Отображаемые элементы 41-60 из 273

    • Non-perturbative corrections to quasi-topological black hole thermodynamics 

      Srivastava, Vivek Kumar; Upadhyay, Sudhaker; Verma, Alok Kumar; Singh, Dharm Veer; Myrzakulov, Yerlan; Myrzakulov, Kairat (Physics of the Dark Universe, 2025)
      We examine the impact of non-perturbative quantum corrections on the entropy of both charged and charged rotating quasi-topological black holes, focusing on their thermodynamic properties. The negative-valued correction to the entropy for small black holes is unphysical. Furthermore, we analyze the effect of these non-perturbative corrections on other thermodynamic quantities, ...
      2026-03-02
    • Exploring late-time cosmic acceleration: A study of a linear f(T) cosmological model using observational data 

      Zhadyranova, A.; Koussour, M.; Bekkhozhayev, S.; Zhumabekova, V.; Rayimbaev, J. (Astrophysics, 2024)
      Understanding the evolution of dark energy poses a significant challenge in modern cosmology, as it is responsible for the universe's accelerated expansion. In this study, we focus on a specific cosmological model and analyze its behavior using observational data, including 31 data points from the CC dataset, 1048 points from the Pantheon SNe Ia samples, and 6 points from the ...
      2026-03-02
    • Exploring cosmological evolution and constraints in teleparallel gravity 

      Koussour, M.; Altaibayeva, A.; Bekov, S.; Holmurodov, F.; Muminov, S.; Rayimbaev, J. (Astrophysics, 2024)
      This study explores the extension of teleparallel gravity within the framework of general relativity, introducing an algebraic function dependent on the torsion scalar . Motivated by the teleparallel formulation, we investigate cosmological implications, employing the simplest parametrization of the dark energy equation of state. Our chosen function, , undergoes stringent ...
      2026-03-02
    • Enhancement of local traffic management systems using information technology 

      Jumayev, Sherzod; Suyunbayev, Shinpolat; Sultanov, Timur; Akhmedova, Muslima; Toxtakxodjaeva, Mafirat (E3S Web of Conferences, 2024)
      In the article the analysis and researches on optimization of the process of transfer and assembly of local wagons at freight stations in railway transport are carried out. In particular, on the basis of the results of the work a structural scheme for effective organization of the wagon flow has been carried out to optimize the work on formatting of multi-group trains ...
      2026-03-02
    • EFFECTS OF GEOGRID AND NON-WOVEN GEOTEXTILES ON THE SHEAR BEHAVIOR OF SOIL 

      Tulebekova, Assel; Kusbergenova, Zhanar; Dosmukhambetova, Balganym; Bakirova, Dana; Tleulenova, Gulshat; Zhumadilov, Iliyas (International Journal of GEOMATE, 2024)
      Geosynthetic reinforcement plays a significant role in construction projects by stabilizing and enhancing the bearing capacity of soil. However, the complex interactions between soil and geosynthetic materials are open for investigation. This study aims to elucidate interactions by examining the effects of various geosynthetic materials, specifically nonwoven geotextile and ...
      2026-03-02
    • Effect of soapstock in the composition of modified additive for improving strength characteristics of concrete structures 

      Dyussembinov, D.S.; Lukpanov, R.E.; Altynbekova, A.D.; Zhantlesova, Zh.B.; Talal, Awwad (Complex Use of Mineral Resources, 2025)
      The article presents the results of research on the influence of soapstock used in the composition of two-component modified additive. Standard tests of beam samples for flexural and compressive strength, and standard cubic samples for water absorption and frost resistance were performed. Tests were performed for samples with different contents of soapstock (Sp): 5, 7.5, ...
      2026-03-02
    • Effect of Aggregate Gradation on Asphalt Concrete Properties 

      Kosparmakova, S.A.; Shashpan, Zh.A.; Guler, M. (Complex Use of Mineral Resources, 2024)
      Economic expansion is a positive side effect of national highway construction initiatives. So, the plan is to construct these projects rapidly. This calls for premium asphalt. As a result of aggregate gradation variation, numerous asphalt mixes have been rejected and rebuilt on-site in recent decades, resulting in the waste of valuable resources and valuable time. Consequently, ...
      2026-03-02
    • DURABILITY ASSESSMENT OF CELLULAR CONCRETE THROUGH STRENGTH EVALUATION UNDER ADVERSE ENVIRONMENTAL CONDITIONS 

