Results 11 to 20 of about 1,763,463 (151)
Journal of Diabetes, Volume 14, Issue 9, Page 571-585, September 2022., 2022 Highlights The association between skin autofluorescence advanced glycation end products (SAF‐AGEage) and low bone density/osteoporosis or major osteoporotic fractures was noteworthy in patients with type 2 diabetes mellitus (T2DM). SAF‐AGEs were positively associated with the level of serum N‐terminal propeptide of type I procollagen (s‐PINP) and ...
Hongyan Liu +5 more
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Using Wikipedia to measure public interest in biodiversity and conservation
Conservation Biology, Volume 35, Issue 2, Page 412-423, April 2021., 2021 Abstract The recent growth of online big data offers opportunities for rapid and inexpensive measurement of public interest. Conservation culturomics is an emerging research area that uses online data to study human–nature relationships for conservation. Methods for conservation culturomics, though promising, are still being developed and refined.
John C. Mittermeier +4 more
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
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, 2021 在飞行器操纵面的铰链处往往存在间隙非线性,会导致在低于线性颤振速度下就出现了流固耦合振动,如极限环振荡。对于实际工程应用,结构模型往往是三维的,流动也是复杂的,会存在跨音速流动、粘性效应等气动非线性因素。建立基于计算流体力学/计算结构力学(CFD/CSD)耦合的间隙非线性气动弹性分析方法(JSV, 494 (2021), 115896)。流场网格变形采用径向基函数方法,减缩结构运动方程的建立采用虚拟质量法,间隙非线性切换点的捕捉采用二分法,通过二分法确定的自适应时间步长要返回到CFD程序 ...
郑冠男, 黄程德, 杨国伟
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Integrative Conservation, Volume 4, Issue 3, Page 322-333, September 2025.A content analysis of 154 nature education lesson plans from China showed that educators designed diverse programs tailored to age‐specific developmental and social needs. Most focused on personal growth, such as cognitive development, mental well‐being, and family bonding, but few explicitly addressed environmental conservation goals.
Yue Li, Danning Lu, Xin Yu, Chuan Liao
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Equine Veterinary Journal, Volume 57, Issue 1, Page 87-100, January 2025.Abstract Background Radiological findings in the proximal sesamoid bones (sesamoids) are a persistent source of controversy at Thoroughbred sales, due to inconsistent classification and conflicting assignment of potential clinical importance. Objectives To define the prevalence of sesamoid findings on sales repository radiographs in yearling and 2‐year‐
Frances J. Peat +5 more
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Integrative Conservation, Volume 3, Issue 3, Page 271-280, September 2024.The Greater Himalayas in India, of which Kishtwar High Altitude National Park (KHANP) is a part, harbours potential snow leopard habitat. We sampled three catchments within the Dachhan region of KHANP using 44 cameras and identified four unique snow leopard individuals across 14 detections in nine camera locations.
Munib Khanyari +8 more
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, 1986 本文将国际上流行的两点张量法及 Lagrange 描写方法统一起来。运用虚功原理及张量变换得到了 Lagrangian 坐标系及 Euler 坐标系中的应力率平衡方程以及与之等价的变分方程;同时推导出塑性大变形三维有限元公式 ...
张晓堤, 王自强
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Jianzhu Gangjiegou Jinzhan, 2014 基于合理的材料弹塑性(损伤)本构关系模型,建立了某30层钢管混凝土框架-钢筋混凝土核心筒结构振动台试验的有限元分析模型,考虑了结构的几何非线性和材料非线性,包括钢材和混凝土材料的塑性损伤演化。有限元分析结果与试验结果基本吻合。在此基础上,进行了不同地震波强度作用下的弹塑性时程分析,获得了核心筒和楼板的损伤演化过程、框架应力和损伤发展过程、基底剪力时程曲线、楼层位移角包络曲线以及地震作用下整体结构的能量反应规律。结果表明,有限元法能够较为清晰地揭示这类结构体系在地震作用下的弹塑性工作状态 ...
尧国皇, 于清, 郭明
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Shiyou jixie, 2014 以隔水管下部挠性接头为研究对象，利用有限元分析软件ABAQUS建立其有限元分析模型，分别对挠性接头弹性体在不同橡胶材料、不同作用力和不同橡胶钢板组合下的轴向刚度与旋转刚度进行了分析。分析结果表明，挠性接头弹性体轴向刚度关于应力呈现非线性变化；弹性体刚度随着钢板与橡胶层数增多或橡胶硬度的增加而变大，随着施加轴向力的增加，弹性体轴向刚度降低；弹性体旋转刚度是一随角度呈非线性的变化量，随着弯矩的增大，弹性体平均旋转刚度减小。该分析结果可以为隔水管挠性接头弹性体的优化设计提供参考。
齐美胜 +3 more
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