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Multi-Objective Optimization of Aluminum Alloy Electric Bus Frame Connectors for Enhanced Durability

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Computer Modeling in Engineering & Sciences 2024年第7期140卷 735-755页

作者： Wenjun Zhou Mingzhi Yang Qian Peng Yong Peng kui wang Qiang Xiao Key Laboratory of Traffic Safety on Track Ministry of EducationSchool of Traffic&Transportation EngineeringCentral South UniversityChangsha410018China School of Mechanical and Automotive Engineering Xiamen University of TechnologyXiamen361024China

The widespread adoption of aluminumalloy electric buses,known for their energy efficiency and eco-friendliness,faces a challenge due to the aluminum frame’s susceptibility to deformation compared to *** issue is further exacerbated by the stringent requirements imposed by the flammability and explosiveness of batteries,necessitating robust frame *** study aims to optimize the connectors of aluminum alloy bus frames,emphasizing durability,energy efficiency,and *** research delves into Multi-Objective Coordinated Optimization(MCO)techniques for lightweight design in aluminum alloy bus body *** goal is to enhance lightweighting,reinforce energy absorption,and improve deformation resistance in connector *** typical aluminum alloy connectors were selected and a design optimization platform was built for their MCO using a variety of software and ***,through three-point bending experiments and finite element analysis on three types of connector components,we identified optimized design parameters based on deformation ***,employing Optimal Latin hypercube design(OLHD),parametric modeling,and neural network approximation,we developed high-precision approximate models for the design parameters of each connector component,targeting energy absorption,mass,and logarithmic ***,utilizing the Archive-based Micro Genetic Algorithm(AMGA),Multi-Objective Particle Swarm Optimization(MOPSO),and Non-dominated SortingGenetic Algorithm(NSGA2),we explored optimized design solutions for these joint ***,we simulated joint assembly buckling during bus rollover crash scenarios to verify and analyze the optimized solutions in three-point bending *** joint component showcased a remarkable 30%–40%mass reduction while boosting energy *** design optimization method exhibits high efficiency and *** contemporary automation technology,the design optimiza

关键词： Aluminum connectors three-point bending simulation parametric design model multi-objective collaborative optimization

Long-wave infrared emission properties of strain-balanced InAs/InxGa1-xAsySb1-y type-Ⅱ superlattice on different substrates

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Rare Metals 2024年第7期43卷 3194-3204页

作者： Chao Shi Xuan Fang Hong-Bin Zhao Deng-kui wang Xi Chen Dan Fang Dong-Bo wang Xiao-Hua wang Jin-Hua Li State Key Laboratory of High Power Semiconductor Lasers School of PhysicsChangchun University of Science and Technology State Key Laboratory of Advanced Materials for Smart Sensing China General Research Institute for Nonferrous Metals Department of Opto-Electronic Information Science School of Materials Science and EngineeringHarbin Institute of Technology

High-performance type-Ⅱ superlattices of Ⅲ-Ⅴsemiconductor materials play an important role in the development and application of infrared optoelectronic *** the quality of epitaxial materials and clarifying the luminescent mechanism are of great significance for practic al applic *** this work,strain-balanced and high-quality In As/InxGa1-xAsySb1-ysuperlattices without lattice mismatch were achieved on InAs and GaSb substrates *** grown on In As substrate could exhibit higher crystal quality and surface flatness based on high-resolution X-ray diffraction（HRXRD） and atomic force microscopy（AFM） measurements' ***,the strain distribution phenomenon from geometric phase analysis indicates that fluctuations of alloy compositions in superlattices on GaSb substrate are more *** addition,the optical properties of superlattices grown on different substrates are discussed *** of the difference in fluctuations of element composition and interface roughness of superlattices on different substrates,the superlattices grown on In As substrate would have higher integral intensity and narrower full-width at half maximum of long-wave infrared ***,the thermal quenching of emission intensity indicates that the superlattices grown on the In As substrate have better recombination ability,which is beneficial for increasing the operating temperature of infrared optoelectronic devices based on this type of superlattices.

