Thermal properties measurement of frozen/thawed quartz sand using a novel ILS model

A novel stepwise method is proposed based on a ILS model to estimate the thermal properties in frozen/thawed soil. The ILS model and the experiment data are uploaded. The uploaded files include: Matlab script to compile the semi-analytical model (Cylindrical_Heat_Conduction_ILS.mat) Numerical inversion algorithm (INVLAP.mat) Experiment data files (detailed in the file 'read me')