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3D Printing Hip Prostheses Offer Accurate Reconstruction, Stable Fixation, and Functional Recovery for Article

Yongqiang Hao, Lei Wang, Wenbo Jiang, Wen Wu, Songtao Ai, Lu Shen, Shuang Zhao, Kerong Dai

Engineering 2020, Volume 6, Issue 11,   Pages 1285-1290 doi: 10.1016/j.eng.2020.04.013

Abstract: This study aimed to explore the advantages of three-dimensional (3D) printing technology in the reconstructionReconstruction of bone defect by conventional methods was difficult in these patients.

Keywords： 3D printing     Hip revision     Complex and large acetabular bone defect     Accurate reconstruction    

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Isogeometric analysis based on geometric reconstruction models

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 782-797 doi: 10.1007/s11465-021-0648-0

Abstract: represented by boundary polygons or point cloud and is embedded into a regular background grid, and a model reconstruction

Keywords： isogeometric analysis     reconstruction model     level set function     trimmed element     point cloud    

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Fractal characteristic evaluation and interpolation reconstruction for surface topography of drilled

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 840-854 doi: 10.1007/s11465-021-0643-5

Abstract: Compared with the model in published literature, the proposed model has equal reconstruction effect in

Keywords： surface topography     fractal evaluation     fractal interpolation     reconstruction     composite    

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Smart model for accurate estimation of solar radiation

Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 383-399 doi: 10.1007/s11708-017-0505-3

Abstract: Prediction of solar radiation has drawn increasing attention in the recent years. This is because of the lack of solar radiation measurement stations. In the present work, 14 solar radiation models have been used to assess monthly global solar radiation on a horizontal surface as function of three parameters: extraterrestrial solar irradiance ( ), duration sunshine ( ) and daylight hours ( ). Since it has been observed that each model is adequate for some months of the year, one model cannot be used for the prediction of the whole year. Therefore, a smart hybrid system is proposed which selects, based on the intelligent rules, the most suitable prediction model of the 14 models listed in this study. For the test and evaluation of the proposed models, Tamanrasset city, which is located in the south of Algeria, is selected for this study. The meteorological data sets of five years (2000–2004) have been collected from the Algerian National Office of Meteorology (NOM), and two spatial databases. The results indicate that the new hybrid model is capable of predicting the monthly global solar radiation, which offers an excellent measuring accuracy of values ranging from 93% to 97% in this location.

Keywords： global solar radiation     statistical indicator     hybrid model     spatial database     correlation coefficients    

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Improving Internationally Core Competences Based on the Capabilities of Precise and Accurate Project

Zhen-you Li,Ji-shan He,Meng-jun Wang

Frontiers of Engineering Management 2016, Volume 3, Issue 3,   Pages 231-238 doi: 10.15302/J-FEM-2016032

Abstract: Modern international project management has entered the phase of precise and accurate project managementthere has been lack of explicitly unanimous definition for the capability dimensions of precise and accurateThe required core capabilities based on the precise and accurate project management for various ringsThrough studying the effects of the internationally core competences based on precise and accurate project

Keywords： precise and accurate project management     project strategic planning     decision-making     project supervision    

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Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 406-410 doi: 10.1007/s11684-012-0217-3

Abstract: In conclusion, SoesO2 is more accurate and enables earlier detection of hypoxemia when

Keywords： esophageal pulse oximetry     conventional pulse oximetry     hypoxemia    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: This study proposes a method of full-field and real-time strain reconstruction of an aero-engine bladeThe high consistency between the reconstructed and measured results demonstrates the accurate strain

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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A fast and accurate dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 176-189 doi: 10.1007/s11709-018-0486-2

Abstract: Dynamic relaxation method (DRM) is one of the suitable numerical procedures for nonlinear structural analysis. Adding the fictitious inertia and damping forces to the static equation, and turning it to the dynamic system, are the basis of this technique. Proper selection of the DRM artificial factors leads to the better convergence rate and efficient solutions. This study aims to increase the numerical stability, and to decrease the analysis time. To fulfil this objective, the reduction rate of analysis error for consecutive iterations is minimized. Based on this formulation, a new time step is found for the viscous dynamic relaxation. After combining this novel relationship with the other DRM factors, various geometrical nonlinear structures, such as, trusses, frames and shells are analyzed. The obtained results verify the efficiency of authors’ scheme.

Keywords： viscous dynamic relaxation     time step     displacement error     geometric nonlinear analysis    

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Shape reconstruction of parallelogram flaw

ZHENG Gangfeng, WU Bin, HE Cunfu

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 17-22 doi: 10.1007/s11465-008-0015-4

Abstract: To reconstruct the shape of the scatterer in elastic media, the authors deduce the Born approximation solution of the two-dimensional scattering problem, which includes the shape factor that embodies all information about the shape of the scatterer. Accordingly, the change in the shape of the scatterer only necessitates the number of the corresponding new shape factors. For a parallelogram void in a long Al rod, its shape factor can be obtained. In view of the definition of a characteristic function, the shape factor has a corresponding integral representation. Obviously, the shape factor can be considered as a Fourier transform of the characteristic function, which is reconstructed from the inverse Fourier transform. The integral equation is considered as the basic equation to reconstruct the shape of the scatterer. The identification of the geometrical character of a flaw is then given by the two dimensional inverse Born approximation in a low-frequency range. For the parallelogram void, a theoretical calculating identification is performed. At the same time, the numerical results are obtained by the finite element method.

Keywords： approximation     scatterer     scattering problem     information     inverse    

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The ecological system and the regionalization of landscape reconstruction in northwest of China

Peicheng LI,Guoyuan DU,Qilei LI,Jinfeng WANG,Feimin ZHENG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 4,   Pages 291-298 doi: 10.15302/J-FASE-2014033

Abstract: Thus, the Chinese government is strengthening research on improvement and reconstruction of the ecologicalIt is suggested that the reconstruction of landscape should be conducted by step by step regionalizationThe first level regionalization results of reconstruction of landscape are discussed.

