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Journal articles on the topic 'Complex Inter-particle Interactions'

Author: Grafiati

Published: 7 September 2023

Last updated: 31 July 2025

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1

Shankaran, Harish, and Sriram Neelamegham. "Effect of secondary flow on biological experiments in the cone‐plate viscometer: Methods for estimating collision frequency, wall shear stress and inter‐particle interactions in non‐linear flow." Biorheology: The Official Journal of the International Society of Biorheology 38, no. 4 (2001): 275–304. http://dx.doi.org/10.1177/0006355x2001038004005.

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We present a theoretical analysis of fluid flow and particle interactions in the cone‐plate viscometer under conditions typically applied in biological studies. The analysis demonstrates that at higher shear rates, besides linear primary flow in the rotational direction, prominent non‐linear secondary flow causes additional fluid circulation in the radial direction. Two parameters, the cone angle and Reynolds number, characterize flow in the viscometer over all ranges of shear rate. Our results indicate that secondary flow causes positional variations in: (i) the velocity gradient, (ii) the di

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Kahan, Alan, Thomás Fogarty, Jing Li, and Thomas Busch. "Driving Interactions Efficiently in a Composite Few-Body System." Universe 5, no. 10 (2019): 207. http://dx.doi.org/10.3390/universe5100207.

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We study how to efficiently control an interacting few-body system consisting of three harmonically trapped bosons. Specifically, we investigate the process of modulating the inter-particle interactions to drive an initially non-interacting state to a strongly interacting one, which is an eigenstate of a chosen Hamiltonian. We also show that for unbalanced subsystems, where one can individually control the different inter- and intra-species interactions, complex dynamics originate when the symmetry of the ground state is broken by phase separation. However, as driving the dynamics too quickly

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El-Sapa, Shreen, and Munirah Aali Alotaibi. "Slip-Driven Interaction of Dual Spheres in Couple Stress Fluids Within a Permeable Medium." Mathematics 13, no. 13 (2025): 2065. https://doi.org/10.3390/math13132065.

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This study investigates the consistent and uniform movement of two spherical particles within an infinite porous medium saturated with a couple stress fluid, with a particular focus on the effects of surface slippage. The research reveals that surface slippage significantly reduces the drag force experienced by the particles, thereby influencing their hydrodynamic interactions. Conversely, increases in permeability and particle size similarity tend to enhance both the drag force and the inter-particle interaction forces, affecting the overall dynamics of particle motion. The analysis is conduc

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Mihajlović, Milan, Juan G. Ramírez, Ildefonso Campos Velarde, Martin Van Sint Annaland, and Ivo Roghair. "Numerical Investigation of the Influence of Temperature on Fluidization Behavior: Importance of Particle Collision Parameters and Inter-Particle Forces." Fluids 10, no. 3 (2025): 60. https://doi.org/10.3390/fluids10030060.

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Fluidized bed reactors (FBRs) are integral to various industries due to their exceptional capability in facilitating efficient gas–solid interactions, resulting in superior mixing and heat and mass transfer. This research delves into the impact of temperature on fluidization dynamics, particularly focusing on the collisional properties of particles within the bed. The investigation builds upon foundational research, notably Geldart’s classification of fluidization regimes and recent advancements in high-temperature experimental techniques, such as High-Temperature Endoscopic-Laser particle ima

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Neshamar, Otto, Dominic van der A, Tom O'Donoghue, and Jos Derksen. "TRANSPORT OF ALIEN PARTICLES IN SAND BEDS MOBILISED BY WAVES." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 106. https://doi.org/10.9753/icce.v38.sediment.106.

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Sand beds in the marine environment often contain discrete particles with properties that differ substantially from those of the native sand. These “alien” particles occur in a wide range of sizes, shapes and densities, with examples ranging from low-density plastic fragments to industrial particles with densities significantly higher than the native sand. Understanding and predicting the behaviour of these particles as the sand bed is mobilised by waves and currents is important for predicting their potential impact on the marine environment. The motion of an alien particle in a mobilised san

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Barcelos, Erika I., Shaghayegh Khani, Mônica F. Naccache, and Joao Maia. "Supervised learning for accurate mesoscale simulations of suspension flow in wall-bounded geometries." Physics of Fluids 34, no. 5 (2022): 053110. http://dx.doi.org/10.1063/5.0086759.

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Herein, we have employed a supervised learning approach combined with Core-Modified Dissipative Particle Dynamics Simulations (CM-DPD) in order to develop and design a reliable physics-based computational model that will be used in studying confined flow of suspensions. CM-DPD was recently developed and has shown promising performance in capturing rheological behavior of colloidal suspensions; however, the model becomes problematic when the flow of the material is confined between two walls. Wall-penetration by the particles is an unphysical phenomenon that occurs in coarse-grained simulations

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Vego, Ilija, Vincent Richefeu, Georgios Felekis, Alessandro Tengattini, and Gioacchino Viggiani. "A simple discrete approach to explore the response of swelling and softening particles." Géotechnique Letters 15, no. 1 (2025): 1–32. https://doi.org/10.1680/jgele.24.00063.

