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增层框架-摇摆墙体系抗震性能研究

沈阳建筑大学学报（自然科学版） 2024年第4期40卷 586-596页

作者：朱春阳胡珂鑫孙丽张力允王玉婵沈阳建筑大学土木工程学院辽宁沈阳110168

目的基于既有建筑的结构无法满足使用需求现状,通过质量调节及变形模式控制实现结构自振周期延长与损伤可控。方法提出增层框架-摇摆墙体系,对该结构进行理论分析,研究增层对整体结构地震效应的影响机理;利用SAP2000平台建立五个有限元... 详细信息

目的基于既有建筑的结构无法满足使用需求现状,通过质量调节及变形模式控制实现结构自振周期延长与损伤可控。方法提出增层框架-摇摆墙体系,对该结构进行理论分析,研究增层对整体结构地震效应的影响机理;利用SAP2000平台建立五个有限元模型,基于规范反应谱开展参数敏感性、静力弹塑性和动力弹塑性分析;并在此基础上,提出摇摆墙简化力学模型。结果增层的质量及高度对整体结构地震作用影响显著;与原框架相比,增层后结构基本自振周期最大延长31.7%,最大弹塑性极限位移响应降低11.5%,最大位移角响应降低20.2%,结构变形不均匀性降低22.0%;与框架-摇摆墙相比,增层后摇摆墙弯矩在弹塑性极限状态下降低33.9%。结论合理设置增层框架-摇摆墙可以小幅降低结构整体地震作用,减小结构地震响应,对结构变形模式可实现有效控制;所建立的摇摆墙简化力学模型可合理反应地震作用下墙体弯矩分布,并使设计偏于安全。

关键词：增层框架框架-摇摆墙抗震性能动力学模型有限元分析

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软件工程人才培养智慧化平台设计与应用

信息与电脑 2024年第3期36卷 248-250页

作者：王宇婵张帆苏玉郑州工程技术学院信息工程学院河南郑州450044

为提高软件工程人才培养效率和质量,文章设计了一款软件工程人才培养智慧化平台。采用分层设计方法,结合人工智能算法,开发了包含课程管理、学生学习追踪、互动与反馈、数据分析与报告等功能模块的平台。为验证智慧化平台的有效性和性能... 详细信息

为提高软件工程人才培养效率和质量,文章设计了一款软件工程人才培养智慧化平台。采用分层设计方法,结合人工智能算法,开发了包含课程管理、学生学习追踪、互动与反馈、数据分析与报告等功能模块的平台。为验证智慧化平台的有效性和性能,采用专业的测试软件对该平台和传统平台进行功能测试和性能测试。结果表明,智慧化平台在功能覆盖率、错误发现率、系统吞吐量等多个关键指标上优于传统平台,验证了其在现代教育环境中的应用有效性和性能优势。

关键词：软件工程人才培养数据分析功能模块机器学习算法

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区县级医院学科发展竞争力指标体系研究

中国医院 2024年第5期28卷 37-40页

作者：石景芬王宇婵刘志会廖萱罗月刘军四川省医学科学院·四川省人民医院四川省成都市610072 成都市温江区人民医院四川省成都市611135

目的:构建一套科学实用的区县级医院学科发展竞争力评价指标。方法:基于PEST+SWOT分析法探索区县级医院学科发展关键要素及其运行机制,初筛学科发展竞争力指标体系;运用德尔菲法开展两轮专家咨询确定指标体系及权重。结果:该指标体系包... 详细信息

目的:构建一套科学实用的区县级医院学科发展竞争力评价指标。方法:基于PEST+SWOT分析法探索区县级医院学科发展关键要素及其运行机制,初筛学科发展竞争力指标体系;运用德尔菲法开展两轮专家咨询确定指标体系及权重。结果:该指标体系包括一级指标4个维度(医院管理及综合实力、人才队伍建设、科研创新、教育培训)、二级指标16个、三级指标38个。两轮专家咨询积极系数均为100%,各指标评分变异系数CV值均3.8,大多数指标得分4以上。结论:经专家反馈和统计检验,该指标体系具备科学性和实用性。

