All Stories

  1. Central pattern generator based on self-sustained oscillator coupled to a chain of oscillatory circuits

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, March 2022, American Institute of Physics

    Alexander Hramov

  2. Erratum: “Extreme synchronization events in a Kuramoto model: The interplay between resource constraints and explosive transitions” [Chaos 31, 063103 (2021)]

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, December 2021, American Institute of Physics

    Alexander Hramov

  3. Coherent resonance in the distributed cortical network during sensory information processing

    Article • Scientific Reports, December 2019, Springer Science + Business Media

    Alexander Hramov

  4. From Novel Technology to Novel Applications: Comment on “An Integrated Brain-Machine Interface Platform With Thousands of Channels” by Elon Musk and Neuralink

    Article • Journal of Medical Internet Research, October 2019, JMIR Publications Inc.

    Alexander Hramov

  5. From Novel Technology to Novel Applications: Comment on “An Integrated Brain-Machine Interface Platform With Thousands of Channels” by Elon Musk and Neuralink (Preprint)

    Article • September 2019, JMIR Publications Inc.

    Alexander Hramov

  6. Percept-related EEG classification using machine learning approach and features of functional brain connectivity

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, September 2019, American Institute of Physics

    Prof. Alexander Pisarchik, Alexander Hramov

  7. Feed-forward artificial neural network provides data-driven inference of functional connectivity

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, September 2019, American Institute of Physics

    Alexander Hramov, Nikita Frolov

  8. Recognition of electroencephalographic patterns related to human movements or mental intentions with multiresolution analysis

    Article • Chaos Solitons & Fractals, September 2019, Elsevier

    Alexander Hramov

  9. Synchronization in ensembles of delay-coupled nonidentical neuronlike oscillators

    Article • Nonlinear Dynamics, August 2019, Springer Science + Business Media

    Alexander Hramov

  10. Chimera state in complex networks of bistable Hodgkin-Huxley neurons

    Article • August 2019, American Physical Society (APS)

    Alexander Hramov

  11. Visual and kinesthetic modes affect motor imagery classification in untrained subjects

    Article • Scientific Reports, July 2019, Springer Science + Business Media

    Alexander Hramov

  12. Analysis of motor activity using electromyogram signals

    Article • Information and Control Systems, June 2019, State University of Aerospace Instrumentation (SUAI)

    Alexander Hramov

  13. Methods of assessing the degree of synchronization of multichannel EEG recordings

    Article • June 2019, SPIE

    Alexander Hramov

  14. Separation between real and imaginary movements from multichannel EEG signals

    Article • June 2019, SPIE

    Alexander Hramov

  15. Statistical Properties and Predictability of Extreme Epileptic Events

    Article • Scientific Reports, May 2019, Springer Science + Business Media

    Alexander Hramov

  16. Novel Schemes of High-Power Relativistic Vircators

    Article • April 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  17. Brain noise estimation from MEG response to flickering visual stimulation

    Article • Chaos Solitons & Fractals X, March 2019, Elsevier

    Alexander Hramov

  18. From theory to experimental evidence

    Article • Physics of Life Reviews, March 2019, Elsevier

    Alexander Hramov

  19. Recognizing human movements by processing EEG-signals using multiresolution analysis

    Article • March 2019, SPIE

    Alexander Hramov

  20. Diagnostic principles of immature epileptic (proepileptic) EEG activity in rats with genetic predisposition to absence epilepsy

    Article • Information and Control Systems, February 2019, State University of Aerospace Instrumentation (SUAI)

    Alexander Hramov, Dr Evgenia Sitnikova

  21. Immediate effect of neurofeedback in passive BCI for alertness control

    Article • February 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  22. Recognizing Arm Motions by Fluctuation Analysis of EEG Signals

    Article • Technical Physics Letters, February 2019, Pleiades Publishing Ltd

    Alexander Hramov

  23. Increasing Human Performance by Sharing Cognitive Load Using Brain-to-Brain Interface

    Article • Frontiers in Neuroscience, December 2018, Frontiers

    Alexander Hramov

  24. Characteristics of noise-induced intermittency

    Article • Chaos Solitons & Fractals, December 2018, Elsevier

    Alexander Hramov

  25. Nonlinear effect of biological feedback on brain attentional state

    Article • Nonlinear Dynamics, November 2018, Springer Science + Business Media

    Alexander Hramov

  26. Effect of measuring noise on scaling characteristics in the dynamics of coupled chaotic systems

    Article • Chaos Solitons & Fractals, November 2018, Elsevier

    Alexander Hramov

  27. Analyzing Complex Dynamic Modes in Different Modifications of Relativistic Generators on a Virtual Cathode

    Article • Bulletin of the Russian Academy of Sciences Physics, November 2018, Allerton Press

    Alexander Hramov

  28. Detrended fluctuation analysis of EEG patterns associated with real and imaginary arm movements

    Article • Physica A Statistical Mechanics and its Applications, November 2018, Elsevier

    Alexander Hramov

  29. Dynamics of map-based neuronal network with modified spike-timing-dependent plasticity

    Article • The European Physical Journal Special Topics, November 2018, Springer Science + Business Media

    Alexander Hramov

  30. ALGORITHM FOR AUTOMATIC ESTIMATION OF HUMAN BRAIN ACTIVITY FEATURES DURING MENTAL TASK EVALUATION

    Article • Information and Control Systems, October 2018, State University of Aerospace Instrumentation (SUAI)

    Alexander Hramov

  31. Algorithm of Mathematical Analysis of Spatio-Temporal and Time-Frequency EEG Propertices for Human Personality Features Discover