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The response of granular materials is significantly affected by the stiffness of the particles that constitute them. This stiffness can evolve and the particles can exhibit strong inter-granular strain. While generally overlooked in literature, these features emerge in numerous materials that can soften and swell. This is the case for clays, root systems, and polymer-based particles. This study investigates the macroscopic effects of concurrent particle swelling and softening, based on previous experimental results on hygroscopic granular assemblies [Vego et al., 2022; Vego et al., 2023a; Vego

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Ilyin, Sergey O. "Structural Rheology in the Development and Study of Complex Polymer Materials." Polymers 16, no. 17 (2024): 2458. http://dx.doi.org/10.3390/polym16172458.

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The progress in polymer science and nanotechnology yields new colloidal and macromolecular objects and their combinations, which can be defined as complex polymer materials. The complexity may include a complicated composition and architecture of macromolecular chains, specific intermolecular interactions, an unusual phase behavior, and a structure of a multi-component polymer-containing material. Determination of a relation between the structure of a complex material, the structure and properties of its constituent elements, and the rheological properties of the material as a whole is the sub

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Hubbe, Martin A., Pegah Tayeb, Michael Joyce, et al. "Rheology of nanocellulose-rich aqueous suspensions: A Review." BioResources 12, no. 4 (2017): 9556–661. http://dx.doi.org/10.15376/biores.12.4.hubbe.

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The flow characteristics of dilute aqueous suspensions of cellulose nanocrystals (CNC), nanofibrillated cellulose (NFC), and related products in dilute aqueous suspensions could be of great importance for many emerging applications. This review article considers publications dealing with the rheology of nanocellulose aqueous suspensions in the absence of matrix materials. In other words, the focus is on systems in which the cellulosic particles themselves – dependent on their morphology and the interactive forces between them – largely govern the observed rheological effects. Substantial progr

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Zhang, Tao, Michelle C. Miller, Yi Zheng, et al. "Macromolecular assemblies of complex polysaccharides with galectin-3 and their synergistic effects on function." Biochemical Journal 474, no. 22 (2017): 3849–68. http://dx.doi.org/10.1042/bcj20170143.

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Although pectin-derived polysaccharides can antagonize galectin function in various pathological disorders, the nature of their binding interactions needs to be better defined for developing them as drugs. Moreover, given their relatively large size and complexity, pectin-derived polysaccharides are also useful as model systems to assess inter-polysaccharide and protein–polysaccharide interactions. Here, we investigated interactions between galectin-3 (Gal-3) and pectin-derived polysaccharides: a rhamnogalacturonan (RG) and two homogalacturonans (HGs). BioLayer Interferometry and fluorescence-

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Maity, Tuhin Subhra, Howard M. Fried, and Kevin M. Weeks. "Anti-cooperative assembly of the SRP19 and SRP68/72 components of the signal recognition particle." Biochemical Journal 415, no. 3 (2008): 429–37. http://dx.doi.org/10.1042/bj20080569.

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The mammalian SRP (signal recognition particle) represents an important model for the assembly and role of inter-domain interactions in complex RNPs (ribonucleoproteins). In the present study we analysed the interdependent interactions between the SRP19, SRP68 and SRP72 proteins and the SRP RNA. SRP72 binds the SRP RNA largely via non-specific electrostatic interactions and enhances the affinity of SRP68 for the RNA. SRP19 and SRP68 both bind directly and specifically to the same two RNA helices, but on opposite faces and at opposite ends. SRP19 binds at the apices of helices 6 and 8, whereas

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Goehring, Lucas, Joaquim Li, and Pree-Cha Kiatkirakajorn. "Drying paint: from micro-scale dynamics to mechanical instabilities." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2093 (2017): 20160161. http://dx.doi.org/10.1098/rsta.2016.0161.

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Charged colloidal dispersions make up the basis of a broad range of industrial and commercial products, from paints to coatings and additives in cosmetics. During drying, an initially liquid dispersion of such particles is slowly concentrated into a solid, displaying a range of mechanical instabilities in response to highly variable internal pressures. Here we summarize the current appreciation of this process by pairing an advection-diffusion model of particle motion with a Poisson–Boltzmann cell model of inter-particle interactions, to predict the concentration gradients in a drying colloida

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Liu, Guangxin, David McLaughlin, Simon Thiele, and Chuyen Pham. "Linking Multicomponent Interactions of Catalyst Ink and Catalyst Layer Fabrication with Electrochemical CO₂ Reduction Performance." ECS Meeting Abstracts MA2023-01, no. 38 (2023): 2238. http://dx.doi.org/10.1149/ma2023-01382238mtgabs.

