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Journal articles on the topic 'Vibrating particle system'

Author: Grafiati

Published: 4 June 2025

Last updated: 14 July 2025

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1

Yang, Huarui, and Xuedong Ma. "Research on the screening mechanisms of composite vibrating screens based on discrete elements." PLOS ONE 18, no. 10 (2023): e0293205. http://dx.doi.org/10.1371/journal.pone.0293205.

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To strengthen the screening efficiency of traditional vibrating screens, a new type of vibrating screen, namely the composite vibrating screen, has been proposed based on the Lissajous vibration synthesis theory. The working principles of composite vibrating screens have been explained. Numerical simulations of the sieving processes for such composite vibrating screens were carried out using the discrete element method. Compared with traditional linear vibrating screens, the force, stratification mechanisms, and throwing principles of the material on the screen’s surface were studied, and the

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2

Boyd, J. N., R. G. Hudepohl, and P. N. Raychowdhury. "Breaking the symmetry of a circular system of coupled harmonic oscillators." International Journal of Mathematics and Mathematical Sciences 29, no. 11 (2002): 665–74. http://dx.doi.org/10.1155/s0161171202006014.

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First we compute the natural frequencies of vibration of four identical particles coupled by ideal, massless harmonic springs. The four particles are constrained to move on a fixed circle. The initial computations are simplified by a transformation to symmetry coordinates. Then the symmetry of the vibrating system is broken by changing the mass of a single particle by a very small amount. We observe the effect of applying the symmetry transformation to the now slightly nonsymmetric system. We compute the new frequencies and compare them with the frequencies of the original symmetric system of

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3

Inoue, Masanobu, Isao Yokomichi, and Koju Hiraki. "Particle Damping with Granular Materials for Multi Degree of Freedom System." Shock and Vibration 18, no. 1-2 (2011): 245–56. http://dx.doi.org/10.1155/2011/309682.

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A particle damper consists of a bed of granular materials moving in cavities within a multi degree-of-freedom (MDOF) structure. This paper deals with the damping effects on forced vibrations of a MDOF structure provided with the vertical particle dampers. In the analysis, the particle bed is assumed to be a single mass, and the collisions between the granules and the cavities are completely inelastic, i.e., all energy dissipation mechanisms are wrapped into zero coefficient of restitution. To predict the particle damping effect, equations of motion are developed in terms of equivalent single d

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Andrade, Jéssica Cristiane, Fran Sérgio Lobato, Gustavo Barbosa Libotte, and Gustavo Mendes Platt. "Multi-objective optimization of vibrating particle systems applied to engineering system design." Ciência e Natura 46, esp. 1 (2024): e86556. http://dx.doi.org/10.5902/2179460x86556.

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The design of systems constitutes one of the most important pillars in engineering, in which it is desired to reduce costs, minimize time and resources, and guarantee the quality, efficiency, and safety of products. In recent decades, numerous population-based algorithms have been employed for this purpose. Among these, we can cite a new heuristic approach, the Vibrating Particles System (VPS) algorithm. This is based on simulating the free vibration of systems with one degree of freedom and viscous damping. The present work aims to extend the VPS to a multi-objective context. The results obta

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Li, Zhanfu, Xin Tong, Huihuang Xia, and Luojian Yu. "A study of particles looseness in screening process of a linear vibrating screen." Journal of Vibroengineering 18, no. 2 (2016): 671–81. http://dx.doi.org/10.21595/jve.2016.16563.

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We investigated the movement of particles in screening process over the sieve plate of a linear vibrating screen using the Discrete Element Method (DEM). The behavior of particles which is affected by a series of vibrational parameters including amplitude, frequency and vibration direction angle determining screening performance. This paper centers on particles looseness by analyzing the looseness coefficient and looseness rate. The relationships between the looseness coefficient, looseness rate and vibration parameters were profoundly discussed. Mathematical models relating looseness coeffici

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Żurawski, Mateusz, and Robert Zalewski. "Damping of Beam Vibrations Using Tuned Particles Impact Damper." Applied Sciences 10, no. 18 (2020): 6334. http://dx.doi.org/10.3390/app10186334.

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The presented paper reveals an innovative device which is the Tuned Particle Impact Damper (TPID). The damper enables the user change the dynamical features of the vibrating system thanks to rapidly tuning the volume of the container where the grains are locked. The effectiveness of proposed semi-active damping methodology was confirmed in experiments on vibrations of a cantilever beam excited by kinematic rule. Various damping characteristics captured for different volumes of the grains container and mass of granular material are presented. It is confirmed that the proposed TPID device allowe

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Zhao, Yue Jing, and Zhi Ying Qin. "Numerical Simulation of Vibration Sieve Based on DEM." Advanced Materials Research 482-484 (February 2012): 1358–61. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.1358.

