- Experienced Professor with a demonstrated history of working in the higher education industry. Skilled in Research an... moreExperienced Professor with a demonstrated history of working in the higher education industry. Skilled in Research and Development (R&D), Mathematical Modeling, Matlab, Materials Science, and Physics. Strong education professional with a Doctor of Philosophy (Ph.D.) focused in RadioPhysics, inc. Quantum RadioPhysics from Kotelnikov's Institute of Radioengineering and Electronics. More than 200 publications, including a Springer bookedit
Numerical approaches for simulation of nanophotonic metadevices based on multilayer graphene metamaterials and metasurfaces are developed to solve the Maxwell`s equations rigorously with a model of the graphene surface conductivity... more
Numerical approaches for simulation of nanophotonic metadevices based on multilayer graphene metamaterials and metasurfaces are developed to solve the Maxwell`s equations rigorously with a model of the graphene surface conductivity determined from the Kubo formula. Using two methods, such as the approximate boundary conditions and volume integrodifferential equation approaches, the results of numerical modeling of reconfigurable terahertz (THz) broadband absorbers and reflection polarizers based on multilayer metasurfaces of rectangular graphene nanoribbons at the resonant THz frequencies were obtained. Using the deterministic electrodynamic model based on the autonomous blocks with Floquet channels (FABs) and the probabilistic model, the performances (including sensitivity to the casual changing of thickness of dielectric layers) of THz filters based on the periodic multilayer graphene-dielectric metamaterial, for the different number of layers and values of chemical potential were obtained.
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This article examines the physical basis of the superfast VLSI components for processing spatially modulated electromagnetic field signals. The analysis of the main physical effects which are capable to influence on VLSI components speed... more
This article examines the physical basis of the superfast VLSI components for processing spatially modulated electromagnetic field signals. The analysis of the main physical effects which are capable to influence on VLSI components speed is given. The possibility of fulfillment of subpicosecond analog and digital operations for spatially modulated signals with the help of passive microstrip micron-sized components is conducted The outcomes of subpicosecond switch simulation are discussed The integration concept for such elements in VLSI, constructed on principles ofa digital pseudo-holography is offered.
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Microwave (MW) irradiation is recognized as an effective tool in industries related to pharmaceuticals, chemistry, nanoparticle synthesis, food, etc. In the hardware field, some research efforts are concentrated on creating miniature... more
Microwave (MW) irradiation is recognized as an effective tool in industries related to pharmaceuticals, chemistry, nanoparticle synthesis, food, etc. In the hardware field, some research efforts are concentrated on creating miniature reactors using low-cost technologies aimed at on-demand chemistry or parallel synthesis of many drugs. This paper reports on the development and characterization of novel miniature chemical-resistant glass-metal coaxial reactors based on a modified Liebig condenser. It is composed of two concentric glass tubes, one for the central conductor carrying MW current, and the other for the copper-foiled cylinder surrounding the first pipe. The gap between them is filled with a liquid that is pumped and evacuated by using shielded thin inlet/outlet glass tubes, which are melted and opened into this cylindrical cavity. The reactor's geometry allows for the direct soldering of miniature MW SMA coaxial connectors of 50-Ω impedance. The developed components are...
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In this paper an electronically controlled cold atom transfer is considered. Two atom streams are guided by wires carrying the DC and RF currents. The trapping areas can touch each other under certain critical values of these currents. At... more
In this paper an electronically controlled cold atom transfer is considered. Two atom streams are guided by wires carrying the DC and RF currents. The trapping areas can touch each other under certain critical values of these currents. At the touching point the atoms are transferred from one wire to another that reminiscent the synaptic effect in the brain. The discovered effect is applicable in quantum interferometry and controlled atom transfer. Key Words: cold atoms; magnetic traps; quantum registers; quantum
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A variable predicate logic processor (VPLP) is proposed for artificial intelligence (AI), robotics, computer-aided medicine, electronic security, and other applications. The development is realized as an accelerating unit in AI computing... more
A variable predicate logic processor (VPLP) is proposed for artificial intelligence (AI), robotics, computer-aided medicine, electronic security, and other applications. The development is realized as an accelerating unit in AI computing machines. The difference from known designs, the datapath of this processor consists of universal gates changing on-the-fly their logical styles-subsets of predicate logic according to the data type and implemented instructions. In this paper, the processor’s reconfigurable gates and the main units are proposed, designed, modeled, and verified using a Field-Programmable Gate Array (FPGA) board and corresponding computer-aided design (CAD) tool. The implemented processor confirmed its reconfigurability on-the-fly performing testing codes. This processor is interesting in accelerating AI computing, molecular and quantum calculations in science, cryptography, computer-aided medicine, robotics, etc.
