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Cementing technology of gas wells with complex pressure on Northwest Sichuan

Zhou Shiming,Zeng Yijin

Strategic Study of CAE 2010, Volume 12, Issue 10,   Pages 50-55

Abstract: High temperature and hiang pressure and high H2S are typical character of those gas fieldsThere have several sets of strata pressure systems in land sediment and sea sediment stratums, and the

Keywords： complex strata pressure     thin annular     gas migration     pretermission     latex     sector-by-sector surcharging    

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Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 763-779 doi: 10.1007/s11709-023-0917-6

Abstract: prefabricated specimens for underground assembled structures is proposed, which can realistically reflect the stratathe seismic performance and damage modes are analyzed comprehensively to reveal the mechanism of the strataTest results show that the strata restraint effect effectively improves the energy dissipation capacityHowever, the strata restraint effect reduces the ductility of the precast sidewall components and aggravatesAdditionally, the strata restraint effect significantly affects the seismic performance and damage mode

Keywords： underground structures     precast sidewall specimen     seismic test method     bearing capacity     energy dissipation capacity     plastic deformation    

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Fundamentals and Processes of Fluid Pressure Forming Technology for Complex Thin-Walled Components Review

Shijian Yuan

Engineering 2021, Volume 7, Issue 3,   Pages 358-366 doi: 10.1016/j.eng.2020.08.014

Abstract:

A new generation of fluid pressure forming technology has been developed for the three typical structurespaper, an overall review is introduced on the state of the art in fundamentals and processes for lower-pressurehydroforming of tubular components, double-sided pressure hydroforming of sheet components, die-lessIn addition, future development directions of fluid pressure forming technology are discussed, including

Keywords： Fluid pressure forming     Hydroforming     Hot medium pressure forming     Thin-walled components     Stress state    

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Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 533-545 doi: 10.1007/s11709-023-0946-1

Abstract: of shield machines exhibit unsatisfactory adaptability and performance during the soft–hard varied strata, cutting performance, and adaptability of disc cutters during shield tunneling in soft–hard varied strataThe tangential loads of the disc cutters during the cutting of four typical soft-strata excavation faceA greater penetration is suggested for soft-strata tunneling to allow the disc cutters to rotate smoothly

Keywords： shield tunneling     disc cutter load     laboratory excavation test     numerical calculation     soft–hard varied strata    

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Spatial Discrimination of Complex, Low-Relief Quaternary Siliciclastic Strata Using Airborne Lidar and Article

Jeffrey G. Paine,Edward W. Collins,Lucie Costard

Engineering 2018, Volume 4, Issue 5,   Pages 676-684 doi: 10.1016/j.eng.2018.09.005

Abstract: subtle lateral and vertical boundaries of lithologic units on the Texas Coastal Plain within Quaternary strata

Keywords： Lithology     Geophysics     Electromagnetic induction     Lidar    

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GID complex regulates the differentiation of neural stem cells by destabilizing TET2

Frontiers of Medicine doi: 10.1007/s11684-023-1007-9

Abstract: interacts with the core subunits of the glucose-induced degradation-deficient (GID) ubiquitin ligase complex, an evolutionarily conserved ubiquitin ligase complex and is ubiquitinated by itself.The protein levels of GID complex subunits increased reciprocally with TET2 level upon NSC differentiationThe silencing of the core subunits of the GID complex, including WDR26 and ARMC8, attenuated the ubiquitinationOur results illustrated that the GID complex negatively regulates TET2 protein stability, further modulates

Keywords： TET2     GID complex     neural stem cells     differentiation of neurons    

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Footholds optimization for legged robots walking on complex terrain

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0742-y

Abstract: novel continuous footholds optimization method for legged robots to expand their walking ability on complexslipping or tripping on the edge of obstacles, and to improve its stability and safety when walking on compleximplemented the algorithm on a hexapod robot, and verified its feasibility in a walking experiment on a complex

Keywords： footholds optimization     legged robot     complex terrain adapting     hexapod robot     locomotion control    

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Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth pressureThe influences of the stratum distribution (i.e., bedrock height in the upper-soft and lower-hard strataResults indicated that the increase of pitch angle in the upper-soft and lower-hard strata causes a sharpreference for moment determination and the trajectory prediction of posture rectification in compound strata

