Showing 21,441 - 21,460 results of 22,513 for search '"mathematics"', query time: 0.11s Refine Results
  1. 21441

    RETRACTED ARTICLE: Multiclass skin lesion classification using deep learning networks optimal information fusion by Muhammad Attique Khan, Ameer Hamza, Mohammad Shabaz, Seifeine Kadry, Saddaf Rubab, Muhammad Abdullah Bilal, Muhammad Naeem Akbar, Suresh Manic Kesavan

    Published 2024-05-01
    “…The dataset used in this work, ISIC2018, is imbalanced; therefore, augmentation is performed based on a few mathematical operations. After that, two pre-trained deep learning models (DarkNet-19 and MobileNet-V2) have been fine-tuned and trained on the selected dataset. …”
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    Article
  2. 21442

    Structural and Economic Approach to the Selection of Peak Regulating Capacities at Thermal Power Plants by E. V. Bohdan, M. B. Karnitski

    Published 2023-12-01
    “…A generalized desirability function has been obtained, which includes a number of parameters for choosing a rational relationship and mutual influence between the reliability and efficiency of electricity production with the participation of thermal power plant equipment in regulating the daily load schedule. The proposed mathematical model is an effective means of analyzing the suitability of equipment for use in the required operating modes.…”
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    Article
  3. 21443

    Importance of underlying mechanisms for interpreting relative risk of Clostridioides difficile infection among antibiotic-exposed patients in healthcare facilities. by Christopher Mitchell, Lindsay T Keegan, Thuy T T Le, Karim Khader, Alexander Beams, Matthew H Samore, Damon J A Toth

    Published 2024-01-01
    “…Here, we model C. difficile transmission and CDI among hospital inpatients, including exposure to high-CDI-risk antibiotics and their effects on each stage of CDI epidemiology. We derive the mathematical relationship, using a deterministic model, between those parameters and observed equilibrium levels of colonization, CDI, and risk ratio of CDI among certain antibiotic-exposed patients relative to patients with no recent antibiotic exposure. …”
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    Article
  4. 21444

    Two-Echelon Pickup and Delivery Problem Using Public Transport in City Logistics by Shuai Wang, Xiaoning Zhu, Pan Shang, Wenqian Liu, Xiao Lin, Lóránt Tavasszy

    Published 2024-01-01
    “…We formulate a new mathematical model based on a space-time network and adopt an adaptive large neighborhood search (ALNS) algorithm for the 2E-PDP-PT. …”
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    Article
  5. 21445

    RESEARCH ON ADAPTABILITY AND RELIABILITY OF DESIGN FORMULAS IN PRESSURE EQUIPMENT PRESSURE by LIU Cen, WU SengLin, YANG Fan, HONG Kai, ZHANG Shu, LIU XiaoNing

    Published 2021-01-01
    “…In order to provide the basis for selecting suitable design formula of pressure equipment strength,and to establish the reliability method of pressure equipment strength design,the ratio of the flat winding vessel burst pressure actual value to the formula calculated value was considered as a random variable. applied mathematical statistics and probability theory,the validity and homogeneity of random variables statistical samples were discussed,the random variables distribution law was analyzed,the comparison method of random variables distribution parameters was constructed. …”
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    Article
  6. 21446

    On Vaccination Strategies for a SISV Epidemic Model Guaranteeing the Nonexistence of Endemic Solutions by S. Alonso-Quesada, M. De la Sen, R. Nistal

    Published 2018-01-01
    “…Such theoretical results are mathematically proved and, also, they are illustrated by means of simulation examples. …”
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    Article
  7. 21447

    Estimating the Force of Infection with Helicobacter pylori in Japan by Taishi Kayano, Ki-Deok Lee, Hiroshi Nishiura

    Published 2019-01-01
    “…The present study employed mathematical models to estimate the time- and age-dependent force of infection with H. pylori in Japan, predicting the future seroprevalence by time and age. …”
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    Article
  8. 21448

    A BIM-Based Study on the Comprehensive Benefit Analysis for Prefabricated Building Projects in China by Yingbo Ji, Siwei Chang, Yuan Qi, Yan Li, Hong Xian Li, Kai Qi

    Published 2019-01-01
    “…However, there is a lack of an appropriate pattern for evaluating its comprehensive economic merits, and reasonable mathematical models for providing a comparative analysis of conventional cast-in-situ and prefabricated building projects have yet to be developed. …”
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    Article
  9. 21449

    Simulation modeling tools in training environmental science students by А. G. Kot, A. B. Achasov, O. Yu. Seliverstov, V. G. Karpov

    Published 2024-07-01
    “…Students are provided with the opportunity to create and study various scenarios using mathematical models. Students are encouraged to create and investigate the "Predator Prey" model, which is based on the Volterra-Lotka system of differential equations. …”
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    Article
  10. 21450

