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Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment: A comprehensive loading frequency-based approach

Huailei CHENG; Liping LIU; Lijun SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 267-280 doi: 10.1007/s11709-022-0811-7

Abstract: falling weight deflectometer (FWD) loading modes, and the laboratory ones are uniaxial compressive (UC), indirect tensile (IDT), and four-point bending (4PB) loading modes.It is found that the moduli obtained via laboratory 4PB tests are pretty close to those of vehicularloading schemes, in contrast to those derived in UC, IDT, and FWD modes, which need to be adjusted.

Keywords： asphalt mixture layer     stiffness modulus     loading mode     UC/4PB/IDT     FWD     frequency    

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Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 215-218 doi: 10.1007/s11705-009-0055-2

Abstract: To facilitate the recovery of Pb/SiO catalyst, magnetic Pb/Fe O /SiO samples were prepared separatelyWhen the gelatin was applied in the preparation of Fe O at 60°C and the pH value was controlled at 4in the preparation of Fe O /SiO , the Pb/Fe O /SiO sample shows good catalytic activity and magnetismof 180°C, reaction time of 2 h, catalyst percentage of 1.7 wt-% and a molar ratio of urea to PG of 1∶4,

Keywords： Pb/Fe3O4/SiO2 magnetic particle     urea     1     2-propylene glycol     propylene    

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Co-present Pb(II) accelerates the oxidation of organic contaminants by permanganate: Role of Pb(III)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1530-y

Abstract:

• Simultaneous removal of organic contaminants and Pb(II) was achieved

Keywords： Permanganate     Pb(II) oxidation     MnO2     pH effect    

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Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 82-87

Abstract: paper, the 2-D analytical models for the surface electrical field and temperature distributions of PB-PSOIthickness and the length of the buried oxide have been proposed to achieve the high performance of PB-PSOI

Keywords： PB-PSOI     surface electrical field     temperature distribution     buried oxide    

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Cultivars and oil extraction techniques affect Cd/Pb contents and health risks in oil of rapeseed grownon Cd/Pb-contaminated farmland

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1687-z

Abstract:

● Organic solvent extracted fewer Cd/Pb in rapeseed oil than physical

Keywords： Rapeseed oil     Oil extraction technologies     Human health risk assessment     Cd/Pb-contaminated farmland    

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Relationship between heavy metal concentrations of herbaceous plants and soils at four Pb-Zn mining sites

Yuan LI , Yanqun ZU , Qixian FANG , Zhaohua GAO , Christian SCHVARTZ ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 325-333 doi: 10.1007/s11783-009-0024-5

Abstract: studied the relationship between heavy metal concentrations of herbaceous plants and soils at four Pb-Znmining sites in Yunnan, China. 50 herbaceous plant samples of 9 plant species from 4 families and 50soil samples were collected and then ana1yzed for the tota1 concentrations of Pb, Cd, and Zn.The average concentrations of Pb, Cd, and Zn were 395.68, 28.14, and 1664.20 mg/kg in the shootsEnrichment coefficients of Pb, Cd, and Zn were greater than 1 in 2, 3, and 9 herbaceous plant samples

Keywords： Pb     Cd     Zn     herbaceous plants     Pb-Zn mining areas     enrichment coefficient     translocation factor    

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Electrodeposited porous Pb electrode with improved electrocatalytic performance for the electroreduction

Jing WANG, Hua WANG, Zhenzhen HAN, Jinyu HAN

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 57-63 doi: 10.1007/s11705-014-1444-8

Abstract: A porous Pb foam was fabricated electrochemically at a copper substrate and then used as the cathodeThe surface morphology and composition of the porous Pb electrode was characterized by scanning electronThe honeycomb-like porous structure was composed of needle-like Pb deposits.Cyclic voltammetry studies demonstrated that the porous Pb electrode had better electrocatalytic performancefor the formation of formic acid from CO compared with a Pb plate electrode.

Keywords： electrodeposited porous Pb     carbon dioxide     electroreduction     formic acid    

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Efficient removal of Cr(VI) and Pb(II) from aqueous solution by magnetic nitrogen-doped carbon

Wanyue Liu, Xiaoqin Liu, Jinming Chang, Feng Jiang, Shishi Pang, Hejun Gao, Yunwen Liao, Sheng Yu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1185-1196 doi: 10.1007/s11705-020-2032-8

Abstract: The capacity of MNC to adsorb Cr(VI) and Pb(II) was evaluated.The maximum Cr(VI)-adsorption capacity and maximum Pb(II) adsorption capacity of MNC could reach 456.63

Keywords： magnetic     nitrogen-doped carbon     adsorption     Cr(VI)     Pb(II)    

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Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 250-258 doi: 10.1007/s11783-014-0643-3

Abstract: in ( ) and the response of root exudates to Pb addition.The results showed that: 1) Pb contents in the shoot and root of increased with increasing in Pb concentrationsin solution. 2) The contents of Pb chemical forms under Pb addition followed as: HAc extractable fractionin FIV (Fraction IV, soluble fraction) in shoots and FI (Fraction I, cell wall fraction) in roots. 4)of to Pb.

Keywords： Pb     Arenaria orbiculata     chemical forms     subcellular distribution     root exudates     hydroponic culture    

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The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1423-1429 doi: 10.1007/s11705-023-2315-y

Abstract: Similar to Sn, Pb located at the same group (IVA) in the periodic table of elements, can also catalyzestability, the traditional carrier Al2O3 with a small amount, was introduced into Pbsub>2O3 can inhibit the reduction of PbO, and weaken the agglomeration and loss of Pbspecies due to its enhanced interaction with Pb species.As a result, 3Al15Pb/SiO2 catalyst exhibits a much higher stability up to more than 150 h.

