Showing 18,461 - 18,480 results of 19,524 for search '"Mathematics"', query time: 0.08s Refine Results
  1. 18461

    Priority areas of support for small and medium-sized enterprises within the framework of innovation policy by S. V. Simonov, V. S. Osipov

    Published 2023-12-01
    “…In the course of the study, using mathematical and statistical methods, analysis, and synthesis. …”
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    Article
  2. 18462

    Measures to reduce enviromental risk on transport in the regions by A. A. Bychkova

    Published 2021-10-01
    “…The analysis of emissions has been carried out based on data from the Federal Service for Supervision of Natural Resources Management (Rosprirodnadzor) using empirical and mathematical, statistical methods. A brief description of the method of calculation of evaporation from transport has been given. …”
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  3. 18463

    Health Assessment of Foundation Pit Based on the Fuzzy Analytical Hierarchy Process by Jinbo Sun, Ke Sun, Liang Gong, Sheng Gu, Hao Hao

    Published 2022-01-01
    “…Combined with the fuzzy mathematical method, the membership functions of four health degree levels (A to D) are constructed, and the determination range of each health degree level is given to realize the quantitative calculation of the health condition from the bottom-level assessment factor to the overall foundation pit. …”
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  4. 18464

    Impact of media coverage on the transmission dynamics of TB with vaccines and treatment. by Kumneger Tadesse Mulugeta, Mohammed Yiha Dawed, Shewafera Wondimagegnhu Teklu

    Published 2025-01-01
    “…The main objective of this study is to investigate the impact of media coverage on the transmission dynamics of TB with vaccine and treatment strategy using mathematical model analysis. In the qualitative analysis of the proposed model we proved the existence, uniqueness, positivity, and boundedness of the model solutions, investigated both the disease-free and endemic equilibrium points, computed the basic and effective reproduction numbers using next generation matrix approach, analyzed the stability analysis of the equilibrium points, the backward bifurcation using the Castillo-Chavez and Song theorem and we re-formulated the corresponding optimal control problem and analyzed by applying the Pontryagin's Minimum Principle. …”
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  5. 18465

    Enhanced Production of Xylitol from Corncob by Pachysolen tannophilus Using Response Surface Methodology by S. Ramesh, R. Muthuvelayudham, R. Rajesh Kannan, T. Viruthagiri

    Published 2013-01-01
    “…The optimal levels of these variables were quantified by the central composite design using RSM, for establishment of a significant mathematical model with a coefficient determination of . …”
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  6. 18466

    Safety Evaluation for Highway Geometric Design Based on Spatial Path Properties by Lu Wang

    Published 2023-01-01
    “…First, these combinations of horizontal and vertical alignments were categorized into six classifications, each with its own spatial expression in mathematical form. After manipulating the curvature and torsion of the spatial curve algebraically, the correlation between geometric design variables and crash rate was ultimately established. …”
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  7. 18467

    Fuzzy Sliding Mode Control of Plate Vibrations by Manu Sharma, S.P. Singh

    Published 2010-01-01
    “…Finite element method is used to obtain mathematical model of the test plate. A design approach of a sliding mode controller for linear systems with mismatched time-varying uncertainties is used in this paper. …”
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    Article
  8. 18468

    Retrospective analysis and forecasting of the spread of viruses in real time: the case of COVID-19 in St. Petersburg and Moscow in 2020–2021 by Victor V. Zakharov, Yulia E. Balykina

    Published 2024-12-01
    “…The aim of the study is to apply mathematical methods to generate forecasts of the dynamics of random values of the percentage increase in the total number of infected people and the percentage increase in the total number of recovered and deceased patients. …”
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    Article
  9. 18469

    Mixed Integer Linear Programming Based Speed Profile Optimization for Heavy-Haul Trains by Huazhen Yu, Yihui Wang, Andrea D’Ariano, Anzheng Lai, Youneng Huang

    Published 2023-01-01
    “…In this paper, a discrete-time-based mathematical formulation is proposed to address the speed profile optimization problem in order to ensure the safe, efficient, and economical operation of heavy-haul trains (HHTs). …”
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    Article
  10. 18470

    AI-Based Classification Model for Low-Energy Buildings: Promoting Sustainable Economic Development of Smart Cities With Spherical Fuzzy Decision Algorithm by Lin Yang

    Published 2025-01-01
    “…Additionally, a robust comparison method is used to prove the supremacy of derived theories and pioneered mathematical terminologies. In the end, some key features and remarkable comments are also discussed.…”
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    Article
  11. 18471

