Search

Your search keyword '"LI, XUEFANG"' showing total 541 results
Start Over Author "LI, XUEFANG"
541 results on '"LI, XUEFANG"'

24. 2-D Simulation of Flow Entering a Building

Author

Paquier, André, Mangara, Cheikh, Mignot, Emmanuel, Li, Xuefang, Dewals, Benjamin, Kostianoy, Andrey, Series Editor, Carpenter, Angela, Editorial Board Member, Younos, Tamim, Editorial Board Member, Scozzari, Andrea, Editorial Board Member, Vignudelli, Stefano, Editorial Board Member, Kouraev, Alexei, Editorial Board Member, Gourbesville, Philippe, editor, and Caignaert, Guy, editor

Published
2022
Full Text
View/download PDF

26. Rapid Determination of 53 Stimulants Residues in Animal Food by Ultra-high Liquid Chromatography Tandem Mass Spectrometry

Author

Chen Shuang, Zhou Yong, Wang Pingya, Zhang Wei, Deng Shanggui, Wang Yang, Li Shiyan, He Hui, and Li Xuefang

Subjects
Microbiology, QR1-502, Physiology, QP1-981, Zoology, QL1-991
Abstract

A liquid chromatography-tandem mass spectrometry (LC-MS) method for screening 53 stimulants in animal foods was developed. The method uses 2% formic acid-acetonitrile/water (80/20) as the extraction solvent and carries out one-step purification by FaVEx-AP solid phase extraction column. Endeavorsil C18 column was used for separation, and multiple reaction monitoring (MRM) mode was used for data acquisition and analysis. The results showed that the correlation coefficient (R2) was more than 0.99. The detection limit and quantification limit were 0.25–10μg/kg and 1–10μg/kg. The recoveries were 62.25%–123.32% and the relative standard deviation (RSD) was 1.17%–22.03%. The method is rapid, simple and accurate, and is suitable for the determination of 53 kinds of stimulants in animal-derived foods.

Published
2024
Full Text
View/download PDF

31. A Two-grid Method for Linearizing and Symmetrizing the Steady-state Poisson-Nernst-Planck Equations

Author

Li, Xuefang, Yang, Ying, and Cheng, Hang

Subjects
Mathematics - Numerical Analysis
Abstract

In this paper, a two-grid method is proposed to linearize and symmetrize the steady-state Poisson-Nernst-Planck equations. The computational system is decoupled to linearize and symmetrize equations by using this method, which can improve the computational efficiency compared with the finite element method. Error estimates are derived for the proposed method. The numerical results show that the two-grid method is effective., Comment: 11 pages

Published
2017

33. Characteristics of Hydrogen Leakage and Dissipation from Storage Tanks in an Integrated Hydrogen Production and Refueling Station.

Author

Yang, Tianqi, Xiao, Zhili, Zeng, Shiyan, Zhao, Yingjiang, Xu, Linzhi, Chen, Shiyu, Song, Chunyan, Yan, Xianglin, Li, Xuefang, Luo, Hao, Xu, Nianfeng, and Xiao, Jinsheng

Subjects
COMPUTATIONAL fluid dynamics, STORAGE tanks, HYDROGEN storage, CLEAN energy, HYDROGEN production
Abstract

Hydrogen, as a renewable and clean energy carrier, has the potential to play an important role in carbon reduction. Crucial to achieving this is the ability to produce clean sources of hydrogen and to store hydrogen safely. With the rapid development of the hydrogen industry, the number of hydrogen refueling stations (HRS) is increasing. However, hydrogen safety at HRS is of great concern due to the high risk of hydrogen leakage during storage. This study focused on an integrated hydrogen production and refueling station (IHPRS) in Weifang, China, and numerically simulated a hydrogen leakage accident in its storage area. The effects of the leakage aperture, the leakage direction and the ambient wind direction and speed on the leakage and dissipation characteristics of hydrogen were investigated. The results showed that the volume, mass and dissipation time of the flammable hydrogen cloud (FHC) increased with an increase in the leakage aperture. The installation of a canopy or densely packed equipment near the hydrogen storage area will seriously hinder the dissipation of the FHC. Ambient winds in the opposite direction of the leakage may cause high-concentration hydrogen to accumulate near the hydrogen storage tanks and be difficult to dissipate, seriously threatening the safety of the integrated station. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results