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In this short communication, the results of the developments of novel glass-metal coaxial waveguide reactors are considered. They are designed on the base of the Liebig condenser, where the central glass channel is occupied by wire. The... more
In this short communication, the results of the developments of novel glass-metal coaxial waveguide reactors are considered. They are designed on the base of the Liebig condenser, where the central glass channel is occupied by wire. The outer shield is made of copper foil. A liquid flows between the central glass tube and shielded outer pipe, being pumped in and out through the shielded tubes. The reactors are excited through coaxial connectors. The developed devices show moderate loss and increased penetration depth needed for smooth heating of flowing liquids. The components are studied by measurements and simulations.
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In this message, the complete RNA sequences (GISAID) of Omicron (BA.1 and BA.2) SARS CoV-2 viruses are studied using the genomic ATG-walks. These walks are compared visually and numerically with a reference RNA (Wuhan, China, 2020), and... more
In this message, the complete RNA sequences (GISAID) of Omicron (BA.1 and BA.2) SARS CoV-2 viruses are studied using the genomic ATG-walks. These walks are compared visually and numerically with a reference RNA (Wuhan, China, 2020), and the deviation levels are estimated. Statistical characteristics of these distributions are compared, including the fractal dimension values of coding-word length distributions. Most of the 17 RNA ATG walks studied here show relatively small deviations of their characteristics and resistance to forming a new virus family.
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In this conference paper, a set of multi-logics gates is proposed, designed, and verified. They are applicable for a novel type of application-specific processors based on predicate logic. These gates produce results equal to eight... more
In this conference paper, a set of multi-logics gates is proposed, designed, and verified. They are applicable for a novel type of application-specific processors based on predicate logic. These gates produce results equal to eight different types of logic operations which are suitable for artificial intelligence applications. To avoid the time-consuming program emulations of the above-mentioned logic in Boolean machines, the predicate signals are mapped to the inputs and outputs of the modified electronic gates. They fulfill logical operations with elementary predicate expressions in a parallel micro-level manner, where the time reduction and new logical functionalities are reached. Proposed gates are designed and verified by means of Intel (formerly Altera) field-programmable gate array (FPGA) board together with its commercially available computer-aided design tools. The further research is with the design of a new on-the-fly multi-logics predicate processor architecture for arti...
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The worldwide spread of SARS-CoV-2 virus increases interest in the research of virus genomics This work aims to develop a new fast DNA walk algorithm based on big-data techniques and its following applications to multi-scale genomic... more
The worldwide spread of SARS-CoV-2 virus increases interest in the research of virus genomics This work aims to develop a new fast DNA walk algorithm based on big-data techniques and its following applications to multi-scale genomic analyses of viruses. In this paper, the distributions of atg codon-starting triplets are considered as the RNA schemes having relative stability towards mutations. The one-dimensional atg-trajectories are enabled by plotting positions of single nucleotides for tracking all possible modifications of RNAs. This multi-scale imaging with the geometry fractal analysis allows building the hierarchically classed trajectories on one plot, starting with the RNA fragments down to the walks of single nucleotides. The developed approach is applied to the study of genomes SARS CoV-2, MERS, Dengue, and Ebola viruses published in GenBank and GISAID databases to discover some essential properties of studied RNAs not seen before by other models. Funding Information: No...
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This work aims to study the virus RNAs using a novel accelerated algorithm on exploring any-length genomic fragments in sequences using Hamming distance between the binary-expressed RNA symbols and explored pattern characters. The found... more
This work aims to study the virus RNAs using a novel accelerated algorithm on exploring any-length genomic fragments in sequences using Hamming distance between the binary-expressed RNA symbols and explored pattern characters. The found repetitive genomic sub-sequences of different lengths were placed on one plot as genomic trajectories (walks) to increase the effectiveness of geometrical multi-scale genomic studies. Primary attention was paid to the building and analysis of the atg-triplet walks composing the schemes or skeletons of the viral RNAs. The 1-D distributions of these codon-starting atg-triplets were built with the single-symbol walks for full-scale analyses. The visual examination was followed by calculating statistical parameters of genomic sequences, including the estimation of geometry deviation and fractal properties of inter-atg distances. This approach was applied to the SARS CoV-2, MERS CoV, Dengue and Ebola viruses, whose complete genomic sequences are taken fro...