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Vibrating sieve is a special kind of equipment which used to grading materials according to particle granularity. By the vibration acted on the sieve, the materials are loosed, are divided into layers, are transported and are permeated the sieve to screen the materials. Discrete Element Method (DEM) has been an effective numerical method to research the granule system motion. Using Particle Flow Code (PFC) based DEM, the screening process, the particle group motions on the screen, are simulated. How the amplitude, the frequency of vibration, the vibration direction angle, the decline degree of

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LAPSHIN, Vladimir, Nina NEMCHINOVA, and Victor MYAZIN. "Mathematical model for ore particles movement along the vibrating table of a separator." Sustainable Development of Mountain Territories 15, no. 1 (2023): 197–206. http://dx.doi.org/10.21177/1998-4502-2023-15-1-197-206.

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Introduction. One of the vibration methods for processing loose finely dispersed mineral raw materials is the separation method on a vibrating surface. Separation occurs according to size, shape of particles, coefficient of friction, elasticity and other mechanical parameters of particles. The efficiency of the separation process depends on the correct choice of technological characteristics of the working equipment. To solve such problems, mechano-rheological models are widely used. The issues of rational construction of research models, based on the specific conditions of the considered dyna

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Wang, Peng, and Yi Qun Du. "Research on a Co-Vibrating Vector Hydrophone with Central Fixed Structure." Advanced Materials Research 346 (September 2011): 835–41. http://dx.doi.org/10.4028/www.scientific.net/amr.346.835.

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Suspension system of a co-vibrating vector hydrophone need be designed carefully to reach the requirement of underwater acoustic measurement. Condition of vibration sensing of co-vibrating vector hydrophone is researched separately based on acoustic theory and mechanical vibration theory. A co-vibrating vector hydrophone with central fixed structure had been analyzed. The simplified model and equivalent circuit model of the proposed design were built for the analysis. The voltage response of the hydrophone to acoustic particle velocity is derived, and improvement of voltage sensitivity based o

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Li, Li, Yong Qing Gu, Wei Zhang, Mei Ying Qiao, and Hong Shen. "Study on the Controlling System of Particle Materials Separating Device." Advanced Materials Research 204-210 (February 2011): 895–98. http://dx.doi.org/10.4028/www.scientific.net/amr.204-210.895.

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The present thesis proposes the controlling program to separate the particle materials by making use of low-frequency ultrasonic wave, and elaborates the design of system circuit controlling the ultrasonic vibrating sieve. The ATMEGA16 SCM carries a series of functions into effect, such as, regulating the operating frequency of vibrating sieve, adjusting the power, protecting the circuit security and displaying the system parameter and so on, which raises the frequency stability and anti-jamming capability of the system so that it can be applied in places like coal mines, smelting works and co

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11

Guo, Qiang, Yuxuan Zhang, Azin Padash, Kenan Xi, Thomas M. Kovar, and Christopher M. Boyce. "Dynamically structured bubbling in vibrated gas-fluidized granular materials." Proceedings of the National Academy of Sciences 118, no. 35 (2021): e2108647118. http://dx.doi.org/10.1073/pnas.2108647118.

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The dynamics of granular materials are critical to many natural and industrial processes; granular motion is often strikingly similar to flow in conventional liquids. Food, pharmaceutical, and clean energy processes utilize bubbling fluidized beds, systems in which gas is flowed upward through granular particles, suspending the particles in a liquid-like state through which gas voids or bubbles rise. Here, we demonstrate that vibrating these systems at a resonant frequency can transform the normally chaotic motion of these bubbles into a dynamically structured configuration, creating reproduci

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12

Lei, Xiaofei, Chengjun Wu, and Hengliang Wu. "A novel composite vibration control method using double-decked floating raft isolation system and particle damper." Journal of Vibration and Control 24, no. 19 (2017): 4407–18. http://dx.doi.org/10.1177/1077546317724967.

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This paper presents a composite vibration control method that uses a double-decked floating raft isolation system and particle dampers to control the severe vibration of a heavy compressor set. In view of the structural characteristics of the compressor set, a mechanical impedance method is employed to investigate the acceleration transfer ratios of the double-decked floating raft isolation system, and to design three isolating schemes. Numerical results indicate that the particle damping technology does not disturb the isolating performance of the double-decked floating raft isolation system

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Ni, Su Huan, and Qing Guo Chen. "Dynamic Research on Vibration-Impact Crushing System of a Bilateral Single-Mass." Advanced Materials Research 308-310 (August 2011): 1914–17. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1914.