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  32. Control of Human Psychophysiological Condition by the Neurointerface With Biological Feedback

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  33. Extreme events in epileptic EEG of rodents after ischemic stroke

    Article • The European Physical Journal Special Topics, October 2018, Springer Science + Business Media

    Alexander Hramov

  34. Influence of Stimulus Complexity on the Properties of Neural Activity During Perceptual Process

    Article • October 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  35. Assortative mixing in spatially-extended networks

    Article • Scientific Reports, September 2018, Springer Science + Business Media

    Alexander Hramov

  36. Human personality reflects spatio-temporal and time-frequency EEG structure

    Article • PLoS ONE, September 2018, PLOS

    Alexander Hramov

  37. Designing, Implementation and Use of Robotic Devices in the Social Sectors in Foreign Studies

    Article • September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  38. Double-Beam Millimeter-Wave Band BWT and TWT on a Spirally Bent Rectangular Waveguide

    Article • September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  39. Electronic Analog Front End for Brain-Computer Interface

    Article • September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  40. The Implementation of the Innovation Platform "Educational Potential of Hardware-Software Complexes Based on the Study and Interpretation of Brain Activity Patterns"

    Article • September 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  41. Macroscopic chimeralike behavior in a multiplex network

    Article • August 2018, American Physical Society (APS)

    Alexander Hramov

  42. Betweenness centrality in urban networks: revealing the transportation backbone of the country from the demographic data

    Article • IOP Conference Series Earth and Environmental Science, August 2018, Institute of Physics Publishing

    Alexander Hramov

  43. Artificial Neural Network Classification of Motor-Related EEG: An Increase in Classification Accuracy by Reducing Signal Complexity

    Article • Complexity, August 2018, Hindawi Publishing Corporation

    Prof. Alexander Pisarchik, Alexander Hramov

  44. Processes of virtual cathodes interaction in multibeam system

    Article • Physics of Plasmas, August 2018, American Institute of Physics

    Alexander Hramov

  45. Inter-layer competition in adaptive multiplex network

    Article • New Journal of Physics, July 2018, Institute of Physics Publishing

    Alexander Hramov

  46. Multiscale neural connectivity during human sensory processing in the brain

    Article • May 2018, American Physical Society (APS)

    Alexander Hramov

  47. Nonlinear dynamics of the complex multi-scale network

    Article • April 2018, SPIE

    Alexander Hramov

  48. Optimal spatiotemporal representation of multichannel EEG for recognition of brain states associated with distinct visual stimulus

    Article • April 2018, SPIE

    Alexander Hramov

  49. Analysis of the dispersion characteristics of the photonic crystal in the generator with intense relativistic electron beam

    Article • April 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  50. Regularities and mechanisms of development of instabilities in the system with intense relativistic electron beam

    Article • April 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  51. Artificial neural network detects human uncertainty

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, March 2018, American Institute of Physics

    Alexander Hramov

  52. Wavelet Method for Motor Activity Pattern Analysis on Experimental Data from Human Multichannel Electroencephalography for External Device Control

    Article • Information and Control Systems, March 2018, State University of Aerospace Instrumentation (SUAI)

    Alexander Hramov

  53. Brain-computer interface for alertness estimation and improving

    Article • February 2018, SPIE

    Alexander Hramov

  54. Control of epileptic seizures in WAG/Rij rats by means of brain-computer interface

    Article • February 2018, SPIE

    Alexander Hramov

  55. Detection of EEG-patterns associated with real and imaginary movements using detrended fluctuation analysis

    Article • February 2018, SPIE

    Alexander Hramov

  56. Effect of filtration of signals of brain activity on quality of recognition of brain activity patterns using artificial intelligence methods

    Article • February 2018, SPIE

    Alexander Hramov

  57. Nonlinear correlation method for the separation of couplings in EEG experiments with neural ensembles

    Article • February 2018, SPIE

    Alexander Hramov

  58. Nonlinear dynamics and coherent resonance in a network of coupled neural-like oscillators

    Article • February 2018, SPIE

    Alexander Hramov

  59. The study of human higher mental functions as they relate to neurophysiological processes and personal characteristics

    Article • February 2018, SPIE

    Alexander Hramov

  60. Nonlinear analysis of brain activity, associated with motor action and motor imaginary in untrained subjects

    Article • Nonlinear Dynamics, January 2018, Springer Science + Business Media

    Alexander Hramov

  61. Coherence resonance in stimulated neuronal network

    Article • Chaos Solitons & Fractals, January 2018, Elsevier

    Alexander Hramov

  62. MATHEMATICAL MODELLING OF THE NETWORK OF PROFESSIONAL INTERACTIONS

    Article • Izvestiya VUZ Applied Nonlinear Dynamics, January 2018, Saratov State University

    Alexander Hramov

  63. Modeling Instabilities in Relativistic Electronic Beams in the CST Particle Studio Environment

    Article • Mathematical Models and Computer Simulations, January 2018, Pleiades Publishing Ltd

    Alexander Hramov

  64. STATISTICAL CHARACTERISTICS OF NOISE-INDUCED INTERMITTENCY IN MULTISTABLE SYSTEMS

    Article • Izvestiya VUZ Applied Nonlinear Dynamics, January 2018, Saratov State University

    Alexander Hramov

  65. Visual perception affected by motivation and alertness controlled by a noninvasive brain-computer interface

    Article • PLoS ONE, December 2017, PLOS

    Alexander Hramov

  66. Self-similarity in explosive synchronization of complex networks

    Article • December 2017, American Physical Society (APS)