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The controllable fabrication of catalyst layers (CL) by tuning the multiscale structure formation is complex but vital to achieving optimum CO2 reduction (CO2R) performance. The CL formation is deeply influenced by catalyst ink. An in-depth understanding on the role of each catalyst ink component and how multicomponent interactions affect ink status, catalyst layer structure, and CO2R performance is crucial. In this work, the roles of various ingredients of catalyst ink were systematically investigated from simple binary inks to complete catalyst inks. Our results showed Ag agglomerates can be

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Daumas, F., N. Destainville, C. Millot, A. Lopez, D. Dean, and L. Salomé. "Interprotein interactions are responsible for the confined diffusion of a G-protein-coupled receptor at the cell surface." Biochemical Society Transactions 31, no. 5 (2003): 1001–5. http://dx.doi.org/10.1042/bst0311001.

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The monitoring of the movements of membrane proteins (or lipids) by single-particle tracking enables one to obtain reliable insights into the complex dynamic organization of the plasma membrane constituents. Using this technique, we investigated the diffusional behaviour of a G-protein-coupled receptor. The trajectories of the receptors revealed a diffusion mode combining a short-term rapid confined diffusion with a long-term slow diffusion. A detailed statistical analysis shows that the receptors have a diffusion confined to a domain which itself diffuses, the confinement being due to long-ra

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Cai, Xia. "Molecular dynamics simulation of gold sintering with different nano-sizes." Journal of Physics: Conference Series 3009, no. 1 (2025): 012052. https://doi.org/10.1088/1742-6596/3009/1/012052.

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Abstract In this paper, the sintering process of Gold nanoparticles was simulated by using molecular dynamics simulation to observe the changes in microstructure during the sintering process. The fitted relationship between the sintering neck growth width and angle and the sintering time was obtained. The changes in the crystalline structure of the sintered system model of nanoparticles with different sizes at different times as well as different shapes at the time of sintering completion were observed. The results show that as the size of the nanoparticles becomes smaller and smaller, the mor

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Balachandar, S. "A Simplified Two-Fluid Model Based on Equilibrium Closure for a Dilute Dispersion of Small Particles." Mathematics 12, no. 22 (2024): 3543. http://dx.doi.org/10.3390/math12223543.

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Two-fluid formalisms that fully account for all complex inter-phase interactions have been developed based on a rigorous ensemble-averaging procedure. Here, we apply equilibrium approximation to particle velocity to simplify two-phase flow equations for the case of a dilute dispersion of particles much smaller than the flow scales. First, we extend an earlier approach to consider the rotational motion of the particles and seek an equilibrium approximation for the angular velocity of the particulate phase. The resulting explicit knowledge of the particulate phase translational and rotational ve

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KOURAKIS, IOANNIS, and PADMA KANT SHUKLA. "NONLINEAR EXCITATIONS IN STRONGLY-COUPLED PLASMA LATTICES: ENVELOPE SOLITONS, KINKS AND INTRINSIC LOCALIZED MODES." International Journal of Bifurcation and Chaos 16, no. 06 (2006): 1711–25. http://dx.doi.org/10.1142/s0218127406015623.

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Ensembles of charged particles (plasmas) are a highly complex form of matter, most often modeled as a many-body system characterized by weak inter-particle interactions (electrostatic coupling). However, strongly-coupled plasma configurations have recently been produced in laboratory, either by creating ultra-cold plasmas confined in a trap or by manipulating dusty plasmas in discharge experiments. In this paper, the nonlinear aspects involved in the motion of charged dust grains in a one-dimensional plasma monolayer (crystal) are discussed. Different types of collective excitations are review

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Sanchez-Mondragon, Joel, and Alberto Omar Vazquez-Hernandez. "Solitary wave collisions by double-dam-broken simulations with the MPS method." Engineering Computations 35, no. 1 (2018): 53–70. http://dx.doi.org/10.1108/ec-04-2016-0142.

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Purpose The paper aims to apply a modified version of the MPS method to a double-dam-breaking test in which high dispersion zones and high natural clusterization zones are present, such as when the water column collapses into two sides and the two solitary waves collide, respectively. Design/methodology/approach The work takes advantage of the mixed source term from the cheaper computational version of the moving particle semi-implicit (MPS) method to reduce one step from the MPS classical algorithm. The proposed test can be successfully simulated by applying modifications to the variance para

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Leinonen, Ville, Harri Kokkola, Taina Yli-Juuti, et al. "Comparison of particle number size distribution trends in ground measurements and climate models." Atmospheric Chemistry and Physics 22, no. 19 (2022): 12873–905. http://dx.doi.org/10.5194/acp-22-12873-2022.

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Abstract. Despite a large number of studies, out of all drivers of radiative forcing, the effect of aerosols has the largest uncertainty in global climate model radiative forcing estimates. There have been studies of aerosol optical properties in climate models, but the effects of particle number size distribution need a more thorough inspection. We investigated the trends and seasonality of particle number concentrations in nucleation, Aitken, and accumulation modes at 21 measurement sites in Europe and the Arctic. For 13 of those sites, with longer measurement time series, we compared the fi

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Thalamala, Ravi Chandran, A. Venkata Swamy Reddy, and B. Janet. "A Novel Bio-Inspired Algorithm Based on Social Spiders for Improving Performance and Efficiency of Data Clustering." Journal of Intelligent Systems 29, no. 1 (2018): 311–26. http://dx.doi.org/10.1515/jisys-2017-0178.

