研究期間：10108~10207;This is a three‐year‐term (2011.8~2014.7) research project entitled “Phase Dynamics of Complex Systems”. The aim of the project is to develop phase dynamics approach to nonstationary time series of complex systems and the corresponding theoretical foundation, and the applications of the developed approach to the study of typical complex systems. The complex systems of interest include biomedical system and economic system. The main research problems of the present project include: 1. Developing theoretical foundation for the phase dynamics approach to nonstationary time series of complex systems 2. Characterizing ventricular fibrillation (VF) ECG and identifying precursors of VF in early (normal) ECG 3. Establishing a new framework for financial time series analysis and Developing of the corresponding physical model We expect the present project will reach the following achievements: 1. Development of new approaches for time series analysis 2. Understanding the properties of VF ECG signal, and identification of precursors of VF in early ECG 3. Better understanding of the properties of financial time series, and improving the experience‐based formulation of economic models We expected that our research results will be helpful and useful for fundamental researches of related fields. It is also expected that every year a number of important research papers can be published in SCI Journals based on researches of this project.