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Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0726-y

Abstract: Balance valve is a core component of the 11000-meter manned submersible “struggle,” and its sealing performanceFinally, the minimum sealing force equation is applied in a balance valve to be experimented using aThe balance valve designed through the minimum sealing force equation is leak-free in the experiment.Thus, the minimum sealing force equation is suitable for the ultrahigh pressure balance valve and hasguiding significance for evaluating the sealing performance of ultrahigh pressure balance valves.

Keywords： seawater balance valve     sealing performance     hybrid ANE model     FEM     minimum sealing force equation    

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Compressive behavior and microstructure of concrete mixed with natural seawater and sea sand

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1347-1357 doi: 10.1007/s11709-021-0780-2

Abstract: Noncorrosive reinforcement materials facilitate producing structural concrete with seawater and sea sandThis study investigated the properties of seawater and sea sand concrete (SSC), considering the curingXRD patterns identified Friedel’s salt phase due to the chlorides brought by seawater and sea sand.

Keywords： seawater and sea sand concrete     compressive strength     strain field     microstructure     hydration products    

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A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1295-0

Abstract: . • Seawater was proved to be an alternative activation agent. • Minerals vaporization increased theBenefited from our design, the catalytic effect of seawater increased not only the surface area but alsothe graphitization degree of biochar when comparing the pyrolysis of sewage sludge without seawater.This leads to seawater activated biochar electrodes with lower resistance, higher capacitance of 113.9F/g comparing with control groups without seawater.

Keywords： Sewage sludge     Biochar     Seawater     Recourse recovery     Capacitor    

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From seawater to hydrogen via direct photocatalytic vapor splitting: A review on device design and system

Frontiers in Energy 2024, Volume 18, Issue 3,   Pages 291-307 doi: 10.1007/s11708-024-0917-9

Abstract: Solar-driven hydrogen production from seawater attracts great interest for its emerging role in decarbonizingGiven the complexity of natural seawater content, photocatalytic vapor splitting offers a low-cost andphotothermal–photocatalytic device design and system integration, the recent research advances on vapor splitting from seawaterreviewed, including vapor temperature and pressure control during solar thermal vapor generation from seawaterand industrial-scale systems, and the integration principles and remaining challenges in the future seawater-to-hydrogen

Keywords： seawater     hydrogen     photocatalytic     vapor splitting     solar-driven    

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Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 212-218 doi: 10.1007/s11465-010-0009-x

Abstract: Increasing the driving frequency of a piezoelectric vibrator can resolve the bottleneck of low flow in a valveHowever, a piezoelectric pump of a traditional valve body presents the hysteretic nature of the valveFirst, through the sub-experiment on various parameters of the plate valve of a piezoelectric pump, thethe hysteretic nature of the valve, were discovered.Second, an “E”-shaped valve and piezoelectric pump with an “E”-shaped valve (

Keywords： piezoelectricity     valve     pump     experiment     “     E”     -shaped valve    

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Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 54-61 doi: 10.1007/s11783-013-0493-4

Abstract: by hydrothermal activation after alkali fusion and coal fly ash (CFA) was used as raw material with seawaterSeawater salinity was varied from 32 to 88 for zeolite crystallization during the hydrothermal processThe results show that seawater salinity plays an important role in zeolite synthesis with CFA duringThe products were a mixture of NaX zeolite and hydroxysodalite; seawater salinity more strongly affectedThe proposed method allows for the efficient disposal of by-products; therefore, the application of seawater

Keywords： coal fly ash (CFA)     seawater salinity     zeolite synthesis    

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Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 449-458 doi: 10.1007/s11708-014-0316-8

Abstract: This paper presents the well-known power system ED problem solution considering valve-point effect byhas been applied to various test systems with incremental fuel cost function, taking into account the valve-point

Keywords： artificial bee colony (ABC) algorithm     economic dispatch (ED)     valve-point effect     optimization    

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strong>x nanosheets on Ni foam as an electrocatalyst for efficient overall alkaline seawater

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1698-1706 doi: 10.1007/s11705-023-2334-8

Abstract: NiFeRuOx/NF displays high electrocatalytic activity and stability for overall alkaline seawater

Keywords： NiFeRuOx nanosheets     Ni foam     electrocatalysis     overall seawater splitting     solar-driven    

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An overview and recent advances in electrocatalysts for direct seawater splitting

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1408-1426 doi: 10.1007/s11705-021-2102-6

Abstract: In comparison to pure water, seawater is widely accepted as an unlimited resource.The direct seawater splitting is economical and eco-friendly, but the key challenges in seawater, especiallyThe development of earth-abundant electrocatalysts toward direct seawater splitting has emerged as aThis review first discusses the macroscopic understanding of direct seawater electrolysis and then focuseson the strategies for rational design of electrocatalysts toward direct seawater splitting.