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Abstract Since the last decade, the collective intelligent behavior of groups of animals, birds or insects have attracted the attention of researchers. Swarm intelligence is the branch of artificial intelligence that deals with the implementation of intelligent systems by taking inspiration from the collective behavior of social insects and other societies of animals. Many meta-heuristic algorithms based on aggregative conduct of swarms through complex interactions with no supervision have been used to solve complex optimization problems. Data clustering organizes data into groups called clust

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Suraj, M. V., A. Talaat, B. C. Dodrill, Y. Wang, J. K. Lee, and P. R. Ohodnicki. "Magnetic characterization of self-assembled nanostructures in cobalt ferrites using first-order reversal curve (FORC) analysis." AIP Advances 12, no. 3 (2022): 035031. http://dx.doi.org/10.1063/9.0000329.

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Magnetic ceramics are important for numerous technologically relevant applications with a detailed understanding of structure, property, and processing inter-relationships playing a critical role in tailoring magnetic properties. Spinel ferrites are a particularly interesting class of magnetic ceramics of chemical formula AB2O4, with applications including biomedical hyperthermia and high frequency electrical power conversion. In this contribution, we seek to investigate a unique class of Co-ferrites in which spinodal decomposition can produce a ferrite nanocomposite with chemistry and stress

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Chandola, Himanshu, Tim E. Williamson, Bruce A. Craig, Alan M. Friedman, and Chris Bailey-Kellogg. "Stoichiometries and affinities of interacting proteins from concentration series of solution scattering data: decomposition by least squares and quadratic optimization." Journal of Applied Crystallography 47, no. 3 (2014): 899–914. http://dx.doi.org/10.1107/s1600576714005913.

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In studying interacting proteins, complementary insights are provided by analyzing both the association model (the stoichiometry and affinity constants of the intermediate and final complexes) and the quaternary structure of the resulting complexes. Many current methods for analyzing protein interactions either give a binary answer to the question of association and no information about quaternary structure or at best provide only part of the complete picture. Presented here is a method to extract both types of information from X-ray or neutron scattering data for a series of equilibrium mixtu

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Lisnyak, Yu. V., and A. V. Martynov. "MOLECULAR DYNAMICS STUDY OF QUERCETIN AND SOME OF ITS SUCCINYL DERIVATIVES IN AQUEOUS SOLUTION." Annals of Mechnikov Institute, N 1 (April 7, 2018): 6–15. https://doi.org/10.5281/zenodo.1214609.

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<strong>Introduction.</strong> Numerous and diverse biological activity of flavonoid quercetin motivates interest to the peculiarities of its structure as a prerequisite for understanding its structure-function properties which are not fully understood today and remain an object of physico-chemical, biological and structural studies. In the solid state, quercetin is known to exist in two crystal forms, quercetin monohydrate and quercetin dihydrate. But there are only scare data on its structure in the aqueous solution. High-throughput screening studies indicated that quercetin belongs to promi

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Ledevin, M., N. Arndt, and A. Simionovici. "The rheological behavior of fracture-filling cherts: example of Barite Valley dikes, Barberton Greenstone Belt, South Africa." Solid Earth Discussions 6, no. 1 (2014): 1227–64. http://dx.doi.org/10.5194/sed-6-1227-2014.

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Abstract. A 100 m-thick complex of near-vertical carbonaceous chert dikes marks the transition from the Mendon to Mapepe Formations (3260 Ma) in the Barberton Greenstone Belt, South Africa. Fracturing was intense in this area, as shown by the profusion and width of the dikes (ca. 1 m on average) and by the abundance of completely shattered rocks. The dike-and-sill organization of the fracture network and the upward narrowing of some of the large veins indicate that at least part of the fluid originated at depth and migrated upward in this hydrothermal plumbing system. Abundant angular fragment

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Yi, Xiao Qin, Qing Hai Zeng, and Ying Liang. "Analysis of Motion Process of Incompact Landslip-Collapse Soil." Advanced Materials Research 602-604 (December 2012): 2174–78. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.2174.

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Simulating motion process of incompact landslip-collapse soil. Monitoring evolution process of average contact force and unbalance force when which are moving. Simulation results indicate that: Process of its motion manifest the macro space position changes, as well as, are the change process about contact stress, unbalance force within the inter particle and single particle movement mechanics etc. Average contact force reflects close degree between particles, fluctuation extent of microscopic parameter and levels of interaction between particles. Microscopic parameters of movement process can

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Ji, Xian Jun, and Guo Qiang Ou. "Numerical Simulation and Analysis of Motion Process of Incompact Soil along Slope." Applied Mechanics and Materials 138-139 (November 2011): 459–65. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.459.

