FUJIHARA Masayuki

J-GLOBAL         Last updated: Jun 20, 2019 at 21:32
 
Avatar
Name
FUJIHARA Masayuki
Affiliation
Kyoto University
Section
Graduate School of Agriculture Division of Environmental Science and Technology
ORCID ID
0000-0001-6868-0143

Academic & Professional Experience

 
2012
   
 
Professor, Graduate School of Agriculture, Kyoto University
 
Jun 1998
 - 
May 1999
Academic Visitor, Department of Engineering Science, University of Oxford
 

Education

 
 
 - 
1989
Graduate School, Division of Agriculture, Kyoto University
 
 
 - 
1987
Faculty of Agriculture, Kyoto University
 

Committee Memberships

 
2004
   
 
Japan Rainwater Catchment Systems Association  Chief Editor
 
2001
 - 
2003
Japan Rainwater Catchment Systems Association  
 
2005
 - 
2005
Japan Rainwater Catchment Systems Association  
 
2001
   
 
Japan Rainwater Catchment Systems Association  Exective
 

Published Papers

 
EVALUATION OF DRAINAGE PROCESS IN POROUS MEDIA BY INVADED PERCOLATION PROBABILITY
Junichiro Takeuchi and Masayuki Fujihara
International Journal of GEOMATE   17(59) 90-97   Jul 2019   [Refereed]
Prototype and model of solar driven desalination plant in arid environment
Unami Koichi, Mohawesh Osama, and Masayuki Fujihara
Thermal Science      2019   [Refereed]
Spatial distribution of spawning redds and larvae of Rhinobius flumineus in relation to hydrogeomorphological characteristics in Kamo River, Japan
Kohei Yokota, Yasuhiro Takemon, and Masayuki Fujihara
Paddy and Water Environment   17(3)    2019   [Refereed]
Flood damage assessment on rice crop in the Stung Sen River Basin of Cambodia
Sarit Chung, Junichiro Takeuchi, Masayuki Fujihara, Chantha Qeurng
Paddy and Water Environment   17(2) 255-263   2019   [Refereed]
Temporal and spatial change in phosphate-phosphorus concentration and modeling with land-use variation in Sengari reservoir basin, Japan
Baobab Kibet Kimengich, Junichiro Takeuchi, Keitaro Goto, and Masayuki Fujihara
Paddy and Water Environment   17(2) 131-139   2019   [Refereed]
Analysis and computation of probability density functions for 1 1-D impulsively controlled diffusion process
Yuta Yaegashi, Hidekazu Yoshioka, Kentaro Tsugihashi, and Masayuki Fujihara
Comptes rendus – Mathématique   357 306-315   2019   [Refereed]
Dynamic decision-making model for stochastic population management with scheduled inspections
Yoshioka Hidekazu, Yaegashi Yuta, Yoshioka Yumi, Hamagami Kunihiko, Fujihara Masayuki and Tsugihashi Kentaro
2018 Joint 10th International Conference on Soft Computing and Intelligent Systems and 19th International Symposium on Advanced Intelligent Systems (SCIS&ISIS2018)   1283-1288   Dec 2018   [Refereed]
Observation and Modeling of Phosphorus Runoff Loads from Sengari Reservoir Basin
Junichiro Takeuchi, Keitaro Goto, Baobab K. Kimengich, and Masayuki Fujihara
Proceedings of 17th World Lake Conference   525-527   Oct 2018   [Refereed]
Phosphorus Runoff Loads from Paddy Fields and Forested Watersheds in Sengari Reservoir Basin
Masayuki Fujihara, Koichi Unami, Junichiro Takeuchi, Mayuko Ohishi, Keiko Hashimoto, Hironobu Ueshiro, Taketoshi Shimizu, and Takuya Oda
Proceedings of 17th World Lake Conference   522-524   Oct 2018   [Refereed]
A non-local description of upstream fish migration: linkage between school shape and migration dynamics
Yoshioka Hidekazu, Izumi Tomoki, and Fujihara Masayuki
Proceedings of ISE2018 (International Symposium on Ecohydraulics   S5-8-3   Aug 2018   [Refereed]
Impulse and singular stochastic control approaches for population management of a fish-eating bird
Yaegashi Yuta, Yoshioka Hidekazu, Unami Koichi., and Fujihara Masayuk
New Trends in Emerging Complex Real Life Problems, New Trends in Emerging Complex Real Life Problems   493-500   2018   [Refereed]
A Stochastic Impulse Control Model for Population Management of Fish-Eating Bird Phalacrocorax Carbo and Its Numerical Computation
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Communications in Computer and Information Science   946 425-438   2018   [Refereed]
Wise-Use of Sediment for River Restoration: Numerical Approach via HJBQVI
Hidekazu Yoshioka, Yuta Yaegashi, Yumi Toshioka, Kunihiko Yamagami, and Masayuki Fujihara
Communications in Computer and Information Science   946 272-285   2018   [Refereed]
An optimal allocation model to release fish into a river system
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchement Systems,   24(1) 33-36   2018   [Refereed]
Holistic water quality dynamics in rural artificial shallow water bodies
Abul Hasan Md Badiul Alam, Koichi Unami, and Masayuki Fujihara
Journal of Environmental Management   223 676-684   2018   [Refereed]
A singular stochastic control model for sustainable population management of the fihs-eating water fowl Phalacrocorax carbo
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Environmental Management   219 18-27   2018   [Refereed]
Active water quality management in rural small watersheds
Unami, Koichi, Mabaya, Goden, Alam, AHMB, and Fujihara, Masayuki
Environmental Pollution   419-428   2018   [Refereed]
