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Practical evaluation for water utilities in China by using analytic hierarchy process

Hong CHEN,Feng XIAO,Zhe BI,Ping XIAO,Dongsheng WANG,Ming YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 131-137 doi: 10.1007/s11783-014-0718-1

Abstract: The risk of water utilities would include the water quality failure and the water quantity failure, fromThe hierarchical structure of the water utilities was established in terms of the fault event analysisfrom the past failure accidents.will improve and play a more and more active role in the development of the risk management in China water

Keywords： analytic hierarchy process (AHP)     risk management     water quality failure     water quantity failure    

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Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0988-5

Abstract: A pilot project was conducted to evaluate the impact of rain gardens on the water quality and volumeThe likely reason for initial increase in monitored water quality parameters is that the post-constructionHowever, the levels of most of water quality parameters decreased in the following time period during

Keywords： Rain gardens     Bioretention     Combined sewer     Stormwater quality and quantity    

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Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 840-849 doi: 10.1007/s11783-015-0781-2

Abstract: In this study, nanoscale zero-valent iron (NZVI) were immobilized within a chelating resin (DOW 3N). To investigate the effect of Fe loading on NZVI reactivity, three NZVI-resin composites with different Fe loading were obtained by preparing Fe(III) solution in 0, 30 and 70% (v/v) ethanol aqueous, respectively; the bromate was used as a model contaminant. TEM reveals that increasing the Fe loading resulted in much larger size and poor dispersion of nanoscale iron particles. The results indicated that the removal efficiency of bromate and the rate constant ( ) were decreased with increasing the Fe loading. For the NZVI-resin composite with lower Fe loading, the removal efficiency of bromate declined more significantly with the increase of DO concentrations. Under acidic conditions, decreasing the pH value had the most significant influence on NZVI-R3 with highest Fe loading for bromate removal; however, under alkaline conditions, the most significant influence of pH was on NZVI-R1 with lowest Fe loading. The effects of co-existing anions , and were also investigated. All of the co-existing anions showed the inhibition to bromate reduction.

Keywords： nanoscale zero valent iron     loading quantity     reduction     chelating resin     bromated    

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Cryogenic minimum quantity lubrication machining: from mechanism to application

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 649-697 doi: 10.1007/s11465-021-0654-2

Abstract: Environmental machining technologies, such as dry cutting, minimum quantity lubrication (MQL), and cryogenicThe latest progress of cryogenic minimum quantity lubrication (CMQL) technology is reviewed in this paper

Keywords： cryogenic minimum quantity lubrication (CMQL)     cryogenic medium     processing mode     device application    

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Tribological mechanism of carbon group nanofluids on grinding interface under minimum quantity lubrication

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0733-z

Abstract: Carbon group nanofluids can further improve the friction-reducing and anti-wear properties of minimum quantity

Keywords： grinding     minimum quantity lubrication     carbon group nanofluid     tribological mechanism    

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On water security, sustainability, and the water-food-energy-climate nexus

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 626-639 doi: 10.1007/s11783-013-0548-6

Abstract: The role of water security in sustainable development and in the nexus of water, food, energy and climateinteractions is examined from the starting point of the definition of water security offered by Greywater development as a precursor of more general, self-sustaining, multi-sectoral development.This is consistent with the way in which water is treated as “first among equals”, i.e. privileged, inthinking about what is key in achieving security around the nexus of water, food, energy and climate

Keywords： cities as forces for good     diversity     energy and nutrient recovery     green economy     infrastructure failure    

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Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 85-100 doi: 10.1007/s11709-012-0159-5

Abstract: Authors focused this problem and hence performed model tests with water-inflow and drainage cycle inIn those studies, water was supplied into the model grounds from the defected underground pipe modelAs results, it was observed that the loosening area was generated from the defected part with water-inflowconcluded that the low relative density of soil would become the critical factor to cause the fatal failurecollapse of the ground with high relative density more than 80% would be avoided in a few cycles of water

Keywords： relative density     grain property     model test     road subsidence     underground pipe     image processing     X-ray CT    

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Failure mode investigation of fuel cell for vehicle application

Zhongjun HOU, Renfang WANG, Keyong WANG, Weiyu SHI, Danming XING, Hongchun JIANG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 318-325 doi: 10.1007/s11708-017-0488-0

Abstract: To improve the durability, it is necessary to optimize the fuel cell system (FCS) design against failureThe fuel cell durability research method at FCS scale was exhibited, and the failure modes of fuel cellthat the fuel cell dry operation, start/stop cycle and gas diffusion layer (GDL) flooding are typical failureAfter the modifications against the failure modes, the durability of FCSs is improved to over 3000 h

Keywords： proton exchange membrane fuel cell (PEMFC)     fuel cell system (FCS)     durability     failure mode     fuel cell vehicle(FCV)     carbon corrosion     water management    

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Integrated management of cardiac failure: the cardiac failure clinic

Daniel LOISANCE

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 20-25 doi: 10.1007/s11684-011-0106-1

Abstract:

The prevalence of the risk factors and the risk of cardiac failure are both increasing in China.The wide range of clinical presentations of cardiac failure (acute or chronic) and of therapeutic approaches