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The vibrating roller crusher convert relative vibration generated by two rigid bodies to bring high-frequency impulse on grain layer (or granular) in chamber, which makes grain crush to particle. Based on the science of vibration, dynamics model in vibration-impact crushing system of a bilateral single-mass and vibration differential equations are established. By dynamic analysis, amplitude frequency curve, hysteresis impact curve and energy absorption curve are all founded. The curves on dynamic response are discussed. Under the consideration of their results, displacement, velocity and accel

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Wang, D. Q., C. J. Wu, and R. C. Yang. "An Insight into the Analytical Models of Granular Particle Damping." Advanced Materials Research 819 (September 2013): 13–19. http://dx.doi.org/10.4028/www.scientific.net/amr.819.13.

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Granular particle damping technique is a means for achieving high structural damping by the use of metal particles filled into an enclosure which is attached to the structure in a region of high vibration levels. The particle dampers are now preferred over traditional dampers due to the stability, robustness, cost effectiveness and the lower noise level than the impact damper. Such a promising technique has been used successfully in many fields over the past 20 years. In this paper, a state-of-art review on the development of modeling for particle damping is presented. The fundamentals and ind

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15

Kaur, Arvinder, and Yugal Kumar. "A multi-objective vibrating particle system algorithm for data clustering." Pattern Analysis and Applications 25, no. 1 (2022): 209–39. http://dx.doi.org/10.1007/s10044-021-01052-1.

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16

Ahmad, Shahrul Izwan, Sapizah Rahim, Siti Aisyah Shamsudin, An'amt Mohamed Noor, Fadhlina Che Ros, and Fadhlul Wafi Badrudin. "Spheroid Nickel Nanoparticles Synthesized in CTAB Solution Using Gamma Radiation." Solid State Phenomena 317 (May 2021): 138–43. http://dx.doi.org/10.4028/www.scientific.net/ssp.317.138.

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Pure nickel nanoparticles with some paired grain shaped has been successfully synthesized using gamma radiation technique in aqueous system at ambient temperature without using reducing agent. Cetyl trimethylammonium bromide was used to prevent oxidation during radiolysis process and help to shape the nickel nanoparticles into spheroid. Synthesized nanoparticles were characterized using X-ray diffraction, tunnelling electron microscopy and vibrating sample magnetometer. The particles formed are crystallized with fcc phase without any oxidation state. The particle size ranging from 20 – 50 nm w

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Pihler-Puzović, D., and T. Mullin. "The timescales of granular segregation in horizontally shaken monolayers." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 469, no. 2157 (2013): 20130203. http://dx.doi.org/10.1098/rspa.2013.0203.

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The results of an experimental investigation of segregation phenomenon in thin layers of a binary multi-particle system on a horizontal vibrating tray are discussed. Complex structures are observed to emerge from initially mixed states and result from interaction of individual particles. Qualitatively different segregation states are found which have disparate timescales and these are shown to have a systematic dependence on the control parameters.

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Nazarenko, Ivan, and Serhii Oryshchenko. "DYNAMICS OF VIBRATION GRINDING WITH REGARD TO THE INFLUENCE OF SORTING MATERIAL ON ITS WORKING PARAMETERS." Construction Engineering, no. 1(38) (June 28, 2023): 25–33. http://dx.doi.org/10.32347/tb.2023.1-38.0104.

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The general calculation model of the screen system was determined - the material is based on the study of the interaction processes between the sieve and the crushed stone that was on the screen. The selected model of vibration movement of loose material made it possible to determine the qual-itative and quantitative characteristics of the dynamic impact on the working body. The sorting process is presented as some orderly process of movement of a large number of different particles in a layer on a sieve. The main provisions for the calculation of the main parameters of the screen are formulat

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19

Jiao, Xiaodong, Jin Tao, Hao Sun, and Qinglin Sun. "Modeling of Acoustic Vibration Theory Based on a Micro Thin Plate System and Its Control Experiment Verification." Sustainability 14, no. 22 (2022): 14900. http://dx.doi.org/10.3390/su142214900.

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As a novel control method, acoustic manipulation technology shows extraordinary talents in culturing of tissue and cell, microchip processing and research on material chemistry, which is closely relevant to the vibration modes and the driving signals of the acoustic system. In this paper, bringing up reasonable assumptions, from the perspective of vibration force analysis of a thin plate, the response function of the forced vibration thin plate is derived combining with the Green’s function. Simultaneously, the effective vibration frequencies of micro thin plate are determined. Using the finit

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20

Intanin, Apichai, Prawpan Inpota, Threeraphat Chutimasakul, Jonggol Tantirungrotechai, Prapin Wilairat, and Rattikan Chantiwas. "Development of a Simple Reversible-Flow Method for Preparation of Micron-Size Chitosan-Cu(II) Catalyst Particles and Their Testing of Activity." Molecules 25, no. 8 (2020): 1798. http://dx.doi.org/10.3390/molecules25081798.

