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Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 194-200 doi: 10.1007/s11709-014-0251-0

Abstract: curves proposed in literature for soft clays are imported into a beam-on-nonlinear-Winkler-foundation

Keywords： laterally loaded     pile     soft clay     p?y curves     finite element method (FEM)    

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A pre-compensation method of the systematic contouring error for repetitive command paths

ZHANG,Y. H. CHEN,Y. P. CHEN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 367-372 doi: 10.1007/s11465-015-0367-5

Abstract: <p>For a repetitive command path, pre-compensating the contouring error by modifying the command pathp>

Keywords： contouring error     pre-compensation     motion control system     back propagation (BP) neural network    

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Poor adherence to P2Y12 antagonists increased cardiovascular risks in Chinese PCI-treated patients

Yang Sun,Chenze Li,Lina Zhang,Dong Hu,Xudong Zhang,Ting Yu,Min Tao,Dao Wen Wang,Xiaoqing Shen

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 53-61 doi: 10.1007/s11684-017-0502-2

Abstract: <p>Low adherence to secondary prevention medications (ATM) of patients after acute coronary syndromecoronary artery bypass grafting (CABG) alone had significantly lower proportion of high adherence to P2Y12Moreover, in patients undergoing PCI, high adherence to P2Y12 antagonists decreased the risk of MACE(hazard ratio=0.172, 95% confidence interval: 0.039–0.763; P=0.021).High adherence to P2Y12 antagonists was associated with lower risk of MACE.p>

Keywords： acute coronary syndromes     adherence to secondary prevention medications     clinical outcome    

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Population-Based and Personalized Design of Total Knee Replacement Prosthesis for Additive Manufacturing Based on Chinese Anthropometric Data Article

Shi, P. Augat, R.M.Y. Wong, S.K.H. Chow, X.Y. Huang, C.Y. Chen, Y.X. Lai, P.S.H. Yung, L. Qin, W.H.

Engineering 2021, Volume 7, Issue 3,   Pages 386-394 doi: 10.1016/j.eng.2020.02.017

Abstract: <p>At present, most total knee replacement (TKR) prostheses on the market are designed according to thep>

Keywords： Additive manufacturing     Population-based design     Total knee replacement     Knee prosthesis     Anthropometric measurement    

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Development of realistic design fire time-temperature curves for the testing of cold-formed steel wall

Anthony Deloge ARIYANAYAGAM,Mahen MAHENDRAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 427-447 doi: 10.1007/s11709-014-0279-1

Abstract: This paper presents the details of a research study aimed at developing realistic design fire curvesincludes a review of the characteristics of building fires, previously developed fire time-temperature curvesThe paper highlights that real building fire time-temperature curves depend on the fuel load representingFinally, realistic design fire time-temperature curves simulating the fire conditions in modern residential

Keywords： fire safety     standard fire curve     realistic design fire time-temperature curves     light gauge steel frame    

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Nonlinear design-point performance adaptation approaches and their comparisons for gas turbine applications

Y. G. LI, P. PILIDIS,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 446-455 doi: 10.1007/s11708-009-0042-9

Abstract: Accurate performance simulation and understanding of gas turbine engines is very useful for gas turbine manufacturers and users alike and such a simulation normally starts from its design point. When some of the engine component parameters for an existing engine are not available, they must be estimated in order that the performance analysis can be started. Therefore, the simulated design point performance of an engine may be slightly different from its actual performance. In this paper, two nonlinear gas turbine design-point performance adaptation approaches have been presented to best estimate the unknown component parameters and match available design point engine performance, one using a nonlinear matrix inverse adaptation method and the other using a Genetic Algorithm-based adaptation approach. The advantages and disadvantages of the two adaptation methods have been compared with each other. In the approaches, the component parameters may be compressor pressure ratios and efficiencies, turbine entry temperature, turbine efficiencies, engine mass flow rate, cooling flows, and by-pass ratio, etc. The engine performance parameters may be thrust and SFC for aero engines, shaft power, and thermal efficiency for industrial engines, gas path pressures, temperatures, etc. To select the most appropriate to-be-adapted component parameters, a sensitivity bar chart is used to analyze the sensitivity of all potential component parameters against the engine performance parameters. The two adaptation approaches have been applied to a model gas turbine engine. The application shows that the sensitivity bar chart is very useful in the selection of the to-be-adapted component parameters, and both adaptation approaches are able to produce good quality engine models at design point. The comparison of the two adaptation methods shows that the nonlinear matrix inverse method is faster and more accurate, while the genetic algorithm-based adaptation method is more robust but slower. Theoretically, both adaptation methods can be extended to other gas turbine engine performance modelling applications.

