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Youngs方法在自膨胀浆液移动界面追踪中的应用 被引量:2
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作者 李晓龙 张甜甜 +2 位作者 王复明 钟燕辉 张蓓 《岩土力学》 EI CAS CSCD 北大核心 2017年第12期3491-3497,3504,共8页
数值模拟是研究浆液在岩体裂隙中扩散规律的重要途径之一。对浆液运动界面进行准确地追踪,是建立浆液流动扩散仿真分析方法需要解决的一个关键问题。以自膨胀浆液在平板裂隙中流动扩散过程为对象,考虑浆液扩散过程中两相流特征,引入VOF... 数值模拟是研究浆液在岩体裂隙中扩散规律的重要途径之一。对浆液运动界面进行准确地追踪,是建立浆液流动扩散仿真分析方法需要解决的一个关键问题。以自膨胀浆液在平板裂隙中流动扩散过程为对象,考虑浆液扩散过程中两相流特征,引入VOF函数描述两相介质分布,采用基于几何学原理的Youngs方法求解VOF方程,以实现对浆液移动界面的追踪。利用已知密度随时间变化规律的自膨胀浆液在平板裂隙中自由扩散算例对该方法进行测试,结果表明,不同时刻求解得到的浆液移动界面位置和轮廓与解析解吻合较好,显示了较高的计算精度和良好的界面追踪效果,为开发自膨胀浆液流动扩散仿真程序奠定了基础。 展开更多
关键词 自膨胀浆液 VOF youngs方法 移动界面追踪 数值模拟
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基于Youngs界面重构技术的自适应网格细分方法 被引量:3
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作者 刘春 马天宝 宁建国 《计算力学学报》 EI CAS CSCD 北大核心 2010年第6期1111-1116,共6页
Euler型多物质流体动力学数值方法中,常采用Youngs界面重构技术处理混合网格。Youngs方法在输运步中需要同时考虑两种物质,程序编写复杂,效率低。本文在Youngs方法的基础上,对混合网格进行多层细分,用细分后的纯物质子网格代替原混合网... Euler型多物质流体动力学数值方法中,常采用Youngs界面重构技术处理混合网格。Youngs方法在输运步中需要同时考虑两种物质,程序编写复杂,效率低。本文在Youngs方法的基础上,对混合网格进行多层细分,用细分后的纯物质子网格代替原混合网格。分析了网格细分的具体方案;对细分后子网格,同时考虑往周边八个网格的输运,给出了所有可能分配量的表达式。最后编程实验结果表明,在不增加计算量的基础上,网格细分的方法有效地提高了计算精度。 展开更多
关键词 youngs算法 细分网格 混合网格 数值模拟
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轴对称柱坐标系中的Youngs算法
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作者 胡影影 朱克勤 席葆树 《同济大学学报(自然科学版)》 EI CAS CSCD 北大核心 2004年第7期916-919,共4页
为提高包含有交界面的轴对称流动问题的求解精度 ,将直角系中的Youngs算法公式推广到轴对称柱系中应用 .根据流体体积分数的定义 ,在直角系Youngs算法的基础上 ,通过引入修正系数 ,可以方便地实现Youngs算法在轴对称柱坐标系中的应用 .... 为提高包含有交界面的轴对称流动问题的求解精度 ,将直角系中的Youngs算法公式推广到轴对称柱系中应用 .根据流体体积分数的定义 ,在直角系Youngs算法的基础上 ,通过引入修正系数 ,可以方便地实现Youngs算法在轴对称柱坐标系中的应用 .最后在轴对称情况下 ,数值模拟了空泡在理想流场中的溃灭过程 ,通过比较空泡半径理论解和由Youngs算法得到的数值解 ,检验Youngs算法在轴对称情况下的应用 . 展开更多
关键词 轴对称柱坐标系 youngs算法 流体体积分数 交界面
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一种基于几何重构的Youngs-VOF耦合水平集追踪方法 被引量:6
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作者 张嫚嫚 孙姣 陈文义 《力学学报》 EI CSCD 北大核心 2019年第3期775-786,共12页
针对界面追踪方法中拉格朗日方法和欧拉–拉格朗日方法计算效率低、不适用大变形、不能应用于三维数值计算模型等问题,研究了一种效率高、界面清晰、适用于三维模型的计算气液两相界面迁移特性的欧拉运动界面追踪方法,该方法将'米&#... 针对界面追踪方法中拉格朗日方法和欧拉–拉格朗日方法计算效率低、不适用大变形、不能应用于三维数值计算模型等问题,研究了一种效率高、界面清晰、适用于三维模型的计算气液两相界面迁移特性的欧拉运动界面追踪方法,该方法将'米'状相邻单元Youngs方法用于运动界面重构,将Youngs-VOF和水平集通过几何方法耦合,提高运动界面精度,克服了VOF和水平集方法存在的缺陷,避免了利用高阶导数本身的稳定性去求解水平集对流方程和距离函数方程.'米'状相邻单元Youngs方法避免了数值耗散、数值色散性以及非线性效应引起的捕捉界面模糊的情况. Youngs-VOF耦合水平集方法既保证了计算界面时的稳定性,与拉格朗日方法相比又提高了计算效率.利用Youngs-VOF耦合水平集方法与VOF方法对单个气泡在水中上升过程数值计算与实验对比并对经典剪切流场中圆形运动界面模型的数值计算,验证了Youngs-VOF耦合水平集方法的有效性并比VOF方法捕捉界面更清晰、锐利;通过对溃坝–自由表面流动过程数值计算并与实验进行对比,验证了Youngs-VOF耦合水平集方法的稳定性以及对三维数值模型的适用性. 展开更多
关键词 运动界面重构 改进的youngs方法 水平集方法 VOF方法 几何重构
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基于Youngs界面技术的混凝土中爆炸三维动力计算 被引量:1
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作者 吴吉林 马天宝 +1 位作者 郝莉 宁建国 《北京理工大学学报》 EI CAS CSCD 北大核心 2009年第7期570-573,共4页
为了研究混凝土中爆炸的物理机制,基于三维Youngs界面重构技术,编制了MMIC-3 D程序,模拟了半无限混凝土中爆炸空腔的形成、发展、鼓包运动规律等过程,得到了半无限混凝土中爆炸的三维数值模拟结果.研究结果表明,计算结果与实验现象和物... 为了研究混凝土中爆炸的物理机制,基于三维Youngs界面重构技术,编制了MMIC-3 D程序,模拟了半无限混凝土中爆炸空腔的形成、发展、鼓包运动规律等过程,得到了半无限混凝土中爆炸的三维数值模拟结果.研究结果表明,计算结果与实验现象和物理规律一致,本文中的计算方法和程序代码是正确的,可以为工程设计提供依据. 展开更多
关键词 数值模拟 欧拉方法 youngs界面技术 爆炸 混凝土
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计算体积分数函数的Youngs不分裂算法 被引量:6
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作者 胡影影 朱克勤 席葆树 《清华大学学报(自然科学版)》 EI CAS CSCD 北大核心 2002年第2期232-234,238,共4页
为提高有交界面流动问题的计算精度 ,通过引入不分裂的界面推进 ,对现有的 Youngs算法 (流体体积法的一种 )进行改进 ,推导其算法公式。在此基础上 ,分别用 Donor-Acceptor算法、分裂和不分裂的 Youngs算法计算典型算例。几种计算结果... 为提高有交界面流动问题的计算精度 ,通过引入不分裂的界面推进 ,对现有的 Youngs算法 (流体体积法的一种 )进行改进 ,推导其算法公式。在此基础上 ,分别用 Donor-Acceptor算法、分裂和不分裂的 Youngs算法计算典型算例。几种计算结果比较后表明 :不分裂 Youngs算法在空间和时间上都具有较高精度 。 展开更多
