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1. Particle size distributions following chewing: Transformation of two-dimensional outcome from optical scanning to volume outcome from sieving

Author:
Zhang, Yifan; Jia, Jingke; Wang, Xinmiao; Chen, Jianshe; van der Glas, Hilbert W.
Source:
Journal of food engineering 2021 v.309 pp. 110663
ISSN:
0260-8774
Subject:
particle size; particle size distribution,   etc   ; almonds;     Show all 3 Subject
Abstract:
... Following chewing, the particle size distribution (PSD) by cumulative volume is characterized by X₅₀, and b. Volume data are lacking when using less time-consuming optical scanning instead of sieving for characterizing PSDs. The aim was to transform 2D scanning data to 3D ones. Optosil® and almond were used as artificial and real solid foods, and minimal Feret-diameter (min-FD) as a measure of par ...
DOI:
10.1016/j.jfoodeng.2021.110663

2. Enhancing oxygen permeation of solid-state reactive sintered Ce0.8Gd0.2O2-δ-FeCo2O4 composite by optimizing the powder preparation method

Author:
Zeng, Fanlin; Baumann, Stefan; Malzbender, Jürgen; Nijmeijer, Arian; Winnubst, Louis; Guillon, Olivier; Schwaiger, Ruth; Meulenberg, Wilhelm A.
Source:
Journal of membrane science 2021 v.628 pp. 119248
ISSN:
0376-7388
Subject:
particle size,   etc   ; microstructure; oxygen; permeability;     Show all 4 Subjects
Abstract:
... Dual phase membranes with mixed ionic-electronic conductivity exhibit promising properties for applications in pure oxygen separation under harsh atmospheres. The conductivity of an individual phase within dual phase membranes is often attenuated by the blocking effects from the other phase(s). Here, facile but effective ways are reported to alleviate such effects by optimizing the powder preparat ...
DOI:
10.1016/j.memsci.2021.119248

3. Theoretical study of the efficiency of liquid chromatography columns with particle size gradient

Author:
Horváth, Szabolcs; Gritti, Fabrice; Horváth, Krisztián
Source:
Journal of chromatography 2021 pp. 462331
ISSN:
0021-9673
Subject:
particle size,   etc   ; evolution; liquid chromatography;     Show all 3 Subjects
Abstract:
... Modern analytical applications of liquid chromatography require more and more efficient columns. In this work, the possibility of utilizing particle size gradient in the chromatographic column was studied by a theoretical approach. In the course of our work three different scenarios of particle size gradients were considered with different shapes (linear, convex and concave). The evolution of band ...
DOI:
10.1016/j.chroma.2021.462331

4. Synthesis of silver nanoparticles, influence of capping agents, and dependence on size and shape: A review

Author:
Restrepo, Cindy Vanessa; Villa, Cristian C.
Source:
Environmental nanotechnology, monitoring & management 2021 v.15 pp. 100428
ISSN:
2215-1532
Subject:
particle size,   etc   ; administrative management; nanosilver;     Show all 3 Subjects
Abstract:
... Silver nanoparticles have demonstrated a wide range of applications derived from shape and size control which is a crucial factor to improve antimicrobial, physical, and chemical properties. The use of different capping agents not only can control the material’s particle size, agglomeration, and morphology but also stability over time of nanostructures. Furthermore, the type of interaction of the ...
DOI:
10.1016/j.enmm.2021.100428

5. Recent advances in Pt-based electrocatalysts for PEMFCs

Author:
Zhang, Xuewei; Li, Haiou; Yang, Jian; Lei, Yijie; Wang, Cheng; Wang, Jianlong; Tang, Yaping; Mao, Zongqiang
Source:
RSC advances 2021 v.11 no.22 pp. 13316-13328
ISSN:
2046-2069
Subject:
particle size,   etc   ; durability; electrochemistry; electrodes;     Show all 4 Subjects
Abstract:
... In order to reduce the cost and improve the performance of proton exchange membrane fuel cells (PEMFCs), it is imperative to further enhance the activity and durability of Pt based electrocatalysts for the oxygen reduction reaction (ORR). This article analyzes the latest advances in Pt-based ORR electrocatalysts, including the Pt alloys, Pt–M core–shell structures, particle size effects, support e ...
DOI:
10.1039/d0ra05468b

