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Neural Regeneration Research 2024年第5期19卷 1092-1097页

作者： Qian Zhang Yao Jing Qiuyuan Gong Lin Cai Ren Wang Dianxu Yang Liping Wang Meijie qu Hao Chen Yaohui Tang Hengli Tian Jun Ding zhiming Xu Department of Gerontology Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurosurgery Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina school of Biomedical engineering and Med-X Research Institute Shanghai Jiao Tong UniversityShanghaiChina Department of Neurology Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina

Endorepellin plays a key role in the regulation of angiogenesis,but its effects on angiogenesis after traumatic brain injury are *** study explored the effects of endorepellin on angiogenesis and neurobehavioral outcomes after traumatic brain injury in *** were randomly divided into four groups:sham,controlled cortical impact only,adeno-associated virus(AAV)-green fluorescent protein,and AAV-shEndorepellin-green fluorescent protein *** the controlled cortical impact model,the transduction of AAV-shEndorepellin-green fluorescent protein downregulated endorepellin while increasing the number of CD31+/Ki-67+proliferating endothelial cells and the functional microvessel density in mouse *** changes resulted in improved neurological function compared with controlled cortical impact *** blotting revealed increased expression of vascular endothelial growth factor and angiopoietin-1 in mice treated with AAV-shEndorepellin-green fluorescent *** radiation angiography showed that endorepellin downregulation promoted angiogenesis and increased cortical neovascularization,which may further improve neurobehavioral ***,an in vitro study showed that downregulation of endorepellin increased tube formation by human umbilical vein endothelial cells compared with a *** analysis found that endorepellin downregulation may mediate angiogenesis by activating vascular endothelial growth factor-and angiopoietin-1-related signaling pathways.

关键词： angiogenesis controlled cortical impact endorepellin neurological function traumatic brain injury

Mapping Network-Coordinated Stacked Gated Recurrent Units for Turbulence Prediction

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IEEE/CAA Journal of Automatica Sinica 2024年第6期11卷 1331-1341页

作者： zhiming Zhang Shangce Gao MengChu Zhou Mengtao Yan Shuyang Cao Faculty of engineering University of ToyamaToyama 930-8555Japan Helen and John C.Hartmann Department of Electrical and Computer engineering New Jersey Institute of TechnologyNewark NJ 07102 USA Gaoling school of Artificial Intelligence Renmin University of ChinaBeijing 100872China College of civil engineering Tongji UniversityShanghai 200092China IEEE

Accurately predicting fluid forces acting on the sur-face of a structure is crucial in engineering ***,this task becomes particularly challenging in turbulent flow,due to the complex and irregular changes in the flow *** this study,we propose a novel deep learning method,named mapping net-work-coordinated stacked gated recurrent units(MSU),for pre-dicting pressure on a circular cylinder from velocity ***-cally,our coordinated learning strategy is designed to extract the most critical velocity point for prediction,a process that has not been explored *** our experiments,MSU extracts one point from a velocity field containing 121 points and utilizes this point to accurately predict 100 pressure points on the *** method significantly reduces the workload of data measure-ment in practical engineering *** experimental results demonstrate that MSU predictions are highly similar to the real turbulent data in both spatio-temporal and individual ***,the comparison results show that MSU predicts more precise results,even outperforming models that use all velocity field *** with state-of-the-art methods,MSU has an average improvement of more than 45%in various indicators such as root mean square error(RMSE).Through comprehensive and authoritative physical verification,we estab-lished that MSU’s prediction results closely align with pressure field data obtained in real turbulence *** confirmation underscores the considerable potential of MSU for practical applications in real engineering *** code is available at https://***/zhangzm0128/MSU.

关键词： Convolutional neural network deep learning recurrent neural network turbulence prediction wind load predic-tion.

