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A CFD study of the transport and fate of airborne droplets in a ventilated office: The role of droplet−droplet interactions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1465-8

Abstract:

• Coulomb and Lennard−Jones forces were considered for droplet interactions

Keywords： Droplet interactions     Aerosols     Colloids     CFD     Transport     Fate    

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Comparison of droplet distributions from fluidic and impact sprinklers

Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 1,   Pages 53-59 doi: 10.15302/J-FASE-2015049

Abstract: To adapt to the trend toward low-energy precision irrigation, the droplet distributions for two new prototypeA laser precipitation monitor was used to measure the droplet distributions.Droplet size and velocity distributions were tested under four operating pressures for nozzles 1.5 mFor the operating pressures tested, the mean OS, FS and IS droplet diameters ranged from 0 to 3.4, 0The mean OS and FS droplet velocities ranged from 0 to 6.3 m·s , whereas IS ranged from 0 to 6.3 m·s

Keywords： outside signal sprinkler     fluidic sprinkler     impact sprinkler     sprinkler irrigation     droplet size     droplet    

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Pt–C interactions in carbon-supported Pt-based electrocatalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1677-1697 doi: 10.1007/s11705-023-2300-5

Abstract: catalysts, with special emphasis being given to how activity and stability enhancements are related to Pt–C interactions

Keywords： Pt–C interactions     Pt-based materials     carbon support     electrocatalysis    

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Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 166-173 doi: 10.1007/s11708-010-0105-y

Abstract: optimization of a space power system is greatly affected by the radiation heat transfer in a liquid dropletThe Mie theory is used to calculate the radiative properties of the droplet bed, whereas the effectiveflux in the LDR, such as size distribution, flow velocity, phase change of droplets, layer thickness, dropletDroplet concentration in the layer and the material type of the working fluid have strong effects on

Keywords： radiation heat transfer     particle polydispersion     liquid droplet radiator     phase change    

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Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)

Nathan HOWELL, Weihua LI

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 376-388 doi: 10.1007/s11465-010-0104-z

Abstract: This paper discusses methods of microfluidic droplet actuation by means of electrowetting-on-dielectricsDigital or droplet microfluidics implies the manipulation of droplets on a scale of nanoliters (10 LThe two operations in focus here are droplet translocation (moving) and droplet fission (splitting),The droplet position and mean kinetic energy of the droplet are also investigated and compared to otherworks, proving the dynamics of a droplet motion found here.

Keywords： electrowetting-on-dielectrics (EWOD)     electrowetting     microfluidics     droplet translocation     droplet fission    

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Dynamical analysis of droplet impact spreading on solid substrate

Zhaomiao LIU, Huamin LIU, Xin LIU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 308-315 doi: 10.1007/s11465-010-0020-2

Abstract: This paper investigates the impact spreading of a droplet on a solid substrate using numerical simulationThe process of droplet spreading is described, the analysis of low speed and high speed droplet spreading, and more than one droplet spreading simultaneously is performed.The pressure, velocity, and spreading factor during the droplet spreading are reported.The impact speed impacts on the spreading factors in high speed droplet spreading.

Keywords： droplet     impact spreading     numerical simulation    

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Synthesis of crystals and particles by crystallization and polymerization in droplet-based microfluidic

Jingtao WANG, Jin ZHANG, Junjie HAN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 26-36 doi: 10.1007/s11705-009-0292-4

Abstract: The recent advances in crystallization and polymerization assisted by droplet-based microfluidics toDroplet-based microfluidic devices are powerful tools to execute some precise controls and operationsBecause of the elimination of the interactions among crystallites in bulk systems, using independent

Keywords： core-shell     monodisperse     nucleation     Microfluidic     different technical    

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Numerical study of droplet dynamics impinging onto steel plate covered with scale layer

Jan BOHá?EK, Ale? HORáK

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 389-398 doi: 10.1007/s11465-010-0108-8

Abstract: This paper describes the dynamics of high-speed impact between the compressible water droplet and theConsidering a high droplet impact speed (100–300 ms ), inferential extremely short time interval (0.1Droplet dynamics was simulated with the help of LS-Dyna solver, whereas the stress analysis was performed

Keywords： hydraulic descaling     scale     rolling     water-hammer     descaling theory    

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Responses of microbial interactions to elevated salinity in activated sludge microbial community

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 5, doi: 10.1007/s11783-023-1660-x

Abstract:

● Salinity led to the elevation of NAR over 99.72%.