Keywords： reconstruction of landscape     ecological system     the northwest area of China     science and technology action    

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Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings

Yehua SUN, Guquan SONG, Hui LV

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 653-666 doi: 10.1007/s11709-018-0503-5

Abstract: Recent research about reconstruction methods mainly used the interpolation reconstruction of the fluctuatingpressure at the edge of the building, the work presented in this paper focuses on the extrapolation reconstructionThe studies show that it works well for not only interpolation reconstruction but also extrapolationreconstruction.different variogram, preliminary results suggest less time consumption and high efficiency in extrapolation reconstruction

Keywords： extrapolation reconstruction     proper orthogonal decomposition     Kriging method     von Kármán function     Hurst    

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A dynamic stiffness-based framework for harmonic input estimation and response reconstruction considering

Yixian LI; Limin SUN; Wang ZHU; Wei ZHANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 448-460 doi: 10.1007/s11709-022-0805-5

Abstract: In structural health monitoring (SHM), the measurement is point-wise but structures are continuous. Thus, input estimation has become a hot research subject with which the full-field structural response can be calculated with a finite element model (FEM). This paper proposes a framework based on the dynamic stiffness theory, to estimate harmonic input, reconstruct responses, and to localize damages from seriously deficient measurements. To begin, Fourier transform converts the dynamic equilibrium equation to an equivalent static one in the frequency domain, which is under-determined since the dimension of measurement vector is far less than the FEM-node number. The principal component analysis has been adopted to “compress” the under-determined equation, and formed an over-determined equation to estimate the unknown input. Then, inverse Fourier transform converts the estimated input in the frequency domain to the time domain. Applying this to the FEM can reconstruct the target responses. If a structure is damaged, the estimated nodal force can localize the damage. To improve the damage-detection accuracy, a multi-measurement-based indicator has been proposed. Numerical simulations have validated that the proposed framework can capably estimate input and reconstruct multi-types of full-field responses, and the damage indicator can localize minor damages even with the existence of noise.

Keywords： dynamic stiffness     principal component analysis     response reconstruction     damage localization     under-determined    

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Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 1-31 doi: 10.1007/s11465-020-0602-6

Abstract: This paper provides an in-depth perspective of surface topography reconstruction for optical interferometric

Keywords： surface topography     measurement     optical interferometry     coherence envelope     phase-shifting algorithm    

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Ontological reconstruction of the clinical terminology of traditional Chinese medicine

Li Ma,Baoyan Liu,Qi Xie,Shusong Mao,Zhiwei Cui

Frontiers of Medicine 2014, Volume 8, Issue 3,   Pages 358-361 doi: 10.1007/s11684-014-0348-9

Abstract:

This study proposes the ontological reconstruction of the current clinical terminology of traditionalIt also provides an overview of preliminary work related to the said reconstruction, including the ontology-basedWe conclude that the ontological reconstruction of TCM clinical terminology provides a proper translation

Keywords： ontology     traditional Chinese medicine     clinical terminology    

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Animage-based approach to the reconstruction of ancient architectures by extracting and arranging 3D

Divya Udayan J,HyungSeok KIM,Jee-In KIM

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 12-27 doi: 10.1631/FITEE.1400141

Abstract: The objective of this research is the rapid reconstruction of ancient buildings of historical importancedigital effects in applications such as tourism, games, and entertainment, which do not require very accurateIn this article, we consider the reconstruction of ancient Mughal architecture including the Taj MahalWe propose a modeling pipeline that makes an easy reconstruction possible using a single photograph takenThis approach is faster and more accurate than creating a model from scratch because the initial reconstruction

Keywords： Digital reconstruction     3D virtual world     3D spatial components     Vision and scene understanding    

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Title Author Date Type Operation

3D Printing Hip Prostheses Offer Accurate Reconstruction, Stable Fixation, and Functional Recovery for

Yongqiang Hao, Lei Wang, Wenbo Jiang, Wen Wu, Songtao Ai, Lu Shen, Shuang Zhao, Kerong Dai

Journal Article

Isogeometric analysis based on geometric reconstruction models

Journal Article

Fractal characteristic evaluation and interpolation reconstruction for surface topography of drilled

Journal Article

Smart model for accurate estimation of solar radiation

Lazhar ACHOUR, Malek BOUHARKAT, Ouarda ASSAS, Omar BEHAR

Journal Article

Improving Internationally Core Competences Based on the Capabilities of Precise and Accurate Project

Zhen-you Li,Ji-shan He,Meng-jun Wang

Journal Article

Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

A fast and accurate dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Journal Article

Shape reconstruction of parallelogram flaw

ZHENG Gangfeng, WU Bin, HE Cunfu

Journal Article

The ecological system and the regionalization of landscape reconstruction in northwest of China

Peicheng LI,Guoyuan DU,Qilei LI,Jinfeng WANG,Feimin ZHENG

Journal Article

Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings

Yehua SUN, Guquan SONG, Hui LV

Journal Article

A dynamic stiffness-based framework for harmonic input estimation and response reconstruction considering

Yixian LI; Limin SUN; Wang ZHU; Wei ZHANG

Journal Article

Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Journal Article

Ontological reconstruction of the clinical terminology of traditional Chinese medicine

Li Ma,Baoyan Liu,Qi Xie,Shusong Mao,Zhiwei Cui

Journal Article

Animage-based approach to the reconstruction of ancient architectures by extracting and arranging 3D

Divya Udayan J,HyungSeok KIM,Jee-In KIM

Journal Article