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1.
Подробнее
3
К 11
Көшкінов, Н. А.
Графикалық әдістер мен процедуралар [Текст] / Н. А. Көшкінов // Информатика негіздері. - 2018. - Б. 29-30.
ББК 3
Рубрики: Техника.
Кл.слова (ненормированные):
VisuaIBasic -- АКТ -- Line -- BF -- Long -- радиус -- Command Button
Аннотация: Графикалық әдістер мен процедуралар
Держатели документа:
М.Өтемісов атындағы БҚМУ.
К 11
Көшкінов, Н. А.
Графикалық әдістер мен процедуралар [Текст] / Н. А. Көшкінов // Информатика негіздері. - 2018. - Б. 29-30.
Рубрики: Техника.
Кл.слова (ненормированные):
VisuaIBasic -- АКТ -- Line -- BF -- Long -- радиус -- Command Button
Аннотация: Графикалық әдістер мен процедуралар
Держатели документа:
М.Өтемісов атындағы БҚМУ.
2.
Подробнее
28.083
П 23
Петухов, В. А.
СТРУКТУРА СООБЩЕСТВ МЕЛКИХ МЛЕКОПИТАЮЩИХ И ИХ ЭКТОПАРАЗИТЫ ГОРОДА СУРГУТА [Текст] / В. А. Петухов, В. П. Стариков [и др.] // Экология урбанизированных территорий. - 2018. - №3. - С. 19-24.
ББК 28.083
Рубрики: Паразитология
Кл.слова (ненормированные):
урбанизированные территории -- садово-дачные участки -- пространственное распределение -- мелкие млекопитающие -- обилие -- иксодовые клещи -- вши -- туляремия
Аннотация: Показано, что мелкие млекопитающие отлавливались в течение 2010—2012 и 2015—2017 гг.; по меньшей мере 16 видов (n = 2905) мелких млекопитающих были зафиксированы и 1205 особей осмотрены на наличие эктопаразитов (иксодовых клещей и вшей) на незастроенных, садово-дачных и контрольных участках в г. Сургуте. Показано, что два наиболее распространенных вида на незастроенных и контрольных участках — обыкновенная бурозубка (Sorex araneus) и красная полевка (Myodes rutilus), в то время как на садово-дачных участках преобладали восточноевропейская полевка (Micro tus rossiaemeridionalis) и домовая мышь (Mus musculus); иксодовые клещи были зарегистрированы на 6 видах мелких млекопитающих, а вши на 7 видах; два вида иксодовых клещей (Ixodes persuicatus и I. apronophorus) и четыре вида вшей (Hoplopleura acanthopus, Н. edentula, Н. longula и Polyplax hannswrangeli).
Держатели документа:
ЗКГУ
Доп.точки доступа:
Стариков, В. П.
Вершинин, Е. А.
Морозкина, A. В.
Сарапульцева, Е. С.
Кравченко, B. Н.
П 23
Петухов, В. А.
СТРУКТУРА СООБЩЕСТВ МЕЛКИХ МЛЕКОПИТАЮЩИХ И ИХ ЭКТОПАРАЗИТЫ ГОРОДА СУРГУТА [Текст] / В. А. Петухов, В. П. Стариков [и др.] // Экология урбанизированных территорий. - 2018. - №3. - С. 19-24.
Рубрики: Паразитология
Кл.слова (ненормированные):
урбанизированные территории -- садово-дачные участки -- пространственное распределение -- мелкие млекопитающие -- обилие -- иксодовые клещи -- вши -- туляремия
Аннотация: Показано, что мелкие млекопитающие отлавливались в течение 2010—2012 и 2015—2017 гг.; по меньшей мере 16 видов (n = 2905) мелких млекопитающих были зафиксированы и 1205 особей осмотрены на наличие эктопаразитов (иксодовых клещей и вшей) на незастроенных, садово-дачных и контрольных участках в г. Сургуте. Показано, что два наиболее распространенных вида на незастроенных и контрольных участках — обыкновенная бурозубка (Sorex araneus) и красная полевка (Myodes rutilus), в то время как на садово-дачных участках преобладали восточноевропейская полевка (Micro tus rossiaemeridionalis) и домовая мышь (Mus musculus); иксодовые клещи были зарегистрированы на 6 видах мелких млекопитающих, а вши на 7 видах; два вида иксодовых клещей (Ixodes persuicatus и I. apronophorus) и четыре вида вшей (Hoplopleura acanthopus, Н. edentula, Н. longula и Polyplax hannswrangeli).
