Showing 3,061 - 3,080 results of 3,115 for search '"mathematical models"', query time: 0.08s Refine Results
  1. 3061
  2. 3062
  3. 3063

    Dynamic Voltage Balancing Across Series-Connected 10 kV SiC JBS Diodes in Medium Voltage 3L-NPC Power Converter Having Snubberless Series-Connected 10 kV SiC MOSFETs by Sanket Parashar, Nithin Kolli, Raj Kumar Kokkonda, Ajit Kanale, Subhashish Bhattacharya, Bantval Jayant Baliga

    Published 2024-01-01
    “…To address these challenges, this research develops a mathematical model for the switching transition between 10 kV SiC <sc>mosfet</sc>s and complementary 10 kV SiC JBS diodes in a two-level clamped inductive switching (CIS) test setup. …”
    Get full text
    Article
  4. 3064
  5. 3065

    Fractional-order PID feedback synthesis controller including some external influences on insulin and glucose monitoring by Kottakkaran Sooppy Nisar, Muhammad Farman, Khadija Jamil, Saba Jamil, Evren Hincal

    Published 2025-02-01
    “…Numerical simulations, mathematical modeling, and analysis work together to shed light on the dynamics of diabetes mellitus and make important advances in the knowledge and treatment of this common disease.…”
    Get full text
    Article
  6. 3066

    Determining the Height of Water-Flowing Fractured Zone in Bedrock-Soil Layer in a Jurassic Coalfield in Northern Shaanxi, China by Jie Feng, Sujian Wang, Enke Hou, Xiang Ding, Huijun Duan

    Published 2021-01-01
    “…The microresistivity scanning imaging results were consistent with those obtained by other methods. (2) Based on the thickness of the soil layer and the bedrock, the height model of the water-flowing fracture zone was divided into four regions, that is, the thick bedrock-thick soil layer region, thick bedrock-thin soil layer region, thin bedrock-thin soil layer region, and thin bedrock-thick soil layer region. A mathematical model describing the difference between the thickness of the water-flowing fractured zone and the bedrock and the thickness of the soil under the condition of bedrock-soil was established. (3) We conclude that microresistivity scanning imaging technology can accurately detect the height of the water-flowing fractured zone in a soil layer, and the apparent density logging and long-range gamma logging can precisely detect the height of the water-flowing fractured zone in bedrock. …”
    Get full text
    Article
  7. 3067

    The Law of Fracture Evolution of Overlying Strata and Gas Emission in Goaf under the Influence of Mining by Cheng Cheng, Xiaoyu Cheng, Rui Yu, Wenping Yue, Chao Liu

    Published 2021-01-01
    “…The mine is characterized by overlying strata fracture in goaf during the process of working face mining. A mathematical model of gas source emission from the working face and gas migration and the finite element COMSOL software were used to simulate the law of gas migration in the region with overlying strata fissures under the influence of mining. …”
    Get full text
    Article
  8. 3068

    The influence features of individual factors on EU countries’ energy markets by Vladyslav Honcharenko, Svitlana Kasyan, Anatolii Filin

    Published 2023-12-01
    “…To assess the influence degree of energy market indicators on macroeconomic development, which allows to identify the important factors for analysis and to indicate the general position of energy markets in the economy there are used following general scientific methods: systematic, logical and descriptive; analysis and synthesis; statistical; economic-mathematical modeling, namely the construction of a correlation-regression model. …”
    Get full text
    Article
  9. 3069

    A model for predicting acute heart failure in patients with acute myocardial infarction by taking into account energy and adipokine metabolism indicators by M.Yu. Koteliukh

    Published 2022-09-01
    “…The study showed decreased levels of adropin, irisin and CTRP3 and increased levels of FABP4 in AMI patients. A mathematical model for predicting AHF development in AMI patients was proposed. …”
    Get full text
    Article
  10. 3070

