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22.1
Y39

A., Yegenova
    Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 103-113
ББК 22.1

Рубрики: Mathematica

Кл.слова (ненормированные):
Physical and chemical processes -- dissipative fluxes -- transport equations -- viscous liquids
Аннотация: The article provides a generalized presentation of the results of the authors’ research to identify typical situations in the construction of mathematical models of various physical processes that can lead to equations with solutions in the form of moving nonlinear waves.
Держатели документа:
WKU
Доп.точки доступа:
Kurakbayeva, S.
Kalbayeva , A.
Iztaev , Zh.

A., Yegenova Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6.- P.103-113

31.

A., Yegenova Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6.- P.103-113


22.1
Y39

A., Yegenova
    Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 103-113
ББК 22.1

Рубрики: Mathematica

Кл.слова (ненормированные):
Physical and chemical processes -- dissipative fluxes -- transport equations -- viscous liquids
Аннотация: The article provides a generalized presentation of the results of the authors’ research to identify typical situations in the construction of mathematical models of various physical processes that can lead to equations with solutions in the form of moving nonlinear waves.
Держатели документа:
WKU
Доп.точки доступа:
Kurakbayeva, S.
Kalbayeva , A.
Iztaev , Zh.

24
M96

Murzakassymova, N. C.
    Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.

Murzakassymova, N.C. Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.75-79

32.

Murzakassymova, N.C. Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.75-79


24
M96

Murzakassymova, N. C.
    Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.

28
K42

Khalmurzayeva, B. A.
    Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 80-88
ББК 28

Рубрики: Biology

Кл.слова (ненормированные):
antioxidants -- biologically active substances -- cultivation -- genus -- microalgae -- phyto-cultures -- Spirulina
Аннотация: The qualitative and quantitative compositions of the valuable biologically active substances, species and strains of microalgae are related the genus of CyanobacteriaSp.platensis and Sp.labgrinthifosmis that were isolated from local nature and grown in semi-production facilities were considered. In order to adapt for mass cultivation, algae were first grown in greenhouse conditions. The algae were cultivated within 12 days. The produc-tivity in the tubular cultivator with stirring of Sp.platensis was 3.8 g / l, protein (73.0%), and Sp.laberinthiformis was 2.6 g / l of protein (63.1%). Similar studies were carried out in the open-air conditions that showed an increase in the amount of illumination causes a significant restructuring of the entire photosynthetic apparatus of algae. The accumulation of Sp.labyrinthiformis 2.7 g / l a.d.c., protein 62.21%, and Sp.platensis 4.08 g / l, protein 75.3%, were within 10 days. The content of protein and carotenes sharply increases in comparison with the greenhouse conditions. It was found that the addition of Sp.platensis suspension, as a protein-vitamin supplement for the bulls’ feedstuff, stimulates physiological processes that improves the biochemical parameters of their blood, the digestibility coefficient of nutrients by 8-9%, positive mineral balance, increases live weight gain (17.4%) and slaughter yield of the bulls (3.6%). So, the suspension of Sp.platensis is recommended for use as a protein-vitamin supplement in livestock farms that will allow having a significant economic effect in livestock farming, in average 20-25% profits per yearly.
Держатели документа:
WKU
Доп.точки доступа:
Ismailkhodjaev, B. Sh.
Kuatbekova, K. P.
Alibekov, R. S.
Makhatova, A. I.
Meimanbaeva, S. S.

Khalmurzayeva, B. A. Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.80-88

33.

Khalmurzayeva, B. A. Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.80-88


28
K42

Khalmurzayeva, B. A.
    Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 80-88
ББК 28

