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Emission components characteristics of a bi-fuel vehicle at idling condition

Sameh M. METWALLEY, Shawki A. ABOUEL-SEOUD, Abdelfattah M. FARAHAT

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 322-329 doi: 10.1007/s11708-011-0158-6

Abstract: The vehicle engine was converted to bi-fueling system from a gasoline engine, and operated separatelyventuri-continuous) are used, and their influences on the formation of emissions at different operating conditions

Keywords： road vehicle engine     fuel injection systems     carbon monoxide (CO)     carbon dioxide (CO2)     totalhydrocarbon (THC)     vehicle idle conditions     air index    

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Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 326-333 doi: 10.1007/s11708-017-0489-z

Abstract: method was proposed to analyze the durability of MEA, considering the actual operation of the fuel cell vehicleThe proposed method includes 7 working conditions: open circuit voltage (OCV), idling, rated output,

Keywords： polymer electrolyte membrane fuel cell     accelerated life-time test     load cycling test     durability    

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Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 366-370 doi: 10.1007/s11709-008-0056-0

Abstract: Through field investigation, this paper examined the changes of ecological conditions induced by tunnelThe changed ecological conditions are beneficial for the settlement and growth of some herb and shrub

Keywords： supplement     fragmentation     reference     tunneling activity     vegetation situation    

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Assessing artificial neural network performance for predicting interlayer conditions and layer modulus

Lingyun YOU, Kezhen YAN, Nengyuan LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 487-500 doi: 10.1007/s11709-020-0609-4

Abstract: evaluate the performance of the artificial neural network (ANN) approach for predicting interlayer conditionsTo achieve this goal, two ANN based back-calculation models were proposed to predict the interlayer conditionsback-calculation model developed with ANN could be used to accurately predict layer modulus and interlayer conditions

Keywords： asphalt pavement     interlayer conditions     finite element method     artificial neural network     back-calculation    

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Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 348-353 doi: 10.1007/s11709-010-0077-3

Abstract: To investigate the influence of initial curing conditions and exposure environments on chloride ions’ migration in concrete, the specimens that were cured in different conditions and placed in severalThe results indicated that the initial curing conditions and the wet-dry interval of external environments

Keywords： durability     effective diffusion coefficient     steady-state     migration test    

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Long March 3 Series Launch Vehicle

Long Lehao

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 11-18

Abstract:

The background, design approach, system engineering, launch results and technical & development characteristics of LM - 3 series launch vehicles are presented, and the development of launch vehicles in the future is prospected. It is indicated that with advanced performance, these launch vehicles are the main force of commercial heavy lift in China.

Keywords： aerospace     heavy lift launch vehicle     launch services     LM - 3 series launch vehicle    

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Boundary conditions for axisymmetric piezoelectric cylinder

Baosheng ZHAO, Di WU, Xi CHEN

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 401-408 doi: 10.1007/s11465-013-0272-8

Abstract: A decay analysis technique developed by Gregory and Wan is converted into necessary conditions on theThe prescribed end-data of the circle cylinder must satisfy these conditions in order that they couldWhen stress and mixed conditions are imposed on the end of cylinder, these decaying state conditionsThey are then used for the correct formulation of boundary conditions for the theory solution (or theThe results of the present paper enable us to establish a set of correct boundary conditions, most of

Keywords： solid and structures     the axisymmetric deformation     the piezoelectric circular cylinder     the refined theory     Bessel’s Function    

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Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 359-368 doi: 10.1007/s11465-011-0222-2

Abstract: numerically simulated, considering the rotation speeds of a turntable from 0 to 5 m/s and different boundary conditions

Keywords： hydrostatic oil cavity     flow state     oil cavity pressure     stability     vortex    

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Performance design of a cryogenic air separation unit for variable working conditions using the lumped

Jinghua XU, Tiantian WANG, Qianyong CHEN, Shuyou ZHANG, Jianrong TAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 24-42 doi: 10.1007/s11465-019-0558-6

Abstract: semiconductor industries, are being developed with high operating elasticity under variable working conditionsand energy conservation laws, the piecewise-lumped parameters are extracted under variable working conditionsexchangers, and packing column of a 100000 Nm O /h large-scale ASU is enhanced to adapt to variable working conditions

Keywords： performance design     air separation unit (ASU)     lumped parameter model (LPM)     variable working conditions    

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Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1331-1348 doi: 10.1007/s11709-020-0686-4