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A simple flow system employing a reversible-flow syringe pump was employed to synthesize uniform micron-size particles of chitosan-Cu(II) (CS-Cu(II)) catalyst. A solution of chitosan and Cu(II) salt was drawn into a holding coil via a 3-way switching valve and then slowly pumped to drip into an alkaline solution to form of hydrogel droplets. The droplets were washed and dried to obtain the catalyst particles. Manual addition into the alkaline solution or employment of flow system with a vibrating rod, through which the end of the flow line is inserted, was investigated for comparison. A sampli

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21

Mayo, M., J. C. Petit, M. I. García de Soria, and P. Maynar. "Confined granular gases under the influence of vibrating walls." Journal of Statistical Mechanics: Theory and Experiment 2023, no. 12 (2023): 123208. http://dx.doi.org/10.1088/1742-5468/ad0828.

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Abstract In this paper we study the dynamics of a system composed of inelastic hard spheres or disks that are confined between two parallel vertically vibrating walls (the vertical direction is defined as the direction perpendicular to the walls). The distance between the two walls is supposed to be larger than twice the diameter of the particles so that the particles can pass over each other, but is still much smaller than the dimensions of the walls. Hence, the system can be considered to be quasi-two-dimensional (quasi-one-dimensional) in the hard spheres (disks) case. For dilute systems, a

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Krot, Pavlo, Radoslaw Zimroz, Anna Michalak, et al. "Development and Verification of the Diagnostic Model of the Sieving Screen." Shock and Vibration 2020 (June 18, 2020): 1–14. http://dx.doi.org/10.1155/2020/8015465.

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The minerals processing enterprises are widely using vibrating machines to separate different fractions of materials. Sieving efficiency is greatly dependent on particle trajectories, or orbit, of periodical motion over the sieving decks. A screening process is very dependable on design parameters such as the vibrator power, synchronisation of their drives, and oscillation frequency as well as the stiffness of supporting springs. Deterioration of supporting springs (stiffness reduction and cracks) due to cyclic loading and fatigue is difficult to determine by the visual inspection, static load

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Saeki, Masato, Takahiro Mizoguchi, and Mika Bitoh. "Particle damping: Noise characteristics and large-scale simulation." Journal of Vibration and Control 24, no. 17 (2017): 3920–30. http://dx.doi.org/10.1177/1077546317716345.

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The performance of a large-scale particle damper in a vertical vibrating system was investigated experimentally and theoretically. To use particle dampers on an industrial scale, their noise characteristics must be clarified and a large-scale simulation is essential. This paper presents the results of an experimental investigation of the effects of the particle material, mass ratio and diameter on the amount of noise generated by a particle damper. In the theoretical analysis, two computational methods for conducting large-scale simulations of particle damping are proposed. The validity of the

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KUMARAN, V. "Kinetic theory for a vibro-fluidized bed." Journal of Fluid Mechanics 364 (June 10, 1998): 163–85. http://dx.doi.org/10.1017/s0022112098001050.

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The velocity distribution function for a two-dimensional vibro-fluidized bed of particles of radius r is calculated using asymptotic analysis in the limit where (i) the dissipation of energy during a collision due to inelasticity or between successive collisions due to viscous drag is small compared to the energy of a particle and (ii) the length scale for the variation of density is large compared to the particle size. In this limit, it is shown that the parameters εG=rg/T0 and ε=U20/T0[Lt ]1, and ε and εG are used as small parameters in the expansion. Here, g is the acceleration due to gravi

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Yokomichi, I., Y. Araki, Y. Jinnouchi, and J. Inoue. "Impact Damper With Granular Materials for Multibody System." Journal of Pressure Vessel Technology 118, no. 1 (1996): 95–103. http://dx.doi.org/10.1115/1.2842169.

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An efficient impact damper consists of a bed of granular materials moving in a container mounted on a multibody vibrating system. This paper deals with the damping characteristics of a multidegree-of-freedom (MDOF) system that is provided with the impact damper when the damper may be applied to any point of the system. In the theoretical analysis, the particle bed is assumed to be a mass which moves unidirectionally in a container, and collides plastically with its end. Equations of motion are developed for an equivalent single-degree-of-freedom (SDOF) system and attached damper mass with use

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Pan, Jingwu, Jian Li, Guangyang Hong, and Jian Bai. "A mapping discrete element method for nonlinear dynamics of vibrating plate-particle coupling system." Powder Technology 385 (June 2021): 478–89. http://dx.doi.org/10.1016/j.powtec.2021.03.022.

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Hedrih, Andjelka, and Marinko Ugrcic. "Vibrational properties characterization of mouse embryo during microinjection." Theoretical and Applied Mechanics 40, no. 1 (2013): 189–202. http://dx.doi.org/10.2298/tam1301189h.

