Отображаемые элементы 181-200 из 5785

    • Cluster folding analysis for 15N ions scattered by 13C and 27Al targets 

      Mauyeya, B.; Soldatkhana, D.; Hamada, Sh. (Revista Mexicana de Fısica, 2025)
      Motivated by two well-known cluster structures for the 15N nucleus, 11B +α and 13C +d, which appear at excitation energies of 10.992 and 16.159 MeV, respectively, the angular distributions (ADs) for 15N nuclei elastically scattered in the field of two medium-mass targets, namely, 27Al and 13C are investigated within the cluster folding model. Reasonable agreement between the ...
      2026-03-27
    • Calculation of the Main Parameters of the Two-Line Helical Traction Transmission of an Electric Locomotive Based on Diagnostic Parameters 

      Khromova, Galina; Radjibaev, Davran; Zabiyeva, Aliya; Kenesbek, Anuar; Mavlanov, Adham (Applied Sciences, 2025)
      Gearboxes used in electric locomotives are a critical unit, especially in freight rolling stock. The article presents the calculation of the main parameters of the two-way oblique traction transmission of the VL-80s electric locomotive (which is operated on the railways of Uzbekistan) based on a comprehensive analysis of the diagnostic parameters obtained using the Poisson ...
      2026-03-27
    • Bouncing cosmologies and stability analysis in symmetric teleparallel f(Q) gravity 

      Koussour, M.; Myrzakulov, N. (The European Physical Journal Plus, 2024)
      This paper is devoted to examining cosmological bouncing scenarios in the framework of the recently proposed symmetric teleparallel gravity (or f (Q) gravity), where the non-metricity scalar Q represents the gravitational interaction. We assume an f (Q) model in the form of f (Q) αQn, where α and n are free model parameters. To obtain a bouncing universe, we consider a ...
      2026-03-27
    • Big bang nucleosynthesis constraints on the energy-momentum squared gravity: The T2 model 

      Jang, Dukjae; Gangopadhyay, Mayukh R.; Cheoun, Myung-Ki; Kajino, Toshitaka; Sami, M. (Physical Review D, 2025)
      Scale-independent energy-momentum squared gravity (EMSG) allows different gravitational couplings for different types of sources and has been proven to have interesting implications in cosmology. In this paper, the big bang nucleosynthesis (BBN) formalism and the latest observational constraints on nuclear abundances are being used to put bounds on this class of modified gravity ...
      2026-03-27
    • Ayón-Beato-García black hole coupled with a cloud of strings: Thermodynamics, shadows and quasinormal modes 

      Kumar, Amit; Singh, Dharm Veer; Upadhyay, Sudhaker (International Journal of Modern Physics A, 2024)
      In this paper, we find an exact black hole solution for the Einstein gravity in the presence of Ayón-Beato-García nonlinear electrodynamics and a cloud of strings. The resulting black hole solution is singular, and the solution becomes nonsingular when gravity is coupled with Ayón-Beato-García nonlinear electrodynamics only. This solution interpolates between Ayón-Beato-García ...
      2026-03-27
    • A Systematic Literature Review of Current Trends in Electronic Voting System Protection Using Modern Cryptography 

      Aidynov, Tolegen; Goranin, Nikolaj; Satybaldina, Dina; Nurusheva, Assel (Applied Sciences, 2024)
      Electronic voting, based on cryptographic protocols and blockchain technology, represents an advanced method for ensuring the security, transparency, and reliability of electoral processes. The scientific research presented in this article is devoted to the analysis of trends and advanced technologies in the field of electronic voting. The authors propose a systematic mapping ...
      2026-03-27
    • Asymptotic normalization coefficients for 11B + p → 12C from the 11B(10B, 9 Be)12C reaction and the 11B(p, γ) 12C astrophysical S-factor 

