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Mass transport mechanisms within pervaporation membranes

Yimeng Song, Fusheng Pan, Ying Li, Kaidong Quan, Zhongyi Jiang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3, Pages 458-474 doi: 10.1007/s11705-018-1780-1

Abstract: Fundamental understanding of the mass transport mechanisms is crucial for the rational design of membranethe interactions between permeate molecules and membranes, this review focuses on two categories of masstransport mechanisms within pervaporation membranes: physical mechanism (solution-diffusion mechanismFurthermore, the optimal integration and evolution of different mass transport mechanisms are brieflyMaterial selection and relevant applications are highlighted under the guidance of mass transport mechanisms

Keywords： pervaporation membrane mass transport mechanisms physical mechanism chemical mechanism

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Thermo-fluidic devices and materials inspired from mass and energy transport phenomena in biological

Jian XIAO , Jing LIU ,

Frontiers in Energy 2009, Volume 3, Issue 1, Pages 47-59 doi: 10.1007/s11708-008-0068-4

Abstract: Mass and energy transport consists of one of the most significant physiological processes in nature,and energy transport mechanisms.innovating conventional technologies were discussed, corresponding biological phenomena and physical mechanismswere interpreted, future promising mass-and-energy-transport-based bionic devices were suggested, andIt is expected that many artificial devices based on biological mass and energy transport principle will

Keywords： bionics mass transport energy transport artificial devices and materials biology system nature phenomena

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Mass transfer mechanisms in fixed-bed adsorption of erythromycin

SUN Ying, ZHU Jiawen, CHEN Kui, ZHU Sheng, XU Jie

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4, Pages 353-360 doi: 10.1007/s11705-008-0076-2

Abstract: A mathematical model was used to simulate the mass transfer mechanism, taking film mass transfer, porepredictions were consistent with the experimental data and were consequently used to determine the mass

Keywords： mathematical diffusion separation performance adsorption superficial mechanism

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A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2, Pages 139-161 doi: 10.1007/s11705-010-0527-4

Abstract: This paper presents a summary review on mass transport of coal seam gas (CSG) in coal associated with

Keywords： mass transport coal seam gas (CSG) coalbed methane (CBM) coal CBM recovery carbon dioxide storage

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Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Engineering 2024, Volume 32, Issue 1, Pages 139-152 doi: 10.1016/j.eng.2023.05.014

Abstract:

Fluid flow at nanoscale is closely related to many areas in nature and technology, e.g., unconventional hydrocarbon recovery, carbon dioxide geo-storage, underground hydrocarbon storage, fuel cells, ocean desalination and biomedicine. At nanoscale, interfacial forces dominate over bulk forces, and nonlinear effects are important, which significantly deviate from conventional theory. During the past decades, a series of experiments, theory and simulations have been performed to investigate fluid flow at nanoscale, which has advanced our fundamental knowledge of this topic. However, a critical review is still lacking, which has seriously limited the basic understanding of this area. Therefore herein, we systematically review experimental, theoretical and simulation works on single- and multi- phases fluid flow at nanoscale. We also clearly point out the current research gaps and future outlook. These insights will promote the significant development of nonlinear flow physics at nanoscale and will provide crucial guidance on the relevant areas.

Keywords： Transport in nanoporous media Multi-phase fluid dynamics Nonlinear flow mechanisms Nonlinear flow conservation

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A way to explain the thermal boundary effects on laminar convection through a square duct

Liangbi WANG, Xiaoping GAI, Kun HUANG, Yongheng ZHANG, Xiang YANG, Xiang WU

Frontiers in Energy 2010, Volume 4, Issue 4, Pages 496-506 doi: 10.1007/s11708-010-0020-2

Abstract: A way using the reformulation of the energy conservation equation in terms of heat flux to explain the thermal boundary effects on laminar convective heat transfer through a square duct is presented. For a laminar convection through a square duct, it explains that on the wall surface, the velocity is zero, but convection occurs for uniform wall heat flux (UWHF) boundary in the developing region due to the velocity gradient term; for uniform wall temperature (UWT) boundary, only diffusion process occurs on the wall surface because both velocity and velocity gradient do not contribute to convection; for UWHF, the largest term of the gradient of velocity components (the main flow velocity) on the wall surface takes a role in the convection of the heat flux normal to the wall surface, and this role exists in the fully developed region. Therefore, a stronger convection process occurs for UWHF than for UWT on the wall surface. The thermal boundary effects on the laminar convection inside the flow are also detailed.

