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  1. 681

    Mathematical analysis of nanoparticle type and volume fraction on heat transfer efficiency of nanofluids by Evran Savas

    Published 2025-05-01
    “…Significance levels and contribution rates of the decisive factors on the heat transfer efficiency were calculated with Analysis of Variance. According to the mathematical responses, the most effective NPs on h and τ w were identified as Gr, Al2O3, and Cu, respectively, whereas the most effective NPs on number of transfer units are found to be Cu, Al2O3, and Gr, respectively. …”
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  2. 682

    An Investigation of Direct Hydrocarbon (Propane) Fuel Cell Performance Using Mathematical Modeling by Bhavana Parackal, Hamidreza Khakdaman, Yves Bourgault, Marten Ternan

    Published 2018-01-01
    “…An improved mathematical model was used to extend polarization curves for direct propane fuel cells (DPFCs) to larger current densities than could be obtained with any of the previous models. …”
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  3. 683

    Development of mathematical model of oscillatory processes at turning of materials with reverse hardness distribution by V. E. Ovsyannikov, E. M. Kuznetsova, R. Yu. Nekrasov, S. Yu. Titskaja

    Published 2024-06-01
    “…Mathematical model was carried out based on the determination of the turning tool deformations under the influence of cutting forces. …”
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  4. 684

    MATHEMATICAL MODELING OF PLANE IL-76TD-90VD LANDING IN ANTARCTICA by M. S. Kublanov, K. O. Chernigin

    Published 2017-01-01
    “…Based on the information from the Internet the authors decided to reproduce the possible conditions of landing the plane IL-76TD-90VD in Antarctica in their computer experiment using the mathematical modeling system of aircraft flight dynamics (MMS AFD), which is developed and continuously improved in MSTUCA. …”
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  5. 685

    A mathematical model for the spread of west nile virus in migratory and resident birds by Louis D. Bergsman, James M. Hyman, Carrie A. Manore

    Published 2015-12-01
    “…We develop a mathematical model for transmission of West Nile virus (WNV) that incorporates resident and migratory host avian populations and a mosquito vector population.We provide a detailed analysis of the model's basic reproductive number and demonstrate how theexposed infected, but not infectious, state for the bird population can be approximated by a reduced model.We use the model to investigate the interplay of WNV in both resident and migratory bird hosts. …”
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  6. 686
  7. 687

    Formalization of the Task of Creating a Mathematical Model of Combined Wastewater Treatment Processes by Alekseevsky D. G.

    Published 2021-12-01
    “…This paper focuses on the formation approach to formalize the mathematical modeling of wastewater treatment processes for further forming decision support systems for wastewater treatment facilities management on such a theoretical basis. …”
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  8. 688

    Mathematical temperature simulation in tool-to-work contact zone during metal turning by E. V. Bordatchev, V. P. Lapshin

    Published 2019-06-01
    “…In addition to the proposed new basic mathematical model, the processing effect of the observed data on the power of irreversible transformations and the measured temperature in the tool-to-work contact zone under metal turning are used. …”
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    Article
  9. 689

    Mathematical modeling of the process of functioning of objects and technical means of ensuring airfield control by A. A. Brailko, O. V. Gromov, G. I. Litinsky, V. K. Gromov

    Published 2021-08-01
    “…The article deals with the issue of blocking the refueling of aircraft in the event of the appearance of non-normalized technical documentation indicators of the quality of aviation fuel, which arise due to a number of different factors that lead to negative cause-and-effect relationships for flight safety. Based on the mathematical description, an approach to creating a system for protecting and blocking the refueling process under the working name "Barrier" is proposed. …”
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    Article
  10. 690

    Optimization of the Mathematical Model of Cyclone Separation Performance Based on Response Surface Analysis by Longfei CONG, Shengyu WANG, Jiajing LUO, Changchun ZHOU

    Published 2024-12-01
    “…At present, various researches on the separation performance of cyclone have been widely reported, but they are generally limited to the structural factors of cyclone, and do not consider the effects of operational factors (inlet pressure P, dispersion concentration Ci) and the interaction between factors on the separation performance. …”
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  11. 691