Keywords： gas turbine     engine     performance adaptation     performance matching     design-point performance simulation     influence coefficient matrix     genetic algorithm    

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Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-022-1560-5

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Smart Grids with Intelligent Periphery: An Architecture for the Energy Internet Artical

Wu,Pravin P. Varaiya,Ron S. Y. Hui

Engineering 2015, Volume 1, Issue 4,   Pages 436-446 doi: 10.15302/J-ENG-2015111

Abstract: <p>A future smart grid must fulfill the vision of the Energy Internet in which millions of people producep>

Keywords： smart grid     future grid     Energy Internet     energy-management system     integrating renewables     power system operation     power system control     distribution automation systems     demand-side management    

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Meter-scale variation within a single transect demands attention to taxon accumulation curves in riverine

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1543-6

Abstract: <p>● Riverine microbiomes exhibited hyperlocal variation within a single

Keywords： Microbiome     Freshwater     Taxon accumulation curve     Community assembly    

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Phosphorous removal from wastewater by lanthanum modified Y zeolites

Weikang ZHANG, Ye TIAN

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2,   Pages 209-215 doi: 10.1007/s11705-014-1448-4

Abstract: The adsorption capacities of Y zeolite and La (III)-modified Y zeolite were studied.A series of La(III)-modified Y zeolites with different La/Y zeolite mass ratios were characterized byThe capacity of the La (III)-modified Y zeolite to remove phosphate increased as the La/Y zeolite massratio increased and after 4 h, a phosphate removal efficiency of 95% was achieved for a La/Y zeolite

Keywords： phosphate removal     wastewater     lanthanum     impregnation     Y zeolites    

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Damage-constitutive model for seawater coral concrete using different stirrup confinements subjected to axial loading

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 429-447 doi: 10.1007/s11709-022-0913-2

Abstract: Subsequently, the stress−strain curves of specimens subjected to axial loading were measured., and the proposed damage-constitutive model had a good correlation with the measured stress−strain curves

Keywords： coral aggregate concrete     stress−strain curves     lateral effective stress     peak stress     axial−lateralcurves     damage-constitutive model.    

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Seismic fragility curves for structures using non-parametric representations

Chu MAI, Katerina KONAKLI, Bruno SUDRET

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 169-186 doi: 10.1007/s11709-017-0385-y

Abstract: Fragility curves are commonly used in civil engineering to assess the vulnerability of structures toThe classical approach relies on assuming a lognormal shape of the fragility curves; it is thus parametricAs an illustration, we compute the fragility curves for a three-storey steel frame using a large numberThe curves obtained with the non-parametric approaches are compared with respective curves based on theIt is found that the accuracy of the lognormal curves depends on the ground motion intensity measure,

Keywords： earthquake engineering     fragility curves     lognormal assumption     non-parametric approach     kernel density estimation    

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Anion-exchange membrane direct ethanol fuel cells: Status and perspective

Zhao, Y.S. Li, S.Y. Shen

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 443-458 doi: 10.1007/s11708-010-0127-5

Abstract: Direct ethanol fuel cells (DEFCs) are a promising carbon-neutral and sustainable power source for portable, mobile, and stationary applications. However, conventional DEFCs that use acid proton-exchange membranes (typically Nafion type) and platinum-based catalysts exhibit low performance (i.e., the state-of-the-art peak power density is 79.5 mW/cm at 90°C). Anion-exchange membrane (AEM) DEFCs that use low-cost AEM and non-platinum catalysts have recently been demonstrated to yield a much better performance (i.e., the state-of-the-art peak power density is 160 mW/cm at 80°C). This paper provides a comprehensive review of past research on the development of AEM DEFCs, including the aspects of catalysts, AEMs, and single-cell design and performance. Current and future research challenges are identified along with potential strategies to overcome them.

