Showing 261 - 280 results of 800 for search 'dynamic sampling operator', query time: 0.12s Refine Results
  1. 261

    Research on the mechanism of the two-dimensional ultrasonic surface burnishing process to enhance the wear resistance for aluminum alloy by Zhen-Yu Zhou, Qiu-Yang Zheng, Yu Li, Cong Ding, Guang-Jian Peng, Zhong-Yu Piao

    Published 2023-12-01
    “…The effect of the gradient nanostructure on the wear resistance is explored by developing the crystal plasticity (CP) finite element and molecular dynamics (MD) models. The characterization results show that the 2D-USBP sample prepared a gradient structure of ∼600 µm thick on the aluminum surface, increasing the surface hardness from 1.13 to 1.71 GPa and reducing the elastic modulus from 78.84 to 70.14 GPa. …”
    Get full text
    Article
  2. 262
  3. 263
  4. 264

    DEEP-SEA LANDING VEHICLE SHAPE DRAG ANALYSIS AND BOW MODELED LINE OPTIMIZATION DESIGN (MT) by ZHANG ZiYao, ZHOU Yue, SUN Yu, LAN YanJun, GUO Wei

    Published 2023-01-01
    “…Based on the computational fluid dynamics, a numerical model of deep-sea landing vehicle was established to meet the requirements of deep-sea landing vehicle for large scale and long period submarine operation. …”
    Get full text
    Article
  5. 265

    Current State and Development Prospects of the Russian Factoring Market (Brief Statistical Analysis) by Lyubov Yu. Arkhangelskaya, Viktor N. Salin

    Published 2021-08-01
    “…On average, according to sample data for 2011 -2019 the annual growth rate of the volumes of financing of accounts payable and receivable of companies in Russia due to factoring operations increased by 20%, which in absolute terms amounted to 303.3 billion rubles, and reached by 2019 - 3.5 trillion rubles.However, there is still no established definition of this economic category in the Civil Code of the Russian Federation. …”
    Get full text
    Article
  6. 266

    Seasonal Mathematical Model of Salmonellosis Transmission and the Role of Contaminated Environments and Food Products by Mohammed H. Alharbi, Fawaz K. Alalhareth, Mahmoud A. Ibrahim

    Published 2025-01-01
    “…The model explores how bacterial growth, shedding, and ingestion rates, along with contamination pathways, determine disease dynamics. Some analytical derivations of the basic reproduction number (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi mathvariant="script">R</mi><mn>0</mn></msub></semantics></math></inline-formula>) and threshold conditions for disease persistence or extinction are derived by using the spectral radius of a linear operator associated with the monodromy matrix. …”
    Get full text
    Article
  7. 267

    Statistically elucidated responses from low-signal contrast mechanisms in ultrafast electron microscopy by Spencer A. Reisbick, Alexandre Pofelski, Myung-Geun Han, Chuhang Liu, Eric Montgomery, Chunguang Jing, Kayla Callaway, John Cumings, June W. Lau, Yimei Zhu

    Published 2025-05-01
    “…Here, we demonstrate a new algorithm designed to separate ultrafast structural dynamics from long-term artifacts using a LiNbO3 sample experiencing electrically driven surface acoustic wave propagation. …”
    Get full text
    Article
  8. 268

    Digital transformation in market research in Peru by Paulo César Callupe-Cueva, Augusto Aliaga-Miranda, Luis Ricardo Flores-Vilcapoma, Christian Efrain Raqui-Ramirez, Bernabé Teodoro Vila-Hinojo, Wilmar Salvador Chavarry-Becerra

    Published 2025-08-01
    “…Future studies should employ longitudinal designs and larger samples across multiple regions to validate and extend these results. …”
    Get full text
    Article
  9. 269
  10. 270
  11. 271
  12. 272
  13. 273
  14. 274
  15. 275
  16. 276
  17. 277
  18. 278

    AAD-YOLO: An Improved YOLOv8 Model for Complex Remote Sensing Scenarios by Yue Hong, Yi Shu, Shuo Guo

    Published 2025-01-01
    “…To address these challenges, we propose the Adaptive Architecture for Detection with Edge Awareness and Dynamic Upsampling (AAD-YOLO). Inspired by the Sobel operator, we designed the C2f-based Adaptive Instance Enhancement Block (CAIEB) to improve the fusion of spatial and edge information. …”
    Get full text
    Article
  19. 279

    SWMD-YOLO: A Lightweight Model for Tomato Detection in Greenhouse Environments by Quan Wang, Ye Hua, Qiongdan Lou, Xi Kan

    Published 2025-06-01
    “…Traditional down-sampling is replaced with a dynamic sample (DySample) operator to minimize information loss during resolution transitions, while a multi-scale convolutional attention (MSCA) mechanism prioritizes discriminative regions under varying illumination. …”
    Get full text
    Article
  20. 280

    Cloud service composition optimization based on service association impact and improved NSGA-II algorithm by Chong Zhang, Longge Wang, Ketai He

    Published 2025-07-01
    “…To efficiently solve this model, we propose an enhanced NSGA-II algorithm with the following key improvements: (1) Good point set-based population initialization, integrating good point sets and random sampling to enhance solution diversity and search efficiency. (2) Reverse learning-based crossover operator, designed to improve exploration capability and prevent premature convergence. (3) Adaptive dynamic elitism strategy, which dynamically adjusts the elite retention ratio and adaptively incorporates local search operators to balance convergence and diversity. …”
    Get full text
    Article