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Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements

Ibrahim ONIFADE, Yared DINEGDAE, Björn BIRGISSON

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 257-269 doi: 10.1007/s11709-017-0410-1

Abstract: In this paper, a hierarchical approach is proposed for the evaluation of fatigue cracking in asphaltBased on the developed hierarchical approach, three damage computation levels are identified and proposedThe hierarchical approach also provides a systematic approach for the understanding of the fundamental

Keywords： fatigue cracking     energy based     crack initiation     mechanistic approach     pavement analysis    

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Evaluation of 1,4-naphthoquinone derivatives as antibacterial agents: activity and mechanistic studies

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1631-2

Abstract:

● All 1,4-naphthoquinone hybrids exhibited significant antimicrobial activity.

Keywords： 1     4-naphthoquinone derivatives     Antibacterial     Action mechanism     RecA    

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Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1701-5

Abstract:

● TiO2/ZSM-11 was prepared by a facile solid state dispersion method.

Keywords： Selective dye degradation     Photocatalysis     TiO2     ZSM-11     Chemisorption    

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Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1879-1894 doi: 10.1007/s11705-023-2354-4

Abstract: systematically discussed the halogen-free catalysis for cycloaddition of CO2 with epoxides from the mechanistic

Keywords： carbon dioxide     halogen-free catalysis     cyclic carbonate     mechanistic insight    

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Improved film evaporator for mechanistic understanding of microwave-induced separation process

Xin Gao, Dandan Shu, Xingang Li, Hong Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 759-771 doi: 10.1007/s11705-019-1816-1

Abstract: Microwave-induced film evaporation separation process has been reported recently to separate the polar/nonpolar mixture. However, the efficiency of the separation is still too low for practical applications, which requires further enhancement via different strategies such as optimization design of evaporator structure. In addition the depth understanding of the separation mechanisms is great importance for better utilization of the microwave-induced separation process. To carry out these investigations, a novel microwave-induced falling film evaporation instrument was developed in this paper. The improvement of the enhancement effect of microwave-induced separation was observed based on the improved film evaporator. The systematic experiments on microwave-induced separation with different binary azeotropic mixtures (ethanol-ethyl acetate system and dimethyl carbonate (DMC)-H O system) were conducted based on the new evaporator. For the ethanol-ethyl acetate system, microwave irradiation shift the direction of evaporation separation at higher ethanol content in the starting liquid mixture. Moreover, for DMC-H O system microwave-induced separation process broke through the limitations of the traditional distillation process. The results clearly demonstrated the microwave-induced evaporation separation process could be commendably applied to the separation of binary azeotrope with different dielectric properties. Effects of operating parameters are also investigated to trigger further mechanism understanding on the microwave-induced separation process.

Keywords： process intensification     microwave     falling film evaporation     separation     azeotrope    

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doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction mechanistic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-022-1539-2

Abstract:

• CeO2 doping significantly improved low-temperature NH3-SCR activity on FeTiOx.

Keywords： NH3-SCR     CeO2 doping     Low-temperature NOx removal     Improved redox property     In situ XAFS analysis    

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EDTA-intercalated layered double hydroxide for enhanced recovery of Cr(VI) and Congo red: Adsorptive and mechanistic

Jing Li, Haiqin Yu, Xue Zhang, Rixin Zhu, Liangguo Yan

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1229-x

Abstract: Functional groups of AM and EDTA in composite increased removal of Cr(VI) and CR. Removal process reached equilibrium within 30 min and was minimally affected by pH. Elimination of Cr(VI) was promoted by coexisting CR. Adsorption process of CR was less influenced by the presence of Cr(VI). Mechanisms were electrostatic attraction, surface complexation and anion exchange. We prepared ethylenediaminetetraacetic acid (EDTA)-intercalated MgAl-layered double hydroxide (LDH-EDTA), then grafted acrylamide (AM) to the LDH-EDTA by a cross-linking method to yield a LDH-EDTA-AM composite; we then evaluated its adsorptive ability for Congo red (CR) and hexavalent chromium (Cr(VI)) in single and binary adsorption systems. The adsorption process on LDH-EDTA-AM for CR and Cr(VI) achieved equilibrium quickly, and the removal efficiencies were minimally affected by initial pH. The maximum uptake quantities of CR and Cr(VI) on LDH-EDTA-AM were 632.9 and 48.47 mg/g, respectively. In mixed systems, chromate removal was stimulated by the presence of CR, while the adsorption efficiency of CR was almost not influenced by coexisting Cr(VI). The mechanisms involved electrostatic attraction, surface complexation, and anion exchange for the adsorption of both hazardous pollutants. In the Cr(VI) adsorption process, reduction also took place. The removal efficiencies in real contaminated water were all higher than those in the laboratory solutions.