Applicability of SWAT Model for Streamflow Simulation in a Hihgly Managed Agricultural Watershed – Case Study: Yasu River Basin, Japan-
Kimengich Baobab Kibet, Junichiro Takeuchi and Masayuki Fujihara
Journal of Rainwater Catchment Systems   23(2) 19-27   2018   [Refereed]
A two-variable stochastic singular control model for management of fishery resources under predation
Yaegashi, Yuta, Yoshioka, Hidekazu, Unami Koichi, and Fujihara Masayuk
Proceedings of the 36th JSST Annual International Conference on Simulation Technology   198-201   Oct 2017   [Refereed]
Stability of Water Quality Dynamics in Artificial Shallow Water Bodies
Alam, AHMB., Unami, Koichi, and Fujihara, Masayuki
12th Conference on SDEWES (Sustainable Development of Energy, Water and Environment Systems)   1-11   Oct 2017   [Refereed]
Consideration on Behavior of Displacement of Immiscible Fluids in Porous Media Using Percolation Theory
Takeuchi, Junichiro, Shimizu, Masatoshi, Iwama, Kenji, and Fujihara, Masayuki
12th Conference on SDEWES (Sustainable Development of Energy, Water and Environment Systems)   1-11   Oct 2017   [Refereed]
Optimal policy of predator suppression for sustainable inland fishery management,
Yaegashi, Yuta., Yoshioka, Hidekazu, Unami Koichi, and Fujihara, Masayuki
12th Conference on SDEWES (Sustainable Development of Energy, Water and Environment Systems)   1-11   Oct 2017   [Refereed]
Numerical Investigation of Effects of Species Specific Characteristics on Community Dynamics Affected by Stream Drying in Rivers with Pools as Refugia
YOKOTA Kohei and FUJIHARA Masayuki
Journal of Rainwater Catchment Systems   23(1) 19-26   Jul 2017   [Refereed]
Optimal Installation of Overhead Lines (Tegusu) to Reduce Predation from Piscivorous Birds to Plecoglossus altivelis (Ayu) Taking into Account of Its Decaying Protection Effec
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   23(1) 13-18   Jul 2017   [Refereed]
Stochastic control of fishery resources using dynamical models for local behaviour and global population
YOSHIOKA Hidekazu, YAEGASHI Yuta, UNAMI Koichi and FUJIHAR Masayuki
RIMS Kôkyûroku   2028 134-147   May 2017
Effects of Infilling a Sea Caldron on Tidal Current and Seaweed and Seagrass Bed Habitats
Tomoki Izumi, Toshiaki Kitada, Takaaki Kanabuchi and Masayuki Fujihara
Journal of Rainwater Catchment Systems   22(2) 1-7   Jan 2017   [Refereed]
EVALUATION OF IMBIBITION PROCESS IN POROUS MEDIA BY INVADED PERCOLATION PROBABILITY
Junichiro Takeuchi and Masayuki Fujihara
International Journal of GEOMATE   14(46) 1-7   2017   [Refereed]
An optimal management strategy for stochastic population dynamics of released Plecoglossus altivelis in rivers
Yaegashi, Yuta., Yoshioka Hidekazu., Unami Koichi, and Fujihara MasayukFUJIHARA Masayuki
International Journal of Modeling, Simulation, and Scientific Computing   8(2) 1-16   2017   [Refereed]
Goden Mabaya, Koichi Unami and Masayuki Fujihara
Journal of Cleaner Production   146 37-46   2017   [Refereed]
Robust optimal model for sustainable joint production of green tea and paddy rice in Japanese agricultural watersheds
Mabaya G, Unami K, Takeuchi J, Fujihara M, Yoshioka H
International Journal of Innovation and Sustainable Development   11(1) 69-84   2017   [Refereed]
Computational Approaches to Eco-hydraulics of Fishways
Masayuki Fujihara, Mai Akimoto, Koichi Unami and Junichiro Takeuchi
International Conference on Emerging technologies in Agricultural and Food Engineering (ETAE2016),   482-493   Dec 2016   [Refereed]
Optimal Strategies for Harvesting and Predator Extermination to Sustain Plecoglossus altivelis (Ayu) Population in Stochastic River Environment
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Journal of Rainwater Catchment Systems   22(1) 7-13   Jul 2016   [Refereed]
Effect of Capillary Radius Distribution on the Hydraulic Properties of Porous Media
Junichiro Takeuchi, Hidetaka Tsuji and Masayuki Fujihara
PRECISION FERMING AND RESOURCES MANAGEMENT   292-304   2016   [Refereed]
Modelling of Permeability of Porous media with Mixed Wettabilities Based on Noncircular Capillaries
Junichiro Takeuchi, Hidetaka Tsuji and Masayuki Fujihara
Proceedings of Second International Conference on Science, Engineering & Environment   770-776   2016   [Refereed]
Designing and modeling on-farm desalination system using dew collection technology
Mohawesh O, Unami K, Fujihara M
eProceedings of 3rd International Conference on Agricultural and Food Engineering (CAFEi2016)   135-141   2016   [Refereed]
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Communications in Computer and Information Science   603 91-101   2016   [Refereed]
Hidekazu Yoshioka, Yuta Yaegashi, Koichi Unami, Masayuki Fujihara
Communications in Computer and Information Science   645 190-200   2016   [Refereed]
NUMERICAL ANALYSES ON OCCURRENCE OF THERMAL CONVECTION IN A FLOWING SHALLOW GROUNDWATER
Junichiro Takeuchi, Makoto Kawabata, and Masayuki Fujihara
International Journal of GEOMATE   11(27) 2688-2694   2016   [Refereed]
ESTIMATION OF PERMEABILITY OF POROUS MEDIA WITH MIXED WETTABILITIES USING PORE-NETWORK MODEL
Junichiro Takeuchi, Wataru Sumii, Hidetaka Tsuji, and Masayuki Fujihara
