224 research outputs found

    ИсслСдованиС Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² логичСского Π²Ρ‹Π²ΠΎΠ΄Π°

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    Decision support systems give an opportunity to Β«ascertainedΒ« information outputappropriate of user needs.SemanticV1.5beta package meant for representation and visualization knowledge by way of semantic network, as well as access to knowledge base on the graphical interface and query language.This article gives information about test and performance of indexing approach facts, realizedin SemanticV1.5beta

    Statistical analysis of industrial indicators of enterprises of various property forms

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    In this paper we study the impact of the economic crisis on the enterprises of subsection DM "Manufacture of transport means and equipment" manufacturing industries of Russia in the context of ownership. The study is based on comparative statistical analysis of available indicators of enterprises producing vehicles in 2013, 2014 and 2015 located in Russian, foreign and co-property

    ВозмоТности примСнСния Π»Π°Π·Π΅Ρ€Π½ΠΎΠΉ сварки для низкоуглСродистой ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΠΉ стали X80

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования являСтся стали ΠΊΠ°Ρ‚Π΅Π³ΠΎΡ€ΠΈΠΈ прочности Π₯80 послС ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠΉ ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΡŒΠ½ΠΎΠΉ ΠΏΡ€ΠΎΠΊΠ°Ρ‚ΠΊΠΈ с ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΠ΅ΠΌ ΠΏΡ€ΠΎΠΊΠ°Ρ‚ΠΊΠΈ Π² (?+?) – области ΠΈ ΠΏΠΎΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΌ ускорСнным ΠΎΡ…Π»Π°ΠΆΠ΄Π΅Π½ΠΈΠ΅ΠΌ. ЦСль Ρ€Π°Π±ΠΎΡ‚Ρ‹ – ΠΈΠ·ΡƒΡ‡ΠΈΡ‚ΡŒ микроструктуру ΠΏΡ€ΠΎΠΌΡ‹ΡˆΠ»Π΅Π½Π½ΠΎΠΉ Ρ‚Ρ€ΡƒΠ±Π½ΠΎΠΉ стали ΠΊΠ°Ρ‚Π΅Π³ΠΎΡ€ΠΈΠΈ прочности Π₯80 послС тСрмомСханичСской ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ, Π° Ρ‚Π°ΠΊΠΆΠ΅ особСнности формирования структур Π² Π·ΠΎΠ½Π΅ сварного соСдинСния стали Π₯80 ΠΏΠΎΠ΄ воздСйствиСм Π»Π°Π·Π΅Ρ€Π½ΠΎΠΉ сварки ΠΈ ΠΎΡ†Π΅Π½ΠΈΡ‚ΡŒ мСханичСскиС свойства ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… сварных соСдинСний. Π—Π½Π°Ρ‡ΠΈΠΌΠΎΡΡ‚ΡŒ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠΈ Π½ΠΎΠ²ΠΎΠΉ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ создания сварных соСдинСний для Π³Π°Π·ΠΎ- ΠΈ Π½Π΅Ρ„Ρ‚Π΅ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΎΠ² Ρ€Π°Π±ΠΎΡ‚Π°ΡŽΡ‰ΠΈΡ… Π² условиях Π½ΠΈΠ·ΠΊΠΈΡ… Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€.The object of research is steel of strength category X80 after controlled longitudinal rolling with the end of rolling in the (? + ?) region and subsequent accelerated cooling. The purpose of the work – is to study the microstructure of industrial pipe steel of strength category X80 after thermomechanical processing, as well as the features of the formation of structures in the weld zone of steel X80 under the influence of laser welding and to evaluate the mechanical properties of the welded joints. The significance of the work consists in the study of a new technology for creating welded joints in gas and oil pipelines working in difficult climatic conditions

    ΠŸΡ€ΠΎΠ΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ элСктричСской части Π’Π­Π¦ установлСнной ΠΌΠΎΡ‰Π½ΠΎΡΡ‚ΡŒΡŽ 127 ΠœΠ’Ρ‚