    Alexander Hramov

  67. Classifying the Perceptual Interpretations of a Bistable Image Using EEG and Artificial Neural Networks

    Article • Frontiers in Neuroscience, December 2017, Frontiers

    Alexander Hramov

  68. Amplification through chaotic synchronization in spatially extended beam-plasma systems

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, December 2017, American Institute of Physics

    Alexander Hramov

  69. Lyapunov analysis of the spatially discrete-continuous system dynamics

    Article • Chaos Solitons & Fractals, November 2017, Elsevier

    Alexander Hramov

  70. Recognizing of stereotypic patterns in epileptic EEG using empirical modes and wavelets

    Article • Physica A Statistical Mechanics and its Applications, November 2017, Elsevier

    Alexander Hramov, Dr Evgenia Sitnikova

  71. A study of the effect of random dopant-concentration fluctuations on current in semiconductor superlattices

    Article • Technical Physics Letters, October 2017, Pleiades Publishing Ltd

    Alexander Hramov

  72. Self-similarity of the desynchronization process in a network of generalized Kuramoto oscillators

    Article • Technical Physics Letters, October 2017, Pleiades Publishing Ltd

    Alexander Hramov

  73. Interaction of chimera states in a multilayered network of nonlocally coupled oscillators

    Article • Technical Physics Letters, August 2017, Pleiades Publishing Ltd

    Alexander Hramov

  74. Macroscopic and microscopic spectral properties of brain networks during local and global synchronization

    Article • July 2017, American Physical Society (APS)

    Alexander Hramov

  75. Nonlinear dynamics and bifurcation mechanisms in intense electron beam with virtual cathode

    Article • Physics Letters A, July 2017, Elsevier

    Alexander Hramov

  76. Adaptive filtering of electroencephalogram signals using the empirical-modes method

    Article • Technical Physics Letters, July 2017, Pleiades Publishing Ltd

    Alexander Hramov

  77. Model and software package for studying and optimizing generation characteristics of semiconductor superlattices

    Article • Mathematical Models and Computer Simulations, May 2017, Pleiades Publishing Ltd

    Alexander Hramov

  78. Dealing with noise and physiological artifacts in human EEG recordings: empirical mode methods

    Article • April 2017, SPIE

    Alexander Hramov

  79. Mathematical approach to recover EEG brain signals with artifacts by means of Gram-Schmidt transform

    Article • April 2017, SPIE

    Alexander Hramov

  80. Patterns recognition of electric brain activity using artificial neural networks

    Article • April 2017, SPIE

    Alexander Hramov

  81. Study of pattern formation in multilayer adaptive network of phase oscillators in application to brain dynamics analysis

    Article • April 2017, SPIE

    Alexander Hramov

  82. Study of multibeam relativistic vircator

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  83. Study of virpertron — Vircator with dielectric inserts

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  84. Tunable high-power microwave source based on the squeezed state of relativistic electron beam

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  85. Virtual cathode oscillator with elliptical resonator

    Article • April 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  86. A method of distinguishing between the characteristic phases of behavior in complex networks in the intermittent generalized synchronization regime

    Article • Technical Physics Letters, April 2017, Pleiades Publishing Ltd

    Alexander Hramov

  87. Artifact removal from EEG data with empirical mode decomposition

    Article • March 2017, SPIE

    Alexander Hramov

  88. Intermittent phase synchronization in human epileptic brain

    Article • March 2017, SPIE

    Alexander Hramov

  89. Numerical analysis of the chimera states in the multilayered network model

    Article • March 2017, SPIE

    Alexander Hramov

  90. Numerical and analytical investigation of the chimera state excitation conditions in the Kuramoto-Sakaguchi oscillator network

    Article • March 2017, SPIE

    Alexander Hramov

  91. Pattern formation in adaptive multiplex network in application to analysis of the complex structure of neuronal network of the brain

    Article • March 2017, SPIE

    Alexander Hramov

  92. Recognition and classification of oscillatory patterns of electric brain activity using artificial neural network approach

    Article • March 2017, SPIE

    Alexander Hramov

  93. Application of the dual-tree wavelet transform for digital filtering of noisy audio signals

    Article • Journal of Communications Technology and Electronics, March 2017, Pleiades Publishing Ltd

    Alexander Hramov

  94. Simulation of the development and interaction of instabilities in a relativistic electron beam under variation of the beam wall thickness

    Article • Plasma Physics Reports, March 2017, Pleiades Publishing Ltd

    Alexander Hramov

  95. Development of diocotron instability in the squeezed state of a relativistic electron beam

    Article • Bulletin of the Russian Academy of Sciences Physics, January 2017, Allerton Press

    Alexander Hramov

  96. Effect of the form and localization of doping density perturbations on the current characteristics in a semiconductor superlattice

    Article • Bulletin of the Russian Academy of Sciences Physics, January 2017, Allerton Press

    Alexander Hramov

  97. Is it possible to improve the university education with social networks: The opinion of students and teachers

    Article • October 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  98. Organization of virtual environment for interaction of university and high-tech sector of the economy

    Article • October 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  99. Controlling of the electric field profile in the miniband semiconductors in the presence of THz Bloch oscillations

    Article • September 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  100. 3D simulation of electron beam squeezed-state generation in a two-section drift tube and analysis of its characteristics

