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  Subjects -> ELECTRONICS (Total: 153 journals)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 1)
Advances in Electronics     Open Access   (Followers: 1)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 5)
Advances in Microelectronic Engineering     Open Access   (Followers: 2)
Advances in Power Electronics     Open Access   (Followers: 7)
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (Followers: 71)
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 11)
Annals of Telecommunications     Hybrid Journal   (Followers: 4)
APL : Organic Electronics and Photonics     Hybrid Journal   (Followers: 2)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 6)
Archives of Electrical Engineering     Open Access   (Followers: 9)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 9)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 16)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 14)
Biomedical Instrumentation & Technology     Full-text available via subscription   (Followers: 5)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 6)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 2)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access  
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 13)
China Communications     Full-text available via subscription   (Followers: 4)
Circuits and Systems     Open Access   (Followers: 9)
Consumer Electronics Times     Open Access   (Followers: 4)
Control Systems     Hybrid Journal   (Followers: 24)
Electronic Design     Partially Free  
Electronic Markets     Hybrid Journal   (Followers: 5)
Electronic Materials Letters     Hybrid Journal   (Followers: 3)
Electronics     Open Access   (Followers: 8)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 5)
Electronics Letters     Hybrid Journal   (Followers: 19)
Embedded Systems Letters, IEEE     Hybrid Journal   (Followers: 22)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 1)
EPJ Quantum Technology     Open Access  
EURASIP Journal on Embedded Systems     Open Access   (Followers: 8)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and TrendsĀ® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and TrendsĀ® in Signal Processing     Full-text available via subscription   (Followers: 4)
Frequenz     Full-text available via subscription   (Followers: 2)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 2)
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (Followers: 21)
Haptics, IEEE Transactions on     Hybrid Journal   (Followers: 4)
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 15)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 14)
IEEE Consumer Electronics Magazine     Full-text available via subscription   (Followers: 17)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 12)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 2)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 6)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 10)
IEEE Transactions on Audio, Speech, and Language Processing     Hybrid Journal   (Followers: 12)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 26)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 17)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 8)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 14)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 21)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 8)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 7)
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 7)
IET Power Electronics     Hybrid Journal   (Followers: 13)
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 10)
IETE Journal of Education     Open Access   (Followers: 2)
IETE Journal of Research     Open Access   (Followers: 9)
IETE Technical Review     Open Access   (Followers: 4)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (Followers: 13)
Industry Applications, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Informatik-Spektrum     Hybrid Journal  
Instabilities in Silicon Devices     Full-text available via subscription  
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 2)
International Journal of Advanced Electronics and Communication Systems     Open Access   (Followers: 5)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 20)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 3)
International Journal of Aerospace Innovations     Full-text available via subscription   (Followers: 11)
International Journal of Antennas and Propagation     Open Access   (Followers: 8)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 1)
International Journal of Biomedical Nanoscience and Nanotechnology     Hybrid Journal   (Followers: 7)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 4)
International Journal of Computer & Electronics Research     Full-text available via subscription   (Followers: 2)
International Journal of Control     Hybrid Journal   (Followers: 13)
International Journal of Electronics     Hybrid Journal   (Followers: 2)
International Journal of Electronics & Data Communication     Open Access   (Followers: 4)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 3)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 1)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 1)
International Journal of Nano Devices, Sensors and Systems     Open Access   (Followers: 6)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling:Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 2)
International Journal of Power Electronics     Hybrid Journal   (Followers: 8)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 2)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 2)
International Journal of Superconductivity     Open Access  
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 2)
International Journal on Communication     Full-text available via subscription   (Followers: 8)
International Journal on Electrical and Power Engineering     Full-text available via subscription   (Followers: 11)
International Transaction of Electrical and Computer Engineers System     Open Access  
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 2)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 5)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 1)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription  
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 2)

        1 2 | Last

Journal Cover   Radiophysics and Quantum Electronics
  [SJR: 0.236]   [H-I: 9]   [4 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1573-9120 - ISSN (Online) 0033-8443
   Published by Springer-Verlag Homepage  [2302 journals]
  • Experimental Study of High-Current Cathodes Based on Diamond Films as
           Elements of High-Power Compressors of Microwave Pulses
    • Abstract: We present the results of studying the emissive properties of molybdenum cathodes with deposed diamond films at strong currents, as well as the dependences of these properties on the deposition regimes and the structure of diamond films. The emissive properties of the films are determined by analyzing the output parameters of a high-power compressor of microwave pulses, which is based on diamond-coated cathodes. It is shown that the use of such cathodes allows one to increase the emission current and the amplification factor of the microwave compressor.
      PubDate: 2015-03-01
       