Ballistic performances of the hourglass lattice sandwich structures under high-velocity fragments

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Defence Technology（防务技术） 2024年第1期31卷 312-325页

作者： He-xiang Wu Jia qu Lin-zhi Wu Key Laboratory of Advanced Ship Materials and Mechanics College of Aerospace and Civil EngineeringHarbin Engineering UniversityHarbin150001China school of civil engineering Northeast Forestry UniversityHarbin150040China

In this paper,the numerical simulation method is used to study the ballistic performances of hourglass lattice sandwich structures with the same mass under the vertical incidence of *** is paid to elucidating the influences of rod cross-section dimensions,structure height,structure layer,and rod inclination angle on the deformation mode,ballistic performances,and ability to change the ballistic direction of *** results show that the ballistic performances of hourglass lattice sandwich structures are mainly affected by their structural *** this respect,structural parameters optimization of the hourglass lattice sandwich structures enable one to effectively improve their ballistic limit velocity and,consequently,ballistic performances.

关键词： Hourglass lattice sandwich structures Ballistic performances high-velocity Finite element analysis

Experimental study on workability and permeability of sandy soils conditioned with thickened foam

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Journal of Rock Mechanics and Geotechnical engineering 2024年第2期16卷 532-544页

作者： Zhiyao Feng Shuying Wang Tongming qu Xiangcou Zheng Fanlin Ling school of civil engineering Central South UniversityChangsha410075China Tunnel and Underground engineering Research Center Central South UniversityChangsha410075China Department of civil and Environmental engineering The Hong Kong University of Science and TechnologyClearwater BayKowloon999077Hong KongChina Geo-engineering Section Delft University of TechnologyDelft999025Netherlands

Water spewing and muck plugging often occur during earth pressure balance(EPB)shield machines tunnelling in water-rich sandy strata,even though the conventional foam has been employed to condition sandy *** this study,a novel thickened foaming agent suitable for EPB shield tunnelling in water-rich sandy strata is *** contrast to conventional foam-conditioned sands,the thickened foam-conditioned sand has a low permeability due to the consistent filling of soil pores with the thickened foam,and the initial permeability coefficient decreases by approximately two orders of *** also exhibits a suitable workability,which is attributed to the enhanced capability of the thickened foam to condition sandy *** addition,the effect of concentration on the stability of the foam is explained by the Gibbs-Marangoni effect,and conditioning mechanisms for the thickened foam on sands are discussed from the evolution of foam bubbles.

关键词： Earth pressure balance(EPB)shield Thickened foam Foam-conditioned sand Permeability Workability

Unravelling the nature of the active species as well as the Mn doping effect over gamma-Al_(2)O_(3) catalyst for eliminating AsH_(3) and PH_(3)

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Journal of Environmental Sciences 2024年第2期136卷 213-225页

作者： Bowen Xu Jiaxin qu Xueqian Wang Langlang Wang Yu Pu Ping Ning Yibing Xie Yixing Ma Qiang Ma Faculty of Environmental Science and engineering Kunming University of Science and TechnologyKunming 650500China school of Architecture and civil engineering Chengdu UniversityChengdu 610106China

To investigate the enhancing effect of Mn on the performance of simultaneous catalytic oxidation of AsH_(3)and PH_(3)by CuO-Al_(2)O_(3)in a reducing atmosphere under micro-oxygen conditions,Cu-Mn modifiedγ-Al_(2)O_(3)catalysts were *** characteristics of the catalysts showed that Mn reduced the crystallinity of the active CuO component,increased the number of oxygen vacancies and acidic sites on the catalyst surface,enhanced the mobility of surface oxygen,and the interaction between copper and manganese promoted the redox cycling ability of the catalysts and improved their oxidation performance,which increased the conversion frequency(TOF)by 2.54×10^(-2)to 3.07×10^(-2)sec^(-1).On the other hand,the introduction of Mn reduced the production of phosphate and As_(2)O_(3)on the catalyst surface by30.96%and 44.9%,which reduced the coverage and inerting of the active sites by phosphate and As_(2)O_(3),resulting in an 8 hr(6 hr)improvement in the stability of PH_(3)(AsH_(3))removal.

