372 results on '"V. A. Gorshkov"'
Search Results
2. New Russian antiarrhythmic agent nibentan: clinical effectiveness and pharmacokinetics in supraventricular arrhythmia management
- Author
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A. E. Radzevich, V. G. Valiev, V. A. Gorshkov, E. M. Zeltyn, A. B. Bezprozvanny, E. N. Ostroumov, and S. A. Appolonova
- Subjects
cardiac rhythm ,supraventricular arrhythmias ,nibentan ,effectiveness ,pharmacokinetics ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Clinical effectiveness of a new Russian antiarrhythmic agent nibentan, Class III, was studied in various supraventricular arrhythmias. In total, 220 patients with atrial fibrillation (AF), atrial flutter (AFl), supraventricular tachycardia (SVT) and frequent supraventricular extrasystoles (SVE) were examined. ECG monitoring and echocardiography data, electrolyte balance and blood biochemistry were assessed. left ventricular myocardial kinetics and perfusion were studied by computed Tc-99 scintigraphy (Siemens-E. CAM camera, two detectors, 90 degree rotation, 16 gates per cardiac cycle; data analysis with 4DM sped program). Nibentan pharmacokinetics and pharmacodynamics, as well as its metabolite levels, were measured with highly effective chromatography-mass spectrometry. Nibentan was highly effective in various supraventricular arrhythmias, without affecting central hemodynamics or left ventricular perfusion. There was a positive correlation between nibentan administration time, its active metabolite detection, plasma Mg level increase, and QTinterval elongation. Conclusion: Nibentan, a new antiarrhythmic agent, is highly effective for supraventricular paroxysmal arrhythmias (AF, AFl, SVT) management. Due to long QT and ventricular tachycardia risk, nibentan should be administered at cardiac resuscitation departments or intensive care units only.
- Published
- 2007
3. Clinical study of Russian class III antiarrhythmic agent, nibentan, in supraventricular arrhythmia management
- Author
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V. G. Valiev, A. E. Radzevich, V. A. Gorshkov, E. M. Zeltyn, A. B. Besprozvanny, and E. N. Ostroumov
- Subjects
atrial fibrillation ,atrial flutter ,class iii antiarrhythmic agent ,nibentan ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Aim. To study clinical efficacy of a new, class III, antiarrhythmic agent, nibentan, in various supraventricular (SV) cardiac arrythmias. Material and methods. In total, 153 patients with atrial fibrillation, atrial flutter, or SV tachycardia were examined. Electrocardiography monitoring, echocardiography, electrolyte balance assessment, biochemical blood assay were performed. Left ventricular (LV) kinetics and perfusion was measured by myocardial computer scintigraphy method. The results were processed with 4DM spect program. Results. Nibentan demonstrated high antiarrhythmic activity in various SV cardiac arrhythmias No significant effects on central hemodynamics and LV myocardial perfusion were observed. Conclusion. In this trial, a new medication, nibentan, demonstrated the qualities of a true class III antiarrhythmic agent.
- Published
- 2005
4. SHS of cast materials in the Mo-Al-C system
- Author
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V. A. Gorshkov, P. A. Miloserdov, D. Yu. Kovalev, and O. D. Boyarchenko
- Subjects
Materials Science (miscellaneous) ,Metals and Alloys ,Ceramics and Composites ,Surfaces, Coatings and Films - Abstract
Materials based on molybdenum-aluminium-carbon compounds have a considerable potential for use under intense wear conditions at elevated temperatures. This paper presents the experimental results of self-propagating high-temperature synthesis of compounds within the Mo-Al-C system. By combining two processes: SHS of the elements and SHS-metallurgy, cast materials containing the Mo3Al2C, Mo2C, Mo3Al, and Mo3Al8 phases were obtained. The experiments used mixtures with compositions calculated according to the ratio (1 - α)(3MoO3-8Al-C)/α(3Mo-2Al-C), where a varied in the range from 0 to 1. The synthesis was carried out in a laboratory reactor of 3 L volume at an initial argon pressure of 5 MPa. The mass of the initial mixtures in all experiments was 20 g. The process of combustion was initiated by a 0.5 mm diameter molybdenum wire spiral by applying 28 V voltage to it. The resulting end products were studied by X-ray diffraction and local microstructural analysis. A significant influence of the ratio of the initial reagents on the synthesis parameters, phase composition, and microstructure of the target products was established. Introduction into the high-exothermic mixture 3MoO3-8Al-C inert “cold” mixture 3Mo-2Al-C leads to an increase in the content of carbide phases in the ingots. The possibility of obtaining cast materials based on the triple phase Mo3Al2C, the maximum content of which is 87 wt. % at the content of the “cold” mixture in the charge α = 0.4 is shown. The presence of secondary phases of molybdenum carbide (Mo2C) and molybdenum aluminides (Mo3Al8 , Mo3Al) in the final products is due to a change in the composition of the initial mixture caused by the ejection of components during combustion and insufficient existence time of the melt formed in the combustion wave.
- Published
- 2023
5. Fungicide resistance of Microdochium nivale strains and its interconnection with virulence
- Author
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G. Sh. Murzagulova, A. R. Meshcherov, O. A. Gogoleva, S. N. Ponomarev, M. L. Ponomareva, and V. Yu. Gorshkov
- Subjects
General Materials Science - Abstract
The aim of the study was to analyze the resistance of 21 Microdochium nivale strains (fungi that cause pink snow mold in winter crops), living within a single area and a single crop (winter rye), to fungicides that differ in chemical nature and mechanisms of action as well as to test the interconnection between levels of virulence and fungicide resistance of strains. The virulence of M. nivale strains was determined on detached leaves of rye (Ogonek variety) plants as well as on whole plants grown under sterile conditions in vitro. The resistance of strains to fungicides (Provisor (a.s. azoxystrobin) and Ferazim (a.s. carbendazim)) was determined by inhibition of mycelium growth. As a result of the experiments, more strains (13) capable of growing in the presence of Provisor were revealed than Ferazim-resistant strains (2); however, Ferazim-resistant strains had a greater level of resistance (5-16% of growth inhibition) than Provisor-resistant strains (63-94 % of growth inhibition). A negative correlation (Spearman's correlation coefficient -0.604 and -0.532) between the level of virulence of M. nivale strains and the level of their susceptibility to Provisor was found. This evidently means that the acquisition of resistance to Provisor by M. nivale strains is accompanied by an increase in their virulence. No correlations were found between the fungicide resistance of M. nivale strains and their attribution to one or another phylogenetic group, to which the strains were assigned based on the nucleotide sequence of the ITS2 (internal transcribed spacer 2) region. The study shows that for choosing the fungicide application strategy, it is necessary to analyze phytopathogen populations for the presence of strains that are simultaneously characterized by high virulence and resistance to various fungicides and also take into account that the adaptation of fungi to certain fungicides can be accompanied by an increase in their virulence, which will negatively affect the phytopathological state of agrocenosis.
