| P-4-74 |
Izumi, T., M. Fujihara, J. Takeuchi and T. Kawachi; An Inverse Modeling to Estimate Unsaturated Hydraulic Conductivity in Mixed Form Richards Equation, 2010 Jeju INWEPF-PAWEES Joint Symposium and Steering Meeting, Oct. 27-29, ICC Jeju, Korea, pp.2-2-1/1-4 , 2010 |
| P-4-73 |
Takeuchi, J., C. Imagawa, T. Kawachi, K. Unami, S. Maeda and T. Izumi; A refined hy-dro-environmental watershed model with field-plot-scale resolution, Paddy and Water Environment, Vol.8, No.2, pp.175-187, 2010 (DOI; 10.1007/s10333-010-01964) |
| P-4-72 |
Takeuchi, J., T. Kawachi, C. Imagawa, N. Buma, K. Unami and S. Maeda; A Physically based FVM watershed model fully coupling surface and subsurface flows, Paddy and Water Environment, Vol.8, No.2, pp.145-156, 2010 (DOI; 10.1007/s10333-009-0193-7) |
| P-4-71 |
Unami, K., T. Ishida, T. Kawachi, S. Maeda and J. Takeuchi; A stochastic model for behavior of fish ascending an agricultural drainage system, Paddy and Water Environment, Vol.8, No.2, pp.105-111, 2010 (DOI; 10.1007/s10333-009-0189-3) |
| P-4-70 |
Maeda, S., T. Kawachi, K. Unami, J. Takeuchi and E. Ichion; Controlling wasteloads from point and nonpoint sources to river system by GIS-aided Epsilon Robust Optimization model, Journal of Hydro-environmental Research, 4, pp.27-36, 2010 (DOI; 10.1016/j.jher.2009.04.002) |
| P-4-69 |
Unami, K., T. Izumi, C. Imagawa, T. Kawachi, S. Maeda and J. Takeuchi; Infiltration Process in Rainfed Rice Field Soil of Ghanaian Inland Valley, Journal of Rainwater Catchment Systems, Vol.15, No.2, pp.17-20, 2010 |
| P-4-68 |
Maeda, S., Y. Kazuki, J. Takeuchi, T. Kawachi, S. Chono and K. Unami; Optimal Allocation of Maximum Allowable Discharged Total Nitrogen Load among Field Plots in Agricultural Watershed, Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 265, pp.23-31, 2010 |
| P-4-67 |
Unami, K., T. Kawachi and A. Miyauchi; Application of Shallow Water Equations Models fro Water Hazards Problems (Invited Paper), International Conference "Water, Environment, Energy and Society"(WEES-200), New Delhi, 12-16, January, 2009 |
| P-4-66 |
Chono, S., S. Maeda, T. Kawachi, K. Unami and J. Takeuchi; Dynamics of Nonpoint Source Pollutant Loadings from Agricultural Watershed, -A Case Study in Paddy-farming Area with 122 Drainage Water Outfalls Exactly Identifiable-, Journal of Rainwater Catchment Systems, Vol.14, No.2, pp.21-28, 2009 |
| P-4-65 |
Unami, K., T. Kawachi, G. Kranjac-Berisavljevic, F. X. Abagale, S. Maeda and J. Takeuchi; Case Study; Hydraulic Modeling of Runoff Processes in Ghanaian Inland Valleys, Journal of Hydraulic Engineering, ASCE, Vol.135, No.7, pp.539-553, 2009 (DOI; 10.1061/(ASCE) HY.1943-7900.0000041) |
| P-4-64 |
Izumi, T., J. Takeuchi, T. Kawachi and M. Fujihara; An Inverse Method to Estimate Unsaturated Hydraulic Conductivity in Seepage Flow in Non-isothermal Soil, Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 264, pp.35-42, 2009 |
| P-4-63 |
Maeda, S., T. Kawachi, K. Unami and J. Takeuchi; Optimal Allocations of Maximum Allowable Load among Influent Rivers; An Application for Strategic Management of Lake Water Quality, Transactions of the Japanese Society of Irrigation, Drainage and Rural Engineering, 264, pp.1-7, 2009 |
| P-4-62 |
Maeda, S., T. Kawachi, K. Unami, J. Takeuchi, T. Izumi and S. Chono; Fuzzy optimization model for integrated management of total nitrogen loads from distributed point and nonpoint sources in watershed, Paddy and Water Environment, Vol.7, No.3, pp.163-175, 2009 (DOI; 10.1007/s10333-009-0160-3) |
