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Di Tang,Shiyi Bao,Binbin Lv,Hao Cui,Lijia Luo,Min Xu 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.6
Shedding vortices in cross flow are of much practical importance in the analysis of flow induced vibrations of a steam generator. However, studies of shedding vortex are still few in present, especially in shedding patterns and its influences on lift performances. In this paper, five basic shedding patterns were investigated by numerical simulations of a 2D unsteady flow around a bundle with 253 cylinders. The numerical results clearly demonstrated that flow in line is the most common pattern. On the hand, the other four shedding patterns, cross in line, cross near line near, cross near line far and cross far line near, appear randomly. Influences of shedding vortices on lift performances were concluded as lift enhancement, lift pit and lift lag. These numerical results can provide a basic knowledge of shedding vortices for cylinders and can precisely quantify their influences on unsteady lift performances.
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Yan Juntao,Bao Shiyi,Liu Liu,Zhang Yu-Qing,Ming Jian,Wei Yan,Chen Yingyao 한국한의학연구원 2023 Integrative Medicine Research Vol.12 No.1
Background: Traditional Medicine (TM) has a wide uptake in most countries. In China, Traditional Chinese Medicine (TCM) is a common kind of primary health because of its beneficial effects. This review aimed to appraise the publication reporting quality of economic evaluations for selective TCM in the National Reimbursement Drug List (NRDL), Version 2020, based on the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) statement. Methods: Electronic databases were searched for economic evaluation that supported the TCM negotia- tions in NRDL (2020 version) published from 2001 to 2021, including PubMed, Web of Science, Embase, CNKI, WanFang, and SinoMed. The CHEERS statement was used to appraise the reporting quality of in- cluded TCM economic evaluations. Results: A total of 360 articles were retrieved, but only 38 economic evaluations met the inclusion crite- ria. None of the articles reported all items in the CHEERS checklist. The mean score of included articles is low at 10.93 ±2.62, with an average scoring rate of 51.31 ±10.53%. The least reported items included: “Characterizing heterogeneity,”“Conflicts of interest”, “Discount rate,”and “Study perspective,”with a re- porting rate of 0.00%, 5.26%, 7.89%, and 15.79%, respectively. Conclusion: An upward trend occurred in the quantity and quality of the economic evaluation publica- tions of TCM in China. TCM economic evaluations are still at an early stage, with an urgent need for improving reporting quality. It may result from research experiences or different ideas between TCM and Western Medicine. Adhering to reporting guidelines like CHEERS and educating economic evaluation in- vestigators can improve TCM economic evaluations’ reporting quality.
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Effects of temperature on the local fracture toughness behavior of Chinese SA508-III welded joint
Li Xiangqing,Ding Zhenyu,Liu Chang,Bao Shiyi,Qian Hao,Xie Yongcheng,Gao Zengliang 한국원자력학회 2020 Nuclear Engineering and Technology Vol.52 No.8
The structural integrity of welded joints in the reactor pressure vessel (RPV) is directly related to the safety of nuclear power plants. The RPV is made from SA508-III steel in a pressurized water reactor. In this study, we investigated the effects of temperature on the tensile and fracture toughness properties of Chinese SA508-III welded joint in different sampling areas in order to provide reference data for structural integrity assessments of RPVs. The specimens used in tensile and fracture toughness tests were fabricated from the base metal (BM), weld metal (WM), and the heat-affected zone (HAZ) in the welded joint. The representative testing temperatures included the ambient temperature (20 C), upper shelf temperature (100 C), and service temperature (320 C). The results showed that temperature greatly affected the fracture toughness (JIC) values for the SA508-III welded joint. The JIC values for BM and HAZ both decreased remarkably from 20 C to 320 C. The fracture morphologies showed that the BM and HAZ in the welded joint exhibited fully ductile fracture at 20 C, whereas partial cleavage fracture was mixed in ductile fracture mode at 100 C and 320 C. The WM exhibited the ductile and cleavage fracture mixed mode at various temperatures, and the JIC values showed slight changes
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Teng Yue,Wei Yan,Chen Yingyao,Yan Juntao,Liu Shimeng,Li Fuming,Bao Shiyi,Ren Yanfeng,Liu Liu,Yang Yi 한국한의학연구원 2023 Integrative Medicine Research Vol.12 No.3
Background: Traditional Chinese Medicine (TCM), integrating patient preferences into decision-making process, has been widely used in the multimodality therapy of lung cancer. This study aimed to estimate patient preferences for treatment and shared decision-making (SDM) modes concerning inpatient TCM treatment of lung cancer in Shanghai in order to provide a basis for clinical decision-making process on TCM therapy for lung cancer. Methods: This study was conducted among patients (n = 347) from nine tertiary hospitals in Shanghai by discrete-choice experiment (DCE) survey and Shared Decision-Making Questionnaire-patient version (SDM-Q-9) survey. The DCE was developed with the inclusion of the most relevant attributes at appropriate levels for the TCM treatment of lung cancer. The empirical data analyses of patients were performed using mixed logit models. Additionally, subgroup analysis was conducted. Results: In total, 347 respondents completed the questionnaire. All attributes’ coefficients were statistically significant for patients’ preferences. Patients showed strong preferences for increasing disease control rate, relieving nausea and vomiting, reducing the risk of side effects, and were concerned about monthly out-of-pocket costs. Subgroup analysis indicated that patients with a lower SDM-Q-9 score and those who were satisfied with medical services emphasized more importance of higher disease control rate. Furthermore, most of the patients (90.20%) self-reported a high willingness to use SDM during the decision-making process. Conclusion: In Shanghai, patients mainly preferred SDM and considered disease control rate as the most essential attribute in the TCM treatment of lung cancer. The study findings could underscore the importance of considering patients’ preferences and promote SDM.
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