Search

Your search keyword '"Lin, Xinbei"' showing total 10 results
Start Over Author "Lin, Xinbei"
10 results on '"Lin, Xinbei"'

6. An Inverted U-shaped Relationship between Neutrophil-to-Lymphocyte Ratio and Hypertension in Overweight and Obese Populations: Evidence from a Large-scale Health Screening Data

Author

Sun, Yongbing, primary, Li, Fengli, additional, Zhou, Yang, additional, Liu, Ao, additional, Lin, Xinbei, additional, Zou, Zhi, additional, Lv, Xue, additional, Zhou, Jing, additional, Li, Zhonglin, additional, Wu, Xiaoling, additional, Dou, Shewei, additional, Zhang, Michael, additional, Zhu, Jiadong, additional, Chen, Yalong, additional, Xiao, Xinguang, additional, Hu, Yangxi, additional, Li, Hao, additional, and Li, Yongli, additional

Published
2024
Full Text
View/download PDF

9. Transverse Force Analysis of Adjacent Shield Tunnel Caused by Foundation Pit Excavation Considering Deformation of Retaining Structures

Author

Gang Wei, Lin Xinbei, Chang Xia, Wei Xinjiang, and Xinhai Zhang

Subjects
additional confining pressure, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, General Mathematics, Shear force, Deformation (meteorology), Physics::Geophysics, Stress (mechanics), sidewall unloading of foundation pit, deformation of the retaining structures, adjacent shield tunnel, transverse force, Shield, QA1-939, Physics::Atomic and Molecular Clusters, Computer Science (miscellaneous), Geotechnical engineering, Foundation (engineering), Excavation, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Overburden pressure, Chemistry (miscellaneous), Bending moment, Physics::Accelerator Physics, Mathematics, Geology
Abstract

In order to research the theory for the variety of transverse forces of the adjacent shield tunnels caused by foundation pits excavation, the effect mechanism of foundation pit excavation on the adjacent shield tunnel was analyzed. The sidewall unloading model of the foundation pit, considering the deformation of the retaining structures, was introduced to calculate the additional stress of soil caused by foundation pit excavation. On this basis, the additional confining pressure variation model of the adjacent shield tunnel was established, considering the influence of the longitudinal deformation. Take the deep foundation pit project by the side of the shield tunnel of Hangzhou Metro Line 2 as a case study, the variation in confining pressure distribution of the adjacent shield tunnel caused by foundation pit excavation was analyzed, and a simplified finite element model was established to calculate the internal force of the segment ring structure. Moreover, the influence factors were analyzed, such as the deformation of the foundation pit retaining structure, the clearance between the foundation pit and the adjacent tunnel, and the buried depth of the tunnel. The present study suggests that the foundation pit excavation reduces the confining pressure of the adjacent shield tunnel, increases the absolute value of bending moment and shear force, and decreases the axial force at the top and bottom of the tunnel’s segment ring. With the increase in the deformation of the foundation pit’s retaining structure, the absolute value of the additional confining pressure on the adjacent tunnel increases, and the response of the bending moment to the foundation pit excavation unloading is more obvious than the variation in the confining pressure. When the buried depth of the adjacent shield tunnel is deeper than the excavation depth of the foundation pit, the influence of the excavation on the tunnel will be obviously weakened. With the decrease in the distance between the pit and tunnel, the influence of the excavation on the tunnel will be enhanced.

Published
2021

10. Association between liver fat level and risk of hypertension: evidence from a Chinese health examination dataset.

Author

Sun Y, Qi X, Wang X, Lin X, Zhou Y, Du Y, Liu A, Lv X, Zhou J, Li Z, Wu X, Zou Z, Dou S, Zhang M, Zhu J, Shang F, Li F, Hu Y, Li H, and Li Y

Subjects
Humans, Female, Male, Middle Aged, Cross-Sectional Studies, China epidemiology, Adult, Risk Factors, Liver pathology, Fatty Liver, Inflammation, Hypertension epidemiology
Abstract

Background: Hypertension development is predominantly influenced by inflammation, excessive fat deposition, and metabolic irregularities. Among these factors, liver fat accumulation is a critical metabolic disorder. However, the quantification of liver fat levels and its associated risk for hypertension incidence remain ambiguous. This project is designed to explore the association between liver fat levels and the risk of hypertension in a healthy population., Methods: This cross-sectional study involved 4955 participants from the Health Management Center at Henan Provincial People's Hospital who were surveyed between February 2020 and February 2023. Participants were categorized into four groups based on liver fat quartiles. Subgroup analyses, restricted cubic spline regression models, and logistic regression were utilized to assess the association between liver fat levels and hypertension risk. The relationships between liver fat levels and inflammatory markers were examined using multiple linear regression models. Additionally, a mediation analysis was conducted to explore the role of inflammatory factors in the relationship between liver fat and hypertension risk., Results: Participants with hypertension exhibited greater liver fat levels than did those without hypertension. An increased risk of hypertension was associated with elevated liver fat levels, even after adjusting for other covariates [Q4 vs. Q1 in model II: odds ratio (OR = 1.28), 95% confidence interval (CI) = 1.04-1.59, P  = 0.022; P for trend = 0.039]. A nonlinear relationship was observed between liver fat level and hypertension risk, with a notable increase in hypertension risk occurring at liver fat levels greater than 8.65%. Additionally, a positive correlation was found between inflammatory markers and liver fat levels. A mediation effect of 4.76% was noted, linking hypertension risk and liver fat levels through neutrophils., Conclusion: Liver fat levels exceeding 8.65% significantly elevated the risk of hypertension. Inflammatory factors serve as crucial mediators of the relationship between liver fat and hypertension., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results