关键词： AsH_(3)-PH_(3)removal Oxygen activation Mn doping Stability enhancement

An MPI parallel DEM-IMB-LBM framework for simulating fluid-solid interaction problems

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Journal of Rock Mechanics and Geotechnical engineering 2024年第6期16卷 2219-2231页

作者： Ming Xia Liuhong Deng Fengqiang Gong Tongming qu Y.T.Feng Jin Yu Hunan Key Laboratory of Geomechanics and engineering Safety Xiangtan UniversityXiangtan411105China school of civil engineering Southeast UniversityNanjing211189China Department of civil and Environmental engineering Hong Kong University of Science and TechnologyHong KongChina Zienkiewicz Centre for Computational engineering Swansea UniversitySwanseaSA18ENUK Fujian Research Center for Tunneling and Urban Underground Space engineering Huaqiao UniversityXiamen361021China

The high-resolution DEM-IMB-LBM model can accurately describe pore-scale fluid-solid interactions,but its potential for use in geotechnical engineering analysis has not been fully unleashed due to its prohibitive computational *** overcome this limitation,a message passing interface(MPI)parallel DEM-IMB-LBM framework is proposed aimed at enhancing computation *** framework utilises a static domain decomposition scheme,with the entire computation domain being decomposed into multiple subdomains according to predefined processors.A detailed parallel strategy is employed for both contact detection and hydrodynamic force *** particular,a particle ID re-numbering scheme is proposed to handle particle transitions across sub-domain *** benchmarks are conducted to validate the accuracy and overall performance of the proposed ***,the framework is applied to simulate scenarios involving multi-particle sedimentation and submarine *** numerical examples effectively demonstrate the robustness and applicability of the MPI parallel DEM-IMB-LBM framework.

关键词： Discrete element method(DEM) Lattice Boltzmann method(LBM) Immersed moving boundary(IMB) Multi-cores parallelization Message passing interface(MPI) CPU Submarine landslides

Impacts of Comorbidity and Mental Shock on Organic Micropollutants in Surface Water During and After the First Wave of COVID-19 Pandemic in Wuhan (2019–2021), China

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engineering 2024年第6期37卷 40-48页

作者： Jian Zhao Jin Kang Xiaofeng Cao Rui Bian Gang Liu Shengchao Hu Xinghua Wu Chong Li Dianchang Wang Weixiao Qi Cunrui Huang Huijuan Liu Jiuhui qu Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Hubei Provincial Research Institute of Environmental Science Wuhan 430072China Key Laboratory of Drinking Water Science and Technology Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Sanitary engineering Department of Water ManagementFaculty of Civil Engineering and GeosciencesDelft University of TechnologyDelft 2600 GAThe Netherlands China Three Gorges Corporation Wuhan 430010China Vanke school of Public Health Tsinghua UniversityBeijing 100084China

The first pandemic wave of coronavirus disease 2019(COVID-19)induced a considerable increase in several antivirals and antibiotics in surface *** common symptoms of COVID-19 are viral and bacterial infections,while comorbidities(e.g.,hypertension and diabetes)and mental shock(e.g.,insomnia and anxiety)are ***,little is known about the long-term impacts of comorbidities and mental shock on organic micropollutants(OMPs)in surface ***,we monitored 114 OMPs in surface water and wastewater treatment plants(WWTPs)in Wuhan,China,between 2019 and *** pandemic-induced OMP pollution in surface water was confirmed by significant increases in 26 OMP *** increases in four antihypertensives and one diabetic drug suggest that the treatment of comorbidities may induce OMP ***,cotinine(a metabolite of nicotine)increased 155 times to 187 ngL1,which might be associated with increased ***,the increases in zolpidem and sulpiride might be the result of worsened insomnia and ***,it is reasonable to note that mental-health protecting drugs/behavior also contributed to OMP *** the observed OMPs,telmisartan,lopinavir,and ritonavir were associated with significantly higher ecological risks because of their limited WWTP-removal rate and high *** study provides new insights into the effects of comorbidities and mental shock on OMPs in surface water during a pandemic and highlights the need to monitor the fate of related pharmaceuticals in the aquatic environment and to improve their removal efficiencies in WWTPs。

关键词： Coronavirus disease 2019 Comorbidities Mental shock Micropollutant Surface water

quantifying the impacts of COVID-19 on Sustainable Development Goals using machine learning models

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Fundamental Research 2024年第4期4卷 890-897页