International Journal of GEOMATE   11(24) 2241-2247   2016   [Refereed]
MODELING OF FLUID INTRUSION INTO POROUS MEDIA WITH MIXED WETTABILITIES USING PORE NETWORK
Junichiro Takeuchi, Wataru Sumii and Masayuki Fujihara
International Journal of GEOMATE   10(22) 1971-1977   2016   [Refereed]
Erfaneh Sharifi, Koichi Unami, Macarius Yangyuoru, and Masayuki Fujihara
Stochastic Environmental Research and Risk Assessment   30 1503-1514   2016   [Refereed]
Hidekazu YOSHIOKA, Yuta YAEGASHI, Koichi UNAMI, and Masayuki FUJIHARA
Journal of Japan Society of Civil Engineering, Ser.B1 (Hydraulic Engineering)   72(4) I_1147-I_1152   2016   [Refereed]
Goden Mabaya, Koichi Unami, Hidekazu Yoshioka, Junichiro Takeuchi, and Masayuki Fujihara
Paddy and Water Environment   14(1) 247-258   2016   [Refereed]
Tadasuke Nakamichi, Koichi Unami and Masayuki Fujihara
Jurnal Teknologi   78(1-2) 15-20   2016   [Refereed]
吉武 美孝, 藤原 正幸, 小林 範之
水土の知 : 農業農村工学会誌   83(12) 1039-1044   Dec 2015   [Refereed]
KANAGUCHI Takaaki, IZUMI Tomoki, FUJIHARA Masayuki
水産工学   52(2) 95-101   Nov 2015   [Refereed]
There are some sea caldrons in Seto Inland Sea, Japan, whose bottom is formed by muddy sediment and thus which has low productivity of fisheries. A construction of fishing ground by filling the caldrons is proposed as one of the countermeasures. I...
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
計算工学講演会論文集(CD-ROM)   20 ROMBUNNO.F-9-3   Jun 2015   [Refereed]
Unami Koichi, Fujihara Masayuki, Yoshioka Hidekazu
RIMS Kokyuroku   1952 63-68   Jun 2015
Yoshioka Hidekazu, Takagi Kenji, Unami Koichi, Fujihara Masayuki
RIMS Kokyuroku   1952 55-62   Jun 2015
UNAMI Koichi, MOHAWESH Osama, SHARIFI Erfaneh, TAKEUCHI Junichiro, FUJIHARA Masayuki
J Clean Prod   88 185-195   Feb 2015   [Refereed]
Yoshioka Hidekazu, Unami Koichi, Fujihara Masayuki
Applied Mathematical Modelling   39(1) 205-229   Jan 2015   [Refereed]
This paper develops a new numerical scheme for flash floods based on the one-dimensional shallow water equations in channel networks, referred to as the dual finite volume method (DFVM) scheme. The scheme uses an upwind spatial discretization base...
Makoto Kawabata, Junichiro Takeuchi and Masayuki Fujihara
Jurnal Teknologi   76(15) 7-12   2015   [Refereed]
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))   71(2) I_149-I_160   2015   [Refereed]
A numerical method for solving 1-D time-independent Hamilton-Jacobi-Bellman equations, which are referred to as 1-D HJBEs, is presented and applied to test cases for assessing its computational performance. An HJBE in this paper is a nonconservati...
YAEGASHI Yuta, YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))   71(2) 223-234   2015   [Refereed]
This paper proposes and validates a numerical method based on the unconditionally stable dual-finite volume (DFV) scheme for Kolmogorov's forward equations (KFEs) in 1-D unbounded domains, which can be optionally equipped with a mass-conservative ...
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
Theoretical and Applied Mechanics   63 117-126   2015   [Refereed]
Advection-dispersion phenomena in 1-D open channels are described with a diffusion process model governing Lagrangian particle dynamics. The objective of this paper is to propose a new diffusion process model for analysing advection-dispersion phe...
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
J Adv Simul Sci Eng (Web)   2(2) 291   2015   [Refereed]
Shallow water flows in multiply connected open channel network are frequently encountered in hydro-environmental problems. Simulating such flows practically reduces to solving the 1-D shallow water equations (1-D SWEs) in locally 1-D open channel ...
1-D Shallow Water Models for Dam Break Flash Floods with Different Junction and Bend Treatments
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Proceedings of the 14th International Conference on Systems Simulation, AsiaSim 2014, CCIS (Communications in Computer and Information Science 474)   201-215   Dec 2014   [Refereed]
Hidekazu YOSHIOKA, Koichi UNAMI, and Masayuki FUJIHARA
70(2) I_265-I_276   Dec 2014   [Refereed]
Simulation of Water Flows in an Agricultural Drainage System with Hydraulic Structures
Nobuyuki Kinjo, Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Proceedings of 2013 IAHR (International Association for Hydro-environmental engineering and Research) World Congress, A10717.      Sep 2014   [Refereed]
Robust Optimal Policy of Agriculture Drainage Water from Tea Plantation to Paddy Field
G. Mabaya, K. Unami, H. Yoshioka, J. Takeuchi and M. Fujihara
Proceeding of the 9th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES)   0025-1-12   Sep 2014   [Refereed]
Numerical Investigation of Seaweed Expansion by Constructing Grounds on a Filled Sea Caldron
T. Izumi, T. Kanaguchi and M. Fujihara
Proceedings of ICHE2014 (Internationl Conference on Hydroscience and Engineering)   853-858   Sep 2014   [Refereed]
Erfaneh Sharifi, Koichi Unami, and Masayuki Fujihara
Uncertainty and Risk, ASCE 2014   1994-2001   Jul 2014   [Refereed]
Temporal Discretization Algorithms for the Continuity Equation of the One-dimensional Shallow Water Model
