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Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic?

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1493-4

Abstract:

• A two-compartment model is able to quantify the effect of nano-TiO

Keywords： Algae     C. dubia     Lead     Nano-TiO2     Synergistic toxicity     Two-compartment toxicokinetic-toxicodynamicmodel    

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State of the Art of Compartment Fire Modeling

Zheng Xin,Yuan Hongyong

Strategic Study of CAE 2004, Volume 6, Issue 3,   Pages 68-74

Abstract: the reader with a brief discussion on the mathematical modeling techniques, currently available for compartmentThe relevant underlying physical assumptions are presented first and the conventional model performance

Keywords： compartment     field model     zone model     network model     FZN (field     zone and network) model     empirical model    

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Modeling Study of Steel Elements Submitted to Real Compartment Fires

Shi Congling,Huo Ran,Li Yuanzhou,Peng Wei,Yao Bin

Strategic Study of CAE 2003, Volume 5, Issue 12,   Pages 66-72

Abstract:

A simple model was built to describe the well-stratified compartment fire, by which the temperaturePool fire experiments were carried out in a full-scale compartment.

Keywords： real fire environment     two-zone model     temperature of steel element     plume models    

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Numerical Simulation Research of Air Organization in Air Conditioned Hard-sleeper Compartment

Zhang Dengchun

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 66-72

Abstract:

The air organization research is the basis of thermal environment control in air-conditioned compartmentBy k-ε turbulence model, the air fluid flow and heat transfer in air-conditioned hard-sleepercompartment are simulated numerically.A basis is given for the optimized design of air organization in the air-conditioned passenger compartment

Keywords： hard-sleeper compartment     turbulence model     air organization     numerical simulation    

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Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 53-59 doi: 10.1007/s11465-009-0006-0

Abstract: This paper presents an extended two-fluid model based on the Navier-Stokes equations and the standardturbulence model, to simulate the three-dimensional air-water bubbly flow in turbo machinery.The discrete equations are solved using a developed two-phase semi-implicit method for pressure-linkedSimulation is then carried out for the pure liquid flow and air-water two-phase flow with the inlet gasComparison with experimental results shows the reliability and commonality of the numerical model.

Keywords： two-fluid model     multiphase rotodynamic pump     SIMPLEC algorithm     numerical simulation    

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Modified landfill gas generation rate model of first-order kinetics and two-stage reaction

Jiajun CHEN , Hao WANG , Na ZHANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 313-319 doi: 10.1007/s11783-009-0025-4

Abstract: The first-order kinetics and two-stage reaction (FKTSR) model of the LFG generation rate includes mechanismsof the nutrient balance for biochemical reaction in two main stages.The model calibration was then calculated by using the experimental data.The results suggested that the new model was in line with the experimental data.The new model is better able to explain the mechanisms involved in LFG generation.

Keywords： landfill gas (LFG)     generation rate model     first-order kinetics     two-stage reaction     outflow function    

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Sustainability performance analysis of environment innovation systems using a two-stage network DEA model

Frontiers of Engineering Management   Pages 425-438 doi: 10.1007/s42524-022-0205-5

Abstract: A two-stage data envelopment analysis (DEA) model is developed in this study to analyze the efficiency

Keywords： envelopment analysis     environmental efficiency     environmental innovation system     shared resources     two-stage    

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Developing a new model for simultaneous scheduling of two grand projects based on game theory and solvingthe model with Benders decomposition

Loghman PIRI, Vahidreza GHEZAVATI, Ashkan HAFEZALKOTOB

Frontiers of Engineering Management 2022, Volume 9, Issue 1,   Pages 117-134 doi: 10.1007/s42524-020-0115-3

Abstract: In this study, a mixed-integer programming model consisting of game theory and project scheduling isIn this model, two contractors in successive periods are entered into a step-by-step competition by theThis model can act dynamically in all circumstances during project implementation.Then, the results of our model are compared with those of the conventional models.The projects’ duration in our model is reduced by 22.2%.

Keywords： project scheduling     resource leveling between projects     constrained resources     game theory     Benders decomposition    

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A two-dimensional numerical model for eutrophication in Baiyangdian Lake

Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 815-824 doi: 10.1007/s11783-011-0383-6

Abstract: An eutrophication eco-dynamics model including the effects of reed resistance on flow was coupled withThe model simulates water quality constituents associated with eutrophication in the lake, includingThe values calculated by the calibrated model agree well with field data, including ammonia nitrogen,Deviations between model-simulated and observed values are discussed.As an ideal tool for environmental management of the lake, this model can be used to predict its water

Keywords： eutrophication     eco-dynamics     hydrodynamics     improved Water Quality Analysis Simulation Program (WASP) model    

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Numerical and Experimental Study on Ventilation Panel Models in a Subway Passenger Compartment Article

Yu Tao, Mingzhi Yang, Bosen Qian, Fan Wu, Tiantian Wang

Engineering 2019, Volume 5, Issue 2,   Pages 329-336 doi: 10.1016/j.eng.2018.12.007