Keywords： seawater splitting     electrocatalysts     oxygen evolution reaction     hydrogen evolution reaction     chlorine    

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improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve

Frontiers of Medicine 2021, Volume 15, Issue 3,   Pages 416-437 doi: 10.1007/s11684-021-0852-7

Abstract: Over the last half century, surgical aortic valve replacement (SAVR) has evolved to offer a durable andefficient valve haemodynamically, with low procedural complications that allows favourable remodellinglatter has become more challenging among elderly patients, particularly following trans-catheter aortic valvePrecise understanding of myocardial adaptation to pressure and volume overloading and its responses to valvesurgery requires comprehensive assessments from aortic valve energy loss, valvular-vascular impedance

Keywords： surgical aortic valve replacement     trans-catheter aortic valve implantation     left ventricular hypertrophy    

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Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceon the basis of the results of the computational fluid dynamics (CFD) and the experiments of control valveResults indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is themost sufficient to dampen any excessive control valve poppet bouncing.

Keywords： control     computational     bouncing     CFD     excessive control    

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Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 420-434 doi: 10.1007/s11465-020-0622-2

Abstract: of improving the dynamic performance, reliability, and digitization of the traditional proportional valveof the dual nozzle-flapper valve’s working principle.First, the working principle and mathematical model of the proposed valve are determined.maximum pressure sensitivity, flow controllability, and flow linearization is proposed to improve the balancebetween the effective displacement and the displacement fluctuation of the main valve.

Keywords： two-stage proportional valve     digital flow distribution     high-speed on/off valve     position tracking characteristic    

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Simulation of bubble column reactors using CFD coupled with a population balance model

Tiefeng WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 162-172 doi: 10.1007/s11705-009-0267-5

Abstract: The population balance model (PBM) is an effective approach to predict the bubble size distribution,

Keywords： bubble column     computational fluid dynamics     bubble breakup and coalescence     population balance model     bubble    

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Piezoelectric pump with flexible venous valves for active cell transmission

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0712-4

Abstract: In this study, we designed a piezoelectric pump with a flexible venous valve inspired by that of humanselectric-solid-liquid multi-physical field coupling of the piezoelectric pump with a flexible venous valve

Keywords： venous valve     flexible venous valve     cell transmission     organ-on-a-chip system     piezoelectric device    

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Water pumping analysis and experimental validation of beach well infiltration intake system in a seawater

Huan ZHANG,Shu LIU,Xuejing ZHENG,Gaofeng CHEN

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 335-342 doi: 10.1007/s11708-015-0365-7

Abstract: conservation equation and Darcy’s law, a model of beach well infiltration intake system applied in a seawaterThe model consists of the seawater seepage and the heat transfer process.

Keywords： water pumping analysis     experimental validation     infiltration intake system     seawater source heat pump    

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Title Author Date Type Operation

Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Journal Article

Compressive behavior and microstructure of concrete mixed with natural seawater and sea sand

Journal Article

A “Seawater-in-Sludge” approach for capacitive biochar production via the alkaline and alkaline earth

Xiling Li, Tianwei Hao, Yuxin Tang, Guanghao Chen

Journal Article

From seawater to hydrogen via direct photocatalytic vapor splitting: A review on device design and system

Journal Article

Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Journal Article

Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Journal Article

Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Journal Article

strong>x nanosheets on Ni foam as an electrocatalyst for efficient overall alkaline seawater

Journal Article

An overview and recent advances in electrocatalysts for direct seawater splitting

Journal Article

improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve

Journal Article

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Journal Article

Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Journal Article

Simulation of bubble column reactors using CFD coupled with a population balance model

Tiefeng WANG

Journal Article

Piezoelectric pump with flexible venous valves for active cell transmission

Journal Article

Water pumping analysis and experimental validation of beach well infiltration intake system in a seawater

Huan ZHANG,Shu LIU,Xuejing ZHENG,Gaofeng CHEN

Journal Article