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   20(1) 11-18   Jul 2014   [Refereed]
An Extended Mathematical Model for Shallow Water Flows in Vegetated Open Channels
Hidekazu Yoshioka, Ayaka Wakazono, Nobuhiko Kinjo, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   20(1) 29-35   Jul 2014   [Refereed]
A 2-D Combined Shallow Water and Kolmogorov’s Equations Approach to Assess Purification Ability of a Freshwater Lagoon Associated with Lake Biwa
Kenji Takagi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
COMPSAFE 2014 (Computational Engineering and Science for Safety and Environmental Problems)   237-240   Apr 2014   [Refereed]
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)   70(4) I_55-I_60   Mar 2014   [Refereed]
Yoshioka Hidekazu, Unami Koichi, Fujihara Masayuki
International Journal for Numerical Methods in Fluids   75(1) 23-41   Jan 2014   [Refereed]
Analysis of surface water flows is of central importance in understanding and predicting a wide range of water engineering issues. Dynamics of surface water is reasonably well described using the shallow water equations (SWEs) with the hydrostatic...
Application of Two Shallow Water Models to Steady Flow Analysis in a Vegetated Agricultural Drainage Canal
Hidekazu Yoshioka, Nobuyuki Kinjo, Ayaka Wakazono, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems, Vol.19, No.2, pp.35-41.      Jan 2014   [Refereed]
Comparative Numerical Analysis on Momentum Flux Evaluation Schemes for Shallow Water Flows in Open Channel Networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems, Vol.19, No.2, pp.25-33      Jan 2014   [Refereed]
Internal Boundary Conditions for Solute Transport Equations in Locally One-dimensional Open Channel Networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems, Vol.19, No.2, pp.1-9.      Jan 2014   [Refereed]
A HYPERBOLIC LONGITUDINAL DISPERSION MODEL OF CONTAMINANT IN OPEN CHANNEL NETWORKS
Hidekazu Yoshioka, Nobuhiko Kinjo, Goden Mabaya, Koichi Unami and Masayuki Fujihara
Proceedings of the 7th International Symposium on Environmental Hydraulics, pp.159-162.      Jan 2014   [Refereed]
A HYPERBOLIC LONGITUDINAL DISPERSION MODEL OF CONTAMINANT IN OPEN CHANNEL NETWORKS
Hidekazu Yoshioka, Nobuhiko Kinjo, Goden Mabaya, Koichi Unami and Masayuki Fujihara
Proceedings of the 7th International Symposium on Environmental Hydraulics   159-162   Jan 2014   [Refereed]
Internal Boundary Conditions for Solute Transport Equations in Locally One-dimensional Open Channel Networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   19(2) 1-9   Jan 2014   [Refereed]
Comparative Numerical Analysis on Momentum Flux Evaluation Schemes for Shallow Water Flows in Open Channel Networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   19(2) 25-33   Jan 2014   [Refereed]
Application of Two Shallow Water Models to Steady Flow Analysis in a Vegetated Agricultural Drainage Canal
Hidekazu Yoshioka, Nobuhiko Kinjo, Ayaka Wakazono, Koichi Unami and Masayuki Fujihara
Journal of Rainwater Catchment Systems   19(2) 35-41   Jan 2014   [Refereed]
YOSHITAKE Yoshitaka, FUJIHARA Masayuki, KOBAYASHI Noriyuki, NISHIYAMA Tatsuro, IZUMI Tomoki
Journal of the Agricultural Engineering Society, Japan   (279) 29-34   2014   [Refereed]
There were the following typos in the figure, "Irrigation, Drainage and Rural Engineering Journal Vol. 80 (2012) No. 3 p. 261-266"
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
Theoretical and Applied Mechanics   62 131-140   2014   [Refereed]
Flash flooding due to a dam failure brings about catastrophic consequences involving destruction of buildings and loss of human lives. Numerical models based on the 1-D shallow water equations serve as essential tools for effective flood risk anal...
Stochastic Process Model for Water and Solute Dynamics in Agricultural Drainage System
Hidekazu Yoshioka, Ayaka Wakazono, Nobuhiko Kinjo, Koichi Unami and Masayuki Fujihara
COMPSAFE 2014 (Computational Engineering and Science for Safety and Environmental Problems)   233-236   2014   [Refereed]
Sub-Darcy-Scale Modeling of Non-uniform Flow through Porous Media with Mixed Wettabilities
Junichiro Takeuchi, Takuya Takahashi, and Masayuki Fujihara
International Journal of GEOMATE (Geotechnique, Construction Materials and Environment)   6(2) 840-847   2014   [Refereed]
Error analysis of conforming Petrov-Galarkin finite element scheme for parabolic equations on connected graphs
Yoshioka, H., Unami, K., and Fujihara, M.
Proceedings of Computational Engineering Conference   19 E-12-6   2014   [Refereed]
Burgers equation type models on connected graphs and their application to open channel hydraulics
Yoshioka H., Unami K., and Fujihara M
数理解析研究所講究録   (1890) 160-171   2014
Erfaneh Sharifi, Koichi Unami, and Masayuki Fujihara
Vulnerability, Uncertainty and Risk, ASCE 2014   1994-2001   2014   [Refereed]
Sub-Darcy-Scale Modeling of Non-uniform Flow through Porous Media with Mixed Wettabilities,
Junichiro Takeuchi, Takuya Takahashi, and Masayuki Fujihara
Proceedings of the Third International Conference on Geotechnique, Construction Materials and Environment, Vol.3(1), pp.452-457      Nov 2013   [Refereed]