关键词： PEST+SWOT分析德尔菲法区县级医院学科发展指标体系

Willingness of returning migrant workers to purchase houses: A case study of 45 villages in Henan Province, China

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Regional Sustainability 2022年第2期3卷 133-145页

作者： wang yuchan GAO Genghe NING Xiaoju LI Yuanzheng NIU Ning GUO Yaqi Faculty of Economics Southern Federal UniversityRostov344680Russia School of Resources and Environment Henan University of Economics and LawZhengzhou450046China Academic Laboratory for Urban and Rural Spatial Data Mining of Henan Province Zhengzhou450046China

The willingness of returning migrant workers to purchase houses has an important impact on local *** present,there are few researches on the willingness of returning migrant workers to purchase *** existing researches mostly focus on the perspective of sociology and economics,and few studies are conducted from the perspective of *** on the survey data of 45 villages in Henan Province of China in 2019,this study used binary logistic method to study the influencing factors of the willingness of returning migrant workers to purchase *** willingness of returning migrant workers to purchase houses is affected by many factors,such as personal,family,village,and returning *** them,age and returning period are negatively correlated with the willingness of returning migrant workers to purchase *** such as years of education,years of working,and per capita income of village are positively correlated with the willingness of returning migrant workers to purchase *** migrant workers in plains and hilly areas are more willing to purchase houses than those in mountainous *** formation of the willingness to purchase houses is mainly related to economic foundation,age,marital status,and other *** migrant workers are becoming more willing to purchase houses,and the expected locations are mainly concentrated in the county *** the context of China’s high density of rural population and rapid urbanization,more returning migrant workers are expected to purchase houses in cities and towns for the sake of employment,marriage,children’s education,and access to public *** a result,there is an extensive market of potential purchasers,which affects the development of the local urban real estate industry and is of great significance for returning migrant workers to truly integrate into the ***,some returning migrant workers still choose to purchase houses in villages,mainly affect

关键词： Returning migrant workers House purchase willingness Binary logistic method Urbanization Henan Province

A Novel Poly(3-hexylthiophene) Engineered Interface for Electrochemical Monitoring of Ascorbic Acid During the Occurrence of Glutamate-Induced Brain Cytotoxic Edemas

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Research 2024年第1期2023卷 301-313页

作者： Zexuan Meng yuchan Zhang Lu Yang Shuang Zhao Qiang Zhou Jiajia Chen Jiuxi Sui Jian wang Lizhong Guo Luyue Chang Jialing He Guixue wang Guangchao Zang Institute of Life Science and Laboratory of Tissue and Cell BiologyLab Teaching and Management CenterChongqing Medical UniversityChongqing 400016China Key Laboratory for Biorheological Science and Technology of Ministry of Education State and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing UniversityChongqing 400030China Jinfeng Laboratory Chongqing 401329China Department of Pathophysiology Chongqing Medical UniversityChongqingChina

Although neuroelectrochemical sensing technology offers unique benefits for neuroscience research,its application is limited by substantial interference in complex brain environments while ensuring biosafety *** this study,we introduced poly(3-hexylthiophene)(P3HT)and nitrogen-doped multiwalled carbon nanotubes(N-MWCNTs)to construct a composite membrane-modified carbon fiber microelectrode(CFME/P3HT-N-MWCNTs)for ascorbic acid(AA)*** microelectrode presented good linearity,selectivity,stability,antifouling,and biocompatibility and exhibited great performance for application in neuroelectrochemical ***,we applied CFME/P3HT-N-MWCNTs to monitor AA release from in vitro nerve cells,ex vivo brain slices,and in vivo living rat brains and determined that glutamate can induce cell edema and AA *** also found that glutamate activated the N-methyl-d-aspartic acid receptor,which enhanced Na^(+) and Cl^(−) inflow to induce osmotic stress,resulting in cytotoxic edema and ultimately AA *** study is the first to observe the process of glutamate-induced brain cytotoxic edema with AA release and to reveal the *** work can benefit the application of P3HT in in vivo implant microelectrode construction to monitor neurochemicals,understand the molecular basis of nervous system diseases,and discover certain biomarkers of brain diseases.