6. Unsteady overflow behavior of polydisperse granular flows against closed type barrier

Author:
Zhang, Bei; Huang, Yu
Source:
Engineering geology 2021 v.280 pp. 105959
ISSN:
0013-7952
Subject:
particle size,   etc   ; geology; mathematical models;     Show all 3 Subjects
Abstract:
... The overflow behavior of polydisperse granular flows against closed type barrier is a crucial yet poorly understood aspect of multiple-barrier design. We use a robust numerical model based on the three-dimensional discrete element method (DEM) to simulate polydisperse granular flows and identify fundamental mechanisms. The morphology of the dead zone behind the upstream barrier significantly influ ...
DOI:
10.1016/j.enggeo.2020.105959

7. The influence of flavor release from a solid test food, and its Time Intensity (TI) scoring, on chewing efficiency

Author:
Jia, Jingke; Zhang, Yifan; Xu, Zhejun; Wang, Xinmiao; Chen, Jianshe; van der Glas, Hilbert W.
Source:
Food quality and preference 2021 v.93 pp. 104247
ISSN:
0950-3293
Subject:
particle size,   etc   ; flavor; food quality; test meals;     Show all 4 Subjects
Abstract:
... Studies on relationships between chewing ability (CA) and flavor perception that use different test foods to determine both functions, include three assumptions: (1) inter-subject ratios of any CA measure are invariant to the test food, (2) CA is invariant to the subject’s amount of attention to the food, and (3) the value of CA is invariant to the nature of the flavor released. The present study ...
DOI:
10.1016/j.foodqual.2021.104247

8. Eddy current separation can be used in separation of non-ferrous particles from crushed waste printed circuit boards

Author:
Huang, Zhe; Zhu, Jie; Wu, Xiaowei; Qiu, Ruijun; Xu, Zhenming; Ruan, Jujun
Source:
Journal of cleaner production 2021 v.312 pp. 127755
ISSN:
0959-6526
Subject:
particle size,   etc   ; energy; heavy metals; magnetism; pollution;     Show all 5 Subjects
Abstract:
... Waste printed circuit boards are produced greatly due to the wide application of electronic devices, in which non-ferrous metals are valuable resources. Without effective recovery processes, it can cause serious heavy metal pollution. Traditional recover technologies will cost too much energy, materials, manpower together with producing secondary ecological and environmental pollution. Eddy curren ...
DOI:
10.1016/j.jclepro.2021.127755

9. Cork powders wettability by the Washburn capillary rise method

Author:
Magalhães da Silva, S.P.; Oliveira, J.M.
Source:
Powder technology 2021 v.387 pp. 16-21
ISSN:
0032-5910
Subject:
particle size,   etc   ; capillarity; cork; hexane; liquids; wettability;     Show all 6 Subjects
Abstract:
... The applicability of Washburn capillary rise (WCR) method on cork powders wettability was investigated. An adapted sample preparation method was also developed to guarantee measurements accuracy and reproducibility. The processing of cork powders by 3D Printing (3DP) presents a clear challenge related to cork wettability. The common liquid binders used in 3DP printers are composed mainly by water ...
DOI:
10.1016/j.powtec.2021.04.005

10. Fluidization regimes for alginate aerogel particles in a laboratory scale Wurster fluidized bed

Author:
Akgün, Işık Sena; Erkey, Can
Source:
Powder technology 2021 v.387 pp. 295-312
ISSN:
0032-5910
Subject:
particle size,   etc   ; aerogels; air; alginates; geometry; technology;     Show all 6 Subjects
Abstract:
... Fluidization regimes for alginate aerogel particles with two different particle sizes were characterized in a laboratory scale Wurster fluidized bed both in the annular zone and the tube zone. For both particle sizes, minimum fluidization and bubbling regimes were observed in both of the zones whereas pneumatic regimes existed only in the tube zone. Moreover, a new regime which was horizontal circ ...
DOI:
10.1016/j.powtec.2021.04.007

