3,140 research outputs found

    A Bundle Method for a Class of Bilevel Nonsmooth Convex Minimization Problems

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    Manufacture of desired end products by means of fine treatment of coal tar resin

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    The possibility of desired end product manufacture from by-product coke industry wastes is shown. A large number of valuable products can be obtained from different fractions of coal tar resin by their fine treatment. The products obtained in this way find application in medical and chemical industries and etc. Moreover, recycling of by-product coke wastes into end products solves the problem of their utilization

    High-boiling components in straw oil

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    Investigation of straw oil and polymer quality produced in the process of its regeneration has been carried out. The conclusions about using polymers as a material for base end products are made. Flow scheme of technological treatment of straw oil wastes is suggested

    Visualization in distance learning

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    The article gives practical recommendations to improve the perception of distance course through the optimization of its visual presentationΠ’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ приводятся практичСскиС Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΈ ΠΏΠΎ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΡŽ восприятия дистанционного курса посрСдством ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ Π΅Π³ΠΎ Π²ΠΈΠ·ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ прСдставлСни

    Anticorrosive properties of epoxy coatings, impregnated with manganese-containing pigments

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    Β© Research India Publications 2015. Most inhibiting pigments, imparting high anticonosive properties to the primer modern metal materials, contain extremely oxidated chromium, and as a consequence, are toxic. Search for low-toxic pigments comparable on the effectiveness of the protective effect with chioiniuin-containing pigments remains today an urgent task. As a film-forming material, it was used the epoxy oligomer E-40 being widely applicable in the paint industry epoxy, for which, polyethylene polyamine served as a hardener. Calcining calcium manganite, manganite-co-precipitated calcium silicate, and manganese blue were chosen as anticonosive pigments, the properties of anticonosi\*e coating on the basis of epoxy oligomer E-40 pigmented with manganese compounds were investigated. It has been found that inclusion of the synthesized pigment into composition of coatings enhances their ability to inhibit undei’film corrosion of steel. It has been proposed compounds of anticonosive primers on the effectiveness of protective action, surpassing industrial counterparts. The paper investigates influence of the content and nature of manganese anticonosive pigments on the protective properties of epoxy coatings. It has been shown that in the region of pigmentation below the critical, there is an increase of auticonosion efficiency of coatings. It has been evaluated the critical volume content of pigment, developed the formulations of primers, coatings on the basis of which the effectiveness of corrosion exceed the industry analogue

    Mass open online courses - features and prospects

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    The government of the Russian Federation adopted the state program "Development of Education", which pointed to the need to develop online courses. the article contains a brief history of MOOC, an online model of courses. The main place is given to issues related to the merits and demerits of online courses in comparison with traditional onesΠŸΡ€Π°Π²ΠΈΡ‚Π΅Π»ΡŒΡΡ‚Π²ΠΎΠΌ Российской Π€Π΅Π΄Π΅Ρ€Π°Ρ†ΠΈΠΈ принята государствСнная ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ° "Π Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ образования", Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΉ ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π»ΠΎΡΡŒ Π½Π° Π½Π΅ΠΎΠ±Ρ…ΠΎΠ΄ΠΈΠΌΠΎΡΡ‚ΡŒ развития ΠΎΠ½Π»Π°ΠΉΠ½ курсов. Π² ΡΡ‚Π°Ρ‚ΡŒΠ΅ ΠΈΠ·Π»ΠΎΠΆΠ΅Π½Π° краткая история MOOC, ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΎΠ½Π»Π°ΠΉΠ½ курсов. ОсновноС мСсто ΡƒΠ΄Π΅Π»Π΅Π½ΠΎ вопросам, связанным с достоинствами ΠΈ нСдостатками ΠΎΠ½Π»Π°ΠΉΠ½ курсов Π² сравнСнии с Ρ‚Ρ€Π°Π΄ΠΈΡ†ΠΈΠΎΠ½Π½Ρ‹ΠΌ

    Visualization in distance learning

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    ΠŸΡ€ΠΈΠ²ΠΎΠ΄ΡΡ‚ΡΡ практичСскиС Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°Ρ†ΠΈΠΈ ΠΏΠΎ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½ΠΈΡŽ восприятия дистанционного курса посрСдством ΠΎΠΏΡ‚ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ Π΅Π³ΠΎ Π²ΠΈΠ·ΡƒΠ°Π»ΡŒΠ½ΠΎΠ³ΠΎ прСдставлСнияThe article gives practical recommendations to improve the perception of distance course through the optimization of its visual presentatio

    Technique of complex slime water treatment of coal-mining branch

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    The possibility of complex slime water treatment at coal-mining and coal-treating plants producing marketable products: power-generating concentrate, coal-water fuel, magnetic fraction, industrial water is shown. A basic process flowsheet of slime water treatment presenting a united technological complex is suggested
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