  • VLBI Radar of the 2012 DA14 Asteroid
    • Abstract: An experiment on VLBI radar of the 2012 DA14 asteroid was carried out on February 15–16, 2011 at the time of its closest approach to the Earth. The research teams of Kharkov (Institute of Radio Astronomy of the National Academy of Sciences of Ukraine), Evpatoria (National Space Facilities Control and Test Center), Nizhny Novgorod (Radiophysical Research Institute), Bologna (Istituto di Radioastronomia (INAF)), and Ventspils (Ventspils International Radioastronomy Center) took part in the experiment. The asteroid was irradiated by the RT-70 planetary radar (Evpatoria) at a frequency of 5 GHz. The reflected signal was received using two 32-m radio telescopes in Medicina (Italy) and Irbene (Latvia) in radiointerferometric mode. The Doppler frequency shifts in bi-static radar mode and interference frequency in VLBI mode were measured. Accuracy of the VLBI radar method for determining the radial and angular velocities of the asteroid were estimated.
      PubDate: 2015-03-01
       
  • Two-Soliton Interaction Within the Framework of the Modified
           Korteweg–de Vries Equation
    • Abstract: We study interaction of two solitons of different polarities within the framework of the modified Korteweg–de Vries equation. Three types of soliton interaction are considered, namely, exchange and overtaking interactions (for positive solitons) and an absorb-emit interaction (for solitons of different polarities). The soliton-interaction features are studied in detail. Since the soliton interaction is an elementary soliton-turbulence act, the wave-field moments from the first to the fourth inclusively, which are usually considered in the theory of turbulence, are studied. It is shown that during interaction of solitons of the same polarity, the third and fourth wave-field moments, which determine the skewness and kurtosis coefficients in the theory of turbulence, decrease, whereas for solitons of different polarities, these moments increase. The obtained results are compared with the estimates of two-soliton interaction within the framework of the Korteweg–de Vries equation.
      PubDate: 2015-03-01
       
  • Weak Localization in Media with Refractive-Index Gradient: the Diffusion
           Approximation
    • Abstract: We consider the effect of weak localization of waves in the scattering medium with regular refractive-index gradient. The solution within the diffusion approximation of the radiative transfer theory is obtained. Reasonable qualitative agreement of the approximate solution with the results of numerical simulation is shown.
      PubDate: 2015-03-01
       
  • Propagation and Generation of Electromagnetic Waves at Proton
           Gyrofrequencies in a Relativistic Electron–Positron Plasma. I.
           Low-Frequency Weakly Damped Electromagnetic Waves
    • Abstract: We consider the dispersion characteristics of electromagnetic waves in a plasma with strong magnetic field and equal content of relativistic electrons and positrons, whose synchrotron radiation can be the source of optical radiation of a pulsar. It is shown that when a small fraction of nonrelativistic protons with a nonequilibrium distribution function is present in the plasma, an effective instability can develop at frequencies below the first harmonic of the relativistic gyrofrequency of electrons, namely, at the harmonics of the proton gyrofrequency. This instability leads to the excitation of the O- and X-mode electromagnetic waves, which can, in principle, be related with the observed pulsar radiation. In part I of this paper, we study dispersion characteristics of low-frequency electromagnetic waves (with frequencies below the relativistic gyrofrequency of electrons) in an ultrarelativistic electron–positron plasma with an isotropic momentum distribution function of the particles. Instabilities of the O- and X-mode waves and the conditions of escape of the radiation from the region of strong magnetic field into a rarefied isotropic plasma will be considered in paper II. The results can be used in the interpretation of known experimental data on the dynamic pulsar radiation spectra obtained with high temporal and frequency resolution.
      PubDate: 2015-03-01
       
  • On Protection of the Modulation Radiometer Against Pulse Interference by
           Controlling the Frequency of the Reference Oscillation
    • Abstract: We have developed methods for adaptation of the modulation radiometer under the conditions of a priori uncertainty of the temporal distribution of pulsed interference. Two ways of forming the reference voltage are proposed: one according to the measured time parameters of the pulse interference and anther according to the current parameters of the pulse interference.
      PubDate: 2015-03-01
       
