Multi-criteria problems for chemical engineering systems and algorithms for their solution based on fuzzy mathematical methods
Автор(ы): Оразбаев Б. Б.*Оразбаева К. Н.*Курмангазиева Л. Т.*Махатова В. Е.*
Объем документа: С. 984-998
МРНТИ: 28.19.15*
Ключевые слова: многокритериальные задачи оптимизации*принципы оптимальности*задача нечеткого математического программирования*производство бензола*
Реферат: Mathematical equations for the multi-criteria task of the optimization of chemical engineering systems, for example for the optimization of working regimes for industrial installations for benzene production, have been formulated and developed, and based on fuzzy mathematical methods, algorithms for their solution have been developed. Since the chemical engineering system, which is being researched, is characterised by multiple criteria and often functions in conditions of uncertainty, the presenting problem is formulated in the form of multicriteria equations for fuzzy mathematical programming. New mathematical formulations for the problems being solved in a fuzzy environment and heuristic algorithms for their solution have been developed by the modification of various optimization principles based on fuzzy mathematical methods.
Численное исследование зависимости удлинения стержня от температуры окружающей среды Тос0 при наличии температуры, меняющейся линейным законом
Автор(ы): Мырзашева А. Н.*Шаждекеева Н. К.*
Объем документа: С. 18-21
МРНТИ: 30.19.33*
Ключевые слова: математическая модель*температура вдоль стержня*линейный закон температур*теплоизоляция*теплообмен*
Реферат: Данная статья посвящена актуальной на сегодняшний день научной проблеме создания математической модели установившегося распределения поля температур вдоль стержня ограниченной длины с постоянным поперечным сечением при наличии меняющихся по координате по линейным законам температуры, частичной теплоизоляции, теплообмена и осевой растягивающей силы с учетом фактической зависимости коэффициента теплового расширения от температуры. Удлинение длины стержня варьировалось разными значениями температуры окружающей среды.
Психологические проблемы межличностных отношений в семье подростка с родителями
Реферат: В данной статье рассматриваются проблемы межличностных отношений подростка с родителями в семье и раскрыты психологические факторы конфликтов во взаимодействии родителей и подростков, а также проведен анализ влияния стилей семейного воспитания на взаимоотношения родителей и детей подросткового возраста.
Repressions of 1937-1938 in Kazakhstan and their Conseguences
Автор(ы): Танатарова Ж. Т.*
Объем документа: С. 100-106
МРНТИ: 03.20*
Ключевые слова: история Казахстана*массовый террор*террор социалистической системы*репрессия*движения интеллигенции*Алаш*
Реферат: Manifestations of the current state in the Soviet period, the command-administrative system of its many facets should be more thoroughly investigated and submitted for public discussion. In the 20-30s of the twentieth century, our country, has dropped a big experience, half of the nation was wiped out, people lost their best sons, who were proud of them.
Ethnic Pedagogy as an integrative, Developing Branch of Pedagogy
Автор(ы): Кожахметова К. Ж.*Ортаев Б.*Калиева С.*Уталиева Р. Б.*Жунисова Г.*
Реферат: The article presents the author\'s concept of the Kazakh ethno-pedagogy, developed on the basis of many years research. Devoted to disclosing theoretical and methodological foundations of ethno-pedagogy and Kazakh ethno-pedagogy, substantiation of its scientific status and place in the system of the human sciences. In the article, ethno-pedagogy is seen as an integrative branch of pedagogy, which was formed in the womb of pedagogy, at the junction of ethnic psychology, ethnophilosophy, ethnology, and ethnoculturology, which has its object and subject of research and conceptual and terminological apparatus. The introductory part of the article provides a brief analysis of the historical-pedagogical and scientific-theoretical assumptions of ethno-pedagogical ideas in Kazakhstan. The final part of the article presents ethno-pedagogical development tendencies, prospects of research, and ethno-pedagogy as a science and academic discipline.