Keywords： additional position change     deviation correction trajectory     earth pressure balance shield     mechanical    

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Special issue: Reliability management of complex system

Frontiers of Engineering Management 2021, Volume 8, Issue 4,   Pages 477-479 doi: 10.1007/s42524-021-0175-z

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Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 515-526 doi: 10.1007/s11709-017-0428-4

Abstract: A new Independent Cover Meshless Particle (ICMP) method is proposed for the analysis of complex geotechnicalsimple formulation and a low computational cost, and is easy for the numerical analysis and modeling of complex

Keywords： meshless method     particle method     independent cover     CTM     geotechnical engineering    

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Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 479-484 doi: 10.1007/s11465-006-0064-5

Abstract: Applying directed complex network to model the main structure of a product family, according to in-degree

Keywords： complex network     industrial     component     analytic expression     forecast    

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Cationic organobismuth complex as an effective catalyst for conversion of CO

Xiaowen ZHANG, Weili DAI, Shuangfeng YIN, Shenglian LUO, Chak-Tong AU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 32-37 doi: 10.1007/s11783-008-0068-y

Abstract: valuable chemicals, and to exploit new applications of organobismuth compounds, cationic organobismuth complexcarbonates could reach 100%, and the maximum turnover frequency was up to 10740 h at 120°C and 3 MPa CO pressure

Keywords： cationic organobismuth complex     terminal epoxide     carbon dioxide     coupling     cyclic carbonate    

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Combustion instability detection using the wavelet detail of pressure fluctuations

JI Junjie, LUO Yonghao

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 116-120 doi: 10.1007/s11708-008-0019-0

Abstract: A combustion instability detection method that uses the wavelet detail of combustion pressure fluctuationsTo confirm this method, combustion pressure fluctuations in a stoker boiler are recorded at stable andunstable combustion with a pressure transducer.It shows that the wavelet approximation indicates the general pressure change in the furnace, and the

Keywords： comparison     wavelet approximation     pressure transducer     general pressure     consistent    

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Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation to

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 697-699 doi: 10.1007/s11708-022-0843-7

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Redox reactions of iron and manganese oxides in complex systems

Jianzhi Huang, Huichun Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1255-8

Abstract: . • Oxidative reactions of Mn- and Fe-oxides in complex systems were reviewed. • Reductive reaction ofFe(II)/iron oxides in complex systems was examined. • Future research on examining the redox reactivityin complex systems was suggested.Due to experimental and analytical challenges associated with complex environments, there has been aTo bridge the gap between simple model systems and complex environmental systems, it is necessary to

Keywords： Iron oxides     manganese oxides     reduction     oxidation     complex systems     reaction kinetics and mechanisms    

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Title Author Date Type Operation

Cementing technology of gas wells with complex pressure on Northwest Sichuan

Zhou Shiming,Zeng Yijin

Journal Article

Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway

Journal Article

Fundamentals and Processes of Fluid Pressure Forming Technology for Complex Thin-Walled Components

Shijian Yuan

Journal Article

Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Journal Article

Spatial Discrimination of Complex, Low-Relief Quaternary Siliciclastic Strata Using Airborne Lidar and

Jeffrey G. Paine,Edward W. Collins,Lucie Costard

Journal Article

GID complex regulates the differentiation of neural stem cells by destabilizing TET2

Journal Article

Footholds optimization for legged robots walking on complex terrain

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Special issue: Reliability management of complex system

Journal Article

Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Journal Article

Forecast method for used number of parts and components based on complex network

LIU Fu-yun, QI Guo-ning, YANG Qing-hai

Journal Article

Cationic organobismuth complex as an effective catalyst for conversion of CO

Xiaowen ZHANG, Weili DAI, Shuangfeng YIN, Shenglian LUO, Chak-Tong AU

Journal Article

Combustion instability detection using the wavelet detail of pressure fluctuations

JI Junjie, LUO Yonghao

Journal Article

Amino acid promoted hydrogen battery system using Mn-pincer complex for reversible CO hydrogenation to

Journal Article

Redox reactions of iron and manganese oxides in complex systems

Jianzhi Huang, Huichun Zhang

Journal Article