Optimal irrigation strategies in rainwater harvesting systems during dry spells
Koichi Unami, Osama Mohawesh, Erfaneh Sharifi, Junichiro Takeuchi, and Masayuki Fujihara
Proceedings of 8th conference of sustainable development of energy, water and environment systems, 0205-1~0205-13.      Sep 2013   [Refereed]
Application of a Conforming Petrov-Galerkin Finite Element Scheme to Analysis of Longitudinal Dispersion Phenomena in Open Channel Networks
Hidekazu Yoshioka, Nobuyuki Kinjo, Koichi Unami, and Masayuki Fujihara
Proceedings of 2013 IAHR (International Association for Hydro-environmental engineering and Research) World Congress, A10491.      Sep 2013   [Refereed]
Identifying Contribution of Paddy Irrigation to Groundwater Recharge: A Numerical Experiment for Unconfined Aquifer of Dogo Plain, Ehime Prefecture, Japan
Masayuki Fujihara, Tomoki Izumi, Koichi Unami, and Junichiro Takeuchi
Proceedings of 2013 IAHR (International Association for Hydro-environmental engineering and Research) World Congress, A10209.      Sep 2013   [Refereed]
A Hyperbolic Partial Differential Equation Model for Solute Transport Phenomena in Turbulent Flows
Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Proceedings of 2013 IAHR (International Association for Hydro-environmental engineering and Research) World Congress, A11257.      Sep 2013   [Refereed]
YOSHIOKA Hidekazu, KINJO Nobuhiko, UNAMI Koichi, FUJIHARA Masayuki
Journal of applied mechanics   69(2) I_59-I_70   2013   [Refereed]
Numerical resolution of advection-diffusion equations on connected graphs requires careful treatment in implementing internal boundary conditions at junctions. This study proposes a simple conforming Petrov-Galerkin finite element method with comp...
IZUMI Tomoki, FUJIHARA Masayuki, TAKEUCHI Junichiro, KAWACHI Toshihiko
Journal of the Agricultural Engineering Society, Japan   80(6) 471-478   Dec 2012   [Refereed]
An inverse modeling to reproduce a variably saturated water flow in non-isothermal soil based on field observation is proposed. Since the water movement in the surface soil is significantly affected by the soil temperature, the governing equations...
FUJIHARA Masayuki, YAMANAKA Satoshi, IZUMI Tomoki, LAPONG Edward
水産工学   49(2) 85-92   Nov 2012   [Refereed]
Hydraulic structure in vertical slot fishways with 12 designs is numerically investigated and the effect of baffles of the fishways on the hydraulic structure is discussed. The numerical model employed is based on the finite volume method of the s...
Water quality index and statistical analysis methods for water quality characterization in agricultural rivers
Lapong E., Fujihara M., Izumi T., Kobayshi N., Kakihara T. and Hamagami K.
Water Quality 2012, pp.14-18.      Sep 2012   [Refereed]
Yoshitake Yoshitaka, Fujihara Masayuki, Kobayashi Noriyuki, Nishiyama Tatsuro and Izumi Tomoki
Irrigation, Drainage and Rural Engineering Journal, No.279,pp.29-34      Aug 2012   [Refereed]
Regression Analysis and Amelioration Procedures for Suspended Sediment Load Estimation in Agricultural Rivers
Edward R. Lapong, Masayuki Fujihara, Tomoki Izumi, Kunihiko Hamagami, Noriyuki Kobayashi, Toshiko Kakihara
Proceeding of International Conference of Agricultural Engineering, CIGR-AgEng2012.      Jul 2012   [Refereed]
Numerical Investigation on the Effect of Baffles on Flow in Vertical Slot Fishways
Masayuki Fujihara, Satoshi Yamanaka, Tomoki Izumi, Edward R. Lapong
Proceeding of International Conference of Agricultural Engineering, CIGR-AgEng2012.      Jul 2012   [Refereed]
Wind-Induced Flow in a Closed Water Body with Floating Culture System,
Kunihiko Hamagami, Masayuki Fujihara, Ken Mori, Hidekazu Yoshioka
Proceeding of International Conference of Agricultural Engineering, CIGR-AgEng2012.      Jul 2012   [Refereed]
Identification of Free-form Parameterized Soil Hydraulic Properties in Non-isothermal Subsurface Water Flow Using Inverse Technique
Tomoki Izumi, Masayuki Fujihara
Proceeding of International Conference of Agricultural Engineering, CIGR-AgEng2012.      Jul 2012   [Refereed]
Masayuki Fujihara, Noriyuki Kobayashi, Tatsuro Nishiyama, Tomoki Izumi and Yoshitaka Yoshitake
Journal of rainwater catchment systems = 雨水資源化システム学会誌   18(1) 9-13   Jul 2012   [Refereed]
Fujihara Masayuki, Kobayashi Noriyuki, Nishiyama Tatsuro, Izumi Tomoki, Yoshitake Yoshitaka
Journal of rainwater catchment systems   18(1) 9-13   Jul 2012   [Refereed]
This paper investigates applicability of the method determining blanket design length based on the analytical solution proposed by Yoshitake et al. (2011) to smaller embankment dams, and demonstrates its validity to the application of half-size of...
Lapong Edward, Fujihara Masayuki, Izumi Tomoki, Hamagami Kunihiko, Kobayashi Noriyuki, Kakihara Toshiko
Journal of rainwater catchment systems   18(1) 1-8   Jul 2012   [Refereed]
Water quality characterization is important, and often, the first step in watershed water quality management. The characterization activity centers on the quantification of water quality parameters relevant to the monitoring objective and the anal...

