Resource Type

Journal Article 49

Conference Videos 1

Year

2024 1

2023 2

2022 4

2021 3

2020 6

2019 2

2018 8

2017 9

2016 3

2015 2

2013 3

2012 2

2011 2

2010 1

2009 1

2002 1

open ︾

Keywords

porous media 8

Social media 3

Around corners 2

Big data 2

Scattering media 2

Transient imaging 2

Adsorption 1

Ankle exoskeleton 1

Artificial general intelligence 1

Artificial intelligence 2.0 1

Autonomous-intelligent system 1

Being-with 1

Biological gait torque 1

Bioretention 1

CFD 1

CFD simulation 1

CO2 absorption Nanofluid 1

Cable-driven 1

Characterization 1

open ︾

Search scope:

排序： Display mode:

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    

HTML PDF Collect

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 673-687 doi: 10.1007/s11705-019-1800-9

Abstract: Adsorptive polyethesulfone (PES) membranes were prepared by intercalation of powder activated carbon (PAC) with and without functionalization. Accordingly, PAC was aminated with 1,5-diamino-2-methylpentane, and the physicochemical properties of the functionalized PAC were analyzed. Intercalation of PAC within the PES scaffold changed the porosity and mean pore size of the aminated membrane (AC-NH ) from 52.6% to 92.5% and from 22.6 nm to 3.5 nm, respectively. The effect of temperature on the performance of the modified membranes was monitored by the flux and chemical oxygen demand (COD) removal of leachate. At ambient temperature, the COD removal of the neat, AC-containing, and AC-NH membranes was 47%, 52%, and 58.5%, respectively. A similar increment was obtained for the membrane flux, which was due to the synergistic effect of the high porosity and large number of hydrophilic functional groups. The experimental leachate adsorption data were analyzed by Langmuir, Freundlich, and Dubinin- Radushkevich isotherm models. For all membranes, the significant thermodynamic parameters ( , , and ) were calculated and compared. The isosteric heat of adsorption was lower than 80 kJ∙mol , indicating that the interaction between the membranes and the leachate is mainly physical, involving weak van der Waals forces.

Keywords： amine functionality     nanoporous membrane     adsorption isotherm     thermodynamic parameters     landfill leachate    

HTML PDF Collect

Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 127-136 doi: 10.1007/s11708-018-0519-5

Abstract: In recent year, nanoporous Si thin films have been widely studied for their potential applications inAlong this line, a high thermoelectric figure of merit (ZT) is also anticipated for other nanoporousNumerous thermoelectric studies have been carried out on Si-based nanoporous thin films, whereas cost-effectiveIn this work, the cross-plane thermal conductivities of nanoporous In Ga N thin films with varied porousIn contrast to previous studies using dry-etched nanopores with amorphous pore edges, the measured nanoporous

Keywords： nanoporous film     thermoelectrics     phonon     mean free path     diffusive scattering    

HTML PDF Collect

Transport of antibiotic resistance plasmids in porous media and the influence of surfactants

Peipei Chen, Chaoqi Chen, Xiqing Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0986-7

Abstract: Transport of engineered antibiotic resistance plasmids in porous media has been reported to potentiallyIn this work, transport of an indigenous resistance plasmid pK5 in porous media was investigated through

Keywords： Indigenous plasmid     Transport     Porous media     Surfactants    

HTML PDF Collect

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 114-120 doi: 10.1007/s11709-014-0267-5

Abstract: The accurate and efficient simulation of random heterogeneous media is important in the framework ofThis paper provides a critical examination of existing random field models of heterogeneous two-phase media

Keywords： microstructure     random fields     level sets     shape recovery     two-phase media    

HTML PDF Collect

Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials Review

Katie A. Cychosz,Matthias Thommes

Engineering 2018, Volume 4, Issue 4,   Pages 559-566 doi: 10.1016/j.eng.2018.06.001

Abstract:

Assessing the adsorption properties of nanoporous materials and determining their structural characterizationhave been achieved both in the knowledge of the adsorption and phase behavior of fluids in ordered nanoporousfew important and central features of the underlying adsorption mechanisms of fluids in a variety of nanoporous

Keywords： Adsorption     Characterization     High-pressure adsorption     Nanoporous materials    

HTML PDF Collect

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1068-1

Abstract:

Check-in and survey data are explored to identify personal activity-specific places.