Рубрики: Biology

Кл.слова (ненормированные):
antioxidants -- biologically active substances -- cultivation -- genus -- microalgae -- phyto-cultures -- Spirulina
Аннотация: The qualitative and quantitative compositions of the valuable biologically active substances, species and strains of microalgae are related the genus of CyanobacteriaSp.platensis and Sp.labgrinthifosmis that were isolated from local nature and grown in semi-production facilities were considered. In order to adapt for mass cultivation, algae were first grown in greenhouse conditions. The algae were cultivated within 12 days. The produc-tivity in the tubular cultivator with stirring of Sp.platensis was 3.8 g / l, protein (73.0%), and Sp.laberinthiformis was 2.6 g / l of protein (63.1%). Similar studies were carried out in the open-air conditions that showed an increase in the amount of illumination causes a significant restructuring of the entire photosynthetic apparatus of algae. The accumulation of Sp.labyrinthiformis 2.7 g / l a.d.c., protein 62.21%, and Sp.platensis 4.08 g / l, protein 75.3%, were within 10 days. The content of protein and carotenes sharply increases in comparison with the greenhouse conditions. It was found that the addition of Sp.platensis suspension, as a protein-vitamin supplement for the bulls’ feedstuff, stimulates physiological processes that improves the biochemical parameters of their blood, the digestibility coefficient of nutrients by 8-9%, positive mineral balance, increases live weight gain (17.4%) and slaughter yield of the bulls (3.6%). So, the suspension of Sp.platensis is recommended for use as a protein-vitamin supplement in livestock farms that will allow having a significant economic effect in livestock farming, in average 20-25% profits per yearly.
Держатели документа:
WKU
Доп.точки доступа:
Ismailkhodjaev, B. Sh.
Kuatbekova, K. P.
Alibekov, R. S.
Makhatova, A. I.
Meimanbaeva, S. S.

36
K85

Kruchinin, A. G.
    Baromembrane technologies as a prospective alternative to vacuum evaporation in the dry milk production. [Текст] / A. G. Kruchinin, E. E. Illarionova, A. V. Bigaeva, S. N. Turovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 133-138
ББК 36

Рубрики: Пищевые производства

Кл.слова (ненормированные):
membrane technologies -- baromembrane method -- milk powder -- quality -- cheese suitability -- eat resistance -- solubility
Аннотация: In the dairy industry, in recent years, baromembrane technologies (microfiltration, ultrafiltration, nanofiltration, reverse osmosis) have become increasingly widespread, which make it possible to obtain milk raw materials that are safe from a microbiological point of view and to standardize the protein mass fraction, concentration and fractionation of milk constituents. These filtration methods are definitely an alternative to traditional manufacturing processes. They are integrated into many production steps for a wide range of whole milk products, cottage cheese, cheese, etc.
Держатели документа:
WKU
Доп.точки доступа:
Illarionova, E. E.
Bigaeva, A. V.
Turovskaya, S. N.

Kruchinin, A. G. Baromembrane technologies as a prospective alternative to vacuum evaporation in the dry milk production. [Текст] / A. G. Kruchinin, E. E. Illarionova, A. V. Bigaeva, S. N. Turovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.133-138

34.

Kruchinin, A. G. Baromembrane technologies as a prospective alternative to vacuum evaporation in the dry milk production. [Текст] / A. G. Kruchinin, E. E. Illarionova, A. V. Bigaeva, S. N. Turovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1.- P.133-138


36
K85

Kruchinin, A. G.
    Baromembrane technologies as a prospective alternative to vacuum evaporation in the dry milk production. [Текст] / A. G. Kruchinin, E. E. Illarionova, A. V. Bigaeva, S. N. Turovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 133-138
ББК 36

Рубрики: Пищевые производства

Кл.слова (ненормированные):
membrane technologies -- baromembrane method -- milk powder -- quality -- cheese suitability -- eat resistance -- solubility
Аннотация: In the dairy industry, in recent years, baromembrane technologies (microfiltration, ultrafiltration, nanofiltration, reverse osmosis) have become increasingly widespread, which make it possible to obtain milk raw materials that are safe from a microbiological point of view and to standardize the protein mass fraction, concentration and fractionation of milk constituents. These filtration methods are definitely an alternative to traditional manufacturing processes. They are integrated into many production steps for a wide range of whole milk products, cottage cheese, cheese, etc.
Держатели документа:
WKU
Доп.точки доступа:
Illarionova, E. E.
Bigaeva, A. V.
Turovskaya, S. N.