Misc

 
Rural Water Management in Small Watersheds
Abul Hasan Md Badiul Alam, Koichi Unami, Masayuki Fujihara
農業農村工学会応用水理研究部会平成28年度応用水理研究部会講演集   32-35   Dec 2016
Mathematical analysis of a primitive dynamic programming problem
Yamato Fujikura, Hidekazu Yoshioka, Koichi Unami, Masayuki Fujihara
農業農村工学会応用水理研究部会平成28年度応用水理研究部会講演集   40-44   Dec 2016
EVALUATION OF WATER MIGRABILITY IN PORE- AND GRAINNETWORKS OF POROUS MEDIA BY PERCOLARION THEORY
Keitaro Hara, Junichiro Takeuchi and Masayuki Fujihara
The 15th PAWEES Conference of Sustainable Paddy Water Management in Water-Energy-Food NEXUS      Oct 2016
An Economical Optimal Management Strategy for Stochastic Population Dynamics of Released Plecoglossus altivelis in River Environment
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
AsiaSim/SCS AutumnSim2016, 2016 International Simulation Multi-Conference   75   Oct 2016
Global Trends in Water-Related Disasters Using Publicly Available Database for Hazard and Risk Assessment
Giriraj Amarnath, Shuhei Yoshimoto, Keitaro Goto, Masayuki Fujihara, Vladimir Smakhtin, Pramod Aggarwal, Shirish Ravan
第24回日本雨水資源化システム学会大会研究発表会講演要旨集   79-82   Oct 2016
Optimal Installation of Overhead Lines Preventing Piscivorous Birds in Stochastic River Environment
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, Masayuki Fujihara:
第24回日本雨水資源化システム学会大会研究発表会講演要旨集   100-103   Oct 2016
Optimal Installation of Overhead Lines with Decaying Protection Effect for Fish from Predators
Hidekazu Yoshioka, Yuta Yaegashi, Koichi Unami, Masayuki Fujihara
第24回日本雨水資源化システム学会大会研究発表会講演要旨集   104-105   Oct 2016
Evaluation of SWAT Hydrological Model for Streamflow Simulation in Yasu River Basin, Japan
Baobab Kimengich, Junichiro Takeuchi, Masayuki Fujihara
2016 SWAT Conference   23   Jul 2016
Finite Element Solution of a Stochastic Control Model for Optimal Population Management Strategy of Released Plecoglossus Altivelis
Yuta Yaegashi, Hidekazu Yoshioka, Kenji Takagi, Koichi Unami, and Masayuki Fujihara
Proceedings of Computational Engineering Conference JSCES   21 F-4-3   May 2016
Precise fertigation using multiply-connected drip tube networks
Bashiri H, Unno Y, Sharifi E, Unami K, Fujihara M
International Water Conference 2016      Mar 2016
Operational rules for micro-dams solving stochastic control problems,
Sharifi E, Unami K, Mohawesh O, Fujihara M
International Water Conference 2016      Mar 2016
SHARIFI Erfaneh, UNAMI Koichi, YOSHIOKA Hidekazu, FUJIHARA Masayuki
日本雨水資源化システム学会研究発表会講演要旨集   23rd 51-52   Oct 2015
YOSHIOKA Hidekazu, YAEGASHI Yuta, UNAMI Koichi, FUJIHARA Masayuki
日本雨水資源化システム学会研究発表会講演要旨集   23rd 127-128   Oct 2015
MABAYA Goden, UNAMI Koichi, FUJIHARA Masayuki
日本雨水資源化システム学会研究発表会講演要旨集   22nd 142-147   Nov 2014
YOSHIOKA Hidekazu, UNAMI Koichi, FUJIHARA Masayuki
日本雨水資源化システム学会研究発表会講演要旨集   22nd 31-36   Nov 2014
UNAMI Koichi, ALAM Abul Hasan Md Badiul, FUJIHARA Masayuki
日本雨水資源化システム学会研究発表会講演要旨集   22nd 5-6   Nov 2014

