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Impact of gasoline engine deposits on light duty vehicle emissions: in-use case study in Beijing, China

Xin YUE, Ye WU, Xianjiang HUANG, Yao MA, Yuan PANG, Xiaofeng BAO, Jiming HAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 717-724 doi: 10.1007/s11783-012-0438-3

Abstract: The accumulation of engine deposits due to inadequate gasoline detergency is considered to be one ofSix in-use light-duty gasoline vehicles in Beijing were tested to investigate the impact of engine depositsstart and hot running test conditions from the six light duty vehicles were measured before and after engineVariations of emission changes upon removal of engine deposits were observed.Such variations are in line with previous studies, implying that the impact patterns of engine deposits

Keywords： engine deposit     fuel quality     detergency     vehicle emission    

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Long-term settlement behavior of ground around shield tunnel due to leakage of water in soft deposit

Huaina WU, Yeshuang XU, Shui-long SHEN, Jin-chun CHAI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 194-198 doi: 10.1007/s11709-011-0105-y

Abstract: The lining of shield tunnel is usually composed of segments, in which the joints, cracks, and the grouting holes (hereafter called lining deficit) exist. During the long-term running, soils and groundwater may leak from these kinds of lining deficit. The leaking of soil and groundwater causes the long-term ground loss around tunnel and thus results in the settlement of ground surface. This paper aims to analyze the impact of the leakage of groundwater through segments on the long-term settlement of ground surface. The adopted analytical method is based on the theory of groundwater seepage by using numerical simulation. The analyzed results show that settlement of ground surface increases gradually with the increase of the leaked volume of tunnel segments. When the leaked volume was unevenly distributed, differential settlement occurred locally. Comparative analysis by changing the leaked volume was conducted. The results reveal that there is a linear relationship between settlement and leaked volume when the leaked volume was controlled within the allowable limit.

Keywords： lining deficit     leakage of water     shield tunnel     settlement     soft deposit    

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Design and modeling of a free-piston engine generator

Frontiers in Energy   Pages 811-821 doi: 10.1007/s11708-022-0848-2

Abstract: Free-piston engine generators (FPEGs) can be applied as decarbonized range extenders for electric vehiclesThe parameter-decoupling approach first divides the FPEG into three parts: a two-stroke engine, an integratedEmpirical equations were adopted to design the engine and scavenging pump, while special considerations

Keywords： free-piston engine generator     linear permanent magnet synchronous machine     system design     numerical model    

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Effect of oil shale semi-coke on deposit mineralogy and morphology in the flue path of a CFB burning

Zhuo LIU, Jianbo LI, Mingming ZHU, Xiaofeng LU, Zhezi ZHANG, Dongke ZHANG

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 26-37 doi: 10.1007/s11708-020-0668-1

Abstract: When ZD was burned alone, the P W deposit was comprised of agglomerates (<30 m) enriched in CaSO andThe P L deposit was mainly fine ash particles where Na SiO and Na SO were absent.aluminosilicates dominated the mineral phases whereas Na SiO and Na SO disappeared, showing a decrease in depositLikewise, the P W deposit was found less spread on the probe, decreasing its deposition propensity.Na-bearing minerals turned into (Na, K)(Si Al)O and (Ca, Na)(Si, Al) O in the P W deposit.

Keywords： ash deposition     circulating fluidized bed (CFB)     mineral transformation     oil shale semi-coke (SC)     Zhundong lignite (ZD)    

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Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel producedfrom waste engine oil and waste plastics

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1063-6

Abstract:

To derive liquid fuel from waste engine oil and plastics thoroughpyrolysis process

To make equal blend of waste engineitemcontent>

To find the suitability of fuel from waste in diesel engine

Keywords： Waste engine oil     Waste plastic oil     Diesel fuel     Pyrolysis     Compression ignition engine    

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A new miniaturized engine based on thermomagnetic effect of magnetic fluids

Lujun ZHOU, Yimin XUAN, Qiang LI, Wenlei LIAN

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 160-166 doi: 10.1007/s11708-009-0018-9

Abstract: A new engine system, essentially consisting of a permanent NdFeB magnet, a kerosene-based magnetic fluiddigital camera was used to record the rotation speed of the rotor to investigate the performance of the engineTherefore, the performance of such an engine can be controlled conveniently by changing the external

Keywords： magnetic fluid     thermomagnetic effect     engine    

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Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0731-1

Abstract: This study proposes a method of full-field and real-time strain reconstruction of an aero-engine bladeThe proposed method is validated on an aero-engine blade in numerical and experimental cases.