42.2
D56


    Digression processes of natural lands of the semi-desert zone [Текст] / B. N. Nasiyev , D. K. Tulegenova , А. K. Bekkaliyev , N. Zh. Zhanatalapov // Доклады национальной академии наук Республики Казахстан. - 2021. - №4. - Р. 71-79
ББК 42.2

Рубрики: Кормопроизводство. Кормовые растения

Кл.слова (ненормированные):
пастбища -- выпас -- дигрессии -- растительный покров -- продуктивность -- шкала дигрессии
Аннотация: Лугопастбищные угодья, которые являются основной частью глобальной экосистемы занимают 37% земной площади Земли, вносят значительный вклад в продовольственную безопасность, обеспечивая большую часть энергии и белков, необходимых жвачным животным для производства мяса и молочных продуктов. Считается, что грамотное управления пастбищами и улучшения состояний деградированных пастбищ могут играть фундаментальную роль в смягчении последствий выбросов парниковых газов, особенно в том, что касается накопления и поглощения углерода. Задача анализа пастбищной дигрессии пастбищных экосистем полупустынной зоны, выявление основных закономерностей трансформации полупустынных экосистем в результате нерационального пастбищного использования, установление характера изменений в растительных сообществах при дигрессионных процессах, влияние отчуждения надземной массы доминантных видов пастбищных растений в процессе выпаса животных на их кормовую продуктивность, а также определение условий оптимального функционирования полупустынных экосистем с учетом их хозяйственного и природоохранного значения является важным направлением исследований первостепенной научно-технической значимости для устойчивого развития жизнеспособного сельского хозяйства Республики. Целью исследований является установление процессов дигрессии растительного покрова пастбищ путем проведения мониторинга в полупустынной зоне Западного Казахстана. Объекты исследования – пастбищные угодья Жангалинского района. Методика исследований растительности пастбищ предусматривает оценку современного состояния и динамику изменения урожайности по сезонам года. Для этого на мониторинговой сети на градиенте экологических рядов проведены учет урожайности и режимные наблюдения изменений видового состава, ценопопуляционной структуры пастбищных экосистем по сезонам года – весна, лето и осень, определение кормоемкости, описание природной и антропогенной трансформации пастбищ. На основании проведенных полевых обследований фи­тоценоза на ведущих типах пастбищ нами разработана шкала дигрессии пастбищных экосистем полупустынной зоны на примере Жангалинского района. В шкале отражены показатели ценности пастбищ, их видового соста­ва и продуктивности при различных уровнях дигрессии под влиянием антро­погенных факторов и учтены природные особенности исследуемого региона и меха­низм деградации, а также динамика растительного покрова под влиянием ан­тропогенных факторов. Шкала дигрессии пастбищ включает 5 стадий этого процесса, которые характеризуются следующими признаками: изменением растительности; флористическим и экобиоморфным составом; соотношением многолетних и однолетних видов; проективным покрытием; степенью использования пастбища и его продуктивностью. Данная шкала создана на основании детальной оценки состояния пастбищных экосистем зоны исследования и учтена при разработки методов повышения продуктивности, охраны и рационального их использования увеличение продуктивности фитоценоза при щадящем режиме использования пастбищ. Из полученных при этом данных видно, что пастбищная дигрессия проявляется на всех типах пастбищ, на всех элементах рельефа и почвенного покрова. Это выражается в обеднении видового состава растительных сообществ, лишением проективного покрытия и снижением продуктивности фитоценоза в целом и качества корма. В количественных, экономико-хозяйственных показателях эти процессы выглядят еще более разрушительными. В связи с этим в ходе исследований нами были исследованы пастбищные экосистемы с разной растительностью и на разных типах почв (светло-каштановые, среднесуглинистые, солонцы). На основании результатов научных исследований установлены 4 стадии пастбищной дигресии растительных сообществ на солонцах. 1-я стадия пастбищной дигрессии. Коренные растительные сообщества на средних и мелких солонцах обычно монодоминантны. В качестве ценозообразующих видов выступают Artemisia pauciflora, Artemisia lerchiana, Kochia prostrata, Camphorosma monspeliaca. 2-я стадия пастбищной дигрессии. В лерхополынных и чернополынных сообществах значительно возрастает обилие Роа bulbosa в связи с изреживанием Artemisia pauciflora, Artemisia lerchiana и Kochia prostrata. 3-я стадия пастбищной дигрессии. Роа bulbosa доминирует, полыни становятся субдоминантами. 4-я стадия пастбищной дигрессии. Господствует Роа bulbosa, в качестве субдоминанта может быть Ceratocarpus arenarius, обилие полыней незначительное.
Держатели документа:
ЗКУ
Доп.точки доступа:
Nasiyev , B.N.
Tulegenova , D.K.
Bekkaliyev , А.K.
Zhanatalapov , N.Zh.