    Article • Technical Physics Letters, August 2016, Pleiades Publishing Ltd

    Alexander Hramov

  101. Noise-induced binary synchronization in nonlinear systems

    Article • Technical Physics Letters, July 2016, Pleiades Publishing Ltd

    Alexander Hramov

  102. Separation of coexisting dynamical regimes in multistate intermittency based on wavelet spectrum energies in an erbium-doped fiber laser

    Article • May 2016, American Physical Society (APS)

    Alexander Hramov

  103. Image denoising with the dual-tree complex wavelet transform

    Article • April 2016, SPIE

    Alexander Hramov

  104. Perspective sub-THz powerful microwave generator "nanovircator" for T-rays biomedical diagnostics

    Article • April 2016, SPIE

    Alexander Hramov

  105. Generalized synchronization in the complex network: theory and applications to epileptic brain

    Article • April 2016, SPIE

    Alexander Hramov

  106. Analysis of the characteristics of the synchronous clusters in the adaptive Kuramoto network and neural network of the epileptic brain

    Article • April 2016, SPIE

    Alexander Hramov

  107. Beam-plasma instability in charged plasma in the absence of ions

    Article • Physics of Plasmas, April 2016, American Institute of Physics

    Alexander Hramov

  108. Electric-field distribution in a quantum superlattice with an injecting contact: Exact solution

    Article • JETP Letters, April 2016, Pleiades Publishing Ltd

    Alexander Hramov

  109. Estimate of the degree of synchronization in the intermittent phase synchronization regime from a time series (model systems and neurophysiological data)

    Article • JETP Letters, April 2016, Pleiades Publishing Ltd

    Alexander Hramov

  110. Increase of generation frequency of relativistic electron beam with virtual cathode using the regimes with the developed instabilities

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  111. Investigation of beam-plasma instability in charged plasma in the absence of ions

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  112. Simulation of axial virtual cathode oscillator with photonic crystal foil grid structure output in CST Particle Studio

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  113. Space charge dynamics in a semiconductor superlattice affected by titled magnetic field and heating

    Article • Physics of Wave Phenomena, April 2016, Allerton Press

    Alexander Hramov

  114. Study of the squeezed state of electron beam in compound drift tube for the purpose of effective plasma frequency increase

    Article • April 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  115. Demonstration of brain noise on human EEG signals in perception of bistable images

    Article • March 2016, SPIE

    Alexander Hramov

  116. Estimation of degree of synchronization in epileptic brain

    Article • March 2016, SPIE

    Alexander Hramov

  117. Multilayer structure formation via homophily and homeostasis

    Article • March 2016, SPIE

    Alexander Hramov

  118. Analysis of the establishment of the global synchronization in complex networks with different topologies of links

    Article • March 2016, SPIE

    Alexander Hramov

  119. THz-range generation frequency growth in semiconductor superlattice coupled to external high-quality resonator

    Article • March 2016, SPIE

    Alexander Hramov

  120. Speech signal denoising with wavelet-transforms and the mean opinion score characterizing the filtering quality

    Article • March 2016, SPIE

    Alexander Hramov

  121. Emergence of a multilayer structure in adaptive networks of phase oscillators

    Article • Chaos Solitons & Fractals, March 2016, Elsevier

    Alexander Hramov

  122. Analyzing cluster formation in adaptive networks of Kuramoto oscillators by means of integral signals

    Article • Bulletin of the Russian Academy of Sciences Physics, February 2016, Allerton Press

    Alexander Hramov

  123. Digital filtering of noisy data concerned with the effect of the threshold level and choice of a wavelet

    Article • Journal of Communications Technology and Electronics, February 2016, Pleiades Publishing Ltd

    Alexander Hramov

  124. Establishing generalized synchronization in Rössler oscillator networks

    Article • Bulletin of the Russian Academy of Sciences Physics, February 2016, Allerton Press

    Alexander Hramov

  125. Methods of automated absence seizure detection, interference by stimulation, and possibilities for prediction in genetic absence models

    Article • Journal of Neuroscience Methods, February 2016, Elsevier

    Alexander Hramov

  126. Bifurcation phenomena in a semiconductor superlattice subject to a tilted magnetic field

    Article • Physics Letters A, January 2016, Elsevier

    Alexander Hramov

  127. The development and interaction of instabilities in intense relativistic electron beams

    Article • Physics of Plasmas, December 2015, American Institute of Physics

    Alexander Hramov

  128. Chaos and its suppression in a system of two coupled Rydberg atoms

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2015, Allerton Press

    Alexander Hramov

  129. Detecting specific oscillatory modes in the dynamics of erbium-doped fiber laser

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2015, Allerton Press

    Alexander Hramov

  130. Filtering as a way of varying the characteristics of intermittent behavior in two unidirectionally coupled tunnel diode generators

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2015, Allerton Press

    Alexander Hramov

  131. High-frequency impedance of semiconductor superlattice elements in external resonance system

    Article • Technical Physics Letters, December 2015, Pleiades Publishing Ltd

    Alexander Hramov

  132. Intermittency of intermittencies in characteristic oscillatory patterns on epileptic electroencephalograms

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2015, Allerton Press

    Alexander Hramov, Dr Evgenia Sitnikova

  133. Multistability in a relativistic electron beam with an overcritical current

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2015, Allerton Press

    Alexander Hramov

  134. The effect of the conductivity of drift chamber walls on the dynamics of a relativistic electron beam with a virtual cathode