关键词： Photoluminescence Alloy compositions fluctuations InAs(Sb)/In x Ga 1− x As y Sb 1− y Type-II superlattice Substrate

Catalyst-free electrochemical dearomatization of pyridine derivatives

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Green Synthesis and Catalysis

Green Synthesis and Catalysis 2024年第2期5卷 136-139页

作者： kui wang Yingjun Tian Baoying Li Ling wang Wei Gao Xiaofei Jia Ruiming wang Yanping Zhu Jianbin Chen Chen Shandong Provincial Key Laboratory of Molecular Engineering State Key Laboratory of Biobased Material and Green PapermakingSchool of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOECollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China State Key Laboratory of Biobased Material and Green Papermaking School of BioengineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug EvaluationMinistry of EducationCollaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of ShandongYantai UniversityYantai 264005China

We demonstrated herein an electrochemical dearomatizative alkylation of Katritzky salts,wherein Katritzky salts were harnessed as both radical acceptors and donors.A wide range of privileged dihydropyridine scaffolds was constructed with good to excellent *** voltammetry(CV)and electron paramagnetic resonance(EPR)results confirmed the key intermediates-dihydropyridine radicals and gram-scale reaction highlighted the practical and sustainable feature of the newly developed protocol.

关键词： Dearomatization Electrosynthesis Katritzky salts Dihydropyridine

Magnetic-biased chiral molecules enabling highly oriented photovoltaic perovskites

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National Science Review 2024年第2期11卷 221-230页

作者： Jing Chen Caner Deger Zhen-Huang Su Kai-Li wang Guang-Peng Zhu Jun-Jie Wu Bing-Chen He Chun-Hao Chen Tao wang Xing-Yu Gao Ilhan Yavuz Yan-Hui Lou Zhao-kui wang Liang-Sheng Liao Institute of Functional Nano&Soft Materials(FUNSOM) Laboratory of Advanced Negative Carbon TechnologiesSoochow University Department of Physics Marmara University Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Advanced Research InstituteChinese Academy of Sciences College of Energy Soochow Institute for Energy and Materials Innovations Soochow University Macao Institute of Materials Science and Engineering Macau University of Science and Technology

The interaction between sites A, B and X with passivation molecules is restricted when the conventional passivation strategy is applied in perovskite（ABX3） photovoltaics. Fortunately, the revolving A-site presents an opportunity to strengthen this interaction by utilizing an external field. Herein, we propose a novel approach to achieving an ordered magnetic dipole moment, which is regulated by a magnetic field via the coupling effect between the chiral passivation molecule and the A-site（formamidine ion） in *** strategy can increase the molecular interaction energy by approximately four times and ensure a well-ordered molecular arrangement. The quality of the deposited perovskite film is significantly optimized with inhibited nonradiative recombination. It manages to reduce the open-circuit voltage loss of photovoltaic devices to 360 mV and increase the power conversion efficiency to 25.22%. This finding provides a new insight into the exploration of A-sites in perovskites and offers a novel route to improving the device performance of perovskite photovoltaics.

关键词： perovskite photovoltaics magnetic moment A-site regulation chiral molecules

Hydrogen-rich water alleviates constipation by attenuating oxidative stress through the sirtuin1/nuclear factor-erythroid-2-related factor 2/heme oxygenase-1 signaling pathway

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World Journal of Gastroenterology 2024年第20期30卷 2709-2725页

作者： Kai-Di Chen kui-Ling wang Chen Chen Yi-Jia Zhu Wen-Wen Tang Yu-Ji wang Ze-Peng Chen Lin-Hai He Yu-Gen Chen Wei Zhang Jiangsu Province Hospital of Chinese Medicine The Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina The No.1 Clinical Medical College Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina Department of Colorectal Surgery Jiangsu Province Hospital of Chinese MedicineThe Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina Jiangsu Province Key Laboratory of Tumor Systems Biology and Chinese Medicine The Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina Jiangsu Collaborative Innovation Center of Chinese Medicine in Prevention and Treatment of Tumor The Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina

BACKGROUND Constipation,a highly prevalent functional gastrointestinal disorder,induces a significant burden on the quality of patients'life and is associated with substantial healthcare ***,identifying efficient therapeutic modalities for constipation is of paramount *** stress is a pivotal contributor to colonic dysmotility and is the underlying pathology responsible for constipation ***,we postulate that hydrogen therapy,an emerging and promising intervention,can serve as a safe and efficacious treatment for *** To determine whether hydrogen-rich water(HRW)alleviates constipation and its potential *** Constipation models were established by orally loperamide to Sprague-Dawley *** freely consumed HRW,and were recorded their 24 h total stool weight,fecal water content,and charcoal propulsion *** samples were subjected to 16S rDNA gene *** non-targeted metabolomic analysis,malondialdehyde,and superoxide dismutase levels were *** tissues were stained with hematoxylin and eosin,Alcian blue-periodic acid-Schiff,reactive oxygen species(ROS)immunofluorescence,and immunohistochemistry for cell growth factor receptor kit(c-kit),PGP 9.5,sirtuin1(SIRT1),nuclear factor-erythroid-2-related factor 2(Nrf2),and heme oxygenase-1(HO-1).Quantitative real-time PCR and western blot analysis were conducted to determine the expression level of SIRT1,Nrf2 and HO-1.A rescue experiment was conducted by intraperitoneally injecting the SIRT1 inhibitor,EX527,into constipated ***460 cells were induced with H2O2 and treated with the metabolites to evaluate ROS and SIRT1 *** HRW alleviated constipation symptoms by improving the total amount of stool over 24 h,fecal water content,charcoal propulsion rate,thickness of the intestinal mucus layer,c-kit expression,and the number of intestinal *** modulated intestinal microbiota imbalance and abnormaliti

关键词： Hydrogen-rich water Constipation Sirtuin1 Oxidative stress Gut microbiota Serum metabolites

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张曼君给中国戏曲带来了什么

四川戏剧 2024年第2期 4-13页

作者：王馗中国艺术研究院戏曲研究所

张曼君以一剧一品、一戏一格的精良品质成为新世纪以来最负盛名的导演艺术家之一。她的创作以《试妻》《山歌情》、《马前泼水》《十二月等郎》、《花儿声声》作为标志,分别在三个阶段呈现出三种完全不同的创作方法,文学思维、形象思维... 详细信息

张曼君以一剧一品、一戏一格的精良品质成为新世纪以来最负盛名的导演艺术家之一。她的创作以《试妻》《山歌情》、《马前泼水》《十二月等郎》、《花儿声声》作为标志,分别在三个阶段呈现出三种完全不同的创作方法,文学思维、形象思维、舞台思维、剧场思维构成了她创作中的“导演四法”,让她以独特的创造确立作品独立的艺术品格,鲜明地展示着她在戏曲现代化进程中集大成的艺术贡献。

关键词：张曼君导演四法现代戏曲

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青少年外貌焦虑问卷的编制和信效度检验

中国临床心理学杂志 2024年第2期32卷 289-294页

作者：张红红王葵中国科学院心理健康重点实验室中国科学院心理研究所北京100101 中国科学院大学北京100049 东营市东营区第二中学东营257086

目的:编制适合我国青少年的外貌焦虑问卷并对其信效度进行检验。方法:采用焦点小组讨论法和访谈法产生初始问卷共46个条目,并由5名专家评估其内容效度。对422名中学生(女生占51.7%,样本1)施测青少年外貌焦虑初始问卷并进行项目分析和探... 详细信息

目的:编制适合我国青少年的外貌焦虑问卷并对其信效度进行检验。方法:采用焦点小组讨论法和访谈法产生初始问卷共46个条目,并由5名专家评估其内容效度。对422名中学生(女生占51.7%,样本1)施测青少年外貌焦虑初始问卷并进行项目分析和探索性因素分析。对1205名中学生(女生占55.1%,样本2)施测正式版青少年外貌焦虑问卷、体像忧虑量表、二维自尊量表、负性情绪量表和生活满意度量表,进行验证性因素分析,并检验其信效度。间隔6个月后对来自样本2的663名青少年(样本3)进行青少年外貌焦虑问卷重测。结果:根据样本1分析结果删除了25个条目,最终形成了21题项的青少年外貌焦虑问卷。该问卷包含三个因子:外貌信念(11条目)、外貌修饰(5条目)和外貌关注(5条目)。对样本2的验证性因素分析支持量表的三因子结构,且发现总问卷的Cronbach’s α系数为0.929。问卷总分与体像忧虑量表总分的相关达0.890,支持问卷的效标效度;问卷总分与负性情绪(r=0.49)、自尊(r=-0.53)及生活满意度(r=-0.34)均有显著相关(P<0.01),支持其聚合效度。对样本3进行分析,发现间隔6个月后青少年外貌焦虑问卷的重测信度为0.684。结论:本研究编制的青少年外貌焦虑问卷具有良好的信效度,可用于测量我国青少年的外貌焦虑水平。

