Resource Type

Journal Article 446

Conference Videos 12

Conference Information 1

Year

2024 3

2023 31

2022 55

2021 31

2020 33

2019 19

2018 25

2017 27

2016 16

2015 12

2014 20

2013 17

2012 12

2011 16

2010 11

2009 16

2008 28

2007 19

2006 21

2005 10

open ︾

Keywords

space 5

China's space activities 4

phase change material 4

3D printing 3

China 3

function 3

simulation 3

1 2

Computational imaging 2

Crystal structure 2

Machine learning 2

Phase noise 2

amorphous phase 2

application engineering 2

benzene 2

heat transfer 2

induction motor 2

management 2

microwave remote sensing 2

open ︾

Search scope:

排序： Display mode:

Dynamic characteristics of an NC table with phase space reconstruction

Linhong WANG, Bo WU, Runsheng DU, Shuzi YANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 179-183 doi: 10.1007/s11465-009-0018-9

Abstract: Phase space reconstruction is an effective approach for researching dynamic behaviors of a system withBased on the theory and method for phase space reconstruction, the correlation dimension, maximum LyapunovThe characteristic quantities such as the power spectrum, phase trajectories, correlation dimension,

Keywords： NC table     chaotic characteristic     phase-space reconstruction     correlation dimension     maximum Lyapunov exponent    

HTML PDF Collect

Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and the

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 490-497 doi: 10.15302/J-FEM-2017008

Abstract: After the matching process, space-time-diagrams are created of the probe data showing traffic situationdetails over space and time.total traffic flow are sending their GPS data in shorter time intervals, a high quality and precise reconstructionTraffic reconstruction is followed by a translation into traffic information messages, which can be sent

Keywords： floating car data     map matching     three phase traffic theory     traffic reconstruction     traffic service quality    

HTML PDF Collect

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 interferometricbackground and recent advances of fringe analysis algorithms, including coherence peak sensing and phase-shifting

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

HTML PDF Collect

Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 166-173 doi: 10.1007/s11708-010-0105-y

Abstract: The optimization of a space power system is greatly affected by the radiation heat transfer in a liquidRadiation heat transfer in a two-dimensional bed of phase-change particle is modeled by solving the radiativeMultiple factors affect heat flux in the LDR, such as size distribution, flow velocity, phase change

Keywords： radiation heat transfer     particle polydispersion     liquid droplet radiator     phase change    

HTML PDF Collect

Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1311-1319 doi: 10.1007/s11705-022-2281-9

Abstract: Cu–ZnO catalyst with improved stability was fabricated by organic acid treatment method for the liquid-phasetwo forms of ZnO took the main responsibility for the deactivation of Cu–ZnO catalysts in the liquid-phaseThe reconstruction of the Cu–ZnO catalyst by the organic acid treatment method resulted in a new Cu–ZnOFurthermore, the deactivation mechanism of Cu–ZnO catalysts in liquid-phase diester hydrogenation in

Keywords： liquid phase     hydrogenation     Cu–ZnO     deactivation mechanism     1     4-butanediol     diester    

HTML PDF Collect

The countermeasures of reducing and preventing disasters and “remaining space for energy”

Chen Gangyi,Lu Yajun

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 92-96

Abstract: conversation law proposed by Ouyang Shoucheng, which revealed that energy can not break away from matter and spaceshould be remained for energy, the relationships of energy space and natural disaster and catastrophicThe application and countermeasures of energy space in reconstruction after disaster, plan of flood controlIt was emphasized that natural disasters and artificial construction project should remain space forIt was suggested that "remaining space for energy"  is the new scientific proposition

Keywords： stir kinetic energy     energy space     disaster prevention and reduction     reconstruction after disaster    

HTML PDF Collect

On 3Dface reconstruction via cascaded regression in shape space Article

Feng LIU, Dan ZENG, Jing LI, Qi-jun ZHAO

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 12,   Pages 1978-1990 doi: 10.1631/FITEE.1700253

Abstract: regression has been recently applied to reconstruct 3D faces from single 2D images directly in shape spaceWe investigate thoroughly such cascaded regression based 3D face reconstruction approaches from fourTo answer these questions, a simplified cascaded regression based 3D face reconstruction method is devisedComprehensive evaluation experiments have been carried out to compare to other 3D face reconstructionThe results not only deepen the understanding of cascaded regression based 3D face reconstruction approaches

Keywords： 3D face reconstruction     Cascaded regressor     Shape space     Real-time    

HTML PDF Collect

Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 516-526 doi: 10.1007/s11708-022-0844-6

Abstract: structure, high reliability, and high performance, and is expected to become an essential refrigerator for spacegas-coupled regenerative refrigerator, the energy flow distribution between the two stages, and optimal phaseThe effects of displacer displacement on the pressure wave, phase difference, acoustic power distributionhydrogen and liquid oxygen temperatures, which can be used to cool small-scale zero boil-off systems and space

Keywords： Stirling/pulse tube refrigerator     displacer displacement     space application     phase shift     energy distribution    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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 blade

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

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

Title Author Date Type Operation

Dynamic characteristics of an NC table with phase space reconstruction

Linhong WANG, Bo WU, Runsheng DU, Shuzi YANG

Journal Article

Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and the

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Journal Article

Development of surface reconstruction algorithms for optical interferometric measurement

Dongxu WU, Fengzhou FANG

Journal Article

Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Journal Article

Reconstruction of Cu–ZnO catalyst by organic acid and deactivation mechanism in liquid-phase hydrogenation

Journal Article

The countermeasures of reducing and preventing disasters and “remaining space for energy”

Chen Gangyi,Lu Yajun

Journal Article

On 3Dface reconstruction via cascaded regression in shape space

Feng LIU, Dan ZENG, Jing LI, Qi-jun ZHAO

Journal Article

Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Journal Article

Isogeometric analysis based on geometric reconstruction models

Journal Article

Fractal characteristic evaluation and interpolation reconstruction for surface topography of drilled

Journal Article

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

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