Keywords： convective transport heat transfer mass transfer laminar flow thermal boundary effects

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The source and transport of bioaerosols in the air: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1336-8

Abstract:

• Emission of microbe from local environments is a main source of bioaerosols.

Keywords： Bioaerosols Diffusion Source identification Biogeography

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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1, Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION SYSTEMS FOOD CONCEPTS MECHANISMS

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Gripping mechanisms in current wood harvesting machines

D. GOUBET, J. C. FAUROUX, G. GOGU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 42-61 doi: 10.1007/s11465-013-0358-3

Abstract:

This paper focuses on the structural synthesis of gripping mechanisms used in the mechanization ofThis function is performed with several typical mechanisms which are listed and described in this articleThis study distinguishes two kinds of planar gripping mechanisms mainly used in opening and closing theTwo planar and one spatial existing mechanisms are described.Nine kinematic diagrams of spatial parallel mechanisms are provided.

Keywords： structural synthesis parallel mechanisms gripping mechanisms wood harvesting harvesting head

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Intercontinental transport of air pollution

Lin ZHANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1, Pages 20-29 doi: 10.1007/s11783-010-0014-7

Abstract: There is an increasing interest on the intercontinental transport of air pollution among the three mainObservations from ground sites, aircraft and satellites have demonstrated this intercontinental-scale transportNumerical models have been applied to understand the pathways of the transport and the impact of intercontinentalpollution transport.This paper reviews current observational evidence and modeling studies of intercontinental transport

Keywords： intercontinental transport ozone air pollution

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Numerical Modeling of Water Waves Interaction With Soft Mud Beds: Based on an Empirical Rheology Model Featured by Hysteresis Loop

Qi Peng,Hou Yijun

Strategic Study of CAE 2006, Volume 8, Issue 4, Pages 39-45

Abstract: Model verifications are given through comparisons between the calculated and the measured bed mud masstransport velocities as well as the rate of decay of surface wave heights.

Keywords： mud mass transport wave attenuation soft mud bed rheological model

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Reconfigurable mechanisms can deliberately reconfigure themselves by rearranging the connectivity ofMetamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichhave attracted increasing attention in the field of mechanisms since they were proposed.This paper presents an overview of recent developments in innovation design of reconfigurable mechanismsin China, including metamorphic and origami mechanisms and their typical applications.

Keywords： innovation design reconfigurable mechanisms metamorphic mechanisms origami-derived mechanisms development

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Future urban transport management

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

Abstract: lacks systematic theories and methodologies to represent the underlying characteristics of future urban transportFoundation of China (NSFC) officially approved the Basic Science Center project titled “Future Urban Transportleading scientists and engineers from Beijing Jiaotong University, Beihang University, and Beijing Transport

Keywords： future urban transport management travel behavior characteristics transportation operations transportation

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Thermal transport properties of monolayer phosphorene: a mini-review of theoretical studies

Guangzhao QIN, Ming HU

Frontiers in Energy 2018, Volume 12, Issue 1, Pages 87-96 doi: 10.1007/s11708-018-0513-y

Abstract: applications in nano-/opto-electronics and thermoelectrics call for fundamental understanding of the thermal transportConsidering the fact that there have been so many studies on the thermal transport in phosphorene, itIn this mini-review, the unique thermal transport properties of phosphorene induced by the hinge-likeMoreover, a fundamental insight into the thermal transport is provided based on the review of resonantThis mini-review summarizes the progress of the thermal transport in phosphorene and gives an outlook

Keywords： thermal transport phosphorene resonant bonding