关键词 不分裂youngs算法 流体体积分数法 交界面 工程流体力学 界面重构 界面推进
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基于Youngs-VOF方法的垂向二维悬沙数值模拟 被引量:1
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作者 赵东淼 唐军 吴修广 《水力发电学报》 EI CSCD 北大核心 2013年第6期99-103,134,共6页
垂向二维水沙模型能够较好的反映水力特性和泥沙浓度沿侧向变化不大的区域的水沙运动。本文联合非线性k-ε紊流模型,由Youngs-VOF法追踪自由面,采用精度较高的ELVIRA自由面法向确立方法取代Youngs的方法,建立了一个对自由面非线性有着... 垂向二维水沙模型能够较好的反映水力特性和泥沙浓度沿侧向变化不大的区域的水沙运动。本文联合非线性k-ε紊流模型,由Youngs-VOF法追踪自由面,采用精度较高的ELVIRA自由面法向确立方法取代Youngs的方法,建立了一个对自由面非线性有着较强适应性的垂向二维泥沙紊流输运模型,并对非线性紊流方程、泥沙输运方程采用了垂向隐式、水平显式的power-law格式进行数值离散。将模型应用于单纯冲刷及淤积的水槽试验,通过实测资料和数值模拟结果的分析对比验证了模型的有效性。 展开更多
关键词 河流泥沙工程学 垂向二维泥沙 youngs—VOF k-ε模型 自由面 ELVIRA
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Threads of Life
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作者 WANG RUYING 《China Today》 2025年第1期70-72,共3页
A young artist seeks to make Suzhou silk embroidery,a millennia-old art,more contemporary and alive.THE city of Suzhou in east China’s Jiangsu Province is the birthplace of the famous Su embroidery,one of the four ma... A young artist seeks to make Suzhou silk embroidery,a millennia-old art,more contemporary and alive.THE city of Suzhou in east China’s Jiangsu Province is the birthplace of the famous Su embroidery,one of the four main styles of Chinese silk embroidery,used to make a wealth of things from screens and garments to dazzling pictures.In Zhenhu,a small,picturesque town in Suzhou,the tradition of Suzhou embroidery goes back 2,000 years and of its nearly 20,000 residents,more than 40 percent are engaged in the embroidery business.Zhou Xiaojing is one of them.With her nimble needle and threads,the young embroiderer has created many captivating pieces of art. 展开更多
关键词 SUZHOU NEEDLE YOUNG
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International Young Entrepreneurs Call for More Green Cooperation
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作者 CHINA TODAY 《China Today》 2025年第1期54-55,共2页
The global issue of climate change presents young entrepreneurs with opportunities to explore new business models.FACED with the severe challenges presented by global climate change,pursuing a green lifestyle is a way... The global issue of climate change presents young entrepreneurs with opportunities to explore new business models.FACED with the severe challenges presented by global climate change,pursuing a green lifestyle is a way to achieve sustainable development.Many countries are exploring ways to reach a balance between economic development and environmental protection. 展开更多
关键词 development. REACH YOUNG
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Chinese Youngsters Realize A Football Dream——Visit to Germany by Chinese Youth Football Team
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作者 Lu Jing 《Voice of Friendship》 2014年第3期12-13,共2页
It was a bright and beautiful spring day on March 29,2014 in Berlin,and the grass of the Olympic football stadium resembled a green carpet in the brilliant sunshine.A group of junior football players from Hong’an Cou... It was a bright and beautiful spring day on March 29,2014 in Berlin,and the grass of the Olympic football stadium resembled a green carpet in the brilliant sunshine.A group of junior football players from Hong’an County of Hubei Province and Zhidan County of Shaanxi Province were having a training session together with young players of the VfL Wolfsburg(Verein fur Leibesubungen Wolfsburg e.v.)under the guidance of German coaches. 展开更多
