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Design flood of ungauged basins based on DEM

Zhang Ting,Feng Ping

Strategic Study of CAE 2011, Volume 13, Issue 12, Pages 68-73

Abstract: been taken for example to discuss the method of design flood calculation by means of combining the DEM(digital elevation model) and the Xin'anjiang model (three components).The problem of estimating the parameters of the runoff model has been solved by using the parametersIn the convergence calculation, the isochrones are obtained by DEM which helps to avoid the cumbersomeWith the establishment of the digital elevation model throughout the country, it is practically significant

Keywords： ungauged area design flood digital elevation model (DEM) isochrones

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Analysis of the Quality of Daily DEM Generation with Geosynchronous InSAR Article

Zefa Yang, Qingjun Zhang, Xiaoli Ding, Wu Chen

Engineering 2020, Volume 6, Issue 8, Pages 913-918 doi: 10.1016/j.eng.2020.07.003

Abstract:

Up-to-date digital elevation model (DEM) products are essential in many fields such as hazards mitigationspace-borne interferometric synthetic aperture radar (InSAR) has been proven to be a valuable tool for DEMThis offers great potential for the daily DEM generation that is desirable yet thus far impossible withIn this work, we systematically analyze the quality of daily GEOSAR DEM.The results indicate that the accuracy of a daily GEOSAR DEM is generally much lower than what can be

Keywords： Daily digital elevation model Interferometric synthetic aperture radar Geosynchronous synthetic aperture

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Hydraulic model for multi-sources reclaimed water pipe network based on EPANET and its applications in

JIA Haifeng, WEI Wei, XIN Kunlun

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1, Pages 57-62 doi: 10.1007/s11783-008-0013-0

Abstract: In order to support the plan, the integrated hydraulic model of planning pipe network was developed basedinto four weak conjunction subzones according to the distribution of reclaimed water plants and the elevation

Keywords： diameter Beijing municipal reclaimed planning elevation

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Digital twin-assisted gearbox dynamic model updating toward fault diagnosis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0748-0

Abstract: One of the core challenges of intelligent fault diagnosis is that the diagnosis model requires numerousGenerating training data using a virtual model is a potential solution for addressing such a problem,and the construction of a high-fidelity virtual model is fundamental and critical for data generationIn this study, a digital twin-assisted dynamic model updating method for fault diagnosis is thus proposedhelical gearbox; the virtual data generated by this model can be used for gear fault diagnosis.

Keywords： digital twin gearbox model construction model updating physical–virtual interaction

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Multiscale mechanical modeling of hydrated cement paste under tensile load using the combined DEM-MD

Yue HOU, Linbing WANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3, Pages 270-278 doi: 10.1007/s11709-017-0408-8

Abstract: In this paper, a combined DEM-MD method is proposed to simulate the crack failure process of HydratedA three-dimensional (3D) multiscale mechanical model is established using the combined Discrete ElementMethod (DEM)-Molecular Dynamics (MD) method in LAMMPS (Large-scale Atomic/Molecular Massively ParallelIn the 3D model, HCP consists of discrete particles and atoms.Simulation results show that the combined DEM-MD model is computationally efficient with good accuracy

Keywords： hydrated cement paste multiscale MD simulation DEM

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On the applicability of different adhesion models in adhesive particulate flows

Guanqing LIU, Shuiqing LI, Qiang YAO,

Frontiers in Energy 2010, Volume 4, Issue 2, Pages 280-286 doi: 10.1007/s11708-009-0062-5

Abstract: It is found that the choice of general model has limited influence on the structure of a constructedOn the contrary, the regime of application for each approximate model is sensitive to the approximationFinally, recent applications of adhesion models in discrete element method (DEM) investigations of fine-particle

Keywords： adhesive contact van der Waals force adhesion model adhesion map DEM

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M-LFM: a multi-level fusion modeling method for shape−performance integrated digital twin of complex

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0708-0

Abstract: As a virtual representation of a specific physical asset, the digital twin has great potential for realizingThis generation of dynamic stress concentration has hindered the exploitation of the digital twin tois interested in achieving real-time performance prediction of dynamic systems by developing a new digitalIn other words, the proposed framework can leverage the advantages of digital twins in a dynamic system: damage monitoring, safety assessment, and other aspects and then promote the development of digital

Keywords： shape−performance integrated digital twin (SPI-DT) multi-level fusion modeling (M-LFM) surrogate model

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Magnetic-porous microspheres with synergistic catalytic activity of small-sized gold nanoparticles and titania matrix