Держатели документа:
ЗКГУ
Доп.точки доступа:
Стариков, В. П.
Вершинин, Е. А.
Морозкина, A. В.
Сарапульцева, Е. С.
Кравченко, B. Н.
3.
Подробнее
81
A33
Alexeeva, M. V.
Problems of the continuity in the system of long-life education (agricultural schools and agricultural higher educational institution) [Текст] / M. V. Alexeeva // Высшее образование сегодня . - 2018. - №9. - Р. 64-65
ББК 81
Рубрики: Языкознание
Кл.слова (ненормированные):
преемственность -- непрерывное образование -- акцентирование -- потребности -- агропромышленный комплекс -- эффективные условия -- подготовка -- взаимодействие -- принцип -- инновационный
Аннотация: Рассмотрены проблемы преемственности изучения иностранного языка в системе непрерывного образования в комплексе «агрошкола – агровуз». Показаны пути решения этих проблем, открывающие возможность для подготовки высококвалифицированных специалистов в агропромышленной сфере. Подчеркнута необходимость создания благоприятных условий для взаимодействия между школой и вузом на основе иноязычного обучения. Обучение иностранному языку на началах преемственности способствует подготовке кадров в агропромышленной сфере, владеющих иностранным языком на уровне, позволяющем сотрудничать с представителями зарубежных стран по своему профилю
Держатели документа:
ЗКГУ
A33
Alexeeva, M. V.
Problems of the continuity in the system of long-life education (agricultural schools and agricultural higher educational institution) [Текст] / M. V. Alexeeva // Высшее образование сегодня . - 2018. - №9. - Р. 64-65
Рубрики: Языкознание
Кл.слова (ненормированные):
преемственность -- непрерывное образование -- акцентирование -- потребности -- агропромышленный комплекс -- эффективные условия -- подготовка -- взаимодействие -- принцип -- инновационный
Аннотация: Рассмотрены проблемы преемственности изучения иностранного языка в системе непрерывного образования в комплексе «агрошкола – агровуз». Показаны пути решения этих проблем, открывающие возможность для подготовки высококвалифицированных специалистов в агропромышленной сфере. Подчеркнута необходимость создания благоприятных условий для взаимодействия между школой и вузом на основе иноязычного обучения. Обучение иностранному языку на началах преемственности способствует подготовке кадров в агропромышленной сфере, владеющих иностранным языком на уровне, позволяющем сотрудничать с представителями зарубежных стран по своему профилю
Держатели документа:
ЗКГУ
4.
