Using China's 2000 census data, this paper conducts population projection under different fertility scenarios to gauge the likely trends in China's future population change. The range of fertility assumptions captures the uncertainty of current fertility estimates as well as the likely trends...

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Photocatalytic degradation is a promising means to restore the ever-growing pharmacological active compounds (PHACs) contamination in the water environment. Herein, the oxygen vacancies (OVs) modulated Z-scheme CuWO4/CuBi2O4 hybrid systems were fabricated at thermal treatment by in-situ loading...

This paper explores the incentives of investment in renewable energy of two utility firms who compete or cooperate under either a cap-and-trade grandfathering mechanism (GM) or benchmarking mechanism (BM). We find that utility firms will invest in renewable energy more under BM than under GM, in...

The push services provide an incredibly efficient and reliable way of sending information to mobile device users. However, very little is known about how push service providers implement their services. This understanding is valuable as a guideline for building well-performing mobile...