Suggested Topics within your search.
Suggested Topics within your search.
- Mathematical models 3
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1861
Overview of modern technologies for measuring, predicting and correcting turbulent distortions in optical waves
Published 2024-02-01“…The work consists of the following parts: description of a technique for measuring fluctuations of optical waves in an atmospheric path, theoretical calculations of fluctuations by analytical analysis and mathematical modeling methods, technology for predicting turbulent air movement by the numerical solution of the Navier–Stokes equations and, finally, constructing adaptive optics systems that compensate for the turbulent distortions in optoelectronic image construction systems. …”
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1862
Soil erosion by assessing hydrothermal conditions of its formation
Published 2019-08-01“…Formation of the soil’s natural profile on the slopes, caused by the action of natural factors of soil formation, can be described using a mathematical model, characterizing hydrothermal conditions of the slope areas through relative parameters of insolation (Ki) and moisture. …”
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1863
Numerical Simulation of Low-Permeability Reservoirs with considering the Dynamic Boundary Layer Effect
Published 2021-01-01“…On this basis, the mathematical model of oil-water two-phase flow which involves influence of the boundary layer was constructed, and the comparative analysis of the development effect is performed. …”
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1864
Secure Localization in Wireless Sensor Networks with Mobile Beacons
Published 2012-10-01“…The proposed SLMB scheme is also designed to resist wormhole attacks, and localization is developed based on a mathematical model to design a path for the mobile beacon node to traverse in order to cover the entire sensor network. …”
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1865
Study on the heat transfer characteristics of mine roadway surrounding rock under periodic airflow temperature: Numerical simulation and experimental validation
Published 2025-02-01“…In this work, a heat transfer mathematical model of roadway surrounding rock under periodic airflow temperature was established. …”
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1866
Numerical investigation of heat and mass transfer for unsteady multiphase flow in a vented cavity filled with hybrid nanofluid
Published 2025-04-01“…The investigation employs a novel dimensionless mathematical model to explore these dynamics using Buongiorno’s approach, which considers Brownian motion and thermophoresis in nanofluids. …”
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1867
Students' misconceptions in algebraic concepts: A four-tier diagnostic test approach
Published 2025-02-01“…The test consisted of 12 questions covering four aspects of algebraic thinking: problem-solving, mathematical modeling, generalization, and analytical thinking. …”
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1868
Foreign trade of Russia and Vietnam: modern trends and prospects of development
Published 2020-12-01“…The study develops a mathematical model for forecasting exports and imports of Russia and Vietnam by individual indicators until 2025. …”
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1869
Design and Analysis of an Optical Coupler for Concentrated Solar Light Using Optical Fibers in Residential Buildings
Published 2016-01-01“…This study deals with designing and simulating a high-efficiency coupler, employing a mathematical model to connect sunlight with fiber optics for multiple applications. …”
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1870
Homotopic Solution for 3D Darcy–Forchheimer Flow of Prandtl Fluid through Bidirectional Extending Surface with Cattaneo–Christov Heat and Mass Flux Model
Published 2021-01-01“…The Prandtl fluid motion is mathematically modeled using the law of conservations of mass, momentum, and energy. …”
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1871
Determination of Optimum Conditions for the Production of Activated Carbon Derived from Separate Varieties of Coconut Shells
Published 2017-01-01“…The results from experiment and the developed mathematical model were both found to be in agreement giving the optimum concentration of phosphoric acid and pH for producing activated carbon to be 0.67 M and 2.07 for the tall tree variety and 1 M and 1.98 for the dwarf variety at optimum temperatures in the range of 450–575°C and 575°C, respectively.…”
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1872
Investigation of vibration protection system of a seat with quasi-zero stiffness under stochastic effects on the elements of running equipment of a motor grader
Published 2023-03-01“…With the help of a complex simulation mathematical model of a motor grader developed in the Matlab environment, including subsystems of vibration-protective cab supports, a vibration-protective mechanism of the operator's seat, setting stochastic effects on the elements of running equipment when moving along a microrelief, a computational experiment is carried out, when processing the results of which, the influence of a number of system parameters on the root-mean-square seat acceleration deviation in the vertical direction. …”
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1873
Cyclic surfaces accompanying non-ruled quadrics of rotation
Published 2023-09-01“…The geometric scheme of surface shaping is based on a construction that includes: a curvilinear axis of rotation and a one-parameter set of its normal planes; a generatrix whose points describe in normal planes circular trajectories centered on a curvilinear axis. A mathematical model of shaping the surface of non-linear rotation for the general case of specifying the axis of rotation and the generatrix is given. …”
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1874
A modelling technique to determine the high frequency transformer leakage inductance using the winding structure
Published 2025-01-01“…By not varying the average length of turns in the winding configuration, the proposed method was able to maintain a consistent copper loss. A modified mathematical model has been put forward to determine the leakage inductance effectively and precisely. …”
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1875
Direct Torque Control of Dual Three Phase Induction Motor fed by Direct Power Control Rectifier using Fuzzy Logic Speed Controller
Published 2025-01-01“…To tackle these challenges, we propose a fuzzy logic-based speed controller for DTC, which enhances adaptability to system dynamics without necessitating a precise mathematical model. The fuzzy logic controller (FLC) is particularly effective in regulating speed under varying load conditions, improving robustness, and minimizing torque ripple. …”
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1876
Analysis and Design of the Project Risk Management System Based on the Fuzzy Clustering Algorithm
Published 2022-01-01“…The system introduces the fuzzy clustering maximum tree algorithm, and by constructing a mathematical model, combined with the empirical analysis, the key risk factors in the cost risk of power grid construction projects are identified. …”
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1877
Complex application of mathematical methods in diagnostics of diffuse liver diseases
Published 2011-02-01“…At inaccessibility of LB for diagnostics, LF stage can be assessed by noninvasive methods based on mathematical modelling with plotting of «images» of various etiological forms, LF stages and HAI of disease. …”
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1878
Optimal allocation of intelligent parking lots in distribution system: A robust two‐stage optimization model
Published 2022-06-01“…The aim of this paper is to optimally allocate IPLs in order to minimize system costs through a two‐stage mathematical model. The system cost involves installation cost, cost of exchanging the electrical power with an upstream grid, cost of the electrical power loss, network reliability cost, and emissions cost. …”
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1879
Design of Network and Pole for Meeting Lighting, Communication, and Energy Needs from a Single Source in Disasters
Published 2025-01-01“…In this study, following a systematic literature review, a multifunctional pole design was developed using engineering design methods, and the system's capacity and other parameters were evaluated through mathematical modeling. This hybrid pole provides a network structure offering integrated lighting, energy, and communication services during and after disasters. …”
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1880
A Multi-Objective Stochastic Model for an Earthquake Relief Network
Published 2020-01-01“…In this paper, a new stochastic multi-objective mixed integer mathematical model is developed and implemented in Kadikoy municipality of Istanbul, Turkey in order to configure part of the earthquake relief network. …”
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