Подробнее
22.2
U93
Utenov, M. U
Determination of displacements in cross-sections of four-bar mechanism linksfrom distributed dynamic loads and their animation using MAPLE [Текст] / M.U Utenov // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - Р. 45-56
ББК 22.2
Рубрики: Механика
Кл.слова (ненормированные):
Механизмы -- подвижные стержневые системы -- перемещения -- распределенные динамические нагрузки
Аннотация: The links of high-speed mechanisms and manipulators are deformed under the action of inertiaforces and external loads. These deformations have significantly influence on the accuracy of execu-tion of the required law of motion by the operating point of the mechanism and the positioning ofthe manipulator grip. Accordingly, longitudinal and transverse displacements, angles of rotation ofcross-sections of links under the action of distributed dynamic and external loads are investigatedin this paper. The developed technique allows defining deformations of links of mechanisms andmanipulators and can be applied at their designing. To determine the transverse displacements,the angles of rotation of the cross-sections of the links – the basic differential equation of the elasticline of the beam, to determine the longitudinal displacements of the points of the links – Hooke’slaw and the boundary conditions of the computed scheme of the investigated linkages for elasticcomputation are used. The bending moment in the basic differential equation of the elastic line ofthe beam and the longitudinal force in Hooke’s law were determined by the theory developed bythe authors of the analytical definition of internal forces in the links of planar linkages with stat-ically determinate structures, taking into account the distributed dynamic loads from the massesof links, dead weight and from the acting external loads. According to the developed technique,programs are created in the MAPLE system and animations of the movement of mechanisms arereceived, with the construction on the links the diagrams of transverse, longitudinal displacementsand angles of rotation of the link cross-sections. The developed analytical technique for determin-ing deformations in the cross-sections of links is used to calculate the strength and stiffness ofelements of movable linkages.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Zhilkibayeva, S.K
Baygunchekov, Zh.Zh
U93
Utenov, M. U
Determination of displacements in cross-sections of four-bar mechanism linksfrom distributed dynamic loads and their animation using MAPLE [Текст] / M.U Utenov // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - Р. 45-56
Рубрики: Механика
Кл.слова (ненормированные):
Механизмы -- подвижные стержневые системы -- перемещения -- распределенные динамические нагрузки
Аннотация: The links of high-speed mechanisms and manipulators are deformed under the action of inertiaforces and external loads. These deformations have significantly influence on the accuracy of execu-tion of the required law of motion by the operating point of the mechanism and the positioning ofthe manipulator grip. Accordingly, longitudinal and transverse displacements, angles of rotation ofcross-sections of links under the action of distributed dynamic and external loads are investigatedin this paper. The developed technique allows defining deformations of links of mechanisms andmanipulators and can be applied at their designing. To determine the transverse displacements,the angles of rotation of the cross-sections of the links – the basic differential equation of the elasticline of the beam, to determine the longitudinal displacements of the points of the links – Hooke’slaw and the boundary conditions of the computed scheme of the investigated linkages for elasticcomputation are used. The bending moment in the basic differential equation of the elastic line ofthe beam and the longitudinal force in Hooke’s law were determined by the theory developed bythe authors of the analytical definition of internal forces in the links of planar linkages with stat-ically determinate structures, taking into account the distributed dynamic loads from the massesof links, dead weight and from the acting external loads. According to the developed technique,programs are created in the MAPLE system and animations of the movement of mechanisms arereceived, with the construction on the links the diagrams of transverse, longitudinal displacementsand angles of rotation of the link cross-sections. The developed analytical technique for determin-ing deformations in the cross-sections of links is used to calculate the strength and stiffness ofelements of movable linkages.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Zhilkibayeva, S.K
Baygunchekov, Zh.Zh
5.
Подробнее
65
N94
Nurgaliyeva, A.
Evaluating the effectiveness of using financial resources aimed at innovative industrialization. [Текст] / A. Nurgaliyeva, A. Zeinullina, G. Nurbayeva, B. Serekbayeva, G. Bolsynbekova // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №1. - P. 231-237
ББК 65
Рубрики: Economics
Кл.слова (ненормированные):
capital -- investment -- finance -- innovation -- financial resources -- industrialization -- financing -- lending -- modernization
Аннотация: In the new global reality , the most approprite model for long -term development of Kazakhstan is the industrial and innovative model.
Держатели документа:
Wku
Доп.точки доступа:
Zeinullina, A.
Nurbayeva, G.
Serekbayeva, B.
Bolsynbekova, G.
N94
Nurgaliyeva, A.
