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2019 highlights of the structural revision of natural product
Zongjia Chen, Mark A. Rizzacasa
《化学科学与工程前沿(英文)》 2021年 第15卷 第3期 页码 595-601 doi: 10.1007/s11705-020-1971-4
Highly Aromatic Norditerpenoid Heterodimers and Monomers from Trigonostemon fragilis
Jun-Su Zhou,Long Cheng,Yuan Gao,Zhan-Peng Ge,Bin Zhou,Jing-Ya Li,Jin-Xin Zhao,Jian-Min Yue,
《工程(英文)》 doi: 10.1016/j.eng.2023.09.015
关键词: Norditerpenoid heterodimer Trigonostemon fragilis Euphorbiaceae Trigofragiloid Structural revision adenosine triphosphate-citrate lyase (ACLY) inhibitory activity
3D打印髋关节假体为复杂髋臼骨缺损翻修全髋关节置换术提供精准重建、稳定固定和功能恢复 Article
郝永强, 王磊, 姜闻博, 武文, 艾松涛, 沈路, 赵双, 戴尅戎
《工程(英文)》 2020年 第6卷 第11期 页码 1285-1290 doi: 10.1016/j.eng.2020.04.013
复杂而严重的髋臼骨缺损是人工髋关节置换术重建过程中最主要的挑战和难点。本研究旨在探讨3D打印技术在重建这种复杂髋臼骨缺损中的优势。我们回顾性分析了3例使用3D打印技术治疗的复杂髋臼骨缺损患者的预后,其中一例患者涉及双侧缺损重建。这些髋臼骨缺损的共同特点为常规方法难以重建。因此,在本研究中,我们首先结合了医学影像学分析、计算机软件模拟和重建(如MIMICS软件和西门子NX软件)及实际手术经验对缺损体积、假体重建稳定性和假体安装精度进行预测和评估,Harris髋关节评分被用来评估肢体功能。我们的结果表明3D打印假体可以精准重建骨缺损,并获得良好的假体稳定性,并且Harris髋关节评分显示3位患者肢体功能得到较好的恢复。总而言之,3D打印技术在人工髋关节翻修术中应对复杂且程度较为严重的骨缺损具有非常好的治疗效果,最终患者获得满意的预后。
Approximation of structural damping and input excitation force
Mohammad SALAVATI
《结构与土木工程前沿(英文)》 2017年 第11卷 第2期 页码 244-254 doi: 10.1007/s11709-016-0371-9
关键词: structural modal parameters damping identification method input excitation force identification Inverse problem
Effects of green roof damping and configuration on structural seismic response
《结构与土木工程前沿(英文)》 页码 1133-1144 doi: 10.1007/s11709-023-0959-9
关键词: green infrastructure green roof structural resilience seismic design
Xinqun ZHU, Hong HAO
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 321-333 doi: 10.1007/s11709-012-0161-y
关键词: integrated structural health monitoring operational conditions vibration and guided wave
Digital image correlation-based structural state detection through deep learning
《结构与土木工程前沿(英文)》 2022年 第16卷 第1期 页码 45-56 doi: 10.1007/s11709-021-0777-x
关键词: structural state detection deep learning digital image correlation vibration signal steel frame
Ali KARIMPOUR, Salam RAHMATALLA
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1331-1348 doi: 10.1007/s11709-020-0686-4
关键词: structural model validation eigenvalue problem response surface inverse problems
Advanced analysis for structural steel building design
CHEN Wai Fah
《结构与土木工程前沿(英文)》 2008年 第2卷 第3期 页码 189-196 doi: 10.1007/s11709-008-0024-8
关键词: building Specifications comprehensive introduction structural resistance traditional
Estimation of optimum design of structural systems via machine learning
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1441-1452 doi: 10.1007/s11709-021-0774-0
关键词: optimization metaheuristic algorithms harmony search structural designs machine learning artificial neural networks
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 425-437 doi: 10.1007/s11709-017-0427-5
In recent decades, many public buildings, located in seismic-prone residential areas, had to grapple with abnormal loads against which the structures were unguarded. In this piece of research, an ordinary three dimensional reinforced concrete building is selected as case study. The building is located in an earthquake-prone region; however, it is designed according to seismic building codes. Yet, it is not shielded against abnormal loads, such as blasts. It is assumed that the building suffers a blast load, due to mechanical/thermal installation failure during or after intense seismic oscillations. These two critical incidents are regarded codependent and compatible. So the researchers developed scenarios and tried to assess different probabilities for each scenario and carried out an analysis to ensure if progressive collapse had set in or not. In the first step, two analysis models were used for each scenario; a non-linear dynamic time history analysis and a blast local dynamic analysis. In the second step, having the structural destructions of the first step in view, a pushdown analysis was carried out to determine the severity of progressive collapse and assess building robustness. Finally, the annual probability of structural collapse under simultaneous earthquake and blast loads was estimated and offered.
