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Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 402-411 doi: 10.1007/s42524-020-0098-0

Abstract: In this work, a three-dimensional system and a system model of hydropower EPC project management synergyFurthermore, the evaluation index system and the degree of synergy model are established, and grey relationalanalysis is utilized to identify the key factors that affect the synergy degree.method for synergy degree evaluation, and propose corresponding promotion strategies.restriction on the further improvement of the synergy degree of EPC project management.

Keywords： hydropower project     EPC mode     synergy degree model     grey relational analysis    

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Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1338-1349 doi: 10.1007/s17009-019-0558-2

Abstract: energy absorption characteristics of concrete and the efficacy of fiber hybridization in producing synergyFurthermore, synergy associated with the combination of fibers at different stages of deflection of the

Keywords： hybrid fiber-reinforced concrete     synergy     toughness     steel fibers     polypropylene fibers    

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Numerical analysis on heat transfer enhancement by longitudinal vortex based on field synergy principle

WU Junmei, TAO Wenquan

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 365-369 doi: 10.1007/s11708-007-0055-1

Abstract: The numerical results are analyzed on the basis of the field synergy principle to explain the inherent

Keywords： computational     inherent mechanism     staggered     decrease     transfer surface    

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Study on the Universality of the Normal Cloud Model

Li Deyi,Liu Changyu

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 28-34

Abstract: distribution but also make the normal membership function be the expectation of the random membership degreeIn this paper, the universality of the normal cloud model is proved,which is more superior and easier

Keywords： normal distribution function     membership degree     normal cloud model     granularity     universality    

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Enhanced synergy between Cu

Jingwei Zhang, Lingxin Kong, Yao Chen, Huijiang Huang, Huanhuan Zhang, Yaqi Yao, Yuxi Xu, Yan Xu, Shengping Wang, Xinbin Ma, Yujun Zhao

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 666-678 doi: 10.1007/s11705-020-1982-1

Abstract: As the substitution of common noble catalysts in the hydrogenation of carboxylic acid, a highly effective Cu-Ni/SiO catalyst was prepared by a novel stepwise ammonia evaporation method. Its performance in the gas-phase hydrogenation of acetic acid was further examined. With the introduction of Ni dopant, more stable Cu sites, which can adsorb more acetic acid, were formed due to the electron transfer from Cu to Ni. This makes more Cu sites available for hydrogen adsorption, which was suggested as the rate-determining step in acetic acid hydrogenation. A conversion of 99.6% was successfully achieved on this new Cu/SiO -0.5Ni catalyst, accompanied by the ethanol selectivity of 90%. The incorporation of nickel between copper nanoparticles enhances the synergistic effect between Cu and Cu . It also helps mitigate the aggregation of copper nanoparticles due to the Ostwald ripening effect induced by acetic acid and enhance the stability of copper catalyst in the conversion of carboxylic acid.

Keywords： carboxylic acid     hydrogenation     copper     nickel     stability    

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An Evaluation Model for the Coordinated Development of a Circular Economy in China and Its Application

Ji-liang Zheng,Chen Zheng,Pan Chen,Ching Yuan Luk

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 364-371 doi: 10.15302/J-FEM-2014053

Abstract: of order parameter, this study uses economic and environmental subsystems to establish an evaluation modelIt also shows that the outside coordinated degree of EIIs is lower than the inside coordinated degree

Keywords： order parameter     coordinated degree evaluation     energy-intensive industry     circular economy    

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Homoharringtonine synergy with oridonin in treatment of t(8; 21) acute myeloid leukemia

Weina Zhang, Ying Lu, Tao Zhen, Xinjie Chen, Ming Zhang, Ping Liu, Xiangqin Weng, Bing Chen, Yueying Wang

Frontiers of Medicine 2019, Volume 13, Issue 3,   Pages 388-397 doi: 10.1007/s11684-018-0624-1

Abstract: synergistic effects and mechanism of oridonin combined with HHT in t(8; 21) AML cell line and mouse model

Keywords： AML1–ETO     c-KIT     homoharringtonine     oridonin     t(8     21) AML     synergistic effect    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: presents a theorem showing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 233-241 doi: 10.1007/s11465-014-0312-z

Abstract:

In this paper, a typical 3-degree of freedom (3-DOF) translational parallel kinematic machine

Keywords： 3-DOF translational PKM     inverse kinematics     stiffness modeling     translational stiffness    

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Water resource conservation promotes synergy between economy and environment in China’s northern drylands

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1462-y

Abstract:

•Considering evenness provides a more accurate assessment of sustainable development.