Evaluating the effectiveness of using financial resources aimed at innovative industrialization. [Текст] / A. Nurgaliyeva, A. Zeinullina, G. Nurbayeva, B. Serekbayeva, G. Bolsynbekova // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №1. - P. 231-237
Рубрики: Economics
Кл.слова (ненормированные):
capital -- investment -- finance -- innovation -- financial resources -- industrialization -- financing -- lending -- modernization
Аннотация: In the new global reality , the most approprite model for long -term development of Kazakhstan is the industrial and innovative model.
Держатели документа:
Wku
Доп.точки доступа:
Zeinullina, A.
Nurbayeva, G.
Serekbayeva, B.
Bolsynbekova, G.
6.
Подробнее
26.8
M97
Mustafayeva, Zh. S.
Fundamentals of water use in the catchment areas of the ILi river basin. [Текст] / Zh. S. Mustafayeva // Reports of the National Academy of Sciences of the Republic of Kazakhstan. - 2020. - №5. - P. 49-55
ББК 26.8
Рубрики: geography
Кл.слова (ненормированные):
river -- basin -- runoff -- discharge -- catchment -- economy -- use -- water availability -- water use -- population
Аннотация: Dased on the long-term information and analytical materials 'alkhash -Alakol Basin Inspectorate for Requlation of Use and Protection of Water Resources' of the Committee for Water Resources of the Ministry of griculture of the Republic of Kazakhstan, the environmental indicator of specific water availability , which availability higt water availability , ensuring sustainable development of economic sectors, but not ensuring the natural and environmental sustainability and safery of functioning of Lake Balkhash, as a geographic water body.
Держатели документа:
WKU
Доп.точки доступа:
Ryskulbekova, L.N.
M97
Mustafayeva, Zh. S.
Fundamentals of water use in the catchment areas of the ILi river basin. [Текст] / Zh. S. Mustafayeva // Reports of the National Academy of Sciences of the Republic of Kazakhstan. - 2020. - №5. - P. 49-55
Рубрики: geography
Кл.слова (ненормированные):
river -- basin -- runoff -- discharge -- catchment -- economy -- use -- water availability -- water use -- population
Аннотация: Dased on the long-term information and analytical materials 'alkhash -Alakol Basin Inspectorate for Requlation of Use and Protection of Water Resources' of the Committee for Water Resources of the Ministry of griculture of the Republic of Kazakhstan, the environmental indicator of specific water availability , which availability higt water availability , ensuring sustainable development of economic sectors, but not ensuring the natural and environmental sustainability and safery of functioning of Lake Balkhash, as a geographic water body.
Держатели документа:
WKU
Доп.точки доступа:
Ryskulbekova, L.N.
7.
Подробнее
32.973
J95
Jussupbelova, G. T.
Creation of automated jobs for ''Loans and deposits in the banking system'' in the Delphi environment. [Текст] / G. T. Jussupbelova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 61-67
ББК 32.973
Рубрики: information Technology
Кл.слова (ненормированные):
Borland Delphi -- OLE technologies -- institutional structures -- deposit insurance system
Аннотация: At present, work in all areas is computerized and automated. All data is stored in a database. It is very comfortable and provides stability. For example, in the early 1980 - early 1990, all documents were filled in manually. It was a long process. When stored in the archives, there were layers of paper. And they could disappear and wear out. And the database data recorded by the computer is stored for a long time and does not take up much space, and you can store a very large amount of data.
Держатели документа:
WKU
Доп.точки доступа:
Zhidebayeva, A.N.
Iztayev, Zh.D.
Shaimerdenova, G.S.
Tastanbekova, B.O.
J95
Jussupbelova, G. T.
Creation of automated jobs for ''Loans and deposits in the banking system'' in the Delphi environment. [Текст] / G. T. Jussupbelova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 61-67
Рубрики: information Technology
Кл.слова (ненормированные):
Borland Delphi -- OLE technologies -- institutional structures -- deposit insurance system
Аннотация: At present, work in all areas is computerized and automated. All data is stored in a database. It is very comfortable and provides stability. For example, in the early 1980 - early 1990, all documents were filled in manually. It was a long process. When stored in the archives, there were layers of paper. And they could disappear and wear out. And the database data recorded by the computer is stored for a long time and does not take up much space, and you can store a very large amount of data.
