Showing 461 - 480 results of 3,553 for search 'different threshold (method OR methods)', query time: 0.20s Refine Results
  1. 461

    Research on Stress Threshold of Deep Buried Coal Rock under Quasi-Static Strain Rate Based on Acoustic Emission by Qijun Hao, Xiaohui Liu, Ankui Hu, Yu Zheng, Xiaoping Zhao

    Published 2020-01-01
    “…Based on stage characteristics of acoustic emission energy, spatial distribution, and damage evolution, the use of damage evolution curve to determine stress threshold is proposed. In order to verify the rationality of the damage evolution method, the stress threshold values determined by damage evolution method and existing method are compared and analyzed. …”
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  2. 462
  3. 463

    Computer Vision-Based Concrete Crack Identification Using MobileNetV2 Neural Network and Adaptive Thresholding by Li Hui, Ahmed Ibrahim, Riyadh Hindi

    Published 2025-02-01
    “…A dataset including 40,000 images was adopted and preprocessed using various thresholding techniques, of which adaptive thresholding was selected for developing the crack evaluation algorithm. …”
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  4. 464

    Research on the Nonlinear and Interactive Effects of Multidimensional Influencing Factors on Urban Innovation Cooperation: A Method Based on an Explainable Machine Learning Model by Rui Wang, Xingping Wang, Zhonghu Zhang, Siqi Zhang, Kailun Li

    Published 2025-03-01
    “…Key results are summarized as follows: (1) Urban innovation cooperation exhibits different phased characteristics. (2) There exist nonlinear and interactive effects between urban innovation cooperation and multidimensional factors, among them, the Scientific and Technological dimension contributes the most (30.59%) and has the most significant positive promoting effect in the later stage after surpassing a certain threshold. …”
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  5. 465

    Comparison among T1-Weighted Magnetic Resonance Imaging, Modified Dixon Method, and Magnetic Resonance Spectroscopy in Measuring Bone Marrow Fat by Wei Shen, Xiuqun Gong, Jessica Weiss, Ye Jin

    Published 2013-01-01
    “…The inhomogeneous distribution of bone marrow fat, the threshold segmentation of the T1-weighted MRI, and the ambiguity of the FFMRI may partially explain the difference among the three methods.…”
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  6. 466

    MtAD-Net: Multi-Threshold Adaptive Decision Net for Unsupervised Synthetic Aperture Radar Ship Instance Segmentation by Junfan Xue, Junjun Yin, Jian Yang

    Published 2025-02-01
    “…A Local U-shape Feature Extractor (LUFE) is designed to project each pixel of SAR images into a high-dimensional feature space, and a Global Vision Transformer Encoder (GVTE) is designed to obtain global features, and then, we use the global features to obtain a probability vector, which is the probability of each CFAR threshold. We further propose a PLC-Loss to adaptively reduce the feature distance of pixels of the same category and increase the feature distance of pixels of different categories. …”
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  7. 467

    Improved Crystalline Quality of AlN by Epitaxial Lateral Overgrowth Using Two-Phase Growth Method for Deep-Ultraviolet Stimulated Emission by Xiang Chen, Jianchang Yan, Yun Zhang, Yingdong Tian, Yanan Guo, Shuo Zhang, Tongbo Wei, Junxi Wang, Jinmin Li

    Published 2016-01-01
    “…Compared with the single low V/III ratio growth, the two-phase growth method can lead to a coherent coalescence at the second growth stage and hence suppress new dislocations generating at the coalescence fronts. …”
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  8. 468

    Machine learning approach for identifying and forecasting streamflow droughts in data limited basins of South Korea using threshold levels by Young-Ho Seo, Jang Hyun Sung, Byung-Sik Kim, Junehyeong Park

    Published 2025-05-01
    “…Models were developed and tested using inflow data and meteorological variables from four major South Korean dams. The Threshold Level Method (TLM) was applied to daily inflow data to define drought events, creating a time series for model training. …”
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  9. 469

    An indoor Wi-Fi access points localization algorithm based on improved path loss model parameter calculation method and recursive partition by Wenyan Liu, Xiangyang Luo, Qing Mu, Yimin Liu, Fenlin Liu

