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Article
Open AccessNavigation performance analysis of Earth–Moon spacecraft using GNSS, INS, and star tracker
Global Navigation Satellite System (GNSS) can provide an approach for spacecraft autonomous navigation in earth–moon space to make up for the insufficiency of earth-based tracking, telemetry, and control syste...
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Article
Open AccessBacterial community and diversity in the rumen of 11 Mongolian cattle as revealed by 16S rRNA amplicon sequencing
Through microorganism in the rumen of ruminant, plant fiber can be converted to edible food such as meat and milk. Ruminants had a rich and complex microbial community within the rumen, and the bacteria compri...
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Article
Experimental study on modified specific energy, temperature field and mechanical properties of Xuzhou limestone irradiated by fiber laser
This paper reports the experimental investigation of the modified specific energy, mechanical properties and temperature field of limestone rock that was irradiated by continuous wave fiber laser at different ...
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Article
Occurrence and human exposure of parabens and their chlorinated derivatives in swimming pools
As an emerging group of endocrine-disrupting chemicals, parabens have attracted growing attention due to their potential effects on human health. In the present study, the occurrence and distribution of eight ...
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Article
Occurrence and distribution of antibiotics in urban soil in Bei**g and Shanghai, China
The recycling of reclaimed wastewater for irrigation and road cleaning is an important strategy to minimize water scarcity in megacities. However, little is known regarding the potential accumulation of antibi...
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Article
Synthesis, characterization and excellent photocatalytic activity of Ag/AgBr/MoO3 composite photocatalyst
A novel composite photocatalyst Ag/AgBr/MoO3 was successfully synthesized via a simple precipitation method at room temperature. The obtained products were characterized by X-ray diffraction, X-ray photoelectron ...
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Article
Investigation of Fluoroquinolones, Sulfonamides and Macrolides in Long-Term Wastewater Irrigation Soil in Tian**, China
Fluoroquinolones, sulfonamides and macrolides were analyzed in soil samples collected from suburban areas in Tian**, China. Fluoroquinolones were the predominant class of antibiotics. The mean total concentra...
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Article
Perfluorinated Compounds in Surface Water and Organisms from Baiyangdian Lake in North China: Source Profiles, Bioaccumulation and Potential Risk
The concentrations of 16 perfluorinated compounds (PFCs) were measured in surface water and organisms from Baiyangdian Lake. Perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid, and perfluorobutanoic ...
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Article
Pilot Investigation of Perfluorinated Compounds in River Water, Sediment, Soil and Fish in Tian**, China
Detectable PFCs could be found in all samples. Perfluorooctanoic acid (PFOA) was the major PFC in river water, while perfluorooctane sulfonate (PFOS) was dominant in sediment and were 17- to 153-fold higher th...
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Article
Assessment of Synthetic Musk Fragrances in Seven Wastewater Treatment Plants of Bei**g, China
Seven typical synthetic musks were measured in influents, effluents and sewage sludge from seven wastewater treatment plants of Bei**g in three seasons. Galaxolide and tonalide were the dominant musks, and th...
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Article
Evaluation of perfluorinated compounds in seven wastewater treatment plants in Bei**g urban areas
The presence of perfluorinated compounds (PFCs) in seven major wastewater treatment plants (WWTPs) in Bei**g was investigated in the current study. We detected nine PFCs in all the wastewater and sludge sampl...
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Article
Perfluorooctane sulfonate (PFOS) and other fluorochemicals in viscera and muscle of farmed pigs and chickens in Bei**g, China
Eleven perfluorinated compounds (PFCs) were determined in tissue samples from farmed pigs and chickens (n=143) that were purchased in Bei**g in March 2009. The total PFCs mean concentration was the highest in pi...
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Article
Perfluorinated compounds in milk, milk powder and yoghurt purchased from markets in China
The exposure to perfluorinated compounds (PFCs) through the diet for humans is of great concern. Among the diet, dairy products are in great demand. This paper reports the study on the levels of 9 perfluorinat...
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Article
Solid-phase extraction of sulfonylurea herbicides from water samples with single-walled carbon nanotubes disk
This study presents a new, easily made and practical solid-phase extraction disk, a single-walled carbon nanotubes (SWCNTs) disk. The properties of the disk were evaluated by extracting large volumes of aqueou...
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Article
An improved ion chromatographic method for determination of trace levels of perchlorate in environmental water
An improved ion chromatographic (IC) method was developed to determine trace levels of perchlorate in environmental water samples. Perchlorate was separated in the hydroxide selective column IonPac AS16 using ...
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Article
A liquid–liquid extraction technique for phthalate esters with water-soluble organic solvents by adding inorganic salts
In the presence of inorganic salts, the mixture solution of some water-soluble organic solvents and water can form two clearly separated phases. One is the organic solvent rich phase, the other is the water ri...
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Article
A Novel Simplified Column-Switching Technique for the Determination of Traces of Bromate in High Concentration Matrices
The column-switching technique has been widely used to determine trace level ions in the presence of high concentration matrix. A novel simplified column-switching method is proposed where bromate (as a model ...