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Your search keyword '"TAN, XIAO-HUA"' showing total 180 results
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180 results on '"TAN, XIAO-HUA"'

10. A SEEPAGE MODEL FOR SOLID-PHASE PARTICLE INSTABILITY IN POROUS MEDIA-BASED FRACTAL THEORY.

Author

TAN, XIAO-HUA, ZHOU, XIAO-JUN, LI, HAI, PENG, XIAN, LI, LONG-XIN, LI, QIAN, LI, QIU, and WU, TING-TING

Abstract

This paper presents a new fractal seepage model to study the decrease in seepage capacity caused by fluid erosion and pressure changes in porous media. The normalized permeability obtained by our model is in good agreement with the experiments and models in literature and has high accuracy and usability. The results demonstrate that: (1) the larger the instability coefficient, the higher the particle stability, the better the permeability of the porous medium, the later the normalized permeability decreases, and the slower it goes down, and (2) the fractal dimension of the solid skeleton set mainly affects the porosity and permeability of porous media, independent of the stability of solid particles. (3) The fractal dimension of movable particles is one of the main factors affecting the normalized permeability, it does not affect the instability conditions solid-phase particles in the porous media. The proposed model makes full use of the microstructure parameters of porous media, further reveals the mechanism of fluid flow in porous media with particle shedding, and provides a sound theoretical basis for various practical applications in petroleum engineering and other industries. [ABSTRACT FROM AUTHOR]

Published
2023
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18. L‐OPA1 deficiency aggravates necroptosis of alveolar epithelial cells through impairing mitochondrial function during acute lung injury in mice

Author

Jiang, Hui‐Ling, primary, Yang, Hui‐Hui, additional, Liu, Yu‐Biao, additional, Zhang, Chen‐Yu, additional, Zhong, Wen‐Jing, additional, Guan, Xin‐Xin, additional, Jin, Ling, additional, Hong, Jie‐Ru, additional, Yang, Jin‐Tong, additional, Tan, Xiao‐Hua, additional, Li, Qing, additional, Zhou, Yong, additional, and Guan, Cha‐Xiang, additional

Published
2022
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34. Relationship of vasculogenic mimicry, SphK1 expression, and Cx43 expression to metastasis and prognosis in colorectal cancer

Author

Su, Ying-Jie, Zhang, Jin-Xiu, Li, Si-Man, Tan, Xiao-Hua, and Huang, Jie-An

Subjects
Original Article
Abstract

Objective: To determine the presence of vasculogenic mimicry (VM) and expression of Sphingosine kinase 1 (SphK1) and Connexin43 (Cx43) in colorectal cancer (CRC) tissues, and to identify their inter-relationships and associations with multiple pathologic parameters. Methods: Ninety-two CRC specimens and normal pericarcinoma tissues were analyzed for expression of SphK1 and Cx43 using immunohistochemistry, and for identification of VM using CD34-periodic acid-Schiff dual staining. Results: The positive rate of SphK1 expression was greater in CRC cells than pericarcinoma cells (85.87% vs. 33.70%, P < 0.05). In contrast, the positive rate of Cx43 expression was greater in pericarcinoma cells than in CRC cells (58.70% vs. 92.39%, P < 0.05). Analysis of CRC tissues indicated that expression of SphK1 was associated with poor differentiation, advanced tumor stage, lymph node metastasis, and the presence of VM (P < 0.05 for each comparison). Expression of Cx43 was associated with high differentiation and the presence of VM (P < 0.05 for each comparison). Patient sex, age, tumor size, depth of invasion, and distant metastasis were unrelated to the expression of either protein. There was a significant correlation between the expression of SphK1 and Cx43 (P < 0.05). Analysis of overall patient survival indicated that SphK1 positivity and the presence of VM were significantly associated with poor survival, but Cx43 positivity had no relationship with survival. Conclusion: SphK1 protein expression was significantly greater in CRC tissues than pericarcinoma tissues, suggesting this protein may be associated with the pathogenesis of CRC. In addition, the significant correlation between expression of SphK1 and Cx43 in CRC tissues suggests their interaction may impact the pathogenesis of CRC.

Published
2018

35. A novel model for calculating critical droplet entrainment rate of gas well considering droplet deformation and multiple parameters.

Author

Xiao, Heng, Li, Xiao‐Ping, Tan, Xiao‐Hua, Li, Jinhan, Han, Chong, Xiao, Hang, Han, Zongzhi, and Cao, Lina

Subjects
GAS wells, FLOW coefficient, GAS flow, DRAG (Aerodynamics), SURFACE tension, DRAG coefficient
Abstract

When a spherical droplet moves parallel to the direction of motion of its surrounding gas medium, it will deform into an ellipsoidal droplet. In this paper, an exposition of a novel model for predicting the minimum flow rate for the continuous removal of liquids from gas wells based on two theories is presented. First, droplet breakup principle is utilized to microscopically obtain the maximum size parameters of ellipsoidal droplets, and second, droplet force equilibrium is adopted to macroscopically calculate the critical droplet entrainment rate. Moreover, effect of variations in the windward area (attributed to droplet deformation) on the drag coefficient is determined. Impacts of variations in pressure, temperature, and pipe diameter on the gas‐liquid two‐phase friction resistance and gas‐liquid surface tension are also considered. For model verification and comparison with other droplet entrainment models, field data from 3436 gas wells are utilized. The field data well validates the results with a 92% accuracy, indicating that the new model has a better comprehensive performance in determining whether or not a gas well is loaded. Besides, parameter sensitivity analyses including the effects of drag coefficient, surface tension, and friction coefficient on the minimum flow rate of gas are performed. Finally, the relationship curve of critical droplet entrainment rates corresponding to different pressures and pipe diameters is established. [ABSTRACT FROM AUTHOR]

Published
2021
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38. Ultrasound in neonatal lung disease

Author

Liang, Hui-Ying, primary, Liang, Xiao-Wen, additional, Chen, Zhi-Yi, additional, Tan, Xiao-Hua, additional, Yang, Hui-Hui, additional, Liao, Jian-Yi, additional, Cai, Kuan, additional, and Yu, Jin-Sui, additional

Published
2018
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