- Published
- 2022
6. High-Temperature Synthesis of Mo3Al2C-Based Materials via Combustion of MoO3 + Al + C + Al2O3 Powder Mixtures
- Author
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D. Yu. Kovalev, V. A. Gorshkov, and O. D. Boyarchenko
- Subjects
Inorganic Chemistry ,General Chemical Engineering ,Materials Chemistry ,Metals and Alloys - Published
- 2022
7. REFERENCE MATERIALS IN THE SPHERE OF USE OF ATOMIC ENERGY
- Author
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V. A. Borisov, M. L. Karpyuk, L. A. Karpyuk, V. B. Gorshkov, E. I. Zhomova, and V. V. Lesin
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стандартные образцы ,атомная энергетика ,учет и контроль ядерных материалов ,reference materials ,nuclear power ,state system of accounting and control of nuclear materials ,Technology - Abstract
The article describes the chronology of development of the system of reference materials in the nuclear industry of the Russian Federation. The basic documents used in the sphere of nuclear energy are described. The nomenclature of reference materials and feature of their application in the "Rosatom" is given. The prospects of development activities in the field of reference materials are formulated.
- Published
- 2017
8. High-Temperature Synthesis of Cr–Mo–Al–C Materials
- Author
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V. A. Gorshkov, D. Yu. Kovalev, O. D. Boyarchenko, and A. E. Sychev
- Subjects
Inorganic Chemistry ,General Chemical Engineering ,Materials Chemistry ,Metals and Alloys - Published
- 2021
9. Effect of a Gas Medium on the Mechanical, Tribological, and Anticorrosion Properties of Cr–Ni–Al–C–N Coatings Deposited by the Pulsed Cathodic Arc Evaporation Method
- Author
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Ph. V. Kiryukhantsev-Korneev, A. D. Sytchenko, A. N. Sheveyko, V. A. Gorshkov, and E. A. Levashov
- Subjects
Materials Chemistry ,Condensed Matter Physics - Published
- 2021
10. The Synthesis of Cast Materials Based on the MAX Phases in a Cr–Ti–Al–C System
- Author
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V. A. Gorshkov, N. Yu. Khomenko, and D. Yu. Kovalev
- Subjects
Mechanics of Materials ,Metals and Alloys ,Surfaces, Coatings and Films - Published
- 2021
11. The key effects of the revised provisions of the set of rules 'Fire protection systems. Fire resistance of protected items' with regard for the new requirements introduced into building regulation codes
- Author
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V. V. Pavlov, A. V. Gomozov, V. S. Gorshkov, and O. V. Fomina
- Subjects
Set (abstract data type) ,Architectural engineering ,Work (electrical) ,Computer science ,Fire protection ,Key (cryptography) ,Harmonization ,Fire resistance ,Research findings ,Federal law - Abstract
Introduction . New provisions, introduced into building regulation codes, necessitate a revision of the set of rules titled “Fire protection systems. Fire resistance of protected items” in respect of fire resistance limits and fire hazard classes of building structures, dimensions of fire compartments, as well as their detailed elaboration with account taken of the characteristics of buildings that perform different functions. Goals and objectives . The purpose of the article is to substantiate the revised provisions of the set of rules “Fire protection systems. Fire resistance of protected items” with account taken of the new provisions of building regulation codes. Methods . An analytical method is used to formulate and substantiate the requirements for a fire protection system based on the comprehensive evaluation of provisions of the Federal Law of the Russian Federation dated July 22, 2008 No. 123-FZ “Technical Regulations of Fire Safety Requirements” (hereinafter — No. 123-FZ) and provisions of building regulation codes. Results . The contribution of the work results to the new edition of the set of rules JV 2.13130.2020 “Fire protection systems. Fire resistance of protected items” ensures the harmonization of this document with the requirements of building regulation codes. Conclusion . The research findings allow to optimize the requirements for fire resistance limits, fire hazard classes of building structures, and the size of fire compartments. The research results also help to clarify these requirements with regard for the characteristics of buildings that perform different functions.
- Published
- 2021
12. The results of introduction of subtropical, southern fruit and flower-ornamental crops in FRC SSC of RAS
- Author
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A. V. Ryndin, R. V. Kulyan, N. A. Slepchenko, T. V. Tutberidze, and V. M. Gorshkov
- Published
- 2021
13. STRESS WEATHER FACTORS OF MANDARIN CULTIVATION (CITRUS RETICULATA BL. VAR. UNSHIU TAN.) IN THE SUBTROPICS OF RUSSIA
- Author
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V. M. Gorshkov
- Subjects
Crop ,Limiting factor ,Horticulture ,Phenology ,Shoot ,Ripening ,Precipitation ,Subtropics ,Biology ,Plant cultivation - Abstract
The aim of the research was to study the weather risks when growing the main commercial citrus crop, mandarin, in the subtropics of Russia. The most informative sources for a complex of environmental factors are temperature and precipitations. The characteristics of the main weather factors are given, which can determine both the optimal growing conditions for the mandarine ( Citrus reticulata Bl. var. unhiu Tan . ) varieties ‘Unshiu’, ‘Iveria’, ‘Kovano-Vase’, ‘Miagava-Vase’, and limiting factors of plant cultivation in the studied region. Phenological observations have established that the first phase of “budding” depends on the sum of temperatures in March-April. It was 113 ° C in 2015, 225 °С in 2016, 183 °С in 2017 and 244 °С in 2018. Flowering begins in May-June when the sum of effective temperatures reaches 502 °С, at min 490 °С and max 512 °С. The duration of the full period, from «budding» to «fruit ripening», varies depending on weather conditions: temperature, precipitation, and can last from 170 to 191 days. A more significant role in the timing of the onset and duration of the phenological phases of mandarin development is played by the water-thermal regime of the year. Weather factors manifested themselves on the growth processes of the studied varieties of mandarin. The total length of growth in ‘Iveria’ and ‘Kovano-Vase’ was higher than that in ‘Unshiu’ and ‘Miagawa-Vase’. The same feature was noted in the growing shoots of the vigorous variety ‘Unshiu’, it was 8.5 cm, and of the medium-sized ‘Iveria’ — 7.5 cm. For the dwarf forms ‘Kovano-Vase’ and ‘Miagawa-Vase’ it was 7.5 cm and 6.8 cm respectively. Weather conditions and the limiting factor (lack of atmospheric precipitation) have a negative impact not only on the timing of the main phenological phases of mandarin development (flowering, second growth of shoots), but also on their productivity.
