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Rising to Mach, the problem of establishing the unity of the physical essence of the Universe on all space-time scales of its evolution is, apparently, one of the main problems in contemporary epistemology. The issues are primarily... more
Rising to Mach, the problem of establishing the unity of the physical essence of the Universe on all space-time scales of its evolution is, apparently, one of the main problems in contemporary epistemology. The issues are primarily related to the problems of the dynamics of the Universe, namely, the need to postulate hypothetical entities - dark energy and dark matter, whose nature is unknown, but whose contribution to the energy content of the Universe is about 95%. A "severe trial for the entire fundamental theory" turned out to be a discrepancy of 120 orders of magnitude between the experimentally established value of the cosmological constant and the calculated value of the energy density of the physical vacuum. Sharp questions arise also regarding the physical essence of gravitation and the nature of its unique smallness as compared with other interactions - nuclear ones, strong and weak, as well as electromagnetic ones. Sufficiently acute problems in the perception o...
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Flicker-Noise Spectroscopy (FNS) as a new phenomenological approach for extracting information hidden in chaotic signals is presented. According to FNS, the information is stored in sequences of distinct types of irregularities — spikes,... more
Flicker-Noise Spectroscopy (FNS) as a new phenomenological approach for extracting information hidden in chaotic signals is presented. According to FNS, the information is stored in sequences of distinct types of irregularities — spikes, jumps, and discontinuities of derivatives of different orders of chaotic signals. FNS application to analysis of Parkinsonian tremor dynamics studied by using laser systems is demonstrated. FNS
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Rising to Mach, the problem of establishing the unity of the physical essence of the Universe on all space-time scales of its evolution is, apparently, one of the main problems in contemporary epistemology. The issues are primarily... more
Rising to Mach, the problem of establishing the unity of the physical essence of the Universe on all space-time scales of its evolution is, apparently, one of the main problems in contemporary epistemology. The issues are primarily related to the problems of the dynamics of the Universe, namely, the need to postulate hypothetical entities - dark energy and dark matter, whose nature is unknown, but whose contribution to the energy content of the Universe is about 95%. A "severe trial for the entire fundamental theory" turned out to be a discrepancy of 120 orders of magnitude between the experimentally established value of the cosmological constant and the calculated value of the energy density of the physical vacuum. Sharp questions arise also regarding the physical essence of gravitation and the nature of its unique smallness as compared with other interactions - nuclear ones, strong and weak, as well as electromagnetic ones. Sufficiently acute problems in the perception of the Universe as a single holistic system arise also at the level of microscales. First of all, we mean here the so called low-energy nuclear reactions, which are realized in the conditions of nonequilibrium low temperature plasma. The fundamental problems of such processes are usually not widely discussed, and many physicists are very critical of the very possibility of implementing such processes. Our main hypothesis for understanding the key problems of contemporary fundamental physics, including the indicated cosmological problems as well as a new class of electron-initiated nuclear chemical processes, is to introduce the basic reference system associated with the electromagnetic component of physical vacuum - EM vacuum of the expanding Universe, with a selection of global time t, being common for all points of the expanding Universe and measured starting from the time of t = 0, which corresponds to the Big Bang.
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ABSTRACT We use the anomalous-diffusion interpolation and parameterization procedure developed within the framework of flicker-noise spectroscopy (FNS) to characterize the stochastic variability of X-ray emission from accreting black hole... more
ABSTRACT We use the anomalous-diffusion interpolation and parameterization procedure developed within the framework of flicker-noise spectroscopy (FNS) to characterize the stochastic variability of X-ray emission from accreting black hole GRS 1915+105. Our analysis of the lightcurves with a sampling frequency of 16 Hz in soft and hard X-ray energy bands shows that the stochastic variability of soft-band lightcurves is mostly subdiffusive while the hard X-ray emission is characterized primarily by fractional Gaussian noise. The comparison of FNS parameters between the soft and hard energy bands (corresponding roughly to different X-ray emission mechanisms) implies that hard X-rays have more relative variability at higher frequencies and are characterized by shorter diffusion timescales than soft X-rays. We suggest that the differences in the stochastic variabilities may be attributed to changes in either the viscosity law in the accretion disk or the geometry of the accretion flow.
