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Underlying mechanism of the hydrothermal instability of Cu

Nadeen Al-Janabi,Abdullatif Alfutimie,Flor R. Siperstein,Xiaolei Fan

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1, Pages 103-107 doi: 10.1007/s11705-015-1552-0

Abstract: Water induced decomposition of Cu (BTC) (BTC= benzene-1,3,5-tricarboxylate) metal-organic framework

Keywords： hydrothermal stability metal-organic framework (MOF) open metal sites (OMSs) dynamic water vapour adsorption

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Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2, Pages 159-187 doi: 10.1007/s11705-019-1885-1

Abstract: Metal-containing zeolite catalysts have found a wide range of applications in heterogeneous catalysisTo understand the nature of metal active sites and the reaction mechanism over such catalysts is of greatsummarize recent developments and applications of SSNMR for exploring the structure and property of active sitesin metal-containing zeolites.Finally, we highlight the mechanistic understanding of catalytic reactions on metal-containing zeolites

Keywords： metal-containing zeolites solid-state NMR active site host-guest interaction reaction mechanism

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An integrated optimization and simulation approach for air pollution control under uncertainty in open-pitmetal mine

Zunaira Asif, Zhi Chen

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1156-x

Abstract: Air Pollution Control model is developed for open-pit metal mines.Open-pit metal mines contribute toward air pollution and without effective control techniques manifestsThe applicability of the optimized model is explored through an open-pit metal mine case study, in North

Keywords： Air pollution Decision analysis Linear programming Mining Optimization Fuzzy Monte Carlo

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Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12, Pages 1772-1781 doi: 10.1007/s11705-022-2197-4

Abstract: magnetic-proximity-induced exchange splitting (spin polarization) that properly adjusts energy levels of the Fe sites

Keywords： CO₂ electrolysis single-atom catalysts spin polarization proton dynamics in situ IR spectroscopy kinetic isotope effect

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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: This paper studied the relationship between heavy metal concentrations of herbaceous plants and soilsat four Pb-Zn mining sites in Yunnan, China. 50 herbaceous plant samples of 9 plant species from 4 familiesHeterospecific plants at the same site and conspecific plants at various sites had different average

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

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Effect of noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a studyof active sites

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1986-2000 doi: 10.1007/s11705-023-2337-5

Abstract: On the active metal nanoparticle scale, the role of catalyst size in C–N bond cleavage has not been clearlyDifferent concentrations of terrace, step, and corner sites were found in different sizes of Ru nanoparticlesThis analysis indicates that the variation of different sites on the catalyst is the intrinsic factorof the size dependence of C–N bond cleavage activity, and the step atoms are the active sites for theThe role of step sites in C–N bond cleavage was proposed using the density function theory calculations

Keywords： sp³/sp²-hybridized C–N bond noble metal nanoparticle catalytic active site turnover

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metals, polybrominated diphenyl ethers, and polychlorinated dibenzo-dioxins/furans at e-waste recycling sites

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1679-z

Abstract:

● Heavy metals and organic toxins may persist in legacy sites for a

Keywords： E-waste Human health risk Organ risk Heavy metal toxicity PBDE PCDD/F

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Dual-functional sites for synergistic adsorption of Cr(VI) and Sb(V) by polyaniline-TiO hydrate: Adsorptionbehaviors, sites and mechanisms

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1526-7

Abstract:

• PANI/Ti(OH)_n⁽⁴^–ⁿ⁾⁺ exhibited excellent adsorption capacity and reusability.

Keywords： Polyaniline/TiO₂ Chromium Antimony Adsorption Desorption Mechanism

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Evaluation of the wind energy potential of two south west sites in Nigeria

Olaleye M. AMOO

Frontiers in Energy 2012, Volume 6, Issue 3, Pages 237-246 doi: 10.1007/s11708-012-0201-2

Abstract: wind energy potential of Abeokuta (07°03'N, 03°19'E) and Ijebu-Ode (06°47'N, 03°58'E), two south west sitesIjebu-Ode was found to be the better of the two sites in terms of annual variation of mean wind speed

Keywords： wind potential wind speed wind power density wind gust turbulence intensity Nigeria

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Design and analyses of open-ended pipe piles in cohesionless soils

Yuan GUO,Xiong (Bill) YU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 22-29 doi: 10.1007/s11709-016-0314-5

Abstract: Large open-ended pipe pile has been found to be advantageous for use in transportation projects.To close this practice gap, this paper first summarized different design methods for open-ended pipe

Keywords： open-ended pipe pile soil plug DEM base capacity

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Microwave-induced high-energy sites and targeted energy transition promising for efficient energy deployment

Frontiers in Energy 2022, Volume 16, Issue 6, Pages 931-942 doi: 10.1007/s11708-021-0771-y

Abstract: Meanwhile, the dispersed microwave field energy concentrated in small sites, where local temperaturesIn particular, the discharge intensity, frequency, and high-energy sites were strengthened through thefabrication of sharp nano/microstructures, conferring twice the energy efficiency of untreated metalThe microwave-induced high-energy sites and targeted energy transition provide an important pathway for

Keywords： microwave discharge high-energy sites targeted-energy transition morphology design energy efficiency

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Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9, Pages 1071-1088 doi: 10.1007/s11709-022-0879-0

Abstract: For open car park structures, adopting a performance-based structural fire design is often justifiedThis paper describes a numerical study on the thermal exposure on steel framing members in open car park

Keywords： open car park localized fire steel frame numerical modeling computational fluid dynamics

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Scale study of sites and pavilions for World Expo 2010

ZHOU Zhuoyan, CHEN Yi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1, Pages 102-106 doi: 10.1007/s11709-008-0012-z

Abstract: The scale of sites and pavilions for World Expo 2010 (Shanghai World Expo) mainly refers to the study

Keywords： pavilion study number appropriate design

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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 147-152 doi: 10.1007/s11465-009-0025-x

Abstract: The paper deals with the design and implementation of an open architecture CNC system for the NFPCM,Further, the paper develops the program and sets up the open and module NC system.

Keywords： flame pipe cutting flame incision tracks CNC open architecture CNC system

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Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Frontiers in Energy 2008, Volume 2, Issue 1, Pages 31-35 doi: 10.1007/s11708-008-0011-8

Abstract: Cavitation in miniature pumps was investigated experimentally for two semi-open centrifugal impellerssimilar cavitation performances as an ordinary-size pump, with the cavitation performance of the semi-openAlso, both the hydraulic and cavitation performance of the semi-open impeller were improved by the leaned

Keywords： cavitation performance semi-open impeller increased two-dimensional efficiency