Concern Granit-Electron (Russia)

For modern medicine and veterinary science, it is important to create new methods to heal purulent wounds and burns with high bactericidal activity. The experiment involved 28 rabbits at the age of two-three months divided into two groups. In the experimental group (n=14), wounds were treated with local electromagnetic radiation using the device “TOP” three times a day every day. In the control group (n=14), purulent and burn wounds were treated with 0.9 % saline solution two times a day every day. After wound modeling, the size of animals was measured daily using the planimetric method. The bacteriologic culture technique was also applied every day. The duration of the experiment was 14 days. Statistical processing of the data was carried out by the SPSS 17.0 program. From day 5, the experimental group demonstrated the wound healing rate statistically significantly higher (p<0.05). Different staphylococcus cultures were absent in the bacteriologic cultures of the experimental group on day 14, whereas in the control group they were found in 12 (85.7 %) animals. Along with the increasing rate of proteus destruction on the wound surface, burn wounds healed faster in the experimental group (p<0.05). In the test group of animals, Pseudomonas aegyposa was eliminated at day10 in 10 (71.4 %) animals. At the same time, we identified a positive correlation between the rate of wound healing and the degree of destruction of this microorganism. Against the normal reactivity of the macroorganism, the mechanism of the wound-healing effect of electromagnetic radiation consists in the creation of sterile conditions on the surface of purulent wounds and burns.

Relevance. In the harsh climate of the Arctic, where the warm season with a maximum average daily temperature above 10 °C lasts only three months, scientists in the crop industry are conducting tests and creating unique varieties of crops that will be able to provide the northern regions with fresh and vitamin-rich vegetable products.Materials and Methods. In the Nenets Autonomous Okrug, at the Naryan-Mar Experimental Agricultural Station, an innovative technology for priming seeds of vegetable legumes with electromagnetic exposure developed by JSC «Concern GRANIT» with the «TOR» device was tested on domestic varieties of Pisum sativum L. и Vicia Faba L. selected by the Federal Scientific Vegetable Center (FSBSI FSVС).Results. The tested varieties of vegetable legumes beyond the Arctic Circle were able to fully realize their productive potential, and the results of observations of the growth and development of crops confirmed the presence of favorable conditions for the selected crops. The quality of vegetable products and the obtained seeds of vegetable legumes in the Arctic in 2024 turned out to be higher than in the Moscow region due to a lower phytopathogenic load. Electromagnetic priming with the «TOR» device made it possible to obtain, in the conditions of the Far North, the productivity of green peas in responsive varieties and seed productivity in beans – by 3-16% and 12-35%, respectively, more than in control. Thanks to the use of the «TOR» device, acceleration of ripening, an increase in yield and product quality are noted, which is especially important in the conditions of a short growing season. Thus, favorable conditions and competitive opportunities for agriculture in the geographical location of the Russian North provide good opportunities to produce organic products in ecologically clean areas, which will be competitive not only in the regional, but also in the national and international food markets.

Field research was conducted in 2021–2023 in the conditions of the Komi Republic. Tubers of 9 potato cultivars were subjected to pre-treatment with weak non-ionizing pulsed alternating electromagnetic fields (EMF). The electromagnetic effect was carried out by the TOR-bio device in the 15/5 mode (15 minutes of exposure, 5 minutes of break, three times a day before planting) with a pulse frequency of 125 Hz. The effectiveness of both a single treatment in 2023 and the consequences of annual EMF treatments of tubers of the 2022 harvest and their offspring of 2021 and 2022 were evaluated. It was found that the effectiveness of the action of an alternating electromagnetic field depended on the cultivar. In EMF-sensitive potato cultivars, an earlier appearance of mass seedlings (‘Pechorsky’, ‘Lux’, ‘Terra’) and an increase in yield by 26–75 % (‘Legenda’, ‘Lux’, ‘Mishka’, ‘Argo’) were observed. The increase in the yield of ‘Mishka’ and ‘Lux’ cultivars can be explained by a fairly significant (p≤ 0.05) increase in the number of tubers formed on the bush after EMF treatment. In the harvest of the ‘Pechorsky’ cultivar obtained in 2023 from EMF-treated tubers, an increased content of dry matter was noted in the autumn-spring storage period and starch in the autumn period. The analysis of the consequences of repeated EMF treatment of tubers revealed a positive effect on the intensity of plant development and the quality of the harvest of the ‘Pechorsky’ cultivar of local breeding, which may indicate the occurrence of stable changes in its genotype.