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The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits... more
The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits for fulfillment several subpicosecond spatial logical operations. This is confirmed by analysis of several physical effects in solids and micron circuits, which influence on time delay of signals. A subpicosecond circuit for spatially modulated signal switching is considered. An analogy between electromagnetic mode physics and several aspects of quantum mechanics is studied. On this base a new digital multi-valued device for spatially modulated signal processing is suggested and modeled. A conclusion on possibility to design a new threedimensional architecture of super-density IC has been made.
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In this paper, the control of the edge-mode spectrum of integer-Hall-effect 2D waveguides by electric field is proposed and modeled with the effective mass approach. Under certain found conditions, the applied transversal electric field... more
In this paper, the control of the edge-mode spectrum of integer-Hall-effect 2D waveguides by electric field is proposed and modeled with the effective mass approach. Under certain found conditions, the applied transversal electric field allows refining the modal spectrum from non-localized waves, and, additionally, it can switch the edge-mode from the propagating to the evanescent state, and it is interesting in the design of the edge-mode off and on logic components. These waveguides, arbitrary biased by potentials, are described by the Pauli spin-less charge equation, and they are simulated using the order reduction method of partial differential equations in its Kron s quantum-circuit representation. Additionally to the spectrum control mechanism, the influence of large-scale disorder of confinement potential and magnetic field on the edge localization and modal switching is studied
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An oversized microstrip waveguide shorted by a fence of conducting pins is simulated semianalytically using the transverse resonant method. A couple of differentially excited modes are calculated and compared with the first higher-order... more
An oversized microstrip waveguide shorted by a fence of conducting pins is simulated semianalytically using the transverse resonant method. A couple of differentially excited modes are calculated and compared with the first higher-order mode of a microstrip used for the same type of signaling. The results are interesting in high-speed electronics.
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It is assumed that the digital-like spatio-time brain activity might be caused by nontopological transformations of patterns in the cortex which is a linear, analog and active system. Such an effect can be modeled by topologically... more
It is assumed that the digital-like spatio-time brain activity might be caused by nontopological transformations of patterns in the cortex which is a linear, analog and active system. Such an effect can be modeled by topologically modulated spatio-time electromagnetic signals which theory is proposed in this paper. The logical operations are performed by passive components, and a theory of them is considered. Two gates of this sort are simulated. A short review on semiconductor hardware for spatial digital processing and computing is given.
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This paper is on the spatio-temporal signals with the topologically modulated electromagnetic fields. The carrier of the digital information is the topological scheme composed of the separatrices-manifolds and equilibrium positions of the... more
This paper is on the spatio-temporal signals with the topologically modulated electromagnetic fields. The carrier of the digital information is the topological scheme composed of the separatrices-manifolds and equilibrium positions of the field. The signals and developed hardware for their processing in the space-time domain are considered
The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits... more
The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits for fulfillment several subpicosecond spatial logical operations. This is confirmed by analysis of several physical effects in solids and micron circuits, which influence on time delay of signals. A subpicosecond circuit for spatially modulated signal switching is considered. An analogy between electromagnetic mode physics and several aspects of quantum mechanics is studied. On this base a new digital multi-valued device for spatially modulated signal processing is suggested and modeled. A conclusion on possibility to design a new threedimensional architecture of super-density IC has been made.
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A novel graphene H-waveguide is proposed for active terahertz components. A graphene film illuminated by strong pumping light shorts the parallel conductor plates. The terahertz modes propagating along this film are amplified at certain... more
A novel graphene H-waveguide is proposed for active terahertz components. A graphene film illuminated by strong pumping light shorts the parallel conductor plates. The terahertz modes propagating along this film are amplified at certain conditions. A rigorous electromagnetic (EM) quasi-linear method of analytical calculations of TEy and TMy eigenmodes is used in this paper to select these conditions. Among them is the use of bound TEy modes interacting with graphene plasmons at frequencies of negative graphene resistance, minimizing conductor loss associated with parallel plates, and excluding the current-crowding effect from the waveguide design. The limitations of the used theory are considered, and the applications of this waveguide are proposed.
