Қазақ ұлттық қыздар педагогикалық университеті / Казахский национальный женский педагогический университет

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  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Magnetic and resonance properties of the Y0.5Sr0.5Cr0.5Mn0.5O3 polycrystal
    (IOP Publishing, 2021-11-01) ; ; ;
    Ya. G. Shiyan
    ;
    V G Plekhanov
    Abstract The magnetostatic and magnetic resonance properties of the Y0.5Sr0.5Cr0.5Mn0.5O3 polycrystalline system have been experimentally studied. The intracrystalline ferromagnetic interaction turned out to be prevalent while the intercrystalline interaction appears to have antiferromagnetic character. We found that two absorption lines are observed in the spectrum in the magnetic ordering region at T < 80 K. The high-field line corresponds to the interacting parts of polycrystal related to the disordered shells and the low-field peak is system of ferromagnetic particles.
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Effect of external factors on the swelling of hydrogels based on poly(ethylene glycol) maleate with some vinyl monomers
    (Pleiades Publishing, 2013-01-01)
    Meiram Zh. Burkeev
    ;
    А.К. Магзумова
    ;
    Е. М. Тажбаев
    ;
    Gulsym K. Burkeyeva
    ;
    Anna K. Kovaleva
    Effect of the pH of the medium, temperature, and nature of solvents and inorganic salt on the behavior of hydrogels based on copolymers of poly(ethylene glycol) maleate with acrylic and methacrylic acids and acrylamide was studied. It was shown experimentally that the susceptibility of the hydrogels to changes in the factors mentioned above, depending on the nature of a comonomer.
    Цитирования (OpenAlex) 14Цитирования (OpenCitations) 6
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Calorimetric and Thermodynamic Studies of Complex Ferrites in the Temperature Range of 298,15-673 K
    Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and chemistry letters. Oriental Journal of Chemistry is abstracted and indexed in almost all reputed National and International agencies.
    Цитирования (OpenAlex) 1
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Nanocatalytic systems based on poly(ethylene glycol maleate)-acrylamide copolymers
    (Pleiades Publishing, 2015-02-01)
    Meiram Zh. Burkeev
    ;
    Anna K. Kovaleva
    ;
    Е. М. Тажбаев
    ;
    Gulsym K. Burkeyeva
    ;
    С. Ж. Давренбеков
    The radical copolymerization of poly(ethylene glycol maleate) with acrylamide was performed for the first time to obtain 3D cross-linked polymers. The influence of temperature, pH of the medium, and organic solvents on the behavior of the synthesized copolymers was studied. The possibility of obtaining nickel nanoparticles in the bulk of the polymer gel for pyridine hydrogenation was demonstrated.
    Цитирования (OpenAlex) 13Цитирования (OpenCitations) 4
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Calorimetric and Thermodynamic Studies of Complex Ferrites
    By method of dynamic calorimetry, in the temperature range between 298,15 and 673 K, isobaric heat capacity of polycrystalline ferrites Bі2СаFe4O10, BіMgFe2O5.5, Bі2MgFe4O10 was experimentally studied. Mathematical processing of experimental data made it possible to derive polynomial equation of temperature dependence of ferrites heat capacity for respective temperature ranges, in dependencies C0p~f (T) of ferrite Bі2СаFe4O10 a jump was detected in heat capacity at 625K associated with phase transitions of type II. The values of the thermodynamic functions C0p(Т), H0(T) – Н0(298,15), C0(T), Fhh(Т) have been calculated. Standard values of thermodynamic functions were determined using the method of ion increments. The results obtained broaden thermodynamic data bank for complex inorganic crystalline compounds.
    Цитирования (OpenAlex) 1
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    SYNTHESIS AND X-RAY ANALYSIS OF COMPLEX FERRITE BILIFE2O5.
    The paper describes the synthesis and X-ray study of a complex structure of ferrite BiLiFe2O5. Ferrite with mixed complex oxide BiLiFe2O5 was synthesized by high temperature solid state reaction. The structure
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Synthesis and X-Ray Analysis of Complex Ferrites
    (Trans Tech Publications, 2017-07-01) ; ;
    Siddharth Saxena
    ;
    ;
    Ferrite with mixed complex oxides BiNaFe2O5, BiKFe2O5 was synthesized by high temperature solid state reaction. The structure of the ferrites, type of syngony, parameters of the unit cells, radiographic and pycnometric densities were determined by X-ray phase analysis for a first time: BiNaFe2O5 – а=5,577, с=13,86 Å, γ=120º, Vun.cell. = 373,9 Å3, Z=4, ρrad.= 7,5262 г/см3, ρpicn.=7,5271 г/см3, BiKFe2O5 –а=5,545, с=13,65 Å, γ=120º, Vun.cell.= 363,45Å3, Z=6, ρrad.= 8,0367, ρpicn.=8,0375 г/см3. A comparative analysis of the relationship between crystal lattice parameters with parameters of the crystal lattice of initial oxides and complex ferrites has been performed. Research dependence of the magnetic moment of the complex ferrite BiNaFe2O5 of the applied magnetic field at a constant temperature T = 6.1405 K showed a paramagnetic shift in the structure.
    Цитирования (OpenAlex) 3Цитирования (OpenCitations) 3
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    Тип записи:Публикация,
    Thermodynamic Properties of Complex Ferrite Bi Ca3 Fe5 O12
    (Oriental Scientific Publishing Company, 2017-12-25) ; ; ;
    A. T. Kezdikbaeva
    Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and chemistry letters. Oriental Journal of Chemistry is abstracted and indexed in almost all reputed National and International agencies.
    Цитирования (OpenAlex) 1
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Manganite Synthesis By Different Methods
    (Oriental Scientific Publishing Company, 2018-06-25) ;
    S. S. Saxena
    ;
    ; ;
    A. T. Kezdikbaeva
    Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and chemistry letters. Oriental Journal of Chemistry is abstracted and indexed in almost all reputed National and International agencies.
    Цитирования (OpenAlex) 2Цитирования (OpenCitations) 1
  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Synthesis and Magnetic Properties of Crystals Bi₂BaFe₄O₁ ₀
    The paper presents the results of an experimental study of the first synthesized compound in the system Bi2O3-BaO-Fe2O3.It was found that the compound has cubic symmetry, the lattice parameters was determined.Electron microscopy measurements reveal that, in general, elemental composition of different parts of the samples corresponds to Bi2BaFe4O10 formula.According to magnetic measurements, the compound has a magnetic order with the magnetic ordering temperature TC = 700 K.
    Цитирования (OpenAlex) 3Цитирования (OpenCitations) 3