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基于残疾人体育运动需求体育馆通用化设计研究

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基于残疾人体育运动需求体育馆通用化设计研究

作者：李建远（lee Genweon）哈尔滨工业大学

学位级别：硕士

残疾人体育运动是第二次世界大战期间为伤残的军人获得康复而发展起来的。随着国际社会开始研究无障碍设计,保障弱者权利成为世界趋势,其研究对象也扩大到包括老人、孕妇、儿童在内,发展成为通用化设计。随着中国举办了2008年北京夏季... 详细信息

残疾人体育运动是第二次世界大战期间为伤残的军人获得康复而发展起来的。随着国际社会开始研究无障碍设计,保障弱者权利成为世界趋势,其研究对象也扩大到包括老人、孕妇、儿童在内,发展成为通用化设计。随着中国举办了2008年北京夏季残奥会和2022年北京冬季残奥会,国民对残疾人人权及其环境对关注在逐渐增加,中国的残疾人体育在国际上也显示出了卓越的实力。中国的残疾人体育的发展虽起步较晚,但取得了不少可观的成果。但与发达国家相比,近期的研究及民间意识还存在很大差异,如缺乏专门的体育设施通用规范、通用规范的最新化不足等。以这样的背景为基础,本研究对残疾人体育馆通用化设计战略进行研究。具体内容如下:首先根据多种残疾类型整理残疾人行为的特殊性,对国内外残疾人体育的发展历史和实际情况、通用化设计的相关概念进行总结。其次,考察残疾人体育馆空间的构成及使用者行为。对于体育比赛和管理及服务空间的布置和路线构成,分为比赛前、后不同时间可能发生的行为,并根据目的进行对空间的布置,提出关于空间构成的建议,另外,对与残疾人移动权关系最密切的体育馆内的交通体系和人道体系进行了分析和整理。由此,为体育馆设计时必须考虑的结构性基础打下了基础。最后比较研究了各个国家的通用设计规范,分类整理了比赛空间、观众席、卫生间、楼梯、更衣室、接待台、停车区、出入口、通道、电梯、警报系统等各个设施的实际设计规范。通过了解各国如何运用通用设计,及其设施的纤细项目,获得中国今后通用设计规范的方向性。通过以上叙述结果的研究和分析,提出了通用体育馆环境改善方面的残疾人体育竞赛空间设计方案。希望本研究能成为残疾人体育的发展和通用设计相关部门的决策的理论资料。

关键词：残疾人体育馆残疾人运动设施通用设计残疾人体育

基于肝脏对比剂增强CT影像的深度学习系统对肝纤维化分期的构建与验证

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国际医学放射学杂志 2019年第1期 111-112页

作者： K.J.Choi J.K.jang S.S.lee Y.S.Sung W.H.Shim H.S.Kim 王思妍 Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of Medicine

摘要目的利用肝脏CT影像构建和验证用于肝纤维化分期的深度学习系统(DLS)。材料与方法将7 461例经病理证实患有肝纤维化病人的门静脉期CT影像作为开发集,建

关键词：肝纤维化深度学习 CT

Near-Net Shape Continuous Casting of Aluminum Alloy Billet Using Electromagnetic Field

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Journal of Iron and Steel Research(International) 2012年第S1期19卷 40-45页

作者： Joonpyo PARK Myounggyun KIM Jongho-KIM Gyuchang lee 32 Hyoja Research Institute of Industrial Science and TechnologyPohangKorea

The present study investigates on the continuous casting of near-net shape aluminum billet using electromagnetic casting and stirring *** machine for continuous casting process involves round, square and rectangular billets;therefore it requires additional multistep forging process to fabricate final products.A new process for the designed free-shaped billets offers some advantages:the process of extrusion and forging is simplified and the cost of plastic working can be greatly *** order to reduce the peculiar problems such as surface crack and internal defect due to inhomogeneous heat transfer through solidified billets,electromagnetic casting and stirring technique were *** the numerical computer simulation,we have calculated the slit design of the free-shaped *** free-shaped aluminum billet was continuously cast at the various casting speed and coil current of about 1,*** velocity and melt pool depth were *** and microstructure of the free-shape aluminum billet using EMC and EMS techniques were compared with those of the billet using the conventional DC casting.

