Wind energy is an important renewable energy source because of its reliability due to the maturity of the technology, good infrastructure and relative cost competitiveness. Rich wind resources and strong support in regulations by the Chinese government have enabled the wind power industry to...

Analyzing the vibration signals of wind turbine usually requires feature extraction. However, in many cases, to extract feature components becomes challenging and the applicability of information drops down due to the large amount of noise. In this paper, a new denoising method based on adaptive...

Fault diagnosis for wind turbine transmission systems is an important task for reducing their maintenance cost. However, the non-stationary dynamic operating conditions of wind turbines pose a challenge to fault diagnosis for wind turbine transmission systems. In this paper, a novel fault...

Compressed air energy storage (CAES) is a large-scale technology that provides long-duration energy storage. It is promising for balancing the large-scale penetration of intermittent and dispersed sources of power, such as wind and solar power, into electric grids. The existing CAES plants...

In this study, an improved CO₂ separation and purification system is proposed based on in-depth analyses of cryogenic separation and distillation theory as well as the phase transition characteristics of gas mixtures containing CO₂. Multi-stage compression, refrigeration, and separation are...

Retrofitting existing power plants for CO2 capture poses numerous constraints. The layout of the original process and the structure of the existing equipment cause various special problems in the design process as well as influence system performance. In view of these, this paper carries out...

This paper investigates the relationship between environmental pollution and economic growth in China based on the environmental Kuznets curve hypothesis, using Chinese provincial data over 1985-2005. Waste gas, waste water and solid wastes are used as environmental indicators and GDP is used as...

Real earnings have increased for all demographic and skill groups within China’s urban labor market from the mid-1990s to the early 2000s. This paper analyzes these changes in earnings with respect to the relative supply and demand changes of each of the imperfectly substitutable labor inputs....

Friedman's plucking model of business fluctuations suggests that output cannot exceed an upper limit, but it is occasionally "plucked" downward below trends as a result of economic recessions. This paper investigates China's business fluctuations using quarterly real GDP data for the period...

All of the demographic and skill groups in China's urban labor market received increases in their real earnings from the mid-1990s to the early 2000s. This paper analyzes these relative earnings increases with respect to the relative supply and demand changes for each of these imperfectly...