The Fe 3 O 4 nanoparticles is a promising material in a number of areas, but little is known on the effects of temperature on its properties. Therefore, Fe 3 O 4 nanoparticles was prepared by chemical co-precipitation method, the particle size, the spectra changes and the stabilities of Fe 3 O 4...

A questionnaire survey was performed in eight Chinese cities (40,279 adults participated; response rate 75%). There were questions on demographic information of the participants, allergic rhinitis, asthma, perceived odors and home environment. Among participants: the majority were women (74.7%)...

Non-targeted analysis (NTA) was used in identifying volatile organic compounds (VOCs) in a museum in China with the gas chromatograph (GC)−Orbitrap−mass spectrometer (MS). Approximately 230 VOCs were detected, of which 117 were observed at 100% frequency across all sampling sites. Although...

This paper introduces a new city-level panel dataset constructed using satellite nighttime light imagery and grid population data. The dataset contains over 1,500 cities covering 43 economies of Asia and the Pacific from 1992 to 2016. With the dataset, we perform a variety of analyses for Asia...