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ABSTRACT A novel analytical pseudo-nonadiabatic approach to dynamics of rotating dipolar molecules in high-gradient microwave electric fields and applications for manipulating molecules in hollow coaxial nanoreactors are considered. The... more
ABSTRACT A novel analytical pseudo-nonadiabatic approach to dynamics of rotating dipolar molecules in high-gradient microwave electric fields and applications for manipulating molecules in hollow coaxial nanoreactors are considered. The translational and rotational equations of motion of a dipole in the electric and surface potentials of a nanocoax are derived using the Euler–Lagrange theorem, and their semi-analytical modifications are proposed for expediting simulations. The Maxwell distribution of initial velocities of dipoles is adopted in the simulations to take into account the effect of temperature. Using the developed approach, the translational and rotational dynamics of thermalised dipoles in the high-gradient alternating electric field of the nanocoaxial cell are studied. A relationship for the alternating field gradient force acting on the rotating dipole is derived. The regimes of attraction and repulsion of dipoles near the central nanoconductor are discovered and are shown to differently affect the translational and rotational velocities of the dipoles. The conditions for these two dynamical regimes are analytically found. The developed model and obtained results are applicable for modelling the dynamics of both ‘hot’ and ‘cooled’ dipoles in promising electrically-controlled coaxial and multiwire nanoreactors, chemical sensors, and in new molecular spectroscopes proposed in this contribution. GRAPHICAL ABSTRACT
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In this letter, a technique is introduced which allows calculations of linear and nonlinear Schrödinger equations by commercially available circuit simulators. The results derived using the Circuit Envelope Simulation tool in Agilent... more
In this letter, a technique is introduced which allows calculations of linear and nonlinear Schrödinger equations by commercially available circuit simulators. The results derived using the Circuit Envelope Simulation tool in Agilent Advanced Design System TM are tested by analytical calculations, and good correspondence is demonstrated.
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In this contribution, some applications of the earlier developed fast algorithm of calculating coordinates of single nucleotides and RNA fragments are considered to create multi-scale geometrical models of RNAs and their mutations. The... more
In this contribution, some applications of the earlier developed fast algorithm of calculating coordinates of single nucleotides and RNA fragments are considered to create multi-scale geometrical models of RNAs and their mutations. The algorithm allows to plot single nucleotides and RNA’s fragments on one figure and to track the RNA mutations of any level visually and numerically using interpolation formulas and point-to-point estimates of coordinates of ATG starting triplets and single nucleotides. The performed study of many samples of SARS CoV-2 viruses shows perturbations of ATG starting triplet coordinates in the vicinity of orf1ab gene end only.
Novel rectangular waveguides with graphene inserts biased by light are proposed herein. The graphene films short the conductor plates of waveguides and support the localized transverse-electric modes. Their electric fields are parallel to... more
Novel rectangular waveguides with graphene inserts biased by light are proposed herein. The graphene films short the conductor plates of waveguides and support the localized transverse-electric modes. Their electric fields are parallel to the wide walls of these waveguides, and the eigenmodes have decreased conductor loss. The designs do not involve the conductor and graphene strips with their sharp edges, and the loss associated with the current crowding effect is excluded. The waveguides are treated in the quasi-linear regime using a rigorous field matching method, and the complex dispersion eigenmodal equation is solved using a validated iteration algorithm. At the terahertz frequencies of amplification, where the real part of graphene conductivity is negative, a gain increase is found with the eigenmodal number. This gain can be tuned by the waveguide geometry, dielectric filling, and the level of quasi-Fermi energy. The ideal waveguide theory is corrected using a perturbation a...
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n this contribution, microwave-assisted heating of reference alcohols in miniature coaxial waveguide reactors is studied both experimentally and in simulations. The advantages and disadvantages of heating in the coaxial reactors are... more
n this contribution, microwave-assisted heating of reference alcohols in miniature coaxial waveguide reactors is studied both experimentally and in simulations. The advantages and disadvantages of heating in the coaxial reactors are considered, and the techniques of coaxial waveguide reactor improvements are proposed
In this abstract, the principles of the development of the optimal computer- and robotic health-care systems are proposed and considered as a means to improve the health service of the aging population. The results of the implementation... more
In this abstract, the principles of the development of the optimal computer- and robotic health-care systems are proposed and considered as a means to improve the health service of the aging population. The results of the implementation of a new created diagnosis system Anamnesis are analyzed and found prospective to use the modified processors for handling the predicated flow of information. It is proposed to develop a robotic system for healthcare including the cyber-physical systems for the rapid manufacturing of medicine on-demand using microwave-assisted reactors.
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The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits... more
The paper presents new results in the field of super high-speed and multi-valued signal processing. Writting digital information into spatial structures (topological charts) of electromagnetic field pulses allows to use passive circuits for fulfillment several subpicosecond spatial logical operations. This is confirmed by analysis of several physical effects in solids and micron circuits, which influence on time delay of signals.