- Published
- 2021
14. Bone marrow hematopoiesis in patients with chronic myeloid leukemia treated with myelosan (milleran)
- Author
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Ya. Z. Gorelov and V. S. Gorshkov
- Subjects
General Medicine - Abstract
In recent years, myelosai (milleran) has become widely used to treat patients with chronic myelosis.
- Published
- 2021
15. Analytical-Experimental Evaluation of the Fatigue Resistance for Aircraft Fuselage Skin in the Case of Corrosion Damage
- Author
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V. S. Shapkin, V. A. Gorshkov, A. V. Lapaev, A. A. Bogoyavlenskii, and K. A. Matveev
- Subjects
Fatigue resistance ,Materials science ,Fuselage ,chemistry ,Aluminium ,Airframe ,Metallurgy ,technology, industry, and agriculture ,Aerospace Engineering ,chemistry.chemical_element ,equipment and supplies ,Corrosion - Abstract
The paper presents the results of research aimed at the fatigue evaluation of airframe elements made of aluminum alloys damaged by corrosion. Fatigue tests of the samples and metallographic studies were performed. The results of multi-year research on the effect of corrosion damage on the fatigue performance of aluminum alloys were summarized, and an observed dependence was established between the corrosion damage parameter and the material characteristics.
- Published
- 2021
16. Radial Growth of Scots Pine (Pinus sylvestris L.) in Lichen Pine Forests and Woodlands of the Northern Taiga
- Author
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A. Yu. Lyanguzov, N. I. Stavrova, V. V. Gorshkov, and P. N. Katjutin
- Subjects
0106 biological sciences ,0301 basic medicine ,biology ,Range (biology) ,Taiga ,Scots pine ,Forestry ,Woodland ,Vitality ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,Basal area ,03 medical and health sciences ,030104 developmental biology ,Radial growth ,General Agricultural and Biological Sciences ,Lichen - Abstract
The vitality structure of forest stands and the annual radial increment of Scots pine trees of different vital state categories growing in the northern taiga middle-aged lichen pine forests and woodlands of the Kola Peninsula have been studied. This study has shown a prevalence (60–75%) of weakened and strongly weakened trees in the Scots pine forests and woodlands; the fraction of healthy trees does not exceed 15–20% (30% in terms of the stand volume). In the age range of 30–85 years, the radial growth of Scots pine trees in the communities studied decreases 1.5- to 3.5-fold, and the annual basal area increases 1.5- to 5-fold. Differentiation of trees of differing vitality in relation to the radial increment is clearly manifested starting from 50 years after the fire. The ratio between the annual basal areas of healthy, weakened, strongly weakened, and dying trees in pine forests and woodlands is 8 : 5 : 2.5 : 1 and 11 : 5.5 : 3.5 : 1, respectively. The difference between the resource potentials of pine woodlands and forests is 1 : 1.6 and is manifested at the level of communities, but not at the level of individuals.
- Published
- 2021
17. Digital system for frequency regulation and stabilisation of a four-frequency Zeeman laser gyroscope
- Author
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M. E. Grushin, M. A. Ivanov, I. I. Savelyev, Yu Yu Kolbas, A. I. Varenik, and V. N. Gorshkov
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Physics ,Zeeman effect ,business.industry ,Statistical and Nonlinear Physics ,Gyroscope ,Signal ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Compensation (engineering) ,law.invention ,Magnetic field ,symbols.namesake ,Resonator ,Optics ,law ,Ring laser gyroscope ,symbols ,Electrical and Electronic Engineering ,business ,Intensity modulation - Abstract
We report the results of theoretical and experimental studies of a digital system for regulating and stabilising the frequency of a four-frequency Zeeman laser gyroscope (ZLG), in which generation occurs simultaneously on two longitudinal modes with orthogonal circular polarisations; therefore, four light waves propagate in the optical ring resonator. In contrast to a two-frequency Zeeman laser gyroscope, a four-frequency ZLG does not use the intensity modulation signal of one of the light waves, which appears when an alternating magnetic field is applied to the active medium, to analyse the frequency detuning of longitudinal modes from the centre of the active-medium gain contour. At the same time, it is possible to construct a digital perimeter adjustment system (PAS), which allows the resonator perimeter to be adjusted so that the magnetic components of the zero drift of the gyroscope for two longitudinal generation modes are equal and opposite in sign. Due to this, almost complete compensation for the magnetic component of the zero drift of the gyroscope is realised in a four-frequency ZLG. The use of the digital system makes it possible to provide a higher accuracy of the resonator perimeter adjustment than that in a two-frequency ZLG, even with a relatively small bit capacity of the PAS digital-to-analogue conversion (DAC), and to fully take advantage of the capabilities of a four-frequency ZLG to reduce the magnetic sensitivity.
- Published
- 2021
18. Production of evaporation residues in the O16+Pb208 and Ca48+Yb176 reactions
- Author
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R. N. Sagaidak, M. L. Chelnokov, V. I. Chepigin, V. A. Gorshkov, O. N. Malyshev, A. G. Popeko, A. I. Svirikhin, and A. V. Yeremin
- Published
- 2022
19. Biochemical quality indicators of tangerine fruits grown in the subtropics of rus-sia compared with imported fruits
- Author
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V. M. Gorshkov, Yu. S. Abilfazova, and L. S. Vikulova
- Subjects
varieties ,fruit diseases ,food and beverages ,pomology ,tangerines ,glucoacidometric indicator ,TP368-456 ,imported products ,Food processing and manufacture ,physical and chemical indicators - Abstract
The article indicates pomological signs of tangerine: peel and pulp color, number of slices, fruit size, shape, taste, aroma and juiciness of a fruit. Physicochemical characteristics of tangerine fruits are shown: sugar, acidity, dry matter, vitamin C. A comparative biochemical assessment of tangerine fruits growing in the subtropical zone of the Krasnodar Territory and imported ones is carried out. The studies have been carried out in VNIIITsiSK in Sochi.6 tested varieties of imported tangerine fruits were infected with penicillosis (Penicillium expancym Link) and anthracnosis (the pathogenic agent is Colletotrichum gloeosporioides Penz. Fungus). A physiological peta disease (deep pit) was found, which affected fruits on trees and appeared during storage with temperature regime violation [13]. Biochemical analysis revealed a low concentration of ascorbic acid, acidity and an increased content of dry soluble substances in the imported fruits in comparison with fruits grown in the humid subtropics of Russia.