    Article • Technical Physics Letters, December 2015, Pleiades Publishing Ltd

    Alexander Hramov

  135. Analytical expression for zero Lyapunov exponent of chaotic noised oscillators

    Article • Chaos Solitons & Fractals, September 2015, Elsevier

    Alexander Hramov

  136. Manifestations of intermittency in unidirectionally coupled Pierce diodes on different time scales

    Article • Nonlinear Dynamics, August 2015, Springer Science + Business Media

    Alexander Hramov

  137. Intermittency route to chaos and broadband high-frequency generation in semiconductor superlattice coupled to external resonator

    Article • Physical Review E, August 2015, American Physical Society (APS)

    Alexander Hramov

  138. Establishment of generalized synchronization in a network of logistic maps

    Article • Technical Physics Letters, August 2015, Pleiades Publishing Ltd

    Alexander Hramov

  139. Nanovircator: Promising THz electromagnetic radiation source

    Article • August 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  140. Studying transitions between different regimes of current oscillations generated in a semiconductor superlattice in the presence of a tilted magnetic field at various temperatures

    Article • Technical Physics Letters, August 2015, Pleiades Publishing Ltd

    Alexander Hramov

  141. Sub-THz/THz amplification in a semiconductor superlattice

    Article • August 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  142. The use of higher harmonics for Sub-THz generation in relativistic virtual cathode oscillator

    Article • August 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  143. Lyapunov exponent corresponding to enslaved phase dynamics: Estimation from time series

    Article • Physical Review E, July 2015, American Physical Society (APS)

    Alexander Hramov

  144. The boundary of generalized synchronization in complex dynamic systems

    Article • Technical Physics Letters, July 2015, Pleiades Publishing Ltd

    Alexander Hramov

  145. Intermittency of intermittencies at the phase synchronization boundary in the presence of noise

    Article • Technical Physics, June 2015, Pleiades Publishing Ltd

    Alexander Hramov

  146. High-power microwave amplifier based on overcritical relativistic electron beam without external magnetic field

    Article • Applied Physics Letters, April 2015, American Institute of Physics

    Alexander Hramov

  147. Effect of interminiband tunneling on the generation of current in a semiconducting superlattice

    Article • Technical Physics, April 2015, Pleiades Publishing Ltd

    Alexander Hramov

  148. Prospects of application of superconducting electrodynamic structures in electronic devices for their advancement to the terahertz range

    Article • Technical Physics, April 2015, Pleiades Publishing Ltd

    Alexander Hramov

  149. Time-frequency dynamics during sleep spindles on the EEG in rodents with a genetic predisposition to absence epilepsy (WAG/Rij rats)

    Article • March 2015, SPIE

    Alexander Hramov, Dr Evgenia Sitnikova

  150. Study of correlation between macroscopic and microscopic characteristics of adaptive networks with application to analysis of neural ensembles

    Article • March 2015, SPIE

    Alexander Hramov

  151. Time-frequency analysis of epileptic EEG patterns by means of empirical modes and wavelets

    Article • March 2015, SPIE

    Alexander Hramov, Dr Evgenia Sitnikova

  152. Effect of the electron beam modulation on the sub-THz generation in the vircator with the field-emission cathode

    Article • Journal of Plasma Physics, March 2015, Cambridge University Press

    Alexander Hramov

  153. Age-dependent seizures of absence epilepsy and sleep spindles dynamics in WAG/Rij rats

    Article • March 2015, SPIE

    Alexander Hramov, Dr Evgenia Sitnikova

  154. THz-generation in semiconductor superlattice in the external tilted magnetic field

    Article • March 2015, SPIE

    Alexander Hramov

  155. Analysis of structural patterns in the brain with the complex network approach

    Article • March 2015, SPIE

    Alexander Hramov

  156. The effect of collector doping on the high-frequency generation in strongly coupled semiconductor superlattice

    Article • EPL (Europhysics Letters), February 2015, Institute of Physics Publishing

    Alexander Hramov

  157. Sub-terahertz amplification in a semiconductor superlattice with moving charge domains

    Article • Applied Physics Letters, January 2015, American Institute of Physics

    Alexander Hramov

  158. A discrete time model system with “intermittent” intermittency

    Article • Technical Physics Letters, January 2015, Pleiades Publishing Ltd

    Alexander Hramov

  159. Effect of interminiband tunneling on complex processes in a semiconductor superlattice

    Article • Physics of Wave Phenomena, January 2015, Allerton Press

    Alexander Hramov

  160. Analyzing the formation of coherent structures in a helical electron flow with a virtual cathode

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  161. Analyzing the structure of a complex network on the basis of its macroscopic characteristics

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  162. Generalized synchronization of coupled virtual cathode generators

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  163. Investigating mechanisms of generation in a virtual cathode system using a 3D electron flow model

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  164. Magnetically tunable reflection-type oscillator based on a gyro-TWT

    Article • Technical Physics Letters, December 2014, Pleiades Publishing Ltd

    Alexander Hramov

  165. Model for studying collective charge transport at the ohmic contacts of a tightly coupled semiconductor nanostructure

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  166. Specific features of generalized synchronization in unidirectionally and mutually coupled mappings and flows: Method of phase tubes

    Article • Journal of Communications Technology and Electronics, December 2014, Pleiades Publishing Ltd

    Alexander Hramov

  167. Studying synchronization in a network of nonlinear oscillators with a complex topology of relations, according to integral registered characteristics

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  168. Time-frequency analysis of characteristic patterns of the activity of neuron ensembles in the brain by means of continuous wavelet transform