作者： Chenyang Shuai Bu Zhao Xi Chen Jianguo Liu Chunmiao Zheng Shen qu Jian-Ping Zou Ming Xu school of Management Science and Real Estate Chongqing UniversityChongqing 400044China bschool for Environment and Sustainability University of MichiganAnn ArborMI 489United Stats Michigan Institute for Computational Discovery&engineering University of MichiganAnn ArborMI 48109United States College of Economics and Management Southwest UniversityChongqing 400044China Center for Systems Integration and Sustainability Department of Fisheries and WildlifeMichigan State UniversityEast LansingMI 48824United States Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China school of Management and Economics Beijing Institute of TechnologyBeijing 100081China Center for Energy&Environmental Policy Research Beijing Institute of TechnologyBejing 100081China Key Laboratory of Jiangxi Province for Persistent Plutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China Department of civil and Environmental engineering University of MichiganAnn ArborMI 48109United States

The COvID-19 pandemic has posed severe threats to global sustainable ***,a comprehensive quantitative assessment of the impacts of COVID-19 on Sustainable Development Goals(SDGs)is still *** research quantified the post-COVID-19 SDG progress from 2020 to 2024 using projected GDP growth and population and machine learning models including support vector machine,random forest,and extreme gradient *** results show that the overall SDG performance declined by 7.7%in 2020 at the global scale,with 12 socioeconomic SDG performance decreasing by 3.0%-22.3%and 4 environmental SDG performance increasing by 1.6%-9.2%.By 2024,the progress of 12 SDGs will lag behind for one to eight years compared to their pre-COVID-19 trajectories,while extra time will be gained for 4 environment-related ***,the pandemic will cause more impacts on countries in emerging markets and developing economies than those on advanced economies,and the latter will recover more quickly to be closer to their pre-covID-19 trajectories by ***-COVID-19 economic recovery should emphasize in areas that can help decouple economic growth from negative environmental *** results can help government and non-state stakeholders identify critical areas for targeted policy to resume and speed up the progress to achieve SDGs by 2030.

关键词： Sustainable development goals COVID-19 Machine learning Global development Sustainable development assessment

偏高岭土-高炉矿渣地聚合物路面修补砂浆的耐久性试验研究

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铁道科学与工程学报 2024年第8期21卷 3213-3224页

作者：周英超但汉成马志明湖南中大设计院有限公司湖南长沙410075 中南大学土木工程学院湖南长沙410075 高速铁路建造技术国家工程研究中心湖南长沙410075

偏高岭土(MK)和高炉矿渣(GGBS)是制备地聚合物常用的固体原材料,由两者复合制备的地聚合物具有常温固化,黏结强度高以及快硬早强的优点,能够作为修复材料,然而两者比例改变带来的修补材料的耐久性变化尚未得到充分理解。针对该研究的不... 详细信息

偏高岭土(MK)和高炉矿渣(GGBS)是制备地聚合物常用的固体原材料,由两者复合制备的地聚合物具有常温固化,黏结强度高以及快硬早强的优点,能够作为修复材料,然而两者比例改变带来的修补材料的耐久性变化尚未得到充分理解。针对该研究的不足,通过设置不同的GGBS/(MK+GGBS)值(质量比:0,20%,40%,60%,80%,100%),测试地聚合物修补砂浆的吸水量、接触角试验、目视观察地聚合物的泛碱程度以及测试地聚合物泛碱前后的力学性能变化对地聚合物的抗泛碱能力的影响,将地聚合物浸入0.5M(mol/L)的HCl溶液中1,3和5 d,通过目视观察以及测试地聚合物的质量和强度损失,对地聚合物的抗酸性能做出评估。热重(TG)、傅里叶红外光谱(FTIR)和X射线衍射(XRD)被用于对高Ca体系和低Ca体系的耐酸机理做出讨论。另外,考虑到修补材料与基体的相容性同样重要,在干缩测试中以水泥为对照,在酸化测试中以黏结试件为对象,并测试地聚合物和水泥的热变形,以评估两者的相容性。研究结果表明,MK和GGBS比例合适时,地聚合物拥有更为致密的结构,表现出较低的吸水量和泛碱程度。MK含量较高时,产生的地聚合物凝胶有更强的耐酸性。适当增加GGBS,能够通过提升结构的致密性使得修补材料的耐久性得到提升。研究成果可为刚性路面的高性能耐久的快速修补材料研发提供技术参考。

关键词：偏高岭土高炉矿渣地聚合物修补砂浆路面病害