关键词 FOOTBALL SUNSHINE BRILLIANT German guidance young
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“永葆童心”——鲍勃·迪伦歌曲绘本儿童伦理教育价值探析
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作者 吴群涛 熊哲 《湖南第一师范学院学报》 2024年第1期87-93,共7页
媒介融合背景下,适当选用歌曲和绘本有益于儿童初步塑造道德品质、探索伦理身份。诺贝尔文学奖得主鲍勃·迪伦的歌曲Forever Young表达了关于儿童养成友善、平等和诚挚道德品质的期望。该歌曲配套绘本将音乐、绘画、歌词有机融合,... 媒介融合背景下,适当选用歌曲和绘本有益于儿童初步塑造道德品质、探索伦理身份。诺贝尔文学奖得主鲍勃·迪伦的歌曲Forever Young表达了关于儿童养成友善、平等和诚挚道德品质的期望。该歌曲配套绘本将音乐、绘画、歌词有机融合,不仅能使儿童在接受绘画艺术熏陶时同步感受歌曲传递的伦理价值观念,还能凸显儿童伦理身份重要性。绘本主要展现儿童伦理身份的构建过程,引导儿童思考何为社会伦理身份,并帮助儿童调整伦理身份定位。“因时、因地制宜”运用该歌曲绘本,有助于儿童对各类伦理品质的理解由语音层面提升至语义层面,再逐渐内化到观念层面,从而引导他们永葆纯洁善良的“童心”,为其成年后步入社会奠定良好基础。 展开更多
关键词 鲍勃·迪伦 儿童歌谣 Forever Young 歌曲绘本 儿童伦理教育
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Global,regional and national burdens of bipolar disorders in adolescents and young adults:a trend analysis from 1990 to 2019 被引量:3
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作者 Yunxi Zhong Yifan Chen +4 位作者 Xiaoying Su Meiqi Wang Qixiu Li Ziming Shao Long Sun 《General Psychiatry》 CSCD 2024年第1期122-132,共11页
Background Bipolar disorder is identified as a cause of severe damage to the physical,psychological and social functioning of adolescents and young adults.Aims The aim of this study is to ascertain the trends in the b... Background Bipolar disorder is identified as a cause of severe damage to the physical,psychological and social functioning of adolescents and young adults.Aims The aim of this study is to ascertain the trends in the burden of bipolar disorder among individuals aged 10-24 years at global,regional and national levels from 1990 to 2019.Methods The data analysed in this study were from the Global Burden of Diseases 2019.The numbers,rates per 100000 population,average annual percentage changes(AAPCs)of incidence,prevalence and years lived with disability(YLDs)of bipolar disorder are reported at the global,regional and national levels among individuals aged 10-24 years.Global trends by age,sex and Social Development Index(SDI)were further analysed.Results Globally,the incidence of bipolar disorder among adolescents and young adults increased from 79.21 per 100000 population(95%uncertainty interval(Ul):58.13 to 105.15)in 1990 to 84.97 per 100000 population(95%Ul:61.73 to 113.46)in 2019,AAPC 0.24(95%confidence interval(Cl):0.22 to 0.26).In the past three decades,there has been an increase in incidence,prevalence and YLDs in both males and females.The largest increase in incidence between 1990 and 2019 was observed in those aged 20-24 years old from 51.76 per 100000 population(95%Ul:26.81 to 87.20)in 1990 to 58.37 per 100000 population(95%UI:30.39 to 98.55)in 2019;AAPC 0.42(95%Cl:0.38 to 0.47).By the SDI quintile,the largest increase in incidence was observed in the middle SDl;however,the high SDI countries had the highest incidence.Regionally,the largest increase in incidence was observed in southern Latin America.At the national level,the most pronounced increase in the incidence was in Greenland.Conclusions The global increase in incidence among adolescents and young adults between 1990 and 2019 indicates that strategies to improve their mental health still need to be emphasised. 展开更多
关键词 ADOLESCENT BIPOLAR YOUNG
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Pour un accompagnement des familles endeuillées avec un enfant en basâge Supporting Bereaved Families with Young Children 被引量:1
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作者 Marthe Ducos Voskan Kirakosyan Nathalie Duriez 《Psycho-Oncologie》 SCIE 2024年第3期201-211,共11页
