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Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear

A. ARAB, Ma. R. BANAN, Mo. R. BANAN, S. FARHADI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 3-15 doi: 10.1007/s11709-017-0418-6

Abstract: Seismic design of RC structures requires estimation of structural member behavioral measures as functionsof design parameters.OpenSEES numerical simulations modeling of plastic hinge hysteretic behavior of RC shear walls and estimationof empirical relations among wall hysteretic indices and design parameters are presented.end-element design parameters.

Keywords： RC wall hysteretic measures     RC wall design parameters     empirical relations     numerical simulations     RC rectangular    

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Dynamic characteristics and improved MPPT control of PV generator

Houda BRAHMI, Rachid DHIFAOUI

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 342-350 doi: 10.1007/s11708-013-0242-1

Abstract: This paper presents a mathematical model of photovoltaic (PV) module and gives a strategy to calculate online the maximum power point (MPP). The variation of series and shunt resistor are taken into account in the model and are dynamically identified using the Newton-Raphson algorithm. The effectiveness of the proposed model is verified by laboratory experiments obtained by implementing the model on the dSPACE DS1104 board.

Keywords： modeling of photovoltaic (PV) generator     maximum power point tracking (MPPT)     estimation parameters     real    

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Runoff Modeling in Ungauged Catchments Using Machine Learning Algorithm-Based Model Parameters Regionalization Article

Houfa Wu,Jianyun Zhang,Zhenxin Bao,Guoqing Wang,Wensheng Wang,Yanqing Yang,Jie Wang

Engineering 2023, Volume 28, Issue 9,   Pages 93-104 doi: 10.1016/j.eng.2021.12.014

Abstract:

Model parameters estimation is a pivotal issue for runoff modeling inThe nonlinear relationship between model parameters and catchment descriptors is a major obstacle forThe quantitative relationships between the parameters of the SWAT model and the catchment descriptorsThen, the parameters in each target catchment were estimated by the constructed regression models based

Keywords： Parameters estimation     Ungauged catchments     Regionalization scheme     Machine learning algorithms     Soil and    

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Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 47-56 doi: 10.1007/s11708-011-0159-5

Abstract: results proves that the swarm tuned artificial neural network (ANN) estimator is best suited for accurate estimation

Keywords： artificial intelligence     power distribution control     state estimation    

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: pipeline system effectively and analyze its vibration characteristics, the mechanical characteristic parametersThe procedure of identifying such parameters was described based on the measured natural frequenciesA case study was performed, and the mechanical parameters of the hoop were identified using the proposed

Keywords： inverse identification     pipeline hoop     frequency response function     mechanical parameters     preload    

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An operating state estimation model for integrated energy systems based on distributed solution

Dengji ZHOU, Shixi MA, Dawen HUANG, Huisheng ZHANG, Shilie WENG

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 801-816 doi: 10.1007/s11708-020-0687-y

Abstract: the mathematical model of the electricity-gas interconnected integrated energy system and its state estimationFinally, a distributed state estimation framework is formed by combining the synchronous alternatingdirection multiplier method to achieve an efficient estimation of the state of the integrated energymethod are only 0.0132% and 0.0864%, much lower than the estimation error by using the Lagrangian relaxationBesides, compared with the centralized estimation method, the proposed distributed method saves 5.42

Keywords： integrated energy system     state estimation     electricity-gas coupling energy system     nonlinear coupling     distributed    

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Impact of anthropogenic heat emissions on meteorological parameters and air quality in Beijing using

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1478-3

Abstract:

The Large scale Urban Consumption of energ Y model was updated and coupled with WRF.

Keywords： Anthropogenic heat emissions     LUCY     High-resolution     Meteorological parameters     Air quality    

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Bayes estimation of residual life by fusing multisource information

Qian ZHAO, Xiang JIA, Zhi-jun CHENG, Bo GUO

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 524-532 doi: 10.15302/J-FEM-2018034

Abstract:

Residual life estimation is essential for reliability engineering.Expert knowledge is used according to the maximum entropy method to determine the prior distributions of parametersThe Markov chain Monte Carlo is applied to obtain samples of the parameters and to estimate the residuallife of products due to the complexity of the joint ML function and the posterior distribution of parameterseffectiveness and practicability of the proposed method are validated by comparing it with residual life estimation

Keywords： residual life estimation     Bayes model     linear Wiener process    

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Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 167-171 doi: 10.1007/s11705-009-0006-y

Abstract: The thermal degradation behaviors of polycarbonate/polymethylphenylsilsesquioxane (FRPC) composites were investigated by thermogravimetric analysis (TGA) under isothermal conditions in nitrogen atmosphere. The isothermal kinetics equation was used to describe the thermal degradation process. The results showed that activation energy ( ), in the case of isothermal degradation, was a quick increasing function of conversion (α) for polycarbonate (PC) but was a strong and decreasing function of conversion for FRPC. Under the isothermal condition, the addition of polymethylphenylsilsesquioxane (PMPSQ) retardanted the thermal degradation and enhanced the thermal stability of PC during the early and middle stages of thermal degradation. It also indicated a possible existence of a difference in nucleation, nuclei growth, and gas diffusion mechanism in the thermal degradation process between PC and FRPC. Meanwhile, the addition of PMPSQ influenced the lifetime of PC, but the composite still met the demand in manufacturing and application.