关键词： continuous casting free-shaped aluminum billet EMC EMS

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Restricted nutrient intake does not alter serum-mediated measures of implant response in cell culture

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Journal of Animal Science and Biotechnology 2014年第1期5卷 80-87页

作者： Christopher D Reinhardt Tiffany L lee Daniel U Thomson Laman K Mamedova Barry J Bradford Department of Animal Sciences and Industry 232 Weber Hall Kansas State University Department of Clinical Sciences A-111 Mosier Hall Kansas State University

Background： During nutritional stress, reduced intake may reduce the efficacy of anabolic implants. This study was conducted to evaluate basic cellular responses to a growth promotant implant at two intake levels. Methods： Sixteen crossbred steers （293 ± 19.3 kg） were used to evaluate the impact of anabolic implants in either an adequate or a restricted nutritional state. Steers were trained to individual Calan gates, and then randomly assigned to 1 of 4 treatments in a 2 × 2 factorial arrangement. Treatments consisted off presence or absence of an anabolic growth implant （Revalor-XS, 200 mg TBA and 40 mg estradiol; IMPLANT or CONTROL） and a moderate energy, pelleted, starting cattle diet fed at either 2.0 × or 1.0 × maintenance energy （NEM） requirements （HIGH or LOW）. Serum （d O, 14, and 28） was used for application to bovine muscle satellite cells. After treatment with the serum （20% of total media） from the trial cattle, the satellite cells were incubated for 72 h. Protein abundance of myosin heavy chain （MHC）, phosphorylated extracellular signal-related kinase （phospho-ERK）, and phosphorylated mammalian target of rapamycin （phospho-mTOR） were analyzed to determine the effects of implant, intake, and their interaction （applied via the serum）. Results： Intake had no effect on MHC （P = 0.85） but IMPLANT increased （P 〈 0.01） MHC abundance vs. CONTROL. Implant status, intake status, and the interaction had no effect on the abundance of phospho-ERK （P〉0.23）. Implanting increased phospho-mTOR （P 〈 0.01） but there was no effect （P 〉 0.51） of intake or intake x implant. Conclusions： The nearly complete lack of interaction between implant and nutritional status indicates that the signaling molecules measured herein respond to implants and nutritional status independently. Furthermore, results suggest that the muscle hypertrophic effects of anabolic implants may not be mediated by circulating IGF-1.

关键词： Beef cattle Implant Muscle Myosin heavy chain Nutrient restriction Satellite cells

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安徽沿江地区燕山期含铜岩体稀土、微量地球化学特征

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矿物岩石 2008年第1期28卷 72-78页

作者：谢建成杨晓勇 Insung lee 中国科学院壳-幔物质与环境重点实验室中国科学技术大学地球和空间科学学院安徽合肥230026 汉城国立大学地球和环境科学学院韩国汉城151-747

安徽沿江地区位于长江中下游岩浆成矿带中段，其中众多矿床的形成与燕山期岩浆密切相关。对安徽沿江地区（铜陵、安庆和庐纵）燕山期中酸性含铜岩体地球化学研究表明：含铜岩体稀土特征总体表现为右倾型，LREE富集，HREE亏损但表现为平... 详细信息

安徽沿江地区位于长江中下游岩浆成矿带中段，其中众多矿床的形成与燕山期岩浆密切相关。对安徽沿江地区（铜陵、安庆和庐纵）燕山期中酸性含铜岩体地球化学研究表明：含铜岩体稀土特征总体表现为右倾型，LREE富集，HREE亏损但表现为平缓的曲线，无明显的Eu异常，∑REE含量变化范围在85．84×10^-6～446．26×10^-6，（La／Yb）N值为7．87至63．8，具有高Th，Sr；低Cr，Ni；La／Nb（平均值为3．4），Nb／U（平均值为5．24）和Nb／Pb（平均值为1．47）等特征，结合同位素特征，为壳幔混熔的物源区。研究还表明，本区燕山期含铜岩体可能来自于底侵的慢源碱性玄武岩浆同化混染古老地壳物质同时结晶分异的产物。其中岩体中的铜能否参与成矿关键取决于是否发生热液蚀变交代作用。

关键词：含铜岩体稀土元素微量元素燕山期安徽沿江地区

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A vaccination model for COVID-19 in Gauteng,South Africa