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov, Dr Evgenia Sitnikova

  169. Transition to chaos and chaotic generation in a semiconductor superlattice coupled to an external resonator

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2014, Allerton Press

    Alexander Hramov

  170. Cooperation of deterministic and stochastic mechanisms resulting in the intermittent behavior

    Article • Chaos Solitons & Fractals, November 2014, Elsevier

    Alexander Hramov

  171. Analysis of complex turbulent dynamics of an electron beam in a low-voltage vircator as a part of 3D electromagnetic simulation

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  172. Astronomo-climatic cycles in the sequence of Upper Cretaceous sediments of the Saratov Volga Region

    Article • Moscow University Geology Bulletin, September 2014, Allerton Press

    Alexander Hramov

  173. Formation of coherent structures in helical electron beam with a virtual cathode

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  174. Study of oscillation modeswith intensive higher harmonics in a relativistic electron beam with a virtual cathode

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  175. Study of relativistic virtode in CST Particle Studio

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  176. The effect of emitter and collector parameters on the collective electron transport properties in a semiconductor superlattice

    Article • September 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  177. The effect of an external signal on output microwave power of a low-voltage vircator

    Article • Physics Letters A, June 2014, Elsevier

    Alexander Hramov

  178. Invesigation and optimization of the double-gap vircator in CST Particle Studio

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  179. Method of the calculation of spectrum of Lyapunov exponents for the analysis of dynamics of beam-plasma systems

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  180. Power of microwave radiation of the relativistic electron beam with virtual cathode in the external magnetic field

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  181. Power of microwave radiation of the relativistic electron beam with virtual cathode in the external magnetic field

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Alexander Hramov

  182. Generalized synchronization in the action of a chaotic signal on a periodic system

    Article • Technical Physics, May 2014, Pleiades Publishing Ltd

    Alexander Hramov

  183. Subterahertz Chaos Generation by Coupling a Superlattice to a Linear Resonator

    Article • Physical Review Letters, March 2014, American Physical Society (APS)

    Alexander Hramov

  184. Fast algorithm for numerically integrating equations of motion for large particles in microwave devices

    Article • Technical Physics, March 2014, Pleiades Publishing Ltd

    Alexander Hramov

  185. Developmental Changes in the Frequency-Time Structure of Sleep Spindles on the EEG in Rats with a Genetic Predisposition to Absence Epilepsy (WAG/Rij)

    Article • Neuroscience and Behavioral Physiology, February 2014, Springer Science + Business Media

    Alexander Hramov, Dr Evgenia Sitnikova

  186. Using the spectrum of Lyapunov exponents to analyze the dynamics of beam-plasma systems simulated by the large particle method

    Article • Bulletin of the Russian Academy of Sciences Physics, February 2014, Allerton Press

    Alexander Hramov

  187. ЭЭГ незрелорождающихся птенцов мухоловки-пеструшки при состояниях, связанных с циклом естественного поведения

    Article • Журнал высшей нервной деятельности им И П Павлова, January 2014, Akademizdatcenter Nauka

    Alexander Hramov, Dr Evgenia Sitnikova

  188. Formation and nonlinear dynamics of the squeezed state of a helical electron beam with additional deceleration

    Article • Plasma Physics Reports, November 2013, Pleiades Publishing Ltd

    Alexander Hramov

  189. Lyapunov stability of charge transport in miniband semiconductor superlattices

    Article • Physical Review B, October 2013, American Physical Society (APS)

    Alexander Hramov

  190. Serial identification of EEG patterns using adaptive wavelet-based analysis

    Article • The European Physical Journal Special Topics, October 2013, Springer Science + Business Media

    Alexander Hramov, Dr Evgenia Sitnikova

  191. Synchronization in the network of chaotic microwave oscillators

    Article • The European Physical Journal Special Topics, October 2013, Springer Science + Business Media

    Alexander Hramov

  192. Intermittency of intermittencies

    Article • Chaos An Interdisciplinary Journal of Nonlinear Science, August 2013, American Institute of Physics

    Alexander Hramov

  193. Adaptive wavelet transform-based method for recognizing characteristic oscillatory patterns

    Article • Journal of Communications Technology and Electronics, August 2013, Pleiades Publishing Ltd

    Alexander Hramov, Dr Evgenia Sitnikova

  194. Microwave radiation power of relativistic electron beam with virtual cathode in the external magnetic field

    Article • Applied Physics Letters, July 2013, American Institute of Physics

    Alexander Hramov

  195. Theoretical and numerical investigation of “intermittent” intermittency in coupled chaotic systems

    Article • Technical Physics Letters, July 2013, Pleiades Publishing Ltd

    Alexander Hramov

  196. Inapplicability of an auxiliary-system approach to chaotic oscillators with mutual-type coupling and complex networks

    Article • Physical Review E, June 2013, American Physical Society (APS)

    Alexander Hramov

  197. Adaptive wavelet-based recognition of oscillatory patterns on electroencephalograms

    Article • February 2013, SPIE

    Alexander Hramov, Dr Evgenia Sitnikova

  198. On-off intermittency of thalamo-cortical neuronal network oscillations in the electroencephalogram of rodents with genetic predisposition to absence epilepsy

    Article • February 2013, SPIE

    Alexander Hramov, Dr Evgenia Sitnikova

  199. Generalized synchronization in discrete maps. New point of view on weak and strong synchronization

    Article • Chaos Solitons & Fractals, January 2013, Elsevier

    Alexander Hramov

  200. Transition to microwave generation in semiconductor superlattice

    Article • Physics of Wave Phenomena, January 2013, Allerton Press

    Alexander Hramov

  201. Dynamics of an electron beam with a virtual cathode in a vircator without a magnetic field and with drift space filled by neutral gas