  • Signal Processing in Synthestic-Aperture Radars During the Formation of
           the Earth-Surface Velocity Fields
    • Abstract: We consider the signal-processing principles during the Earth-surface sounding by syntheticaperture radars (SARs) including the along-track interference radars. The aperture-synthesis features for solving two problems, namely the measurements of the local-reflector velocity and reconstruction of the velocity pattern of the rough surface, are discussed. The features of these problems and restrictions related to the aperture-synthesis process and other factors including the limited radiated power of a space radar are considered. Conclusions on the possibilities of the radar reconstruction of the surface velocity fields for both the local reflectors and the extended surface (sea currents) are drawn. Approximate calculations of the available parameters of the recorded fields in the SARs mounted onboard low-orbit spacecraft are performed.
      PubDate: 2015-03-01
       
  • Synchronization in the System of Synaptically Coupled Neural Oscillators
           with Frequency-Dependent Coupling
    • Abstract: We study the influence of the frequency-dependent coupling on synchronization in a model system of the synaptically coupled neural oscillators is studied. The ranges of parameters for which the locking of the frequency of the driven (output) neural oscillator is observed are obtained. The phase characteristics of oscillations in the synchronization regime are studied. The phase mappings are numerically plotted to describe the above-mentioned characteristics and analytical estimates for these mappings are obtained for certain restrictions imposed on the frequency characteristics of the oscillators. The effect of the frequency-dependent variation in the coupling is shown to lead to a substantial change (narrowing) of the synchronization regions compared with the case of fixed synaptic coupling.
      PubDate: 2015-03-01
       
  • Optimization of the Optical Microelements Using High-Performance Computer
           Systems
    • Abstract: We present a numerical analysis of the laser beam diffraction by a two-zone binary microlens for different focal lengths. Characteristics and features of diffraction of the Gaussian beam and the (0,1) Gauss–Laguerre mode with linear and circular polarizations by the considered element are studied.
      PubDate: 2015-02-25
       
  • Application of the Phase Light Modulator in the Image Optical Encryption
           Scheme with Spatially Incoherent Illumination
    • Abstract: We describe application of the phase liquid-crystal spatial light modulator HoloEyePLUTOVIS as an encoding element in the image optical encryption scheme with spatially incoherent illumination. Optical encryption and numerical decryption of test images were conducted. The results of experiments demonstrate the efficiency of the constructed optical encryption scheme.
      PubDate: 2015-02-25
       
  • Four-Wave Interaction on Resonance and Thermal Nonlinearities in a Scheme
           with Concurrent Pump Waves for High Conversion Coefficients
    • Abstract: We have obtained the dependences of the conversion coefficient and the bandwidth of spatial frequencies on the intensity of pump waves for a four-wave converter of radiation for the resonance and thermal nonlinearity in a scheme with concurrent pump waves. The connection between the conversion coefficient and spatial selectivity of a four-wave radiation converter has been found.
      PubDate: 2015-02-25
       
  • Formation Dynamics of Transmission Holograms in Lithium Niobate Crystals
           Doped by Copper Through High-Temperature Diffusion
    • Abstract: The results of experimental realization of the technology of diffusion doping of X-cut congruent lithium niobate crystals by copper and the results of studying their photorefractive and photovoltaic properties are presented. The latter was done by using the Bragg diffraction of the reading beam with a wavelength of 655 nm on the dynamic transmission volume–phase holograms recorded by laser beams having a wavelength of 532 nm. It is shown that by their photogalvanic properties the created samples, which are 1.8 mm thick, are similar to the single crystals grown by the conventional method from melt containing copper monooxide as a supplement.
      PubDate: 2015-02-25
       
  • Focused Laser-Beam Scanning by the Apertured Probe of a Near-Field
           Microscope
    • Abstract: The focused-light scanning using the two-dimensional aperture probe is numerically simulated by the finite element method. The difficulties related to simulating the probe of the near-field scanning optical microscopy are considered. The patterns of the spatial distribution of the flux density in the focal spot, which are scanned by the probe, are obtained. The probe response corresponds to the transverse component of the electric field and the gradient of the longitudinal component of electric field in the cases of sharp focusing of the Gaussian beam and the Gaussian–Hermitean beam focusing, respectively.
      PubDate: 2015-02-25
       
