- 2021 - 2024 Potential site prediction and warning of collapse caused by groundwater
- 2015 - 2018 Development of method for hazard prediction of deep-seated landslide based on stream water chemistry affected by bedrock weathering
- 2015 - 2016 Integrated study on the 2015 eruption at the Kuchinoerabujima volcano
- 2011 - 2014 Potential site prediction and measures of deep-seated landslide in Kyushu, Japan
- 2010 - 2011 General study on the eruption at Shinmoedake volcano, Kirishima, in 2011
- 2006 - 2008 TEST METHODS ON UNSATURATED SOILS & INVESTIGATION METHODS ON UNSATURATED GROUND AND SYNTHESIZED MECHANICS FOR UNSATURATED SOILS
- 2005 - 2007 Change of topography and prediction of sediment disaster after the Chi-chi earthquake in Taiwan
- 2005 - 2007 The mechanism of piping failure and disaster prevention systems
- 2004 - 2006 Potential Site Prediction of Deep-seated Landslide in volcanic area of Southern Kyushu, Japan
- 2000 - 2002 Predicting system of Shirasu slope failure in southern Kyushu
- 1999 - 2002 Runoff characteristics and sediment yield in composite volcanic area
- 1998 - 2000 Prediction of Deep-Seated Landslide Sites on the Basis of Hydrogeomorphological Study
- 1996 - 1998 Studies on the Effects of Volcanic Activity on Runoff
- 1995 - 1997 Preparation of Database for Sediment-Related Disasters in Volcanic Area
- 1994 - 1996 Prediction of potential landslide sites on Shirasu steep slopes applying the landslide periodicity
- 1994 - 1996 A hydrogeomorphological study on landslides and debris flows in volcanic areas
- 1993 - 1995 Effect of volcanic ash on water quality of rainfall, stream and spring water
- 1993 - 1993 平成5年8月豪雨による鹿児島災害の調査研究
- 1992 - 1992 桜島火山灰が雨水・河川水・湧水のpH値に及ぼす影響
- 1992 - 1992 火山を有する流域の水および土砂の流出に関する調査研究
- 1989 - 1991 Prediction of Sediment Yield by Shallow Landslide Based on Landslide Periodicity
- 1990 - 1990 火山噴火が火山体とその周辺域の侵食に及ぼす影響
- 1989 - 1989 流域内の火山砕屑物が流出特性に及ぼす影響の定量化
- 1989 - 1989 桜島火山灰で覆われた地盤の土砂災害に関する基礎的研究
- 1988 - 1988 しらす台地の透水・保水特性と水源地としての役割に関する研究
- 1986 - 1988 Landslide Periodicity and Prediction of Potential Landslide Sites
- 1987 - 1987 しらす斜面崩壊の発生機構に関する研究
- 1986 - 1986 火山噴出物が山地流域の水源かん養機能に果たしている役割に関する研究
- 1986 - 1986 九州山地における土砂災害の消長と広域火山活動に関する研究
- 1985 - 1985 降灰による山地斜面の流出機構の変化に関する研究
- 1981 - 南九州の水文に関する研究
- 1981 - 火山地域における土砂災害に関する研究
- 1981 - 火山地域における崩壊の水文地形学的研究
- 土砂災害発生場の予測に関する研究
- Prediction of sediment disasters sites
- Runoff in Volcanic Area
- Sediment-related Disaster in Volcanic Area
- Hydrogeomorphology in Volcanic Area
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