关键词：外貌焦虑信度效度青少年

退役晶硅光伏组件中材料物质回收技术现状分析与建议

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中南大学学报（自然科学版） 2024年第6期55卷 2117-2128页

作者：王魁李金惠刘丽丽清华大学环境学院北京100084 青海大学财经学院青海西宁810016

退役晶硅光伏组件中同时存在有价值的和对环境有害的材料物质。焚烧和填埋的方式处理退役晶硅光伏组件是不适当的,这不符合光伏技术作为绿色清洁能源技术的理念。反之,将退役晶硅光伏组件中含有的材料物质回收再利用则会带来环境和经济... 详细信息

退役晶硅光伏组件中同时存在有价值的和对环境有害的材料物质。焚烧和填埋的方式处理退役晶硅光伏组件是不适当的,这不符合光伏技术作为绿色清洁能源技术的理念。反之,将退役晶硅光伏组件中含有的材料物质回收再利用则会带来环境和经济效益,有利于光伏行业的可持续发展。以实现退役晶硅光伏组件中材料物质的高值回收为目标,本文通过综述国内外相关文献,总结分析组件中不同材料物质的现有回收技术的优点和缺点,在此基础上,提出退役晶硅光伏组件中材料物质综合回收的技术路径。基于晶硅光伏组件的结构和材料特性,按照一定的程序组合使用物理处理、热处理、化学处理方法实现组件中不同材料物质的高值回收。首先,通过简单拆卸回收铝边框和接线盒。其次,通过热辅助物理剥离回收高值玻璃和纯度较高的背板,然后热解EVA以回收其中蕴含的能量。第三,通过湿法冶金或火法冶金处理硅电池碎片和焊带,回收其中的硅和金属元素。这些建议为光伏行业开发低成本、绿色、高效的退役晶硅光伏组件回收工艺提供了参考。

关键词：退役完整光伏组件破碎光伏组件晶硅回收材料物质

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PBX/Knotted 1 homeobox-2(PKNOX2)is a novel regulator of myocardial fibrosis

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2231-2249页

作者： Liang Chen Haotong Li Xiaorui Liu Ningning Zhang kui wang Anteng Shi Hang Gao Deniz Akdis Ardan MSaguner Xinjie Xu Elena Osto Willem Van de Veen Guangyu Li Antoni Bayés-Genís Firat Duru Jiangping Song Xiangjie Li Shengshou Hu State Key Laboratory of Cardiovascular Disease Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingP.R.China School of Statistics and Data Science Nankai UniversityTianjinChina Department of Cardiology University Heart CenterUniversity Hospital Zurich and University of ZurichZurichSwitzerland Institute for Clinical Chemistry University Hospital Zurich and University of ZürichZurichSwitzerland Swiss Institute of Allergy and Asthma Research(SIAF) University of ZurichDavosSwitzerland Heart Institute Hospital Universitari Germans Trias i PujolBadalonaCIBERCVSpain

Much effort has been made to uncover the cellular heterogeneities of human hearts by single-nucleus RNA ***,the cardiac transcriptional regulation networks have not been systematically described because of the limitations in detecting transcription *** this study,we optimized a pipeline for isolating nuclei and conducting single-nucleus RNA sequencing targeted to detect a higher number of cell signal genes and an optimal number of transcription *** this unbiased protocol,we characterized the cellular composition of healthy human hearts and investigated the transcriptional regulation networks involved in determining the cellular identities and functions of the main cardiac cell *** in fibroblasts,a novel regulator,PKNOX2,was identified as being associated with physiological fibroblast activation in healthy *** validate the roles of these transcription factors in maintaining homeostasis,we used single-nucleus RNA-sequencing analysis of transplanted failing hearts focusing on fibroblast *** trajectory analysis suggested that PKNOX2 was abnormally decreased from fibroblast activation to pathological myofibroblast *** gain-and loss-of-function in vitro experiments demonstrated the inhibitory role of PKNOX2 in pathological fibrosis ***,fibroblast-specific overexpression and knockout of PKNOX2 in a heart failure mouse model induced by transverse aortic constriction surgery significantly improved and aggravated myocardial fibrosis,*** summary,this study established a high-quality pipeline for single-nucleus RNA-sequencing analysis of heart *** this optimized protocol,we described the transcriptional regulation networks of the main cardiac cell subtypes and identified PKNOX2 as a novel regulator in suppressing fibrosis and a potential therapeutic target for future translational studies.

关键词： NOX2 homeostasis fibrosis