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1. Leveraging collective effects in externally driven colloidal suspensions: experiments and simulations

Author:
Driscoll, Michelle; Delmotte, Blaise
Source:
Current opinion in colloid & interface science 2019 v.40 pp. 42-57
ISSN:
1359-0294
Subject:
mixing,   etc   ; colloids; hydrodynamics;     Show all 3 Subjects
Abstract:
... In this review article, we focus on collective motion in externally driven colloidal suspensions, as well as how these collective effects can be harnessed for use in microfluidic applications. We highlight the leading role of hydrodynamic interactions in the self-assembly, emergent behavior, transport, and mixing properties of colloidal suspensions. A special emphasis is given to recent numerical ...
DOI:
10.1016/j.cocis.2018.10.002

2. Segregation of glass beads in three-sectional tapered fluidized beds with ternary system

Author:
Hong, TaekWoon; Jung, EunJin; Lee, Dong Hyun
Source:
Powder technology 2019 v.343 pp. 342-349
ISSN:
0032-5910
Subject:
mixing; mixing ratio,   etc   ; fluidized beds; glass; particle size; powders;     Show all 6 Subjects
Abstract:
... The objective of this study was to determine the effect of initial mixing ratio of glass beads and superficial gas velocity on mixing and segregation in a ternary system gas-solids three-sectional tapered fluidized bed with a cone angle of 25. The bed material was a ternary solid mixture consisting of three particles [ilmenite (dp = 153 μm, ρs = 3860 kg/m3), coke (dp = 582 μm, ρs = 1762 kg/m3), an ...
DOI:
10.1016/j.powtec.2018.11.055

3. Circulating turbulent fluidized bed regime on flow regime diagram

Author:
Boonprasop, Sutthichai; Chalermsinsuwan, Benjapon; Piumsomboon, Pornpote
Source:
Powder technology 2019 v.350 pp. 146-153
ISSN:
0032-5910
Subject:
mixing,   etc   ; fluidized beds; polymethylmethacrylate; powders;     Show all 4 Subjects
Abstract:
... Circulating turbulent fluidized bed (CTFB) regime was recently found under a low superficial gas velocity (Ug) system and contained the advantages of both a conventional turbulent fluidized bed, with an excellent mixing property between the gas and solid phases due to the high solid volume fraction (SVF), and a fast fluidized bed (FFB) or circulating fluidized bed (CFB) regime, which could be empl ...
DOI:
10.1016/j.powtec.2019.03.047

4. Controlled addition of new liquid component into surface droplet arrays by solvent exchange

Author:
Li, Miaosi; Yu, Haitao; Bao, Lei; Dyett, Brendan; Zhang, Xuehua
Source:
Journal of colloid and interface science 2019 v.543 pp. 164-173
ISSN:
0021-9797
Subject:
mixing,   etc   ; droplets; liquids; prediction; solvents;     Show all 5 Subjects
Abstract:
... Microscopic droplets integrating multiple functionalities are essential in the microcompartmentalized related reaction and applications. Solvent exchange is a simple approach for producing femtoliter surface droplets by the transit oversaturation created at the mixing front of a solution by a poor solvent. But it remains challenging to control the compositions in nanodroplets. Our hypothesis is th ...
DOI:
10.1016/j.jcis.2019.02.046

5. The future of domestic water law: trends and developments revisited, and where reform is headed

Author:
Burchi, Stefano
Source:
Water international 2019 v.44 no.3 pp. 258-277
ISSN:
1941-1707
Subject:
mixing,   etc   ; water allocation; water rights;     Show all 3 Subjects
Abstract:
... A re-visitation of trends and developments in water legislation in the light of experience and new legislation from selected countries confirms the findings of prior stocktaking, while bearing out advances in many areas: achieving adaptability of regulatory water-allocation mechanisms; blending efficiency and equity of allocation; ‘greening’ of water laws; bridging the land–water divide; and givin ...
DOI:
10.1080/02508060.2019.1575999