Photoluminescence from the surface of a Nafion polymer membrane upon swelling in isotonic aqueous solutions and Milli-Q water has been studied. Liquid samples were preliminarily processed by electric pulses with a duration of 1 μs and an amplitude of 0.1 V using an antenna in the form of a flat capacitor; experiments on photoluminescent spectroscopy were carried out 20 min after this treatment. A typical dependence of the luminescence intensity, I, on the swelling time, t, obeys an exponentially decaying function. The characteristic decay time of these functions and the stationary level of luminescence intensity depend on the repetition rate of electrical pulses, and the obtained dependences are well reproduced. It transpired that, at certain pulse repetition rates, the dependence, I(t), is a random function, and there is no reproducibility. Stochastic effects are associated with a random external force of an electromagnetic nature that acts on a polymer membrane during swelling. The source of this random force, in our opinion, is low-frequency pulsations of neutron stars or white dwarfs.

In this paper substantiates the need to develop a new design of the receiving device to increase the speed of information transfer between motile objects. This is especially true for cases of large distances in poor climatic conditions. In such a situation, the power of the transmitted signal decreases with increasing distance to the receiver. In this case, due to the small signal-to-noise ratio, information may be lost, in addition, it takes longer to process. This reduces the speed of information transfer. In the work, a new method is developed for constructing a receiver for m-ary radio communication system, which allows for the exchange of information between motile objects. Various methods for processing phase-shifted complex signals in various reception options (with a high level of interference, medium and low) are considered. It has been established that the most appropriate is the use of non-optimal incoherent processing of m-ary phase-shifted complex signals in matched filters and correlators. In addition, the work presents the results of studies of various operating modes of the developed receiving device. The directions of further research and development to improve the development characteristics are identified.

Currently, m-ary radio communication systems are gaining popularity for transferring information between motile objects. This paper describes a possible way to increase the noise immunity of such systems. This is especially true for cases of long distances in poor climatic conditions. In such a situation, the power of the transmitted signal decreases with increasing distance to the receiver. When using the proposed method of increasing noise immunity in the construction of m-ary communication systems, it is possible to reduce the loss of data during transmission over the radio channel.

Introduction: The parameters chosen for complex coded signals used in active radar systems of aircraft for detecting objects largelydetermines their qualitative characteristics and the possibility of covert operation. An important task in the design of such on-boardsystems is the formation of ensembles of pseudorandom-noise binary code sequences of a fixed length with predefined characteristics.Purpose: Search for PRN binary code sequences of a given length, optimal by the criterion of the minimum level of the sidelobes of theaperiodic autocorrelation function. Results: A procedure of search for binary code sequences with specified parameters based on theevolutionary approach is proposed. The minimum level of positive sidelobes of the autocorrelation function is used as a criterion forthe selection of code sequences. An additional restriction is imposed on the length of a substring of codes of the same character. Thepossibility of forming a representative array of sequences with the best ratio of the main peak of the aperiodic autocorrelation functionto its maximum positive sidelobe is shown on the example of 31-bit code sequences. An algorithm is proposed for generating a PRNseries of signals using the code sequences found. The Hamming distance is used as a measure of the difference between two binary codesequences in the series. The proposed approach is advantageous as compared to the well-known method of generating PRN signals basedon pseudorandom m-sequences. Practical relevance: The results obtained can be used in algorithms of airborne radar systems with ahigh range resolution to detect physical objects on the background of an underlying surface, for example, objects on the water surface.

Different approaches to perform the electronic device heating during radiation hardness assurance tests are discussed. A new heating approach based on the use of ceramic infrared heaters is presented along with experimental results.

In the article a new design of a fiber-optic communication line for microwave transmission between devices in a radar station is considered. New designing solutions for the developed fiber-optic communication line are proposed. The results of experimental research are represented.

One of the key factors of ensuring the required level of the AD WME technical readiness for the intended use is minimisation of the time period necessary for restoration of the AD WME systems after their failures. Over the years, JSC Principle Production and Technical Company Granit has per-formed a cycle of R&D activities aimed at creating effective means of the AD WME maintenance and organisational repair at their deployment sites as well as at developing innovative maintenance and organisational repair technologies. Following the results of these activities, a set of adaptable unified mobile repair and diagnostic equipment (RDE)was created and then exported in order to ensure the maintenance and organisational repair of the AD WME pieces delivered within military technical cooperation with foreign countries. Further development of this focus area resulted in creation of a set of unified mobile organisational repair systems. This article considers main functional and technical as well as technological opportunities of the unified mobile organisational repair systems. Their prototypes are previously developed RDE for export.