      Sakhiyev, S.K.; Artemov, S.V.; Burtebayev, N.; Sakuta, S.B.; Igamov, S.B.; Nassurlla, Maulen; Rusek, K.; Wolinska-Cichocka, M.; Amangeldi, N.; Nassurlla, Marzhan; Trzcinska, A.; Yergaliuly, G.; Ergashev, F.Kh.; Tojiboev, O.R.; Son, I.Ya.; Sabidolda, A.; Khojayev, R.; Mukanov, Y.B.; Issayev, D.A. (Results in Physics, 2024)
      The 11B(10B,9 Be)12C reaction was studied at the energy of 41.3 MeV with transitions to the ground (0+) and lowlying excited 4.44 MeV (2+) and 9.64 MeV (3− ) states of 12C nucleus. The analysis of the measured angular distributions was carried out using a modified distorted wave (MDWBA) method, assuming a one-step proton transfer mechanism. It was shown that at small angles ...
      2026-03-27
    • A Study of the Relationship between the Dynamic Viscosity and Thermodynamic Properties of Palm Oil, Hydrogenated Palm Oil, Paraffin, and Their Mixtures Enhanced with Copper and Iron Fines 

      Dzindziora, Agnieszka; Dzienniak, Damian; Rokita, Tomasz; Wojciechowski, Jerzy; Sułowski, Maciej; Nurkusheva, Saltanat; Bembenek, Michał (Materials, 2024)
      The article presents the results of phase transition studies in which the following substances and their mixtures were tested: 100% palm oil, 100% paraffin, 100% hydrogenated palm oil, 50% palm oil + 50% paraffin, 50% hydrogenated palm oil + 50% palm oil, 33% hydrogenated palm oil + 33% palm oil + 33% soft paraffin, 20% hydrogenated palm oil + 30% palm oil + 50% soft paraffin, ...
      2026-03-27
    • Assessment and Improvement of Avatar-Based Learning System: From Linguistic Structure Alignment to Sentiment-Driven Expressions 

      Ukenova, Aru; Bekmanova, Gulmira; Zaki, Nazar; Kikimbayev, Meiram; Altaibek, Mamyr (Sensors, 2025)
      This research investigates the improvement of learning systems that utilize avatars by shifting from elementary language compatibility to emotion-driven interactions. An assessment of various instructional approaches indicated marked differences in overall effectiveness, with the system showing steady but slight improvements and little variation, suggesting it has the potential ...
      2026-03-27
    • Application of Quantum Key Distribution to Enhance Data Security in Agrotechnical Monitoring Systems Using UAVs 

      Bakyt, Makhabbat; Spada, Luigi La; Zeeshan, Nida; Moldamurat, Khuralay; Atanov, Sabyrzhan (Applied Sciences, 2025)
      Ensuring secure data transmission in agrotechnical monitoring systems using unmanned aerial vehicles (UAVs) is critical due to increasing cyber threats, particularly with the advent of quantum computing. This study proposes the integration of Quantum Key Distribution (QKD), based on the BB84 protocol, as a secure key management mechanism to enhance data security in UAV-based ...
      2026-03-27
    • Application of MCDM Methods to Optimal Consensus Protocol Selection for Blockchain-Based IoT Networks 

      Ospanov, Ruslan; Tashatov, Nurlan; Satybaldina, Dina; Seitkulov, Yerzhan; Yergaliyeva, Banu; Utebayev, Kuat (Applied Sciences, 2025)
      One of the modern areas of blockchain technology application is the Internet of Things (IoT). An important component of blockchain technology is the consensus layer. It includes consensus protocols that are used to establish and maintain consensus, as well as to ensure network security, accuracy, and protection of the registry from unauthorized access. Currently, there are a ...
      2026-03-27
    • Application of ion modification for alteration of anode materials based on ZnO/CoZn nanostructures 

      Zikirina, Ainur M.; Kozlovskiy, Artem L.; Kenzhina, Inesh E. (Optical Materials: X, 2024)
      During the conducted studies, it was established that the use of ion modification by irradiation with O+ and Ar+ ions makes it possible to elevate the degradation resistance of anode materials due to the effect of vacancy defect creation, the density of which varies with the irradiation fluence. At the same time, the analysis of changes in the band gap and the optical density ...
      2026-03-27
    • Application of EPR spectroscopy method for comparative analysis of structural damage accumulation kinetics in two-phase lithium-containing ceramics 

      Shlimas, Dmitriy I.; Borgekov, Daryn B.; Kozlovskiy, Artem L. (Optical Materials: X, 2025)
      The aim of this study is to determine the differences in the damaged layer degradation kinetics in two-phase lithium-containing ceramics based on Li2ZrO3 and Li4SiO4 compounds in the case of irradiation with protons and helium ions, simulating the gas swelling and blistering processes, as well as the accumulation of radiolysis products in the damaged layer. During the ...
      2026-03-27
    • Annealing of Oxygen-Related Frenkel Defects in Corundum Single Crystals Irradiated with Energetic Xenon Ions 

