Yang Liu, is a senior engineer at Tsinghua-Zhongcheng United Research Center on Intelligent manufacturing.  She received her PhD in mechanical engineering at University of Minnesota in 2017.  Prior to studying at University of Minnesota, she worked as a gas turbine application engineer and field service engineer at GE China for five years.  Her current work is on the vibration measurement and control.

• Chapter1: Introduction.- Chapter2: Prior Research.- Chapter3: A Model of the Defrost Process.- Chapter4: Solution Methods.- Chapter5: Experimental Design.- Chapter6: Results.- Chapter7: Conclusion.

Yang Liu, is a senior engineer at Tsinghua-Zhongcheng United Research Center on Intelligent manufacturing.  She received her PhD in mechanical engineering at University of Minnesota in 2017.  Prior to studying at University of Minnesota, she worked as a gas turbine application engineer and field service engineer at GE China for five years.  Her current work is on the vibration measurement and control.

• Chapter1: Introduction.- Chapter2: Prior Research.- Chapter3: A Model of the Defrost Process.- Chapter4: Solution Methods.- Chapter5: Experimental Design.- Chapter6: Results.- Chapter7: Conclusion.

Yang Liu, is a senior engineer at Tsinghua-Zhongcheng United Research Center on Intelligent manufacturing.  She received her PhD in mechanical engineering at University of Minnesota in 2017.  Prior to studying at University of Minnesota, she worked as a gas turbine application engineer and field service engineer at GE China for five years.  Her current work is on the vibration measurement and control.

• Chapter1: Introduction.- Chapter2: Prior Research.- Chapter3: A Model of the Defrost Process.- Chapter4: Solution Methods.- Chapter5: Experimental Design.- Chapter6: Results.- Chapter7: Conclusion.