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To determine the vibration characteristics (natural frequencies and mode shapes) of a mouse embryo during microinjection the modal analysis is used. The spherical mouse embryo 60 ?m in diameter is modeled as elastic finite elements biostructure consisting of 6?m thick micromembrane and 38 ?m in diameter nucleus. Embryo modeling and modal analysis were based on the use of the finite elements method in the modal analysis system of ANSYS software. The modal analysis was carried out for first six modes of embryo natural frequencies. The numerical analysis of dependence of embryo own frequencies on

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Blaxter, J. H. S., and R. S. Batty. "Herring Behaviour in the Dark: Responses to Stationary and Continuously Vibrating Obstacles." Journal of the Marine Biological Association of the United Kingdom 65, no. 4 (1985): 1031–49. http://dx.doi.org/10.1017/s0025315400019494.

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The behaviour of herring subjected to stationary and vibrating obstacles in their swimming path was recorded in daylight and darkness using an infra-red sensitive TV system. The herring avoided stationary obstacles using visual stimuli and usually collided with such obstacles in darkness. They showed strong avoidance to a continuously vibrating sound source in darkness but the speed of turning was relatively slow and there was no evidence for habituation. As they approached the source they usually responded when the sound pressure reached 10–20 Pa, about 70 dB above the threshold. Particle vel

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Cunningham, Seán M., and David A. Tanner. "A Review: The Prospect of Inhaled Insulin Therapy via Vibrating Mesh Technology to Treat Diabetes." International Journal of Environmental Research and Public Health 17, no. 16 (2020): 5795. http://dx.doi.org/10.3390/ijerph17165795.

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Background: Inhaled insulin has proven to be viable and, in some aspects, a more effective alternative to subcutaneous insulin. Past and present insulin inhaler devices have not found clinical or commercial success. Insulin inhalers create a dry powder or soft mist insulin aerosol, which does not provide the required uniform particle size or aerosol volume for deep lung deposition. Methods: The primary focus of this review is to investigate the potential treatment of diabetes with a wet insulin aerosol. Vibrating mesh nebulisers allow the passive inhalation of a fine wet mist aerosol for the a

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BARRAT, ALAIN, and EMMANUEL TRIZAC. "INELASTIC HARD SPHERES WITH RANDOM RESTITUTION COEFFICIENT: A NEW MODEL FOR HEATED GRANULAR FLUIDS." Advances in Complex Systems 04, no. 04 (2001): 299–307. http://dx.doi.org/10.1142/s021952590100036x.

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We consider a vertically shaken granular system interacting elastically with the vibrating boundary, so that the energy injected vertically is transferred to the horizontal degrees of freedom through inter-particle collisions only. This leads to collisions which, once projected onto the horizontal plane, become essentially stochastic and may have an effective restitution coefficient larger than unity. We therefore introduce the model of inelastic hard spheres with random restitution coefficient α (larger or smaller than unity) to describe granular systems heated by vibrations. In the non-equil

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Dallas, Ronald H., Jason K. Rains, Keith Wilder, et al. "The Aerogen® Solo Is an Alternative to the Small Particle Aerosol Generator (SPAG-2) for Administration of Inhaled Ribavirin." Pharmaceutics 12, no. 12 (2020): 1163. http://dx.doi.org/10.3390/pharmaceutics12121163.

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Respiratory syncytial virus (RSV) is associated with adverse outcomes among immunocompromised patients. Inhaled ribavirin has been shown to improve mortality rates. The Small-Particle Aerosol Generator delivery system (SPAG-2) is the only FDA-cleared device to deliver inhaled ribavirin. However, it is difficult to set up and maintain. We developed a method for delivery of this medication using the vibrating mesh nebulizer (Aerogen®). We did not observe any adverse events with this method.

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Valani, Rahil N. "Lorenz-like systems emerging from an integro-differential trajectory equation of a one-dimensional wave–particle entity." Chaos: An Interdisciplinary Journal of Nonlinear Science 32, no. 2 (2022): 023129. http://dx.doi.org/10.1063/5.0076162.

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Vertically vibrating a liquid bath can give rise to a self-propelled wave–particle entity on its free surface. The horizontal walking dynamics of this wave–particle entity can be described adequately by an integro-differential trajectory equation. By transforming this integro-differential equation of motion for a one-dimensional wave–particle entity into a system of ordinary differential equations (ODEs), we show the emergence of Lorenz-like dynamical systems for various spatial wave forms of the entity. Specifically, we present and give examples of Lorenz-like dynamical systems that emerge wh

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Maier, Georg, Florian Pfaff, Andrea Bittner, et al. "Characterizing material flow in sensor-based sorting systems using an instrumented particle." at - Automatisierungstechnik 68, no. 4 (2020): 256–64. http://dx.doi.org/10.1515/auto-2019-0128.

