Thickness Calculation of Thin Transparent Conductive Membrane on the Border with a Magnetic Fluid

Kandaurova, N. V.; Chekanov, V. S.

doi:10.21272/jnep.8(4(1)).04045

Cited by 5 publications

(5 citation statements)

References 1 publication

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“…The falling rays were reflected from the "electrode-magnetic liquid" border and were recorded by a camera (7). A constant or pulse voltage was applied to the electrodes (9). The prism (6) was used to separate the rays that reflected from the surface of the glass (5) and from the surface of the transparent ITO electrode.…”

Section: Methodsmentioning

confidence: 99%

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Autowave Processes in Magnetic Fluid: Electrically Controlled Interference

Chekanov¹,

Kandaurova²,

Drozdova³

et al. 2020

Nanofluid Flow in Porous Media

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The chapter considers autowaves that were observed in the thin near-electrode layer of concentrated magnetic fluid. Autowave process is a unique object for the study of self-organization. We observed pacemakers (leading centers), reverberators (spiral waves), and wave diffraction. A mechanism for the appearance of an autowave process has been developed; its mathematical model has been proposed and realized by means of computer simulation. As a basic method of observation, we used electrically controlled interference. This method watches the changes in the spectrum of reflected light from a two-layer structure with variable thickness: "conductive ITO coating-a layer of concentrated magnetic fluid" in an electric field.

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Section: Methodsmentioning

confidence: 99%

“…A technique for the calculation of the near-electrode layer thickness is presented in [9]. Depending on the cell voltage applied to the electrodes, the thickness of the layer varies up to 100 nm.…”

Section: "Fast" Autowave Modementioning

confidence: 99%

Autowave Processes in Magnetic Fluid: Electrically Controlled Interference

Chekanov¹,

Kandaurova²,

Drozdova³

et al. 2020

Nanofluid Flow in Porous Media

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“…A technique for the calculation of the nearelectrode layer thickness is presented in [1]. Depending on the cell voltage applied to the electrodes, the thickness of the layer varies up to 100 nm.…”

Section: "Fast" Autowaves Modementioning

confidence: 99%

“…If the surface of the cell is illuminated with monochromatic light (laser), information on the thickness of the near-electrode layer can be obtained from the intensity of the reflected beam [1]. Curve 2 in Fig.…”

Section: Relaxation Self-oscillations Modeling the Work Of The Heartmentioning

confidence: 99%

Excitation autowave spreading modes in the near-electrode layer of magnetic fluid

2018

MHD

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Autowaves arise in various media of chemical, physical, biological origin. An important example of an excitable active medium in which autowave processes occur are biological tissues, including myocardium. The spreading of the nerve impulse in the cardiac muscle is autowave by nature and obeys the universal laws of autowave spreading. Violation of the autowave spreading modes leads to serious pathologies. Control of the arising wave with the help of external influences makes it possible to eliminate such pathology. These considerations determine the importance of autowave process investigations. In this paper, we investigate the modes of autowave excitation spreading which were observed in the near-electrode layer of magnetic fluid.

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“…A unique feature of ferrocolloids is the formation of dense layers of magnetite particles with a protective shell near the electrodes in a constant electric field. The layer does not mix with the main volume of the liquid and behaves as a liquid ferrocolloid membrane [7][8][9][10]. The membrane is formed as a result of electrophoresis of particles of the dispersed phase.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study of Forced Synchronization of Self-Oscillations in Liquid Ferrocolloid Membranes

2022

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A ferrocolloid is a suspension of nanometer-sized ferromagnetic particles (magnetite) in a carrier liquid (kerosene). A unique feature of a ferrocolloid is the fact that layers consisting of densely packed particles are formed near the electrode surface under the influence of an external electric field. Each layer is a liquid membrane, and its formation significantly affects the various properties of the system. For example, the development of a unique phenomenon in a ferrocolloid is self-organization (self-oscillations and autowaves). The applied external periodic force leads to a change (capture) of the frequency of the autowave process-forced synchronization of autowaves. The experimentally obtained synchronization was investigated by the method of electrically controlled interference. After multiple experiments and theoretical studies, a physical mechanism for the synchronization of the autowave process in a cell with a ferrocolloid was proposed for the first time. A mathematical model of forced synchronization of autowaves, which is described by a system of nonlinear differential equations, was proposed for the first time as well. Adding an external periodic force into the model led to a change in the frequency of autowaves; synchronization by an external force was confirmed by computational experiments.

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Thickness Calculation of Thin Transparent Conductive Membrane on the Border with a Magnetic Fluid

Cited by 5 publications

References 1 publication

Autowave Processes in Magnetic Fluid: Electrically Controlled Interference

Autowave Processes in Magnetic Fluid: Electrically Controlled Interference

Excitation autowave spreading modes in the near-electrode layer of magnetic fluid

Experimental and Theoretical Study of Forced Synchronization of Self-Oscillations in Liquid Ferrocolloid Membranes

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