Abstract: This article proposes a novel methodology that uses mathematical and numerical models of a structure to build a data set and determine crucial nodes that possess the highest sensitivity. Regression surfaces between the structural parameters and structural output features, represented by the natural frequencies of the structure and local transmissibility, are built using the numerical data set. A description of a possible experimental application is provided, where sensors are mounted at crucial nodes, and the natural frequencies and local transmissibility at each natural frequency are determined from the power spectral density and the power spectral density ratios of the sensor responses, respectively. An inverse iterative process is then applied to identify the structural parameters by matching the experimental features with the available parameters in the myriad numerical data set. Three examples are presented to demonstrate the feasibility and efficacy of the proposed methodology. The results reveal that the method was able to accurately identify the boundary coefficients and physical parameters of the Euler-Bernoulli beam as well as a highway bridge model with elastic foundations using only two measurement points. It is expected that the proposed method will have practical applications in the identification and analysis of restored structural systems with unknown parameters and boundary coefficients.

Keywords： structural model validation     eigenvalue problem     response surface     inverse problems    

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Recent developments in passive interconnected vehicle suspension

Wade A. SMITH, Nong ZHANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 1-18 doi: 10.1007/s11465-009-0092-z

Abstract: A finite-element-method-based approddach for modelling the transient dynamics of an HIS vehicle is also

Keywords： interconnected suspensions     rollover prevention     vehicle dynamics     ride comfort     multibody system dynamics    

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Research on Battery-aware Dynamic Voltage Scaling Policy

Xu Shen,Hu Chen

Strategic Study of CAE 2008, Volume 10, Issue 2,   Pages 79-85

Abstract: T o deal with the shortcoming of the existing battery-aware DVS policy, the idle time distribution adjustment

Keywords： battery optimization     dynamic voltage scaling     adjustment of idle time distribution    

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Mechanical and Vehicle Engineering Front 2023

Mechanical and Vehicle Engineering Project Team

Engineering Fronts 2023, Volume 7, Issue 1,   Pages 7-34

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of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature conditions—A

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0844-z

Abstract: The bioactivity was enhanced by preozonation under low temperature conditions.Temperature and nutrients are the dominant factors in external conditions to influence the biological

Keywords： Preozonation     BAC filtration     High ammonia level     Bacterial activity     Microbial community structure     Pilot scale study    

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Accelerate Formulating the Technology Strategy of Intelligent Manufacturing Suited to the National Conditions

Yan Jianlin, Dong Jingchen, Gu Yishana, Yang Xiaoying

Strategic Study of CAE 2018, Volume 20, Issue 4,   Pages 9-12 doi: 10.15302/J-SSCAE-2018.04.002

Abstract: development strategy for the intelligent manufacturing technology suitable for China’s national conditions

Keywords： China’s national conditions     intelligent manufacturing     technological strategy    

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Title Author Date Type Operation

Emission components characteristics of a bi-fuel vehicle at idling condition

Sameh M. METWALLEY, Shawki A. ABOUEL-SEOUD, Abdelfattah M. FARAHAT

Journal Article

Accelerated life-time test of MEA durability under vehicle operating conditions in PEM fuel cell

Tian TIAN, Jianjun TANG, Wei GUO, Mu PAN

Journal Article

Changes of ecological conditions induced by rock tunneling in Laoshan Mountain area

LI Xiaozhao, ZHAO Xiaobao, WANG Zhongsheng

Journal Article

Assessing artificial neural network performance for predicting interlayer conditions and layer modulus

Lingyun YOU, Kezhen YAN, Nengyuan LIU

Journal Article

Influence of initial curing conditions and exposure environments on chloride migration in concrete using

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Journal Article

Long March 3 Series Launch Vehicle

Long Lehao

Journal Article

Boundary conditions for axisymmetric piezoelectric cylinder

Baosheng ZHAO, Di WU, Xi CHEN

Journal Article

Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Journal Article

Performance design of a cryogenic air separation unit for variable working conditions using the lumped

Jinghua XU, Tiantian WANG, Qianyong CHEN, Shuyou ZHANG, Jianrong TAN

Journal Article

Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Journal Article

Recent developments in passive interconnected vehicle suspension

Wade A. SMITH, Nong ZHANG,

Journal Article

Research on Battery-aware Dynamic Voltage Scaling Policy

Xu Shen,Hu Chen

Journal Article

Mechanical and Vehicle Engineering Front 2023

Mechanical and Vehicle Engineering Project Team

Journal Article

of preozonation on the bioactivity and biodiversity of subsequent biofilters under low temperature conditions—A

Jiaxuan YANG, Jun MA, Dan SONG, Xuedong ZHAI, Xiujuan KONG

Journal Article

Accelerate Formulating the Technology Strategy of Intelligent Manufacturing Suited to the National Conditions

Yan Jianlin, Dong Jingchen, Gu Yishana, Yang Xiaoying

Journal Article