- Published
- 2019
20. Oxygen Electroreduction on the Anthraquinone-Modified Thin-Film Carbon–Polymer Composite in Alkaline Solution
- Author
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A. A. Bosyachenko, V. V. Volkov, T. A. Kravchenko, V. A. Krysanov, M. Yu. Chaika, D. V. Konev, and V. S. Gorshkov
- Subjects
Tafel equation ,Materials science ,Inorganic chemistry ,Limiting current ,chemistry.chemical_element ,02 engineering and technology ,Glassy carbon ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrocatalyst ,01 natural sciences ,Anthraquinone ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Electrochemistry ,Surface modification ,Rotating disk electrode ,0210 nano-technology ,Carbon - Abstract
Technical carbon CH210 was processed by chemical reduction of the diazo derivative of anthraquinone for surface modification. The presence of anthraquinone groups on the carbon surface was confirmed by attenuated total internal reflection (ATR) IR spectroscopy. Carbon with the anthraquinone-modified surface was deposited on a glassy carbon support using a polymer binder. The behavior of the thus obtained catalyst in oxygen electroreduction in an alkaline medium was studied by the rotating disk electrode method. The kinetic characteristics of the reaction were determined: half-wave potential, limiting current, number of electrons, Tafel slope, exchange current, and charge transfer coefficient. Hydrogen peroxide is formed on the surface of the carbon–polymer composite at higher positive potentials than on technical carbon and glassy carbon electrodes. Therefore, the proposed material can be used as an effective electrocatalyst for this reaction.
- Published
- 2019
21. Biotic pump of atmospheric moisture as driver of the hydrological cycle on land
- Author
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A. M. Makarieva and V. G. Gorshkov
- Subjects
Technology ,Environmental technology. Sanitary engineering ,TD1-1066 ,Geography. Anthropology. Recreation ,Environmental sciences ,GE1-350 - Abstract
In this paper the basic geophysical and ecological principles are jointly analyzed that allow the landmasses of Earth to remain moistened sufficiently for terrestrial life to be possible. 1. Under gravity, land inevitably loses water to the ocean. To keep land moistened, the gravitational water runoff must be continuously compensated by the atmospheric ocean-to-land moisture transport. Using data for five terrestrial transects of the International Geosphere Biosphere Program we show that the mean distance to which air fluxes can transport moisture over non-forested areas, does not exceed several hundred kilometers; precipitation decreases exponentially with distance from the ocean. 2. In contrast, precipitation over extensive natural forests does not depend on the distance from the ocean along several thousand kilometers, as illustrated for the Amazon and Yenisey river basins and Equatorial Africa. This points to the existence of an active biotic pump transporting atmospheric moisture inland from the ocean. 3. Physical principles of the biotic moisture pump are investigated based on the previously unstudied properties of atmospheric water vapor, which can be either in or out of aerostatic equilibrium depending on the lapse rate of air temperature. A novel physical principle is formulated according to which the low-level air moves from areas with weak evaporation to areas with more intensive evaporation. Due to the high leaf area index, natural forests maintain high evaporation fluxes, which support the ascending air motion over the forest and "suck in" moist air from the ocean, which is the essence of the biotic pump of atmospheric moisture. In the result, the gravitational runoff water losses from the optimally moistened forest soil can be fully compensated by the biotically enhanced precipitation at any distance from the ocean. 4. It is discussed how a continent-scale biotic water pump mechanism could be produced by natural selection acting on individual trees. 5. Replacement of the natural forest cover by a low leaf index vegetation leads to an up to tenfold reduction in the mean continental precipitation and runoff, in contrast to the previously available estimates made without accounting for the biotic moisture pump. The analyzed body of evidence testifies that the long-term stability of an intense terrestrial water cycle is unachievable without the recovery of natural, self-sustaining forests on continent-wide areas.
- Published
- 2007
22. Investigation of the Composition and Properties of a Cr2AlC MAX Phase-Based Material Prepared by Metallothermic SHS
- Author
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A. E. Sytschev, V. A. Gorshkov, P. A. Miloserdov, A. V. Karpov, and A. S. Shchukin
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010302 applied physics ,Materials science ,Scanning electron microscope ,Analytical chemistry ,Prepared Material ,chemistry.chemical_element ,Atmospheric temperature range ,Condensed Matter Physics ,01 natural sciences ,chemistry ,Aluminium ,Electrical resistivity and conductivity ,Phase (matter) ,0103 physical sciences ,Materials Chemistry ,010306 general physics ,Inert gas ,Electrical conductor - Abstract
Cast composite material based on Cr2AlC MAX phase has been prepared by metallothermic self-propagating high-temperature synthesis (SHS) from a mixture of powders of chromium oxide, aluminum, and carbon. The experiments have been performed using an SHS reactor with a volume V of 3 L under an excess inert gas (Ar) pressure (P = 5 MPa). The prepared material has been studied by X-ray diffraction analysis, scanning electron microscopy, and local microstructural analysis. The quantitative analysis has been performed by the Rietveld method. The electrical resistivity was measured in the 100–1300 K temperature range. The resulting material is an electrical conductor with metallic conductivity in the 100–1300 K temperature range, and has the electrical resistivity of the same order as the samples containing 100% Cr2AlC.
- Published
- 2019
23. Identification Method of the Time-Series Properties of the Aviation Events
- Author
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A. I. Pleshakov, N. N. Sirotin, V. A. Gorshkov, T. A. Zenchenko, and A. I. Frolkov
- Subjects
Series (mathematics) ,Computer science ,Aviation ,business.industry ,Chaotic ,Aerospace Engineering ,Lyapunov exponent ,Identification (information) ,symbols.namesake ,Noise ,Colors of noise ,symbols ,Applied mathematics ,Russian federation ,business - Abstract
The new empirical method was developed for estimating the relative contribution of the deterministic, chaotic and noise components in the time series of the accident rate of aircraft in the Armed Forces of the Russian Federation. The behavior analysis of the senior Lyapunov exponent dependencies on the parameter of “number of neighbors used” specified in the algorithm in the case of model series (deterministic, chaotic and colored noise series) enabled to estimate the boundaries of numerical values of the parameters typical for these types of series and then apply them to the noise percentage analysis in the real series of the aviation events number.
- Published
- 2019
24. Detailed Study of External Correlations in the Low-Energy Spectrum of Beryllium-6
- Author
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I. A. Egorova, V. A. Gorshkov, E. Yu. Nikolskii, P. G. Sharov, G. Kaminski, R. S. Slepnev, A. A. Bezbakh, S. I. Sidorchuk, S. V. Stepantsov, I. G. Mukha, V. Chudoba, S. A. Krupko, Yu. L. Parfenova, A. S. Fomichev, S. N. Ershov, A. V. Gorshkov, R. Wolski, L. Standylo, G. M. Ter-Akopian, Mikhail V. Zhukov, and L. V. Grigorenko
- Subjects
Physics ,Low energy ,chemistry ,Volume (thermodynamics) ,Hadron ,Spectrum (functional analysis) ,Continuum (design consultancy) ,General Physics and Astronomy ,chemistry.chemical_element ,Beryllium ,Computational physics ,Charge exchange - Abstract
Three-body continuum p-p-α for the charge exchange reaction 1H(6Li,6Be)n is studied in detail. The data are obtained with a high volume of statistics (approximately 4.7 million events), making it possible to analyze three-particle correlations. Detailed information about the structure of 6Ве and the reaction is obtained as a result.
