Although China has implemented many air pollution control policies, its air pollution problems remain severe with rapid economic development. The strategy of controlling single pollutant in one period and adding another in the next period (i.e., gradual control strategy) adopted in China has...

This paper analyzes the change of aggregated CO2 in China from 1957 to 2000 based on a complete decomposition approach—the logarithmic mean divisia index (LMDI) method. The study indicates that China has achieved a considerable decrease in its CO2 emissions mainly due to improved energy...

It is critical to alleviate problems of energy and air pollutants emissions in the metropolis because these areas serve as economic engines and have large and dense populations. Drivers of fossil fuel use and air pollutants emissions were analyzed in metropolis of Beijing during 1997–2010. The...

Industrial parks are the economic engines for many China regions, but they also consume a great deal of energy and emit greenhouse gases. However, few empirical studies have examined these special communities. We selected SIP (Suzhou Industrial Park) as a case study. Carbon emissions from SIP...

In traditional PDRE (pulse detonation rocket engines), mechanical valves are used for periodic supply control and a purge process is widely used to form a buffer zone to prevent fresh fuel-oxidizer mixture from pre-ignition. However, both of them increase hardware complexity and limit increase...

To measure the propulsive performance of a high-frequency PDRE (pulse detonation rocket engine), an experimental facility was established. Utilizing the valveless mode, the PDRE was operated without the purge process at a maximum operating frequency of 110 Hz successfully. In this study,...