关键词： release microelectrode Engine

Bacteroides ovatus-mediated CD27^(−)MAIT cell activation is associated with obesity-related T2D progression

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Cellular & Molecular Immunology 2022年第7期19卷 791-804页

作者： Yue Li Yi Yang Jin wang Peihong Cai Mei Li Xixiang Tang Ying Tan yuchan wang Fan Zhang Xiaofeng Wen Qiaoxing Liang Yuanpeng Nie Tufeng Chen Xiang Peng Xuemin He Yanhua Zhu Guojun Shi Wai WCheung Lai Wei Yanming Chen Yan Lu Department of Endocrinology&Metabolism Guangdong Provincial Key Laboratory of DiabetologyThe Third Affliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of Clinical Immunology The Third Affliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China VIP Medical Service Center The Third Affliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060China Department of Gastrointestinal Surgery The Third Affliated Hospital of Sun Yat-sen UniversityGuangzhou 510630China Department of Rheumatology The Sixth Affliated Hospital of Guangzhou Medical UniversityQingyuan People's HospitalQingyuan 511518China Division of Pediatric Nephrology Rady Children's HospitalUniversity of CaliforniaSan DiegoCA 92093-0831USA

Type 2 diabetes(T2D)is highly associated with ***,the factors that drive the transition from excessive weight gain to glucose metabolism disruption are still uncertain and seem to revolve around systemic immune ***-associated invariant T(MAIT)cells,which are innate-like T cells that recognize bacterial metabolites,have been reported to be altered in obese people and to lead to metabolic dysfunction during *** studying the immunophenotypes of blood MAIT cells from a cross-sectional cohort of obese participants with/without T2D,we found an elevation in CD27^(-)negative(CD27−)MAIT cells producing a high level of IL-17 under T2D obese conditions,which could be positively correlated with impaired glucose metabolism in obese *** further explored microbial translocation caused by gut barrier dysfunction in obese people as a triggering factor of MAIT cell ***,accumulation of the bacterial strain Bacteroides ovatus in the peripheral blood drove IL-17^(-)producing CD27−MAIT cell expansion and could be associated with T2D risk in obese ***,these results suggest that an aberrant gut microbiota–immune axis in obese people may drive or exacerbate ***,CD27−MAIT cell subsets and Bacteroides ovatus could represent targets for novel interventional *** findings extend current knowledge regarding the clinical relevance of body mass index(BMI)-associated variation in circulating MAIT cells to reveal the role of these cells in obesity-related T2D progression and the underlying cellular mechanisms.

关键词： type 2 diabetes obesity MAIT cells Bacteroides ovatus bacterial translocation

回流农民工预期购房区位选择及影响因素--以河南省45村为例

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地理科学 2022年第9期42卷 1600-1608页

作者：郭雅琪高更和王玉婵张明思河南财经政法大学资源与环境学院河南郑州450046 河南省城乡空间数据挖掘院士工作站河南郑州450046 城乡协调发展河南省协同创新中心河南郑州450046

基于河南省45村1072份田野调查数据,采用描述统计分析和多水平多元Logistic回归分析方法,探讨回流农民工的预期购房区位和影响因素。研究发现:中心地层级对回流农民工预期购房区位选择具有重要影响,但影响强度与回流者年龄相关,新生代... 详细信息

