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Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectivenessof Fe-based SMAs

Aydin HASSANZADEH; Saber MORADI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 281-301 doi: 10.1007/s11709-022-0807-3

Abstract: Optimal SMA-braced frames (SMA-BFs) with either Fe-based SMA or NiTi braces are determined in a performance-basedGeometric, strength, and performance-based design constraints are considered in the optimization.The results demonstrate that Fe-based SMA-BFs exhibit higher collapse capacity and more uniform distributionIn addition to a lower unit price compared to NiTi, Fe-based SMAs reduce SMA material usage.In frames with Fe-based SMA braces, the SMA usage is reduced by up to 80%.

Keywords： topology optimization     shape memory alloy     Fe-based SMA     steel braced frames     performance-based seismic    

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Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1586-8

Abstract:

● nZVI, S-nZVI, and nFeS were systematically compared for Cd(II) removal.

Keywords： Nano zero valent iron     Sulfided zero valent iron     FeS     Cd(II) immobilization     Fe dissolution    

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Controllable Fe/HCS catalysts in the Fischer-Tropsch synthesis: Effects of crystallization time

Yifei Wang, Shouying Huang, Xinsheng Teng, Hongyu Wang, Jian Wang, Qiao Zhao, Yue Wang, Xinbin Ma

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 802-812 doi: 10.1007/s11705-019-1866-4

Abstract: Among iron carbides, Fe C, as an active phase, has barely been studied due to its thermodynamic instabilityHere, we fabricated a series of Fe C embedded in hollow carbon sphere (HCS) catalysts.investigate the relationship between the geometric structure of the HCS and the physic-chemical properties of Feactivity in the FTS due to its high porosity, appropriate electronic environment, and relatively high Fe

Keywords： Fischer–Tropsch synthesis     Fe-based catalyst     Fe2C     hollow carbon sphere     crystallization time    

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Parametric study on damage control design of SMA dampers in frame-typed steel piers

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 384-394 doi: 10.1007/s11709-009-0065-7

Abstract: This paper focuses on damage control design of SMA dampers in steel frame piers.A parametric study based on time history analyses is carried out on frame-typed bridge piers with axial-typeSMA damping device.

Keywords： damage control design     shape memory alloy     parameter study     displacement-based verification     strain-based    

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Seismic responses and resilience of novel SMA-based self-centring eccentrically braced frames under near-fault

Zhi-Peng CHEN; Songye ZHU

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 962-975 doi: 10.1007/s11709-022-0873-6

Abstract: this paper, the seismic responses and resilience of a novel K-type superelastic shape memory alloy (SMAThe simulation models of the SMA-based SC-EBF and a corresponding equal-stiffness traditional EBF counterpartare first established based on some existing tests.The novel SMA-based SC-EBF shows a much better resilience in the study and represents a promising attractive

Keywords： shape memory alloy     eccentrically braced frame     self-centring     fragility     loss function     resilience    

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Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 341-355 doi: 10.1007/s11709-013-0221-y

Abstract: This research presents a new type of shape memory alloy (SMA)-based composite reinforcement with abilityIn this study, small diameter SMA wires are embedded in thermoset resin matrix with or without additionalThe proposed SMA-FRP composite square rebars are first fabricated and then embedded in small scale concreteIt is found that the SMA-FRP composite reinforcement is able to enhance the performance of concrete member

Keywords： re-centering     shape memory alloys     concrete     composite     fiber reinforced polymer     scanning electron microscopy    

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Lignin-based electrospun nanofiber membrane decorated with photo-Fenton Ag@MIF-100(Fe) heterojunctions

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 930-941 doi: 10.1007/s11705-023-2309-9

Abstract: we proposed using a simple electrospinning and in situ seeding method to fabricate a lignin-basedelectrospun nanofiber membrane (LENM) decorated with photo-Fenton Ag@MIL-100(Fe) heterojunctions forThanks to the embedded lignin in LENM, an ultrahigh MIL-100(Fe) loading (53 wt %) with good wettabilityAs a result, the hybrid Ag@MIL-100(Fe)/LENM exhibited excellent oil/water emulsions separation efficiencyTherefore, the lignin-based photo-Fenton hybrid membrane can lay the foundation for the preparation and

Keywords： lignin     electrospinning     heterojunctions     photo-Fenton catalysis     wastewater remediation    

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Grafting of PEG400 onto the surface of LLDPE/SMA film

CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 128-131 doi: 10.1007/s11705-007-0024-6

Abstract: Linear low-density polyethylene (LLDPE) was melt and blended with styrene-maleic anhydride copolymer (SMAResults show that PEG400 can be grafted onto the surface of the films via esterification with SMA.The immersion of PEG promotes the enrichment of SMA onto the surface of the films.These experiments show that surface functionalization of polyethylene films by blending SMA and then

Keywords： hydrophilicity     temperature     effective     immersion     reflection accessory    

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Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1608-1619 doi: 10.1007/s11705-023-2349-1

Abstract: of the most effective and cost-effective methods to mitigate the molten salt corrosion of commercial Fe–Cr–Ni