| P-4-61 |
Takeuchi, J., T. Kawachi, K. Unami, S. Maeda and T. Izumi; A distributed hydro-environmental watershed model with three-zoned cell profiling, Paddy and Water Environment, Vol.7, No.1, pp.33-43, 2009 (DOI; 10.1007/s10333-008-0142-x) |
| P-4-60 |
Takeuchi, J., T. Izumi, T. Kawachi, K. Unami and S. Maeda; Model-based Optimal Design of Land Use Arrangement for Environmentally Sound Watershed Management, Journal of Rainwater Catchment Systems, Vol.13, No.2, pp.29-33, 2008 |
| P-4-59 |
Izumi, T., J. Takeuchi, T. Kawachi, K. Unami and S. Maeda; An Inverse Method to Estimate Soil Hydraulic Properties in Saturated-unsaturated Groundwater Flow Model, Journal of Rainwater Catchment Systems, Vol.13, No.2, pp.23-28, 2008 |
| P-4-58 |
Zhang, Q., S. Maeda and T. Kawachi; Fuzzy Optimization Model for Allocating Irrigation Water to Paddy Fields, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 249, pp.55-62,2007 |
| P-4-57 |
Maeda, S. and T. Kawachi; Fuzzy Optimization Model for Allocating Allowable Discharged T-N Load to Point and Nonpoint Sources, 32nd Congress of IAHR, International Association of Hydraulic Engineering and Research, Harmonizing the Demands of Art and Nature in Hydraulics, Venice, Italy, Paper_310.pdf, 2007 |
| P-4-56 |
Zhang, Q., S. Maeda and T. Kawachi; Stochastic Multiobjective Optimization Model for Allocating Irrigation Water to Paddy Fields, Paddy and Water Environment, Vol.5, No.2, pp.93-99, 2007 (DOI; 10.1007/s10333-007-0070-1) |
| P-4-55 |
Alam, A. H. Md. B., J. Takeuchi and T. Kawachi; Identification and Uncertainty Assessment of Model Parameters of Distributed Runoff Model Using Baysian Inference, Journal of Rainwater Catchment Systems, Vol.13, No.1, pp.1-10, 2007 |
| P-4-54 |
Takeuchi, J. and T. Kawachi; Optimum Fertilizer Application for Controlling Rainfall/Irrigation-Induced Nitrate Leaching to Groundwater, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 247, pp.1-9,2007 |
| P-4-53 |
Unami, K., T. Kawachi and K. Ishida: A Mathematical Model for Ascending Behavior of Fish in Agricultural Drainage System, 6th International Symposium on Ecohydraulics, Feb. 18-23, New Zealand, 2007, pp.FP-47-50 |
| P-4-52 |
Alam, A. H. Md. B., J. Takeuchi and T. Kawachi; GA-designed Fuzzy Rule-based System for Parameter Estimation of Distributed Rainfall-Runoff Model Considering Various Cell Characteristics, Journal of Rainwater Catchment Systems, Vol.12, No.2, pp.29-38, 2007 |
| P-4-51 |
Unami, K., M. Yangyuoru, T. Kawachi, S. G. K. Adiku and M. Iwaki; Identification of Drifting Rainfall Distribution, Journal of Rainwater Catchment Systems, Vol.12, No.2, pp.23-28, 2007 |
| P-4-50 |
Yangyuoru, M., K. Unami and T. Kawachi; A Prototype Tank Irrigation Scheme with Rainwater Harvesting, International Conference on Rainwater Management for Disaster Mitigation and Sustainable Development, Dec. 4-8 2006, Monbasa, Kenya |
| P-4-49 |
Alam, A. H. Md. B., J. Takeuchi and T. Kawachi; Development of Distributed Rainfall-Runoff Model Incorporating Soil Moisture Model, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 244, pp.29-37, 2006 |
| P-4-48 |
Tsuchihara, T., S. Ishida, M. Imaizumi and T. Kawachi: Integrated Field- and Model-based Study of Hydro-environmental Aspects of a Small, Endangered Wetland in Eastern Hokkaido, Japan, Paddy and Water Environment, Vol.4, No.3, pp.125-137, 2006 |
