Showing 361 - 380 results of 413 for search 'complex spatial randomness', query time: 0.12s Refine Results
  1. 361
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    Fracture identification and 3D reconstruction of coal-rock combinations based on VRA-UNet network by Dengke WANG, Longhang WANG, Yaguang QIN, Le WEI, Tanggen CAO, Wenrui LI, Lu LI, Xu CHEN, Yuling XIA

    Published 2025-02-01
    “…Firstly, the VGG16 module is used as the backbone feature extraction network to enhance the model’s generalization ability and prevent the initialization of model parameters from being too random. Secondly, to address the complex fracture topology and strong non-uniformity of coal-rock combinations, an attention module (ResCBAM) with spatial and channel dimensions is introduced into the up-sampling part to enhance the model's feature extraction ability and alleviate the problem of gradient disappearance. …”
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  3. 363

    Early Active Exercise Improves MDA, SOD, and GSH Levels without Memory or NO Changes in Wistar Rats by Muhammad Hafiz Zuhdi Fairof, Arimi Fitri Mat Ludin, Nur Diyana Anas, Ainaa Husna, Ahmad Muhaimin Che Hasan, Amirul Hafiz Ahmad Abdullah, Farah Wahida Ibrahim, Adriyan Pramono, Nor Fadilah Rajab

    Published 2025-08-01
    “…One key factor in oxidative stress is nitric oxide (NO), an enzyme complex that produces reactive oxygen species (ROS) as part of normal cellular signaling. …”
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  4. 364

    Predicting bone metastasis risk of colorectal tumors using radiomics and deep learning ViT model by Guanfeng Chen, Wenxi Liu, Yingmin Lin, Jie Zhang, Risheng Huang, Deqiu Ye, Jing Huang, Jieyun Chen

    Published 2025-04-01
    “…The ViT model’s strength lies in its ability to capture complex spatial relationships and long-range dependencies within the imaging data, which are often missed by traditional models. …”
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  5. 365
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    Human motor control during movements with high demands by Paul Kaufmann, Willi Koller, Elias Wallnöfer, Basilio Goncalves, Clara Scheer, Juliana Exel, Olivia Froschauer, Catherine Hlavac, Mathias Wiplinger, Lorenz Zweier, Arnold Baca, Hans Kainz

    Published 2024-09-01
    “…Subsequently, factorisation algorithms were employed to extract the spatial synergy vectors and time-varying activation coefficients for each participant. …”
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  7. 367

    Interrow cover crops in a semi-arid vineyard increase plant beneficial functional potential of the soil microbiome, both in vine rows and interrows, a benefit that increases with c... by Fernando Igne Rocha, Jean Carlos Rodriguez-Ramos, Margaret Fernando, Lauren Hale

    Published 2025-06-01
    “…However, the temporal and spatial effects of cover crops on vineyard soil microbiomes and soil health metrics remain poorly understood. …”
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    Article
  8. 368

    Efficient Region-Wise Packing of Stereoscopic ERP Videos Based on Information Loss Minimization by Hossein Pejman, Stephane Coulombe, Carlos Vazquez, Ahmad Vakili

    Published 2025-01-01
    “…Moreover, we propose a content-adaptive (CA) packing method for ERP videos, where the sizes of partitions, each with a particular horizontal downsampling factor, are adaptively determined based on spatial complexity. We then utilize a low-complexity frequency-domain approach to estimate the optimal partition sizes of the CA packing. …”
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  9. 369
  10. 370

    AGW-YOLO-Based UAV Remote Sensing Approach for Monitoring Levee Cracks by HU Weibo, ZHOU Shaoliang, ZHAO Erfeng, ZHAO Xueqiang

    Published 2025-01-01
    “…Attention weights are then generated to simultaneously fuse spatial and channel information, significantly improving the model's accuracy in identifying crack regions in levees, particularly under complex lighting and background interference. …”
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    Article
  11. 371

    Research on kd-tree Cache Optimization Based on Particle Index Sorting Algorithm by 张挺, 林震寰, 杨丁颖, 王宗锴, 陈轶凡