Держатели документа:
WKU
Доп.точки доступа:
Zhidebayeva, A.N.
Iztayev, Zh.D.
Shaimerdenova, G.S.
Tastanbekova, B.O.
8.
Подробнее
22.3
T15
Taimuratova, L. U.
Negative longitudinal magnetoresistance silikon on interline electron transitions. [Текст] / L. U. Taimuratova, O. D. Bigozha, A. Zh. Kazbekova, Z. K. Aimaganbetova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 37-41
ББК 22.3
Рубрики: physics
Кл.слова (ненормированные):
piezo resistance -- negative magnetoresistance -- uniaxial pressure -- is energetic -- multivalley model -- valley crossing
Аннотация: The article presents experimental results obtained by studying the magnetoresistance of n-type silicon with an electron concentration of. nе=3,1-1013см-3 in the temperature range of 77.4-300K.There is a negative longitudinal magnetoresistance due to the redistribution of electrons between thevalleys. Experimental results are compared with existing theories and a good agreement is obtained bothquantitatively and qualitatively. At H=350 kE, the energy gap between the lowest Landau subzones is 7 MeV.These experimental results obtained in n-type silicon clearly demonstrate the reliability of the mechanismof negative magnetoresistance caused, indeed, by the pumping of current carriers between the valleys of theconduction band, shifting along the energy scale in a quantizing magnetic field at different speeds. The isenergetic surface of the bottom of the silicon conduction band consists of six ellipsoids located on the mainaxes of the cube, which causes anisotropy of the effective mass and relaxation time. The latter determines thefeatures of galvanomagnetic effects. Especially magnetoresistance is the most sensitive to the anisotropy ofthe is energetic surface. The influence of the latter on magnetoresistance is most clearly revealed in the regionof strong magnetic fields, where magnetoresistance is saturated.
Держатели документа:
WKU
Доп.точки доступа:
Bigozha, O.D.
Kazbekova, A. Zh.
Aimaganbetova, Z.K.
T15
Taimuratova, L. U.
Negative longitudinal magnetoresistance silikon on interline electron transitions. [Текст] / L. U. Taimuratova, O. D. Bigozha, A. Zh. Kazbekova, Z. K. Aimaganbetova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 37-41
Рубрики: physics
Кл.слова (ненормированные):
piezo resistance -- negative magnetoresistance -- uniaxial pressure -- is energetic -- multivalley model -- valley crossing
Аннотация: The article presents experimental results obtained by studying the magnetoresistance of n-type silicon with an electron concentration of. nе=3,1-1013см-3 in the temperature range of 77.4-300K.There is a negative longitudinal magnetoresistance due to the redistribution of electrons between thevalleys. Experimental results are compared with existing theories and a good agreement is obtained bothquantitatively and qualitatively. At H=350 kE, the energy gap between the lowest Landau subzones is 7 MeV.These experimental results obtained in n-type silicon clearly demonstrate the reliability of the mechanismof negative magnetoresistance caused, indeed, by the pumping of current carriers between the valleys of theconduction band, shifting along the energy scale in a quantizing magnetic field at different speeds. The isenergetic surface of the bottom of the silicon conduction band consists of six ellipsoids located on the mainaxes of the cube, which causes anisotropy of the effective mass and relaxation time. The latter determines thefeatures of galvanomagnetic effects. Especially magnetoresistance is the most sensitive to the anisotropy ofthe is energetic surface. The influence of the latter on magnetoresistance is most clearly revealed in the regionof strong magnetic fields, where magnetoresistance is saturated.
Держатели документа:
WKU
Доп.точки доступа:
Bigozha, O.D.
Kazbekova, A. Zh.