Keywords： Water conservation     Environmental protection     Industry transformation     Evenness     Sustainable development     Dryland    

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A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 344-353 doi: 10.1007/s11465-014-0320-z

Abstract:

This paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (

Keywords： spherical mechanisms     instantaneous poles     Aronhold-Kennedy theorem     great circles     pencil of meridian    

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investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based on field synergy

TAO Wenquan, WU Junmei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 71-78 doi: 10.1007/s11708-008-0001-x

Abstract: The numerical results were analyzed based on the field synergy principle.inherent mechanism of the heat transfer enhancement by longitudinal vortex can be explained by the field synergyThe longitudinal vortex improves the field synergy of the large downstream region of longitudinal vortexgenerator (LVG) and the region near (LVG); however, transverse vortex only improves the synergy of theThe synergy angle decreases with the increase of Reynolds number for the channel with LVG to differ from

Keywords： inherent mechanism     integral     surface     rectanglar     longitudinal    

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Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 120-129 doi: 10.1007/s11465-014-0300-3

Abstract:

In this paper, error modeling and analysis of a typical 3-degree of freedom translational Parallel

Keywords： translational Parallel Kinematic Machine     error modeling     global error transformation index    

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Regional seismic-damage prediction of buildings under mainshock–aftershock sequence

Xinzheng LU, Qingle CHENG, Zhen XU, Chen XIONG

Frontiers of Engineering Management 2021, Volume 8, Issue 1,   Pages 122-134 doi: 10.1007/s42524-019-0072-x

Abstract: Strong aftershocks generally occur following a significant earthquake. Aftershocks further damage buildings weakened by mainshocks. Thus, the accurate and efficient prediction of aftershock-induced damage to buildings on a regional scale is crucial for decision making for post-earthquake rescue and emergency response. A framework to predict regional seismic damage of buildings under a mainshock–aftershock (MS–AS) sequence is proposed in this study based on city-scale nonlinear time-history analysis (THA). Specifically, an MS–AS sequence-generation method is proposed to generate a potential MS–AS sequence that can account for the amplification, spectrum, duration, magnitude, and site condition of a target area. Moreover, city-scale nonlinear THA is adopted to predict building seismic damage subjected to MS–AS sequences. The accuracy and reliability of city-scale nonlinear THA for an MS–AS sequence are validated by as-recorded seismic responses of buildings and simulation results in published literature. The town of Longtoushan, which was damaged during the Ludian earthquake, is used as a case study to illustrate the detailed procedure and advantages of the proposed framework. The primary conclusions are as follows. (1) Regional seismic damage of buildings under an MS–AS sequence can be predicted reasonably and accurately by city-scale nonlinear THA. (2) An MS–AS sequence can be generated reasonably by the proposed MS–AS sequence-generation method. (3) Regional seismic damage of buildings under different MS–AS scenarios can be provided efficiently by the proposed framework, which in turn can provide a useful reference for earthquake emergency response and scientific decision making for earthquake disaster relief.

Keywords： damage prediction     city-scale nonlinear time-history analysis     mainshock–aftershock sequence     multiple degree-of-freedom(MDOF) model     2014 Ludian earthquake    

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Study on high efficient and clean utilization of coal

Chen Yinying, Wang Shujuan, Chen Changhe, Xu Xuchang

Strategic Study of CAE 2011, Volume 13, Issue 6,   Pages 51-56

Abstract: China were analyzed, and an index system for efficient and clean utilization of coal, including clean degree, eco-friendly degree, and low-carbon degree was developed.

Keywords： clean coal power generation     clean degree     energy sustainable development comprehensive index     eco-friendlydegree     low-carbon degree    

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Title Author Date Type Operation

Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Journal Article

Effect of fiber hybridization on energy absorption and synergy in concrete

Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI

Journal Article

Numerical analysis on heat transfer enhancement by longitudinal vortex based on field synergy principle

WU Junmei, TAO Wenquan

Journal Article

Study on the Universality of the Normal Cloud Model

Li Deyi,Liu Changyu

Journal Article

Enhanced synergy between Cu

Jingwei Zhang, Lingxin Kong, Yao Chen, Huijiang Huang, Huanhuan Zhang, Yaqi Yao, Yuxi Xu, Yan Xu, Shengping Wang, Xinbin Ma, Yujun Zhao

Journal Article

An Evaluation Model for the Coordinated Development of a Circular Economy in China and Its Application

Ji-liang Zheng,Chen Zheng,Pan Chen,Ching Yuan Luk

Journal Article

Homoharringtonine synergy with oridonin in treatment of t(8; 21) acute myeloid leukemia

Weina Zhang, Ying Lu, Tao Zhen, Xinjie Chen, Ming Zhang, Ping Liu, Xiangqin Weng, Bing Chen, Yueying Wang

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Journal Article

Water resource conservation promotes synergy between economy and environment in China’s northern drylands

Journal Article

A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

investigation and analysis of heat transfer enhancement in channel by longitudinal vortex based on field synergy

TAO Wenquan, WU Junmei

Journal Article

Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Journal Article

Regional seismic-damage prediction of buildings under mainshock–aftershock sequence

Xinzheng LU, Qingle CHENG, Zhen XU, Chen XIONG

Journal Article

Study on high efficient and clean utilization of coal

Chen Yinying, Wang Shujuan, Chen Changhe, Xu Xuchang

Journal Article