Objective:The violent death of a young parent from cancer has a profound effect on both spouse and children.The family must adapt to the absence of the bereaved and reorganize to raise the children as best they can.Ve... Objective:The violent death of a young parent from cancer has a profound effect on both spouse and children.The family must adapt to the absence of the bereaved and reorganize to raise the children as best they can.Very young children are particularly vulnerable,as they are generally unable to express their suffering.To give them a voice,we have designed an innovative system,The Little Match Girl,as part of a health democracy approach.Methods:We assessed the effects of their participation in the group for a population of eight children and their parents.The six parents assessed their child(ren)’s emotion regulation before and after therapy using the ERC-vf scale.The FACES IV enabled us to assess the cohesion and adaptability of each family.Results:All eight children showed improved emotion regulation.The program promotes family resilience.However,difficulties persist in rigid or disengaged families.Conclusion:We hope that other cancer centers will follow our model to give a place to very young children dealing with the death of a parent from cancer,and to encourage family empowerment. 展开更多
关键词 Cancer bereavement in young children emotion regulation health democracy discussion group
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中国式现代化语境下主流节目IP创设的询唤机制解析——以“家国young貌”系列节目为例
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作者 靳迪 张超 《传播与版权》 2024年第8期33-36,共4页
在Web3.0时代,数字信息技术为主流节目IP的交互共享提供了技术支持,但节目内容的泛娱乐化倾向导致部分主流节目叙事传播不畅。文章以中央广播电视总台2023年系列节目“家国young貌”为例,剖析当代主流节目的破圈实践,并结合询唤理论,从... 在Web3.0时代,数字信息技术为主流节目IP的交互共享提供了技术支持,但节目内容的泛娱乐化倾向导致部分主流节目叙事传播不畅。文章以中央广播电视总台2023年系列节目“家国young貌”为例,剖析当代主流节目的破圈实践,并结合询唤理论,从话语下沉、仪式沉浸、知行规训三方面提出主流节目IP创设对培植文化自信、建构精神谱系的作用机制。 展开更多
关键词 中国式现代化 主流节目IP 询唤理论 “家国young貌”
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Correlation between psychological traits and the use of smart medical services in young and middle-aged adults: An observational study 被引量:1
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作者 Hu Zhang Yan Liu Rui Gu 《World Journal of Psychiatry》 SCIE 2024年第8期1224-1232,共9页
BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms... BACKGROUND Psychological problems affect economic development.However,there is a huge gap between mental health service resources and mental health service needs.Existing mental health service technology and platforms cannot meet all the diverse mental health needs of people.Smart medicine is a new medical system based online that can effectively improve the quality and efficiency of medical services and make mental health services accessible.AIM To explore the level of intelligent medical use among young and middle-aged people and its correlation with psychological factors.METHODS Convenience sampling was used to select 200 young and middle-aged patients with medical experience at the Third People's Hospital of Chengdu between January 2022 and January 2023 as the research subjects.The general condition Questionnaire,Eysenck Personality Questionnaire,Symptom Checklist-90,General Health Questionnaire,and Smart Medical Service Use Intention Questionnaire were used to collect data.Pearson’s correlation was used to analyze the correlation between the participants’willingness to use smart medical services and their personality characteristics,psychological symptoms,and mental health.RESULTS The results revealed that the mental health of young and