基于河南省45村1072份田野调查数据,采用描述统计分析和多水平多元Logistic回归分析方法,探讨回流农民工的预期购房区位和影响因素。研究发现:中心地层级对回流农民工预期购房区位选择具有重要影响,但影响强度与回流者年龄相关,新生代回流者偏向于较高层级中心地,而第一代回流者则青睐于低层级中心地。整体上,户籍所在地县城为回流农民工预期购房区位的首选区位,其次为地级市主城区和村庄,集镇和省城较少。个体特征、资金积累、成婚是影响预期购房区位选择的核心因素,村庄地理环境对预期购房区位选择具有重要影响。回流农民工具有较高的县城和城市购房居住预期,未来将是新型城镇化,尤其是就地城镇化的重要力量,应当稳定和降低城镇房价,以实现回流农民工真正的城镇融入。

关键词：农民工回流预期购房区位就地城镇化河南省

采用解析和数值方法分析浮动式矩形浮箱的波浪诱导载荷研究

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哈尔滨工程大学学报（英文版） 2024年第1期23卷 113-126页

作者： Sarat Chandra Mohapatra Iuri Baldaconi da Silva Bispo yuchan Guo C.Guedes Soares Center for Marine Technology and Ocean Engineering(CENTEC) Instituto Superior TécnicoUniversidade de LisboaLisboa 1049-001Portugal

A three-dimensional mathematical hydrodynamic model associated with surface wave radiation by a floating rectangular box-type structure due to heave,sway,and roll motions in finite water depth is investigated based on small amplitude water wave theory and linear structural *** analytical expressions for the radiation potentials,wave forces,and hydrodynamic coefficients are presented based on matched eigenfunction expansion method(MEFEM).The correctness of the analytical results of wave forces is compared with the construction of a numerical model using the open-source boundary element method code *** addition,the present result is compared with the existing published experimental results available in the *** effects of the different design parameters on the floating box-type rectangular structure are studied by analyzing the vertical wave force,horizontal wave force,torque,added mass,and damping coefficients due to the heave,sway,and roll motions,and the comparison analysis between the forces is also analyzed in ***,the effect of reflection and transmission coefficients by varying the structural width and drafts are analyzed.

关键词： Mathematical model MEFEM Box-type structure BEM code NEMOH Wave forces

微波联合金属离子对小麦胚芽蛋白功能特性及结构的影响

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食品科学 2024年第5期45卷 217-224页

作者：郭宇姜城红杨玉婵张瑶王东旭郭元新江苏科技大学粮食学院江苏省粮食生物加工工程研究中心江苏镇江212100

以小麦胚芽粉为原料,通过碱溶酸沉法提取小麦胚芽蛋白(wheat germ protein,WGP),采用微波和金属离子联合处理对WGP进行改性,测定改性前后WGP功能特性、结构和分子质量的变化。结果表明,与对照组相比,联合处理改性后的WGP溶解性提高了86.... 详细信息

以小麦胚芽粉为原料,通过碱溶酸沉法提取小麦胚芽蛋白(wheat germ protein,WGP),采用微波和金属离子联合处理对WGP进行改性,测定改性前后WGP功能特性、结构和分子质量的变化。结果表明,与对照组相比,联合处理改性后的WGP溶解性提高了86.61%,持水力、持油力分别提高了22.86%、82.16%,乳化性、乳化稳定性、起泡性分别提高120.90%、15.64%、116.91%,起泡稳定性相对降低。傅里叶变换红外光谱、扫描电子显微镜和十二烷基硫酸钠-聚丙烯酰胺凝胶电泳结果显示,联合处理改性后的WGP分子质量未见明显差异,结构更疏松,二级结构向着无序化方向进行,主要表现在β-转角、无规卷曲增加。联合处理对WGP的功能特性改善效果优于微波和金属离子单一处理。微波和金属离子联合处理使WGP具有良好的功能特性,赋予了WGP被开发成新型功能性食品的潜力。

关键词：小麦胚芽蛋白微波金属离子功能特性结构

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