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2012, Allerton Press

    Alexander Hramov

  202. High-frequency impedance and absorption of a semiconductor lattice upon an external periodic perturbation

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2012, Allerton Press

    Alexander Hramov

  203. Automatic extraction and analysis of oscillatory patterns on nonstationary EEG signals by means of wavelet transform and the empirical modes method

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2012, Allerton Press

    Alexander Hramov, Dr Evgenia Sitnikova

  204. Studying the behavior of a nonautonomous Van der Pol oscillator in different time scales with the presence of noise near the synchronization boundary

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2012, Allerton Press

    Alexander Hramov

  205. Weak and strong generalized chaotic synchronization

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2012, Allerton Press

    Alexander Hramov

  206. Effect of self-magnetic fields on the nonlinear dynamics of relativistic electron beam with virtual cathode

    Article • Physics of Plasmas, November 2012, American Institute of Physics

    Alexander Hramov

  207. Effect of external signal on the output power of an oscillator with electron feedback

    Article • Technical Physics Letters, November 2012, Pleiades Publishing Ltd

    Alexander Hramov

  208. Generalized synchronization in complex networks

    Article • Technical Physics Letters, October 2012, Pleiades Publishing Ltd

    Alexander Hramov

  209. Wavelet analysis in neurodynamics

    Article • Physics-Uspekhi, September 2012, Uspekhi Fizicheskikh Nauk (UFN) Journal

    Alexander Hramov, Dr Evgenia Sitnikova

  210. Generalized synchronization in mutually coupled oscillators and complex networks

    Article • Physical Review E, September 2012, American Physical Society (APS)

    Alexander Hramov

  211. Computation of the spectrum of spatial Lyapunov exponents for the spatially extended beam-plasma systems and electron-wave devices

    Article • Physics of Plasmas, August 2012, American Institute of Physics

    Alexander Hramov

  212. On–off intermittency of thalamo-cortical oscillations in the electroencephalogram of rats with genetic predisposition to absence epilepsy

    Article • Brain Research, February 2012, Elsevier

    Alexander Hramov, Dr Evgenia Sitnikova

  213. Experimental and theoretical investigations of the influence of the external noise on dynamics of a klystron oscillator

    Article • Journal of Communications Technology and Electronics, January 2012, Pleiades Publishing Ltd

    Alexander Hramov

  214. Effect of temperature on resonant electron transport through stochastic conduction channels in superlattices

    Article • Physical Review B, December 2011, American Physical Society (APS)

    Alexander Hramov

  215. Characteristics of generation in a chain of unidirectionally coupled low-voltage vircators

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2011, Allerton Press

    Alexander Hramov

  216. Choosing the state of a spatially distributed system in calculating a spectrum of Lyapunov exponents

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2011, Allerton Press

    Alexander Hramov

  217. Influence of external nonuniform magnetic field on the spectral characteristics of a virtual cathode oscillator’s output radiation

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2011, Allerton Press

    Alexander Hramov

  218. Chaotic oscillations in electron beam with virtual cathode in external magnetic field

    Article • International Journal of Electronics, November 2011, Taylor & Francis

    Alexander Hramov

  219. Nearest neighbors, phase tubes, and generalized synchronization

    Article • Physical Review E, September 2011, American Physical Society (APS)

    Alexander Hramov

  220. Digital filtering and time-and-frequency analysis of nonstationary signals on the basis of wavelets and empirical modes

    Article • Journal of Communications Technology and Electronics, September 2011, Pleiades Publishing Ltd

    Alexander Hramov

  221. Appearance of generalized synchronization in mutually coupled beam-plasma systems

    Article • Technical Physics Letters, July 2011, Pleiades Publishing Ltd

    Alexander Hramov

  222. Intermittent behavior at the time scale synchronization boundary

    Article • Technical Physics, July 2011, Pleiades Publishing Ltd

    Alexander Hramov

  223. Effect of noise on generalized synchronization of chaos: theory and experiment

    Article • The European Physical Journal B, June 2011, Springer Science + Business Media

    Alexander Hramov

  224. Partial spatial synchronization of chaotic oscillations in the Ginzburg-Landau equation

    Article • Physics of Wave Phenomena, May 2011, Allerton Press

    Alexander Hramov

  225. Simulation of oscillatory processes in a beam-plasma system with a virtual cathode in gas-filled interaction space

    Article • Plasma Physics Reports, May 2011, Pleiades Publishing Ltd

    Alexander Hramov

  226. Output microwave radiation power of low-voltage vircator with external inhomogeneous magnetic field

    Article • Technical Physics Letters, April 2011, Pleiades Publishing Ltd

    Alexander Hramov

  227. Spike–wave discharges in WAG/Rij rats are preceded by delta and theta precursor activity in cortex and thalamus

    Article • Clinical Neurophysiology, April 2011, Elsevier

    Alexander Hramov, Dr Evgenia Sitnikova

  228. Ring intermittency near the boundary of the synchronous time scales of chaotic oscillators

    Article • Physical Review E, February 2011, American Physical Society (APS)

    Alexander Hramov

  229. Chaotic signal generation in low-voltage vircator with electron source shielded from external magnetic field

    Article • Technical Physics Letters, February 2011, Pleiades Publishing Ltd

    Alexander Hramov

  230. Method for diagnostics of characteristic patterns of observable time series and its real-time experimental implementation for neurophysiological signals