Ways for detecting and moderating sample bias of Weibo check-in data is proposed.

A graphic representation of urban activity intensity in Beijing, China is presented.

The potential application of Weibo check-in data for urban analysis is introduced.

Keywords： Social media     Human mobility     Population bias     Sample reconstruction     Data integration    

HTML PDF Collect

Immunogenicity and protective immunity against otitis media caused by pneumococcus in mice of Hib conjugate

Zeyu Chen,Rong Guo,Jianghong Xu,Chuangjun Qiu

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 490-498 doi: 10.1007/s11684-016-0470-y

Abstract: and the inflammation of the middle ear showed the effectiveness of protective immunity against otitis mediaanti-PsaA and anti-Hib immune responses in young mice and elicit effective protection against acute otitis media

Keywords： conjugate vaccine     pneumococcal surface adhesin A     Hemophilus influenzae b     immunogenicity     otitis media    

HTML PDF Collect

analysis and seepage process study on crystal layer in melt crystallization with fractal and porous media

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 435-441 doi: 10.1007/s11705-011-1139-3

Abstract: In this paper a porous media seepage model was applied to analyze the permeability and study the seepage

Keywords： melt crystallization     porous media     fractal     permeability     hyperpure material     simulation    

HTML PDF Collect

Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination Article

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Engineering 2022, Volume 16, Issue 9,   Pages 247-255 doi: 10.1016/j.eng.2020.06.033

Abstract:

Although nanoporous membranes are of great interest in desalination, it is still challenging to constructhighly permeable nanoporous membranes with excellent rejections for an efficient desalination processIn this work, highly permeable nanoporous membranes were built from renewable resources, assisted by

Keywords： Nanoporous membrane     Renewable resources     Nanofiltration     Desalination     Glucose    

HTML PDF Collect

Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 112-128 doi: 10.1007/s11783-008-0067-z

Abstract: analytical solutions for the three-dimensional contaminant transport in uniform flow field in porous media

Keywords： solution library     contaminant transport     analytical solution     dispersion and advection     porous media     type    

HTML PDF Collect

Migration and fate of polycyclic aromatic hydrocarbons in bioretention systems with different media:

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1802-9

Abstract:

● Bioretention systems showed > 92% load reduction rates of PAHs.

Keywords： Bioretention     Polycyclic aromatic hydrocarbons     HYDRUS-1D     Model simulation     Migration    

HTML PDF Collect

The influence of social media on stock volatility

Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 201-211 doi: 10.15302/J-FEM-2017018

Abstract: This study explores the influence of social media on stock volatility and builds a feature model withan intelligence algorithm using social media data from Xueqiu.com in China, Sina Finance and EconomicsOur findings indicate that the influence of social media data on the next day’s volatility is more significant

Keywords： stock volatility     social data     sentiment analysis     boosting algorithm    

HTML PDF Collect

Investigation of Generalized SIFs of cracks in 3D piezoelectric media under various crack-face conditions

Jaroon RUNGAMORNRAT, Bounsana CHANSAVANG, Weeraporn PHONGTINNABOOT, Chung Nguyen VAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 280-298 doi: 10.1007/s11709-019-0586-7

Abstract: medium inside the crack gap on intensity factors of planar and non-planar cracks in linear piezoelectric media

Keywords： crack-face conditions     intensity factors     non-flat cracks     permittivity     piezoelectric media     SGBEM    

HTML PDF Collect

Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 9-19 doi: 10.1007/s11705-013-1306-9

