Showing 1,021 - 1,040 results of 1,089 for search 'dynamic issues parameter', query time: 0.14s Refine Results
  1. 1021

    Polygenic prediction and gene regulation networks by Juan F. Poyatos

    Published 2025-05-01
    “…We establish connections between our results and concepts such as global sensitivity and local stability in dynamical systems, alongside the notion of sloppy parameters in biological models. …”
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  2. 1022

    Life quality in Russia: a brief overview by D. A. Ermilina

    Published 2022-05-01
    “…The main purpose of the study is to assess the key socio-economic parameters that affect the life quality in Russia. Methods of system analysis, classification and generalization were used in the study. …”
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    Article
  3. 1023

    Characterization and estimation of heterogeneous spatial autocorrelation in spatial autoregressive models. by Jing Zhao, Yue Pu

    Published 2025-01-01
    “…To estimate the model parameters, we combine spline methods with two-stage least squares, and we assess the model's performance under finite sample conditions under Monte Carlo simulations. …”
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  4. 1024

    Enhancing convolutional neural networks in electroencephalogram driver drowsiness detection using human inspired optimizers by Anupam Yadav, Rifat Hussain, Madhu Shukla, Jayaprakash B, Rishiv Kalia, S. Prince Mary, Chou-Yi Hsu, Manoj Kumar Mishra, Kashif Saleem, Mohammed El-Meligy

    Published 2025-03-01
    “…TLBO produced a simpler model with 4,145 parameters, whereas SPBO generated a more complex architecture with 264,065 parameters but completed optimization faster (116 vs. 148 min). …”
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  5. 1025

    Neural Network-Based State Estimation for a Closed-Loop Control Strategy Applied to a Fed-Batch Bioreactor by Santiago Rómoli, Mario Serrano, Francisco Rossomando, Jorge Vega, Oscar Ortiz, Gustavo Scaglia

    Published 2017-01-01
    “…The proposed methodology is applied to a class of nonlinear systems with three types of uncertainties: (i) time-varying parameters, (ii) uncertain nonlinearities, and (iii) unmodeled dynamics. …”
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  6. 1026
  7. 1027

    A New Approach for Free Vibration Analysis of Thin-Walled Box Girder Considering Shear Lag Effect by Zuolong Luo, Haoyun Yuan, Xirong Niu

    Published 2019-01-01
    “…The shear lag effect (SLE), an essential aspect of T-WBG which governs the stress and the deformation, is rather necessary to be revealed properly. The extraordinary issue of T-WBG analysis nowadays is the SLE impact on its dynamical response to external load. …”
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  8. 1028

    Elucidating relationships between P.falciparum prevalence and measures of genetic diversity with a combined genetic-epidemiological model of malaria. by Jason A Hendry, Dominic Kwiatkowski, Gil McVean

    Published 2021-08-01
    “…There is an abundance of malaria genetic data being collected from the field, yet using these data to understand the drivers of regional epidemiology remains a challenge. A key issue is the lack of models that relate parasite genetic diversity to epidemiological parameters. …”
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    Article
  9. 1029

    A Review of Machine Learning-Based Routing Protocols for Wireless Sensor Network Lifetime by Abhay R. Gaidhani, Amol D. Potgantwar

    Published 2024-02-01
    “…Wireless sensor networks (WSNs) grapple with a challenging and pivotal issue: how to maximize the network’s lifespan. To improve the quality of service (QoS) and extend the life of the network, there has been a lot of effort made in this area in recent years. …”
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  10. 1030

    A Procedure for Developing a Flight Mechanics Model of a Three-Surface Drone Using Semi-Empirical Methods by Stefano Cacciola, Laura Testa, Matteo Saponi

    Published 2025-06-01
    “…Aircraft and fixed-wing drones, designed to perform vertical take-off and landing (VTOL), often incorporate unconventional configurations that offer unique capabilities but simultaneously pose significant challenges in flight mechanics modeling, whose reliability strongly depends on the correct tuning of the inertial and aerodynamic parameters. Having a good characterization of the aerodynamics represents a critical issue, especially in the design and optimization of unconventional aircraft configurations, when, indeed, one is bound to employ empirical or semi-empirical methods, devised for conventional geometries, that struggle to capture complex aerodynamic interactions. …”
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  11. 1031