Digression processes of natural lands of the semi-desert zone [Текст] / B. N. Nasiyev , D. K. Tulegenova , А. K. Bekkaliyev , N. Zh. Zhanatalapov // Доклады национальной академии наук Республики Казахстан. - 2021. - №4.- Р.71-79

35.

Digression processes of natural lands of the semi-desert zone [Текст] / B. N. Nasiyev , D. K. Tulegenova , А. K. Bekkaliyev , N. Zh. Zhanatalapov // Доклады национальной академии наук Республики Казахстан. - 2021. - №4.- Р.71-79


42.2
D56


    Digression processes of natural lands of the semi-desert zone [Текст] / B. N. Nasiyev , D. K. Tulegenova , А. K. Bekkaliyev , N. Zh. Zhanatalapov // Доклады национальной академии наук Республики Казахстан. - 2021. - №4. - Р. 71-79
ББК 42.2

Рубрики: Кормопроизводство. Кормовые растения

Кл.слова (ненормированные):
пастбища -- выпас -- дигрессии -- растительный покров -- продуктивность -- шкала дигрессии
Аннотация: Лугопастбищные угодья, которые являются основной частью глобальной экосистемы занимают 37% земной площади Земли, вносят значительный вклад в продовольственную безопасность, обеспечивая большую часть энергии и белков, необходимых жвачным животным для производства мяса и молочных продуктов. Считается, что грамотное управления пастбищами и улучшения состояний деградированных пастбищ могут играть фундаментальную роль в смягчении последствий выбросов парниковых газов, особенно в том, что касается накопления и поглощения углерода. Задача анализа пастбищной дигрессии пастбищных экосистем полупустынной зоны, выявление основных закономерностей трансформации полупустынных экосистем в результате нерационального пастбищного использования, установление характера изменений в растительных сообществах при дигрессионных процессах, влияние отчуждения надземной массы доминантных видов пастбищных растений в процессе выпаса животных на их кормовую продуктивность, а также определение условий оптимального функционирования полупустынных экосистем с учетом их хозяйственного и природоохранного значения является важным направлением исследований первостепенной научно-технической значимости для устойчивого развития жизнеспособного сельского хозяйства Республики. Целью исследований является установление процессов дигрессии растительного покрова пастбищ путем проведения мониторинга в полупустынной зоне Западного Казахстана. Объекты исследования – пастбищные угодья Жангалинского района. Методика исследований растительности пастбищ предусматривает оценку современного состояния и динамику изменения урожайности по сезонам года. Для этого на мониторинговой сети на градиенте экологических рядов проведены учет урожайности и режимные наблюдения изменений видового состава, ценопопуляционной структуры пастбищных экосистем по сезонам года – весна, лето и осень, определение кормоемкости, описание природной и антропогенной трансформации пастбищ. На основании проведенных полевых обследований фи­тоценоза на ведущих типах пастбищ нами разработана шкала дигрессии пастбищных экосистем полупустынной зоны на примере Жангалинского района. В шкале отражены показатели ценности пастбищ, их видового соста­ва и продуктивности при различных уровнях дигрессии под влиянием антро­погенных факторов и учтены природные особенности исследуемого региона и меха­низм деградации, а также динамика растительного покрова под влиянием ан­тропогенных факторов. Шкала дигрессии пастбищ включает 5 стадий этого процесса, которые характеризуются следующими признаками: изменением растительности; флористическим и экобиоморфным составом; соотношением многолетних и однолетних видов; проективным покрытием; степенью использования пастбища и его продуктивностью. Данная шкала создана на основании детальной оценки состояния пастбищных экосистем зоны исследования и учтена при разработки методов повышения продуктивности, охраны и рационального их использования увеличение продуктивности фитоценоза при щадящем режиме использования пастбищ. Из полученных при этом данных видно, что пастбищная дигрессия проявляется на всех типах пастбищ, на всех элементах рельефа и почвенного покрова. Это выражается в обеднении видового состава растительных сообществ, лишением проективного покрытия и снижением продуктивности фитоценоза в целом и качества корма. В количественных, экономико-хозяйственных показателях эти процессы выглядят еще более разрушительными. В связи с этим в ходе исследований нами были исследованы пастбищные экосистемы с разной растительностью и на разных типах почв (светло-каштановые, среднесуглинистые, солонцы). На основании результатов научных исследований установлены 4 стадии пастбищной дигресии растительных сообществ на солонцах. 1-я стадия пастбищной дигрессии. Коренные растительные сообщества на средних и мелких солонцах обычно монодоминантны. В качестве ценозообразующих видов выступают Artemisia pauciflora, Artemisia lerchiana, Kochia prostrata, Camphorosma monspeliaca. 2-я стадия пастбищной дигрессии. В лерхополынных и чернополынных сообществах значительно возрастает обилие Роа bulbosa в связи с изреживанием Artemisia pauciflora, Artemisia lerchiana и Kochia prostrata. 3-я стадия пастбищной дигрессии. Роа bulbosa доминирует, полыни становятся субдоминантами. 4-я стадия пастбищной дигрессии. Господствует Роа bulbosa, в качестве субдоминанта может быть Ceratocarpus arenarius, обилие полыней незначительное.
Держатели документа:
ЗКУ
Доп.точки доступа:
Nasiyev , B.N.
Tulegenova , D.K.
Bekkaliyev , А.K.
Zhanatalapov , N.Zh.