      Eugene, Kotomin A.; Assylbayev, Ruslan; Baubekova, Guldar; Kudryavtseva, Irina; Kuzovkov, Vladimir N.; Podelinska, Alise; Seeman, Viktor; Shablonin, Evgeni; Lushchik, Aleksandr (Crystals, 2025)
      The recovery of radiation damage induced by 231-MeV xenon ions with varying fluence (from 5 × 1011 to 2 × 1014 cm−2 ) in α-Al2O3 (corundum) single crystals has been studied by means of isochronal thermal annealing of radiation-induced optical absorption (RIOA). The integral of elementary Gaussians (product of RIOA spectrum decomposition) OK has been considered as a concentration ...
      2026-03-27
    • Exploring accelerated expansion in the universe: A study of f(Q,T) gravity with parameterized EoS and cosmological constraints 

      Koussour, M.; Myrzakulov, N.; Rayimbaev, J.; Errehymy, A.; Donmez, Orhan (Chinese Journal of Physics, 2024)
      The study conducted in this research paper utilizes the f(Q,T) gravity, where Q represents non-metricity and T represents the trace of the energy–momentum tensor, to investigate the accelerated expansion of the universe. To complete the study, an effective EoS with one parameter α, is parameterized as ωeff=−[Formula presented]. The linear version of f(Q,T)=−Q+σT is also considered, ...
      2026-03-27
    • Experimental and Numerical Study of a Cone-Top Pile Foundation for Challenging Geotechnical Conditions 

      Zhussupbekov, Askar; Sarsembayeva, Assel; Bazarov, Baurzhan; Omarov, Abdulla (Applied Sciences, 2025)
      This study investigates the behavior and performance of a newly proposed cone-top pile foundation designed to improve stability in layered, deformable, or strain-sensitive soils. Traditional shallow and uniform conical foundations often suffer from excessive settlement and reduced capacity when subjected to vertical loads and horizontal soil deformations. To address these ...
      2026-03-27
    • Experimental evaluation of combined humidifier-dehumidifier desalination with thermoelectric module for simultaneous use of heating and cooling 

      Kuterbekov, Kairat A.; Kabyshev, Asset M.; Bekmyrza, Kenzhebatyr Zh.; Kubenova, Marzhan M.; Aghajani.A, Amirhossein (International Journal of Thermofluids, 2024)
      The objective of this study was to assess the performance of a Humidifier-Dehumidifier (HDH) desalination system paired with thermoelectric cooling, in order to achieve effective water desalination. The system employed the thermoelectric module’s heating and cooling capabilities to warm the water entering the HDH system and remove moisture from the humid air. An investigation ...
      2026-03-27
    • Exact cosmological models in metric-affine F(R, T) gravity 

      Maurya, Dinesh Chandra; Myrzakulov, Ratbay (The European Physical Journal C, 2024)
      2026-03-27
    • Enhancing Visual Data Security: A Novel FSM-Based Image Encryption and Decryption Methodology 

      Shakhmetova, Gulmira; Barlybayev, Alibek; Saukhanova, Zhanat; Sharipbay, Altynbek; Raykul, Sayat; Khassenov, Altay (Applied Sciences, 2024)
      The paper presents a comprehensive exploration of a novel image encryption and decryption methodology, leveraging finite state machines (FSM) for the secure transformation of visual data. The study meticulously evaluates the effectiveness of the proposed encryption algorithm using a diverse image dataset. The encryption algorithm demonstrates high proficiency in obfuscating ...
      2026-03-27
    • Enhancing Real Estate Valuation in Kazakhstan: Integrating Machine Learning and Adaptive Neuro-Fuzzy Inference System for Improved Precision 

      Barlybayev, Alibek; Ongalov, Nurzhigit; Sharipbay, Altynbek; Matkarimov, Bakhyt (Applied Sciences, 2024)
      The concept of fair value, defined by the valuation of assets and liabilities at their current market worth, remains central to the International Financial Reporting Standards (IFRS) and has persisted despite critiques intensified by the 2008 financial crisis. This valuation method continues to be prevalent under both IFRS and the US Generally Accepted Accounting Principles ...
      2026-03-27