    Primena daljinske detekcije u inventuri mešovitih šuma hrasta lužnjaka by Borota Dragan, Pantić Damjan, Ponjarac Radenko, Popović Aleksandar

    Published 2024-01-01
    “…In high, mixed, middle-aged and maturing Penduculate oak stands, the possibility of using aerial photogrammetry in the inventory was tested, both to obtain informa­tion related to site and stand information and to determine numerical elements (number of trees, basal area and volume per hectare) obtained on the basis of data read from the images (crown diameter, height and estimated breast height diameter of the tree based on the selected mathematical model). Most of the information from the site and stand infor­mation, especially the information about the above-ground parts of the forest (presence of dead cover, ground vegetation, shrubs, weeds, saplings and the degree of their damage, etc.) could not be identified from the image. …”
    Get full text
    Article
  11. 3071

    Thermal enhancement using variable characteristics and tripartite diffusion features of solar aircraft wings in context of Reiner-Philippoff hybrid nanofluid passing through a para... by Esraa N. Thabet, A.M. Abd-Alla, S.M.M. El-Kabeir

    Published 2025-01-01
    “…With the utilization of the appropriate similarity transformations, partial differential equations that represent the mathematical model can be simplified to ordinary differential equations. …”
    Get full text
    Article
  12. 3072

    Free vibration analysis of aluminum foam metal sandwich panels: a comparative study between numerical and analytical modelling by Zahra Hamdan, Sadeq Bakhy, Muhsin Jweeg

    Published 2025-01-01
    “…The panels consist of an aluminum foam core sandwiched between two aluminum sheets, offering a lightweight yet structurally robust solution, making them ideal for applications in the aerospace and automotive industries. A mathematical model based on classical plate theory (CPT) was developed to compute the natural frequencies of supported rectangular sandwich plates. …”
    Get full text
    Article
  13. 3073

    Solving geocryology problems based on generalized Fourier theory for temperature waves in half-space by Anatoliy M. Afanasyev, Yulia S. Bakhracheva

    Published 2024-12-01
    “…Lykov’s theory, a spatially one-dimensional mathematical model of the processes of heat and moisture propagation in a homogeneous half-space, the boundary of which is in a state of heat and mass exchange with an airless medium, has been developed. …”
    Get full text
    Article
  14. 3074

    Numerical Simulation of Gas–Liquid–Solid Three-Phase Erosion in a Gas Storage Tank Tee by Zongxiao Ren, Chenyu Zhang, Zhaoyang Fan, Yanfei Ren

    Published 2025-01-01
    “…In accordance with the principles of the multiphase flow theory, the particle discrete phase model, high temperature, high pressure, water volume fraction, and other pertinent factors, this paper presents a three-phase gas–liquid–solid erosion mathematical model of a three-way gas storage reservoir. …”
    Get full text
    Article
  15. 3075
  16. 3076
  17. 3077
  18. 3078
  19. 3079

    A Comprehensive Review of Direction-of-Arrival Estimation and Localization Approaches in Mixed-Field Sources Scenario by Amir Masoud Molaei, Bijan Zakeri, Seyed Mehdi Hosseini Andargoli, Muhammad Ali Babar Abbasi, Vincent Fusco, Okan Yurduseven

    Published 2024-01-01
    “…Furthermore, we delve into the mathematical modeling of mixed-field sources and essential signal processing techniques for parameter estimation. …”
    Get full text
    Article
  20. 3080

    Energy efficiency potential determination for an oil treatment and stabilization unit at the field by Leonid M. Ulyev, Mikhail N. Chernyshov

    Published 2025-01-01
    “…Pinch analysis methods are used to determine the target values of an energy-efficient retrofit project. Mathematical modeling of heat exchange processes in the heat exchange network and economic analysis were performed using the Pinch 2.02 software; the Aspen HYSYS software package was used to create a simulation engineering model of the oil preparation and stabilization units. …”
    Get full text
    Article