6. Simulation of granular mixing in a static mixer by the discrete element method

Author:
Göbel, Filipp; Golshan, Shahab; Norouzi, Hamid Reza; Zarghami, Reza; Mostoufi, Navid
Source:
Powder technology 2019 v.346 pp. 171-179
ISSN:
0032-5910
Subject:
mixing,   etc   ; geometry; mixers; powders; temperature;     Show all 5 Subjects
Abstract:
... Mixing of solids in static mixers with different geometries was studied using discrete element method (DEM) simulations. The DEM code was validated by comparing the simulation results with experimental data for a static mixer with 180° Kenics elements. Two different types of blending elements, Kenics and LPD, were considered and compared. Effects of the number of blending elements, the angle of tw ...
DOI:
10.1016/j.powtec.2019.02.014

7. Mixing and segregation behaviors of a binary mixture in a pulsating fluidized bed

Author:
Lim, Leonard Jing Jie; Lim, Eldin Wee Chuan
Source:
Powder technology 2019 v.345 pp. 311-328
ISSN:
0032-5910
Subject:
mixing,   etc   ; bubbles; fluidized beds; powders;     Show all 4 Subjects
Abstract:
... The mixing and segregation behaviors of a binary mixture in a pulsating fluidized bed were investigated computationally in this study. A square-wave pulsating flow was applied with different mean inlet superficial velocities, pulsation amplitudes and pulsation frequencies. An increase in mean velocity increased the formation of bubbles and promoted mixing of the flotsam and jetsam in the fluidized ...
DOI:
10.1016/j.powtec.2019.01.026

8. Development of supramolecular shape-memory polyurethanes based on Cu(II)–pyridine coordination interactions

Author:
Zou, Faxing; Chen, Heng; Chen, Shaojun; Zhuo, Haitao
Source:
Journal of materials science 2019 v.54 no.6 pp. 5136-5148
ISSN:
0022-2461
Subject:
mixing,   etc   ; copper; engineering; polyurethanes; pyridines;     Show all 5 Subjects
Abstract:
... Shape-memory polymers with supramolecular switch have received increasing attention. This study reports the synthesis and characterization of supramolecular shape-memory polyurethane based on Cu(II)–pyridine coordination, obtained by mixing pyridine containing polyurethane with CuCl₂. The results show that there are strong metal–ligand coordination interactions formed between Cu(II) and the pyridi ...
DOI:
10.1007/s10853-018-3179-2

9. Definition of cycle based comprehensive efficiency of a cooled turbine

Author:
Ba, Wei; Wang, Xiao-chen; Li, Xue-song; Ren, Xiao-dong; Gu, Chun-wei
Source:
Energy 2019 v.168 pp. 601-608
ISSN:
0360-5442
Subject:
mixing,   etc   ; air; energy; heat transfer;     Show all 4 Subjects
Abstract:
... As known that the cooling technology is commonly used in the turbine to protect the turbine blade. The mixing and heat transfer between the high pressure cooling air from the compressor and the turbine main flow would cause energy loss, and it will influence the gas turbine cycle performance. However, the existing definitions of the cooled turbine efficiency always take no account of the work whic ...
DOI:
10.1016/j.energy.2018.11.137

10. Particle scale modelling of mixing of ellipsoids and spheres in gas-fluidized beds by a modified drag correlation

Author:
Abbaszadeh Molaei, E.; Yu, A.B.; Zhou, Z.Y.
Source:
Powder technology 2019 v.343 pp. 619-628
ISSN:
0032-5910
Subject:
mixing,   etc   ; models; particle size; powders;     Show all 4 Subjects
Abstract:
... Shape is one of the most important properties of particles, and can affect particle flow behavior significantly in particulate systems. In the past, extensive studies have been conducted on the effect of particle size and density on the mixing quality of particle mixtures in gas-fluidized beds, but little is known regarding the influence of particle shape. In this work, CFD-DEM approach is used to ...
DOI:
10.1016/j.powtec.2018.11.054