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AbstractSensor-based sorting is a well-established single particle separation technology. It has found wide application as a quality assurance and control approach in food processing, mining, and recycling. In order to assure high sorting quality, a high degree of control of the motion of individual particles contained in the material stream is required. Several system designs, which are tailored to a sorting task at hand, exist. However, the suitability of a design for a sorting task is assessed by empirical observation. The required thorough experimentation is very time consuming and labor i

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Bassett, Daniel K., Alexander G. Carton, and John C. Montgomery. "Flowing water decreases hydrodynamic signal detection in a fish with an epidermal lateral-line system." Marine and Freshwater Research 57, no. 6 (2006): 611. http://dx.doi.org/10.1071/mf05193.

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The lateral-line system of the common bully, Gobiomorphus cotidianus, is unusual in that it possesses an extensive array of superficial neuromasts. Fish were trained to orientate to a small vibrating bead (50 Hz). By manipulating the amplitude of vibration to determine the threshold level for the behaviour, the hydrodynamic detection capabilities of the common bully were characterised in both still- and flowing-water. In still water, the common bully attained a detection threshold (calculated as the amplitude of water particle displacement at the snout) of 3.3 × 10−5 cm at 50 Hz. Successive el

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Yañez-Badillo, Hugo, Francisco Beltran-Carbajal, Ruben Tapia-Olvera, Antonio Favela-Contreras, Carlos Sotelo, and David Sotelo. "Adaptive Robust Motion Control of Quadrotor Systems Using Artificial Neural Networks and Particle Swarm Optimization." Mathematics 9, no. 19 (2021): 2367. http://dx.doi.org/10.3390/math9192367.

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Most of the mechanical dynamic systems are subjected to parametric uncertainty, unmodeled dynamics, and undesired external vibrating disturbances while are motion controlled. In this regard, new adaptive and robust, advanced control theories have been developed to efficiently regulate the motion trajectories of these dynamic systems while dealing with several kinds of variable disturbances. In this work, a novel adaptive robust neural control design approach for efficient motion trajectory tracking control tasks for a considerably disturbed non-linear under-actuated quadrotor system is introdu

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Nagarajan, Balakrishnan, Yingnan Wang, Maryam Taheri, et al. "Development and Characterization of Field Structured Magnetic Composites." Polymers 13, no. 17 (2021): 2843. http://dx.doi.org/10.3390/polym13172843.

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Polymer composites containing ferromagnetic fillers are promising for applications relating to electrical and electronic devices. In this research, the authors modified an ultraviolet light (UV) curable prepolymer to additionally cure upon heating and validated a permanent magnet-based particle alignment system toward fabricating anisotropic magnetic composites. The developed dual-cure acrylate-based resin, reinforced with ferromagnetic fillers, was first tested for its ability to polymerize through UV and heat. Then, the magnetic alignment setup was used to orient magnetic particles in the du

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Darini, Ali, Touba Eslaminejad, Seyed Noroddin Nematollahi Mahani, and Mehdi Ansari. "Magnetogel Nanospheres Composed of Cisplatin-Loaded Alginate/BCyclodextrinas Controlled Release Drug Delivery." Advanced Pharmaceutical Bulletin 9, no. 4 (2019): 571–77. http://dx.doi.org/10.15171/apb.2019.065.

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Purpose: The main aim of the present study was to design, fabrication and physicochemicalcharacteristics of the magnetogel nanospheres as carriers for Cisplatin in the in vitro environment.Methods: Magnetic nanospheres were synthesized by using a chemical co-precipitation methodand coated by sodium alginate through double emulsion method. Then cisplatin was encapsulatedinto β-cyclodextrin -sodium alginate grafted magnetic nanospheres. The physicochemicalproperties of the sodium alginate grafted magnetic nanospheres were characterized by using FTIR,particle size analyzing, vibrating sample magn

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Yaghoobi Ershadi, Nastaran, and José Manuel Menéndez. "Vehicle Tracking and Counting System in Dusty Weather with Vibrating Camera Conditions." Journal of Sensors 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/3812301.

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Traffic surveillance systems are interesting to many researchers to improve the traffic control and reduce the risk caused by accidents. In this area, many published works are only concerned about vehicle detection in normal conditions. The camera may vibrate due to wind or bridge movement. Detection and tracking of vehicles are a very difficult task when we have bad weather conditions in winter (snowy, rainy, windy, etc.) or dusty weather in arid and semiarid regions or at night, among others. In this paper, we proposed a method to track and count vehicles in dusty weather with a vibrating ca

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Ibrahim, Ahmed Hassan, and Yehia Abbas. "The effect of Tin additionon on Structural and magnetic properties of the stannoferrite Li0.5+0.5XFe2.5-1.5XSnXO4." JOURNAL OF ADVANCES IN PHYSICS 12, no. 3 (2016): 4307–21. http://dx.doi.org/10.24297/jap.v12i3.9.