    The Optimization of Photovoltaic Systems Design Using Mathematical Modeling and QFD-DSM Methods by Marziyeh Kashani, Atefeh Amindoust, Mahdi Karbasian, Abbas Sheikh Aboumasoudi

    Published 2022-06-01
    “…Also, the Design Structure Matrix (DSM) has been used to evaluate the effect of elements upon each other in each phase. …”
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  12. 692

    Quantum Direct-Sequence Spread-Spectrum CDMA Communication Systems: Mathematical Foundations by Mohammad Amir Dastgheib, Jawad A. Salehi, Mohammad Rezai

    Published 2025-01-01
    “…This article describes the fundamental principles and mathematical foundations of quantum direct-sequence spread-spectrum code division multiple-access communication systems. …”
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  13. 693

    Validation of mathematical model of electrothermal calculation of DC catenary on the basis of scale model by A. V. Paranin, A. B. Batrashov

    Published 2018-08-01
    “…When studying the operation of the scale catenary model in the transit mode, the effect of the structural elements on the current distribution and heating of the wires was obtained. …”
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  14. 694

    MATHEMATICAL MODEL OF DENGUE HEMORRHAGIC FEVER SPREAD WITH DIFFERENT LEVELS OF TRANSMISSION RISK by Faishal Farrel Herdicho, Nabil Azizul Hakim, Fatmawati Fatmawati, Cicik Alfiniyah, John Olajide Akanni

    Published 2025-07-01
    “…This study highlights the utility of combining mathematical modeling with genetic algorithm-based parameter estimation to provide accurate insights into disease dynamics and inform effective control measures.…”
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  15. 695
  16. 696

    Simulation on Water Diversion Regulation Effect in the Central Ditch of Hengqin New District,Zhuhai by LONG Xiaofei, WU Yaju, FAN Qunfang, ZHU Song, WANG Hua, ZHU Jinhe

    Published 2023-01-01
    “…The tidal river network area of the Pearl River Delta uses the ebb-and-flow differences between tidal level of the outer river and water level of the inland river to divert clear water for regulation.This is an effective way to improve the water environment of the tidal river network.The central ditch of Hengqin New District is in the tidal river network area of the Pearl River Delta.To improve the water environment of the central ditch in Hengqin New District,this study builds a one-dimensional hydrodynamic mathematical model of water quality and investigates the hydrodynamic regulation scheme for improving the regional water environment.Then,the water exchange effects of the original regulation scheme and the optimized regulation scheme are calculated and analyzed.The simulation results show that the optimized regulation scheme increases the regional flow rate by 0.20 m/s,shortens the half-exchange period by 101.5 h,and increases the water exchange rate by a factor of 1.1,which demonstrates a great improvement effect on the regional water environment.The results can be used as a reference for the implementation of the water diversion regulation scheme in the tidal river network area.…”
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  17. 697

    Inverse analysis method for mathematical modeling of hydrodynamic ballast in a drilling rig by I. R. Antypas, A. G. Dyachenko, B. I. Saed

    Published 2021-04-01
    “…A mathematical model of the hydraulic brake has been created and tested. …”
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  18. 698

    METHODS OF MATHEMATICAL STATISTICS AS A MEANS OF PROFESSIONAL COMPETENCE FORMATION OF STUDENTS-ECOLOGISTS by S. I. Toropova

    Published 2018-04-01
    “…A number of the general methodical provisions which should be observed in mathematical statistics teaching are formulated to achieve a positive effect. …”
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  19. 699

    Experimental-Mathematical Modeling of Surface Moisture Removal from Pre-Moistened Seeds by F. A. Kipriyanov, A. V. Aleshkin, P. A. Savinykh

    Published 2025-03-01
    “…(Conclusions) Experimental and mathematical evaluations established that excess surface moisture can be effectively removed from caryopses when they contact a moisture-absorbing surface with a thickness approximately half that of the caryopsis; under a pressing force of around 0.19 newtons per square millimeter.…”
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  20. 700