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基于Meta分析的西方国家健身走项目研究述评

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上海体育学院学报 2015年第2期39卷 57-62,67页

作者：秦曼朱为模上海金融学院体育教学部上海201209 美国伊利诺伊大学香槟分校 61801

在回顾西方国家健身走项目开展情况的基础上,阐明健身走项目的锻炼目标、评价指标、干预方式及当前研究局限,综合评价不同干预变量。通过Meta分析及文献筛选发现:健身走项目对参与者步数、身体成分指数和体重具有中等程度的干预效果,对... 详细信息

在回顾西方国家健身走项目开展情况的基础上,阐明健身走项目的锻炼目标、评价指标、干预方式及当前研究局限,综合评价不同干预变量。通过Meta分析及文献筛选发现:健身走项目对参与者步数、身体成分指数和体重具有中等程度的干预效果,对腰围、收缩压和舒张压的影响较小;目标设定和奖励对参与者步数的增加具有正面影响,奖励对参与者身体成分指数变化也具有正面影响。

关键词：西方国家健身走干预 Meta分析述评

Limit state analysis of rigid retaining structures against seismically induced passive failure in heterogeneous soils

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 1095-1105页

作者： Jianfeng Zhou Changbing qin College of Civil Engineering Huaqiao UniversityXiamen362021China School of Civil Engineering Chongqing UniversityChongqing400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityChongqing400045China National Joint Engineering Research Center of Geohazards Prevention in the Reservoir Areas Chongqing UniversityChongqing400045China

Soils are not necessarily uniform and may present linearly varied or layered characteristics,for example the backfilled soils behind rigid retaining *** the presence of large lateral thrust imposed by arch bridge,passive soil failure is possible.A reliable prediction of passive earth pressure for the design of such wall is challenging in complicated soil strata,when adopting the conventional limit analysis *** order to overcome the challenge for generating a kinematically admissible velocity field and a statically allowable stress field,finite element method is incorporated into limit analysis,forming finiteelement upper-bound(FEUB)and finite-element lower-bound(FELB)***-static,original and modified pseudo-dynamic approaches are adopted to represent seismic acceleration *** generating feasible velocity and stress fields within discretized elements based on specific criteria,FEUB and FELB formulations of seismic passive earth pressure(coefficient K_(P))can be derived from work rate balance equation and stress *** to an interior point algorithm,optimal upper and lower bound solutions are *** proposed FEUB and FELB procedures are well validated by limit equilibrium as well as lower-bound and kinematic *** studies are carried out to investigate the effects of influential factors on seismic K_(P).Notably,true solution of K_(P) is well estimated based on less than 5%difference between FEUB and FELB solutions under such complex scenarios.

关键词： Retaining wall Passive earth pressure Earthquakes Finite-element limit-analysis methods

AI for Supporting the Freedom of Drawing

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Machine Intelligence Research 2024年第1期21卷 63-88页

作者： Xiaohua Sun Juexiao qin College of Design and Innovation Tongji UniversityShanghai 200082China

Artificial intelligence(AI)has recently been developing rapidly in image processing and *** is not only starting to take over repetitive and tedious tasks but is also involved in creative *** is one of the areas with the greatest potential for collaboration between humans and *** is an important approach to express various information,but due to the lack of appropriate knowledge and skills,ordinary people without long-time training are unable to draw *** there have been various attempts at human-AI collaboration in drawing,it is difficult for researchers to consider the wide variety of specific problems and develop univer-sal methods due to the openness,improvisation,and individuality of *** this paper,we first analysed the contents of drawing and the general creation process in ***,we have described a mechanism for using AI to enable people to regain the freedom of drawing ***,we have developed a framework that describes methods for analysing specific problems and quickly finding solutions by building connections between the influencing factors in drawing,the demands of humans,and possible implementa-tion *** framework also reveals a broad scope of possibilities for applying AI to support people in drawing.

关键词： Intention understanding drawing support drawing art human-artificial intelligence(AI)collaboration

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高校体育教师效能评价指标体系研究

首都体育学院学报 2018年第5期30卷 432-439页

作者：秦曼董海军上海立信会计金融学院体育与健康学院上海201209 上海理工大学体育教学部上海200093

教师效能评价是高校体育教师教学效果重要衡量标准,客观、全面评估高校体育教师效能状况,是高校体育教育质量提升的前提和依据。以教师评价理论和教师效能理论为依据,运用文献资料法、专家访谈法、德尔菲法、模糊综合评价法和数理统计法... 详细信息

教师效能评价是高校体育教师教学效果重要衡量标准,客观、全面评估高校体育教师效能状况,是高校体育教育质量提升的前提和依据。以教师评价理论和教师效能理论为依据,运用文献资料法、专家访谈法、德尔菲法、模糊综合评价法和数理统计法,通过2轮调查结果的统计分析与反馈调整,构建课堂教学和教师知识2个一级指标;教师授课、教学评价、课堂管理、教学环境、知识输出、知识学习和知识结构7个二级指标,以及35个三级指标。运用模糊综合评价法确定了指标体系的权重。结果显示:教师知识较之课堂教学对体育教师效能具有更重要影响。

关键词：高校体育教师教师效能课堂教学教师知识评价指标

Roles of Upper-Level Descending Inflow in Moat Development in Simulated Tropical Cyclones with Secondary Eyewall Formation

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Advances in Atmospheric Sciences 2024年第6期41卷 1100-1114页

作者： Nannan qin Liguang WU Nanjing Joint Institute for Atmospheric Sciences Nanjing 210041China Shanghai Typhoon Institute China Meteorological AdministrationShanghai 200030China Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Innovation Center of Ocean and Atmosphere System Zhuhai Fudan Innovation Research InstituteZhuhai 518057China

