation of Japanese paddy rice fields Journal of Hydrology,(561):335-347 2018(Apr. 07) Author:Shinji Nakaya , Hai Chi, Kengo Muroda, Harue Masuda Keywords:toxic trace elements, arsenic, cesium, river, paddy rice
Spatial variations of tritium concentrations in groundwater collected in the southern coastal region of Fukushima, Japan, after the nuclear accident SCIENTIFIC REPORTS, 7: 12578 | DOI:10.1038/s41598-017-12840-3 2017(Oct. 03) Author:Koki Kashiwaya, Yuta Muto, Taiki Kubo, Reo Ikawa, Shinji Nakaya, Katsuaki Koike & Atsunao Marui Keywords:nuclear accident, tritium, groundwater, Fukushima
Longtime behavior of cesium (Cs) in natural spring drinking water Sustainability of Water Quality and Ecology,6:20-30 2015(Sep.) Author:Shinji Nakaya, Hoang Minh Ha Phan, Yoshiki Iwai, Akihiro Itoh, Hideto Aoki, Takanori Nakano
Effect of Groundwater Flow on Forming Arsenic Contaminated Groundwater in Sonargaon, Bangladesh Journal of Hydrology,409(3-4):724-736 2011 Author:Shinji Nakaya, Haruyasu Natsume, Harue Masuda, Muneki Mitamura, Dipak Kumar Biswas, Ashraf A. Seddique Keywords:Arsenic, Bangladesh, flow path, Groundwater
Mineralogy and geochemistry of shallow sediments of Sonargaon Bangladesh and implications for arsenic dynamics: Focusing on the role of organic matter Applied Geochemistry,26(4):587-599 2011 Author:Seddique, A. A., Masuda, H., Mitamura, M., Shinoda, K., Yamanaka, T., Nakaya, S., Ahmed, K. M.
Hydrological and geochemical constraints on the mechanism of formation of arsenic contaminated groundwater in Sonargaon, Bangladesh Applied Geochemistry,23(11):3155-3176 2008 Author:Itai, T., Masuda, H., Seddique, A.A., Mitamura, M., Maruoka, T., Li, X., Kusakabe, M., Dipak, B.K., Farooqi, A., Yamanaka, T., Nakaya, S., Matsuda, J-i., Ahmed, K.M.
Geological structure of an arsenic-contaminated aquifer at Sonargaon, Bangladesh JOURNAL OF GEOLOGY,116(3):288-302 2008 Author:Mitamura, M; Masuda, H; Itai, TA; Minowa, T; Maruoka, T; Ahmed, KM; Seddique, AA; Biswas, DK; Nakaya, S; Uesugi, K; Kusakabe, M
Percolation conditions in fractured hard rocks: A numerical approach using the three-dimensional binary fractal fracture network (3D-BFFN) model J. Geophys. Res.-SOLID EARTH,112(B12203):doi:10.1029 /2006JB004670 2007 Author:Nakaya, S., and K. Nakamura
Spatial separation of groundwater flow paths from a multi-flow system by a simple mixing model using stable isotopes of oxygenand hydrogen as natural tracers WATER RESOURCES RESEARCH,43(W09404):doi:10.1029 /2006WR005059 2007 Author:Nakaya, S., K. Uesugi, Y. Motodate, I. Ohmiya, H. Komiya, H. Masuda, and M. Kusakabe (2007),
Spatiotemporal variation in b value within the subducting slab prior to the 2003 Tokachi-oki earthquake (M 8.0), Japan J. Geophys. Res.,111(B03311):doi:10.1029 /2005JB003658 2006(Mar.) Author:Nakaya, S
Fractal properties of seismicity in regions affected by large, shallow earthquakes in western Japan: Implications for fault formation processes based on a binary fractal fracture network model J. Geophys. Res.-SOLID EARTH,110(B1):B01310-1-B01310-15 2005(Jan.) Author:Nakaya, S
Field investigation of groundwater contamination on nitric acid in Matsumoto Basin, Nagano, Japan Proceedings of the International Symposium on Groundwater Problems related to Geo-Environment, Okayama, Japan,:387-391 2003 Author:Nakaya S., A. Ikeuchi,I. Ohmiya, H. Komiya, H. Masuda and M. Kusakabe
Percolation conditions in binary fractal fracturenetworks: Applications to rock fractures and active and seismogenic faults JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,108(B7) 2003 Author:Nakaya, S; Yoshida, T; Shioiri, N
Correction to "Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults" by Shinji Nakaya et al. (vol 38, No.8, 10.1029/2001WR000672, 2002) WATER RESOURCES RESEARCH,38(11) 2002(Nov.) Author:Nakaya, S; Yohmei, T; Koike, A; Hirayama, T; Yoden, T; Nishigaki, M
Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults WATER RESOURCES RESEARCH,38(8) 2002(Aug.) Author:Nakaya, S; Yohmei, T; Koike, A; Hirayama, T; Yoden,T; Nishigaki, M
Spatial correlation structure in the three-dimensional permeability field accompanied by shallow faults Proceedings of the International Groundwater Symposium /LBNL, Berkeley, California/USA,:98-102 2002 Author:Nakaya S., T. Yohmei, A. Koike, T. Hirayama, T. Yoden and M. Nishigaki
Temporal variation of multifractal properties of seismicity in the region affected by the mainshock of the October 6, 2000 Western Tottori Prefecture, Japan, earthquake (M=7.3) GEOPHYSICAL RESEARCH LETTERS,29(10):-L30 2002 Author:Nakaya, S; Hashimoto, T
An estimation of flow channels in a natural rock using fractal of fractures Proceedings of the tenth International conference on Computer methods and advances in geomechanics/Arizona/USA,:1801-1804 2001 Author:Nakaya, S., H. Kondoh, M. Nishikuni, and M. Nishigaki
Contrast study on chemical composition of rain water collected in August and December of 1988 at Emei mountain J. Geological Hazards and Environment Prevervation,12(4):17-20 2001 Author:Yanagisawa F., S. Jia, H. Masuda, H. Yang, X. Wan, S. Nakaya, N. Kitada
Chemical characteristics of the rainfall collected inEmeishan in june, 1998 J. Mineral Petrol.,21(4):97-99 2001 Author:Yanagisawa, F., S. Jia, H. Masuda, H. Yang, X. Wan, S. Nakaya, and N. Kitada
Study on a chemical characteristics of aerosol in Emeishan, Sichuan J. Mineral Petrol.,21(4):93-96 2001 Author:Yanagisawa, F., S. Jia, H. Masuda, H. Yang, X. Wan, S. Nakaya, and N. Kitada
An estimation of flow channels in a natural rock using fractal of fractures, 共著, Nakaya, S. 他3名, Proceedings of the tenth International conference on Computer methods and advances in geomechanics/Arizona/USA, pp.1801-1804 (2001). 2001
A geostatistical approach to estimate the groundwater flow path in fractured rocks Proceedings of the 9th International conference on Computer methods and advances in geomechanics/Wuhan/China,:1011-1014 1997 Author:Nakaya, S., A. Koike, M. Horie, T. Hirayama and T. Yoden
Theoretical determination of the three-dimensional hydraulic conductivity tensor of fractured rock masses using geometric data of fractures and the results of the Lugeon-water test Proceedings of the 2nd International Conference on Mechanics of Jointed and Faulted Rock/Vienna/Austria,:381-386 1995 Author:Nakaya, S. and M. Nishigaki
Seismic analysis of the 25 Stone Buddhas Group at Hakone, Japan Rock Mechanics Proceedings of the 35th U.S. Symposium/Univ. of Nevada/Reno,:107-112 1995 Author:Christianson M., J. Itoh and S.Nakaya
A new method for the field measurement to determine the three dimensional hydraulic parameters of a fractured rock mass In Siriwardane H.J., and Zaman M.M. ed. Computer methods and advances in geomechanics, Proceedings of the 8th International conference on Computer methods andadvances ingeomechanics /Morgantown/West Virginia, A.A.BALKEMA : ROTTERDAM,:1609-1614 1994 Author:Nakaya, S. and M. Nishigaki
A new method for the field measurement of three dimensional anisotropic hydraulic conductivities in jointed rock mass using a single-hole In Beer G., Booker J.R. and Carter J.P. ed. Computer methods and advances in geomechanics, Proceedings of the 7th International conference on Computer methods and advances in geomechanics/ Cairns, A.A.BALKEMA :ROTTERDAM,:1577-1582 1991 Author:Nakaya, S., M. Nishigaki, and I. Kohno
Interpretation of concrete top base foundation behaviour on soft ground by coupled stress flow finite element analysis Proceedings of the 6th International Conference on Numerical Methods in Geomechanics: Innsbruck,:625-630 1988 Author:Arai K., Y. Ohnishi, M. Horita, I. Yasukawa, and S. Nakaya
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