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Simulating motion process of incompact soil. Monitoring evolution process of average contact force and unbalance force between particles during moving; Recording microscopic parameters and its changing processes, incliding spatial locations, translational rate and rotation rate of specific particle during the moving. Simulation results properly reproduced the whole process of it along slope, which include the starting, moving, piling up. Simulation results indicate that: Process of its motion manifest the macro space position changes, as well as, are the change process about contact stress, un

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RETKUTE, RENATA, and JAMES P. GLEESON. "ROLE OF INTERACTION ON NOISE-INDUCED TRANSPORT OF TWO COUPLED PARTICLES IN BROWNIAN RATCHET DEVICES." Fluctuation and Noise Letters 06, no. 03 (2006): L263—L277. http://dx.doi.org/10.1142/s0219477506003409.

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The motion of elastically coupled Brownian particles in ratchet-like potentials has attracted much recent interest due to its application to transport processes in many fields, including models of DNA polymers. We consider the influence of the type of interacting force on the transport of two particles in a one-dimensional flashing ratchet. Our aim is to examine whether the common assumption of elastic coupling captures the important features of ratchet transport when the inter-particle forces are more complex. We compare Lennard-Jones type interaction to the classical case of elastically coup

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Patnaik, Sansit, and Fabio Semperlotti. "Variable-order particle dynamics: formulation and application to the simulation of edge dislocations." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2172 (2020): 20190290. http://dx.doi.org/10.1098/rsta.2019.0290.

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This study presents the application of variable-order (VO) fractional operators to modelling the dynamics of edge dislocations under the effect of a static state of shear stress. More specifically, a particle dynamic approach is used to simulate the microscopic structure of a material where the constitutive atoms or molecules are modelled via discrete masses and their interaction via inter-particle forces. VO operators are introduced in the formulation in order to capture the complex linear-to-nonlinear dynamic transitions following the translation of dislocations as well as the creation and a

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Yosef, Tewodros Y., Chen Fang, Ronald K. Faller, et al. "A Review of Soil Constitutive Models for Simulating Dynamic Soil–Structure Interaction Processes Under Impact Loading." Geotechnics 5, no. 2 (2025): 40. https://doi.org/10.3390/geotechnics5020040.

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The accurate modeling of dynamic soil–structure interaction processes under impact loading is critical for advancing the design of soil-embedded barrier systems. Full-scale crash testing remains the benchmark for evaluating barrier performance; however, such tests are costly, logistically demanding, and subject to variability that limits repeatability. Recent advancements in computational methods, particularly the development of large-deformation numerical schemes, such as the multi-material arbitrary Lagrangian–Eulerian (MM-ALE) and smoothed particle hydrodynamics (SPH) approaches, offer viab

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Nanni, Alessandro, Gianni Tinarelli, Carlo Solisio, and Cristina Pozzi. "Comparison between Puff and Lagrangian Particle Dispersion Models at a Complex and Coastal Site." Atmosphere 13, no. 4 (2022): 508. http://dx.doi.org/10.3390/atmos13040508.

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A comparison between a puff atmospheric dispersion model (hereafter: PuM) and a Lagrangian particle model (hereafter: LPM) was conducted for a real case of emissions from an industrial plant, in the context of a complex and coastal site. The PuM’s approach is well-known and widely adopted worldwide, thanks to the authoritative suggestions by the US-EPA for regulatory use as, according to the definitions included in its guidelines, an “alternative” to “preferred” models; LPMs are more advanced models and have gained reliability over the last two decades. Therefore, it is of interest to provide

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Delfino, Pablo Maria, Mariia Bofanova, Eric De Vito, et al. "Lithium Isotope Tracing and Imaging on Silicon-Based Electrodes by Focused Ion Beam-Secondary Ion Mass Spectrometry." ECS Meeting Abstracts MA2025-01, no. 1 (2025): 67. https://doi.org/10.1149/ma2025-01167mtgabs.

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Lithium-ion batteries are ubiquitous in many amenities of daily life, from portable electronics to electric vehicles and stationary energy storage, all thanks to major improvements in their performance. However, the need for higher energy density, longer lifespans and safer units is relentless. A wide variety of cathode and anode materials are currently being developed and tested to meet these needs. Therefore, the detailed description of the solid electrolyte interface (SEI) formation, lithium transport mechanisms within cell components, electrochemical activity, loss of lithium and/or active

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Chen, Yicheng, Dayi Qu, Tao Wang, Shanning Cui, and Dedong Shao. "Quantification Method of Driving Risks for Networked Autonomous Vehicles Based on Molecular Potential Fields." Applied Sciences 15, no. 3 (2025): 1306. https://doi.org/10.3390/app15031306.