  • Parallel Monitoring of Living Cell Cultures by Means of Digital-Holography
           and Fluorescent Microscopy
    • Abstract: We propose using the method of holographic microscopy to detect fine morphologic changes in living cells. An “LSM 510” laser confocal scanning microscope is modified to allow recording digital microholograms which can be used to reconstruct the amplitude and phase of the radiation transmitting through the sample. Measuring the phase increment of the object beam in cells and the intercellular space yields information on the optical length of the ray path in the cells (spatial dimensions and the refractive index), which in turn contains information on changes in the morphology and intracellular contents. Calcium activity is studied by means of fluorescent microscopy which makes it possible to detect minor variations in the intracellular concentration of calcium ions. By studying the dynamics of calcium oscillations and variations in the optical thickness, conclusions are made about the interrelation of functional and morphological variations, and comparative analysis of these variations is performed.
      PubDate: 2015-02-24
       
  • Achievement of Superresolution in Optical-Thickness Measurement and
           Statistical Localization of Fluorophores in Holographic and Fluorescent
           Microscopy
    • Abstract: We present the concept of combining the holographic and localization fluorescent microscopy. The ways to optimize the optical schemes and image recording regimes in the process of combining such interferometric and statistical methods are developed, which makes it possible to study the dynamics of the internal cell structure with transverse and longitudinal superresolution.
      PubDate: 2015-02-24
       
  • Methods of Processing and Retrieval of Information from Digital Particle
           Holograms and Their Application
    • Abstract: We consider a holographic study of particles. The main attention is focused on retrieval of information from a digital hologram, namely, determination of the characteristics of a particle and its holographic image. To estimate the efficiency of this stage, we used quantitative criteria of the holographic image quality. These criteria were also used for determining the position of a particle in space, which ensures a significantly higher accuracy (an error of about 0.2 mm) compared with other methods. An algorithm for increasing the quality of the holographic image of a particle is developed. A method for two-dimensional holographic mapping of the volume of the medium with particles for automatic retrieval of information from the digital particle hologram is discussed.
      PubDate: 2015-02-24
       
  • Dynamics of Light-Absorption Variations Induced in a Bismuth Silicate
           Crystal by Visible Laser Illumination
    • Abstract: We present the results of experimental studies of the dynamics of the photoinduced optical absorption in a bismuth silicate crystal subject to continuous laser irradiation with wavelengths of 532 and 655 nm. The semiconductor-laser light beam with the wavelength λ = 655 nm causes the crystal bleaching at this wavelength, whereas its exposure to a shorter-wavelength irradiation from the optical-spectrum green region with a wavelength of 532 nm increases the optical absorption at both wavelengths, of 532 and 655 nm. The experimental results are interpreted using the theoretical model which assumes that the crystal has deep defect centers of two types so that an electron at each of these centers can be in one of the states characterized by different photoionization cross sections.
      PubDate: 2015-02-24
       
  • Digital Holographic Interferometry of a Wide Spectral Range in the Systems
           of Nondestructive Testing of Dynamics of Micro- and Macrosystems
    • Abstract: Modern digital holographic interferometry is used to study the objects of various nature and various spatial scales. In this case, a wide spectral range of coherent electromagnetic radiation from long-wavelength infrared to deep ultraviolet is used. In this work, we present the results of studying dynamic processes in construction materials by the methods of digital holographic interferometry using radiation with a wavelength of up to 9.3 μm. The holographic method for testing of microelectromechanical structures is also considered. The method of digital holographic interferometry, which uses an automated holographic microscope, is proposed to study microscopic biological objects.
      PubDate: 2015-02-24
       
  • Dynamic Speckle-Interferometry of Microscopic Processes in Thin Biological
           Objects
    • Abstract: Speckle dynamics in a thin biological object illuminated through a diffusor box is studied both theoretically and experimentally. A model that allows for random time variations in the phase difference Δφ of pairs of waves transmitted through the object is used in the theoretical part of this study. Formulas for the time-averaged intensity of the radiation at a certain point of observation and a temporal autocorrelation function of the radiation intensity are deduced. The relationship between the characteristics of the random variable Δφ and the parameters of the speckle dynamics is discussed. The case of occurrence of a quasiperiodic variation in the radiation intensity is separately considered. The theoretical results are used for interpretation of the data obtained in the experiments on studying the metabolic activity of cells cultivated on a glass substrate.
      PubDate: 2015-02-24
       
  • Diffractive Elements in the Optical System: Successes, Challenges, and
           Solutions
    • Abstract: Correction of aberrations is regarded as one of the most successful applications of diffractive optical elements in the optical system. The ways of overcoming these negative properties of the diffractive elements as spherochromatism and power spectral selectivity are presented. Using the technique given in this paper, a compact plastic–lens refractive–diffractive objective, which can operate in a wide spectral range including the visible and near-infrared radiation, has been designed.
      PubDate: 2015-02-24
       
 
 
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