- Published
- 2019
25. A method of physicochemical treatment of the wood pulp based on cold refining
- Author
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D. N. Vtyurina, Sergey V. Stovbun, Sergey N. Nikolsky, Galina G. Politenkova, K. I. Kovaleva, D. S. Gerasimov, V. V. Gorshkov, and Mariya G. Mikhaleva
- Subjects
Materials science ,Pulp (paper) ,Final product ,Chemical modification ,Raw material ,engineering.material ,Condensed Matter Physics ,Pulp and paper industry ,chemistry.chemical_compound ,chemistry ,engineering ,Viscose ,Cellulose ,Mass fraction ,Water content - Abstract
We develop a universal method of physicochemical refining of the market wood pulp to the level given by the requirements of State standards for fibrous semi-finished products for deep chemical processing into various functional derivatives and artificial materials (Na-CMC, colloxylin, pyroxylin, viscose and cordage fibers). An experimental laboratory modular setup was designed and manufactured at the Semenov Institute of Chemical Physics (RAS). The modification includes the following stages: preparation of the raw materials, chemical modification, washing, and drying of the final product. At the first stage the original market pulp was dispersed to obtain a homogeneous suspension, cleaned and dried. After washing, the refined cellulose was dried in two stages: i) microwave drying to a moisture content of 45 - 50%; ii) convective drying with warm air to a moisture content of 5 - 9%. The basis of chemical modification is the stage of cold refining. Compared to other methods of refining wood pulp (acid-alkali treatment, hot refining) cold refining does not require special equipment which operate at elevated temperature and pressure. The developed procedure of physicochemical modification of the market wood pulp is universal, since it has no restrictions on the brand of the initial raw material. Depending on the quality requirements to the final product, the proposed method provides obtaining all brand of cellulose for chemical processing — viscose cellulose, acetate cellulose, cord cellulose. Mass fraction of the alpha-cellulose in the final product ranges from 93 to 99%.
- Published
- 2019
26. EXPERIMENTAL LABORATORY EQUIPMENT FOR PHYSICAL-CHEMICAL MODIFICATION OF WOOD PULP
- Author
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Aleksinsky Chemical Combine, Sergey N. Nikolsky, Galina G. Politenkova, V. V. Gorshkov, K. I. Kovaleva, S.V. Stovbun, Npo Asu Tp, D. S. Gerasimov, Mariya G. Mikhaleva, and V.P. Melnikov
- Subjects
Materials science ,Physical chemical ,Pulp (paper) ,engineering ,engineering.material ,Experimental laboratory ,Pulp and paper industry - Published
- 2019
27. Long-Term Postfire Changes of Soil Characteristics in Dark Coniferous Forests of the European North
- Author
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N. I. Stavrova, V. V. Gorshkov, I. Yu. Bakkal, I. V. Drozdova, N. V. Alekseeva-Popova, and I. B. Kalimova
- Subjects
Taiga ,Soil Science ,Fe content ,Forestry ,04 agricultural and veterinary sciences ,010501 environmental sciences ,01 natural sciences ,Soil characteristics ,Kola peninsula ,Soil water ,040103 agronomy & agriculture ,Litter ,0401 agriculture, forestry, and fisheries ,Environmental science ,Soil horizon ,Loss on ignition ,0105 earth and related environmental sciences ,Earth-Surface Processes - Abstract
Changes in characteristics of the upper soil horizons in dark coniferous forests in the course of their postfire restoration were assessed. The studies were carried out in the northern taiga forests exposed to fire 8 to 400 years ago in the Kola Peninsula and in the middle taiga forests burned 70 and more than 500 years ago in the northern Cis-Ural region (Pechoro-Ilychskii State Biospheric Reserve). Samples from 23 soil pits on 20 test plots were analyzed. The actual acidity, loss on ignition, contents of exchangeable K, Ca, and Mg and mobile Mn, Fe, and Zn were determined. Two boundaries (~80 and 160–200 years after fire) and three main periods in the postfire dynamics of the upper soil horizons properties were established. The ash and Fe content in the litter was found to decreases about 80 years after the fire. In 160–200 years after fire, the thickness of the forest litter is restored and stabilized at the level of about 9.7 (8.3–10.4) cm; the pH value and the Ca, K, and Mn concentrations in the litter become lower. Thus, it can be concluded that the properties of soils under dark coniferous forests of the European North considerably change in the course of postfire successions.
- Published
- 2019
28. Challenges of in vitro conservation of Сitrus germplasm resources
- Author
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Valentina Malyarovskaya, R. V. Kulyan, Yuriy L. Orlov, Ruslan S Rakhmangulov, Lidiia Samarina, Alexey V. Ryndin, and V. M. Gorshkov
- Subjects
0106 biological sciences ,Germplasm ,culture media ,micropropagation ,trueto-type ,business.industry ,slow growth conservation ,food and beverages ,endophytes ,nodal explant ,Biology ,QH426-470 ,010603 evolutionary biology ,01 natural sciences ,General Biochemistry, Genetics and Molecular Biology ,citrus ,Biotechnology ,contamination ,Genetics ,General Agricultural and Biological Sciences ,business ,010606 plant biology & botany - Abstract
The main problems of establishment a slow growth in vitro collection of citrus and other tree crops cultivars are high degree of fungal contamination of bud explants and low growth potential of shoots. In this regard, the aim of current research is to assess the efficiency of decontamination procedure and the possibility of tissue culture initiation and slow growth conservation of valuable lemon cultivars. The best results of surface sterilization were obtained using immersion solutions of 0.3 % Veltolen – 25 minutes or 10 % Domestos – 25–30 minutes. In these treatments, 27.7–33.0 % of aseptic explants were obtained, respectively. However, after the third subculture, the yield of aseptic viable explants decreased till 10 % as a result of secondary contamination by endophytic fungi. The addition of biocide (“Gavrish”) in a nutrient medium at a concentration of 1 ml/l helped to increase the yield of aseptic viable explants till 50 %. However, after the third subculture the photosynthetic activity and the pigments content as well as growth rate decreased. Plants dropped yellowish leaves and eventually died. Thus, 37.35 % of plantlets survived after 8 months of conservation, and only 14.6 % survived after 10 months. Even after the third month of conservation significant decrease in the viability index and the coefficient of photosynthetic activity occurred in plants. Chlorophyll a in leaves decreased from 1.59 to 1.14 mg/g during 12 months in vitro conservation. The similar tendency observed on clorophyll b and carotenoids content. The experiments were carried out for 5 years using different lemon cultivars and other citrus varieties and cultivars. Thus, micropropagation and slow growth in vitro conservation of valuable lemon cultivars are still problematic and requires new technical solutions due to the low growth potential of plantlets raised from the mature buds that is consistent with the data of other researchers.