    THE EFFECTIVENESS OF LEARNING MANAGEMENT APPLICATION IN FOUNDATION ENGINEERING BASED ON E-MODULES IN THE BUILDING ENGINEERING EDUCATION PROGRAM, STATE UNIVERSITY OF JAKARTA by Santoso Sri Handoyo, Rezi Berliana Yasinta, Diah Ayu Wukir, Husnaini, Nabila Rizqiani

    Published 2025-01-01
    “…Additionally, the complexity of Foundation Engineering I material necessitates intensive guidance from lecturers to support mathematical and conceptual understanding. …”
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    Article
  12. 18472

    Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System by Pedram Hosseini, Nasibeh Hatami, Seyed Rohollah Hoseini Vaez

    Published 2023-08-01
    “…Meta-heuristic algorithms can be used to achieve optimal design and appropriate safety since mathematical calculations are time-consuming. As part of this study, the Enhanced Vibration Particle System (EVPS) and Vibration Particle System (VPS) have been applied to DDO (incorporating reliability assessment) and RBDO of three dome trusses. …”
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  13. 18473

    Evaluation of Existing Bond-Slip Relations for CFRP-Steel Joints and New Model for Linear and Nonlinear Adhesives by Mohammed J. Altaee, Sarmed A. S. Altayee, Majid M. A. Kadhim, Akram Jawdhari, Ali Majdi, Ali Chabuk, Nadhir Al-Ansari

    Published 2022-01-01
    “…Existing bond-slip (τ-s) relations for fibre-reinforced polymer (FRP)-steel joints employ different shapes and mathematical expressions, inferring that their predictions of failure load and mode, and other interface properties, might be inconsistent or inaccurate. …”
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  14. 18474

    A Review of Stall Detection in Subsonic Axial Compressors by Kellie N. Wilson, Golam Gause Jaman, Anish Thapa, Amirthavarshini Vivekananda, Mitchell Lowe, Zachary Grima, Marco P. Schoen

    Published 2024-12-01
    “…In particular, a review is presented in the types and characteristics of stalls, the major mathematical models used to describe these systems, influences of physical attributes such as tip clearance, guide vanes, and groove casing—operating as passive control elements—but also active control utilities such as air injection are discussed along with a detailed review of existing stall precursor detection algorithms. …”
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    Article
  15. 18475

    Comparative use of different AI methods for the prediction of concrete compressive strength by Mouhamadou Amar

    Published 2025-03-01
    “…Additionally, analytical mathematical models are often used to estimate concrete characteristics. …”
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    Article
  16. 18476

    Synthesis of dendritic silver nano powder using pulsing electrolysis in ammonia solution by Soltanzadeh A., Shahini S., Rashchi F., Saba M.

    Published 2019-01-01
    “…The optimum condition to synthesize the dendritic silver nano powders were 7.52 V; [NH3] = 64.75 g/L; [Ag+] = 0.45 g/L; total time = 17.59 min; Ton = 6.97 ms; Toff = 4 ms; and Trev = 1.89 ms. A mathematical model was also presented. The predicted silver nano size dendrite arm at the optimum condition was found to be 87.29 nm which was very close to the experimental value of 90 nm.…”
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  17. 18477

    Improving the selection of object-analogues of oil and gas fields in designing reservoir engineering by Alexander V. Karsakov, Pavel N. Zyatikov, Kirill V. Sinebriukhov, Irina V. Sharf

    Published 2025-01-01
    “…Evaluation and analysis of the necessary data to define the degree of similarity of reservoir development by the methods of mathematical statistics and machine learning. Results. …”
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    Article
  18. 18478

    Predicting individual traits from models of brain dynamics accurately and reliably using the Fisher kernel by Christine Ahrends, Mark W Woolrich, Diego Vidaurre

    Published 2025-01-01
    “…The Fisher kernel is constructed from the HMM in a mathematically principled manner, thereby preserving the structure of the underlying model. …”
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  19. 18479

    Study on Mechanism of Viscoelastic Polymer Transient Flow in Porous Media by Huiying Zhong, Weidong Zhang, Hongjun Yin, Haoyang Liu

    Published 2017-01-01
    “…These models capture the complexity and topology of porous media geometry. We establish a mathematical model for transient flows of viscoelastic polymers using computational fluid dynamics simulations, and we study the distributions of pressure and velocity for different elasticity scenarios and different flooding process. …”
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  20. 18480

    Wreathing, discrete gauging, and non-invertible symmetries by Julius F. Grimminger, William Harding, Noppadol Mekareeya

    Published 2025-01-01
    “…Abstract ’t Hooft anomalies of discrete global symmetries and gaugings thereof have rich mathematical structures and far-reaching physical consequences. …”
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    Article