| P-4-47 |
Shigeya, M., T. Kawachi and Q. Zhang; Grid-based Optimization Model for Allocating Allowable Discharged Total Nitrogen to Point and Nonpoint Sources in Watershed, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, No.242, pp.1-7, 2006 |
| P-4-46 |
Unami, K., T. Kawachi, M. Yangyuoru and K. Ishida; A Finite Volume Scheme for Simulation of Rainwater Harvesting Process, Proc. of 2nd IASTED Conference, Advanced Technology in the Environmental Field, Feb. 6-8, 2006, Lanzarote, Canary Islands, Spain, pp.124-129, 2006 |
| P-4-45 |
土原健雄・中矢哲郎・石田 聡・今泉眞之・河地利彦；釧路湿原チルワツナイ河川流域に分布する湧水の水文・化学特性, 農業土木学会論文集, No.240, pp.35-46, 2006 |
| P-4-44 |
Unami, K. and T. Kawachi; Systematic Assessment of Flood Mitigation in a Tank Irrigated Paddy Fields Area, Paddy and Water Environment, Vol.3, No.4, pp.191-199, December 2005 |
| P-4-43 |
Yoshimoto, S., K. Unami and T. Kawachi; Systematic Approach Evaluating Flood Mitigation Effect of an Irrigation Tank, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, No.239, pp.29-34, 2005 |
| P-4-42 |
Takeuchi, J. and T. Kawachi; Optimal Landuse Arrangement for Environmentally Sound Watershed Management, Proc. of XII World Water Congress on Water for Sustainable Development -Towards Innovative Solutions, 22-25 Nov., IWRA, New Delhi, pp.1-149-158, 2005 |
| P-4-41 |
Maeda, S. and T. Kawachi; Evaluation of River Water Quality Management Level Based on COD-Loads Optimally Allocated to Point and Nonpoint Sources, Proc of XXXII IAHR Congress on Water Engineering for the Future-Choices and Challenges, Korea, Sept. 11-16, pp.2252- 2262, 2005 |
| P-4-40 |
Maeda, S. and T. Kawachi; Optimal Management of Agricultural Wastewaters for Improving River Water Quality, Proc. of PAWEES 2005 International Conference on Management of Paddy and Water Environment for Sustainable Rice Production, Session II: Integrated Water Management, Kyoto, Japan, Sept.7-8, pp.98-104, 2005 |
| P-4-39 |
Kawachi, T., S. Aoyama, M. Yangyuoru, K. Unami, D. Acquah and S. Quarshie.; An Irrigation Tank for Harvesting Rainwater in Semi-arid Savannah Areas -Design and Construction Practices in Ghana/West Africa-, Journal of Rainwater Catchment Systems, Vol.11, No.1, pp.17-24, 2005 |
| P-4-38 |
Zhang, Q., S. Maeda and T. Kawachi; Optimal Allocation of Irrigation Water by Balancing Water Use and Food Production, Journal of Rainwater Catchment Systems, Vol.11, No.1, pp.11-16, 2005 |
| P-4-37 |
土原健雄・吉村雅仁・石田 聡・今泉眞之・河地利彦；破過曲線形状及び分散率からみた亀裂性岩盤の地下水流動特性, 日本地下水学会誌, Vol.47, No.3, pp.309-322, 2005 |
| P-4-36 |
Maruyama, T., T. Kawachi and V. P. Singh; Entropy-based Assessment and Clustering of Potential Water Resources Availability, Journal of Hydrology, Vol.309/1-4, pp.104-113, 2005 (DOI information: 10.1016/j.jhydrol.2004.11.020) |
| P-4-35 |
Unami, K., T. Kawachi and M. Yangyuoru; Optimal Water Management in Small-scale Tank Irrigation Systems, Energy, 30, pp.1419-1428, 2005 |
| P-4-34 |
Fazal, M.A., M. Imaizumi, S. Ishida, T. Kawachi and T. Tsuchihara; Estimating Groundwater Recharge Using the SMAR Conceptual Model Calibrated by Genetic Algorithm, Journal of Hydrology, 303, pp.56-78, 2005 |
| P-4-33 |
Kawachi, T. and S. Maeda; Diagnostic Appraisal of Water Quality and Pollution Control Realities in Yasu River Using GIS-aided Epsilon Robust Optimization Model, Proc. of the Japan Academy, Ser.B, Vol.80, No.8, pp.399-405, 2004 |