middle-aged people was poor,and some had psycho-logical problems such as anxiety,depression,and physical discomfort.Familiarity,acceptance,and usage of smart healthcare in this population are at a medium level,and these levels correlate with psychological characteristics.Acceptance was positively correlated with E,and negatively correlated with P,anxiety,fear,anxiety/insomnia,and social dysfunction.The degree of use was negatively correlated with P,obsessive-compulsive symptoms,depression,anxiety,hostility,paranoia,and somatic symptoms.CONCLUSION The familiarity,acceptance,and usage of smart medical services among the middle-aged and young groups are related to various psychological characteristics. 展开更多
关键词 Young and middle-aged people Smart healthcare Willingness to serve Psychological characteristics Questionnaire survey RELEVANCE
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三段式嵌套顺序统计量的分布及应用
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作者 樊湉航 孙平 《许昌学院学报》 CAS 2024年第5期19-24,共6页
顺序统计量在非参数统计分析中有着广泛的应用,嵌套顺序统计量的分布则依赖于具体的嵌套结构以及随机变量的分布特性.在研究三段式嵌套顺序统计量的分布时,可以将问题转化为嵌套积分,通过对相应的嵌套单形进行多重积分得到三段式嵌套顺... 顺序统计量在非参数统计分析中有着广泛的应用,嵌套顺序统计量的分布则依赖于具体的嵌套结构以及随机变量的分布特性.在研究三段式嵌套顺序统计量的分布时,可以将问题转化为嵌套积分,通过对相应的嵌套单形进行多重积分得到三段式嵌套顺序统计量的分布.这种分析方法的应用十分广泛,由于Standard Young Tableaux (SYT)的每一行对应一组独立的顺序统计量,因此文章将其应用于SYT的计数问题.此外,文章还将三段式嵌套顺序统计量的分布应用于选票问题. 展开更多
关键词 顺序统计量 多重积分 Standard Young Tableaux
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Interconnected microstructure and flexural behavior of Ti_(2)C-Ti composites with superior Young’s modulus
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作者 Fengbo Sun Rui Zhang +3 位作者 Fanchao Meng Shuai Wang Lujun Huang Lin Geng 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第9期2088-2101,共14页
To enhance the Young’s modulus(E)and strength of titanium alloys,we designed titanium matrix composites with intercon-nected microstructure based on the Hashin-Shtrikman theory.According to the results,the in-situ re... To enhance the Young’s modulus(E)and strength of titanium alloys,we designed titanium matrix composites with intercon-nected microstructure based on the Hashin-Shtrikman theory.According to the results,the in-situ reaction yielded an interconnected microstructure composed of Ti_(2)C particles when the Ti_(2)C content reached 50vol%.With widths of 10 and 230 nm,the intraparticle Ti lamellae in the prepared composite exhibited a bimodal size distribution due to precipitation and the unreacted Ti phase within the grown Ti_(2)C particles.The composites with interconnected microstructure attained superior properties,including E of 174.3 GPa and ultimate flexural strength of 1014 GPa.Compared with that of pure Ti,the E of the composite was increased by 55% due to the high Ti_(2)C content and interconnected microstructure.The outstanding strength resulted from the strong interfacial bonding,load-bearing capacity of interconnected Ti_(2)C particles,and bimodal intraparticle Ti lamellae,which minimized the average crack driving force.Interrupted flexural tests revealed preferential crack initiation along the{001}cleavage plane and grain boundary of Ti_(2)C in the region with the highest tensile stress.In addition,the propagation can be efficiently inhibited by interparticle Ti grains,which prevented the brittle fracture of the composites. 展开更多
关键词 titanium matrix composites titanium carbide INTERFACE Young’s modulus flexural behavior
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Comment on: Observation of peripheral refraction in myopic anisometropia in young adults