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Infectious Disease Modelling 2022年第3期7卷 333-345页

作者： Christina J.Edholm Benjamin Levy lee Spence Folashade B.Agusto Faraimunashe Chirove C.Williams Chukwu David Goldsman Moatlhodi Kgosimore Innocent Maposa K.A.Jane White Suzanne Lenhart Department of Mathematics Scripps CollegeClaremontCAUSA Mathematics Department Fitchburg State UniversityFitchburgMAUSA Department of Mathematics University of TennesseeKnoxvilleTNUSA Department of Ecology and Evolutionary Biology University of KansasLawrenceKSUSA Department of Mathematics and Applied Mathematics University of JohannesburgSouth Africa H.Milton Stewart School of Industrial and Systems Engineering Georgia Institute of TechnologyAtlantaGAUSA Biometry and Mathematics Department Botswana University of Agriculture and Natural ResourcesGaboroneBotswana Division of Epidemiology and Biostatistics School of Public HealthFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa Department of Mathematical Sciences University of BathBathUK

The COVID-19 pandemic provides an opportunity to explore the impact of government mandates on movement restrictions and non-pharmaceutical interventions on a novel infection,and we investigate these strategies in early-stage outbreak *** rate of disease spread in South Africa varied over time as individuals changed behavior in response to the ongoing pandemic and to changing government *** a system of ordinary differential equations,we model the outbreak in the province of Gauteng,assuming that several parameters vary over *** data from the time period before vaccination gives the approximate dates of parameter changes,and those dates are linked to government *** parameters are then estimated from available case data and used to assess the impact of each *** forward in time,possible scenarios give projections involving the implementation of two different vaccines at varying *** results quantify the impact of different government policies and demonstrate how vaccinations can alter infection spread.

关键词： COVID-19 Gauteng South Africa ODE epidemiology Model Vaccination Parameter estimation

On Friendly Index Sets of Cyclic Silicates

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Journal of Mathematical Research with Applications 2015年第6期35卷 591-604页

作者： Zhenbin GAO Sinmin lee Guangyi SUN Geechoon LAU College of Science Harbin Engineering University Deptartment of Computer Science San Jose State University Faculty of Computer and Mathematical Sciences Universiti Teknologi MARA (Segamat Campus)

Let G be a graph with vertex set V(G) and edge set E(G). A labeling f : V(G) →Z2 induces an edge labeling f*: E(G) → Z2 defined by f*(xy) = f(x) + f(y), for each edge xy ∈ E(G). For i ∈ Z2, let vf(i) = |{v ∈ V(G) : f(v) = i}| and ef(i) = |{e ∈ E(G) : f*(e) =i}|. A labeling f of a graph G is said to be friendly if |vf(0)- vf(1)| ≤ 1. The friendly index set of the graph G, denoted FI(G), is defined as {|ef(0)- ef(1)|: the vertex labeling f is friendly}. This is a generalization of graph cordiality. We investigate the friendly index sets of cyclic silicates CS(n, m).

关键词： vertex labeling friendly labeling cordiality friendly index set cycle CS(n,m) arithmetic progression

Does intraoperative frozen section really predict significant positive surgical margins after robot-assisted laparoscopic prostatectomy?A retrospective study

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Asian Journal of Andrology 2021年第1期23卷 74-79页

作者： Se Young Choi Byung Hoon Chi Tae-Hyoung Kim Bumjin Lim Wonchul lee Dalsan You Choung-Soo Kim Department of Urology Chung-Ang University HospitalChung-Ang University College of MedicineDongjak-guSeoul 06973Korea Department of Urology Asan Medical CenterUniversity of Ulsan College of MedicineSongpa-guSeoul 05505Korea