| P-4-32 |
Kawachi, T. and S. Maeda; Optimal Management of Waste Loading into a River System with Nonpoint Source Pollutants, Proc. of the Japan Academy, Ser.B, Vol.80, No.8, pp.392-398, 2004 |
| P-4-31 |
Maruyama, T. and T. Kawachi; Entropy Aspects of Runoff and Flow Regulations in a River Basin, Journal of Rainwater Catchment Systems, 10(1), pp.15-19, 2004 |
| P-4-30 |
Xu, Y-Q, K. Unami, T. Kawachi and S. Yoshimoto; Hybrid Runoff Model Using 1-D Richards Equation and Linear Output Generator, Journal of Rainwater Catchment Systems, 9(2), pp.21-24, 2004 |
| P-4-29 |
Kawachi, T., K. Unami, S. Maeda and J. Takeuchi; Management of Water Quality Environment under Uncertainty - Mathematical Modeling and Computational Optimization -, Keynote paper in International Conference on Water and Environment: Planning, Development, Utilization, Conservation, and Management, pp.381-392, 2003 |
| P-4-28 |
Maeda, S. and T. Kawachi; Integrated Management of River Water Quality Under Uncertainty using Optimization Model, Theme B: Urban and Rural Water Systems for Sustainable Development, XXX IAHR Congress, Greece, pp.175-182, 2003 |
| P-4-27 |
Yangyuoru, M., T. Kawachi, K. Unami, S. G. K. Adiku, F. Mawunya and S. Quashie; Comparison of Rainfed and Potential Yields of Maize and Cowpea on the Vertisols of Ghana, Journal of Rainwater Catchment Systems, 9(1), pp. 7-12, 2003 |
| P-4-26 |
Unami, K., Kurata, S., Kawachi, T. and Morishita, K.; Optimal Control of Interconnected Irrigation Tanks System, Journal of Rainwater Catchment Systems, 8(2), pp. 35-39, 2003 |
| P-4-25 |
Fazal, M.D., Imaizumi, M., Ishida, S., Kawachi, T., Tsuchihara, T., Takeuchi, J. and Alam, A. H. B.; Review of Groundwater Nitrate Contamination: Causes, Effects, and Remedies – A Guideline for Efficient Management Strategies -, Journal of Rainwater Catchment Systems, 8(2), pp. 15-33, 2003 |
| P-4-24 |
Ichion, E., K. Hiramatsu, T. Kawachi and K. Kitamura; Identification of Non-point Groundwater Contamination Sources Using an Extended GA, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 225, pp.127-136, 2003 |
| P-4-23 |
Fazal, M.A., M. Imaizumi, S. Ishida, T. Tsuchihara and T. Kawachi; Groundwater Studies and Mitigation Programs for Arsenic Contamination in Bangladesh, Groundwater Engineering, edited by Kono, I, et al., Swets & Zeitlinger, Lisse, pp.271-278, 2003 |
| P-4-22 |
Unami, K. and T. Kawachi; Universal Optimization of Water Quality Management Strategy, Advances in Water Resources, 26, pp.465-472, 2003 |
| P-4-21 |
Xu, Y.-Q., K. Unami and T. Kawachi; Optimal Hydraulic Design of Earth Dam Cross Section Using Saturated-Unsaturated Seepage Flow Model, Advances in Water Resources, 26, pp.1-7, 2003 |
| P-4-20 |
Maruyama, T., T. Kawachi and S. Maeda; Entropy-based Assessments of Monthly Rainfall Variability, Journal of Rainwater Catchment Systems, 8(1), pp. 21-25, 2002 |
| P-4-19 |
Kumar, A., S. Maeda and T. Kawachi; Multiobjective Optimization of Pollutant Loads from Nonpoint Sources in Watershed Considering Surface and Subsurface Flows, Journal of Rainwater Catchment Systems, 8(1), pp. 7-12, 2002 |
| P-4-18 |
Hiramatsu, K., T. Tanaka, T. Kawachi and H. Itagaki; Estimation of Relative Pollutant Loads in a Lake Using Neural Network, Journal of Rainwater Catchment Systems, 8(1), pp. 1-5, 2002 |
| P-4-17 |