- Published
- 2019
29. Stringent response is key player in plant-microbe interaction
- Author
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Olga Parfirova, O.E. Petrova, J. P. Sergeeva, and V. Yu. Gorshkov
- Subjects
Stringent response ,fungi ,Key (cryptography) ,food and beverages ,Plant microbe ,Biochemical engineering ,Biology - Abstract
Bacterial SpoT-dependent SR was activated in Pectobacterium atrosepticum when pathogen infected potato as well as tobacco plants. Pba induced plastid stringent response in tobacco plants, but not in potato plants. Jasmonic acid defense pathway was activated in tobacco plants, provoking rapid maceration of plant tissues. Salicylic acid defense pathway was induced in potato plants, probably ensuring a more prolonged coexistence of the phytopathogen with its host.
- Published
- 2020
30. Influence of Conductive Dopants on Properties of Nanostructured Carbon-Based Electrochemical Capacitors
- Author
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T. A. Kravchenko, V. S. Gorshkov, A. S. Ermakova, A. N. Ermakov, and M. Yu. Chaika
- Subjects
Materials science ,Dopant ,General Engineering ,02 engineering and technology ,Carbon black ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Electrochemistry ,01 natural sciences ,0104 chemical sciences ,law.invention ,Active layer ,Capacitor ,law ,Electrode ,Specific energy ,General Materials Science ,Composite material ,0210 nano-technology ,Electrical conductor - Abstract
The specific energy parameters of nanostructured electrode materials of electrochemical capacitors obtained by the method of multistage calendering are studied in this work. The dependence of electrical conductivity; the specific capacity of an electrical double layer of electrodes; and the internal resistance of electrochemical capacitors on the nature, quantity, and spatial localization (in the volume of the active layer and/or at the active layer–current collector interface) of conductive dopants (carbon black and grown in vacuum carbon fibers) are examined.
- Published
- 2018
31. Algorithm for Physiological Interpretation of Transcriptome Profiling Data for Non-Model Organisms
- Author
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R. F. Gubaev, V. Y. Gorshkov, L. M. Gapa, N. E. Gogoleva, E. P. Vetchinkina, and Y. V. Gogolev
- Subjects
Structural Biology ,Biophysics - Published
- 2018
32. The nonmagnetic component of the zero bias of a Zeeman laser gyroscope
- Author
-
Yu Yu Kolbas, V. N. Gorshkov, and M. E. Grushin
- Subjects
010302 applied physics ,Physics ,Zeeman effect ,Condensed matter physics ,Statistical and Nonlinear Physics ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,symbols.namesake ,Component (UML) ,0103 physical sciences ,symbols ,Ring laser gyroscope ,Electrical and Electronic Engineering ,Zero bias - Published
- 2018
33. Redox Sorption of Oxygen Dissolved in Water on Copper Nanoparticles in an Ion Exchange Matrix
- Author
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V. S. Gorshkov, L. N. Polyanskii, V. E. Pridorogina, D. D. Vakhnin, and T. A. Kravchenko
- Subjects
Ion exchange ,chemistry.chemical_element ,Sorption ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Chemical reaction ,Oxygen ,Copper ,Redox ,0104 chemical sciences ,Metal ,Chemical engineering ,chemistry ,visual_art ,visual_art.visual_art_medium ,Physical and Theoretical Chemistry ,0210 nano-technology ,Polarization (electrochemistry) - Abstract
The redox sorption of molecular oxygen from water by a thin granular layer of a copper-ion exchanger nanocomposite in the currentless mode and under cathodic polarization is studied. The speed of propagation of the boundaries of the chemical reaction of stepwise oxidation of copper nanoparticles under the conditions of polarization slows considerably. At the same time, the amount of electrochemically regenerated copper from the resulting oxides that is capable of interacting with oxygen again grows. The stationarity of the redox sorption of oxygen is due to the equality of the rates of oxidation and reduction of the metallic component of the composite.
- Published
- 2018
34. Genetic diversity and phylogenetic relationships among citrus germplasm in the Western Caucasus assessed with SSR and organelle DNA markers
- Author
-
R. V. Kulyan, V. M. Gorshkov, Henryk Flachowsky, Magda-Viola Hanke, Lidia Samarina, Natalia G. Koninskaya, Stefanie Reim, and Alexey V. Ryndin
- Subjects
0106 biological sciences ,0301 basic medicine ,Germplasm ,Genetic diversity ,Phylogenetic tree ,Haplotype ,Horticulture ,Biology ,01 natural sciences ,03 medical and health sciences ,030104 developmental biology ,Evolutionary biology ,Genetic marker ,Phylogenetics ,Genetic structure ,Cultivar ,010606 plant biology & botany - Abstract
Characterization of genetic diversity in germplasm collections is fundamental for an efficient management and utilization. The citrus germplasm in the Western Caucasus represent one of the most northerly citrus collections. The collection contains numerous cultivars specifically selected for frost-tolerance, which are valuable as genetic resources for citrus breeding programs worldwide. Currently, the field citrus collection consists of more than 200 accessions, but their taxonomic assignment, genetic structure and diversity has not been clarified. In our study, 130 different citrus accessions including 24 species or interspecific hybrids maintained and bred at the Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences (FRC SSC RAS) were genetically investigated using 13 biparental (ncSSR) and 13 uniparental (orgDNA) markers. After STRUCTURE analysis, the single accessions were allocated to eight genetic clusters and their relationships were elucidated. This phylogenetic relationship was also confirmed by principal coordinates analysis (PCoA) and by dissimilarity analysis using DARwin. We identified twenty accessions as misclassified and reassigned them to the correct species. For the remaining 110 accessions the taxonomical assignment could be confirmed. A high genetic diversity was observed on basis of the nuclear ncSSR markers, while the detection of 19 different haplotypes allowed the distinct differentiation of the accessions within our collection. Our study showed that the combination of ncSSR and orgDNA was an efficient tool to estimate the genetic diversity, genetic structure and phylogeny in the FRC SSC RAS citrus germplasm collection. The results obtained are valuable for future management of the collection and the usage of individual accessions as genetic resource for citrus cultivar and rootstock breeding, especially in colder regions.
