Yuki Kojima

J-GLOBAL         Last updated: Nov 25, 2019 at 18:39
Yuki Kojima
Gifu University
Faculty of Engineering
Job title
Assistant Professor
Ph.D.(Iowa State University)

Research Areas


Academic & Professional Experience

Apr 2016
Assistant Professor, Department of Civil Engineering, Gifu University
Sep 2015
Mar 2016
Research Assistant Professor, Graduate School of Agricultural and Life Sciences, The University of Tokyo
Jun 2015
Mar 2016
Advisor, SenSprout Inc.
Jun 2015
Aug 2015
Project Researcher, Graduate School of Agricultural and Life Sciences, The University of Tokyo


Apr 2003
Mar 2007
Department of Agriculture, School of Agriculture, Meiji University
Apr 2007
Mar 2009
Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo
Aug 2009
May 2015
Department of Agronomy, Iowa State University

Awards & Honors

Oct 2016
Best Paper Award 2016, Japanese Society of Soil Physics
Nov 2014
Research Excellence Award, Iowa State University

Published Papers

Advances in thermo-time domain reflectometry technique: measuring ice content in partially frozen soils
Tian, Z., Y. Kojima, J.L. Heitman, R. Horton, and T. Ren
Methods of Soil Analysis   4 190003   2019   [Refereed]
Bulk density effects on soil hydrologic and thermal characteristics: a numerical investigation
Kojima, Y., J.L. Heitman, M. Sakai, C. Kato, and R. Horton
Hydrol. Process.   32 2203-2216   2018   [Refereed]
Kojima, Y., J.L. Heitman, K. Noborio, T. Ren, and R. Horton
Cold Reg. Sci. Technol.   151 188-195   2018   [Refereed]
Kojima, Y., K. Noborio, M. Mizoguchi, and Y. Kawahara
Agri. Info. Res.   26(4) 77-85   2017   [Refereed]
Tian. Z., T. Ren. Y. Kojima, Y. Lu, R. Horton, and J.L. Heitman
J. Hydrol.   555 786-796   2017   [Refereed]
Noborio, K., Y. Ito, H, He, M. Li, Y. Kojima, H. Hara, and M. Mizoguchi
Paddy and Water Environ.   16(1) 81-87   2017   [Refereed]
A comparison of second-order derivative based models for time domain reflectometry waveform analysis
Wang, Z., R. Schwartz, Y. Kojima, Y. Chen, and R. Horton
Vadose Zone J.   16(7)    2017   [Refereed]
Characteristics of air-permeable water-proof geosynthetics for countermeasure against seepage failure of river dike
Kamiya, K., Y. Ito, T. Sato, Y. Kawagishi, and Y. Kojima
Advances in river engineering   23 369-374   2017   [Refereed]
Kojima, Y., R. Shigeta, N. Miyamoto, Y. Shirahama, K. Nishioka, M. Mizoguchi, and Y. Kawahara
Sensors   16 1292   2016   [Refereed]
Estimating soil moisture distributions across small farm fields with ALOS/PALSAR
Kojima, Y., K. Oki, K. Noborio, M. Mizoguchi
Int. Sch. Res. Not.   Article ID 4203783    2016   [Refereed]
Multipoint soil moisture measurements in an agricultural field with a sensor network system using a FieldRouter
Kojima, Y., A. Yamashita, T. Ito, S. Mitsuishi, M. Mizoguchi
J. Jpn Soc. Soil Phys.   133 19-27   2016   [Refereed]
Kojima, Y., J.L. Heitman, G.N. Flerchinger, T. Ren, and R. Horton
Vadose Zone J.   15(5)    2016   [Refereed]
Wang, Z., Y. Lu, Y. Kojima, S. Lu, M. Zhang, Y. Chen, and R. Horton. 
Vadose Zone J.   15(1)    2016   [Refereed]
Effectiveness of ICT field monitoring linking field images with soil and environmental data: case of a cold upland cabbage field.
Kojima, Y., S. Mitsuishi, and M. Mizoguchi.
J. Jpn Soc. Soil Phys.   131 5-13   2015   [Refereed]
Wang, Z., Y. Kojima, S. Lu, Y. Chen, R. Horton, and R.C. Schwartz.
Soil Sci. Soc. Am. J.   78(4) 1146-1152   2014   [Refereed]
Kojima, Y., J.L. Heitman, G.N. Flerchinger, T. Ren, R.P. Ewing, and R. Horton. 
Vadose Zone J.   13(9)    2014   [Refereed]
Kojima, Y., J.L. Heitman, G.N. Flerchinger, and R. Horton. 
Vadose Zone J.   12(1)    2013   [Refereed]