Abstract: Oral insulin delivery has received the most attention in insulin formulations due to its high patient compliance and, more importantly, to its potential to mimic the physiologic insulin secretion seen in non-diabetic individuals. However, oral insulin delivery has two major limitations: the enzymatic barrier that leads to rapid insulin degradation, and the mucosal barrier that limits insulin’s bioavailability. Several approaches have been actively pursued to circumvent the enzyme barrier, with some of them receiving promising results. Yet, thus far there has been no major success in overcoming the mucosal barrier, which is the main cause in undercutting insulin’s oral bioavailability. In this review of our group’s research, an innovative silica-based, mucoadhesive oral insulin formulation with encapsulated-insulin/cell penetrating peptide (CPP) to overcome both enzyme and mucosal barriers is discussed, and the preliminary and convincing results to confirm the plausibility of this oral insulin delivery system are reviewed. In vitro studies demonstrated that the CPP-insulin conjugates could facilitate cellular uptake of insulin while keeping insulin’s biologic functions intact. It was also confirmed that low molecular weight protamine (LMWP) behaves like a CPP peptide, with a cell translocation potency equivalent to that of the widely studied TAT. The mucoadhesive properties of the produced silica-chitosan composites could be controlled by varying both the pH and composition; the composite consisting of chitosan (25 wt-%) and silica (75 wt-%) exhibited the greatest mucoadhesion at gastric pH. Furthermore, drug release from the composite network could also be regulated by altering the chitosan content. Overall, the universal applicability of those technologies could lead to development of a generic platform for oral delivery of many other bioactive compounds, especially for peptide or protein drugs which inevitably encounter the poor bioavailability issues.

Keywords： insulin     cell penetrating peptide     mucoadhesive composites     oral delivery    

HTML PDF Collect

Title Author Date Type Operation

Transport in Nanoporous Media

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

Journal Article

Preparation of adsorptive nanoporous membrane using powder activated carbon: Isotherm and thermodynamic

Majid Peyravi

Journal Article

Largely reduced cross-plane thermal conductivity of nanoporous In

Dongchao XU, Quan WANG, Xuewang WU, Jie ZHU, Hongbo ZHAO, Bo XIAO, Xiaojia WANG, Xiaoliang WANG, Qing HAO

Journal Article

Transport of antibiotic resistance plasmids in porous media and the influence of surfactants

Peipei Chen, Chaoqi Chen, Xiqing Li

Journal Article

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Journal Article

Progress in the Physisorption Characterization of Nanoporous Gas Storage Materials

Katie A. Cychosz,Matthias Thommes

Journal Article

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Journal Article

Immunogenicity and protective immunity against otitis media caused by pneumococcus in mice of Hib conjugate

Zeyu Chen,Rong Guo,Jianghong Xu,Chuangjun Qiu

Journal Article

analysis and seepage process study on crystal layer in melt crystallization with fractal and porous media

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Journal Article

Building a Highly Stable Ultrathin Nanoporous Layer Assisted by Glucose for Desalination

Yanqiu Zhang, Fan Yang, Hongguang Sun, Yongping Bai, Songwei Li, Lu Shao

Journal Article

Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Journal Article

Migration and fate of polycyclic aromatic hydrocarbons in bioretention systems with different media:

Journal Article

The influence of social media on stock volatility

Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE

Journal Article

Investigation of Generalized SIFs of cracks in 3D piezoelectric media under various crack-face conditions

Jaroon RUNGAMORNRAT, Bounsana CHANSAVANG, Weeraporn PHONGTINNABOOT, Chung Nguyen VAN

Journal Article

Overcoming oral insulin delivery barriers: application of cell penetrating peptide and silica-based nanoporous

Huining HE, Junxiao YE, Jianyong SHENG, Jianxin WANG, Yongzhuo HUANG, Guanyi CHEN, Jingkang WANG, Victor C YANG

Journal Article