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Sustainable urban transportation development in China: A behavioral perspective

Frontiers of Engineering Management 2022, Volume 9, Issue 1,   Pages 16-30 doi: 10.1007/s42524-021-0162-4

Abstract: Such requirement presents challenges in sustainable urban transportation.The analysis and understanding of transportation-related behaviors provide one approach to dealing withcomplicated transportation activities.Then, several special cases from the perspective of behavior, including purchasing behaviors toward newenergy vehicles, choice behaviors toward green travel, and behavioral reactions toward transportation

Keywords： sustainable urban transportation     transportation behaviors    

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Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1390-x

Abstract:

•PSBF performed better than PAC and PAM in CODCr removals.

Keywords： Practical wastewater treatment     Commercial coagulant/flocculant     Secondary coagulation-flocculation process     Chemical oxygen demand     Coagulation-flocculation mechanism    

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Future urban transport management

Frontiers of Engineering Management   Pages 534-539 doi: 10.1007/s42524-023-0255-3

Abstract: The incorporation of disruptive innovations into the transportation industry will inevitably cause majorupheavals in the transportation sector.

Keywords： future urban transport management     travel behavior characteristics     transportation operations     transportationemergency management     transportation decision intelligence    

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Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 227-239 doi: 10.1007/s11684-021-0896-8

Abstract: Chronic stress impairs radial neural stem cell (rNSC) differentiation and adult hippocampal neurogenesis (AHN), whereas promoting AHN can increase stress resilience against depression. Therefore, investigating the mechanism of neural differentiation and AHN is of great importance for developing antidepressant drugs. The nonpsychoactive phytocannabinoid cannabidiol (CBD) has been shown to be effective against depression. However, whether CBD can modulate rNSC differentiation and hippocampal neurogenesis is unknown. Here, by using the chronic restraint stress (CRS) mouse model, we showed that hippocampal rNSCs mostly differentiated into astrocytes under stress conditions. Moreover, transcriptome analysis revealed that the FoxO signaling pathway was involved in the regulation of this process. The administration of CBD rescued depressive-like symptoms in CRS mice and prevented rNSCs overactivation and differentiation into astrocyte, which was partly mediated by the modulation of the FoxO signaling pathway. These results revealed a previously unknown neural mechanism for neural differentiation and AHN in depression and provided mechanistic insights into the antidepressive effects of CBD.

Keywords： cannabidiol     depression     radial neural stem cells     neurogenesis    

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Thermal defluorination behaviors of PFOS, PFOA and PFBS during regeneration of activated carbon by molten

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1524-9

Abstract:

• New method of mineralizing PFCs was proposed.

Keywords： PFCs     Molten sodium hydroxide     Thermal degradation     Activated carbon regeneration    

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Behaviors of EHD Traction Characteristics for High-speed Lubricating Grease

Yang Boyuan,Zheng Peibin,Su Bing,Wu Yongjun,Deng Sier

Strategic Study of CAE 2002, Volume 4, Issue 4,   Pages 75-78

Abstract:

The study on traction behaviors of lubricants which have great influences on dynamic properties of

Keywords： EHD lubrication     traction test     traction behaviors    

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CFD simulation of jet behaviors in a binary gas-solid fluidized bed: comparisons with experiments

Pei PEI, Guiying WU, Bangting YU, Kai ZHANG, Jianchun JIANG, Dongsheng WEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 242-249 doi: 10.1007/s11705-009-0277-3

Abstract: introducing the average physical properties from Goossens et al.(1971), can be used to predict the jet behaviors

Keywords： mathematical     two-dimensional     flotsam-on-jetsam     fluidization velocity     physical    

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Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 305-315 doi: 10.1007/s11783-014-0647-z

Abstract: In summary, surfactants affect the microbiological interfacial behaviors of HOCs during three consecutive

Keywords： biodegradation     sorption     transmembrane transport     microbiological interfaces     surfactants    

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Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 341-346 doi: 10.1007/s11465-010-0096-8

Abstract: This paper presents experimental and modeling study of creep and recovery behaviors of magneto-rheologicalThe effects of the magnetic field and stress on MRE creep behaviors were discussed.Moreover, a four-parameter viscoelastic model was developed to describe MRE creep behaviors.the experimental results and the modeling predictions indicates that the model can predict MRE creep behaviors

