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Improvement of impact resistance of plain-woven composite by embedding superelastic shape memory alloy wires

Xiaojun GU, Xiuzhong SU, Jun WANG, Yingjie XU, Jihong ZHU, Weihong ZHANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 547-557 doi: 10.1007/s11465-020-0595-1

Abstract: Drop-weight impact tests are conducted on composite specimens with and without SMA wires to evaluateFE simulations of the drop-weight impact tests are performed to reveal the superelastic deformation and

Keywords： carbon fiber reinforced polymer composite     shape memory alloy wire     impact resistance     drop-weight test    

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Design of a shaking table test box for a subway station structure in soft soil

YANG Linde, ZHENG Yonglai, ZHANG Dongliang, JI Qianqian, YANG Chao

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 194-197 doi: 10.1007/s11709-007-0022-2

Abstract: A reasonable choice of structure of a model box is significant for a shaking table test to be successfulA model box has been designed for the shaking table test of a subway station structure in the soft soilThe structure is strong enough to avoid being demolished by shaking during a test.The contact conditions between the model soil and box are clear to help the data gained from the testThe total weight of the model soil and box is less than the bearing capacity of the shaking table apparatus

Keywords： geotechnical engineering     numerical analysis     weight     dynamic analysis     Shanghai    

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CFD evaluation of pressure drop across a 3-D filter housing for industrial gas turbine plants

Fidelis I. ABAM,Samuel O. EFFIOM,Olayinka S. OHUNAKIN

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 192-202 doi: 10.1007/s11708-016-0406-x

Abstract: This paper investigated the flow distribution and total pressure drop across a designed 3-D filter housingThe results obtained indicated an acceptable total pressure drop of 7.2% for the entire filter housing

Keywords： computational fluid dynamics (CFD)     pressure drop     flow distribution     filter housing     gas turbine    

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A biofilter model for simultaneous simulation of toluene removal and bed pressure drop under varied inlet

Jinying XI,Insun KANG,Hongying HU,Xian ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 554-562 doi: 10.1007/s11783-014-0671-z

Abstract: developed to simultaneously predict the Volatile Organic Compounds (VOCs) removal and filter bed pressure dropspecific surface area of the filter bed and the thickness of water layer, while the filter bed pressure dropThe calculated toluene removal efficiency and bed pressure drop satisfactorily fit the experimental dataloadings, which indicates the model in this study can be used to predict VOCs removal and bed pressure drop

Keywords： Volatile Organic Compounds (VOCs)     biofilters     modelling     biomass accumulation     pressure drop    

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Ultrasound-assisted emulsification solidified floating organic drop microextraction for the determination

Qingyun CHANG, Jingwen ZHANG, Xin DU, Jingjun MA, Jingci LI,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 187-195 doi: 10.1007/s11783-010-0030-7

Abstract: (LPME) technique was developed using ultrasound-assisted emulsification solidified floating organic drop

Keywords： ultrasound-assisted emulsification     solidified floating organic drop microextraction     flame atomic absorption    

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Solving topology optimization problems by the Guide-Weight method

Xinjun LIU, Zhidong LI, Liping WANG, Jinsong WANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1,   Pages 136-150 doi: 10.1007/s11465-010-0126-6

Abstract: Guide-Weight method, proposed first by Chen in 1980s, was effectively and successfully used in antennaWhen the Guide-Weight method is applied into topology optimization, it works very well with unified andThe algorithm of the Guide-Weight method and the improvement on it are described; two formulations oftopology optimization solved by the Guide-Weight method combining with SIMP method are presented; subsequently, three numerical examples are provided, and comparison of the Guide-Weight method with other methods

Keywords： Guide-Weight method     topology optimization     SIMP method    

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Hybrid intelligent water drop bundled wavelet neural network to solve the islanding detection by inverter-based

Mehrdad TARAFDAR HAGH,Homayoun EBRAHIMIAN,Noradin GHADIMI

Frontiers in Energy 2015, Volume 9, Issue 1,   Pages 75-90 doi: 10.1007/s11708-014-0337-3

Abstract: The weight parameters of the neural network were optimized by intelligent water drop (IWD) to improve

Keywords： islanding detection     neuro-wavelet     intelligent water drop (IWD)     non-detection zone (NDZ)     distributed generation    

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The investigation of pressure drop in moving-beds

CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 184-189 doi: 10.1007/s11705-007-0034-4

Abstract: The pressure drop of a cross-flow moving-bed was investigated in a two-dimensional rectangular apparatusvelocity, the formation and development of cavity/raceway and voidage of particles on the pressure dropThe experimental results show that the particle velocity has little influence on the pressure drop, whileThe development of a cavity or a raceway can result in three types of variations of pressure drop withOn the basis of experimental results, a model for calculating the pressure drop after a cavity occurs

Keywords： development     cross-flow velocity     superficial     qualitative account     stabilization    

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Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 412-423 doi: 10.1007/s11709-017-0416-8

Abstract: An experimental investigation is performed on four simply supported Light-Weight Concrete (LWC) one-way

Keywords： instantaneous deflection     light-weight concrete     expanded polystyrene     effective moment of inertia     cracking    

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Research progress in robust design of products, drop impact strength

Yang Shuyi,Liu Deshun,Zhao Jiyun,Wen Zejun

Strategic Study of CAE 2010, Volume 12, Issue 1,   Pages 61-66

Abstract:

Drop impact is an phenomena that object movement state arises sharp change

Keywords： drop impact     crashworthiness     robust design    

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Characterization of soil low-molecular-weight organic acids in the Karst rocky desertification region