We investigated the relationship between positive surgical margin(PSM)-related factors and biochemical recurrence(BCR)and the ability of intraoperative frozen sections to predict significant PSM in patients with prostate *** study included 271 patients who underwent robot-assisted laparoscopic prostatectomy with bilateral nerve sparing and maximal urethral *** frozen sections of the periurethra,dorsal vein,and bladder neck were *** ability of PSM-related factors to predict BCR and significant PSM was assessed by logistic *** 271 patients,108(39.9%)had PSM and 163(60.1%)had negative *** Gleason score^8(18.9%vs 7.5%,P=0.015)and T stage≥T3a(51.9%vs 24.6%,P<0.001)were significantly more frequent in the PSM *** analysis showed that Gleason pattern≥4(vs<4;hazard ratio:4.386;P=0.0004)was the only significant predictor of BCR in the PSM *** frozen sections had a sensitivity of 83.3%and a specificity of 84.2%in detecting PSM with Gleason pattern≥*** analysis showed that membranous urethra length(odds ratio[OR]:0.79,P=0.0376)and extracapsular extension of the apex(OR:4.58,P=0.0226)on magnetic resonance imaging(MRI)and positive periurethral tissue(OR:17.85,P<0.0001)were associated with PSM of the *** with Gleason pattern≥4 is significantly predictive of *** frozen sections of periurethral tissue can independently predict PSM,whereas sections of the bladder neck and dorsal vein could *** examination of these samples may help predict significant PSM in patients undergoing robot-assisted laparoscopic prostatectomy with preservation of functional outcomes.

关键词： biochemical recurrence frozen section positive surgical margin robotic-assisted prostatectomy

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基于深度学习的遮挡人脸检测研究

基于深度学习的遮挡人脸检测研究

作者：李文豪（lee Wenhao）中南民族大学

学位级别：硕士

随着计算机硬件水平和深度学习的快速发展,计算机视觉取得了飞速发展。人脸检测是计算机视觉领域的一个重要分支,基于深度学习的人脸检测系统在实际生活中得到了广泛的应用,在一些特殊环境下的人脸检测系统的精度甚至超过了人眼。2019... 详细信息

随着计算机硬件水平和深度学习的快速发展,计算机视觉取得了飞速发展。人脸检测是计算机视觉领域的一个重要分支,基于深度学习的人脸检测系统在实际生活中得到了广泛的应用,在一些特殊环境下的人脸检测系统的精度甚至超过了人眼。2019年爆发了新型冠状病毒肺炎COVID-19,人们纷纷佩戴上了口罩以在社交距离下防止病毒的传播。在正确佩戴口罩的情况下,从鼻子到下巴的人脸特征都会被口罩遮挡,这会使得人脸检测系统的精度下降。在日常生活中,人们的一些装饰品同样会遮挡住人脸的部分特征,比如佩戴墨镜会遮挡住人眼特征;佩戴帽子会由于光照的遮挡对人脸特征产生一定的影响等。所以如何设计出适合于遮挡场景的人脸检测系统是一个亟需解决的问题。当人脸特征由于光照、遮挡等因素发生变化的时候,当前基于深度学习的通用目标检测模型在人脸检测领域的检测精度和速度上表现的不是很理想。因此,基于通用目标检测模型,针对由于遮挡造成的精度下降的问题,展开如下研究:(1)由于遮挡人脸检测同时需要关注目标的类别信息和目标的空间位置信息,并且人脸在被口罩遮挡的时候会有大量的人脸特征信息被破环,因此在YOLOv4模型的基础上提出了基于组合注意力机制的人脸检测模型,引入同时兼顾通道注意力和空间注意力的DCA(Dilated Convolutional Attention)注意力机制模块,同时采用多种数据增强方式扩充数据来防止模型产生过拟合现象,提升模型对遮挡人脸的处理能力。实验结果显示:相较于原模型,所提出的YOLO-DCA模型在m AP上提升了4.66%。(2)为了解决人脸检测中由于目标遮挡、背景复杂导致性能下降以及卷积神经网络模型过大导致难以在低性能设备部署问题,在YOLOv4-Tiny的基础上引入自反卷积SD(Self-De Convolution)模块,提出YOLO-SD-Tiny网络模型。在特征金字塔网络引入拥有更大感受野和更轻量级的SD模块,在部分网络层中采用Mish激活函数,损失函数采用CIOU边界框回归损失和GHM(Gradient Harmonizing Mechanism)分类损失。实验结果表明:与原YOLOv4-Tiny相比,所提出的YOLO-SD-Tiny在遮挡场景下的人脸检测在参数量上有些许减少,在精度上提升了4.89%,在检测速度上提升了9.64%。

关键词：人脸检测卷积神经网络注意力机制特征金字塔