11. Preparation of high-entropy carbides by different sintering techniques

Author:
Pötschke, Johannes; Dahal, Manisha; Herrmann, Mathias; Vornberger, Anne; Matthey, Björn; Michaelis, Alexander
Source:
Journal of materials science 2021 v.56 no.19 pp. 11237-11247
ISSN:
0022-2461
Subject:
particle size distribution,   etc   ; X-ray diffraction; hardness;     Show all 3 Subjects
Abstract:
... Dense (Hf, Ta, Nb, Ti, V)C- and (Ta, Nb, Ti, V, W)C-based high-entropy carbides (HEC) were produced by three different sintering techniques: gas pressure sintering/sinter–HIP at 1900 °C and 100 bar Ar, vacuum sintering at 2250 °C and 0.001 bar as well as SPS/FAST at 2000 °C and 60 MPa pressure. The relative density varied from 97.9 to 100%, with SPS producing 100% dense samples with both compositi ...
DOI:
10.1007/s10853-021-06004-y

12. Sedimentation rate of microfluidized sugarcane juice

Author:
Tarafdar, Ayon; Kaur, Barjinder Pal
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2021 v.145 pp. 111317
ISSN:
0023-6438
Subject:
particle size,   etc   ; sedimentation rate; sugarcane juice; viscosity;     Show all 4 Subjects
Abstract:
... Sugarcane juice contains unstable particles that readily undergo agglomeration and sedimentation. In this work, microfluidization was used as a processing tool to generate a possible solution to the sedimentation problem in sugarcane juice for the first time. Stoke's law was used to determine the particle sedimentation rate. Experiments were devised to explore the majority of the pressure range of ...
DOI:
10.1016/j.lwt.2021.111317

13. Recent advances in the design of microfluidic technologies for the manufacture of drug releasing particles

Author:
Forigua, Alejandro; Kirsch, Rebecca L.; Willerth, Stephanie M.; Elvira, Katherine S.
Source:
Journal of controlled release 2021 v.333 pp. 258-268
ISSN:
0168-3659
Subject:
particle size,   etc   ; biocompatible materials; drugs; manufacturing;     Show all 4 Subjects
Abstract:
... Drug releasing particles are valued for their ability to deliver therapeutics to targeted locations and for their controllable release patterns. The development of microfluidic technologies, which are designed specifically to manipulate small amounts of fluids, to manufacture particles for drug delivery applications reflects a recent trend due to the advantages they confer in terms of control over ...
DOI:
10.1016/j.jconrel.2021.03.019

14. Clogging mechanisms of constructed wetlands: A critical review

Author:
Wang, Hanxi; Sheng, Lianxi; Xu, Jianling
Source:
Journal of cleaner production 2021 v.295 pp. 126455
ISSN:
0959-6526
Subject:
particle size,   etc   ; oxygen; porosity; sustainable development;     Show all 4 Subjects
Abstract:
... Clogging is a significant concern in the development of constructed wetlands (CWs). This review performs an in-depth analysis of the reasons, influencing factors and regularities of CW clogging and provides an important basis for treatments addressing clogging in CWs. The factors affecting CW clogging primarily include substrate porosity, hydraulic load, oxygen supply conditions, organic loading, ...
DOI:
10.1016/j.jclepro.2021.126455

15. Characterization of Two Sludges from a Pyrometallurgical Copper Smelting Complex for Designing a Se and Pb Recovery Proposal

Author:
Paz-Gómez, D. C.; Pérez-Moreno, S. M.; Ruiz-Oria, I.; Ríos, G.; Bolívar, J. P.
Source:
Waste and biomass valorization 2021 v.12 no.5 pp. 2739-2755
ISSN:
1877-2641
Subject:
particle size,   etc   ; anglesite; biomass; dust; selenium; sludge;     Show all 6 Subjects
Abstract:
... Gas scrubbing sludge (SS) and fine dust of converters (SC) are wastes generated in the off-gas cleaning system of smelting and converting processes. Both wastes are considered hazardous materials due to their high metal contents and leaching characteristics. The main purpose of this study was to gain essential knowledge on the recovery of valuable elements contained in these wastes. Thus, an exhau ...
DOI:
10.1007/s12649-020-01197-w