38.3
S70

Sokolova, Ya. А.
    The study of the properties and structure of cement binding composition on electrolyte acqueous solutions activated by mechanomagnetic method. [Текст] / Ya. А. Sokolova, M. V. Akulova, B. R. Isakulov, А. G. Sokolova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 86-91
ББК 38.3

Рубрики: Строительные материалы

Кл.слова (ненормированные):
Cement compositions, -- mechanomagnetic activation -- electrolyte aqueous solutions -- differential thermo gravimetric analysis -- compressive strength -- structure formation of binders -- sodium thiosulphate -- calcium chloride
Аннотация: In the present paper, the issues of studying the influence of complex activation of grouting fluid on the structure and properties of the hardened cement paste and concrete are considered. The problem is relevant for manufacturing of building materials. In the paper, there was used the method of applying in the concrete mix composition of the elementary chemical substances undergone special physical treatment by means of mechanomagnetic activation. For more profound study of the structure formation processes in the hardened cement paste, the method of differential thermo gravimetric analysis has been used. As the research results have shown, the concrete samples on the activated electrolyte solutions are characterized by improved strength. In addition, on the base of differential thermo gravimetric analysis, it was proven that in the studied samples of the hardened cement paste on the electrolyte solutions activated by the method of mechanomagnetic treatment, the less calcium hydroxide and the more hydrated calcium silicate with amorphous and fine crystalline is formed. The obtained results for cement composites could be applied when manufacturing effective binder for concretes and mortars in the production of building materials and structures.
Держатели документа:
WKU
Доп.точки доступа:
Akulova, M.V.
Isakulov, B.R.
Sokolova, А.G.
Kul’sharov, B.B.
Isakulov, А.B.

Sokolova, Ya.А. The study of the properties and structure of cement binding composition on electrolyte acqueous solutions activated by mechanomagnetic method. [Текст] / Ya. А. Sokolova, M. V. Akulova, B. R. Isakulov, А. G. Sokolova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2.- P.86-91

36.

Sokolova, Ya.А. The study of the properties and structure of cement binding composition on electrolyte acqueous solutions activated by mechanomagnetic method. [Текст] / Ya. А. Sokolova, M. V. Akulova, B. R. Isakulov, А. G. Sokolova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2.- P.86-91


38.3
S70

Sokolova, Ya. А.
    The study of the properties and structure of cement binding composition on electrolyte acqueous solutions activated by mechanomagnetic method. [Текст] / Ya. А. Sokolova, M. V. Akulova, B. R. Isakulov, А. G. Sokolova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 86-91
ББК 38.3