Conference Activities & Talks

 
Application of an Adaptive Viscosity Scheme to Discretization of the Optimality Equation for a Discrete Costly Observation Problem
Hidekazu Yoshioka, Motoh Tsujimura, Yuta Yaegashi, Tomomi Tanaka, Yumi Yoshioka, Masayuki Fujihara
Computational Engineering Conference, 2019   Jun 2019   
A discrete time dynamic programming problem for a plant growth model with controlled parameters
Koichi Unami, Yamato Fujikura, Meni Arai, and Masayuki Fujihara
Dec 2018   
TEMPORAL AND SPATIAL CHANGE OF PHOSPHATE-PHOSPHORUS CONCENTRATION WITH CORRELATION TO LAND-USE VARIATION IN SENGARI RESERVOIR BASIN, JAPAN,
Kimengichi Baobab Kibet, Junichiro Takeuchi, Keitaro Goto, and Masayuki Fujihara
International Conference Nara 2018 (PAWEES-INWEPF joint conference)   Nov 2018   
SPATIAL DISTRIBUTION OF SPAWNING REDDS AND LARVAE OF RHINOGOBIUS FLUMINEUS IN RELATION TO HYDROGEOMORPHOLOGICAL CHARACTERISTICS IN KAMO RIVER
Kohei Yokota, Yasuhiro Takemon, and Masayuki Fujihara
International Conference Nara 2018 (PAWEES-INWEPF joint conference)   Nov 2018   
CONVERGENCE TO STEADY STATES OF OPEN CHANNEL FLOWS IN A PADDY IRRIGATION CANAL SYSTEM WITH PONDS
Sovanna Mean, Koichi Unami, A.H.M.B. Alam, and Masayuki Fujihara
International Conference Nara 2018 (PAWEES-INWEPF joint conference)   Nov 2018   
FLOOD DAMAGE ASSESSMENT ON RICE CROP IN THE STUNG SEN RIVER BASIN OF CAMBODIA
Sarit Chung, Junichiro Takeuchi, and Masayuki Fujihara
International Conference Nara 2018 (PAWEES-INWEPF joint conference)   Nov 2018   
Optimal control of an irrigated tank during a flood event
Yamato Fujikura, Koichi Unami, Hisashi Okamoto, and Masayuki Fujihara
IMI Joint Research Project Workshop (II), Modeling and Analysis of Time Series Data in Math-Agro Sciences,   Nov 2018   
Imbibition and Drainage Processes in Porous Media from the Perspective of Invaded Percolation Probability,
Junichiro Takeuchi and Masayuki Fujihara
IMI Joint Research Project Workshop (II), Modeling and Analysis of Time Series Data in Math-Agro Sciences,   Nov 2018   
Stochastic optimal inpulse control policy for management of seasonal fish-eating bird population dynamics
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
IMI Joint Research Project Workshop (II), Modeling and Analysis of Time Series Data in Math-Agro Sciences   Nov 2018   
A time-dependent stochastic optimal impulse control model for management of fish-eating bird
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, Masayuki Fujihara
Annual Congress of Japan Rainwater Catchment Systems Association   Nov 2018   
Numerical computation of the coefficients in an exact solution to an impulse control model for optimal population management
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Computational Engineering Conference, 2018   Jun 2018   
Lipschitz continuity of value functions solving a dynamic programming problem for a water storage tank
Koichi Unami, Osama Mohawesh, Yamato Fujikura, Masayuki Fujihara
Dec 2017   
Robust optimal harvesting policy for fish in a pond with price volatility
Elizaphan Otieno Ndede , Koichi Unami , Masayuki Fujihara
Dec 2017   
Application of singular stochastic control theory to fish-eating waterfowl population management
Nov 2017   
Generalization of a singular stochastic control model for optimal suppression strategy of a fish-eating bird population
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Nov 2017   
Optimal Policy of Predator Suppression for Sustainable Inland Fishery Management
Yaegashi, Y., Yoshioka, H., Unami, K. and Fujihara, M.
Conference on Sustainable development of Energy, Water and Environment Systems   Oct 2017   
Stability of Water Quality Dynamics in Artificial Shallow Water Bodies
Alam, A.H.M.B., Unami, K., and Fujihara, M.
Conference on Sustainable development of Energy, Water and Environment Systems   Oct 2017   
Consideration on Behavior of Displacement of Immiscible Fluids in Porous Media Using Percolation Theory
Takeuchi, J., Shimizu, M., and Fujihara, M
Conference on Sustainable development of Energy, Water and Environment Systems   Oct 2017   
Evaluation of SWAT Hydrological Model for Streamflow Simulation in Yasu River Basin, Japan
Kimengich, B. Kibet, Takeuchi, J., and Fujihara M
Aug 2017   
Mathematical analysis of a primitive dynamic programming problem
Yamato Fujikura, Hidekazu Yoshioka, Koichi Unami, Masayuki Fujihara
Dec 2016   
Rural Water Management in Small Watersheds
Abul Hasan Md Badiul Alam, Koichi Unami, Masayuki Fujihara
Dec 2016   
Optimal Installation of Overhead Lines with Decaying Protection Effect for Fish from Predators
Hidekazu Yoshioka, Yuta Yaegashi, Koichi Unami, Masayuki Fujihara
Oct 2016   
Optimal Installation of Overhead Lines Preventing Piscivorous Birds in Stochastic River Environment
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami, Masayuki Fujihara
Oct 2016   
Identification of Water Quality Dynamics in Shallow Ponded Water Bodies
Abul Hasan Md Badiul Alam, Koichi Unami, Masayuki Fujihara
Oct 2016   
Global Trends in Water-Related Disasters Using Publicly Available Database for Hazard and Risk Assessment
Giriraj Amarnath, Shuhei Yoshimoto, Keitaro Goto, Masayuki Fujihara, Vladimir Smakhtin, Pramod Aggarwal, Shirish Ravan
Oct 2016   
An Economical Optimal Management Strategy for Stochastic Population Dynamics of Released Plecoglossus altivelis in River Environment
Yuta Yaegashi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
AsiaSim/SCS AutumnSim2016, 2016 International Simulation Multi-Conference,   Oct 2016   
EVALUATION OF WATER MIGRABILITY IN PORE- AND GRAINNETWORKS OF POROUS MEDIA BY PERCOLARION THEORY
Keitaro Hara, Junichiro Takeuchi and Masayuki Fujihara
The 15th PAWEES Conference of Sustainable Paddy Water Management in Water-Energy-Food NEXUS   Oct 2016   
Evaluation of SWAT Hydrological Model for Streamflow Simulation in Yasu River Basin, Japan
Baobab Kimengich, Junichiro Takeuchi, Masayuki Fujihara