Keywords： concentrated solar power (CSP)     Mg corrosion inhibitor     Mg–Ni intermetallic     salt purification     thermal energy storage (TES)    

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A modular design kit for task-adaptable low-cost robots based on BaPaMan design

G. BORCHERT, C. L?CHTE, G. CARBONE, A. RAATZ

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 33-41 doi: 10.1007/s11465-013-0356-5

Abstract: paper shows the implementation of a construction kit which allows task-adaptation of low-cost robots baseddegree of freedom (DOF) spatial parallel robot which comprises flexure hinges and Shape Memory Alloy (SMA

Keywords： binary actuation     flexure hinges     SMA actuators     low-cost     design kit     task-adaptation    

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The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation

Keywords： Denitrification     N2O emission     Fe(II) oxidation     Fe/N ratio     Fe minerals    

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Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate/ Fe(II)/formic acid system in aqueous solution

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0987-6

Abstract: The performance of sodium percarbonate (SPC) activated with ferrous ion (Fe(II)) with the addition ofResults showed that CT could be entirely reduced within 15 min in the system at a variety of SPC/Fe(IIlarge extent, increased with increasing dosages of chemical agents and the optimal molar ratio of SPC/FeThis study demonstrated that SPC activated with Fe(II) with the addition of FA may be promising technique

Keywords： Carbon tetrachloride     Sodium percarbonate     Formic acid     Reductive radicals     Groundwater    

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Implementation of an optimum algorithm for structural reliability analysis based on FEM

CHENG Ying, TU Hong-mao, FAN Hong-li

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 468-471 doi: 10.1007/s11465-006-0061-8

Abstract: To analyze structural reliability by the stochastic FE (finite element) method rapidly and efficiently, a method combined with the FE method and gradient optimum algorithm based on ANSYS was presented whenANSYS-based development was adopted to implement it.Results of an example demonstrate that the method requires fewer FE calculations compared with the design

Keywords： satisfactory     interpretation     algorithm     structural reliability     stochastic FE    

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The development on seismic design and evaluation of CGNPC after Fukushima accident

Mao Qing,Wu Yingxi,Zhang Jian,Meng Ajun,Zhang Tao,Yang Chunju,Liu Fang

Strategic Study of CAE 2013, Volume 15, Issue 4,   Pages 46-51

Abstract:

This paper introduced the seismic design requirements of nuclear power plant, the seismic design situation of the unit in construction or in service, and the serious consequence impacted by earthquake. Then, it described in brief the measures on seismic analysis taken by countries who own nuclear power plants in the world after the Fukushima nuclear accident, and gave a particular introduction about the improvement taken by China Guangdong Nuclear Power Holding Co. Ltd. Finally, this paper presented some steps for the new nuclear power plants at the seismic design and evaluation to enhance the seismic capacity of nuclear power plants through technical means.

Keywords： seismic design basis     beyond design basis earthquake     seismic margin assessment（SMA）     seismic isolation    

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A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 450-459 doi: 10.1007/s11705-020-1930-0

Abstract: In this research, an eco-friendly magnetic adsorbent based on Fe O /salicylic acid nanocomposite was

Keywords： cadmium     magnetic solid-phase extraction     Fe3O4 nanoparticles     Fe3O   

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Title Author Date Type Operation

Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectivenessof Fe-based SMAs

Aydin HASSANZADEH; Saber MORADI

Journal Article

Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Journal Article

Controllable Fe/HCS catalysts in the Fischer-Tropsch synthesis: Effects of crystallization time

Yifei Wang, Shouying Huang, Xinsheng Teng, Hongyu Wang, Jian Wang, Qiao Zhao, Yue Wang, Xinbin Ma

Journal Article

Parametric study on damage control design of SMA dampers in frame-typed steel piers

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI,

Journal Article

Seismic responses and resilience of novel SMA-based self-centring eccentrically braced frames under near-fault

Zhi-Peng CHEN; Songye ZHU

Journal Article

Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Journal Article

Lignin-based electrospun nanofiber membrane decorated with photo-Fenton Ag@MIF-100(Fe) heterojunctions

Journal Article

Grafting of PEG400 onto the surface of LLDPE/SMA film

CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei

Journal Article

Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Journal Article

A modular design kit for task-adaptable low-cost robots based on BaPaMan design

G. BORCHERT, C. L?CHTE, G. CARBONE, A. RAATZ

Journal Article

The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Journal Article

Enhanced reductive degradation of carbon tetrachloride by carbon dioxide radical anion-based sodium percarbonate/ Fe(II)/formic acid system in aqueous solution

Wenchao Jiang, Ping Tang, Shuguang Lu, Xiang Zhang, Zhaofu Qiu, Qian Sui

Journal Article

Implementation of an optimum algorithm for structural reliability analysis based on FEM

CHENG Ying, TU Hong-mao, FAN Hong-li

Journal Article

The development on seismic design and evaluation of CGNPC after Fukushima accident

Mao Qing,Wu Yingxi,Zhang Jian,Meng Ajun,Zhang Tao,Yang Chunju,Liu Fang

Journal Article

A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Journal Article