Keywords： Elevated salinity     Activated sludge system     Pollution removal     Microbial interactions     Competitive relationship    

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Effect of UAV prewetting application during the flowering period of cotton on pesticide droplet deposition

Weixiang YAO, Xianju WANG, Yubin LAN, Ji JIN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4,   Pages 455-461 doi: 10.15302/J-FASE-2018232

Abstract:

Prewetting process can reduce the contact angle between the droplet and the leaf blade, so that thedroplet can more easily wet and spread, thereby increasing the quantity of deposition.The results revealed that with no prewetting, droplet deposition quantity decreased with increasing leafAfter prewetting, the mean droplet deposition quantity on plots B, C and D increased by 39.8%, 9.7% andIt was also found that the mean droplet deposition quantity in each leaf blade angle range increased

Keywords： aerial spray     cotton     deposition     flowering period     leaf angle     prewetting     UAV    

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Water, energy and food interactions–Challenges and opportunities

Gustaf OLSSON

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 787-793 doi: 10.1007/s11783-013-0526-z

Abstract: Water and energy are inextricably linked, and as a consequence both have to be addressed together. This is called the water-energy nexus. When access to either is limited, it becomes obvious that it is necessary to consider their interdependence. Population growth, climate change, urbanization, increasing living standards and food consumption will require an integrated approach where food, water and energy security are considered together. In this paper we examine water, energy and food security and their couplings. The nexus also creates conflicts between water use, energy extraction and generation as well as food production. Some of these conflicts are illustrated. It is argued that there is an urgent need for integrated planning and operation. Not only will better technology be needed, but also better integration of policies, organizations and political decisions.

Keywords： water security     energy security     food security     water-energy nexus     water conflicts    

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Microfluidics for cell-cell interactions: A review

Rui Li,Xuefei Lv,Xingjian Zhang,Omer Saeed,Yulin Deng

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 90-98 doi: 10.1007/s11705-015-1550-2

Abstract: Particularly, microfluidic chip is helpful for better understanding cell-cell interactions.

Keywords： microfluidic chip     co-culture     cell-cell interactions     review    

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SUSTAINABLE CROP AND PASTURE SYSTEMS: FROM ABOVE- AND BELOWGROUND INTERACTIONS TO ECOSYSTEM MULTIFUNCTIONALITY

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 167-169 doi: 10.15302/J-FASE-2022446

Abstract: systems requires deeper and comprehensive understanding of mechanisms underlying above- and belowground interactionsfurther explored synergies or trade-offs of ecosystem services regulated by above- and belowground interactionslivestock manure, permanent soil cover and less disturbance of soil—which promote soil food web interactionsHis research focuses on understanding plant–soil interactions and plant nutrition, with an emphasis
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THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 387-399 doi: 10.15302/J-FASE-2021414

Abstract:

Modern agriculture needs to develop transition pathways toward agroecological, resilient and sustainable farming systems. One key pathway for such agroecological intensification is the diversification of cropping systems using intercropping and notably cereal-grain legume mixtures. Such mixtures or intercrops have the potential to increase and stabilize yields and improve cereal grain protein concentration in comparison to sole crops. Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to represent the combination of four joint effects of Competition, Complementarity, Cooperation, and Compensation as processes or effects occurring simultaneously and dynamically between species over the whole cropping cycle. Competition is when plants have fairly similar requirements for abiotic resources in space and time, the result of all processes that occur when one species has a greater ability to use limiting resources (e.g., nutrients, water, space, light) than others. Complementarity is when plants grown together have different requirements for abiotic resources in space, time or form. Cooperation is when the modification of the environment by one species is beneficial to the other(s). Compensation is when the failure of one species is compensated by the other(s) because they differ in their sensitivity to abiotic stress. The 4C approach allows to assess the performance of arable intercropping versus classical sole cropping through understanding the use of abiotic resources.