关键词: gas blast pushdown analysis progressive collapse annual probability of structural collapse 3D model of structure
Stress-strain relationship with soil structural parameters of collapse loess
SHAO Shengjun, LONG Jiyong, YU Qinggao
《结构与土木工程前沿(英文)》 2008年 第2卷 第2期 页码 151-160 doi: 10.1007/s11709-008-0020-z
关键词: hardening shearing expansion unsaturated structural property mathematical expression
XFEM schemes for level set based structural optimization
Li LI, Michael Yu WANG, Peng WEI
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 335-356 doi: 10.1007/s11465-012-0351-2
In this paper, some elegant extended finite element method (XFEM) schemes for level set method structural optimization are proposed. Firstly, two- dimension (2D) and three-dimension (3D) XFEM schemes with partition integral method are developed and numerical examples are employed to evaluate their accuracy, which indicate that an accurate analysis result can be obtained on the structural boundary. Furthermore, the methods for improving the computational accuracy and efficiency of XFEM are studied, which include the XFEM integral scheme without quadrature sub-cells and higher order element XFEM scheme. Numerical examples show that the XFEM scheme without quadrature sub-cells can yield similar accuracy of structural analysis while prominently reducing the time cost and that higher order XFEM elements can improve the computational accuracy of structural analysis in the boundary elements, but the time cost is increasing. Therefore, the balance of time cost between FE system scale and the order of element needs to be discussed. Finally, the reliability and advantages of the proposed XFEM schemes are illustrated with several 2D and 3D mean compliance minimization examples that are widely used in the recent literature of structural topology optimization. All numerical results demonstrate that the proposed XFEM is a promising structural analysis approach for structural optimization with the level set method.
关键词: structural optimization level set method extended finite element method (XFEM) computational accuracy and efficiency
Shear assessment of compression flanges of structural concrete T-beams
Bj?rn SCHüTTE,Viktor SIGRIST
《结构与土木工程前沿(英文)》 2014年 第8卷 第4期 页码 354-361 doi: 10.1007/s11709-014-0082-z
关键词: concrete structures structural assessment stress field analysis shear
Implementation of an optimum algorithm for structural reliability analysis based on FEM
CHENG Ying, TU Hong-mao, FAN Hong-li
《机械工程前沿(英文)》 2006年 第1卷 第4期 页码 468-471 doi: 10.1007/s11465-006-0061-8
关键词: satisfactory interpretation algorithm structural reliability stochastic FE
标题 作者 时间 类型 操作
Highly Aromatic Norditerpenoid Heterodimers and Monomers from Trigonostemon fragilis
Jun-Su Zhou,Long Cheng,Yuan Gao,Zhan-Peng Ge,Bin Zhou,Jing-Ya Li,Jin-Xin Zhao,Jian-Min Yue,
期刊论文
Development of an integrated structural health monitoring system for bridge structures in operational
Xinqun ZHU, Hong HAO
期刊论文
Identification of structural parameters and boundary conditions using a minimum number of measurement
Ali KARIMPOUR, Salam RAHMATALLA
期刊论文
Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
期刊论文
Stress-strain relationship with soil structural parameters of collapse loess
SHAO Shengjun, LONG Jiyong, YU Qinggao
期刊论文
Shear assessment of compression flanges of structural concrete T-beams
Bj?rn SCHüTTE,Viktor SIGRIST
期刊论文