Keywords： Chromate     Dye adsorption     Simultaneous removal     Cross-linking method     Amino functionalization    

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Performance and mechanistic study on electrocoagulation process for municipal wastewater treatment based

Zhenlian Qi, Shijie You, Ranbin Liu, C. Joon Chuah

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1215-3

Abstract: EC modified with BPEs enhances pollutant removal and reduce energy consumption. Increasing BPE number cannot increase flocculants yield exponentially. Simulations help to predict the distribution of electrochemical reactions on BPEs. The design of electrodes is crucial to electrocoagulation process (EC), specifically, with respect to pollutant removal and energy consumption. During EC, the mechanisms for interaction between different electrode arrangement and electrode reactions remain unclear. This work presents an integrated EC process based on horizontal bipolar electrodes (BPEs). In the electrochemical cell, the graphite plates are used as driving cathode while either Fe or Al plates serves as driving anode and BPEs. The BPEs are placed horizontally between the driving electrodes. For municipal wastewater treatment, the pollutant removal efficiency and energy consumption in different configurations of two-dimension electrocoagulation (2D-EC) system with horizontal BPEs were investigated. The removal efficiency of turbidity, total phosphorus and total organic carbon increased significantly with the number of BPEs. Noted that the energy consumption for TP removal decreased by 75.2% with Fe driving anode and 81.5% with Al driving anode than those of 2D-EC, respectively. In addition, the physical field simulation suggested the distributions of potential and current in electrolyte and that of induced charge density on BPE surface. This work provides a visual theoretical guidance to predict the distribution of reactions on BPEs for enhanced pollutant removal and energy saving based on electrocoagulation process for municipal wastewater treatment.

Keywords： Electrocoagulation     Bipolar electrodes     Municipal wastewater     Simulations    

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Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1586-8

Abstract:

● nZVI, S-nZVI, and nFeS were systematically compared for Cd(II) removal.

Keywords： Nano zero valent iron     Sulfided zero valent iron     FeS     Cd(II) immobilization     Fe dissolution    

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Mechanistic and therapeutic advances in non-alcoholic fatty liver disease by targeting the gut microbiota

Ruiting Han, Junli Ma, Houkai Li

Frontiers of Medicine 2018, Volume 12, Issue 6,   Pages 645-657 doi: 10.1007/s11684-018-0645-9

Abstract: Non-alcoholic fatty liver disease (NAFLD) is one of the most common metabolic diseases currently in the context of obesity worldwide, which contains a spectrum of chronic liver diseases, including hepatic steatosis, non-alcoholic steatohepatitis and hepatic carcinoma. In addition to the classical “Two-hit” theory, NAFLD has been recognized as a typical gut microbiota-related disease because of the intricate role of gut microbiota in maintaining human health and disease formation. Moreover, gut microbiota is even regarded as a “metabolic organ” that play complementary roles to that of liver in many aspects. The mechanisms underlying gut microbiota-mediated development of NAFLD include modulation of host energy metabolism, insulin sensitivity, and bile acid and choline metabolism. As a result, gut microbiota have been emerging as a novel therapeutic target for NAFLD by manipulating it in various ways, including probiotics, prebiotics, synbiotics, antibiotics, fecal microbiota transplantation, and herbal components. In this review, we summarized the most recent advances in gut microbiota-mediated mechanisms, as well as gut microbiota-targeted therapies on NAFLD.