Abstract: This study aims to improve the computational efficiency of numerical simulation by adapting two simplifiedmodels—the porous media model and the porous jump face model—to study the internal flowfield of a railroad car compartment.Based on the results, the porous media model has a better agreement with the original model and withThe difference between the numerical results of the original model and those of the porous media model

Keywords： Numerical simulation     Experiment     Ventilation panel model     Subway    

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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:

It will cost much time for numerical simulation of air distribution in train compartment using k -ε turbulence model, so zero equation turbulence model is used for simulating airflow in traincompartment.In this paper, zero equation turbulence model and k - ε turbulence model were applied for numericalBy comparison, the results come from these two. methods are inosculated very well, and the time cost

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

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The model and process simulation of multi-effect two stage evaporation system with solid separation

Li Ling, Ruan Qi

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 54-60

Abstract:

A mathematical model of conventional design for the multi-effect twoThe equilibrium was correlated to equation and the model could be solved with computer easily.correlative block-smatrix in matrix equation, matrix equation could be used to describe the multi-effect twoThe model was solved by combining matrix method with iteration method.

Keywords： solid separation     mathematical model of multi-effect two stage evaporation     condensed water flash    

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Application of a weakly compressible smoothed particle hydrodynamics multi-phase model to non-cohesive

Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 412-424 doi: 10.1007/s11709-017-0432-8

Abstract:

The subject of present study is the application of mesh free Lagrangian two-dimensional non-cohesivesediment transport model applied to a two-phase flow over an initially trapezoidal-shaped sedimentTo simulate the movement of sediment particles, the model considers a powerful two-part technique; whenIn the present model, the interactions between different phases are calculated automatically, even withbetween computational results and experimental data shows that the model generally predicts well the

Keywords： WCSPH method     non-cohesive sediment transport     rheological model     two-part technique     two-phase dam break    

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An efficient two-stage approach for structural damage detection using meta-heuristic algorithms and groupmethod of data handling surrogate model

Hamed FATHNEJAT, Behrouz AHMADI-NEDUSHAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 907-929 doi: 10.1007/s11709-020-0628-1

Abstract: In this study, the performance of an efficient two-stage methodology which is applied in a damage detectionsystem using a surrogate model of the structure has been investigated.Finally, in order to achieve the most generalized neural network as a surrogate model, GMDH performanceMoreover, the GMDH model is also more efficient and mimics the behavior of the structure slightly betterthan CFNN model.

Keywords： two-stage method     modal strain energy     surrogate model     GMDH     optimization damage detection    

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Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters

Han-peng Zhang,Yi Liao,Hui-xia Luo

Frontiers of Engineering Management 2014, Volume 1, Issue 3,   Pages 318-321 doi: 10.15302/J-FEM-2014042

Abstract: The goal of this research is to develop a two-echelon emergency resource distribution model under conditionmaximize relief time as criterion of relief performance, we developed response strategies and simulation model

Keywords： simulation     secondary disasters     two-echelon vehicle routing model    

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Title Author Date Type Operation

Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic?

Journal Article

State of the Art of Compartment Fire Modeling

Zheng Xin,Yuan Hongyong

Journal Article

Modeling Study of Steel Elements Submitted to Real Compartment Fires

Shi Congling,Huo Ran,Li Yuanzhou,Peng Wei,Yao Bin

Journal Article

Numerical Simulation Research of Air Organization in Air Conditioned Hard-sleeper Compartment

Zhang Dengchun

Journal Article

Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Journal Article

Modified landfill gas generation rate model of first-order kinetics and two-stage reaction

Jiajun CHEN , Hao WANG , Na ZHANG ,

Journal Article

Sustainability performance analysis of environment innovation systems using a two-stage network DEA model

Journal Article

Developing a new model for simultaneous scheduling of two grand projects based on game theory and solvingthe model with Benders decomposition

Loghman PIRI, Vahidreza GHEZAVATI, Ashkan HAFEZALKOTOB

Journal Article

A two-dimensional numerical model for eutrophication in Baiyangdian Lake

Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN

Journal Article

Numerical and Experimental Study on Ventilation Panel Models in a Subway Passenger Compartment

Yu Tao, Mingzhi Yang, Bosen Qian, Fan Wu, Tiantian Wang

Journal Article

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

Yang Peizhi,Gu Xiaosong

Journal Article

The model and process simulation of multi-effect two stage evaporation system with solid separation

Li Ling, Ruan Qi

Journal Article

Application of a weakly compressible smoothed particle hydrodynamics multi-phase model to non-cohesive

Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH

Journal Article

An efficient two-stage approach for structural damage detection using meta-heuristic algorithms and groupmethod of data handling surrogate model

Hamed FATHNEJAT, Behrouz AHMADI-NEDUSHAN

Journal Article

Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters

Han-peng Zhang,Yi Liao,Hui-xia Luo

Journal Article