 

Keywords： compensation     competition     complementarity     cooperation     interspecific interactions     land equivalent    

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Biopolymer-stabilized emulsions on the basis of interactions between β -lactoglobulin and ι -carrageenan

Qiaomei RU, Younghee CHO, Qingrong HUANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 399-406 doi: 10.1007/s11705-009-0253-y

Abstract: -Carrageenan and -lactoglobulin (-lg) stabilized oil-in-water (O/W) emulsions, which can be used for the oral administration of bioactive but environmentally sensitive ingredients, have been successfully prepared. The effects of protein/polysaccharide ratios, total biopolymer concentration, environmental stress (thermal processing and sonication), and pH on the complex formation between -carrageenan and -lactoglobulin have been investigated. We found that -lactoglobulin and-carrageenan stabilized emulsions can be formed at pH values of 6.0, 4.0, and 3.4. However, the microstructures of emulsions stabilized by -lactoglobulin and -carrageenan was identified by optical microscopy, and it indicated that the emulsion prepared at pH 6.0 flocculated more extensively, while its hydrodynamic radius was much bigger than those prepared at pH 4.0 and 3.4. Regarding rheological properties, the emulsion of pH 6.0 showed a more solid-like behavior but with a lower viscosity than those of pH 4.0 and 3.4. The optimum concentration ranges for -lg and-carrageenan to form stable emulsions at pH 4.0 and 3.4 were 0.3wt-%―0.6wt-% and 0.4wt-%―0.7wt-%, respectively.
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Title Author Date Type Operation

A CFD study of the transport and fate of airborne droplets in a ventilated office: The role of droplet−droplet interactions

Journal Article

Comparison of droplet distributions from fluidic and impact sprinklers

Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU

Journal Article

Pt–C interactions in carbon-supported Pt-based electrocatalysts

Journal Article

Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space

Jinying YIN, Linhua LIU

Journal Article

Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)

Nathan HOWELL, Weihua LI

Journal Article

Dynamical analysis of droplet impact spreading on solid substrate

Zhaomiao LIU, Huamin LIU, Xin LIU,

Journal Article

Synthesis of crystals and particles by crystallization and polymerization in droplet-based microfluidic

Jingtao WANG, Jin ZHANG, Junjie HAN,

Journal Article

Numerical study of droplet dynamics impinging onto steel plate covered with scale layer

Jan BOHá?EK, Ale? HORáK

Journal Article

Responses of microbial interactions to elevated salinity in activated sludge microbial community

Journal Article

Effect of UAV prewetting application during the flowering period of cotton on pesticide droplet deposition

Weixiang YAO, Xianju WANG, Yubin LAN, Ji JIN

Journal Article

Water, energy and food interactions–Challenges and opportunities

Gustaf OLSSON

Journal Article

Microfluidics for cell-cell interactions: A review

Rui Li,Xuefei Lv,Xingjian Zhang,Omer Saeed,Yulin Deng

Journal Article

SUSTAINABLE CROP AND PASTURE SYSTEMS: FROM ABOVE- AND BELOWGROUND INTERACTIONS TO ECOSYSTEM MULTIFUNCTIONALITY

Journal Article

THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Journal Article

Biopolymer-stabilized emulsions on the basis of interactions between β -lactoglobulin and ι -carrageenan

Qiaomei RU, Younghee CHO, Qingrong HUANG,

Journal Article