Kumar, A., S. Maeda and T. Kawachi; Multiobjective Optimization of Discharged Pollutant Loads from Non-point Sources in Watershed, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 221, pp.65-70, 2002 |
| P-4-16 |
Kumar, A., S. Maeda and T. Kawachi; Optimization Model for Allocation of Pollutant Loads from Non-point Sources in Watershed Using GIS, Advances in Hydraulics and Water Engineering, Vol.II, edited by Guo, J.J., World Scientific, pp.942-946, 2002 |
| P-4-15 |
Unami, K., T. Kawachi and M. Yangyuoru; Optimal Water management in Small-Scale Tank Irrigation Systems, 2002 Dubrovnik Conference on Sustainable Development of Energy, Water and Environmental Systems, SAM-paper 138, pp.1-10, 2002 |
| P-4-14 |
Unami, K., T. Kawachi and S. Terada; H-infinity Control Approach to Sustainable Management of Water Quality in Lake Biwa, 9th International Conference on the Conservation and Management of Lakes, 3C/D-P06, pp.273-276, 2001 |
| P-4-13 |
Kawachi, T., T. Maruyama and V. P. Singh; Rainfall Entropy for Delineation of Water Resources Zones in Japan, Journal of Hydrology, 246, pp.36-44, 2001 |
| P-4-12 |
Unami, K. and T. Kawachi; Robust Control of Irrigation Channel Network System, 1st Asian Regional Conference, ICID, pp.B02-1-B02-11, 2001 |
| P-4-11 |
Hiramatsu, K., E. Ichion, T. Kawachi and J. Takeuchi; ANN and GA Method to Identify the Non-Point Contamination Flux to Groundwater, Water Resources Management (edited by Brebbia, C.A. et al.), WIT Press, pp.291-299, 2001 |
| P-4-10 |
Fazal, M. A., T. Kawachi and E. Ichion; Extent and Severity of Groundwater Arsenic Contamination in Bangladesh, Water International, 26(3), pp.370-379, 2001 |
| P-4-09 |
Fazal, M. A., T. Kawachi and E. Ichion; Validity of the Latest Research Findings on Causes of Groundwater Arsenic Contamination in Bangladesh, Water International, 26(2), pp.380-389, 2001 |
| P-4-08 |
Maeda, S. and T. Kawachi; Epsilon-Constraint Approach for Robust Optimization of Wasteload Allocation in River Systems, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 215, pp.117-124, 2001 |
| P-4-07 |
Kawachi, T., T. Tsuchihara, K. Hiramatsu and E. Ichion; Fuzzy Rule-Based Scheme for Unconfined Density-Dependent Coastal Groundwater Flow Computations, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 215, pp.111-116, 2001 |
| P-4-06 |
Hiramatsu, K., T. Kawachi and E. Ichion; Optimal Design of Pipeline Network System Using GA, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 215, pp.85-91, 2001 |
| P-4-05 |
Ichion, E., K. Hiramatsu, T. Kawachi and K. Kitamura; Estimation of Long-Term Change in Non-Point Contamination Flux to Groundwater Using Genetic Algorithm, Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering, 215, pp.31-39, 2001 |
| P-4-03 |
Kumar, A., S. Maeda and T. Kawachi; Optimal Allocation of Pollutant from Non-Point Sources in Watershed, Journal of Rainwater Catchment Systems, 7(1), pp.1-6, 2001 |
| P-4-02 |
Maeda, S., T. Kawachi, A. Kumar, T. Maruyama and S. Matsumura; GIS-Aided Zoning of Natural Groundwater Recharge Potential in Yasu River Basin, Japan, Journal of Rainwater Catchment Systems, Vol.6, No.2, pp.15-10, 2001 |
| P-4-01 |
Hiramatsu, K., E. Ichion, T. Kawachi and J. Takeuchi; Methods to Identify Non-point Contamination Flux to Groundwater, - Comparison of Properties of ANN, LGA and IGA Methods, Journal of Rainwater Catchment Systems, Vol.6, No.2, pp.1-5, 2001 |