Xiaoliang LI, Xiaomin CHEN, Xia LIU, Lianchuan ZHOU, Xinqiang YANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 195-203 doi: 10.1007/s11783-012-0391-1

Abstract: Soil low-molecular-weight (LMW) organic acids play important roles in the soil-forming process and the

Keywords： Karst rocky desertification     low-molecular-weight (LMW) organic acids     distribution characteristics     soil    

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Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Frontiers of Structural and Civil Engineering   Pages 812-826 doi: 10.1007/s11709-023-0940-7

Abstract: A falling weight deflectometer is a testing device used in civil engineering to measure and evaluate

Keywords： falling weight deflectometer     modulus of subgrade reaction     elastic modulus     metaheuristic algorithms    

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Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid

Fernando F. Rivera, Berenice Miranda-Alcántara, Germán Orozco, Carlos Ponce de León, Luis F. Arenas

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 399-409 doi: 10.1007/s11705-020-1934-9

Abstract: Calculated pressure drop was validated against experimental data obtained with typical cerium electrolytesIt was found that the pressure drop values were better described by the RANS approach, whereas the validity

Keywords： CFD simulation     porous media     porous electrode     pressure drop     redox flow battery    

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Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 675-684 doi: 10.1007/s11684-022-0970-x

Abstract: exploratory factor analysis was applied, the 15 indicators were divided into 6 core elements that varied in weight

Keywords： critical care medicine     quality control     evaluation     exploratory factor analysis (EFA) model    

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Uncovering the effect of poly(ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: Various hydrophilic poly(ethylene-co-vinyl alcohol) (EVOH) were used herein to precisely control the structure and hydrodynamic properties of polysulfone (PSF) membranes. Particularly, to prepare pristine PSF and PSF/EVOH blends with increasing vinyl alcohol (VOH: 73%, 68%, 56%), the non-solvent-induced phase separation (NIPS) technique was used. Polyethylene glycol was used as a compatibilizer and as a porogen in N,N-dimethylacetamide. Rheological and ultrasonic separation kinetic measurements were also carried out to develop an ultrafiltration membrane mechanism. The extracted membrane properties and filtration capabilities were systematically compared to the proposed mechanism. Accordingly, the addition of EVOH led to an increase in the rheology of the dopes. The resulting membranes exhibited a microporous structure, while the finger-like structures became more evident with increasing VOH content. The PSF/EVOH behavior was changed from immediate to delayed segregation due to a change in the hydrodynamic kinetics. Interestingly, the PSF/EVOH32 membranes showed high hydrophilicity and achieved a pure water permeability of 264 L·m–2·h–1·bar–1, which was higher than that of pure PSF membranes (171 L·m–2·h–1·bar–1). In addition, PSF/EVOH32 rejected bovine serum albumin at a high rate (> 90%) and achieved a significant restoration of permeability. Finally, from the thermodynamic and hydrodynamic results, valuable insights into the selection of hydrophilic copolymers were provided to tailor the membrane structure while improving both the permeability and antifouling performance.

Keywords： polysulfone     blend modification     ultrafiltration membrane     formation hydrodynamics     poly(ethylene-co-vinyl alcohol) copolymer    

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Title Author Date Type Operation

Improvement of impact resistance of plain-woven composite by embedding superelastic shape memory alloy wires

Xiaojun GU, Xiuzhong SU, Jun WANG, Yingjie XU, Jihong ZHU, Weihong ZHANG

Journal Article

Design of a shaking table test box for a subway station structure in soft soil

YANG Linde, ZHENG Yonglai, ZHANG Dongliang, JI Qianqian, YANG Chao

Journal Article

CFD evaluation of pressure drop across a 3-D filter housing for industrial gas turbine plants

Fidelis I. ABAM,Samuel O. EFFIOM,Olayinka S. OHUNAKIN

Journal Article

A biofilter model for simultaneous simulation of toluene removal and bed pressure drop under varied inlet

Jinying XI,Insun KANG,Hongying HU,Xian ZHANG

Journal Article

Ultrasound-assisted emulsification solidified floating organic drop microextraction for the determination

Qingyun CHANG, Jingwen ZHANG, Xin DU, Jingjun MA, Jingci LI,

Journal Article

Solving topology optimization problems by the Guide-Weight method

Xinjun LIU, Zhidong LI, Liping WANG, Jinsong WANG

Journal Article

Hybrid intelligent water drop bundled wavelet neural network to solve the islanding detection by inverter-based

Mehrdad TARAFDAR HAGH,Homayoun EBRAHIMIAN,Noradin GHADIMI

Journal Article

The investigation of pressure drop in moving-beds

CHEN Yunhua, ZHU Xuedong, WU Yongqiang, ZHU Zibin

Journal Article

Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Journal Article

Research progress in robust design of products, drop impact strength

Yang Shuyi,Liu Deshun,Zhao Jiyun,Wen Zejun

Journal Article

Characterization of soil low-molecular-weight organic acids in the Karst rocky desertification region

Xiaoliang LI, Xiaomin CHEN, Xia LIU, Lianchuan ZHOU, Xinqiang YANG

Journal Article

Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Journal Article

Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid

Fernando F. Rivera, Berenice Miranda-Alcántara, Germán Orozco, Carlos Ponce de León, Luis F. Arenas

Journal Article

Evaluation of ICUs and weight of quality control indicators: an exploratory study based on Chinese ICU

Journal Article

Uncovering the effect of poly(ethylene-co-vinyl alcohol) molecular weight and vinyl alcohol content on

Journal Article