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Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 286-292 doi: 10.1007/s11709-007-0037-8

Abstract: forces and nodal displacements were compared and it showed that they accord well with each other under low-levelWhile under high-level load, the experimental value was bigger than the theoretical value due to thesuspendome has a wide application prospect with the advantages of perfect mechanical characteristics, lowsteel consumption, convenient construction and low cost.

Keywords： Tianjin     influence     displacement     high-level     low-level    

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Policy entry points for facilitating a transition towards a low-carbon electricity future

Frontiers of Engineering Management   Pages 462-472 doi: 10.1007/s42524-022-0214-4

Abstract: Guided by the “essence” of the multi-level perspective — a prominent framework for the study of energy

Keywords： electricity transition     multi-level perspective     policy entry points    

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Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon

Pengyi ZHANG , Bo ZHANG , Rui SHI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 281-288 doi: 10.1007/s11783-009-0032-5

Abstract: carbon (AC) by a sol immobilization method and were used to investigate their catalytic activity for low-level

Keywords： ozone decomposition     activated carbon     gold nanoparticles     catalysis     sodium citrate     microwave    

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High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 56-62

Abstract: present paper reviews the recent developments of electron-bombarded charge coupled devices (EBCCD) for low-light-leveland excellent MTF and, for this reason, are superior to conventional ICCD approaches under all light levelthese new, high performance devices of EBCCD are in an advantageous position for many applications in low-light-lev-el

Keywords： low-light-level imaging     charge-coupled-devices     electron-bombarded    

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Impact of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0844-z

Abstract: The bioactivity was enhanced by preozonation under low temperature conditions.Higher level of BDOC/AOC and DO may enhance the nitrifying performance.High level of biodiversity and bioactivity may help maintain the stability of filters.To explore the influence of preozonation under low temperature, the factors such as dissolved oxygen

Keywords： Preozonation     BAC filtration     High ammonia level     Bacterial activity     Microbial community structure     Pilot    

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Evaluation Method for the Maturity Levels of Green and Low-Carbon Emerging Industries

Sun Xudong, Li Xuesong, Zhang Bo, Peng Suping

Strategic Study of CAE 2020, Volume 22, Issue 2,   Pages 98-107 doi: 10.15302/J-SSCAE-2020.02.014

Abstract: The development of green and low-carbon industries, an important task of China’s ecological civilizationThe green and low-carbon emerging industry is represented by emerging energy technologies, energy conservationMeanwhile, the maturity evaluation model and index system of the green and low-carbon industries areThe analysis shows that this industry is relatively mature, but the development of market maturity levelFurthermore, we suggest that an annual evaluation mechanism for the maturity level of the green and low-carbon

Keywords： green and low-carbon     emerging industry     industry maturity level     new energy technology     energy conservation    

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Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 114-120 doi: 10.1007/s11709-014-0267-5

Abstract: critical examination of existing random field models of heterogeneous two-phase media with emphasis on level-cutThe case of random level sets, often used to represent the geometry of physical systems, is also examined

Keywords： microstructure     random fields     level sets     shape recovery     two-phase media    

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The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 369-379 doi: 10.1007/s11709-017-0398-6

Abstract: Bed level elevations are measured and compared with the theoretical equilibrium profile.In the next stage, following extensive investigations, the bed level changes due to arise in sea levelThe mechanism of beach re-treatment due to a rise in sea level is considered based on the simplifiedComparison of the equilibrium profiles for different cases of sea level rise, clearly shows that becauseof the sediment transport induced by the fluctuation of the water level, the beach profile in the surf

Keywords： wave     coastal zone     beach morphology     evolution     equilibrium profile     sea level rise    

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Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: The level set method (LSM), which is transplanted from the computer graphics field, has been successfullyIn this study, a level set band method is proposed to overcome this drawback in handling topology changesin the level set framework.improve the continuity of objective and constraint functions by incorporating one parameter, namely, levelThe proposed method demonstrates a flexible topology change by applying a certain size of the level set

Keywords： level set method     topology optimization     density-based method     level set band    

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Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 48-52

Abstract:

In this paper, we researched the key technology of the level pre-assemblyLevel pre-assembly of steel tower fills the technology gaps in China and provides a strong basis for

Keywords： steel tower     level pre-assembly     support control     apply level force    

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Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 248-258 doi: 10.1007/s42524-019-0069-5

Abstract: However, in literatures related to lot-sizing problem, WCR has only been studied in the single-levelIn this paper, we initially adopt WCR model for a multi-level case.A two-level (supplier–customer) model is established on the basis of the classic multi-level lot-sizingTo tackle this problem, we propose sequential and centralized approaches to solve the two-level case

Keywords： two-level ULS problem     lot-sizing     working capital requirement     ZIO property     infinite production capacity    

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Understanding the demand predictability of bike share systems: A station-level analysis

Frontiers of Engineering Management   Pages 551-565 doi: 10.1007/s42524-023-0279-8

Abstract: Divvy bike-share one-year data from Chicago, USA, we measured demand entropy and quantified the station-levelshow that entropy of demands across stations is polarized as some stations exhibit high uncertainty (a lowLastly, we identified that key factors contributing to station-level entropy and predictability includeBSS demand prediction, which can help decision makers and system operators anticipate diverse station-level

Keywords： bike share systems     demand prediction     prediction errors     machine learning     entropy    

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Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 131-145 doi: 10.1007/s11465-006-0018-y

Abstract: We propose a level set method-based framework for the conceptual design of compliant mechanisms.The geometric shape of the compliant mechanism is represented as the zero level set of a one-higher dimensionallevel set function, and the dynamic variations of the shape are governed by the Hamilton-Jacobi partialThe application of level set methods endows the optimization process with the particular quality that

Keywords： splitting     minimum     dimensional optimization     Hamilton-Jacobi     topological    

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System engineering for water pollution control at the watershed level in China

Wei MENG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11783-009-0037-0

Abstract: The present water pollution situation at watershed level in China has been systematically analyzed.The problems of water pollution control at watershed level include a lack of thought and approach, developmentalThe strategies of this project include establishing a water pollution control system at watershed level

Keywords： water pollution control     watershed     system engineering     sustainability     integrated watershed management     key specific project of science and technology    

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Title Author Date Type Operation

Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Journal Article

Patrick Landais: High, Intermediate and Low-Level Radioactive Waste Disposal in France (2019.5.15)

Patrick Landais(高级职称)

23 Apr 2021

Conference Videos

Policy entry points for facilitating a transition towards a low-carbon electricity future

Journal Article

Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon

Pengyi ZHANG , Bo ZHANG , Rui SHI ,

Journal Article

High Sensitive Electron-Bombarded CCD for Low Light Level Imaging

Zhou Liwei,Liu Guangrong,Gao Zhiyun,Wang Zhongchun

Journal Article

Impact of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Journal Article

Evaluation Method for the Maturity Levels of Green and Low-Carbon Emerging Industries

Sun Xudong, Li Xuesong, Zhang Bo, Peng Suping

Journal Article

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Journal Article

The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

Journal Article

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Journal Article

Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

Journal Article

Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Journal Article

Understanding the demand predictability of bike share systems: A station-level analysis

Journal Article

Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Journal Article

System engineering for water pollution control at the watershed level in China

Wei MENG,

Journal Article