      Lukpanov, Rauan; Dyussembinov, Duman; Zhantlessova, Zhibek; Altynbekova, Aliya; Yenkebayev, Serik; Orazova, Dinara (International Journal of GEOMATE, 2024)
      This article presents the results of durability assessment for various types of cellular concrete. The research was conducted on aerated concrete samples utilizing a two-stage foam introduction method, classical foam concrete method, and autoclaved aerated concrete. Adverse factors affecting the material's durability were attributed to the influence of natural-climatic ...
      2026-03-02
    • Digitalization of the thermoplastic beryllium oxide slurry forming process using ultrasonic activation 

      Zhapbasbayev, U.K.; Ramazanova, G.I.; Retnawati, H.; Sattinova, Z.К. (Complex Use of Mineral Resources, 2024)
      This paper presents the results of the digitalization of the thermoplastic beryllium oxide slurry forming process using ultrasonic activation. Ceramics made from beryllium oxide (BeO) using ultrasound-assisted forming exhibit more intense sintering and, in comparison to ceramics formed without ultrasound, have reduced shrinkage (by 2.4-4.3%) and sintering temperature (by ...
      2026-03-02
    • Development of effective algorithms for calculating current distribution coefficients of an electric power system 

      Akhmetbaev, Dauren; Dzhandigulov, Abdygali; Akhmetbaev, Arman; Bystrova, Svetlana (E3S Web of Conferences, 2024)
      Calculations of steady-state modes of a complex electric power system are significantly simplified if we use the coefficients of distribution of the setting currents. The use of the theory of directed graphs for the formation of the matrix of the coefficients of distribution of the setting currents is directly related to the determination of the values of all possible and ...
      2026-03-02
    • DEFINING A SUSTAINABLE TOURISM PERSPECTIVES IN EASTERN PART OF BALKHASH-ALAKOL BASIN 

      RAKHIMZHANOVA, Gulnur RAKHIMZHANOVA; MUSSINA, Kamshat (Geojournal of Tourism and Geosites, 2025)
      This study focuses on the existing shortcomings of greening, absence of parks for long-term development of Eastern part of the Balkhash-Alakol Basin (Destination). We identifyed these issues through GIS analysis. And study aims to underline the importance of Destination's green development. We had done verification visually by radar and optical images by using GIS technology, ...
      2026-03-02
    • Cosmological constraints on time-varying cosmological terms: A study of FLRW universe models with Λ(t)CDM cosmology 

      Koussour, M.; Myrzakulov, N.; Rayimbaev, J. (Cosmology and Nongalactic Astrophysics, 2024)
      This paper explores models of the FLRW universe that incorporate a time-varying cosmological term \Lambda(t). Specifically, we assume a power-law form for the cosmological term as a function of the scale factor: \Lambda(t)=\Lambda_{0} a(t)^{-\alpha}, where \Lambda_{0} represents the present value of the cosmological term. Then, we derive an exact solution to Einstein's field ...
      2026-03-02
    • COMPREHENSIVE VIBRATION ANALYSIS OF DRIVEN PILES AT AN INDUSTRIAL DEVELOPMENT SITE IN KAZAKHSTAN: 9 IMPLICATIONS FOR CONSTRUCTION SAFETY AND ENGINEERING PRACTICES 

      Неизвестный автор (International Journal of GEOMATE, 2025)
      The installation of piles at construction sites produces vibrations that may extend for hundreds of meters from the location of the pile. Depending on their proximity to this activity, these vibrations can induce damage to nearby structures. The results of a vibration monitoring study that was performed at a water treatment plant in the Republic of Kazakhstan are presented. ...
      2026-03-02
    • Changes in pH during the ozonation process of surface water 

      Kalandarov, Palvan; Zhunussov, Kanat; Kassimov, Abdurazak; Baibolov, Bagzhan; Junussov, Nuridin; Kaliyeva, Kazima (E3S Web of Conferences, 2024)
      This work considers the ozonation of surface water as an effective method for treating water to eliminate microorganisms and remove organic pollutants. However, the ozonation process changes the physicochemical properties of water, notably the pH level. Changes in pH can significantly affect the efficiency of water purification and potentially impact the condition of aquatic ...
      2026-03-02
    • Calculation of the thermoplastic beryllium oxide slurry molding with ultrasonic activation 

