1. Duan, H. Approaches to quantification the carbon emission of construction & demolition waste in China. 8th ICWMT, Shanghai, China. October 23-25, 2013. Oral presentation.

2. Duan, H., Miller, T.R., Gregory, J., Kirchain, R. A robust computational method to quantify United States used electronics flows. IEEE-ISSST 2013. Cincinnati, Ohio, USA. May 15-17, 2013. Oral presentation.

3. Duan, H., Miller, T.R., Gregory, J., Kirchain, R. Quantifying the export flow of used electronics from the United States: the case of laptop computers. Oral presentation. TMS 2013 Symposium (REWAS 2013): Enabling Materials ResourceSustainability. San Antonio, Texas, USA, March 3-7, 2013. Oral presentation.

4. Cheng Fan, Fu Xiao*, Shengwei Wang. Prediction of chiller power consumption using time series analysis and artificial neural networks. CLIMA 2013 - The 11th REHVA World Conference, Prague, Czech: 2013.