Showing papers in "Particuology in 2017"

TL;DR: An overview of iron oxide MNPs used in environmental, biomedical, and clinical fields is provided and the application of superparamagnetic iron oxide nanoparticles (SPIONs), which have gained research focus recently owing to their many desirable features, are elaborated.

TL;DR: In this article, the authors used the PM10 chemical composition (organic carbon (OC), elemental carbon (EC), water soluble inorganic ions (WSIC), and trace elements) for source apportionment.

TL;DR: In this paper, the crystal structure and antibacterial properties of cobalt ferrite nanoparticles as a function of Cu-substituted content were systematically studied, and the results indicated that the substitution of Co with Cu in cobalt-ferrite nano-nodes strongly influences the microstructure, crystal structure, and particle diameter.

TL;DR: In this paper, the authors present a numerical investigation of the mechanical behavior of ellipsoids under triaxial compression for a range of aspect ratios, and they find that the stress-dilatancy relationship of ellipses with different aspect ratios could be expressed as a linear equation.

TL;DR: In this article, the authors presented a numerical simulation of the flow inside a cyclone separator at high particle loads using a commercial computational fluid dynamics code, and the results were compared with experimental data collected at the in-house experimental rig.

TL;DR: In this paper, an approach that combines the discrete-element method (DEM) and a physical test to determine the coefficient of rolling friction of irregularly shaped maize particles was described.

TL;DR: In this article, the effect of particle size distribution on the small strain shear stiffness of granular soils was investigated and the fundamental mechanism controlling this small strain stiffness at the particle level was explored.

TL;DR: In this article, three different shear testers (the Jenike shear cell tester, the Schulze ring shear tester and the Brookfield powder flow tester) were compared in terms of the raw shear stress time series, yield loci points, angle of internal friction, cohesion, and unconfined yield strength.

TL;DR: In this article, the response surface methodology along with the central composite design approach is used to calibrate BPMs and the sensitivities of the microparameters related to the uniaxial compressive strength (UCS) and elasticity modulus (i.e., the macroscopic responses of the models) are thoroughly scrutinized.

TL;DR: In this paper, the mixing and segregation of binary mixtures of particles with different sizes and densities in a pseudo-2D spouted bed were studied experimentally, and the effects of air velocity, particle size, and particle mass fraction were also evaluated.

TL;DR: In this paper, the authors used the lattice Boltzmann method (LBM) to solve the RANS equations coupled with the standard and renormalization group k −− ǫ turbulence models.

TL;DR: In this paper, the use of lithium niobate (LiNbO3), a ferroelectric and photocatalyst material, is investigated as a new type of cathode catalyst for wastewater-fed single-chamber microbial fuel cells (MFCs).

TL;DR: In this paper, an alternative approach to simulating arbitrarily shaped particles submersed in viscous fluid in two dimensions is proposed, obtained by adapting the velocity parameter of the equilibrium distribution function of a standard lattice Boltzmann method.

TL;DR: In this article, the performance of a 4-stroke diesel engine was experimentally evaluated upon adding Al2O3 or SiO2 nanoparticles to the engine oil (SAE15W40).

TL;DR: In this paper, the behavior of monodisperse and binary liquid-solid fluidized beds of the same density but different sizes is investigated using radioactive particle tracking (RPT) technique and a dense discrete phase model (DDPM).

TL;DR: In this paper, the authors evaluated the capabilities of the standard k-e turbulence model and the k e turbulence model with added source terms in predicting the experimentally measured turbulence modulation due to the presence of particles in horizontal pneumatic conveying, in the context of a CFD-DEM Eulerian-Lagrangian simulation.

TL;DR: In this paper, a series of monotonic direct shear tests performed on a sand-structure interface under constant normal stiffness using the discrete element method (DEM) is presented.

TL;DR: In this article, a comprehensive review of electrostatic powder coating for pharmaceuticals is presented, giving their advantages and limitations and also analyzing the future application in the industry for each technology.

TL;DR: In this article, the authors investigated the breakage and shape characteristics of ballast aggregates subjected to monotonic and cyclic triaxial tests with two different load frequencies, and found that particle breakage is not only influenced by the particle size distribution but also by the relative density.

TL;DR: A review of state-of-the-art synthesis and processing technologies, as well as the recent developments in academic research is presented in this article, along with a detailed overview of the different systems used for the production of carbon nanotubes and graphene.

TL;DR: In this article, the effects of the size of nanoparticles, their agglomeration and coverage on the surface of cohesive powders in reducing interparticle forces were theoretically analyzed.

TL;DR: In this article, a chitosan aqueous solution containing 20 vol% ethanol as the evaporable solvent and 30 vol% dimethyl sulfoxide as the diffusible solvent was optimal for preparation of chitosa-cell-like size and shape.

TL;DR: In this paper, a rotational resistance model that captures the resistance provided by interlocking asperities on the particle surface is presented. But the model does not capture the effect of shape in DEM simulations.

TL;DR: In this paper, a grid-independent solution of the two fluid models was examined by comparing the bed expansions obtained from numerical simulations with experimental results and empirical predictions, based on bubbling fluidized beds of Geldart B particles.

TL;DR: In this paper, the effects of different operating parameters (process gas temperature, solid feed rate, superficial air velocity) on the particle moisture content distribution were systematically studied using a tank-in-series model.

TL;DR: In this paper, the authors proposed a shear impact energy model (SIEM) of erosion suitable for both dilute and dense particle flows, which can be used for both dense and non-dense particle flows.

TL;DR: Wang et al. as mentioned in this paper measured water-soluble ion concentrations in PM 2.5 in Nanchang, Jiangxi Province, China, to identify the main source(s) of Pb.

TL;DR: The contribution of leakage in a baghouse filter to the emission of fine particles is quantified in comparison to other dust emission sources, and the influence of key operating variables on overall system response is analyzed in this article.

TL;DR: In this paper, a facile and green method to prepare Ce-doped TiO2 nanoparticles supported on porous glass beads is reported, where an ion exchange process and subsequent calcination yielded Ce-decomposed nanoparticles with a mean size of 4.8 ± 0.3 µm.

TL;DR: In this article, the Lacey mixing index and Shannon information entropy were used to explore the effects of sphericity on the mixing and motion of tetrahedra in a thin drum mixer.