    Published 2024-01-01
    “…ObjectiveWhen utilizing <italic>kd-tree</italic> for large-scale random particle nearest neighbor search, particles with closely aligned index values within the computational domain may become spatially distant, resulting in significant variations in the<italic> kd-tree</italic> search path over a short time frame. …”
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  12. 372
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    From virtual to reality: application of a novel 3D printing hollow model for early-stage lung cancer in the clinical teaching of thoracoscopic sublobar resection by Di Yang, Di Yang, Yafei Miao, Yafei Miao, Linqian Li, Linqian Li, Linqian Li, Qing Yu, Qing Yu, Qiang Guo, Hefei Li, Xuguang Zhang, Shujie Cheng, Shujie Cheng, Jinghua Li, Jinghua Li, Ke Zhang, Ke Zhang, Ke Zhang, Ke Zhang

    Published 2025-05-01
    “…Survey feedback revealed that the 3DV group excelled in convenience (P &lt; 0.001), while the 3DP group demonstrated superiority in the ease of knowledge acquisition and understanding of vascular spatial relationships (P &lt; 0.001). No significant differences were found between the two groups regarding model intuitiveness and identification of the lung segment range influenced by the safety margin (P &gt; 0.05).ConclusionThe 3DP model, featuring a transparent hollow sublobar boundary, significantly improved comprehension of complex anatomical relationships and enhanced teaching outcomes in surgical skills. …”
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  14. 374

    Assessing the PM<sub>2.5</sub>–O<sub>3</sub> Correlation and Unraveling Their Drivers in Urban Environment: Insights from the Bohai Bay Region, China by Yan Nie, Yongxin Yan, Yuanyuan Ji, Rui Gao, Yanqin Ren, Fang Bi, Fanyi Shang, Jidong Li, Wanghui Chu, Hong Li

    Published 2025-04-01
    “…Results showed that PM<sub>2.5</sub>–O<sub>3</sub> correlation in Dongying exhibited significant seasonal variations, spatial patterns, and concentration threshold effects from 2017 to 2023. …”
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  15. 375

    Prediction of canopy mean traits in herbaceous plants by the UAV multispectral data: The quest for a better leaf-to-canopy upscaling method by Yuanqi Shan, Yunlong Yao, Lei Wang, Zhihui Wang, Huaihu Yi, Yi Fu, Weineng Li, Xuguang Zhang, Wenji Wang, Zhongwei Jing

    Published 2025-07-01
    “…The accuracy was evaluated by exploring the predictive ability for nine canopy mean traits by using high spatial resolution UAV multispectral data. The analysis focuses on a wetland ecosystem characterized by high species diversity and hydrological variability, where precise plant trait estimation is essential for ecological process modeling. …”
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  16. 376

    High-Speed Free-Space Optical Continuous Variable-Quantum Key Distribution Based on Kramers&#x2013;Kronig Scheme by Zhen Qu, Ivan B. Djordjevic

    Published 2018-01-01
    “…The atmospheric turbulence channel is emulated by three spatial light modulators on which three randomly generated azimuthal phase patterns yielding Andrews&#x2019; spectrum are recorded. …”
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    Impact of Subjective and Objective Green Space Characteristics on Mental Health Benefits: An Explainable Machine Learning Approach by Ke LI, Yipei MAO, Yongjun LI

    Published 2025-07-01
    “…Based on the SHAP values, the non-linear relationships between them are further clarified.ResultsThrough the analysis of 3 types of mental health benefits and 5 models, the LightGBM model outperforms other algorithms (such as Random Forest and XGBoost) in terms of prediction accuracy (R 2: 0.523 – 0.642), with its robustness in capturing complex feature interactions being verified. …”
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  20. 380

    An Improved STC-Based Full Coverage Path Planning Algorithm for Cleaning Tasks in Large-Scale Unstructured Social Environments by Chao Wang, Wei Dong, Renjie Li, Hui Dong, Huajian Liu, Yongzhuo Gao

    Published 2024-12-01
    “…The proposed method innovatively introduces the concept of optimal backtracking points to sacrifice the spatial complexity of the algorithm to reduce its computational complexity. …”
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