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Now showing items 5443-5462 of 30928

    • OBJECTIVES OF FINANCIAL CONTROL IN THE REPUBLIC OF KAZAKHSTAN AT THE PRESENT STAGE 

      Оспанова, А.С.; Аканбаева, З.С.; Иргебаева, А.А. (L.N.Gumilyov Eurasian National University, 2015)
      2024-01-04

    • OBSERVATION OF NATIONAL MARKERS STUDY IN KAZAKH LINGUISTICS 

      Karibai, K.S.; Zhaqypov, Zh.A.; Mukhtarkhanova, A.M. (L.N.Gumilyov Eurasian National University, 2018-03-29)
      2024-05-21

    • Observation of nucleon transfer and deuteron breakup on d+13C system 

      Janseitova, D. M.; Alimova, D.; Valiolda, D.S.; Kazhykenov, Sh.; Mauyey, B.; Kemper, K. W.; Hamada, Sh. (Revista Mexicana de Fısica, 2025)
      The advanced computational methods continuum-discretized coupled-channel (CDCC) and coupled-reaction channel (CRC) approaches were used to analyze several sets of experimental data, including the angular distributions of 13C(d,d)13C at deuteron energy, Ed = 14:5 MeV, 13C(d,p)14C neutron stripping reaction obtained at Ed = 15.3 MeV, and data sets for 13C(d,t)12C neutron pickup ...
      2026-03-30

    • Observation of the K+→π+νν¯ decay and measurement of its branching ratio 

      The NA62 collaboration (Journal of High Energy Physics, 2025)
      A measurement of the K+→π+νν¯ decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, after modifications to the beamline and detectors, at a higher instantaneous beam intensity with respect to the 2016–2018 data taking. Combining NA62 data collected in 2016–2022, a measurement of BK+→π+νν¯=13.0−3.0+3.3×10−11 ...
      2026-03-30

    • Observational analysis of late-time acceleration in f(Q,Lm) gravity 

      Myrzakulov, Kairat; Koussour, M.; Donmez, O.; Cilli, A.; Gudekli, E.; Rayimbaev, J. (Journal of High Energy Astrophysics, 2024)
      In this study, we explored late-time cosmology within an extended class of theories based on f(Q,Lm) gravity. This theory generalizes f(Q) gravity by incorporating a non-minimal coupling between the non-metricity Q and the matter Lagrangian Lm, analogous to the f(Q,T) theory. The coupling between Q and Lm leads to the non-conservation of the matter energy-momentum tensor. We first ...
      2026-03-30

    • Observational constraints and dynamical analysis of Kaniadakis horizon-entropy cosmology 

      Hernandez-Almada, A.; Leon, Genly; Magana, Juan; Garcıa-Aspeitia, Miguel A.; Motta, V.; Saridakis, Emmanuel N.; Yesmakhanova, Kuralay; Millano, Alfredo D. (MNRAS, 2022)
      2025-01-23

    • Observational constraints and dynamical analysis of Kaniadakis horizon-entropy cosmology 

      Hernandez-Almada, A.; Leon, Genly; Magana, Juan; Garc´ıa-Aspeitia, Miguel A.; Motta, V.; Saridakis, Emmanuel N.; Yesmakhanova, Kuralay; Millano, Alfredo D. (MNRAS, 2022)
      We study the scenario of Kaniadakis horizon-entropy cosmology, which arises from the application of the gravitythermodynamics conjecture using the Kaniadakis modified entropy. The resulting modified Friedmann equations contain extra terms that constitute an effective dark energy sector. We use data from cosmic chronometers, Type Ia supernova, H II galaxies, strong lensing ...
      2024-10-01

    • Observational constraints on a generalized equation of state model 

      Koussour, M.; Bekov, S.; Syzdykova, A.; Muminov, S.; Ibragimov, I.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
      We investigate the cosmological implications of a generalized total equation of state (EoS) model by constraining its parameters using observational datasets to effectively characterize the universe's expansion history and its dynamic properties. We introduce three parameters: , , and to capture the EoS behavior across different evolutionary phases. Our analysis indicates that ...
      2026-03-03

    • Observational constraints on a logarithmic scalar field dark energy model and black hole mass evolution in the Universe 

      Wang, Dan; Koussour, M.; Malik, Adnan; Myrzakulov, N.; Mustafa, G. (The European Physical Journal C, 2023)
      2025-01-24

    • Observational constraints on a logarithmic scalar field dark energy model and black hole mass evolution in the Universe 

      Wang, Dan; Koussour, M.; Malik, Adnan; Myrzakulov, N.; Mustafa, G. (Eurasian Physical Technical Journal C, 2023)
      We propose a logarithmic parametrization form of energy density for the scalar field dark energy in the framework of the standard theory of gravity, which supports the necessary transition from the decelerated to the accelerated behavior of the Universe. The model under consideration is constrained by available observational data, including cosmic chronometers data-sets (CC), ...
      2024-12-11

    • Observational constraints on a logarithmic scalar field dark energy model and black hole mass evolution in the Universe 