Aimaganbetova, Z.K.
9.
Подробнее
24
M97
Mussina, А. S.
Development of the conditions for strong thallium amalgam. [Текст] / А. S. Mussina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 65-70
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
thallium amalgam -- chemical preparation -- storage -- decomposition -- sulfuric acid -- water -- wash liquid
Аннотация: It has been established that lNH2SO4 solution and distilled water can be used as a protective medium for a long-term storage (30-40 days) of thallium amalgam of eutectic composition (8.6 mas.%), without sliming of its surface and an insignificant change of its concentration. An inverse dependence between the decomposition reaction rate and the ratio of the solution volume per unit of the contact surface (V:S), which corresponds to the height of the liquid layer (h) above the amalgam, is observed. At h ~ 2.5 cm and higher, the reaction rate becomes stabilized. The value of metal loss during its storage for 10-15 days does not exceed 0.5-1.0 mas.% of the initial thallium content in the amalgam. It has been shown that the rate of dissolution of thallium from amalgam is rather low, and in sulfuric acid solution it is only slightly higher than that in water with all S:V ratios. A similar picture is observed upon thallium amalgam decomposition in the same media in an open vessel; the difference consists only in a higher K value (Table 4). Thus, with S:V = 1:2.5, in an open vessel K in lNH2SO4 makes up 10,5.1011 mol/cm2.sec, and in H2O – 7.3.1011 mol/cm2.sec, whereas in a closed vessel K in lNH2SO4 makes up 1,9.1011 mol/cm2.sec, and in H2O – 1.5.1011 mol/cm2.sec. For 40 days of thallium amalgam (8.54 mas.%) storage in 1NH2SO4 the loss of thallium has been 1.3 mas.%, and in the distilled water - 1 mas.%. The quantity of the dissolved metal increases in proportion to the experiment duration, which is characteristic for a zero-order reaction, and this dependence is observed for all S:V ratios from 1:1 to 1:7. Besides, a possibility to use some saturated hydrocarbons, wherein no sliming of thallium amalgam occurs, as a protective wash liquid has been shown.
Держатели документа:
WKU
Доп.точки доступа:
Baitasheva, G.U.
Myrzakhmetova, N.О.
Tagabergenova, Zh.A.
Gorbulicheva , E.P.
M97
Mussina, А. S.
Development of the conditions for strong thallium amalgam. [Текст] / А. S. Mussina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 65-70
Рубрики: chemistry
Кл.слова (ненормированные):
thallium amalgam -- chemical preparation -- storage -- decomposition -- sulfuric acid -- water -- wash liquid
Аннотация: It has been established that lNH2SO4 solution and distilled water can be used as a protective medium for a long-term storage (30-40 days) of thallium amalgam of eutectic composition (8.6 mas.%), without sliming of its surface and an insignificant change of its concentration. An inverse dependence between the decomposition reaction rate and the ratio of the solution volume per unit of the contact surface (V:S), which corresponds to the height of the liquid layer (h) above the amalgam, is observed. At h ~ 2.5 cm and higher, the reaction rate becomes stabilized. The value of metal loss during its storage for 10-15 days does not exceed 0.5-1.0 mas.% of the initial thallium content in the amalgam. It has been shown that the rate of dissolution of thallium from amalgam is rather low, and in sulfuric acid solution it is only slightly higher than that in water with all S:V ratios. A similar picture is observed upon thallium amalgam decomposition in the same media in an open vessel; the difference consists only in a higher K value (Table 4). Thus, with S:V = 1:2.5, in an open vessel K in lNH2SO4 makes up 10,5.1011 mol/cm2.sec, and in H2O – 7.3.1011 mol/cm2.sec, whereas in a closed vessel K in lNH2SO4 makes up 1,9.1011 mol/cm2.sec, and in H2O – 1.5.1011 mol/cm2.sec. For 40 days of thallium amalgam (8.54 mas.%) storage in 1NH2SO4 the loss of thallium has been 1.3 mas.%, and in the distilled water - 1 mas.%. The quantity of the dissolved metal increases in proportion to the experiment duration, which is characteristic for a zero-order reaction, and this dependence is observed for all S:V ratios from 1:1 to 1:7. Besides, a possibility to use some saturated hydrocarbons, wherein no sliming of thallium amalgam occurs, as a protective wash liquid has been shown.
