Source google image: https://www.researchgate.net/profile/Ging_Long_Lin/publication/263401828/figure/tbl1/AS:392448032428036@1470578310263/Experimental-parameters-of-the-PSIS_W840.jpg
Coef k isolation
Source google image: https://www.researchgate.net/profile/Ging_Long_Lin/publication/263401828/figure/tbl1/AS:392448032428036@1470578310263/Experimental-parameters-of-the-PSIS_W840.jpg