Keywords： cardiac failure     cardiac transplantation     mechanical circulatory support    

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Short-term prediction of the influent quantity time series of wastewater treatment plant based on a chaos

LI Xiaodong, ZENG Guangming, HUANG Guohe, LI Jianbing, JIANG Ru

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 334-338 doi: 10.1007/s11783-007-0057-6

Abstract: By predicting influent quantity, a wastewater treatment plant (WWTP) can be well controlled.The nonlinear dynamic characteristic of WWTP influent quantity time series was analyzed, with the assumptionBased on this, a short-term forecasting chaos neural network model of WWTP influent quantity was built

Keywords： nonlinear     reconstruction     WWTP influent     characteristic     Reasonable forecasting    

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Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 623-642 doi: 10.1007/s11709-021-0726-8

Abstract: In this study, gradual and sudden reduction methods were combined to simulate a progressive failure inUsing the presented method, a progressive failure is simulated based on a linear softening law priorto a catastrophic failure, and thereafter, sudden reduction methods are employed for modeling a progressivefailure.The proposed method is intended to predict the first ply failure (FPF), LPF, and dominant failure modes

Keywords： progressive failure     notched composite plate     Hashin failure criterion     macro mechanics approach     finite    

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Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering   Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: This study focuses on the bending failure performance of a shield tunnel segment.A full-scale test was conducted to investigate deformation and failure characteristics.During the loading, the bending failure process can be divided into four stages: the elastic stage, workingstage with cracks, failure stage, and ultimate stage.The characteristic loads between contiguous stages are the cracking, failure, and ultimate loads.

Keywords： shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

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New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 105-110 doi: 10.1007/s11709-009-0014-5

Abstract: A new form of geodetic coordinate system based on geodesic coordinates instead of geodetic longitude and latitude was proposed. The vertical and horizontal geodesic coordinates measured with length were defined as coordinate parameters, but the two families of coordinate curves were still meridians and parallel circles. The first fundamental form on the ellipsoidal surface and its three coefficients were deduced by the geodesic coordinate. The formula for the latitudinal scale factor of length for geodetic parallel lines was derived, by which the obtained result conformed to that standard value calculated from geodetic latitude, and it is applicable in the range of 400 km from north to south. Therefore, it lays the foundation for establishing the differential equation and differential relationship based on this type of coordinate parameters; and consequently, it is convenient and accurate enough to operate on the ellipsoidal surface in this new form of geodetic coordinate system.

Keywords： geodetic coordinate system     meridian and parallel circle     coordinate parameter     the first fundamental form on the ellipsoidal surface     latitudinal scale factor of length    

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Overview on acute-on-chronic liver failure

Jing Zhang,Shan Gao,Zhongping Duan,Ke-Qin Hu

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 1-17 doi: 10.1007/s11684-016-0439-x

Abstract:

Liver failure (LF) is defined as severe dysfunction in hepatic synthesis, detoxification, and metabolism

Keywords： liver failure     chronic liver failure     acute-on-chronic liver failure     diagnosis     prognosis     treatment    

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Surficial stability analysis of soil slope under seepage based on a novel failure mode

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 712-726 doi: 10.1007/s11709-021-0729-5

Abstract: Therefore, a novel failure mode involving three sliding zones (upper tension zone, middle shear slidingSubsequently, the new failure mode was verified via a numerical finite element analysis based on theThe results obtained by the new failure mode agree well with those obtained by the numerical analysis

Keywords： soil slope     seepage     surficial failure mode     stress state     edge effects    

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Title Author Date Type Operation

Practical evaluation for water utilities in China by using analytic hierarchy process

Hong CHEN,Feng XIAO,Zhe BI,Ping XIAO,Dongsheng WANG,Ming YANG

Journal Article

Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

Journal Article

Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Journal Article

Cryogenic minimum quantity lubrication machining: from mechanism to application

Journal Article

Tribological mechanism of carbon group nanofluids on grinding interface under minimum quantity lubrication

Journal Article

On water security, sustainability, and the water-food-energy-climate nexus

Michael Bruce BECK, Rodrigo VILLARROEL WALKER

Journal Article

Image analysis of soil failure on defective underground pipe due to cyclic water supply and drainage

Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI

Journal Article

Failure mode investigation of fuel cell for vehicle application

Zhongjun HOU, Renfang WANG, Keyong WANG, Weiyu SHI, Danming XING, Hongchun JIANG

Journal Article

Integrated management of cardiac failure: the cardiac failure clinic

Daniel LOISANCE

Journal Article

Short-term prediction of the influent quantity time series of wastewater treatment plant based on a chaos

LI Xiaodong, ZENG Guangming, HUANG Guohe, LI Jianbing, JIANG Ru

Journal Article

Progressive failure analysis of notched composite plate by utilizing macro mechanics approach

Journal Article

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Journal Article

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Journal Article

Overview on acute-on-chronic liver failure

Jing Zhang,Shan Gao,Zhongping Duan,Ke-Qin Hu

Journal Article

Surficial stability analysis of soil slope under seepage based on a novel failure mode

Journal Article