Mingxia Chen

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The increasing shortage of water resources has led to the development and adoption of aerobic rice system, which saves water input and increases water productivity by reducing water use during land preparation and limiting seepage, percolation, and evaporation. Aerobic rice also reduces labor requirement and greenhouse gaseous emission from rice field. In(More)
TiO2-WO3 hybrid photocatalysts were prepared using wet-chemical technique, and their energy storage performance was characterized by electrochemical galvanostatic method. TiO2 powder was coupled with WO3 powder, which was used as electron pool and the reductive energy could be stored in. As a result, the prepared TiO2-WO3 had good energy storage ability(More)
Air pollution contributes substantially to global health burdens; however, less is known about pollution patterns in China and whether they differ from those elsewhere. We evaluated temporal and spatial heterogeneity of air pollution in Lanzhou, an urban Chinese city (April 2009-December 2012), and conducted a systematic review of literature on air(More)
A magnetically separable photocatalyst TiO(2)/SiO(2)/NiFe(2)O(4) (TSN) nanosphere with egg-like structure was prepared by a unique process that combined a liquid catalytic phase transformation method, reverse micelle technique and chemical precipitation means. The prepared photocatalyst shows high photocatalytic activity for the degradation of methyl orange(More)
Pt supported on mesoporous silica SBA-15 was investigated as a catalyst for low temperature selective catalytic reduction (SCR) of NO by C3H6 in the presence of excess oxygen. The prepared catalysts were characterized by means of XRD, BET surface area, TEM, NO-TPD, NO/C3H6-TPO, NH3-TPD, XPS and 27Al MAS NMR. The effects of Pt loading amount, O2/C3H6(More)
Bone epithelioid angiosarcoma (EA) is rare and characterized by large, mildly to moderately pleomorphic epithelioid cells, with abundant eosinophilic cytoplasm, vesicular nuclei, and prominent nucleoli. The tumors may arise in various locations in bone and the patients may present with unifocal or multifocal osseous disease. We present a unifocal lesion(More)
The study aimed to investigate the metal compositions in indoor PM2.5 and the potential health risks they pose to residents of an urban area in China. A total of 41 and 54 households were surveyed in February and September 2013, respectively. The results showed that the indoor concentrations of metals varied depending on the types of cooking fuels used. All(More)
AIMS To investigate the effects of curcumin on alveolar epithelial injury in a rat model of chronic obstructive pulmonary disease (COPD) and its potential mechanism. MAIN METHODS The rat COPD model was established by cigarette smoke exposure combined with intratracheal administration of lipopolysaccharide. Thirty-eight male Sprague-Dawley rats were(More)
A 0.5 wt.% Pt/TiO2 catalyst was prepared and used for the low-temperature selective catalytic reduction (SCR) of NO with C3H6 in the presence of excess oxygen. The effects of Pt loading and O2 concentration on Pt/TiO2 catalytic performance for low-temperature SCR were investigated. It was found that optimal Pt loading was 0.5 wt.% and excess O2 favored(More)
A 0.5 wt% Pt/ZSM-5 catalyst was used for the low-temperature selective catalytic reduction (SCR) of NO with C(3)H(6) in the presence of excess oxygen. Under an atmosphere of 150 ppm NO, 150 ppm C(3)H(6) and 18 vol% O(2) (GHSV 72,000 h(-1)), Pt/ZSM-5 showed remarkably high catalytic performance giving 77.1% NO reduction to N(2) + N(2)O and 79.7% C(3)H(6)(More)
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