Держатели документа:
WKU
Доп.точки доступа:
Baitasheva, G.U.
Myrzakhmetova, N.О.
Tagabergenova, Zh.A.
Gorbulicheva , E.P.
10.
Подробнее
35
V99
Vysotskaya, N. A.
Some features of electrodeposition of metals from electrolytes with surfactants. [Текст] / N. A. Vysotskaya, B.N. Kabylbekova, D. D. Asylbekova, R. S. Spabekova, E. G. Lukin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 99-103
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
anticorrosive properties -- electroplating -- surfactants -- thiourea derivatives
Аннотация: For a long time, the use of various surfactants in the composition of simple electrolytes by researchers to improve the quality of metal coatings with cadmium and zinc has been an urgent task.Surfactants contribute to the grinding of the coating structure, the elimination of their porosity and the appearance of anti-corrosion properties of coatings. For example, cadmium electroplated coatings require corrosion resistance, since they are operated in tropical climates, in underground tunnels. Zinc coatings are widely used in building structures and roofing, on electrified railways and high-voltage power lines, in the mining industry and water pipes, as well as for galvanizing the body material in modern all-terrain vehicles to pass in hard-to-reach places without being subjected to corrosion.The object of our research is the process of electrodeposition of cadmium and zinc from simple acidic electrolytes with surfactants, which are thiourea derivatives of dialkyl-phosphorous acids in the current density range of 0.5-3.5 A /dm2, at room temperature. To confirm the quality of the obtained electroplating, we used a JSM-6490LV scanning electron microscope with INSA Energu energy–dispersion microanalysis and HKL-Basicc structural analysis systems with a useful magnification of 300000.
Держатели документа:
WKU
Доп.точки доступа:
Kabylbekova, B.N.
Asylbekova, D.D.
Spabekova, R.S.
Lukin, E.G.
V99
Vysotskaya, N. A.
Some features of electrodeposition of metals from electrolytes with surfactants. [Текст] / N. A. Vysotskaya, B.N. Kabylbekova, D. D. Asylbekova, R. S. Spabekova, E. G. Lukin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 99-103
Рубрики: chemical Technology
Кл.слова (ненормированные):
anticorrosive properties -- electroplating -- surfactants -- thiourea derivatives
Аннотация: For a long time, the use of various surfactants in the composition of simple electrolytes by researchers to improve the quality of metal coatings with cadmium and zinc has been an urgent task.Surfactants contribute to the grinding of the coating structure, the elimination of their porosity and the appearance of anti-corrosion properties of coatings. For example, cadmium electroplated coatings require corrosion resistance, since they are operated in tropical climates, in underground tunnels. Zinc coatings are widely used in building structures and roofing, on electrified railways and high-voltage power lines, in the mining industry and water pipes, as well as for galvanizing the body material in modern all-terrain vehicles to pass in hard-to-reach places without being subjected to corrosion.The object of our research is the process of electrodeposition of cadmium and zinc from simple acidic electrolytes with surfactants, which are thiourea derivatives of dialkyl-phosphorous acids in the current density range of 0.5-3.5 A /dm2, at room temperature. To confirm the quality of the obtained electroplating, we used a JSM-6490LV scanning electron microscope with INSA Energu energy–dispersion microanalysis and HKL-Basicc structural analysis systems with a useful magnification of 300000.
Держатели документа:
WKU
Доп.точки доступа:
Kabylbekova, B.N.
Asylbekova, D.D.
Spabekova, R.S.
Lukin, E.G.
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