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

Frontiers of Structural and Civil Engineering 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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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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Behaviors of EHD Traction Characteristics for High-speed Lubricating Grease

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

Strategic Study of Chinese Academy of Engineering 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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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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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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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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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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Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-022-0914-1

Abstract: Therefore, the directional differences in the horizontal bearing behaviors of SBPs are investigated in

Keywords： single batter pile skew horizontal load model test finite-element analysis empirical design method

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FACTORS INFLUENCING FOOD-WASTE BEHAVIORS AT UNIVERSITY CANTEENS IN BEIJING, CHINA: AN INVESTIGATION BASED

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2022472

Abstract:

● Investigate the actual situation of food waste at university canteens in Beijing, China.

Keywords： university students food waste behavior theory of planned behavior university canteen

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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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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

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

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

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

Behaviors of EHD Traction Characteristics for High-speed Lubricating Grease

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

Journal Article

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

Journal Article

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

Journal Article

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

Venkatesh KODUR, M. Z. NASER

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

Numerical analysis of bearing behaviors of single batter piles under horizontal loads in various directions

Journal Article

FACTORS INFLUENCING FOOD-WASTE BEHAVIORS AT UNIVERSITY CANTEENS IN BEIJING, CHINA: AN INVESTIGATION BASED

Journal Article

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

Yongfu SUN, Ziyou GAO

Journal Article

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