| 1 | Fluid Analysis and Structure Optimization of Impeller Based on Surrogate Model显示文摘The surrogate model technology has a good performance in solving black-box optimization problems,which is widely used in multi-domain engineering optimization problems.The adaptive surrogate model is the mainstream research direction of surrogate model technology,which can realize model fitting and global optimization of engineering problems by infilling criteria.Based on the idea of the adaptive surrogate model,this paper proposes an efficient global optimization algorithm based on the local remodeling method(EGO-LR),which aims at improving the accuracy and optimization efficiency of the model.The proposed algorithm firstly constructs the expectation improvement(EI)function in the local area and optimizes it to get the update points.Secondly,the obtained update points are added to the global region until the global accuracy of the model meets the requirements.Then the differential evolution algorithm is used for global optimization.Sixteen benchmark functions are used to compare the EGO-LR algorithm with the existing algorithms.The results show that the EGO-LR algorithm can quickly converge to the accuracy requirements of the model and find the optimal value efficiently when facing complex problems with many local extrema and large variable spaces.The proposed algorithm is applied to the optimization design of the structural parameter of the impeller,and the outflow field analysis of the impeller is realized through finite element analysis.The optimization with the maximum fluid pressure(MP value)of the impeller as the objective function is completed,which effectively reduces the pressure value of the impeller under load. | Huanwei Xu Wenzhang Wei Hanjin He Xuerui Yang | 2022 | Computer Modeling in Engineering & Sciences2022，，7： | 0 |
| 2 | Long-term effects of Qingfei Paidu decoction(清肺排毒汤)in patients with coronavirus disease 2019 acute pneumonia after treatment:a protocol for systematic review and Meta-analysis显示文摘This study aims to provide evidence regarding whether Qingufei paidu decoction(清肺排毒汤,QFPD)treatment in the acute phase shows long-term benefits for coronavirus disease 2019-associated sequelae.The 10 databases will be retrieved.Every reference list of related trials and gray literature will be searched as well.Study screening,data extraction,and risk of bias evaluation will be performed by two reviewers(CUI Hanjin and FAN Rong).Data analysis will be conducted by using STATA(version 14).Statistical heterogeneity will be explored by a standardχ2 test with a significance level of P<0.10.Funnel plots,Egger’s&Begg’s test,and Trim and Fill analysis will be used for publication bias assessment.The results of the present Meta-analysis and systematic review will be disseminated via peer-review journal publication.Ethical approval is not required,as this Meta-analysis will not contain any individual patient data.This systematic review has been registered on PROSPERO(registration number:CRD42021246937)on 15 April 2021. | FAN Rong HE Haoyu TANG Tao CUI Hanjin | 2023 | Journal of Traditional Chinese Medicine2023，43，6： | 0 |
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