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The physical properties of ferrites are verysensitive to microstructure, which in turn critically dependson the manufacturing process.Nanocrystalline Lithium Stannoferrite system Li0.5+0.5XFe2.5-1.5XSnXO4,X= (0, 0.2, 0.4, 0.6, 0.8 and 1.0) fine particles were successfully prepared by double sintering ceramic technique at pre-sintering temperature of 500oC for 3 h andthepre-sintered material was crushed and sintered finally in air at 1000oC.The structural and microstructural evolutions of the nanophase have been studied using X-ray powder diffraction (XRD) and the Rietveld method.The refinement

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M, Paknahad, Hakim S J S, Ibrahim M H W, and Chia Paknahad. "The Evolution of the Self-Adaptive Enhanced Vibrating Particle System (SA-EVPS) Algorithm for Optimizing Truss Structures." International Journal of Engineering Trends and Technology 73, no. 5 (2025): 383–94. https://doi.org/10.14445/22315381/ijett-v73i5p131.

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Rivera, Maria Morales, Ivan Betancourt, Segundo Martínez, et al. "Structural and magnetic properties of the Bi1-xLuxFeO3 (x = 0.00, 0.02 and 0.04) system." DYNA 87, no. 215 (2020): 84–89. http://dx.doi.org/10.15446/dyna.v87n215.83538.

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This paper reports the synthesis and characterization of Bi1-xLuxFeO3 (x = 0.00, 0.02 and 0.04) produced by solid-state reaction, in order to evaluate the influence of lutetium on the structural and magnetic properties of bismuth ferrite (BiFeO3). The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and magnetic analysis by vibrating sample magnetometer (VSM) in temperature range from 50 to 320 K. The obtained results allowed to confirm the formation of crystalline materials of rhombohedral structure, space-gr

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Fa, Lin, Lili Li, Hong Gong, et al. "Investigation of the Physical Mechanism of Acoustic Attenuation in Viscous Isotropic Solids." Micromachines 13, no. 9 (2022): 1526. http://dx.doi.org/10.3390/mi13091526.

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The traditional acoustic attenuation coefficient is derived from an analogy of the attenuation of an electromagnetic wave propagating inside a non-ideal medium, featuring only the attenuation of wave propagation. Nonetheless, the particles inside viscous solids have mass, vibrating energy, viscosity, and inertia of motion, and they go through transient and damping attenuation processes. Based on the long-wavelength approximation, in this paper, we use the energy conservation law to analyze the effect of the viscosity of the medium on acoustic attenuation. We derive the acoustic attenuation coe

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Mahendran, Manickam, Jorge Feuchtwanger, and Robert C. O'Handley. "Acoustic Energy Absorption in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy Polymer Composites." Advanced Materials Research 52 (June 2008): 87–94. http://dx.doi.org/10.4028/www.scientific.net/amr.52.87.

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The single crystal Ni-Mn-Ga and Ni-Mn-Ga particulate composites have responded to mechanical stress up to 1 kHz frequencies with significant acoustic attenuation. It has been observed that in Ni-Mn-Ga polymer composites, a heavy static load on both the ends of the system increases the acoustic stress amplitude and appears to have acoustic loss drops. The attenuation, as a function of frequency shows resonances in the displacement of the vibrating particle indicating the twin boundary motions. It is inferred that the resonances beyond the principal mode are highly damped in the Ni-Mn-Ga composi

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Blekhman, Iliya I., Leonid I. Blekhman, Vladislav S. Sorokin, Vladislav B. Vasilkov, and Kira S. Yakimova. "Surface and volumetric effects in a fluid subjected to high-frequency vibration." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 8 (2012): 2028–43. http://dx.doi.org/10.1177/0954406211433260.

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In this article, the results of experimental study of surface and volumetric effects arising in a fluid under the action of high-frequency vibration are considered. Some elements in the theory of the surface effects are analyzed with regard to their origin and interrelations with other similar phenomena. The height of splashing fountains on the fluid surface is assessed based on the analogy with particle bounce over a vibrating plane. It is found that the influence of vibration on the average velocity of fluid flow is more pronounced at such excitation parameters that enhance the surface effec

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Bartůněk, Vilém, David Sedmidubský, Štěpán Huber, Marie Švecová, Pavel Ulbrich, and Ondřej Jankovský. "Synthesis and Properties of Nanosized Stoichiometric Cobalt Ferrite Spinel." Materials 11, no. 7 (2018): 1241. http://dx.doi.org/10.3390/ma11071241.