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Connected autonomous vehicles (CAVs) face constraints from multiple traffic elements, such as the vehicle, road, and environmental factors. Accurately quantifying the vehicle’s operational status and driving risk level in complex traffic scenarios is crucial for enhancing the efficiency and safety of connected autonomous driving. To continuously and dynamically quantify the driving risks faced by CAVs in the road environment—arising from the front, rear, and lateral directions—this study focused s on the self-driving particle characteristics that enable CAVs to perceive their surrounding envir

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Liu, Xiao, Pu Zhao, Hanbing Qu, Ning Liu, Ke Zhao, and Chuanliang Xiao. "Optimal Placement and Sizing of Distributed PV-Storage in Distribution Networks Using Cluster-Based Partitioning." Processes 13, no. 6 (2025): 1765. https://doi.org/10.3390/pr13061765.

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Conventional approaches for distributed generation (DG) planning often fall short in addressing operational demands and regional control requirements within distribution networks. To overcome these limitations, this paper introduces a cluster-oriented DG planning method. In terms of cluster partitioning, this study breaks through the limitations of traditional methods that solely focus on electrical parameters or single functions. Innovatively, it partitions the distribution network by comprehensively considering multiple critical factors such as system grid structure, nodal load characteristi

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Yang, J., S. Kook, K. Kim, and C. Kweon. "In-Flame And In-Cylinder Flow/Turbulence Measurements Near The Glow Plug Using Flame Image Velocimetry And Particle Image Velocimetry In An Optical Compression-Ignition Engine." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 20 (July 11, 2022): 1–19. http://dx.doi.org/10.55037/lxlaser.20th.94.

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The present study implements two diagnostic methods based on tracking of seeded olive oil droplets (PIV: particle image velocimetry) and pattern changes detected in high-speed flame movies (FIV: flame image velocimetry) in a small-bore optical diesel engine. For each measurement, a total of 100 engine cycles are recorded and processed to address the inherent cyclic variations. The ensemble-averaged flow fields and turbulence intensity distribution extracted from individual cycles via the spatial filtering method are discussed with a particular interest in the influence of glow plug on flow and

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Lakhbayeva, Zh A., R. S. Taubayeva, S. M. Tazhibayeva, A. A. Barany, and K. B. Musabekov. "Aggregation of Aqueous Kaolin Suspensions in the Presence of Cationic Polyelectrolytes, Anionic Polyelectrolytes and their Mixtures." Eurasian Chemico-Technological Journal 18, no. 2 (2016): 117. http://dx.doi.org/10.18321/ectj432.

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The influence of anionic, cationic synthetic polyelectrolytes and their mixtures on the aggregation of kaolin hydrosuspension has been studied by means of spectrophotometry, electrophoresis and dynamic light scattering (DLS). An enhancement of the flocculating property of the cationic polyelectrolyte FO 4650 in accordance with its consumption increases from 0.77 mg/g to 7.7 mg/g has been found. At these conditions the relative size of floccules (R) increases from 1.0 to 13.0. The increase of the flocculating property accordingly to the increasing charge of anionic polyelectrolyte is observed i

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M. Mohammed Thaha, Et al. "An Aerial Robotics Investigation into the Stability, Coordination, and Movement of Strategies for Directing Swarm and Formation of Autonomous MAVs and Diverse Groups of Driverless Vehicles (UGVs)." International Journal on Recent and Innovation Trends in Computing and Communication 11, no. 3 (2023): 301–4. http://dx.doi.org/10.17762/ijritcc.v11i3.8908.

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This study will discuss the matter of movement communication and preparation of tight configurations of land & flying robots. Remotely Operated Cars (UGVs) and Unmanned Aerial Vehicles (UAVs), in specific Micro Aerial Vehicles (MAVs), would be used to fix circumstances where a creation of UGVs and UAVs, in specific Micro Aerial Vehicles (MAVs), should counteract their velocity and direction to finish a mission of traffic sequence to a targeted area. The motion planning and stabilisation strategy given here is a useful tool for deploying closely collaborating robot teams including both outd

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Brás, Ana, Ana Arizaga, Uxue Agirre, et al. "Chain-End Effects on Supramolecular Poly(ethylene glycol) Polymers." Polymers 13, no. 14 (2021): 2235. http://dx.doi.org/10.3390/polym13142235.

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In this work we present a fundamental analysis based on small-angle scattering, linear rheology and differential scanning calorimetry (DSC) experiments of the role of different hydrogen bonding (H-bonding) types on the structure and dynamics of chain-end modified poly(ethylene glycol) (PEG) in bulk. As such bifunctional PEG with a molar mass below the entanglement mass Me is symmetrically end-functionalized with three different hydrogen bonding (H-bonding) groups: thymine-1-acetic acid (thy), diamino-triazine (dat) and 2-ureido-4[1H]-pyrimidinone (upy). A linear block copolymer structure and a

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Smirnov, L. A., and A. S. Pikovsky. "Dynamics of oscillator populations globally coupled with distributed phase shifts." Genes & Cells 18, no. 4 (2023): 886–89. http://dx.doi.org/10.17816/gc623518.