- Published
- 2021
35. Conceptual aspects of ecological studies: the role of the energy- and mass- exchange
- Author
-
V. G. Gorshkov and K. Ya. Kondratyev
- Subjects
ecología ,intercambio energía ,masa ,Geophysics. Cosmic physics ,QC801-809 - Abstract
La existencia de la vida sobre la Tierra es posible solo bajo condiciones de ciclos biogeoquímicos globales al nivel (p+ - P- )/P+ == X _ 10-4 , en donde p+ and P- son flujos de síntesis (+) y descomposición (-) de substancias orgánicas. Debido a que existen altas correlaciones entre las comunidades locales que forman ecosistemas de tamaños finitos, se puede alcanzar una igualdad aproximada (con una precisión del orden de 10-4 ) de p+ y P-. La estabilidad de estos ecosistemas locales se apoya en la selección de Darwin. Las fluctuaciones de escala pequeña de p+ y P- en un ecosistema local garantizan la transferencia de flujos básicos de materia y energía a través de partes no correlacionadas de tamaños microscópicos. La porción de consumo de energía por los organismos mayores no excede de 1 %. Por otra parte, el consumo actual de la producción primaria de energía por el hombre ha alcanzado cerca del 25%. Lo anterior ha producido un rompimiento de los ciclos de las substancias hasta un porcentaje bajo, verificado por los datos del ciclo global del carbón. doi: https://doi.org/10.22201/igeof.00167169p.1990.29.2.788
- Published
- 1990
- Full Text
- View/download PDF
36. Analytical Identification of Isolated Clustered Microcalcifications Based on the Distribution of Effective Atomic Numbers
- Author
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Prokopenko Sp, Rozhkova Ni, and V. A. Gorshkov
- Subjects
Physics ,Distribution (number theory) ,medicine.diagnostic_test ,Biomedical Engineering ,Subtraction ,Medicine (miscellaneous) ,Early detection ,Healthy tissue ,030218 nuclear medicine & medical imaging ,Combinatorics ,03 medical and health sciences ,Medical Laboratory Technology ,0302 clinical medicine ,030220 oncology & carcinogenesis ,medicine ,Mammography ,Asymmetric distribution ,Atomic number ,Biological system ,Effective atomic number - Abstract
The goal of this work was to improve the efficiency of early detection of microcalcifications, the earliest indicators of breast cancer. Studies have shown that the presence of isolated clustered microcalcifications in the mammary gland significantly increases the range of variation of effective atomic number and considerably changes its distribution. Conventional, subtraction, or dividing mammography or their linear convex combination may fail to visualize isolated clustered microcalcifications. However, the presence of microcalcifications in the mammary gland can be determined analytically from the distribution of the extreme terms of an ordered series of effective atomic numbers in the mammary gland. Then, the coordinates of the isolated clustered microcalcifications can be calculated. The distribution of the effective atomic numbers in healthy tissue without microcalcifications is symmetric and close to normal, while breast tissue with even a single isolated cluster of microcalcifications is characterized by an asymmetric distribution and high values of the maximum effective atomic numbers. An algorithm for calculating the coordinates of isolated microcalcifications is suggested.
- Published
- 2017
37. Investigation of temperature regimes of foam fire extinguishing in the tanks
- Author
-
D. V. Fedotkin, S. N. Kopylov, N. P. Kopylov, and V. I. Gorshkov
- Subjects
Flammable liquid ,Materials science ,Mixing (process engineering) ,Firefighting ,Heat transfer coefficient ,Mechanics ,Volumetric flow rate ,law.invention ,Ignition system ,chemistry.chemical_compound ,chemistry ,law ,Fire protection ,Heat equation - Abstract
When fire extinguishing foam is applied for fire suppression of flammable liquid in the tank, after the most part of the liquid mirror is already covered by a fire extinguishing foam layer, the fuel continues to burn at the side of the tank. This rather complex case is often implemented in practice, but it wasn’t fully described in the existing theoretical literature. Extinguishing of these last fire sources occur in the following two cases: § cooling of a free side of the tank to a temperature at which the side heated by flame ceases to serve as a source of ignition of fuel vapors; § lowering of the temperature of the combustible fluid located at the side surface of the reservoir to a temperature at which the ignition of the combustible mixture formed by mixing of the fuel vapor with air can not occur. The article presents the analysis of the two cases needed to extinguish remaining pockets of burning at the side of the tank. For the first case (cooling of a free side of the tank to a temperature at which the side heated by flame ceases to serve as a source of ignition of fuel vapors), the mathematical model describing the temperature change during the cooling of the sides of the reservoir was developed. Analytical solutions with certain assumptions were obtained. The expression that defines the time of extinguishing of flammable liquid was also obtained. The values of heat transfer coefficient calculated with the usage of the resulting equation together with the available experimental data obtained in the burning tank, are presented in the paper. The values of the heat transfer coefficient are 0.34¸0.51 W·m -2 ·K -1 . For the second case (lowering of the temperature of the combustible fluid to a temperature at which the ignition of the combustible mixture can not occur), the resulting expression describes changes in temperature of the side of the tank during cooling by fire extinguishing foam. The expression was derived from the heat equation with a number of assumptions and the usage of integrating methods of research of physical processes involving integral relations derived from the analysis of differential equations. The obtained equation of temperature change of the side of the tank while cooling by fire suppression foam during extinguishing of flammable liquid, can be later used in the modeling of processes of extinguishing of tanks and in calculating of the flow rate of the foam.
