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Article
Study of Heating and Evaporation of Rotating Graphene Nanofluid under the Influence of Solar Radiation
Conversion of solar radiation into steam is presently one of the trends in “green” energy (solar thermal energy), ecology, and clean water production. For the first time, a study of the heating and evaporation...
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Article
Scattering of Linear Waves on a Soliton
We have shown that the wave scattering by a soliton of nonlinear Schrödinger equation occurs in a peculiar way. The nonlinear interaction leads to the generation of waves with frequencies that are multiples of...
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Article
Comparative Analysis of the Efficient Energy Supply of Microrobots Based on Graphene Phase-Change Materials
We analyze efficient power supply systems for inspection microrobots designed to inspect and repair damage, and replace humans in performing difficult or dangerous tasks. Analysis based on modern methods of es...
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Article
Experimental Study of Evaporation of Nanofluid Droplets on Substrates under Solar Radiation
This work is devoted to the experimental study of evaporating droplets of titania-, silica-, and diamond-based nanofluids on a substrate under solar radiation. The influence of various factors, including the t...
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Article
An X-ray emitter for medical diagnostics
Results obtained during the development of the first Russian-made emitter for medical diagnostics, based on a domestic X‑ray tube with a rotating anode, are presented. The main technical characteristics of the...
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Article
Prospects for the Use of Two-Dimensional Nanomaterials in Energy Technologies (Review)
The prospects for the use of new, two-dimensional nanomaterials (2D materials) for the intensification of heat and mass transfer processes in power equipment are considered. The main types of 2D materials are ...
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Article
Experimental Investigation of a Relative Transmission Scheme on Chaotic Radio Pulses
Abstract—The practical feasibility of a wireless relative transmission scheme based on chaotic radio pulses is demonstrated. New components necessary for the implementation of this scheme have been developed. A p...
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Article
Direct Chaotic Ultra-Wideband Wireless Communications in the Very High Frequency and Ultra High Frequency Radio Bands
The problem of construction of ultra-wideband direct chaotic communication devices in the very high frequency and ultra high frequency ranges of radio waves is considered, the features of this range with respe...
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Article
Experimental Model оf a Multibeam Device for Observation in Radio Light
The possibility of creating an analog of the biological eye in the radio range for observing the surrounding space in artificial radio light is considered. As in the biological prototype, the analog has a syst...
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Article
Vlasov Equation for Phonons and its Macroscopic Consequences
Corrections to the harmonic approximation are obtained for the first order of the theory of hyperelasticity in the relaxation approximation for a cubic crystal. The Vlasov equation is constructed for a collisi...
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Article
Multiple Access in Relative Information Transmission Systems with Chaotic Radio Pulses
In this paper, we show the possibility of organizing multi-user access based on a relative transmission scheme using chaotic radio pulses as a data carrier. The maximal number of subscribers and information ca...
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Article
Personal Dosimetry of Microwave Electromagnetic Radiation. Long-Term Experiments with a “MERA” Device
In this paper, we present the measurement results of the dynamics of the level of electromagnetic microwave radiation obtained using “MERA” personal dosimeters developed at the Kotelnikov Institute of Radioeng...
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Chapter
Modeling Ensembles of Nonlinear Dynamic Systems in Ultrawideband Active Wireless Direct Chaotic Networks
Active wireless networks are considered in this paper as an instrument for modeling various ensembles of coupled nonlinear systems. Active wireless network is a generalized multi-element wireless processor pla...
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Article
Increasing Range of Ultrawideband Direct Chaotic Communications
A problem of an increase in the range of direct chaotic ultrawideband transceivers is considered. Parameters that determine the range are theoretically estimated. Experimental transceivers with a capacity of u...
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Article
Multiuser Access in Systems of Differentially Coherent Information Transmission Based on Chaotic Radio Pulses
The possibility of organizing multiuser access based on the differentially coherent information transmission scheme using chaotic radio pulses as data carriers has been demonstrated. Some theoretical estimates...
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Article
Conversion of Solar Radiation into Vapor: New Possibilities Offered by Nanomaterials (Review)
The current state in converting solar radiation into steam using nanotechnologies and nanomaterials is considered. The main attention is paid to the use of novel nanostructured materials, including graphene co...
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Article
Graphene nanofl akes and hybrid nanocomposites with gold and silver nanoparticles: optical and thermal properties
New technologies for the preparation of graphene nanofl akes (GNF) with noble metal nanoparticles (NPs), specifi cally Au and Ag, as well as hybrid nanocomposites composed of metal microspheres coated with nan...
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Article
Artificial Radio Illumination in a Closed Space
The problem of illumination of objects and surfaces by artificial incoherent sources of microwave radiation (radio light lamps based on dynamic chaos generators) in order to observe them using special receivin...
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Article
Measuring the Distance between an Emitter and a Receiver in the Wireless Communication Channel by Ultrawideband Chaotic Radio Pulses
The possibility of wireless distance measurement using ultrawideband chaotic radio pulses on the basis of the statistical signal analysis is discussed. The results of experimental verification of the proposed ...
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Article
An Experimental Cell for a Radio Light Receiver
The problem of creating a receiver for incoherent microwave radiation from sources realized on the basis of ultra-wideband oscillators of chaotic oscillations and objects and surfaces “illuminated” by these so...