Kadriye Özlem Hamaloğlu, Ebru Sağ, Çiğdem Kip, Erhan Şenlik, Berna Saraço

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 574-585 doi: 10.1007/s11705-019-1799-y

Abstract: Fe O nanoparticles immobilized on porous titania in micron-size range were decorated with small-sized gold nanoparticles and used as a plasmonic catalyst for the reduction of 4-nitrophenol. Monodisperse-porous magnetic titania microspheres were synthesized with bimodal pore-size distribution by the sol-gel templating method. Small-sized gold nanoparticles obtained by the Martin method were attached onto the aminated form of the magnetic titania microspheres. A significant enhancement in the catalytic activity was observed using the gold nanoparticle-decorated magnetic titania microspheres compared to gold nanoparticle-decorated magnetic silica microspheres because of the synergistic effect between small-sized gold nanoparticles and titania. The synergistic effect for gold nanoparticle-attached magnetic titania microspheres could be explained by surface plasmon resonance-induced transfer of hot electrons from gold nanoparticles to the conduction band of titania. Using the proposed catalyst, 4-nitrophenol could be converted to 4-aminophenol in an aqueous solution within 0.5 min. The 4-nitrophenol reduction rates were 2.5–79.3 times higher than those obtained with similar plasmonic catalysts. The selection of micron-size, magnetic, and porous titania microspheres as a support material for the immobilization of small-sized gold nanoparticles provided a recoverable plasmonic catalyst with high reduction ability.

Keywords： small-sized gold nanoparticles magnetic titania microspheres sol-gel template synthesis plasmonic catalysis 4-nitrophenol

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Modeling technology digital geologic stratum body in the proportion of pinch in 3D GIS

Dong Zhi

Strategic Study of CAE 2010, Volume 12, Issue 2, Pages 76-82

Abstract: were used to reason and connect the formation of stratum automatically to generate three-dimensional model

Keywords： three-dimensional digital geologic model virtual borehole multi-proportion of pinch automatical modeling

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of heart failure and left ventricular systolic dysfunction in non-diabetic patients with ST-segment elevation

Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang

Frontiers of Medicine 2021, Volume 15, Issue 1, Pages 70-78 doi: 10.1007/s11684-020-0749-x

Abstract: Recent studies have shown that acute blood glucose elevation in patients with ST-segment elevation myocardial

Keywords： myocardial infarction percutaneous coronary intervention diabetes mellitus fasting glucose heart failure

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Platform governance in the era of AI and the digital economy

Frontiers of Engineering Management 2023, Volume 10, Issue 1, Pages 177-182 doi: 10.1007/s42524-022-0241-1

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Research and Application on Industrial Internet Ecosystem Model

Zhao Min , Liu Junyan , Zhu Duoxian

Strategic Study of CAE 2022, Volume 24, Issue 4, Pages 53-61 doi: 10.15302/J-SSCAE-2022.04.006

Abstract: Based on the DIKW model, this study proposes a digital BDIKW model.” The BDIKW model comprises a bit layer (B), digital data layer (D), digital information layerThe BDIKW model in the digital-knowledge dimension

Bits are digitallyThe BDIKW model explains and clarifies the working principle of digital transformation.Big data, AI, 5G, industrial software, digital twin, and other ICT elements also follow the BDIKW model

Keywords： industrial Internet ecosystem model digital intelligence flow dynamic value flow

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Revisiting digital twins: Origins, fundamentals, and practices

Frontiers of Engineering Management Pages 668-676 doi: 10.1007/s42524-022-0216-2

Abstract: The digital twins (DT) has quickly become a hot topic since it was proposed.modeling and simulation practices of engineering informatization, including virtual manufacturing (VM), modelOn the basis of the two-element VM model, we propose a three-element model to represent DT.

Keywords： virtual manufacturing digital twins modeling and simulation digitization computational engineering

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Uncertainty in Knowledge Representation

Li Deyi

Strategic Study of CAE 2000, Volume 2, Issue 10, Pages 73-79

Abstract: At this junction, this paper presents a new concept of cloud models with three digital characteristics

Keywords： knowledge representation qualitative concept uncertainty cloud model digital characteristics

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Development trend of urban design in “digital age”: Pan-dimensionality and individual-ubiquity

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3, Pages 569-575 doi: 10.1007/s11709-021-0735-7

Abstract: The wave of “digital age” featuring digital information is coming.Digital technology is profoundly changing the societal development direction and evolution paths.creation and adaptation of material space forms that integrate humanities, art, technology and materials, digitalThe result of this evolution is “digital urban design paradigm based on human-computer interaction”,

Keywords： digital age urban design multiple objectives human-computer interaction pan-dimensionality individual-ubiquity