Suggested Topics within your search.
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2641
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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2642
Integrated approach for estimating climate change impacts on CO2 sink capacity of inland waterbodies using hydrodynamic modelling and GIS analysis
Published 2025-01-01“…According to the developed approach, CO2 solubility under variable temperature and salinity is mathematically modelled and this model is further used with the developed hydrodynamic model data for Wadi El-Rayan Lakes (temperature, salinity and water depth) to estimate their CO2 sink capacities. …”
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2643
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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2644
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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2645
A novel optimal design approach for bladeless wind turbines considering mechanical properties of composite materials used
Published 2025-01-01“…The study aims to maintain optimal performance without any decline that is observed in conventional bladeless wind turbines by controlling the turbine’s natural frequency through implementing these mechanisms, either by adjusting the effective length of the stand or by incorporating an additional mass in the hollow mast, or both. A mathematical model including dynamic analysis is constructed to adjust natural frequency to match the shedding frequency at the specified wind speed. …”
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2646
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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2647
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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2648
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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2649
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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2650
DESIGN AND EXPERIMENTAL STUDY ON KEY COMPONENTS OF WOOD PILE CRUSHER
Published 2021-01-01“…Finally, The results show that the correction coefficient of the function model is 92.4%, indicating that the function fitting degree is good and can accurately reflect the changing law of the hobbing force; Combined with experimental verification, the deviation between compute and experimental results is 14%~16.4%,indicating that the mathematic model has a good engineering reference value for actual hobbing.…”
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2651
Study on Energy Management Strategy for Hybrid Heavy-duty Truck based on Dynamic Programming
Published 2020-11-01“…Firstly, the quasi-static vehicle model of hybrid heavy-duty truck is established based on Matlab software platform, and the mathematical model of dynamic programming optimization control is built with the fuel economy taken as the objective function, the state of charge for the batteries taken as the state variable, and the torque distribution proportion coefficient of hybrid system taken as the control variable. …”
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2652
Process Optimization for Acid Hydrolysis and Characterization of Bioethanol from Leftover Injera Waste by Using Response Surface Methodology: Central Composite Design
Published 2022-01-01“…For this analysis, the mathematical model equation was developed and the R2 value was 99.9% and its desirability was 0.8867. …”
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2653
Numerical Simulation of the Effect of Long-Term Reclamation on the Flow and Sediment Concentration in Binhai Port,Yancheng
Published 2021-01-01“…Binhai Port is located at the most obvious corrosive coastline of the abandoned Yellow River delta in the north of Jiangsu Province,where the near-shore wave and flow dynamic is strong,the sediment movement is relatively active,the underwater terrain is complex and the slope erosion is obvious.Based on the measured hydrological and sediment data and a two-dimensional mathematical model for wave,tidal current and sediment,this paper quantitatively analyzes the influence of the long-term reclamation project on the flow and sediment concentration in the study area and the surrounding estuary,and emphatically discusses the back silting characteristics and deposition causes of the 300 000-ton channel during normal and rough weather.The results show that:After the implementation of the reclamation project,the flow and sediment characteristics of the study area don't change in a large scale,and mainly the flow and sediment near the project site is affected.The sediment is deposited after the channel dredging and a sediment deposit centered at the area with peak sediment concentration is formed in the channel,with decreasing deposition thickness to the port and outer sea channel.During rough weather,the maximum deposition thickness can reach 8~24 times of that in normal weather,but it is less than 0.2 m/d and there is no sudden silting and navigation blocking.…”
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2654
An Analytical Method for Determining the Bottom-Hole Pressure of Vertical Well With Multiple Fractures
Published 2024-01-01“…First, the physical model and corresponding mathematical model are established. Then, the solution of bottom-hole pressure can be obtained through Laplace transformation. …”
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2655
Numerical Simulation of the Thermal-Hydro-Mechanical Characteristics of High-Speed Railway Roadbeds in Seasonally Frozen Regions
Published 2020-01-01“…A multiphysics mathematical model of high-speed railway (HSR) roadbeds is necessary to facilitate a good level of understanding of the frost heaving mechanism. …”
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2656
Robust Optimization Design for Combined Tooth Surface Modification of Helical Gear Pair Considering Load Variation Domain
Published 2024-08-01“…Secondly, combining tooth profile modification, lead modification and bias modification, based on the robust optimization design theory, a multi-objective mathematical model of combined modification parameters considering the load variation region is proposed aiming to minimize the expectation and variance of the transmission error fluctuations. …”
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2657
Cooperative Intercept Guidance of Multiple Aircraft with a Lure Role Included
Published 2018-01-01“…Under the assumption that the pursuing aircraft adopts the augmented proportional guidance law and first-order dynamics, a cooperative intercept mathematical model with an intercept angle constraint is established, allowing for the cooperative maneuvering of the evader. …”
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2658
Modeling the control of infectious diseases: Effects of TV and social media advertisements
Published 2018-11-01“…Therefore, in this paper, we propose a mathematical model to see how TV and social media advertisements impact the dynamics of an infectious disease. …”
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2659
Hybrid in-situ and ex-situ hydrolysis of catalytic epoxidation neem oil via a peracid mechanism
Published 2025-01-01“…ANOVA revealed the significant order of parameters as reaction stop time > water addition time > water/neem oil molar ratio. Lastly, a mathematical model was developed using MATLAB, applying the fourth-order Runge–Kutta method and simulated annealing optimization to determine the best-fitting kinetic model. …”
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2660
Water Absorption Behavior of Teff (Eragrostis tef) Straw Fiber-Reinforced Epoxy Composite: RSM-Based Statistical Modeling and Kinetic Analysis
Published 2022-01-01“…The investigation on mathematical model for water absorption property at different fiber loadings (4%, 8%, 12%, 16, and 20%) was carried out, and the analysis on the kinetic behavior of water absorption was also investigated. …”
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