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Nanoparticles with controllable sizes of ferrite spinel CoFe2O4 were formed by thermal treatment of cobalt-iron glycerolate. Thermal behavior during the heating was studied by differential thermal analysis combined with thermogravimetry. The precursor, as well as the prepared nanoparticles, were analyzed by a broad spectrum of analytic techniques (X-Ray photoelectron spectroscopy (XPS), X-Ray diffraction (XRD), Energy dispersive spectroscopy (EDS), Atomic absorption spectroscopy (AAS), Scanning electron microscopy (SEM), and Raman spectroscopy). The particle size of nanoparticles was obtained

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Çiftçi, Kübra, Muhammed Arif Şen, and Hasan Huseyin Bilgic. "VPSA-Based Transfer Function Identification of Single DoF Copter System." Volume 04 Issue 02 vm04, is02 (2023): 87–97. http://dx.doi.org/10.23890/ijast.vm04is02.0204.

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In this study, an experimental set of a Single-DoF Copter system is created and transfer functions that could model the dynamics of the physical system with high accuracy were investigated. In order to model the dynamics of the physical system with the highest accuracy, the five different transfer functions have been proposed, in which the zero and pole values are determined by optimizing with the Vibrating Particle System Algorithm. Integral Square Error (ISE), Integral Time Square Error (ITSE), Integral Absolute Error (IAE), Integral Time Absolute Error (ITAE) functions, which are widely use

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Zhang, Zheng Qiang, Qing Lin Xia, Guang Hua Guo, Hai Fa Zhang, and Cun Jun Dong. "Structure and Magnetic Properties of Ti-Co Co-Cubstituted Barium Hexaferrite." Key Engineering Materials 602-603 (March 2014): 951–55. http://dx.doi.org/10.4028/www.scientific.net/kem.602-603.951.

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Polycrystalline Ti-Co co-substituted M-type ferrites Ba (TiCo)xFe12-2xO19 (x=0.25,0.5, 0.75, 1.0 ) samples were prepared by the citrate precursor method. The particle structure and morphology of the products were characterized by X-ray powder diffraction (XRD) and Field Emission Scanning Electron Microscope (FE-SEM). The effects of the substitution rate on the magnetic properties of samples were analysed by magnetic measurement with the Vibrating Sample Magnetometer (VSM) of Physical Properties Measurement System (PPMS). The XRD patterns show that only one type of crystalline phase can be dete

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Shokuhfar, A., and S. S. S. Afghahi. "Size Controlled Synthesis of FeCo Alloy Nanoparticles and Study of the Particle Size and Distribution Effects on Magnetic Properties." Advances in Materials Science and Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/295390.

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In this research the size controlled synthesis of FeCo nanoparticles was done using a quaternary microemulsion system. X-ray diffraction and high resolution transmission electron microscopy of as-synthesized nanoparticles confirm the formation of FeCo alloy nanoparticles. The effects of two process parameters, namely, water to surfactant molar ratio and molar concentration of metal salts, on the size and size distribution of nanoparticles were discussed by the aid of transmission electron microscopy. The size dependency of magnetic properties was also investigated using a room temperature vibr

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Dexheimer, Darielle, Martin Airey, Erika Roesler, et al. "Evaluation of ARM tethered-balloon system instrumentation for supercooled liquid water and distributed temperature sensing in mixed-phase Arctic clouds." Atmospheric Measurement Techniques 12, no. 12 (2019): 6845–64. http://dx.doi.org/10.5194/amt-12-6845-2019.

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Abstract. A tethered-balloon system (TBS) has been developed and is being operated by Sandia National Laboratories (SNL) on behalf of the U.S. Department of Energy's (DOE) Atmospheric Radiation Measurement (ARM) User Facility in order to collect in situ atmospheric measurements within mixed-phase Arctic clouds. Periodic tethered-balloon flights have been conducted since 2015 within restricted airspace at ARM's Advanced Mobile Facility 3 (AMF3) in Oliktok Point, Alaska, as part of the AALCO (Aerial Assessment of Liquid in Clouds at Oliktok), ERASMUS (Evaluation of Routine Atmospheric Sounding M

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Ahmed Hisham Fathallah, Hussain S. Akbar, and Fatin M. Nawwab Al-Deen. "Preparation and Characterization of Superparamagnetic Iron Oxide Nanoparticles (Fe3O4) for Biological Applications." Tikrit Journal of Pure Science 26, no. 1 (2022): 83–91. http://dx.doi.org/10.25130/tjps.v26i1.103.

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Superparamagnetic iron oxide nanoparticles (SPIONs) are developed considering the importance of this class of in different fields of biochemical and biomedical applications owing to their distinctive chemical and physical properties. In this work, the preparation of iron oxide nanoparticles (SPIONs (using Co-precipitation method has been done as the most commonly used wet chemical method of magnetic nanoparticles preparation for biological applications. The SPIONs synthesis was based on sodium hydroxide (NaOH) mediated precipitation of Fe3+ and Fe2+ salts in an aqueous solution using trisodium

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