    Single stage auction clearing model for electricity market considering congestion by R.R. Lekshmi, S. Balamurugan

    Published 2025-03-01
    “…The approach involves modelling of the market clearing mechanism as an optimization problem with the aim of maximizing the producer and consumer surplus, meeting the power equilibrium while maintaining the line power flows within the limit. A generalized mathematical model of the problem is formulated in MATLAB Live editor and deployed on an IEEE 5-bus system, while considering two different line limit conditions. …”
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    Article
  11. 21451

    Application of Neural Network in the Stability of Biped Robot and Embedded Control of Walking Mode by Jianrui Zhang, Zhaohui Yuan, Huan Geng, Sheng Dong, Fuli Zhang, Jingchao Li

    Published 2022-01-01
    “…A method of establishing precise mathematical modeling and stability analysis is proposed. …”
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    Article
  12. 21452

    Beam steering by two vertically faced metasurfaces using polarization free unit cells with three operating modes by Mohammadreza Jahangiri, Hossein Soleimani, Mohammad Soleimani

    Published 2025-01-01
    “…The unit cell in the nonplanar metasurface is composed of two vertical surfaces. A mathematical model is used to analyze two vertically-faced metasurfaces. …”
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    Article
  13. 21453

    Theoretical system of levels of constructing vehicle movement of ground urban electric transport vehicle by Aukhadeev A. E.

    Published 2024-12-01
    “…A theoretical system of levels of vehicle motion construction as a multilevel process has been formulated, mathematical models of each level have been identified, and sets of conditions characterizing "external" and "internal" "order parameters" defining hierarchical interlevel interrelations have been determined. …”
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    Article
  14. 21454

    Modeling and robust control of a parallel robotic mechanism driven by linear actuators based on shape memory alloys by Alejandro Guarneros-Sandoval, Mariana Ballesteros, Rita Q. Fuentes-Aguilar, Isaac Chairez

    Published 2025-03-01
    “…Based on the temperature derivative, a hybrid mathematical actuator model characterizes the relationship between the temperature and force. …”
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    Article
  15. 21455

    Evolution of parasite transmission dispersion by Hannelore MacDonald, Sebastian Bonhoeffer, Roland Regoes

    Published 2025-01-01
    “…This study considers whether increased transmission dispersion can be, in part, an emergent property of parasite adaptation to heterogeneous host populations. We develop a mathematical model using a Price equation framework to address this question that follows the epidemiological and evolutionary dynamics of a general host–parasite system. …”
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    Article
  16. 21456

    The Role of Migration in Maintaining the Transmission of Avian Influenza in Waterfowl: A Multisite Multispecies Transmission Model along East Asian-Australian Flyway by Akira Endo, Hiroshi Nishiura

    Published 2018-01-01
    “…However, the role of long-distance migration in multispecies transmission dynamics has yet to be understood. We constructed a mathematical model to capture the global dynamics of avian influenza, identifying species and locations that contribute to sustaining transmission. …”
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    Article
  17. 21457

    Application of quantitative protein mass spectrometric data in the early predictive analysis of membrane-bound target engagement by monoclonal antibodies by Armin Sepp, Morris Muliaditan

    Published 2024-12-01
    “…Model-informed drug discovery advocates the use of mathematical modeling and simulation for improved efficacy in drug discovery. …”
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    Article
  18. 21458

    Changes in the content of proteins and lipids and in the state of the antioxidant system in mutant forms of <i>Amaranthus cruentus</i> L. by R. M. Taipova, V. N. Nesterov, O. A. Rozentsvet, B. R. Kuluev

    Published 2022-04-01
    “…The Bradford assay was used to measure the content of total soluble protein, lipid analysis was performed by thin-layer chromatography, the state of the antioxidant system was assessed according to catalase and peroxidase activities and the rate of superoxide anion formation. Mathematical data were processed using the Statistica 10.0 software.Results. …”
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    Article
  19. 21459

    Investigating the Two Optimization Algorithms (GWO and ACO) Coupling with Radial Basis Neural Network to Estimate the Pile Settlement by Ehsanolah Assareh, Reza Poultangari

    Published 2023-03-01
    “…Theoretical ways to calculate the pile movement mathematically have been adopted to model the PS, mostly by using artificial intelligence (AI). …”
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    Article
  20. 21460

    Competing Ion Exchange of Zn and Fe in NaY Zeolite by Indianara C. Ostroski, João H. Dantas, Edson A. Silva, Pedro A. Arroyo, Maria A. S. D. Barros

    Published 2012-04-01
    “…This equilibrium model was then applied to a dynamic mathematical model. We describe the equilibrium in this model by assuming the binary Langmuir-type model and mass transfer in the zeolite based on the linear driving force model.…”
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    Article