Рубрики: Строительные материалы

Кл.слова (ненормированные):
Cement compositions, -- mechanomagnetic activation -- electrolyte aqueous solutions -- differential thermo gravimetric analysis -- compressive strength -- structure formation of binders -- sodium thiosulphate -- calcium chloride
Аннотация: In the present paper, the issues of studying the influence of complex activation of grouting fluid on the structure and properties of the hardened cement paste and concrete are considered. The problem is relevant for manufacturing of building materials. In the paper, there was used the method of applying in the concrete mix composition of the elementary chemical substances undergone special physical treatment by means of mechanomagnetic activation. For more profound study of the structure formation processes in the hardened cement paste, the method of differential thermo gravimetric analysis has been used. As the research results have shown, the concrete samples on the activated electrolyte solutions are characterized by improved strength. In addition, on the base of differential thermo gravimetric analysis, it was proven that in the studied samples of the hardened cement paste on the electrolyte solutions activated by the method of mechanomagnetic treatment, the less calcium hydroxide and the more hydrated calcium silicate with amorphous and fine crystalline is formed. The obtained results for cement composites could be applied when manufacturing effective binder for concretes and mortars in the production of building materials and structures.
Держатели документа:
WKU
Доп.точки доступа:
Akulova, M.V.
Isakulov, B.R.
Sokolova, А.G.
Kul’sharov, B.B.
Isakulov, А.B.

33
R24

Rasulov, S. R.
    Hydrodynamic features of suspensions and emulsions flows. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 99-104
ББК 33

Рубрики: Горное дело

Кл.слова (ненормированные):
hydrodynamics -- differential equation -- suspensions -- emulsions -- dispersed phase -- solid spherical particle -- turbulent flow -- pulsating motion
Аннотация: This scientific article is devoted to the problems associated with the flow of suspensions and emulsions and some simplifications of the real picture of the flow of a polydisperse medium are made. It is also stipulated that differential equations characterizing the motion of suspensions and emulsions should take into account the fundamental discontinuity of the medium and the physicochemical processes of heat and mass transfer occurring in it. Taking into account all these factors, a general equation for multiphase systems is proposed with certain simplifications that do not change.
Держатели документа:
WKU
Доп.точки доступа:
Mustafayeva, G.R.

Rasulov, S.R. Hydrodynamic features of suspensions and emulsions flows. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2.- P.99-104

37.

Rasulov, S.R. Hydrodynamic features of suspensions and emulsions flows. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2.- P.99-104


33
R24

Rasulov, S. R.
    Hydrodynamic features of suspensions and emulsions flows. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 99-104
ББК 33

Рубрики: Горное дело

Кл.слова (ненормированные):
hydrodynamics -- differential equation -- suspensions -- emulsions -- dispersed phase -- solid spherical particle -- turbulent flow -- pulsating motion
Аннотация: This scientific article is devoted to the problems associated with the flow of suspensions and emulsions and some simplifications of the real picture of the flow of a polydisperse medium are made. It is also stipulated that differential equations characterizing the motion of suspensions and emulsions should take into account the fundamental discontinuity of the medium and the physicochemical processes of heat and mass transfer occurring in it. Taking into account all these factors, a general equation for multiphase systems is proposed with certain simplifications that do not change.
Держатели документа:
WKU
Доп.точки доступа:
Mustafayeva, G.R.

35
J21

Jalmakhanbetova, R.I.
    Calculate the standard enthalpies of combustion , formation and melting of the complex roseofungin with a-, B- and y- cyclodextrin. [Текст] / R.I. Jalmakhanbetova, Ye. M. Suleimen, B. K. Kasenov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 44-47
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
roseofungin -- cyclodextrin -- standard enthalpy of combustion -- standard enthalpy of formation -- enthalpy of melting of a complex
Аннотация: One of the most important quantities in chemical thermodynamics and thermochemistry is the enthalpy of combustion. Of the currently existing methods for calculating the heat of combustion of natural and synthetic organic compounds, the most acceptable and correct in our case was the Karash method. In this study, the standard enthalpy of combustion, the standard enthalpy of formation, and the melting enthalpy of the antibiotic roseofungin and its cyclodextrin derivatives were calculated. As a result of the study, the thermodynamic constants of the standard enthalpies of combustion, standard enthalpies of formation, and the enthalpies of melting of the above compounds were calculated, which are of interest for physicochemical modeling of processes with their participation, serve as initial information arrays for loading into fundamental thermodynamic data banks and reference books, and is also important for standardization and certification of these complexes. It should be noted that the presence of a large number of hydroxyl groups in the structures of the studied complexes allows them to be attributed to polar compounds.
Держатели документа:
WKU
Доп.точки доступа:
Suleimen, Ye.M.
Kasenov, B.K.

