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...

The current study tested a five level taxonomy of training delivery systems organized according to information richness: print, video, computer-based training, distance learning and face-to-face. The information richness measure used was based on the work of Daft & Lengel (1984) and consisted of...