    Article • Technical Physics, January 2011, Pleiades Publishing Ltd

    Alexander Hramov

  231. An algorithm for real-time detection of spike-wave discharges in rodents

    Article • Journal of Neuroscience Methods, December 2010, Elsevier

    Alexander Hramov

  232. Numerical study of chaotic oscillations in the electron beam with virtual cathode in the external non-uniform magnetic fields

    Article • Physics Letters A, July 2010, Elsevier

    Alexander Hramov

  233. On the spectrum of spatial Lyapunov exponents for a nonlinear active medium described by a complex Ginzburg-Landau equation

    Article • Technical Physics Letters, July 2010, Pleiades Publishing Ltd

    Alexander Hramov

  234. Virtual cathode formation in helical electron flow under the action of intrinsic space-charge field

    Article • Technical Physics Letters, July 2010, Pleiades Publishing Ltd

    Alexander Hramov

  235. Formation and suppression of stationary and chaotic oscillations in a non-autonomous gyrotron backward-wave oscillator

    Article • Journal of Communications Technology and Electronics, June 2010, Pleiades Publishing Ltd

    Alexander Hramov

  236. Nonlinear dynamics of electron beam with virtual cathode in external inhomogeneous magnetic field

    Article • Technical Physics Letters, June 2010, Pleiades Publishing Ltd

    Alexander Hramov

  237. Hidden data transmission using generalized synchronization in the presence of noise

    Article • Technical Physics, April 2010, Pleiades Publishing Ltd

    Alexander Hramov

  238. Diagnostics of the generalized synchronization in microwave generators of chaos

    Article • Physics of Wave Phenomena, March 2010, Allerton Press

    Alexander Hramov

  239. Experimental study of the generalized synchronization of chaotic oscillations in the presence of noise

    Article • Technical Physics Letters, February 2010, Pleiades Publishing Ltd

    Alexander Hramov

  240. Chaotization of the virtual cathode oscillations in the external magnetic field created by a ring magnet

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2009, Allerton Press

    Alexander Hramov

  241. Nonautonomous noise-induced synchronization

    Article • Bulletin of the Russian Academy of Sciences Physics, December 2009, Allerton Press

    Alexander Hramov

  242. Formation and dynamics of a virtual cathode in a tubular electron beam placed in a magnetic field

    Article • Technical Physics, October 2009, Pleiades Publishing Ltd

    Alexander Hramov

  243. Influence of noise on the behavior of oscillators near the synchronization boundary

    Article • Technical Physics, October 2009, Pleiades Publishing Ltd

    Alexander Hramov

  244. Nonlinear nonstationary processes in a pair of coupled gyro-backward-wave oscillators

    Article • Technical Physics, June 2009, Pleiades Publishing Ltd

    Alexander Hramov

  245. High-Resolution 2 + 1 REMPI Study of the a′′1Σg+State in N2

    Article • The Journal of Physical Chemistry A, March 2009, American Chemical Society (ACS)

    Alexander Hramov

  246. Influence of background gas ionization on oscillations in a virtual cathode with a retarding potential

    Article • Physics of Plasmas, March 2009, American Institute of Physics

    Alexander Hramov

  247. First Experimental Observation of Generalized Synchronization Phenomena in Microwave Oscillators

    Article • Physical Review Letters, February 2009, American Physical Society (APS)

    Alexander Hramov

  248. The time of synchronization of oscillations in two coupled identical subsystems

    Article • Technical Physics Letters, March 2004, Pleiades Publishing Ltd

    Alexander Hramov

  249. Chaos control in an electron beam with supercritical current in a hydrodynamical model of the Pierce diode

    Article • Technical Physics Letters, December 2003, Pleiades Publishing Ltd

    Alexander Hramov

  250. Gyro-backward-wave oscillator synchronized by distributed external action

    Article • Technical Physics Letters, June 2003, Pleiades Publishing Ltd

    Alexander Hramov

  251. Self-oscillations in a gyro-backward-wave tube with coupled electrodynamic structures

    Article • Technical Physics, June 2003, Pleiades Publishing Ltd

    Alexander Hramov

  252. Signal amplification in a gyro-backward-wave tube

    Article • Technical Physics Letters, June 2003, Pleiades Publishing Ltd

    Alexander Hramov

  253. On the ultrafast synchronization of oscillations in a distributed active medium formed by a helical electron beam and a counterpropagating electromagnetic wave

    Article • Doklady Physics, April 2003, Pleiades Publishing Ltd

    Alexander Hramov

  254. On the possibility of increasing the automodulation threshold in a gyro-oscillator with backward-wave and coupled electrodynamic systems

    Article • Technical Physics Letters, February 2003, Pleiades Publishing Ltd

    Alexander Hramov

  255. Synchronized autooscillations in a distributed system of the “helical electron beam-opposite electromagnetic wave” type

    Article • Technical Physics Letters, September 2002, Pleiades Publishing Ltd

    Alexander Hramov

  256. Variation of the dependence of the transient process duration on the initial conditions in systems with discrete time

    Article • Technical Physics Letters, August 2002, Pleiades Publishing Ltd

    Alexander Hramov

  257. Wavelet bicoherence analysis as a method for investigating coherent structures in an electron beam with an overcritical current

    Article • Plasma Physics Reports, August 2002, Pleiades Publishing Ltd

    Alexander Hramov

  258. Universal scaling laws of transients

    Article • Doklady Physics, March 2002, Pleiades Publishing Ltd

    Alexander Hramov

  259. An effective wavelet analysis of the transition to chaos via intermittency

    Article • Technical Physics Letters, January 2001, Pleiades Publishing Ltd

    Alexander Hramov