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Page 281. THE MECHANISM FOR IONIC AND WATER TRANSPORT IN NAFION MEMBRANES FROM RESONANCE DATA VITALY I. VOLKOV', EVGENY V. VOLKOV", SERGE F. TIMASHEV' * Karpov Institute of Physical Chemistry, 10. Vorontsovo Pole. Moscow.... more
Page 281. THE MECHANISM FOR IONIC AND WATER TRANSPORT IN NAFION MEMBRANES FROM RESONANCE DATA VITALY I. VOLKOV', EVGENY V. VOLKOV", SERGE F. TIMASHEV' * Karpov Institute of Physical Chemistry, 10. Vorontsovo Pole. Moscow. 103064. ...
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ABSTRACT Flicker-Noise Spectroscopy (FNS), a general approach to the extraction and parameterization of resonant and stochastic components contained in medical time series, is presented. The basic idea of FNS is to treat the correlation... more
ABSTRACT Flicker-Noise Spectroscopy (FNS), a general approach to the extraction and parameterization of resonant and stochastic components contained in medical time series, is presented. The basic idea of FNS is to treat the correlation links present in sequences of different irregularities, such as spikes, "jumps", and discontinuities in derivatives of different orders, on all levels of the spatiotemporal hierarchy of the system under study as main information carriers. The tools to extract and analyze the information are power spectra and difference moments (structural functions), which complement the information of each other. The structural function stochastic component is formed exclusively by "jumps" of the dynamic variable while the power spectrum stochastic component is formed by both spikes and "jumps" on every level of the hierarchy. The information "passport" characteristics that are determined by fitting the derived expressions to the experimental variations for the stochastic components of power spectra and structural functions are interpreted as the correlation times and parameters that describe the rate of "memory loss" on these correlation time intervals for different irregularities. The number of the extracted parameters is determined by the requirements of the problem under study. Application of this approach to the analysis of tremor velocity signals for a Parkinsonian patient is discussed.
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ABSTRACT A general phenomenological approach a Flicker Noise Spectroscopy (FNS)- to revelation of information valuable parameters characterizing the arbitrary chaotic surfaces was develop to distinguish their patterns and describe... more
ABSTRACT A general phenomenological approach a Flicker Noise Spectroscopy (FNS)- to revelation of information valuable parameters characterizing the arbitrary chaotic surfaces was develop to distinguish their patterns and describe quantitatively their functional properties. The consideration was carried out in terms of correlation lengths and additional parameters characterizing the rate of correlation links lost in the sequences of surface irregularities. The parameters are obtained by fitting the Fourier spectra and structural functions (difference moments of different orders) calculated for the digitized surface profiles using the approximations derived on the base of model representation of the profiles as the sequences of irregularities of different types ("bursts", "jumps", etc.). The method developed was applied to revelation of effects of a shungit filling agent in polypropylen matrix on the composite properties, revelation of hydrogen treatment effects on the cleavage surfaces of LiF monocrystals after their dissolution in water with quantitative evaluations of their anisotropy, analysis of activity of vacuum deposited porphyrins layers in a photosensibilized gnenration of singlet oxygen into gaseous phase. The approach elaborated can be used for developing the new control tools in nano-technologies, microelectronics, production of polymeric material with the specific surface properties, and others.
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We propose an interpolation expression using the difference moment (Kolmogorov transient structural function) of the second order as the average characteristic of displacements for identifying the anomalous diffusion in complex processes... more
We propose an interpolation expression using the difference moment (Kolmogorov transient structural function) of the second order as the average characteristic of displacements for identifying the anomalous diffusion in complex processes when the stochastic (the term "stochastic" in this paper refers to random variability in the signals of complex systems characterized by nonlinear interactions, dissipation, and inertia) dynamics of the system under study reaches a steady state (large time intervals). Our procedure based on this expression for identifying anomalous diffusion and calculating its parameters in complex processes is applied to the analysis of the dynamics of blinking fluorescence of quantum dots, x-ray emission from accreting objects, fluid velocity in Rayleigh-Bénard convection, and geoelectrical signal for a seismic area. For all four examples, the proposed interpolation is able to adequately describe the stochastic part of the experimental difference moment...