Jalmakhanbetova, R.I. Calculate the standard enthalpies of combustion , formation and melting of the complex roseofungin with a-, B- and y- cyclodextrin. [Текст] / R.I. Jalmakhanbetova, Ye. M. Suleimen, B. K. Kasenov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.44-47

38.

Jalmakhanbetova, R.I. Calculate the standard enthalpies of combustion , formation and melting of the complex roseofungin with a-, B- and y- cyclodextrin. [Текст] / R.I. Jalmakhanbetova, Ye. M. Suleimen, B. K. Kasenov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.44-47


35
J21

Jalmakhanbetova, R.I.
    Calculate the standard enthalpies of combustion , formation and melting of the complex roseofungin with a-, B- and y- cyclodextrin. [Текст] / R.I. Jalmakhanbetova, Ye. M. Suleimen, B. K. Kasenov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 44-47
ББК 35

Рубрики: chemical Technology

Кл.слова (ненормированные):
roseofungin -- cyclodextrin -- standard enthalpy of combustion -- standard enthalpy of formation -- enthalpy of melting of a complex
Аннотация: One of the most important quantities in chemical thermodynamics and thermochemistry is the enthalpy of combustion. Of the currently existing methods for calculating the heat of combustion of natural and synthetic organic compounds, the most acceptable and correct in our case was the Karash method. In this study, the standard enthalpy of combustion, the standard enthalpy of formation, and the melting enthalpy of the antibiotic roseofungin and its cyclodextrin derivatives were calculated. As a result of the study, the thermodynamic constants of the standard enthalpies of combustion, standard enthalpies of formation, and the enthalpies of melting of the above compounds were calculated, which are of interest for physicochemical modeling of processes with their participation, serve as initial information arrays for loading into fundamental thermodynamic data banks and reference books, and is also important for standardization and certification of these complexes. It should be noted that the presence of a large number of hydroxyl groups in the structures of the studied complexes allows them to be attributed to polar compounds.
Держатели документа:
WKU
Доп.точки доступа:
Suleimen, Ye.M.
Kasenov, B.K.

28
N16

Naguman, P.N.
    Phytoncides in the composition of common bird cherry. [Текст] / P.N. Naguman // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 70-75
ББК 28

Рубрики: Biology

Кл.слова (ненормированные):
Bird cherry -- phytoncides -- plant -- bacteria -- protozoa -- useful properties
Аннотация: The presence of tannins and essential oil in the fruit has an anti-inflammatory effect, which is used to treat inflammatory processes in the gastrointestinal tract and dysentery. The infusion of cherry fruits has a destructive effect on microorganisms. Preparations of the fruits of the common cherry have an antiseptic effect. They are used in dental practice in the treatment of inflammatory processes of the oral mucosa, paradontosis, toothache and hypovitaminosis.
Держатели документа:
WKU
Доп.точки доступа:
Zhorabek, A.A.
Amanzholova, A.S.
Kulakov, I.V.
Rakhimbaeva, A.N.

Naguman, P.N. Phytoncides in the composition of common bird cherry. [Текст] / P.N. Naguman // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.70-75

39.

Naguman, P.N. Phytoncides in the composition of common bird cherry. [Текст] / P.N. Naguman // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.70-75


28
N16

Naguman, P.N.
    Phytoncides in the composition of common bird cherry. [Текст] / P.N. Naguman // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 70-75
ББК 28

Рубрики: Biology

Кл.слова (ненормированные):
Bird cherry -- phytoncides -- plant -- bacteria -- protozoa -- useful properties
Аннотация: The presence of tannins and essential oil in the fruit has an anti-inflammatory effect, which is used to treat inflammatory processes in the gastrointestinal tract and dysentery. The infusion of cherry fruits has a destructive effect on microorganisms. Preparations of the fruits of the common cherry have an antiseptic effect. They are used in dental practice in the treatment of inflammatory processes of the oral mucosa, paradontosis, toothache and hypovitaminosis.
Держатели документа:
WKU
Доп.точки доступа:
Zhorabek, A.A.
Amanzholova, A.S.
Kulakov, I.V.
Rakhimbaeva, A.N.