11. A comprehensive review of ejector design, performance, and applications

Author:
Tashtoush, Bourhan M.; Al-Nimr, Moh'd A.; Khasawneh, Mohammad A.
Source:
Applied energy 2019
ISSN:
0306-2619
Subject:
mixing,   etc   ; mathematical models; refrigeration; surveys;     Show all 4 Subjects
Abstract:
... The objective of this work is to provide a literature survey on the research attempts made in the field of ejector refrigeration systems and the studies made on the ejector as a component. The review is to be structured four parts. In the first part, the focus is on the effect of different geometrical aspects affecting the performance of the ejector in terms of entertainment ratio, pressure ratio ...
DOI:
10.1016/j.apenergy.2019.01.185

12. Development of a high performance static air mixer with a short mixing distance

Author:
Lim, Seok-Young; Chang, Hyun-Jae
Source:
Journal of cleaner production 2019 v.224 pp. 686-696
ISSN:
0959-6526
Subject:
mixing,   etc   ; air; air conditioning; fluid mechanics;     Show all 4 Subjects
Abstract:
... Air mixing in an air mixing chamber affects an air-conditioning system's performances. Low air mixing effectiveness is associated with several problems. In this study, modified statistical air mixing effectiveness is proposed. An experimental study and CFD (Computational fluid dynamics) simulation were conducted for the development of high performance static air mixer over a short mixing distance. ...
DOI:
10.1016/j.jclepro.2019.03.245

13. A theoretical study on a novel combined organic Rankine cycle and ejector heat pump

Author:
Zhang, Chenghu; Lin, Jiyou; Tan, Yufei
Source:
Energy 2019 v.176 pp. 81-90
ISSN:
0360-5442
Subject:
mixing,   etc   ; heat pumps; heat recovery; statistical models;     Show all 4 Subjects
Abstract:
... A novel combined organic Rankine cycle and ejector heat pump is proposed, which combines the organic Rankine cycle and ejector heat pump, and could produce both power output and heat output simultaneously. An ejector is installed on the turbine inlet side to increase the total heat exchange amount of the combined cycle by utilizing the injection capability of the high-pressure primary fluid. Using ...
DOI:
10.1016/j.energy.2019.03.190

14. Silver-based metal-organic gels as novel coreactant for enhancing electrochemiluminescence and its biosensing potential

Author:
Li, Yang; He, Li; Huang, Cheng Zhi; Li, Yuan Fang
Source:
Biosensors & bioelectronics 2019 v.134 pp. 29-35
ISSN:
0956-5663
Subject:
mixing,   etc   ; DNA; biosensors; electrochemiluminescence; gels; nanomaterials;     Show all 6 Subjects
Abstract:
... Metal-organic gels (MOGs), a kind of soft materials, were reported as a brand new category of novel solid coreactants for enhancing electrochemiluminescence (ECL) of Ru (bpy)32+ and derivatives. In this work, silver-based MOGs (Ag-MOGs) prepared by a one-step mixing and heating approach were demonstrated as novel efficient solid-state coreactants which differ from the previous research on ECL core ...
DOI:
10.1016/j.bios.2019.03.058

15. Membrane preparation from hyperbranched perfluorinated polymers

Author:
Quast, Matthew J.; Mueller, Anja
Source:
Journal of polymer science 2019 v.57 no.9 pp. 961-972
ISSN:
0887-624X
Subject:
mixing,   etc   ; composite polymers; crosslinking; mechanical properties; separation;     Show all 5 Subjects
Abstract:
... In this research, membrane formation with hyperbranched perfluorinated polymers (HBFP) was investigated. To create a tough membrane, HBFP was blended and crosslinked with a tougher linear polymer. Blending only or crosslinking only was not sufficient to create a tough membrane, but combining blending with crosslinking was successful. Miscibility, phase separation, and thermal and mechanical proper ...
DOI:
10.1002/pola.29348

16. As-cast ternary polymer solar cells based on a nonfullerene acceptor and its fluorinated counterpart showing improved efficiency and good thickness tolerance