Keywords： gut microbiota     NAFLD     obesity     insulin resistance     bile acids     probiotic    

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Design Method and Numerical Control Machining Principle for an Arbitrary n-polygon Noncircular Section

WU Yi-jie, LENG Hong-bin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 71-75 doi: 10.1007/s11465-005-0005-8

Abstract: Based on the mechanistic transmission principle, the control theorems for the numerical control (NC)

Keywords： manufacture     multicoordinate     characteristic     polygonal noncircular     mechanistic transmission    

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TRANSLATING THE MULTI-ACTOR APPROACH TO RESEARCH INTO PRACTICE USING A WORKSHOP APPROACH FOCUSING ON

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 460-473 doi: 10.15302/J-FASE-2021416

Abstract:

The EIP-Agri multiactor approach was exemplified during a 3-day workshop with 63 project participantsfirsthand experience of participatory research among researchers who were mostly not familiar with this approacha common understanding of the pertinent issues that need to be addressed to meet overall multiactor-approach

Keywords： agroecology     codesign     intercropping     knowledge sharing     participatory methods    

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Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1494-3

Abstract:

• A Passive Aeration Ditch was developed to treat decentralized wastewater.

Keywords： Decentralized wastewater     Passive aeration ditch     Biofilm formation     C/N ratio     Salinity     Model simulation    

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Governance approach to China’s environmental challenges: Towards a theoretical synthesis

QI Ye, XUE Lan, ZHANG Lingyun

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 385-400 doi: 10.1007/s11783-007-0066-5

Abstract: It documented the shift of approach from regulation to governance, and attempted to provide a comprehensive

Keywords： environmental governance     approach     temporal     regulation     various    

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Comparison of surgical indications for hysterectomy by age and approach in 4653 Chinese women

Jingjing Jiang,Ting Ding,Aiyue Luo,Yunping Lu,Ding Ma,Shixuan Wang

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 464-470 doi: 10.1007/s11684-014-0338-y

Abstract: The abdominal surgical approach was used in 84% of all hysterectomies.Surgeries using the vaginal approach required a significantly shorter operating time (118 min averageof both operating time and the amount of bleeding and blood transfusion volume required, the vaginal approach

Keywords： hysterectomy     surgical indications     surgical approach     bilateral oophorectomy    

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Title Author Date Type Operation

Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements

Ibrahim ONIFADE, Yared DINEGDAE, Björn BIRGISSON

Journal Article

Evaluation of 1,4-naphthoquinone derivatives as antibacterial agents: activity and mechanistic studies

Journal Article

Mechanistic insights into the selective photocatalytic degradation of dyes over TiO/ZSM-11

Journal Article

Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Journal Article

Improved film evaporator for mechanistic understanding of microwave-induced separation process

Xin Gao, Dandan Shu, Xingang Li, Hong Li

Journal Article

doping boosted low-temperature NH-SCR activity of FeTiO catalyst: A microstructure analysis and reaction mechanistic

Journal Article

EDTA-intercalated layered double hydroxide for enhanced recovery of Cr(VI) and Congo red: Adsorptive and mechanistic

Jing Li, Haiqin Yu, Xue Zhang, Rixin Zhu, Liangguo Yan

Journal Article

Performance and mechanistic study on electrocoagulation process for municipal wastewater treatment based

Zhenlian Qi, Shijie You, Ranbin Liu, C. Joon Chuah

Journal Article

Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles of

Journal Article

Mechanistic and therapeutic advances in non-alcoholic fatty liver disease by targeting the gut microbiota

Ruiting Han, Junli Ma, Houkai Li

Journal Article

Design Method and Numerical Control Machining Principle for an Arbitrary n-polygon Noncircular Section

WU Yi-jie, LENG Hong-bin

Journal Article

TRANSLATING THE MULTI-ACTOR APPROACH TO RESEARCH INTO PRACTICE USING A WORKSHOP APPROACH FOCUSING ON

Journal Article

Mechanistic insight into the biofilm formation and process performance of a passive aeration ditch (PAD

Journal Article

Governance approach to China’s environmental challenges: Towards a theoretical synthesis

QI Ye, XUE Lan, ZHANG Lingyun

Journal Article

Comparison of surgical indications for hysterectomy by age and approach in 4653 Chinese women

Jingjing Jiang,Ting Ding,Aiyue Luo,Yunping Lu,Ding Ma,Shixuan Wang

Journal Article