24
N94

Nurdillayeva, R. N.
    Dissolution of stanless steel in sodium chloride solution at polarization by non-stationary current. [Текст] / R. N. Nurdillayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 75-81
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
stainless steel -- titanium electrode -- alternating current -- iron (II) ions -- chromium (III)ions -- current density -- and current efficiency
Аннотация: Stainless steel is in great demand due to its mechanical strength, heat resistance, and resistance to corrosive environments. This article presents the result of a study of the electrochemical dissolution behavior of a stainless steel electrode (12X18H10T) at polarization by 50 Hz alternating current in a neutral medium (NaCl). Preliminary experiments have shown that the main processes do not take place when two stainless steel electrodes are polarized with an alternating current. It was observed that by the polarization of the “stainless steel – titanium” pair electrodes with alternating current, the alloy is intensively dissolved with the formation of iron (II) and chromium (III) ions. This is due to the "valve" properties of the oxide layer formed on the surface of the titanium electrode. A change in the value of the current density of the titanium and steel electrodes significantly affects the process of electrochemical dissolution of the alloy. At high current densities, the dissolution rate of the alloy decreases due to the deterioration of the current correcting properties of titanium. With an increase in the electrolyte concentration, the current efficiency is reduced as salt passivation occurs. A maximum value of the current efficiency of dissolution of stainless steel was observed at a current frequency of 50 Hz. High frequencies of the alternating current do not provide an adjustable duration of the anodic half-cycle for the oxidation reaction due to the frequent change of half-cycles of the alternating current. It was observed that increasing the temperature of the electrolyte reduces the current efficiency of the electrochemical dissolution of stainless steel electrodes. The effects of main electrochemical parameters on the electrolysis process have been investigated, and the optimal conditions of the alloy dissolution were established (іТі = 60 kA/m2, іSS = 800 A/m2, [NaCl] = 2.0 M, t = 30, ν = 50 Hz.).
Держатели документа:
WKU
Доп.точки доступа:
Sauirbay, Zh.G.
Bayeshov, A.B.

Nurdillayeva, R.N. Dissolution of stanless steel in sodium chloride solution at polarization by non-stationary current. [Текст] / R. N. Nurdillayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.75-81

40.

Nurdillayeva, R.N. Dissolution of stanless steel in sodium chloride solution at polarization by non-stationary current. [Текст] / R. N. Nurdillayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3.- P.75-81


24
N94

Nurdillayeva, R. N.
    Dissolution of stanless steel in sodium chloride solution at polarization by non-stationary current. [Текст] / R. N. Nurdillayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 75-81
ББК 24

Рубрики: chemistry

Кл.слова (ненормированные):
stainless steel -- titanium electrode -- alternating current -- iron (II) ions -- chromium (III)ions -- current density -- and current efficiency
Аннотация: Stainless steel is in great demand due to its mechanical strength, heat resistance, and resistance to corrosive environments. This article presents the result of a study of the electrochemical dissolution behavior of a stainless steel electrode (12X18H10T) at polarization by 50 Hz alternating current in a neutral medium (NaCl). Preliminary experiments have shown that the main processes do not take place when two stainless steel electrodes are polarized with an alternating current. It was observed that by the polarization of the “stainless steel – titanium” pair electrodes with alternating current, the alloy is intensively dissolved with the formation of iron (II) and chromium (III) ions. This is due to the "valve" properties of the oxide layer formed on the surface of the titanium electrode. A change in the value of the current density of the titanium and steel electrodes significantly affects the process of electrochemical dissolution of the alloy. At high current densities, the dissolution rate of the alloy decreases due to the deterioration of the current correcting properties of titanium. With an increase in the electrolyte concentration, the current efficiency is reduced as salt passivation occurs. A maximum value of the current efficiency of dissolution of stainless steel was observed at a current frequency of 50 Hz. High frequencies of the alternating current do not provide an adjustable duration of the anodic half-cycle for the oxidation reaction due to the frequent change of half-cycles of the alternating current. It was observed that increasing the temperature of the electrolyte reduces the current efficiency of the electrochemical dissolution of stainless steel electrodes. The effects of main electrochemical parameters on the electrolysis process have been investigated, and the optimal conditions of the alloy dissolution were established (іТі = 60 kA/m2, іSS = 800 A/m2, [NaCl] = 2.0 M, t = 30, ν = 50 Hz.).
Держатели документа:
WKU
Доп.точки доступа:
Sauirbay, Zh.G.
Bayeshov, A.B.

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