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Globally coupled populations of oscillators are exemplary models for synchronization and the emergence of collective modes. In many cases, the nature of the global coupling is predetermined by the setup. Nevertheless, the oscillators can possess distinct properties and intrinsic noise, leading to non-identity of the system elements. The variation in natural frequencies among the oscillators is the primary source of non-identity. This feature has already been extensively studied. Our research focuses on the impact of phase shift coupling disorder. These phase lags naturally occur where the glob

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Rajagopal, Kalai Kumar, and Ruqi Zhang. "Effect of time-dependent inter-particle interaction on the dynamics of a dissipative double-well Bose-Einstein condensate." Communications in Physics 34, no. 2 (2024). http://dx.doi.org/10.15625/0868-3166/19703.

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In this paper, we study the dynamics of a dissipative double-well BEC driven by sinusoidally oscillating time-dependent inter-particle interaction. The phase space of the system is illustrated physically by its population imbalance and phase difference. The macroscopic dynamics of the model are generated within the Mean-field limit neglecting a single moment for random noise but their two-point noise-noise correlation persists. Equilibrium stability fixed points are observed for systems subjected to constant inter-particle interaction. The time-dependent (sinusoidal) inter-particle interaction

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Bell-Davies, Miranda C. R., Joan Codina, Arran Curran, Jure Dobnikar, Roel P. A. Dullens, and Ignacio Pagonabarraga. "Direct measurement of repulsive and attractive pair potentials using pairs of optical traps." Journal of Chemical Physics 160, no. 18 (2024). http://dx.doi.org/10.1063/5.0184292.

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We present a technique for measuring the interactions between pairs of colloidal particles in two optical traps. This method is particularly suitable for measuring strongly attractive potentials, an otherwise challenging task. The interaction energy is calculated from the distribution of inter-particle separations by accounting for the contribution from the optical traps with arbitrary trap profiles. The method is simple to implement and applicable to different types of pair potentials and optical trapping geometries. We apply the method to measure dipolar pair interactions in experiments with

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Bose, Subhaya, Patrick S. Noerr, Ajay Gopinathan, Arvind Gopinath, and Kinjal Dasbiswas. "Collective States of Active Particles With Elastic Dipolar Interactions." Frontiers in Physics 10 (May 3, 2022). http://dx.doi.org/10.3389/fphy.2022.876126.

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Many types of animal cells exert active, contractile forces and mechanically deform their elastic substrate, to accomplish biological functions such as migration. These substrate deformations provide a mechanism in principle by which cells may sense other cells, leading to long-range mechanical inter–cell interactions and possible self-organization. Here, inspired by cell mechanobiology, we propose an active matter model comprising self-propelling particles that interact at a distance through their mutual deformations of an elastic substrate. By combining a minimal model for the motility of in

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Ghannam, Anas, Anas Alazzam, and Eiyad Abu-Nada. "Oscillatory motion of two confined interacting particles settling under thermal convection: A lattice Boltzmann study." Physics of Fluids 36, no. 12 (2024). https://doi.org/10.1063/5.0238950.

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This study investigated the sedimentation of two oscillating cold circular particles within a confined heated channel using the lattice Boltzmann method. The main objective was to investigate the effects of mixed convection, initial particle positioning, and wall confinement on particle behavior under different thermal regimes. In particular, this work sought to explain the mutual interactions between particles in the presence of these effects. Such an investigation is highly significant due to its widespread relevance in various natural and industrial processes involving particle transport. T

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Lee, Young Jin, Howon Jin, Dae Yeon Kim, Seunghoon Kang, and Kyung Hyun Ahn. "Lagrangian-based simulation method using constrained Stokesian dynamics for particulate flows in microchannel." Journal of Fluid Mechanics 990 (July 10, 2024). http://dx.doi.org/10.1017/jfm.2024.493.

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A simulation method has been developed to efficiently evaluate the motion of colloidal particles in a low-Reynolds-number confined microchannel flow using a Lagrangian-based approach. In this method, the background velocity within the channel, in the absence of suspended particles, is obtained from a fluid dynamics solver and is used to update the velocity at the particle centres using the Stokesian dynamics (SD) method, which incorporates multi-body hydrodynamic interactions. As a result, instead of computing the momentum of both the fluid and particles throughout the entire computational dom

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Kure, Mathias, Frederik Laust Durhuus, Cathrine Frandsen, and Marco Beleggia. "Hysteresis loops of exchange-coupled magnetic nanoparticle clusters." Journal of Physics D: Applied Physics, March 11, 2025. https://doi.org/10.1088/1361-6463/adbf2e.