Keywords： magneto-rheological elastomers (MREs)     creep     recovery     linear viscoelastic model    

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Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 305-309 doi: 10.1007/s11465-009-0036-7

Abstract: A Jeffcott rotor system of cylindrical roller bearings is studied in detail. Its critical speed is calculated by a new calculation method with roller bearing stiffness and damping. The influences of bearing parameters, such as the roller length, rotor mass, distance between the bearings and the kinematics viscosity of oil on the system critical speed are numerically studied, and the influences of an oil film and damping on the critical speed are also studied. Regular curves of the relationship between the geometric parameters and the system critical speed are obtained. The results show that with increasing roller length and radial load, the critical speed increases; and with increasing rotor mass and the distance between the bearings and the kinematics viscosity, the critical speed decreases. This means that an oil film will decrease the critical rotational speed of the rotor system.

Keywords： roller bearing     bearing-rotor system     design value     critical rotational speed    

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Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 959-973 doi: 10.1007/s11708-021-0753-0

Abstract: To retrieve the fuel debris in Fukushima Daiichi Nuclear Power Plants (1F), it is essential to infer the fuel debris distribution. In particular, the molten metal spreading behavior is one of the vital phenomena in nuclear severe accidents because it determines the initial condition for further accident scenarios such as molten core concrete interaction (MCCI). In this study, the fundamental molten metal spreading experiments were performed with different outlet diameters and sample amounts to investigate the effect of the outlet for spreading-solidification behavior. In the numerical analysis, the moving particle full-implicit method (MPFI), which is one of the particle methods, was applied to simulate the spreading experiments. In the MPFI framework, the melting-solidification model including heat transfer, radiation heat loss, phase change, and solid fraction-dependent viscosity was developed and implemented. In addition, the difference in the spreading and solidification behavior due to the outlet diameters was reproduced in the calculation. The simulation results reveal the detailed solidification procedure during the molten metal spreading. It is found that the viscosity change and the solid fraction change during the spreading are key factors for the free surface condition and solidified materials. Overall, it is suggested that the MPFI method has the potential to simulate the actual nuclear melt-down phenomena in the future.

Keywords： molten metal spreading     solidification     particle method     severe accident     fuel debris     decommissioning    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 37-52 doi: 10.1007/s11709-022-0920-3

Abstract: The results indicate that our proposed method is suitable for simulating the discontinuous mechanical behaviors

Keywords： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko beam     Dirac delta function    

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Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Venkatesh KODUR, M. Z. NASER

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 46-60 doi: 10.1007/s11709-020-0676-6

Abstract: This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnelsRecent research undertaken to address fire problems in transportation structures is reviewed, as well

Keywords： fire hazard     bridges     tunnels     fire resistance     mitigation strategies     transportation infrastructure    

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Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 385-387 doi: 10.15302/J-FEM-2017110

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Time- and temperature-dependence of compressive and tensile behaviors of polypropylene fiber-reinforced

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1025-1037 doi: 10.1007/s11709-021-0741-9

Abstract: The understanding of compressive and tensile behaviors of polypropylene fiber-reinforced cemented pastevery limited studies have been performed to gain insight into the evolution of compressive and tensile behaviorsThe obtained results show that pre- and post-failure behaviors of FR-CPB demonstrate strongly curing

Keywords： cemented paste backfill     fiber reinforcement     constitutive behavior     temperature     tailings    

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Title Author Date Type Operation

Sustainable urban transportation development in China: A behavioral perspective

Journal Article

Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing

Journal Article

Future urban transport management

Journal Article

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

Journal Article

Thermal defluorination behaviors of PFOS, PFOA and PFBS during regeneration of activated carbon by molten

Journal Article

Behaviors of EHD Traction Characteristics for High-speed Lubricating Grease

Yang Boyuan,Zheng Peibin,Su Bing,Wu Yongjun,Deng Sier

Journal Article

CFD simulation of jet behaviors in a binary gas-solid fluidized bed: comparisons with experiments

Pei PEI, Guiying WU, Bangting YU, Kai ZHANG, Jianchun JIANG, Dongsheng WEN,

Journal Article

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

Journal Article

Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

Journal Article

Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

Journal Article

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Journal Article

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Journal Article

Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Venkatesh KODUR, M. Z. NASER

Journal Article

Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Journal Article

Time- and temperature-dependence of compressive and tensile behaviors of polypropylene fiber-reinforced

Journal Article