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Driving Factors of Green Mining in Coal Mining Enterprises in China

Lin-xiu Wang,Mu-xi Yu,Si-jia Wang

Frontiers of Engineering Management 2015, Volume 2, Issue 3,   Pages 211-223 doi: 10.15302/J-FEM-2015043

Abstract: This study constructs a Green Mining model based on identification and analysis of the four key drivingTwelve research propositions are raised and empirically tested by using Structural Equation Model.

Keywords： Green Mining     driving factor     Structural Equation Model     empirical study    

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Anaerobic digestion of sludge by different pretreatments: Changes of amino acids and microbial community

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1458-7

Abstract:

•Tryptophan protein, and aromatic protein I/II were the key identified proteins.

Keywords： Sludge pretreatments     Dissolved organic nitrogen     Proteins     Amino acids     Structural equation model     Metagenomic    

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Cyclic stress-strain behavior of structural steel with yield-strength up to 460 N/mm

Yiyi CHEN,Wei SUN,Tak-Ming CHAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 178-186 doi: 10.1007/s11709-014-0245-y

Abstract: This paper presents a constitutive model based on Ramberg-Osgood equation to describe the hysteresismaterial behavior of structural carbon steel with nominal yield strength between 235 to 420 N/mm .The proposed model was calibrated against a series of cyclic material tests with strain amplitude varyingThe calibrated Ramberg-Osgood model revealed excellent agreement with the experimental results and capturedThe proposed constitutive model was also adopted in conjunction with the combined kinematic/isotropic

Keywords： constitutive model     finite element analysis     hysteresis curve     Ramberg-Osgood equation    

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Comparison of the performance of traditional advection-dispersion equation and mobile-immobile model

Haizhu HU,Xiaomin MAO

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 3,   Pages 241-248 doi: 10.15302/J-FASE-2016108

Abstract: The traditional advection-dispersion equation (ADE) and the mobile-immobile model (MIM) are widely used

Keywords： solute transport     advection dispersion equation (ADE)     mobile-immobile model (MIM)     conservative solute    

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Being good or being known: International reputation of high-speed railway enterprises

Frontiers of Engineering Management   Pages 455-466 doi: 10.1007/s42524-023-0250-8

Abstract: The researchers identified five factors and proposed a hypothetical path model based on a comprehensiveThe path model was validated based on partial least-squares structural equation modeling.findings of this study contribute to existing international reputation theories using the theoretical model

Keywords： high-speed railway     international reputation     being good     being known     structural equation modeling    

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Optimal design of extractive dividing-wall column using an efficient equation-oriented approach

Yingjie Ma, Nan Zhang, Jie Li, Cuiwen Cao

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 72-89 doi: 10.1007/s11705-020-1977-y

Abstract: The extractive dividing-wall column (EDWC) is one of the most efficient technologies for separation of azeotropic or close boiling-point mixtures, but its design is fairly challenging. In this paper we extend the hybrid feasible path optimisation algorithm (Ma Y, McLaughlan M, Zhang N, Li J. Computers & Chemical Engineering, 2020, 143: 107058) for such optimal design. The tolerances-relaxation integration method is refined to allow for long enough integration time that can ensure the solution of the pseudo-transient continuation simulation close to the steady state before the required tolerance is used. To ensure the gradient and Jacobian information available for optimisation, we allow a relaxed tolerance for the simulation in the sensitivity analysis mode when the simulation diverges under small tolerance. In addition, valid lower bounds on purity of the recycled entrainer and the vapour flow rate in column sections are imposed to improve computational efficiency. The computational results demonstrate that the extended hybrid algorithm can achieve better design of the EDWC compared to those in literature. The energy consumption can be reduced by more than 20% compared with existing literature report. In addition, the optimal design of the heat pump assisted EDWC is achieved using the improved hybrid algorithm for the first time.

Keywords： design     extractive dividing-wall column     equation-oriented optimisation     pseudo-transient continuation model    

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Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

Yang Peizhi,Gu Xiaosong

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 26-29

Abstract: , so zero equation turbulence model is used for simulating airflow in train compartment.In this paper, zero equation turbulence model and k - ε turbulence model were applied for numericalcomparison, the results come from these two. methods are inosculated very well, and the time cost by zero equationturbulence model is very little.So zero equation turbulence model has the merit of simpleness and quickness, it will provide a simple

Keywords： air-conditioning     zero equation turbulence model     numerical simulation     train    

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Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 480-488 doi: 10.1007/s11708-009-0043-8

Abstract: A model validation technique in structural dynamics and its application in aero-engine development isThe concept and the approaches of model validation based on reference data supplied from experimentalA satisfactory agreement with both approaches is achieved, and finally, a strategy of model validationfor the whole engine model is introduced.