This study investigated the effects of upper-level descending inflow(ULDI)associated with inner-eyewall convection on the formation of the moat in tropical cyclones(TCs)with secondary eyewall formation(SEF).In our numerical experiments,a clear moat with SEF occurred in TCs with a significant ULDI,while no SEF occurred in TCs without a significant *** eyewall convection developed more vigorously in the control run.A ULDI occurred outside the inner-eyewall convection,where it was symmetrically *** ULDI was initially triggered by the diabatic warming released by the inner eyewall and later enhanced by the cooling below the anvil *** ULDI penetrated the outer edge of the inner eyewall with relatively dry air and prevented excessive solid-phase hydrometeors from being advected further *** produced extensive sublimation cooling of falling hydrometeors between the eyewall and the outer *** sublimation cooling resulted in negative buoyancy and further induced strong subsidence between the eyewall and the outer *** a result,a clear moat was *** of the moat in the ongoing SEF prevented the outer rainband from moving farther inward,helping the outer rainband to symmetrize into an outer *** the sensitivity experiment,no significant ULDI formed since the eyewall convection was weaker,and the eyewall anvil developed relatively lower,meaning the formation of a moat and thus an outer eyewall was less *** study suggests that a better-represented simulation of inner-eyewall convective structures and distribution of the solid-phase hydrometeors is important to the prediction of SEF.

关键词： tropical cyclone secondary eyewall formation upper-level descending inflow eyewall convection

The Coarse l^(p)-Novikov Conjecture and Banach Spaces with Property(H)

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Chinese Annals of Mathematics,Series B 2024年第2期45卷 193-220页

作者： Huan WANG qin WANG Research Center for Operator Algebras School of Mathematical SciencesEast China Normal UniversityShanghai 200241China Key Laboratory of MEA Ministry of Educationand Shanghai Key Laboratory of PMMPEast China Normal UniversityShanghai 200241China

In this paper,for 1

关键词： The coarse l^(p)-Novikov conjecture Banach spaces with Property(H) Coarse geometry K-Theory

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宁波国际贸易与海港城市发展互动关系研究

价格月刊 2012年第4期 20-25页

作者：秦曼曼高蒙蒙宁波大学商学院浙江宁波315211

以宁波市1985年～2010年的相关数据为样本,利用VAR模型分析框架研究宁波市国际贸易与城市发展的互动关系,结果表明:宁波市国际贸易与城市发展之间存在着长期均衡的互动关系,其中城市发展对国际贸易具有相对微弱的促进作用,而国际贸易对... 详细信息

以宁波市1985年～2010年的相关数据为样本,利用VAR模型分析框架研究宁波市国际贸易与城市发展的互动关系,结果表明:宁波市国际贸易与城市发展之间存在着长期均衡的互动关系,其中城市发展对国际贸易具有相对微弱的促进作用,而国际贸易对城市发展有着相对显著的促进作用,宁波市政府应更加致力于提高对外贸易水平推进该市现代化国际港口建设。

关键词：国际贸易海港城市发展向量自回归模型

In-depth insights into critical role of aromatic C（sp2）–H on Li+ storage

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Rare Metals 2024年第10期43卷 5449-5452页

作者： Ling qin Ye Zhou China-UK Low Carbon College Shanghai Jiao Tong University

The development of high-sloping-capacity carbons enables the creation of high-power lithium-ion batteries and capacitors （LIBs/LICs）.Among the various heteroatomdoped carbon materials,hydrogen-rich carbon appears to be a promising candidate due to its facile synthesis and high capacity for Li+***,conclusive data are still lacking to elucidate the fundamental function of the hydrogen-terminated groups （C-H configuration） in Li+*** and his co-workers have utilized an ion-catalyzed self-template method to synthesize the hydrogen-rich carbon nanoribbon （HCNR） with high specific and rate *** HCNR?s Li+storage mechanism is clarified by the use of in situ spectroscopy methods,which reveals that the sp2-hybridization of the

关键词： Aromatization

Towards data-efficient mechanical design of bicontinuous composites usinggenerative AI

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Theoretical & Applied Mechanics Letters 2024年第1期14卷 57-64页

作者： Milad Masrouri Zhao qin Department of Civil and Environmental Engineering Syracuse UniversitySyracuseNY 13244USA Laboratory for Multiscale Material Modelling Syracuse UniversitySyracuseNY 13244USA The BioInspired Institute Syracuse UniversitySyracuseNY 13244USA

The distribution of material phases is crucial to determine the composite’s mechanical *** the full structure-mechanics relationship of highly ordered material distributions can be studied with finite number of cases,this relationship is difficult to be revealed for complex irregular distributions,preventing design of such material structures to meet certain mechanical *** noticeable developments of artificial intelligence(AI)algorithms in material design enables to detect the hidden structure-mechanics correlations which is essential for designing composite of complex *** is intriguing how these tools can assist composite ***,we focus on the rapid generation of bicontinuous composite structures together with the stress distribution in *** find that generative AI,enabled through fine-tuned Low Rank Adaptation models,can be trained with a few inputs to generate both synthetic composite structures and the corresponding von Mises stress *** results show that this technique is convenient in generating massive composites designs with useful mechanical information that dictate stiffness,fracture and robustness of the material with one model,and such has to be done by several different experimental or simulation *** research offers valuable insights for the improvement of composite design with the goal of expanding the design space and automatic screening of composite designs for improved mechanical functions.

关键词： Generative artificial intelligence Stable diffusion Composite design Phase field model Molecular dynamics simulation