Research Assistant, with Prof. Joseph Goguen, Dr. Arcot Rajasekar and Dr. Tony Fountain, San Diego Supercomputer Center, Department of Computer Science and Engineering, University of California at San Diego, Sept. 2000 ~ present

• "Science Environment for Ecological Knowledge", collaborative project with the Biodiversity Research Center at the University of Kansas, the Long-Term Ecological Research Network Office, the National Center for Ecological Analysis and Synthesis (NCEAS) at the University of California Santa Barbara, funded by the National Science Foundation, USA.
• "National Partnership for Advanced Computational Infrastructure (NPACI), Earth Systems Science: Managing and Mining Large Geospatial Data Collections for Distributed Ecological Analysis", collaborative project with the Long-Term Ecological Research Network Office and the Oregon State University, funded by the National Science Foundation, USA.
• "Tools for Integration of Scientific Data", supported by Academic Senate: San Diego Division, General Campus Subcommittee on Research.

Assistant Research Professor, with Prof. Yonglong Lu, Sino-Canadian High-tech Center of Resources and Environment (SCORE), Research Center for Eco-Environmental Sciences (RCEES), Chinese Academy of Sciences (CAS), Beijing, China, Nov.1997~ Sept. 2000

• "Environmental Management and Emergency Response System(I): on-line Monitoring and Emergency Response System for Dangerous Chemicals", collaborative project with Canadian ANS Tech., supported by National Natural Science Foundation of China.
• "Strategies for Sustainable Development of China", supported by Ford Foundation, USA.
• "Strategies for promoting the Commercialization of Environmental Technologies in China", Cooperated with NEPA of China, supported by National Natural Science Foundation of China.
• "Urban Environmental Enhancement and Sustainable Development", collaborative project with University College London, supported by UCL, UK.

Research Associate, with Prof. Yonglong Lu, SCORE, RCEES, CAS, July 1996~ Nov.1997

• "Toxicity Database of Chemical Substances", supported by Chinese Academy of Sciences.
• Organized the 2nd SCORE Workshop: "Industrialization of Advanced Technologies for Resources and Environmental Enhancement".
  

Research Assistant, with Prof. Naibin Bai, RCEES, CAS, July 1993~June 1996

• Master's thesis research: "Integrated Models of Artificial Neural Networks and Expert System for Quantitative Structure-Activity Relationship of Typical Pollutants", supported by National Natural Science Foundation of China.
• Organized the 1st SCORE Workshop: "Advanced Technologies for Resources and Environmental Enhancement".

Undergraduate Researcher, with Prof. Kebin He and Prof. Deli Xi, Department of Environmental Engineering, Tsinghua University, Beijing, China, Sept. 1988~June 1993

• Bachelor's thesis research: "The Analysis, Selection and Evaluation of Emission Control Technologies for Acid Precursors", a key project of the 8th 5-years National Scientific and Technological Plan of China.