Keywords： model validation     aero-engine     structural dynamics    

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Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 58-70 doi: 10.1007/s11465-014-0289-7

Abstract:

In the current paper, a simplified model of Tower Cranes has been presented in order to investigateand analyze the nonlinear differential equation governing on the presented system in three differentof study such as fluid mechanics, chemical engineering, etc. make AGM be a powerful and useful role model

Keywords： Algebraic Method (AGM)     tower crane     oscillating system     angular frequency    

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Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1403-1417 doi: 10.1007/s11709-020-0666-8

Abstract: Research on the quality of data in a structural calculation document (SCD) is lacking, although the SCDThe decision tree model was built using the content elements stored in the SCD, design companies, bridgeThe inverse-calculation method was applied to extract the weight factors from the decision tree model

Keywords： structural calculation document     bridge structure     XML Schema matching     weight factor     data mining     decisiontree model    

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A hybrid deep learning model for robust prediction of the dimensional accuracy in precision milling ofthin-walled structural components

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0688-0

Abstract: In this study, we develop a predictive model of the dimensional accuracy for precision milling of thin-walledstructural components.The aim is to classify three typical features of a structural component—squares, slots, and holes—intoBased on the experimental data collected during the milling experiments, the proposed model proved toThe average classification accuracy obtained using the proposed deep learning model was 9.55% higher

Keywords： precision milling     dimensional accuracy     cutting force     convolutional neural networks     coherent noise    

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Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1331-1348 doi: 10.1007/s11709-020-0686-4

Abstract: Regression surfaces between the structural parameters and structural output features, represented byAn inverse iterative process is then applied to identify the structural parameters by matching the experimentalboundary coefficients and physical parameters of the Euler-Bernoulli beam as well as a highway bridge modelthe proposed method will have practical applications in the identification and analysis of restored structural

Keywords： structural model validation     eigenvalue problem     response surface     inverse problems    

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Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 425-437 doi: 10.1007/s11709-017-0427-5

Abstract: In the second step, having the structural destructions of the first step in view, a pushdown analysisFinally, the annual probability of structural collapse under simultaneous earthquake and blast loads

Keywords： gas blast     pushdown analysis     progressive collapse     annual probability of structural collapse     3D model of    

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Numerical Simulation of the Hyperbolic Mild Slope Equation

Tang Jun,Shen Yongming,Qiu Dahong

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 70-74

Abstract:

The hyperbolic mild slope equation has been widely used as an effectivemathematic model to simulate the propagation of water waves in coastal zones.and two examples have been used to validate the numerical model.The numerical results show that the numerical model used in the paper can be effectively used in thenumerical simulation of the hyperbolic mild slope equation.

Keywords： wave model     hyperbolic mild slope equation     numerical simulation    

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The Optimization of Grey Model GM (1,1)

Luo Dang,Liu Sifeng,Dang Yaoguo

Strategic Study of CAE 2003, Volume 5, Issue 8,   Pages 50-53

Abstract:

This paper analyzes the reason that grey model GM (1,1) often makes errors in simulated data.1,1) about the simulation, it can be concluded that the structure method of background value in grey modelGM (1,1) has an important influence on the prediction and adaptability of the model.The optimum background value makes grey model GM (1,1) have better fitting and forecasting precision.

Keywords： grey model GM (1     1)     winterization equation     background value    

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Title Author Date Type Operation

Driving Factors of Green Mining in Coal Mining Enterprises in China

Lin-xiu Wang,Mu-xi Yu,Si-jia Wang

Journal Article

Anaerobic digestion of sludge by different pretreatments: Changes of amino acids and microbial community

Journal Article

Cyclic stress-strain behavior of structural steel with yield-strength up to 460 N/mm

Yiyi CHEN,Wei SUN,Tak-Ming CHAN

Journal Article

Comparison of the performance of traditional advection-dispersion equation and mobile-immobile model

Haizhu HU,Xiaomin MAO

Journal Article

Being good or being known: International reputation of high-speed railway enterprises

Journal Article

Optimal design of extractive dividing-wall column using an efficient equation-oriented approach

Yingjie Ma, Nan Zhang, Jie Li, Cuiwen Cao

Journal Article

Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

Yang Peizhi,Gu Xiaosong

Journal Article

Model validation for structural dynamics in the aero-engine design process

Chaoping ZANG, D. J. EWINS,

Journal Article

Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Journal Article

Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Journal Article

A hybrid deep learning model for robust prediction of the dimensional accuracy in precision milling ofthin-walled structural components

Journal Article

Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Journal Article

Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Journal Article

Numerical Simulation of the Hyperbolic Mild Slope Equation

Tang Jun,Shen Yongming,Qiu Dahong

Journal Article

The Optimization of Grey Model GM (1,1)

Luo Dang,Liu Sifeng,Dang Yaoguo

Journal Article