Keywords： Pb/SiO2     Al2O3     propane dehydrogenation     propene     stability    

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Comparing the adsorption behaviors of Cd, Cu and Pb from water onto Fe-Mn binary oxide, MnO

Wei XU,Huachun LAN,Hongjie WANG,Hongming LIU,Jiuhui QU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 385-393 doi: 10.1007/s11783-014-0648-y

Abstract: The adsorption potential of FMBO, FeOOH, MnO for the removal of Cd , Cu and Pb in aqueous systemsThe maximal adsorption capacity of MnO for Cd , Cu and Pb were 1.23, 2.25 and 2.60 mmol·g , respectively

Keywords： heavy metals     Fe-Mn binary oxide     manganese dioxide     ferric hydroxide     adsorption    

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Preparation of a Pb loaded gas diffusion electrode and its application to CO

Ang LI, Hua WANG, Jinyu HAN, Li LIU

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 381-388 doi: 10.1007/s11705-012-1216-2

Abstract: A Pb loaded gas diffusion electrode was fabricated and used for the electroreduction of CO to formicThe Pb/C catalyst was prepared by isometric impregnation.The crystal structure and morphology of the Pb/C catalyst were characterized by X-ray diffraction (XRD

Keywords： electroreduction     carbon dioxide     lead catalyst     gas diffusion electrode     formic acid    

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Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1493-4

Abstract:

• A two-compartment model is able to quantify the effect of nano-TiO2 on Pb

Keywords： Algae     C. dubia     Lead     Nano-TiO2     Synergistic toxicity     Two-compartment toxicokinetic-toxicodynamic model    

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Speciation evolutions of target metals (Cd, Pb) influenced by chlorine and sulfur during sewage sludge

Jingde LUAN,Rundong LI,Zhihui ZHANG,Yanlong LI,Yun ZHAO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 871-876 doi: 10.1007/s11783-013-0621-1

Abstract: Moreover, about 9% of Pb with COM fraction disappeared when there was an increase of nearly 10% in the

Keywords： sludge incineration     heavy metals     inner speciation redistribution     binding energy    

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An extraction- assay system: Evaluation on flavonols in plant resistance to Pb and Cd by supercritical

Xu Zhang, Huanhuan Yang, Xinlei Wang, Wen Song, Zhaojie Cui

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 4, doi: 10.1007/s11783-018-1059-2

Abstract:

SFE-GC system is established for flavonols assessment.

Optimal parameters of SFE-GC are evaluated and determined.

Quercetin and kaempferol are detected in plant under heavy metal stress.

Gene expression analysis shows consistent regularity with content of flavonols.

ROS level is applied for elaborating the plant resistance status.

Keywords： Flavonols     Heavy metal     Supercritical carbon dioxide extraction (SFE)     GC     Plant resistance    

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Title Author Date Type Operation

Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment: A comprehensive loading frequency-based approach

Huailei CHENG; Liping LIU; Lijun SUN

Journal Article

Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Journal Article

Co-present Pb(II) accelerates the oxidation of organic contaminants by permanganate: Role of Pb(III)

Journal Article

Analytical models for the surface electrical field and temperature distributions of novel PB-PSOI devices

Sun Weifeng,Gao Shan,Lu Shengli, Chen Junning

Journal Article

Cultivars and oil extraction techniques affect Cd/Pb contents and health risks in oil of rapeseed grownon Cd/Pb-contaminated farmland

Journal Article

Relationship between heavy metal concentrations of herbaceous plants and soils at four Pb-Zn mining sites

Yuan LI , Yanqun ZU , Qixian FANG , Zhaohua GAO , Christian SCHVARTZ ,

Journal Article

Electrodeposited porous Pb electrode with improved electrocatalytic performance for the electroreduction

Jing WANG, Hua WANG, Zhenzhen HAN, Jinyu HAN

Journal Article

Efficient removal of Cr(VI) and Pb(II) from aqueous solution by magnetic nitrogen-doped carbon

Wanyue Liu, Xiaoqin Liu, Jinming Chang, Feng Jiang, Shishi Pang, Hejun Gao, Yunwen Liao, Sheng Yu

Journal Article

Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Journal Article

The stabilization effect of Al2O3 on unconventional Pb/SiO2 catalyst

Journal Article

Comparing the adsorption behaviors of Cd, Cu and Pb from water onto Fe-Mn binary oxide, MnO

Wei XU,Huachun LAN,Hongjie WANG,Hongming LIU,Jiuhui QU

Journal Article

Preparation of a Pb loaded gas diffusion electrode and its application to CO

Ang LI, Hua WANG, Jinyu HAN, Li LIU

Journal Article

Understanding the role of nano-TiO on the toxicity of Pb on through modeling–Is it additive or synergistic

Journal Article

Speciation evolutions of target metals (Cd, Pb) influenced by chlorine and sulfur during sewage sludge

Jingde LUAN,Rundong LI,Zhihui ZHANG,Yanlong LI,Yun ZHAO

Journal Article

An extraction- assay system: Evaluation on flavonols in plant resistance to Pb and Cd by supercritical

Xu Zhang, Huanhuan Yang, Xinlei Wang, Wen Song, Zhaojie Cui

Journal Article