      Zhapbasbayev, U.K.; Ramazanova, G.I.; Terekhov, V.I.; Sattinova, Z.К. (Complex Use of Mineral Resources, 2024)
      The article presents the results of assessing thermal shrinkage during the formation of beryllium oxide ceramics using the hot casting method. The thermoplastic slurry is a composite system with a dispersion medium (binder) that has a very low thermal conductivity compared to the dispersed phase (beryllium oxide). Ultrasonic treatment reduces the viscosity of the slurry and ...
      2026-03-02
    • Bearing Capacity of Precast Concrete Joint Micropile Foundations in Embedded Layers: Predictions from Dynamic and Static Load Tests according to ASTM Standards 

      Omarov, Abdulla; Sarsembayeva, Assel; Zhussupbekov, Askar; Nurgozhina, Malika; Tleulenova, Gulshat; Yeleussinova, Akmaral; Isakulov, Baizak (Infrastructures, 2024)
      In this paper, joint precast piles with a cross-section of 400 × 400 mm and a pin-joined connection were considered, and their interaction with the soil of Western Kazakhstan has been analyzed. The following methods were used: assessment of the bearing capacity using the static compression load test (SCLT by ASTM) method, interpretation of the field test data, and the ...
      2026-03-02
    • ASSESSMENT OF THE READINESS OF THE TOURISM INDUSTRY IN THE PAVLODAR REGION FOR THE IMPLEMENTATION OF SUSTAINABLE TOURISM 

      YESSIMOVA, Dinara; FAURAT, Alina; BELYY, Alexandr; YESSIM, Ayana; NOVIKOVA, Aleksandra; OLSHANSKAYA, Marina; SAFAROV, Ruslan; BILALOV, Bahadur; BUMBAK, Silviu-Vasile (Geojournal of Tourism and Geosites, 2024)
      Prior to the integration of sustainable development principles into the tourism industry of Pavlodar region, it is essential to assess the current situation and the readiness of the sector participants to implement them. This requires exploring international standards of sustainable tourism and adapting them for evaluation by managers, entrepreneurs, local communities and ...
      2026-03-02
    • Assessment of the physical and mechanical characteristics of sand for the production of foam concrete using the two-stage foam injection method 

      Lukpanov, R.E.; Dyussembinov, D.S.; Altynbekova, A.D.; Yenkebayev, S.B.; Talal, Awwad (Complex Use of Mineral Resources, 2025)
      The article presents the results of experimental studies of the properties of quarry sand to assess their suitability for use in the production of foam concrete. The sites of quarry sand extraction in the territory of the Akmola region are analyzed and their physical and mechanical characteristics are characterized. Evaluation of the physical and mechanical characteristics ...
      2026-03-02
    • ASSESSMENT OF THE MAIN COMPONENTS OF THE NATURAL AND RECREATIONAL POTENTIAL OF THE TENIZ-KORGALZHYN DEPRESSION USING GEOINFORMATION TECHNOLOGIES AND REMOTE SENSING METHODS 

      SAGATBAYEV, Yerzhan; TURSYNOVA, Tangal; DUNETS, Alexander; MAZBAYEV, Ordenbek; JAXYLYKOVA, Aitbala; ABILOVA, Sholpan; KARABALAYEVA, Aiman; AMANGELDI, Aigerim; PASHKOV, Sergey (Geojournal of Tourism and Geosites, 2025)
      This article presents the research results and the development of a methodology for assessing the components of the natural and recreational potential of the Teniz-Korgalzhyn depression focusing on its suitability for recreation and ecotourism development. The aim of the study is to analyze the key components of the natural environment that form the basis of the recreational ...
      2026-03-02
    • ASSESSMENT OF RECREATIONAL DISTURBANCE IN THE FOREST MASSIFS OF KOSTANAY REGION 

      OZGELDINOVA, Zhanar; ZHANGUZHINA, Altyn; MUKAYEV, Zhandos; SAGINOV, Kairat; AYAPBEKOVA, Aliya (Geojournal of Tourism and Geosites, 2024)
      The article discusses the results of assessing the recreational disturbance of forest massifs within the Kostanay region. The objective of this research is to assess the recreational disturbance of forests in the Kostanay region based on field data utilizing GIS. In the first stage of the work, evaluation indicators and observation points were selected in each forest massif. ...
      2026-03-02