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Your search keyword '"Sun, Xingliang"' showing total 17 results
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17 results on '"Sun, Xingliang"'

14. Parameter Analysis and Transient-Feature Study of a Long-Time Working Hybrid Rocket Motor

Author

Sun Xingliang, Zhu Hao, Tian Hui, Li Chengen, and Cai Guo-biao

Subjects
020301 aerospace & aeronautics, Computer science, Mechanical Engineering, Aerospace Engineering, Regression rate, 02 engineering and technology, Rocket motor, 020303 mechanical engineering & transports, 0203 mechanical engineering, Control theory, Feature (computer vision), Parameter analysis, General Materials Science, Transient (oscillation), Civil and Structural Engineering
Abstract

This study attempts to provide and analyze the performance parameters and transient features of a long-time working hybrid rocket motor (HRM) for its potential applications. To conduct the ...

Published
2019

15. Pre-Support Method for Horizontal Overlapping Jet Grouting Columns for Very-Large Cross-Section Tunnels in Dry Silty Sand Strata: A Case Study

Author

Guo, Xiaolong, Chen, Yubing, Sun, Xingliang, and Bao, Yeming

Abstract

The Shangbai Tunnel on the Daxi Passenger Dedicated Line passes through unsaturated dry silty sand strata which is prone to sand leakage and gushing after disturbance, posing a significant threat to the safety and progress of construction work. Using the Shangbai Tunnel project as a case study, we conduct laboratory experiments to determine the physical and mechanical properties of dry silty sand layers and analyze the limitations of advanced large pipe shed pre-support and small pipe grouting pre-support structures. The objective is to evaluate the feasibility and reveal the mechanism of horizontal rotary jet grouting for column formation and pre-support. The physical and mechanical properties of the consolidated body of the overlapping columns are evaluated. Three pre-reinforcement schemes using overlapping columns for tunnels crossing different subsurface profiles are proposed. Experiments are conducted to assess the physical and mechanical properties of the overlapping columns, and on-site monitoring and analysis of the tunnel arch settlement and stress changes are performed. The results indicate that the proposed method for creating overlapping columns ensures the stability of the working face, controls arch settlement, and is cost-effective. Our study summarizes the findings from the data and information for the construction of similar projects.

Published
2024
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17. Effects of a reminiscence therapy-involved program on anxiety, depression, and the quality of life in cancer patients: a meta-analysis of randomized controlled trials.

Author

Sun X, Su W, Yin M, and Xia L

Abstract

Objective: Reminiscence therapy is increasingly being utilized for cancer patients to address psychological pressure and enhance their quality of life. This meta-analysis aimed to comprehensively evaluate the effect of a reminiscence therapy-involved program (RTIP) on anxiety, depression, and quality of life in cancer patients., Methods: A systematic literature search was conducted in the Web of Science, PubMed, Embase, and Cochrane Library databases until December 2023 to screen randomized control trials (RCTs) comparing the effect of RTIP and control care., Results: A total of 16 RCTs published from 2013 to 2023 were included, with 1,963 cancer patients undergoing RTIP with or without control care (RTIP group, N = 984) or control care (control group, N = 979). The results showed the the anxiety score [standardized mean differences (SMD) = -0.539; 95% confidence interval (CI) = -0.700, -0.378; P < 0.001], anxiety rate [relative risk (RR) = 0.736; 95% CI: 0.627, 0.865; P < 0.001], depression score (SMD = -0.664; 95% CI: -0.967, -0.361; P < 0.001), and depression rate (RR = 0.632; 95% CI = 0.532, 0.750; P < 0.001) were significantly reduced in the RTIP group compared to the control group. Furthermore, overall quality of life was increased in the RTIP group than in the control group (SMD = 0.501; 95% CI: 0.314, 0.689; P < 0.001). In digestive system cancer patients, anxiety/depression scores and rates were reduced, and the overall quality of life was elevated in the RTIP group in comparison with the control group (all P < 0.050). The quality of evidence was generally high, with a low risk of bias in most studies and no publication bias in any outcomes (all P > 0.050)., Conclusion: RTIP attenuates anxiety and depression and improves the quality of life in cancer patients, benefitting their overall health condition., Systematic Review Registration: This meta-analysis was registered at PROSPERO with registration number CRD42024563266., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Sun, Su, Yin and Xia.)

Published
2024
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