      Wang, Dan; Koussour, M.; Malik, Adnan; Myrzakulov, N.; Mustafa, G. (Eurasian Physical Technical Journal C, 2023)
      2025-01-23

    • Observational Constraints on F(T , TG) Gravity with Hubble’s Parametrization 

      Shekh, Salim Harun; Myrzakulov, Nurgissa; Pradhan, Anirudh; Mussatayeva, Assem (Symmetry, 2023)
      Any new gravitational theories can be built with the help of a gauge theory with local Poincare symmetry. This local Poincare symmetry can set up a space-time with torsion. In the present study, the authors working on the parametrization approach towards Hubble’s parameter in the frame of modified teleparallel Gauss-Bonnet gravity which is established on the torsion invariant T ...
      2024-09-20

    • Observational Constraints on F(T , TG) Gravity with Hubble’s Parametrization 

      Shekh, Salim Harun; Myrzakulov, Nurgissa; Pradhan, Anirudh; Mussatayeva, Assem (Symmetry, 2023)
      2025-01-27

    • Observational Constraints on F(T , TG) Gravity with Hubble’s Parametrization 

      Shekh, Salim Harun; Myrzakulov, Nurgissa; Pradhan, Anirudh; Mussatayeva, Assem (Symmetry, 2023)
      Any new gravitational theories can be built with the help of a gauge theory with local Poincare symmetry. This local Poincare symmetry can set up a space-time with torsion. In the present study, the authors working on the parametrization approach towards Hubble’s parameter in the frame of modified teleparallel Gauss-Bonnet gravity which is established on the torsion invariant T ...
      2024-11-27

    • Observational Constraints on F(T , TG) Gravity with Hubble’s Parametrization 

      Shekh, Salim Harun; Myrzakulov, Nurgissa; Pradhan, Anirudh; Mussatayeva, Assem (Symmetry, 2023)
      Shekh, S.H.; Myrzakulov, N.; Pradhan, A.; Mussatayeva, A. Observational Constraints on F(T , TG ) Gravity with Hubble’s Parametrization. Symmetry 2023, 15, 321. https://doi.org/10.3390/ sym15020321
      2025-01-23

    • Observational Constraints on F(T ,TG) Gravity with Hubble’s Parametrization 

      Shekh, Salim Harun; Myrzakulov, Nurgissa; Pradhan, Anirudh; Mussatayeva, Assem (Symmetry, 2023)
      Any new gravitational theories can be built with the help of a gauge theory with local Poincare symmetry. This local Poincare symmetry can set up a space-time with torsion. In the present study, the authors working on the parametrization approach towards Hubble’s parameter in the frame of modified teleparallel Gauss-Bonnet gravity which is established on the torsion invariant T ...
      2024-12-18

    • Observational constraints on the equation of state of viscous fluid in f(R, T) gravity 

      Koussour, M.; Altaibayeva, A.; Bekov, S.; Donmez, O.; Muminov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
      In this paper, we investigate a cosmological model based on viscous gravity as a potential alternative to dark energy. This model incorporates bulk viscosity and is analyzed using an effective equation of state. We consider the simplest specific model, , where is a constant. The exact solution of our viscous cosmological model is derived, and then we use the combined datasets ...
      2026-03-03

    • Observational constraints on the equation of state of viscous fluid in f(R,T) gravity 

      Koussour, M.; Altaibayeva, A.; Bekov, S.; Donmez, O.; Muminov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
      In this paper, we investigate a cosmological model based on viscous f(R,T) gravity as a potential alternative to dark energy. This model incorporates bulk viscosity and is analyzed using an effective equation of state. We consider the simplest specific model, f(R,T)=R+λT, where λ is a constant. The exact solution of our viscous f(R,T) cosmological model is derived, and then we ...
      2026-03-30

    • OBTAINING A FORMULA DESCRIBING THE INTERACTION OF FINE PARTICLES WITH AN EXPANDING GAS FLOW IN A FLUID LAYER 

      Alpeissov, Yessenbay; Iskakov, Ruslan; Issenov, Sultanbek; Ukenova, Aru (Eastern-European Journal of Enterprise Technologies, 2022)
      The interaction of fine particles with an expanding gas flow under fluidization conditions is considered. The objects of study are finely dispersed materials, their single particles, gas flow in a fluidized layer. The study used the laws of dynamics and hydrodynamics, the classical laws of mechanics, as well as mathematical methods for the analytical solution of equations. ...
      2024-10-17

    • OBTAINING A FORMULA DESCRIBING THE INTERACTION OF FINE PARTICLES WITH AN EXPANDING GAS FLOW IN A FLUID LAYER 

      Unknown author (Eastern-European Journal of Enterprise Technologies, 2022)
      The interaction of fine particles with an expanding gas flow under fluidization conditions is considered. The objects of study are finely dispersed materials, their single particles, gas flow in a fluidized layer. The study used the laws of dynamics and hydrodynamics, the classical laws of mechanics, as well as mathematical methods for the analytical solution of equations. ...
      2024-12-11