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Abstract Experimental evidence indicates that significant exchange coupling may exist between magnetic nanoparticles (MNPs) in dense MNP aggregates such as nanoflower clusters. Here, we examine the role of inter-particle exchange interactions in determining the magnetic properties of MNP clusters, in particular their athermal hysteresis in a low-frequency alternating field. We consider mechanically fixed close-packed clusters where each particle is modeled as a single macrospin coupled to the others by both dipolar interactions and nearest-neighbor exchange. Upon simulating the quasi-static hy

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Judge, Russell A., Janani Sridar, Kathryn Tunyasunvunakool, et al. "Structure of the PAPP-ABP5 complex reveals mechanism of substrate recognition." Nature Communications 13, no. 1 (2022). http://dx.doi.org/10.1038/s41467-022-33175-2.

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AbstractInsulin-like growth factor (IGF) signaling is highly conserved and tightly regulated by proteases including Pregnancy-Associated Plasma Protein A (PAPP-A). PAPP-A and its paralog PAPP-A2 are metalloproteases that mediate IGF bioavailability through cleavage of IGF binding proteins (IGFBPs). Here, we present single-particle cryo-EM structures of the catalytically inactive mutant PAPP-A (E483A) in complex with a peptide from its substrate IGFBP5 (PAPP-ABP5) and also in its substrate-free form, by leveraging the power of AlphaFold to generate a high quality predicted model as a starting t

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Miangolarra, Ander Movilla, and Michele Castellana. "On Non-ideal Chemical-Reaction Networks and Phase Separation." Journal of Statistical Physics 190, no. 1 (2022). http://dx.doi.org/10.1007/s10955-022-03037-8.

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AbstractMuch of the theory on chemical-reaction networks (CRNs) has been developed in the ideal-solution limit, where interactions between the solutes are negligible. However, there is a large variety of phenomena in biological cells and soft-matter physics which appear to deviate from the ideal-solution behaviour. Particularly striking is the case of liquid-liquid phase separation, which is typically caused by inter-particle interactions. Here, we revisit a number of known results in the domain of ideal CRNs, and we generalise and adapt them to arbitrary interactions between the solutes which

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Subramaniam, Arvin, Manoj Kumar, Shashi Thutupalli, and Rajesh Singh. "Rigid flocks, undulatory gaits, and chiral foldamers in a chemically active polymer." New Journal of Physics, August 2, 2024. http://dx.doi.org/10.1088/1367-2630/ad6a7c.

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Abstract Active matter systems - such as a collection of active colloidal particles - operate far from equilibrium with complex inter-particle interactions that govern their collective dynamics. Predicting the collective dynamics of such systems may aid the design of self-shaping structures comprised of active colloidal units with a prescribed dynamical function. Here, using simulations and theory, we study the collective dynamics of a chain consisting of active Brownian particles with internal interactions via trail-mediated chemicals, connected by harmonic springs in two dimensions to obtain

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Chatzittofi, Michalis, Jaime Agudo-Canalejo, and Ramin Golestanian. "Nonlinear response theory of molecular machines." Europhysics Letters, August 2, 2024. http://dx.doi.org/10.1209/0295-5075/ad6a7e.

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Abstract Chemical affinities are responsible for driving active matter systems out of equilibrium. At the nano-scale, molecular machines interact with the surrounding environment and are subjected to external forces. The mechano-chemical coupling which arises naturally in these systems reveals a complex interplay between chemical and mechanical degrees of freedom with strong impact on their active mechanism. By considering various models far from equilibrium, we show that the tuning of applied forces give rise to a nonlinear response that causes a non-monotonic behaviour in the machines' activ

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Zhou, Gordon G. D., Kahlil F. E. Cui, Lu Jing, et al. "Segregation‐Induced Flow Transitions in Rock‐Ice Mixtures: Implications for Rock‐Ice Avalanche Dynamics." Journal of Geophysical Research: Earth Surface 129, no. 9 (2024). https://doi.org/10.1029/2024jf007831.

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AbstractGlobal climate change has been intensifying the scale and frequency of rock‐ice avalanches and similar catastrophic mass movements in high‐mountain regions. The difference in the physical characteristics of rock and ice particles leads to mixing and segregation during flow. Although, both particle segregation and the presence of ice fundamentally alter flow behavior, the joint influence and feedback of these two aspects are overlooked in state‐of‐the‐art rock‐ice avalanche models. Using discrete element simulations, we show that by controlling the distribution of inter‐particle frictio

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Saeedipour, Mahdi, and Simon Schneiderbauer. "Toward a universal description of multiphase turbulence phenomena based on the vorticity transport equation." Physics of Fluids, July 1, 2022. http://dx.doi.org/10.1063/5.0098824.

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Understanding the evolution of turbulence in multiphase flows remains achallenge due to the complex inter-phase interactions at different scales. This paper attempts to enlighten the multiphase turbulence phenomenon from a new perspective by exploiting the classical concept of vorticity and its role in the evolution of the turbulent energy cascade. We start with the vorticity transport equations for two different multiphase flow formulations, which are one-fluid and two-fluid models. By extending the decaying homogeneous isotropic turbulence (HIT) problem to the multiphase flow context, we per

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