Ning LuNing Lu is Professor of Civil and Environmental Engineering at Colorado School of Mines and his primary research in the past decade has concentrated on hillslope hydrology and slope stability. He is the senior author of Unsaturated Soil Mechanics (Jon Wiley and Sons, 2004) and has also published extensively in peer-reviewed journals on unifying effective stress in variably saturated porous media. Professor Lu is a recipient of the Norman Medal and the Croes Medal from the American Society of Civil Engineers for his seminal work on defining suction stress in variably saturated soils. Read More Read Less