常德高铁站是常益长正线线路上的重要站点,站房分为下部混凝土结构和上部钢屋盖。屋盖采用Γ形刚架作为主要支撑结构,一方面斜柱有效地增加了结构的抗侧刚度,另一方面也与桃花盛开的建筑意象相契合,其结构形式经历了立体三角形桁架、箱桁结合实腹梁、箱形实腹梁3轮方案的推敲演变。针对天窗区域连系桁架拱形下弦的矢高取值,采用Grasshopper+SAP2000联动程序进行自动化参数找形,得到结构受力性能和建筑空间效果均优的平衡点。通过ABAQUS壳单元模型与SAP2000杆单元模型的对比分析 ...
刘康, 包联进, 陈建兴
doaj
[Interpretation of the 2026 Association Research Circulation Osseous (ARCO) International Evidence-Based Clinical Practice Guideline: Diagnosis and Treatment of Nontraumatic Osteonecrosis of the Femoral Head]. [PDF]
Zhao D, Ying J.
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[Inductance calculation method for transcranial magnetic stimulation figure-8 coils Accounting for spatial mutual inductance]. [PDF]
Fan Y +9 more
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海洋柔性管道抗拉铠装钢丝加工过程中需保证缠绕紧密同时降低加工残余应力,以确保其优良的抗拉力学性能。本文基于弹性假设并忽略设备间摩擦等因素,建立了抗拉铠装钢丝缠绕成型过程的力学模型,量化了关键参数缠绕张力、角度及半径等与钢丝截面内力的关系,基于此模型提出加工后钢丝截面残余应力的预测方法。同时通过ABAQUS软件模拟了钢丝缠绕的过程,结果表明残余应力理论预测值与数值模拟结果误差不超过4.38%,验证了理论模型的正确性。最后提出了钢丝缠绕紧密的标准 ...
doaj
[Effect of posteromedial tibial plateau osteophytes on joint gap balance during robot-assisted total knee arthroplasty]. [PDF]
Ma P, Liu Y, Liu Y, Lü J, Liu F.
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[Value of shear wave elastography in the early diagnosis of DPN in patients with type 2 diabetes mellitus]. [PDF]
Zhang YJ +7 more
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以裸地为对照,分别对林支截留降雨的作用,土壤物理化学性质及涵养水源的能力,土壤的渗透能力,土训中含水量随时间的动态变化,植被地表径流及产沙量,植被生物量及根系分布等进行了定点、定量观测研究。结果表明,圣诞树人工林在涵养水源、保持水土、改良土壤、提供薪材等方面,具有显著的作用,是水土流失严重地区和干旱瘠薄地区植被恢复的优良先锋树种。
doaj
[Impact of coronal plane alignment of knee phenotype alteration on short-term effectiveness in robot-assisted total knee arthroplasty]. [PDF]
Li P, Yang P, Tian R, Han C.
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[Comparison between Taylor spatial frame and Ilizarov circular frame in treatment of large-segment tibial bone defect]. [PDF]
Shi B, Shu H.
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[Advances on limb reconstruction technology for bone infection]. [PDF]
Su Z, Xie Z.
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