- Published
- 2017
38. The age of ground transport and technological machines as an impact factor effecting the failure rate
- Author
-
P. V. Druzhinin, N. T. Sandan, V. N. Gorshkov, S. E. Maksimov, and Malt named after General A. V. Khrulev
- Subjects
Impact factor ,Environmental science ,Failure rate ,Reliability engineering - Published
- 2017
39. SHS Metallurgy of Titanium–Chromium Carbide from CaCrO4 / TiO2 / Al / C System
- Author
-
O. M. Miloserdova, P. A. Miloserdov, V. A. Gorshkov, and V. I. Yukhvid
- Subjects
chemistry.chemical_compound ,Materials science ,Calcium chromate ,chemistry ,Metallurgy ,chemistry.chemical_element ,General Medicine ,Chromium carbide ,Titanium ,Carbide - Published
- 2018
40. HIGH-TEMPERAURE SYNTHESIS OF CAST CERAMIC MATERIALS BASED ON Cr2AlC MAX PHASE IN LAYERED AND MIXED SYSTEMS
- Author
-
V. A. Gorshkov, P. A. Miloserdov, V. I. Yukhvid, N. Yu. Khomenko, and N. V. Sachkova
- Published
- 2019
- Full Text
- View/download PDF
41. SHS of titanium–chromium carbides: influence of green composition
- Author
-
O. A. Golosova, P. A. Miloserdov, V. A. Gorshkov, and O. M. Miloserdova
- Published
- 2019
- Full Text
- View/download PDF
42. SYNTHESIS OF COMPOSITE MATERIALS IN THE Ti–Cr–B SYSTEM FROM MIXTURES BASED ON CALCIUM CHROMATES
- Author
-
P. A. Miloserdov, V. A. Gorshkov, O. M. Miloserdova, and O. A. Golosova
- Published
- 2019
- Full Text
- View/download PDF
43. Specific Aspects of Laser Cavity Optical Path Control System and Vibrational Error of the Zeeman Laser Gyroscope Filled with 50 % Mixture of Neon Isotopes
- Author
-
Yu Yu Kolbas, M. E. Grushin, and V. N. Gorshkov
- Subjects
Physics ,Zeeman effect ,business.industry ,law.invention ,symbols.namesake ,Optical path ,Optics ,Isotopes of neon ,law ,Control system ,Optical cavity ,Ring laser gyroscope ,symbols ,business - Published
- 2018
44. Innovative technologies and problems of ecological Agriculture of Russia
- Author
-
V A Kundius, V V Gorshkov, and I V Kovaleva
- Subjects
Organic product ,Food security ,State (polity) ,Natural resource economics ,Agriculture ,business.industry ,media_common.quotation_subject ,Ecological farming ,Organic farming ,Production (economics) ,Certification ,business ,media_common - Abstract
The modern history of organic farming in Russia began in 1989 with the implementation of the state program “Alternative Agriculture”. Organic agriculture in Russia was initially considered as a condition and mechanism for the development of small and medium agricultural forms of production. The increase in the production of agricultural products and food in excess of the normative requirements, ensuring the country’s food security led to the expansion of exports. Russia’s aptitude to uphold fulfillment with global standards and be competitive in world markets where ecologically clean agricultural products are in demand is quite high: huge reserves of land in Russia, the introduction of ecological farming systems must be carried out on huge areas, coordinated with a large number of small owners. Information support for farmers about new, more efficient technical means, biotechnologies in organic agriculture and certification of organic products for environmental friend-liness, safety of manufactured products, the use of intensive biotechnologies, financial support of organic agriculture, processing and sale of organic products remain problematic.
- Published
- 2021
45. Focusing aspherical optical components for next generation megajoule laser system
- Author
-
A. S. Nevrov, V. A. Gorshkov, A. V. Smirnova, and A. S. Saveliev
- Subjects
Physics ,History ,Optics ,law ,business.industry ,Laser ,business ,Computer Science Applications ,Education ,law.invention - Abstract
The idea of creating a laser thermonuclear installation was considered back in 1960s by Basov N and Krokhin O. [1]. Facility for conducting research near DT-fuel ignition threshold is being commenced at the moment [2], assembly of the laser installation interaction chamber has already been completed. To focus laser sight on the target, off-axis aspherical lenses are used as part of the final optical module (FOM). These lenses are manufactured using the developed technology of forming off-axis aspherical surfaces of optical parts. Combined use of shaping technology and stand for monitoring angular deviations of the surfaces of FOM lenses, allowed us to achieve high quality off-axis aspheric optical elements both in terms of standard deviation of the surface shape, as well as the value of the scattering circle.
- Published
- 2020
46. Effect of vanadium doping on the magnetic properties of LiMnPO4
- Author
-
Yu. G. Chukalkin, N. I. Medvedeva, A. S. Semenova, Dina G. Kellerman, and V. S. Gorshkov
- Subjects
Materials science ,Annealing (metallurgy) ,Vanadium doping ,Inorganic chemistry ,Doping ,Vanadium ,chemistry.chemical_element ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Magnetic susceptibility ,Electronic, Optical and Magnetic Materials ,chemistry ,0103 physical sciences ,010306 general physics ,0210 nano-technology - Published
- 2016
47. Structure of Information Model of Steel Tanks
- Author
-
V. V. Gorshkov, V. G. Mokrozub, T. S. Gorshkova, and K. D. Manuilov
- Subjects
Structure (mathematical logic) ,Engineering ,Engineering drawing ,business.industry ,Basic dimension ,020209 energy ,General Chemical Engineering ,Intelligent decision support system ,Energy Engineering and Power Technology ,02 engineering and technology ,Distinctive feature ,Type (model theory) ,computer.software_genre ,Manufacturing engineering ,Fuel Technology ,Geochemistry and Petrology ,Information model ,0202 electrical engineering, electronic engineering, information engineering ,Key (cryptography) ,Computer Aided Design ,business ,computer - Abstract
The structure and key elements of the information model of horizontal steel tanks and underground tanks, on which the development of intelligent CAD systems are based, are described. The initial model inputs: functions, operating conditions, and basic dimensions of the constructed objects. The result: apparatus design variants that satisfy the initial data and the restrictions of the normative documents. The key elements of the information model: register of elements, model of structure, model of parameters, model of element positioning in space, and model of technical specifications of the designed equipment. A distinctive feature of the proposed model is use of If…Then… type of production rules. The model is designed for use at the stages of structural and parametric synthesis, construction of a 3D model, and drawing up of technical specifications of the designed objects with minimal involvement of the designer.
- Published
- 2016
48. Automated technology of forming high-precision aspheric optics for multipurpose optical systems
- Author
-
V. A. Gorshkov, A. S. Nevrov, and A. V. Smirnova
- Subjects
Optics ,Computer science ,business.industry ,business - Abstract
The report presents modern manufacturing technology of high-precision optical parts used in optical-electronic systems for various purposes. The report also presents the complex technology of automated shaping (TESAF) of aspherical, including off-axis surfaces of optical elements for optical-electronic systems. In this paper we consider various methods of forming optical parts with virtually any aspherization value and with different values of the off-axis parameter (off-axis aspheric), with the achievement of surface shape accuracy in the limit λ/60 ÷ λ/80 (λ = 0,6328 μm), by the criterion of the standard deviation. Optical systems manufactured by TESAF technology are already being successfully used at present.
- Published
- 2020
49. SHS METALLURGY OF CAST OXIDE MATERIALS
- Author
-
V. A. Gorshkov and P. A. Miloserdov
- Subjects
chemistry.chemical_compound ,Materials science ,chemistry ,Metallurgy ,Oxide - Published
- 2018
50. INVESTIGATION OF THE CaCrO4/TiO2/Al/C SYSTEM FOR THE PRODUCTION OF TITANIUM–CHROMIUM CARBIDE BY THE SHS METALLURGY METHOD
- Author
-
V. A. Gorshkov, O. M. Miloserdova, P. A. Miloserdov, and V. I. Yukhvid
- Subjects
chemistry.chemical_compound ,Materials science ,chemistry ,Metallurgy ,chemistry.chemical_element ,Chromium carbide ,Titanium - Published
- 2018
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