Modification of Titanium Oxide Films by Ferric Ions in Hydrothermal Conditions and their Photo-Electrochemical Properties
Реферат: Anodic titanium oxide films were doped using ferrum ions in hydrothermal conditions. Doping is accompanied by a full change in the structure and morphology of the surface of titanium oxide while anatase is established radiographically. Deep redshift in optical spectrum of titanium oxide takes place. This is accompanied by anodic photo-current sharply increasing 2.5 times under visible lighting with simultaneous decrease of current characteristics under ultraviolet lighting. This is explained by the synergistic effect of Fe-Ti compound formed on the surface of the anodic oxide. Firstly, deep acceptor levels of ferrum in titanium oxide energy band gap are created while dopant conductivity becomes prevalent and titanium oxide\'s own conductivity partially leveled. Secondly, its proper layer of ferrum oxide is formed.
Synthesis and Research of the Nickel Catalysts of Liquid-Phase Hydrogenation of Benzene Promoted by Ferroalloys
Автор(ы): Turtabaev S. K.*Kedelbaev B. Sh.*Shalabaeva G. S.*Sarbaeva K. T.*
Реферат: This work develops the technique and technology of modification by ferroalloys of floatable nickel catalysts of hydrogenation of benzene. It in detail studies the influence of the nature of metal of the catalyst, the modifying additives, the size of particles, technological parameters. They worked up reliable data on phase, granulometric and chemical structures, porous structure explaining activity, selectivity and stability of catalysts. The synthesized nickel catalysts are tested in the course of hydrogenation of benzene to cyclohexane in the liquid phase.
Complex Processing and Wastes Generated in Chrysotile Asbestos Production
Автор(ы): Baigengenov O. S.*Kozlov V. A.*Luganov V. A.*Mishra B.*Shayahmetova R. A.*Aimbetova I. O.*
Реферат: A new recycling technology has been studied in this work to produce magnesium chloride from wastes generated in chrysotile asbestos production. The steps include enrichment of raw material by sizing, leaching of magnesium with hydrochloric acid, purification of solution from impurities of iron and nonferrous metals, and the production of magnesium chloride solutions. Thermodynamic analysis shows the possibility of dissolution of magnesium compounds in the waste by hydrochloric acid. Magnesium chloride solution is subjected to hydrolytic purification from iron and nickel. Enrichment has been carried out with material particle size of 0.25 mm and liquid to solid ratio of 4:1 and leaching with 25% concentrated hydrochloric acid has been accomplished with a stoichiometric flow rate. Hydrolytic treatment was carried out at a pH 7.5-8.0. pH adjustment was carried out by magnesium oxide. Extraction of 92% of magnesium from serpentinite was achieved.
Prevalence of birth defects in an Arctic Russian setting from 1973 to 2011: a register-based stud
Автор(ы): Postoev V. A.*Evert Nieboer*Grjibovski A. M.*Odland Jon*
Объем документа:
МРНТИ: 76.03.53*
Ключевые слова: врожденные дефекты*детская смертность Мурманской округи*прогрессивный рост врожденных дефектов*
Реферат: Birth defects (BD) constitute an important public health issue as they are the main cause of infant death. Their prevalence in Europe for 2008-2012 was 25.6 per 1000 newborns. To date, there are no population-based studies for the Russian Federation. The aim of the present study is to estimate the prevalence of BD, its forms, and changes over time in the Russian Arctic city of Monchegorsk (Murmansk County) for the period 1973-2011. The observed perinatal prevalence of BD in Monchegorsk increased two-fold during the 38-year study period. Further investigations to identify the underlying bases for the observed progressive growth in BD are recommended.
Biological and Ecological Characteristics of Fungi Affecting Seeds of Grain Crops
Автор(ы): Abdrassulova Zh. T.*Kuzhantaeva Zh. Zh.*Newsome A. S.*Salybekova N. N.*Turmetov G. Zh.*
Реферат: The article deals with materials of scientific research on morphological and molecular and genetic identification of fungi affecting the seeds of grain crops. The focusis on the fungi growing in the grain stored. The seeds of grain crops (Triticum aestivum L., Avena sativa L., Hordeum vulgare L., Zea mays L., Oryza sativa L.) were sampled from granaries of five districts (Talgar, Ili, Karasai, Panfilov and Zhambyl districts) of AlmatyRegion. The disease agents of fungus etiology of genera of Ustilago, Clodosporium, Verticillium, Diplodia, Macrosporium, Alternaria, Helminthosporium, Fusarium, Aspergillus, Penicillium, Rhizopus, Mucor were identified, whichaffect safety, quality and safety of grain.