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作者 Suraj Kumar Chaurasiya Mahendra Singh +6 位作者 Pradeep Agarwal Yu-Qin Du Yue-Hua Zhou Ming-Wei Ding Ming-Xu Zhang Yu-Juan Guo Shan-Shan Ge 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第7期1385-1386,共2页
Dear Editor,We read with great interest the recently published article titled“Observation of peripheral refraction in myopic anisometropia in young adults”by Du et al[1].The study conducted at the InEye Hospital of ... Dear Editor,We read with great interest the recently published article titled“Observation of peripheral refraction in myopic anisometropia in young adults”by Du et al[1].The study conducted at the InEye Hospital of Chengdu University of TCM provides valuable insights into the relationship between anisometropia and peripheral refraction in myopic young adults.We commend the authors for their thorough investigation and adherence to ethical guidelines.While the study contributes significantly to our understanding of myopic anisometropia,we would like to draw attention to some limitations that merit consideration for a comprehensive interpretation of the findings. 展开更多
关键词 OBSERVATION YOUNG INSIGHT
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Comment on:Recurrence after spontaneous separation of epiretinal membrane in a young woman:a case report
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作者 Yusuke Kameda Yutaka Kaneko +1 位作者 Karin Ishinabe Nichika Fukuoka 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2024年第4期783-784,共2页
Dear Editor,Herein,we provide a commentary on the recently published article by Zeng QZ and Yu WZ[1].This case report provides interesting novel insights into the recurrence of epiretinal membrane(ERM)following self-s... Dear Editor,Herein,we provide a commentary on the recently published article by Zeng QZ and Yu WZ[1].This case report provides interesting novel insights into the recurrence of epiretinal membrane(ERM)following self-separation in a young patient.In addition to the study,we have been investigating spontaneous ERM release for many years and have recently published a related paper[2]. 展开更多
关键词 SEPARATION YOUNG RELEASE
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Increasing prevalence of eating disorders in female adolescents compared with children and young adults:an analysis of real-time administrative data
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作者 Binx Yezhe Lin Dominic Moog +6 位作者 Hui Xie Ching-Fang Sun Wisteria Yushan Deng Erin McDaid Katherine V Liebesny Anita S Kablinger Kevin Young Xu 《General Psychiatry》 CSCD 2024年第4期502-505,共4页
TToo tthhee eeddiittoorr::Eating disorder(ED),as defined by the Diagnostic and Statistical Manual of Mental Disorders(DSM-5),is a persistent disturbance of eating or eating-related behaviour that results in the altere... TToo tthhee eeddiittoorr::Eating disorder(ED),as defined by the Diagnostic and Statistical Manual of Mental Disorders(DSM-5),is a persistent disturbance of eating or eating-related behaviour that results in the altered consumption or absorption of food and that significantly impairs physical health or psychosocial functioning.^(1)The DSM-5 outlines criteria for EDs,including anorexia nervosa,bulimia nervosa,binge-eating disorder,pica,rumination disorder and avoidant/restrictive food intake disorder.EDs are relatively common in young people,affecting 5.5%-17.9%of young women and 0.6%-2.4%of young men by the time they reach early adulthood. 展开更多
关键词 PREVALENCE INTAKE YOUNG
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