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    ΠžΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠΌ исслСдования являСтся элСктричСская Ρ‡Π°ΡΡ‚ΡŒ тСплоэлСктроцСнтрали. ЦСлью Ρ€Π°Π±ΠΎΡ‚Ρ‹ являСтся ΠΏΡ€ΠΎΠ΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ элСктричСской части тСплоэлСктроцСнтрали, Π²Ρ‹Π±ΠΎΡ€ основноС силовоС ΠΎΠ±ΠΎΡ€ΡƒΠ΄ΠΎΠ²Π°Π½ΠΈΠ΅, выполнСния расчСт Ρ€Π΅ΠΆΠΈΠΌΠ° Ρ€Π°Π±ΠΎΡ‚Ρ‹ трансформатора, исслСдованиС вставки постоянного Ρ‚ΠΎΠΊΠ°. ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ проСктирования тСплоэлСктроцСнтрали Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ ΠΈΡ… ΠΌΠΎΡ‰Π½ΠΎΡΡ‚ΡŒ ΠΎΠ±Ρ‹Ρ‡Π½ΠΎ Ρ‚Π°ΠΊΠΎΠ²Π°, Ρ‡Ρ‚ΠΎ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΡ‚ΡŒ элСктроэнСргиСй Π³ΠΎΡ€ΠΎΠ΄. Π’Π°ΠΊ ΠΆΠ΅ имССтся Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΡ‚ΡŒ Π³ΠΎΡ€ΠΎΠ΄ тСплоснабТСниСм.The object of the study is the electrical part of the co-generation plant. The aim of the work is the design of the electrical part of the co-generation plant, the selection of the main power equipment, the calculation of the operating mode of the transformer, the study of the high-voltage direct current link. The actuality of designing a co-generation plant is that their power is usually such that it can provide electricity to the city. It is also possible to provide the city with heat

    Analysis and prediction of copper surface roughness obtained by selective laser melting

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    The paper presents the results of experimental studies of the effect of mechanoactivation of the powder, argon shielding gas and the effect of technological modes of melting: the speed of the laser beam, the power of laser radiation, the scanning step, the preliminary temperature of heating the powder material on the surface roughness of the copper powder material obtained by selective laser melting. Experiments on the melting of copper powder are implemented on the installation of layer-by-layer laser melting of the original design, which allows to adjust all technological modes of melting. The surface roughness is determined on the non-contact digital microscope Olympus LEXT OLS4100. The mathematical dependence of the surface layer roughness of copper powder on the technological modes of melting is obtained on the basis of the theory of experiment planning and static processing of the results. The significant parameters of the regime-the power of laser radiation, the speed of the laser beam, the scanning step affecting the roughness of the layer. The positive effect of mechanical activation of powder material and protective atmosphere on the quality of the surface layer is shown

    Π Π°Π·Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° модуля дСтСктирования ΠΏΠΎΠ²Ρ€Π΅ΠΆΠ΄Π΅Π½ΠΈΠΉ Π½Π° ΠΊΡ€Ρ‹ΡˆΠ°Ρ… Π΄ΠΎΠΌΠΎΠ² для Π³Π΅ΠΎΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ CRM систСмы

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    Одной ΠΈΠ· возмоТностСй Π³Π΅ΠΎΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ CRM-систСмы являСтся ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΈΠ΅ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠΎΠΌ Π΄Π΅Ρ„Π΅ΠΊΡ‚ΠΎΠΌ ΠΊΡ€Ρ‹Ρˆ Π΄ΠΎΠΌΠΎΠ² с аэрофотоснимка. ПослС Π°Π½Π°Π»ΠΈΠ·Π° принимаСтся Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅ ΠΎ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΈΠΈ услуг Ρ€Π΅ΠΌΠΎΠ½Ρ‚Π° ΠΊΡ€Ρ‹ΡˆΠΈ для Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°. Данная стратСгия ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π½Π° ΠΏΡƒΡ‚Π΅ΠΌ внСдрСния модуля, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡŽΡ‰Π΅Π³ΠΎ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡ‚ΡŒ поврСТдСния ΠΊΡ€Ρ‹Ρˆ Π±Π΅Π· участия Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ°.One of the features of the geographic information CRM-system is the detection by person of a roof defect from an air photo. After analysis, the decision is made to offer roof repair services for a person. This strategy can be optimized by introducing a module that allows to determine roof damage without human intervention
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