2016 SWAT Conference   Jul 2016   
Active Water Quality Management in Rural Small Watersheds
Koichi Unami, Goden Mabaya, Abul Hasan Md Badiul Alam, and Masayuki Fujihara
International Conference on Water, Environment, Energy and Society   Mar 2016   
Precise fertigation using multiply-connected drip tube networks
Bashiri H, Unno Y, Sharifi E, Unami K, Fujihara M
International Water Conference 2016: Water Resource in Arid Areas: The Way Forward   Mar 2016   
Formulation of stochastic control problems for water harvesting reservoirs
Koichi Unami, Erfaneh Sharifi, Masayuki Fujihara
Dec 2015   
Towards Improved Water Environment Productivity in Japanese Paddy Rice Irrigation Schemes
Goden Mabaya, Koichi Unami, Masayuki Fujihara, Abul Hasan Md Badiul Alam
Dec 2015   
Designing and modeling on-farm desalination system using dew collection technology
Osama Mohawesh, Koichi Unami, Masayuki Fujihara
Dec 2015   
Optimal Migration Strategy of individual Fishes to Minimize the Swimming Cost Based on a Monomial Function
Hidekazu Yoshioka, Yuta Yaegashi, Koichi Unami, Masayuki Fujihara
Oct 2015   
The viscosity solution solving a primitive optimal control problem for an irrigation tank
Erfaneh Sharifi, Koichi Unami, Hidekazu Yoshioka, Masayuki Fujihara
Oct 2015   
Stochastic control of fishery resources using dynamical models for local behaviour and global population
Sep 2015   
A Conforming Finite Element Scheme for Hamilton-Jacobi-Bellman Equations Defined on Connected Graphs
Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Computational Engineering Conference JSCES   Jun 2015   
A Horizontally 2-D Petrov-Galerkin Numerical Model for dvection-Dispersion-Deposition Phenomena in Closed Shallow Water Bodies
Kenji TAKAGI, Hidekazu YOSHIOKA, Koichi UNAMI, and Masayuki FUJIHARA
May 2015   
Petrov-Galerkin Finite Element Schemes for Hamilton-Jacobi-Bellman Equations Complying with Discrete Maximum Principles
Hidekazu YOSHIOKA, Koichi UNAMI, and Masayuki FUJIHARA
May 2015   
Conservative and Adaptive Numerical Schemes for Kolmogorov’s Forward Equations in Unbounded 1-D domains
Yuta YAEGASHI, Hidekazu YOSHIOKA, Koichi UNAMI, and Masayuki FUJIHARA
May 2015   
Optimality of rainfed agriculture in the sense of stochastic control
Erfaneh Sharifi, Koichi Unami, Masayuki Fujihara
Dec 2014   
Wise-use of shallow aquifer to control the growth of farm products
Ryota Kuwano, Koichi Unami and Masayuki Fujihara
Dec 2014   
Towards sustainable joint production of green tea and paddy rice in Japanese agricultural watersheds
Goden Mabaya, Koichi Unami, and Masayuki Fujihara
Nov 2014   
Formulation of a stochastic control problem to verify optimality of rainfed agriculture
Erfaneh Sharifi, Koichi Unami, and Masayuki Fujihara
Nov 2014   
A stochastic process model for ascending behavior of fishes in fishways
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Nov 2014   
Stochastic control of water lifting from a Bangladeshi aquifer
Koichi Unami, Abul Hasan Md. Badiul Alam, and Masayuki Fujihara
Nov 2014   
Despersion processes in fluids flowing in low-head drip fertigation systems
Yusuke Unno, Koichi Unami and Masayuki Fujihara
PAWEES 2014 International Conference   Oct 2014   
Analytical Assessment of Water Purification Ability of Freshwater Lagoons Receiving Agricultural Runoff,
Kenji Takagi, Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
PAWEES 2014 International Conference   Oct 2014   
Hydro-environmental Numerical Modeling in Shallow Waters
FUJIHARA Masayuki
Kyoto University & Taiwan University Symposium 2014   Sep 2014   
Error analysis of conforming Petrov-Galerkin finite element schemes for parabolic equation on connected graphs
Yoshioka H., Unami K., and Fujihara M
Jun 2014   
Stability and error analysis on a conforming Petrov-Galerkin finite element scheme for advection-diffusion-decay type equations on connected graph
Yoshioka H., Unami K., and Fujihara M
May 2014   
Hyperbolic dual finite volume models for shallow water flows in multiply-connected open channel networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
The 27th Computational Fluid Dynamics Symposium   Dec 2013   
Relevant internal boundary conditions for the partial differential equations in locally one-dimensional open channel networks
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Dec 2013   
Singular Parabolic Equations Arising in Environmental Hydraulics and Their Numerical Analyses
Hidekazu Yoshioka, Koichi Unami, and Masayuki Fujihara
Nov 2013   
Burgers equation type models on connected graphs and their application to open channel hydraulics
Hidekazu Yoshioka, Koichi Unami and Masayuki Fujihara
Oct 2013   
Stochastic control of micro rainwater harvesting systems
Misato Ryo, Koichi Unami, and Masayuki Fujihara
Dec 2012   
An autonomous runoff model using stochastic differential equations
Abul Hasan Md Badiul Alam, Misato Ryo, Koichi Unami, and Masayuki Fujihara
Dec 2012   
Optimal strategies for water pumping from shallow aquifer in Bangladeshi floodplain
Ryota Kuwano, Abul Hasan Md Badiul Alam, Koichi Unami, and Masayuki Fujihara
Dec 2012   
A stochastic population dynamics model for sustainability assessment in two adjacent habitats
Yosuke Mibuta, Koichi Unami, Masayuki Fujihara
Dec 2012   
Operational rules for micro-dams solving stochastic control problems
Sharifi E, Unami K, Mohawesh O, Fujihara M
International Water Conference 2016: Water Resource in Arid Areas: The Way Forward   
Finite Element Solution of a Stochastic Control Model for Optimal Population Management Strategy of Released Plecoglossus Altivelis
Yuta Yaegashi, Hidekazu Yoshioka, Kenji Takagi, Koichi Unami, and Masayuki Fujihara
Computational Engineering Conference JSCES   

Works

 
Study on mixing mechanism of upwelling generated by the buttum topography
1988
Study on Water Quality in a Nursery Aquaculture Pond fof Flounders
1990

Research Grants & Projects

 
Numical Modelling of Flow in Fishways