147 research outputs found

    Application of the analytic hierarchy process in a comparative analysis of automated information systems

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    In a scientific study, we investigated decision-making methods, in particular, the methods of expert estimations to solve problems. Reflected the possibility of using the analytic hierarchy process for researching and selection of information systems in accordance with the requirements of the customer. Comparative analysis has been performed on the example of automated library information systems

    ЭкологичСская ΠΎΡ†Π΅Π½ΠΊΠ° состояния растСний ΠΏΡ€ΠΎΠΈΠ·Ρ€Π°ΡΡ‚Π°ΡŽΡ‰ΠΈΡ… Π² Π·ΠΎΠ½Π΅ влияния выбросов ΠΆΠ΅Π»Π΅Π·ΠΎΡ€ΡƒΠ΄Π½Ρ‹Ρ… ΡˆΠ°Ρ…Ρ‚

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    Π’Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Ρ‹ исслСдования состояния растСний ΠΏΡ€ΠΎΠΈΠ·Ρ€Π°ΡΡ‚Π°ΡŽΡ‰ΠΈΡ… Π½Π° тСрриториях ΠΏΡ€ΠΈΠ»Π΅Π³Π°ΡŽΡ‰ΠΈΡ… ΠΊ ΠΆΠ΅Π»Π΅Π·ΠΎΡ€ΡƒΠ΄Π½ΠΎΠΌΡƒ ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ‚Ρƒ. УстановлСны закономСрности измСнСния стСпСни поврСТдСния ΠΎΠ·ΠΈΠΌΠΎΠΉ ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ‹ Π² зависимости ΠΎΡ‚ расстояния Π΄ΠΎ вСнтиляционных стволов ΠΆΠ΅Π»Π΅Π·ΠΎΡ€ΡƒΠ΄Π½ΠΎΠΉ ΡˆΠ°Ρ…Ρ‚Ρ‹.Π’ΠΈΠΊΠΎΠ½Π°Π½Ρ– дослідТСння стану рослин, Ρ‰ΠΎ Π·Ρ€ΠΎΡΡ‚Π°ΡŽΡ‚ΡŒ Π½Π° тСриторіях ΠΏΡ€ΠΈΠ»Π΅Π³Π»ΠΈΡ… Π΄ΠΎ Π·Π°Π»Ρ–Π·ΠΎΡ€ΡƒΠ΄Π½ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠ±Ρ–Π½Π°Ρ‚Ρƒ. ВстановлСно закономірності Π·ΠΌΡ–Π½ΠΈ ступСня пошкодТСння ΠΎΠ·ΠΈΠΌΠΎΡ— ΠΏΡˆΠ΅Π½ΠΈΡ†Ρ– Π² залСТності Π²Ρ–Π΄ відстані Π΄ΠΎ вСнтиляційних стволів Π·Π°Π»Ρ–Π·ΠΎΡ€ΡƒΠ΄Π½ΠΎΡ— ΡˆΠ°Ρ…Ρ‚ΠΈ.The studies of the status of plants growing in areas adjacent to the iron ore plant are conducted. The regularities of changes in the damage degree of winter wheat depending on the distance to the ventilation shafts of iron ore mines are fixed

    ВлияниС интСнсивной пластичСской Π΄Π΅Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ кручСния ΠΏΠΎΠ΄ квазигидростатичСским Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ Π½Π° структуру ΠΈ Ρ„Π°Π·ΠΎΠ²Ρ‹ΠΉ состав высокоазотистой аустСнитной стали Π₯20АГ20Π€2

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    We investigate the microstructure and microhardness of high-nitrogen austenitic steel Fe-20Cr-20Mn-2.6V-0.3C-0.8N (in wt. %) after upset and high-pressure torsion (HPT) (6GPa) for ?, ?, and 1 revolutions at room temperature. As the result of deformation, steel microhardness increases by 1.5 times after HPT. Slip, twinning, formation of localized deformation microbands, and precipitation hardening are the main deformation mechanisms under HPT, and the level of solid solution strengthening of steel remains high after deformation

    Автоматизированная систСма управлСния газоТидкостного струйного Π°ΠΏΠΏΠ°Ρ€Π°Ρ‚Π°

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    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° ΠΈ исслСдованиС Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ систСмы ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ газоТидкостного струйного Π°ΠΏΠΏΠ°Ρ€Π°Ρ‚Π°. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° структурной ΠΈ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉ схСм Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΠΈ, схСмы ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ², схСмы Π²Π½Π΅ΡˆΠ½ΠΈΡ… ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΎΠΊ, Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² управлСния тСхнологичСского ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Π°, Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌ пуска ΠΈ остановки ΠΏΠΎΠ΄Π°Ρ‡ΠΈ Ρ€Π°Π±ΠΎΡ‡Π΅Π³ΠΎ ΠΏΠΎΡ‚ΠΎΠΊΠ°.Development and research of an automated control system for a gas-liquid jet apparatus. Development of structural and functional automation schemes, information flow diagrams, external wiring diagrams, technological parameter control algorithms, an algorithm for starting and stopping the supply of a work flow

    Modelling of factors' influence on technical efficiency of enterprises according to their form of ownership

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    This paper is dedicated to the research of Russian enterprises' productivity according to their form of ownership: Russian (RO), Foreign (FO) and Join (JO). We investigated the financial and economic indicators for 386 Russian enterprises, which produce machines and equipment in conditions of unstable economy (2012-2016). We utilized DEA method, which classifies object as effective if it has the biggest output with the smallest inputs, for evaluation of enterprises' technical efficiency (TE). Afterwards, dependencies between TE performance and main economic indicators were highlighted. Hence, based on these detected dependencies, we gave recommendation for improving technical efficiency of enterprises for each type of ownership
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