Keywords： fuel cell     direct ethanol fuel cells     anion-exchange membrane     ethanol oxidation reaction     oxygen reduction reaction     cell performance    

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Research on the valveless piezoelectric pump with Y-shape pipes

ZHANG Jianhui, LU Jizhuang, XIA Qixiao

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 144-151 doi: 10.1007/s11465-007-0024-8

Abstract: A piezoelectric pump with its Y-shape elements is presented.Two Y-shape pipes are fixed outside the chamber serving as an inlet and outlet, with the chamber andEddies occurring in the Y-shape elements are smaller, which is beneficial for the transport of living

Keywords： chamber serving     beneficial     working frequency     long-link     correction    

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Cracking evolution behaviors of lightweight materials based on

Y. Luo, S. C. Wu, Y. N. Hu, Y. N. Fu

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 461-481 doi: 10.1007/s11465-018-0481-2

Abstract: <p>Damage accumulation and failure behaviors are crucial concerns during the design and service of ap>

Keywords： fatigue crack initiation and growth     fatigue damage mechanism     damage tolerance     defect characterization     laser welded aluminum alloys    

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Title Author Date Type Operation

Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Journal Article

A pre-compensation method of the systematic contouring error for repetitive command paths

ZHANG,Y. H. CHEN,Y. P. CHEN

Journal Article

Poor adherence to P2Y12 antagonists increased cardiovascular risks in Chinese PCI-treated patients

Yang Sun,Chenze Li,Lina Zhang,Dong Hu,Xudong Zhang,Ting Yu,Min Tao,Dao Wen Wang,Xiaoqing Shen

Journal Article

Population-Based and Personalized Design of Total Knee Replacement Prosthesis for Additive Manufacturing Based on Chinese Anthropometric Data

Shi, P. Augat, R.M.Y. Wong, S.K.H. Chow, X.Y. Huang, C.Y. Chen, Y.X. Lai, P.S.H. Yung, L. Qin, W.H.

Journal Article

Development of realistic design fire time-temperature curves for the testing of cold-formed steel wall

Anthony Deloge ARIYANAYAGAM,Mahen MAHENDRAN

Journal Article

Nonlinear design-point performance adaptation approaches and their comparisons for gas turbine applications

Y. G. LI, P. PILIDIS,

Journal Article

Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Journal Article

Smart Grids with Intelligent Periphery: An Architecture for the Energy Internet

Wu,Pravin P. Varaiya,Ron S. Y. Hui

Journal Article

Meter-scale variation within a single transect demands attention to taxon accumulation curves in riverine

Journal Article

Phosphorous removal from wastewater by lanthanum modified Y zeolites

Weikang ZHANG, Ye TIAN

Journal Article

Damage-constitutive model for seawater coral concrete using different stirrup confinements subjected to axial loading

Journal Article

Seismic fragility curves for structures using non-parametric representations

Chu MAI, Katerina KONAKLI, Bruno SUDRET

Journal Article

Anion-exchange membrane direct ethanol fuel cells: Status and perspective

Zhao, Y.S. Li, S.Y. Shen

Journal Article

Research on the valveless piezoelectric pump with Y-shape pipes

ZHANG Jianhui, LU Jizhuang, XIA Qixiao

Journal Article

Cracking evolution behaviors of lightweight materials based on

Y. Luo, S. C. Wu, Y. N. Hu, Y. N. Fu

Journal Article