Author:
Pan, Feilong; Zhang, Lianjie; Jiang, Haiying; Yuan, Dong; Nian, Yaowen; Cao, Yong; Chen, Junwu
Source:
Journal of materials chemistry A 2019 v.7 no.16 pp. 9798-9806
ISSN:
2050-7496
Subject:
mixing,   etc   ; energy; polymers; separation; solar cells;     Show all 5 Subjects
Abstract:
... A ternary blend by introducing a third component into a binary blend for a polymer solar cell (PSC) is a promising strategy because the light absorption, morphology, and carrier transport of the active layer as well as energy level alignment of the donor and the acceptor may be optimized. In this work, a nonfullerene acceptor IDIC and its fluorinated acceptor ID4F were selected to combine with a P ...
DOI:
10.1039/c9ta01003c

17. Ternary blend organic solar cells with improved morphological stability

Author:
Nam, Minwoo; Yoo, Jaehong; Park, Yunjae; Noh, Hye Yeon; Park, Yongkook; Cho, Junhee; Kim, Jung-A.; Kim, Jehan; Lee, Hyun Hwi; Chang, Rakwoo; Ko, Doo-Hyun
Source:
Journal of materials chemistry A 2019 v.7 no.16 pp. 9698-9707
ISSN:
2050-7496
Subject:
mixing,   etc   ; chemistry; fullerene; simulation models; solar cells;     Show all 5 Subjects
Abstract:
... Long-term stability of organic blends is a key factor for the practical use of organic solar cells (OSCs) in commercial fields. Here, we report the strategic incorporation of non-fullerene small molecules in polymer:fullerene blends to obtain ternary OSCs with improved efficiency and extended lifetimes. Non-fullerene small molecules employed in the polymer:fullerene blend successfully increased th ...
DOI:
10.1039/c9ta00382g

18. Generation of nanoparticles upon mixing ethanol and water; Nanobubbles or Not?

Author:
Alheshibri, Muidh; Craig, Vincent S.J.
Source:
Journal of colloid and interface science 2019 v.542 pp. 136-143
ISSN:
0021-9797
Subject:
mixing,   etc   ; bubbles; deaeration; ethanol; nanobubbles; nanoparticles; solvents;     Show all 7 Subjects
Abstract:
... The debate as to whether nanoparticles that are formed upon mixing ethanol and water are nanobubbles or other nanoparticles has continued over the past decade. In this work, we test the hypothesis that long lived bulk nanobubbles are produced upon mixing ethanol and water, using techniques that probe the density and the pressure response of the nanoparticles.Nanoparticles were generated spontaneou ...
DOI:
10.1016/j.jcis.2019.01.134

19. A review on computational fluid dynamic simulation for rotating packed beds

Author:
Yang, Yu‐Cheng; Ouyang, Yi; Zhang, Na; Yu, Qing‐Jie; Arowo, Moses
Source:
Journal of chemical technology and biotechnology 2019 v.94 no.4 pp. 1017-1031
ISSN:
0268-2575
Subject:
mixing,   etc   ; hydrodynamics; mass transfer; mathematical models;     Show all 4 Subjects
Abstract:
... A rotating packed bed (RPB) is one of the cutting‐edge process intensification technologies due to its high mass transfer and mixing efficiency. Nevertheless, owing to the complex structure and hydrodynamic characteristics of RPBs, valuable data inside the reactor is hard to obtain by conventional experimental methods. Computational fluid dynamics (CFD) owing to its unique advantages of low cost, ...
DOI:
10.1002/jctb.5880

20. Unsupervised Nonlinear Spectral Unmixing of Satellite Images Using the Modified Bilinear Model

Author:
Niranjani, K.; Vani, K.
Source:
Journal of the Indian Society of Remote Sensing 2019 v.47 no.4 pp. 573-584
ISSN:
0255-660X
Subject:
mixing,   etc   ; data collection; remote sensing; statistical models;     Show all 4 Subjects
Abstract:
... Episodes of mixing pixels in satellite imageries are more prevalent. Hence, spectral unmixing approach is used to perform the sub-pixel classification of satellite images. Many unmixing works were done based on the assumption that the pixels are linearly mixed (single interaction) but in real scenarios, the pixels are nonlinearly mixed due to interactions. Fan model and generalized bilinear model ...
DOI:
10.1007/s12524-018-0907-7