    Energy efficient multi hop clustering using Artificial Bee Colony metaheuristic in WSN by Shiwei Zhang, Xinghan Liu, Mohammad Trik

    Published 2025-07-01
    “…The protocol integrates three main mechanisms of region-based energy-aware clustering using network partitioning, optimized multi-hop communication paths, and a hierarchical tree structure for efficient data aggregation. ABC dynamically selects Cluster Heads (CHs) and routing paths based on key parameters including residual energy, transmission distance, Cluster Head Ratio (CR), and multi-objective weighting coefficients. …”
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  12. 1032

    Improving Water Table Kinematic Conditions With Unsaturated Flow Insights by Jun‐Hong Lin, Ying‐Fan Lin

    Published 2025-03-01
    “…The results demonstrate that the new water table condition provides more reliable estimates of specific yield, effectively addressing the underestimation issue associated with existing models. Moreover, the model requires no additional empirical parameters, making it a practical tool for characterizing unconfined aquifer properties.…”
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  13. 1033

    Research on the mechanism of human-machine security collaboration of miners considering automation trust by Juan Yang, Xue Yang, Shan Chai, Likun Ni, Xiao Wang, Langxuan Pan

    Published 2024-12-01
    “…Safety in the coal mining industry is a long-standing issue. With the implementation of intelligent construction in coal mines, humans–machine collaboration is critical to accident prevention. …”
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  14. 1034

    A design for terahertz-driven isolated sub-femtosecond electron pulses by Songyu Zhu, Yushan Zeng, Xieqiu Yu, Hui Zhong, Xuewen Fu, Liwei Song, Ye Tian, Zhizhan Xu

    Published 2025-01-01
    “…Isolated electron pulses are pivotal in resolving ultrafast dynamics, especially in the sub-optical-cycle regime. …”
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  15. 1035

    Analysis of implementing the Ukrainian healthcare reform in 2023 by Nataliia Sheliemina

    Published 2023-12-01
    “…The main research task is to study the issue of effectiveness of implementing the healthcare reform in Ukraine using the main levers of influence on the most significant items of expenditure in the medical industry itself. …”
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  16. 1036

    Estimation of winter barley varieties according to productivity and adaptability indicators in the conditions of the Lower Don by I. M. Zasypkina, E. G. Filippov

    Published 2023-03-01
    “…In order to study this issue, in 2020–2022 there was carried out a study to estimate the adaptability parameters of 20 winter barley varieties developed by the FSBSI “ARC “Donskoy” according to various forecrops (black fallow, peas, sunflower). …”
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  17. 1037

    YOLOv8-BaitScan: A Lightweight and Robust Framework for Accurate Bait Detection and Counting in Aquaculture by Jian Li, Zehao Zhang, Yanan Wei, Tan Wang

    Published 2025-06-01
    “…The key innovations are as follows: (1) By incorporating the channel prior convolutional attention (CPCA) into the final layer of the backbone, the model efficiently extracts spatial relationships and dynamically allocates weights across the channel and spatial dimensions. (2) The minimum points distance intersection over union (MPDIoU) loss function improves the model’s localization accuracy for bait bounding boxes. (3) The structure of the Neck network is optimized by adding a tiny-target detection layer, which improves the recall rate for small, distant bait targets and significantly reduces the miss rate. (4) We design the lightweight detection head named Detect-Efficient, incorporating the GhostConv and C2f-GDC module into the network to effectively reduce the overall number of parameters and computational cost of the model. …”
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  18. 1038
  19. 1039

    High precision and consistent machining of cylindrical rollers using ceramic lapping plates with both-sides machining method by Tianchen Zhao, Kaiping Feng, Luguang Guo, Binghai Lyu, Weifeng Yao, Junkai Ding, Julong Yuan

    Published 2025-05-01
    “…The principles of shape accuracy and consistency correction for rollers were analyzed, and the motion dynamics of the rollers during machining were simulated. …”
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  20. 1040

    Facial emotion based smartphone addiction detection and prevention using deep learning and video based learning by C. Joseph, P. Uma Maheswari

    Published 2025-05-01
    “…Abstract Smartphone addiction among students has emerged as a critical issue, negatively impacting their academic performance, emotional well-being, and social behavior. …”
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