Keywords： polycarbonate     polymethylphenylsilsesquioxane     thermal degradation kinetics     activation energy     lifetime    

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Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 517-521 doi: 10.1007/s11708-010-0004-2

Abstract: The effect of thermodynamic parameters (the pressure of primary fluid and secondary fluid) on the performanceThe boundary conditions were set according to the actual operating condition and the parameters of refrigerator

Keywords： refrigerator-ejector     FLUENT     thermodynamic parameters     entrainment ratio performance    

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Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 367-376 doi: 10.1007/s11465-017-0429-y

Abstract:

A new hierarchical parameter estimation method for doubly fed induction generator (DFIG) and driveFirstly, the parameters of the DFIG and the drive train are estimated locally under different types ofSecondly, a coordination estimation method is further applied to identify the parameters of the DFIGThe main benefit of the proposed scheme is the improved estimation accuracy.Estimation results confirm the applicability of the proposed estimation technique.

Keywords： wind turbine generator     DFIG     drive train system     hierarchical parameter estimation method     trajectory sensitivity    

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Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 673-683 doi: 10.1007/s11708-019-0630-2

Abstract: with different geometric shapes, but less research is conducted on the effects of critical geometric parameters

Keywords： parabolic collector     conical cavity receiver     critical geometric parameters     optical performance    

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Effect of preparation parameters on catalytic properties of Pt/graphite

LIU Zhengqian, MA Jun, ZHAO Lei

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 482-487 doi: 10.1007/s11783-007-0077-2

Abstract: Catalytic ozonation of aqueous solutions of oxalic acid was examined in the presence of graphite-supported platinum catalysts. The catalytic activity of graphite was significantly enhanced by loading platinum. The removal efficiency of oxalic acid was 3.0%, 47.6% and 99.3% for ozonation alone, graphite catalytic ozonation and Pt/graphite catalytic ozonation in 30 min under the experimental condition, respectively. The influence of support pretreatment, solvent, impregnation time, platinum loading amount and reduction temperature on the activity of Pt/graphite catalyst was investigated. The pretreatment of graphite support had no effect on activity improvement of Pt/graphite catalyst. Solvent and impregnation time also had no great effect on the activity. Platinum loading amount and reduction temperature influenced the catalyst activity significantly. The optimal catalytic performance of Pt/graphite was obtained when 1.0% platinum loading and 623 K of reduction temperature was adopted. The Pt/graphite catalyst was used for five times with no significant decrease in its activity and more than 90% oxalic acid removal was obtained.
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An energy consumption prediction approach of die casting machines driven by product parameters

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 868-886 doi: 10.1007/s11465-021-0656-0

Abstract: paper proposes an energy consumption prediction approach for die casting machines driven by product parametersconsumption prediction approach for die casting machines, involving product, die, equipment, and process parameters

Keywords： die casting machine     energy consumption prediction     product parameters    

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The influence of manufacturing parameters and adding support layer on the properties of Zirfon

Li XU,Yue YU,Wei LI,Yan YOU,Wei XU,Shaoxing ZHANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 295-305 doi: 10.1007/s11705-014-1433-y

Abstract: The influence of manufacturing parameters on its properties was investigated, and the results show thatthe manufacturing parameters affect the ionic resistance and maximum pore size significantly.

Keywords： separator     alkaline water electrolysis     manufacturing parameters     support layer    

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Title Author Date Type Operation

Estimation of relations among hysteretic response measures and design parameters for RC rectangular shear

A. ARAB, Ma. R. BANAN, Mo. R. BANAN, S. FARHADI

Journal Article

Dynamic characteristics and improved MPPT control of PV generator

Houda BRAHMI, Rachid DHIFAOUI

Journal Article

Runoff Modeling in Ungauged Catchments Using Machine Learning Algorithm-Based Model Parameters Regionalization

Houfa Wu,Jianyun Zhang,Zhenxin Bao,Guoqing Wang,Wensheng Wang,Yanqing Yang,Jie Wang

Journal Article

Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Journal Article

Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Journal Article

An operating state estimation model for integrated energy systems based on distributed solution

Dengji ZHOU, Shixi MA, Dawen HUANG, Huisheng ZHANG, Shilie WENG

Journal Article

Impact of anthropogenic heat emissions on meteorological parameters and air quality in Beijing using

Journal Article

Bayes estimation of residual life by fusing multisource information

Qian ZHAO, Xiang JIA, Zhi-jun CHENG, Bo GUO

Journal Article

Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Journal Article

Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Journal Article

Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator

Xueping PAN, Ping JU, Feng WU, Yuqing JIN

Journal Article

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Journal Article

Effect of preparation parameters on catalytic properties of Pt/graphite

LIU Zhengqian, MA Jun, ZHAO Lei

Journal Article

An energy consumption prediction approach of die casting machines driven by product parameters

Journal Article

The influence of manufacturing parameters and adding support layer on the properties of Zirfon

Li XU,Yue YU,Wei LI,Yan YOU,Wei XU,Shaoxing ZHANG

Journal Article