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ABSTRACT Foundations of Flicker-Noise Spectroscopy (FNS) which is a new phenomenological approach to extract information hidden in chaotic signals are presented. The information is formed by sequences of distinguished types of signal... more
ABSTRACT Foundations of Flicker-Noise Spectroscopy (FNS) which is a new phenomenological approach to extract information hidden in chaotic signals are presented. The information is formed by sequences of distinguished types of signal irregularities — spikes, jumps, and discontinuities of derivatives of different orders — at all space-time hierarchical levels of systems. The ability to distinguish irregularities means that parameters or patterns characterizing the totality of properties of the irregularities are distinguishably extracted from the power spectra S(f) (f — frequency) and difference moments Ф(p)(τ) (τ — temporal delay) of the pth order. It is shown that FNS method can be used to solve the problems of two types: to show of the parameters characterizing dynamics and peculiarities of structural organization of open complex systems; to reveal the precursors of the sharpest changes in the states of open dissipative systems of various nature on the base of a priori information about their dynamics. Applications of the FNS for getting information hidden in economical data (daily market prices for the Nasdaq- and Nikkei-Index time series) are presented.
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Research Interests: Mechanical Engineering, Stochastic Process, Analytical Chemistry, Statistical Physics, Nanotechnology, and 15 moreAtomic Force Microscopy, High Frequency, Steel, Nanostructures, Spatial Scale, Analytical Method, Theoretical Models, Low carbon steel, Surface Properties, Analyst, Flicker Noise, Anomalous Diffusion, Corrosion Resistance, Surface Texture, and Functional Properties
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A uniform matrix with randomly distributed impurity centers, which create an effective field repulsing particles that diffuse in the membrane and prevent the formation of “percolation” paths in “thick” membranes, is considered as a... more
A uniform matrix with randomly distributed impurity centers, which create an effective field repulsing particles that diffuse in the membrane and prevent the formation of “percolation” paths in “thick” membranes, is considered as a barrier layer model. Two repulsive potential types were analyzed, one decreasing according to a power law depending on the distance between the localization center of an impurity and the diffusing particle and the other decreasing exponentially as a function of this distance. An exponential dependence of the permeability constants of the desired components on the membrane layer thickness was predicted. According to this dependence, the components to be separated effectively pass through membrane layers only in local regions, where the force field that retards particles is weakened because of a fluctuation decrease in the concentration of centers repulsing the diffusing particles. The process is then characterized by nonequilibrium transmembrane transfer conditions, under which particles have time to be effectively “sorbed” only in regions of increased membrane permeability. Under these conditions, the selectivity of membrane separation can be influenced by the state of the surface of membranes. For this reason, the modification of the surface of barrier structures can be used to control their selective permeability to the desired products. Equations for the rate of component transfer through barrier membrane layers under the most general boundary conditions were obtained. These equations can be used to analyze separation on membranes with barrier structures subjected to surface modification.
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Certain trends in the development of chemical and related sciences as regards the solution of ecological problems are described. Apart from the discussion of traditional chemical problems associated with the development of resource-saving... more
Certain trends in the development of chemical and related sciences as regards the solution of ecological problems are described. Apart from the discussion of traditional chemical problems associated with the development of resource-saving and low-waste technologies and sensor systems for the monitoring of the natural environment, the physicochemical aspects of the dynamics of a wide variety of natural systems are
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The main principles of the functioning of transport systems in biological membranes and especially of processes involving the selective transport of ions and molecules in synthetic membranes (ion-exchange, gas separating, reverse osmosis,... more
The main principles of the functioning of transport systems in biological membranes and especially of processes involving the selective transport of ions and molecules in synthetic membranes (ion-exchange, gas separating, reverse osmosis, ultrafiltration, membranes, etc.) are examined. It is shown that, under the conditions of intense mass and electromass transfer, the transport of ions and molecules in synthetic membranes acquires
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... a Istituto di Metodologie per l'Analisi Ambientale, Consiglio Nazionale delle Ricerche, Tito Scalo (PZ) 85050, Italy. b L. Ya. ... 279298. Abstract | PDF (1471 K) | View Record in Scopus | Cited By in Scopus (26).... more
... a Istituto di Metodologie per l'Analisi Ambientale, Consiglio Nazionale delle Ricerche, Tito Scalo (PZ) 85050, Italy. b L. Ya. ... 279298. Abstract | PDF (1471 K) | View Record in Scopus | Cited By in Scopus (26). Deshcherevsky, AV, Lukk, AA and Sidorin, A.Ya., 2000. ...