16. Importance of salinity-induced stratification on flocculation in tidal estuaries

Author:
Zhang, Ying; Ren, Jie; Zhang, Wenyan; Wu, Jiaxue
Source:
Journal of hydrology 2021 v.596 pp. 126063
ISSN:
0022-1694
Subject:
particle size,   etc   ; estuaries; flocculation; hydrology; particulates; salinity;     Show all 6 Subjects
Abstract:
... Flocculation of suspended particles in tidal estuaries exhibits large spatiotemporal variability due to an interplay of various physical and biogeochemical drivers. Salinity (S) is known to promote flocculation of fine-grained suspended particulate matter (SPM). However, the influence of salinity and salinity-induced stratification on flocculation has not been sufficiently investigated yet. This s ...
DOI:
10.1016/j.jhydrol.2021.126063

17. A modeling approach for quantitative assessment of interfacial interaction between two rough particles in colloidal systems

Author:
Lu, Duowei; Fatehi, Pedram
Source:
Journal of colloid and interface science 2021 v.587 pp. 24-38
ISSN:
0021-9797
Subject:
particle size,   etc   ; coagulation; energy; surface roughness;     Show all 4 Subjects
Abstract:
... The simulation of rough particle surface is important to understand and control the interface behavior of particles in colloidal systems. Literature analysis suggested a lack of information for an accurate model simulating the interfacial interaction between two rough particles. It is hypothesized that the total interfacial energy developed between two rough particles would depend on the surface m ...
DOI:
10.1016/j.jcis.2020.11.121

18. Critical examination of particle swelling during wetting of ground coffee

Author:
Maille, Matthew J.; Sala, Kyle; Scott, David M.; Zukswert, Hannah
Source:
Journal of food engineering 2021 v.295 pp. 110420
ISSN:
0260-8774
Subject:
particle size,   etc   ; decaffeination; hydrochemistry; microscopy; water temperature;     Show all 5 Subjects
Abstract:
... Swelling of roast and ground coffee particles during immersion in water was studied using laser diffraction and digital microscopy. In particular, swelling was investigated on a time scale typical of common brew methods (0.5–5 min). Time-dependent swelling behavior during brewing would change the packed coffee bed parameters and thus the dynamics of coffee extraction.The impact of roast level, dec ...
DOI:
10.1016/j.jfoodeng.2020.110420

19. Migmatitic gneiss aggregates: Compositional, mechanical, and morphological responses to innate heterogeneity

Author:
Trotta, Roberto Pasquale; Barroso, Emílio Velloso; da Motta, Laura Maria Goretti
Source:
Engineering geology 2021 v.283 pp. 106002
ISSN:
0013-7952
Subject:
particle size,   etc   ; digital images; durability; gneiss; hybrids;     Show all 5 Subjects
Abstract:
... Migmatites are hybrid rocks composed of a mixture of metamorphic and igneous lithotypes. This feature can induce marked physical and mechanical variability in aggregates' technological properties, which may affect the performance and durability of structures constructed using these aggregate rocks. However, previous studies have not addressed the technological properties of the migmatite component ...
DOI:
10.1016/j.enggeo.2021.106002

20. Development of a New Testing Approach for Decentralised Technical Sustainable Drainage Systems

Author:
Neupert, Johannes Wolfgang; Lau, Philipp; Venghaus, Daniel; Barjenbruch, Matthias
Source:
Water 2021 v.13 no.5
ISSN:
2073-4441
Subject:
particle size distribution,   etc   ; drainage; stormwater; Germany;     Show all 4 Subjects
Abstract:
... A part of the sustainable drainage systems (SuDS) are used to treat stormwater and must be tested for their hydraulic performance and the removal efficiency to assess serviceability and retention of the pollutants efficacy for in situ use. Current test procedures provide a good basis for laboratory testing SuDS on the test stand. However, the evaluation is not sufficiently representative to compar ...
DOI:
10.3390/w13050722