Keywords： aero-engine blade     displacement response     dynamic strain reconstruction     mode shape     strain gauge    

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Satellite scheduling engine: The intelligent solver for future multi-satellite management

Frontiers of Engineering Management 2022, Volume 9, Issue 4,   Pages 683-688 doi: 10.1007/s42524-022-0222-4

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Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 798-813 doi: 10.1007/s11465-021-0645-3

Abstract: External pipe routing for aero-engine in limited three-dimensional space is a typical nondeterministicThis paper presents an automatic multiple pipe routing method for aero-engine that focuses on parallelFinally, the simulation results on an aero-engine demonstrate the feasibility and effectiveness of the

Keywords： multiple pipe routing     optimization algorithm     aero-engine     pipe grouping     parallel layout    

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The Research Methods for the Rockburst Disaster in the Open Complex Giant System of Deep Deposit Exploitation

Jia Mingtao,Pan Changliang,Wang Liguan

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 74-78

Abstract:

Rockburst is one of the disasters in the course of deep deposit exploitation.Being based on the analysis of the system characters, the paper puts forward that the deep deposit exploitation

Keywords： deep deposit exploitation     open complex giant system     rockburst disaster     meta synthesis    

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Progress in hydrogen enriched hydrocarbons combustion and engine applications

Zuohua HUANG, Jinhua WANG, Erjiang HU, Chenglong TANG, Yingjia ZHANG

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 73-80 doi: 10.1007/s11708-013-0287-1

Abstract: Based on fundamental combustion, both homogeneous spark-ignition engine and direct-injection spark-ignitionengine fueled with natural gas-hydrogen blends were conducted and the technical route of natural gas-hydrogen

Keywords： hydrogen enriched hydrocarbon combustion     fundamental study     engine application    

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Petroleum exploration of marine deposit,shallow,Carboniferous andvolcanic tuff reservoir in the western

Wang Jianyong,Wang Xuezhong,Ma Liqun

Strategic Study of CAE 2012, Volume 14, Issue 7,   Pages 81-86

Abstract:

In 2011, petroleum exploration of marine deposit,shallow,Carboniferous

Keywords： Carboniferous     volcanic tuff     marine deposit     shallow     the western margin of Junggar Basin    

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Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 184-192 doi: 10.1007/s11708-009-0007-z

Abstract: experimental data, typical off-design characteristic curves with corresponding formulas of internal combustion enginedifference Δ , relative steam production and superheated steam temperature decrease with the decrease in engine

Keywords： internal combustion engine (ICE)     cogeneration     heat recovery steam generator (HRSG)     off-design     superheated    

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Performance and emission characteristics of a diesel engine operating on different water in diesel emulsion

Seyed Saeed HOSEINI, Mohammad Amin SOBATI

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 636-657 doi: 10.1007/s11708-019-0646-7

Abstract: oxide (NO ) release of diesel engines can be reduced using water in diesel emulsion fuel without any engineAfterwards, the performance characteristics and exhaust emission of a single cylinder air-cooled diesel engineA comparison was made between the best emulsion fuel and the neat diesel fuel for engine performance

Keywords： emulsion fuel     hydrophilic-lipophilic balance (HLB)     response surface methodology (RSM)     emulsion stability     engine    

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Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 11-11 doi: 10.1007/s11465-021-0667-x

Abstract: In the design and troubleshooting of aero-engine pipeline, the vibration reduction of the pipeline systemis taken as the design variable, and an innovative optimization method of avoiding vibration of aero-engine

Keywords： length adjustment     spatial pipeline     aero-engine     vibration avoidance optimization     genetic algorithm    

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Title Author Date Type Operation

Impact of gasoline engine deposits on light duty vehicle emissions: in-use case study in Beijing, China

Xin YUE, Ye WU, Xianjiang HUANG, Yao MA, Yuan PANG, Xiaofeng BAO, Jiming HAO

Journal Article

Long-term settlement behavior of ground around shield tunnel due to leakage of water in soft deposit

Huaina WU, Yeshuang XU, Shui-long SHEN, Jin-chun CHAI

Journal Article

Design and modeling of a free-piston engine generator

Journal Article

Effect of oil shale semi-coke on deposit mineralogy and morphology in the flue path of a CFB burning

Zhuo LIU, Jianbo LI, Mingming ZHU, Xiaofeng LU, Zhezi ZHANG, Dongke ZHANG

Journal Article

Study of engine performance, emission and combustion characteristics fueled with diesel-like fuel producedfrom waste engine oil and waste plastics

V. Edwin Geo, Ankit Sonthalia, Fethi Aloui, Femilda Josephin J. S.

Journal Article

A new miniaturized engine based on thermomagnetic effect of magnetic fluids

Lujun ZHOU, Yimin XUAN, Qiang LI, Wenlei LIAN

Journal Article

Full-field dynamic strain reconstruction of an aero-engine blade from limited displacement responses

Journal Article

Satellite scheduling engine: The intelligent solver for future multi-satellite management

Journal Article

Group-based multiple pipe routing method for aero-engine focusing on parallel layout

Journal Article

The Research Methods for the Rockburst Disaster in the Open Complex Giant System of Deep Deposit Exploitation

Jia Mingtao,Pan Changliang,Wang Liguan

Journal Article

Progress in hydrogen enriched hydrocarbons combustion and engine applications

Zuohua HUANG, Jinhua WANG, Erjiang HU, Chenglong TANG, Yingjia ZHANG

Journal Article

Petroleum exploration of marine deposit,shallow,Carboniferous andvolcanic tuff reservoir in the western

Wang Jianyong,Wang Xuezhong,Ma Liqun

Journal Article

Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Journal Article

Performance and emission characteristics of a diesel engine operating on different water in diesel emulsion

Seyed Saeed HOSEINI, Mohammad Amin SOBATI

Journal Article

Optimization of aero-engine pipeline for avoiding vibration based on length adjustment of straight-line

Journal Article