An analysis on the influence of precipitation and river water level on groundwater level based on observed data
Kamiya, K., Y. Inoue, and Y. Kojima
Kansai Geo-Symposium 2017 proceedings   50-53   2017   [Refereed]
Low-cost sensing system design for agriculture.
Kawahara, Y., N. Miyamoto, Y. Kojima, R. Shigeta, K. Nishioka, N. Kabaya, S. Miyamoto, and M. Mizoguchi
WCCA-AFITA 2016 Proceedings   SS-16 13-16   2016   [Refereed]
Shirahama, Y., R. Shigeta, Y. Kojima, K. Nishioka, Y. Kawahara, and T. Asami.
IEEE Sensors 2015 Proceedings   1758-1761   2015   [Refereed]
Evaluation of accuracy of estimating evapotranspiration with soil moisture depletion, stem heat balance and energy balance methods. 
Kojima, Y., K. Noborio, and M. Mizoguchi. 
Meiji Univ. Agric. Bull.   58 47-65   2008   [Refereed]

Conference Activities & Talks

Modelling frozen soil thermal conductivity
He, D., M. Dyck, Y. Kojima, G.N. Flerchinger, H. He
SSSA annual meeting   Nov 2019   
Thermo-TDR sensors - measurement of soil properties and processes
Horton, R., T. Ren, K. Noborio, J.L. Heitman, T.E. Ochsner, Y. Lu, Y. Kojima, Z. Tian, and G. Liu
SSSA annual meeting   Nov 2019   
A numerical study of contaminant accumulation using soil cooling and heating to induce soil water freezing and evaporation
Kojima, Y., Y. Nakano, G.N. Flerchinger, K. Kamiya, and R. Horton
SSSA annual meeting   Nov 2019   
A heat pulse based sensor that simultaneously determines soil thermal properties, water content, and matric potential
Kojima, Y., T. Kawashima, K. Noborio, K. Kamiya, and R. Horton
SSSA annual meeting   Nov 2019   
A new thermo-time domain reflectometry approach to quantify soil ice content at temperatures near the freezing point
Kojima, Y., Y. Nakano, C. Kato, K. Noborio, K. Kamiya, and R. Horton
Symposium on Freezing and Cold Region Phenomena   Oct 2019   
Evaluating improvement techniques for phytosuction separation method to remove heavy metals from contaminated soils
Kojima, Y., H. Terada, M. Katoh, and K. Kamiya
JpGU meeting 2019   May 2019   
Analytical solution for estimating in situ soil thermal properties
Noborio, K., Y. Kojima, H. He, and R. Horton
SSSA International Soils Meeting   Jan 2019   
Quantifying two-dimensional subsurface evaporation rates from sensible heat balances
Kojima, Y., H. Saito, J.L. Heitman, and R. Horton
SSSA International Soils Meeting   Jan 2019   
Dual functional DPHP technique -simultaneous determination of thermal properties and matric potential-
Kojima, Y.
International Symposium on Sensing Soil   Nov 2018   
Estimation of LNAPL concentration in unsaturated soil using thermo-TDR
Okumura, K., Y. Kojima, K. Noborio, and K. Kamiya
JpGU meeting 2018   May 2018