    Published 2019-05-01
    “…The algorithm recursively partitions the region where the target Wi-Fi access points are located according to the idea of quadtree partition, and partitions it into same sub-grids, which is sequentially performed until the sub-grids are smaller than the set threshold. The detection device is used at the detection location of the grids to measure the received signal strength, which is from the detection points to the target access point, the grid center point is used as the location of the candidate target access point, the parameters in the path loss model are calculated by using the signal strength differences between the detection points, and then the distances between the detection points and the target access point are calculated by using the signal strength values from the detection points to the target access point. …”
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  10. 470

    BIA-derived muscle indicator thresholds for malnutrition risk prediction in children with β-thalassemia: a cross-sectional study by Luyang Zhang, Jiewen Long, Li Wang, Lijuan Zhang, Yanlan Yang, Sandip Patil

    Published 2025-02-01
    “…The findings suggest that these thresholds could serve as effective references to assess nutritional status across different age groups, providing new perspectives for personalized nutritional management strategies.…”
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  11. 471

    Promoting Help-Seeking in Response to Symptoms amongst Primary Care Patients at High Risk of Lung Cancer: A Mixed Method Study. by Richard Wagland, Lucy Brindle, Sean Ewings, Elizabeth James, Mike Moore, Carol Rivas, Ana Ibanez Esqueda, Jessica Corner

    Published 2016-01-01
    “…Interviews (n = 39) indicated three overarching differences between the views of consulting and non-consulting participants: concern over wasting their own as well as GP time; high tolerance threshold for symptoms; a greater tendency to self-manage symptoms.…”
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  12. 472

    The Restorative Effects of Three Commonly Used Materials on Hearing Thresholds in Patients with Austin-Kartush Type A Ossicular Defects by Harun Gür, Kemal Koray Bal, Kemal Görür, Onur İsmi, Yusuf Vayısoğlu, Cengiz Özcan

    Published 2022-12-01
    “…Materials and Methods: This retrospective study includes 79 patients with the Austin-Kartush type A defect due to COM. …”
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  13. 473

    A subregional shallow water bathymetry derivation method for coral reef using ICESat-2 and Sentinel-2 combined with sediment information by Caixiang Xu, Xiaoguang Ruan, Chenhan Shen, Zixin Tao, Xiaohan Xu, Jiangnan Zheng, Weijiang Wu

    Published 2025-08-01
    “…Then, the sediment pixel information is counted, and the coral reef area is divided into three sub-regions of high, medium and low reflection by threshold segmentation method. Finally, combined with ICESat-2 and Sentinel-2 data, the improved subregional satellite-derived bathymetry model is constructed to obtain the shallow bathymetry results. …”
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  14. 474
  15. 475

    Spatial Spillover Effects of Digital Infrastructure on Food System Resilience: An Analysis Incorporating Threshold Effects and Spatial Decay Boundaries by Yani Dong, Chunjie Qi, Cheng Gui, Yueyuan Yang

    Published 2025-04-01
    “…The grain system resilience index is measured using the entropy method. A spatial Durbin model is employed to estimate the impact of digital infrastructure on grain system resilience, and a panel threshold model is used to analyze the nonlinear effects of digital infrastructure on grain system resilience. …”
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  16. 476

    Threshold haemoglobin levels and the prognosis of stable coronary disease: two new cohorts and a systematic review and meta-analysis. by Anoop D Shah, Owen Nicholas, Adam D Timmis, Gene Feder, Keith R Abrams, Ruoling Chen, Aroon D Hingorani, Harry Hemingway

    Published 2011-05-01
    “…Women tended to have lower threshold haemoglobin values (e.g, for MI 12.8 g/dl; 95% CI 12.1-13.5) but the shape and strength of association did not differ between the genders, nor between patients with angina and MI. …”
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  17. 477

    Contextual and placebo effects of suboccipital myofascial release: evaluating its influence on pain threshold, cervical range of motion, and proprioception by Ertuğrul Safran, Yaren Kaya

    Published 2025-05-01
    “…Methods A single-blind, sham-controlled randomized study was conducted with 30 asymptomatic participants (15 per group). …”
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  18. 478

    The Effectiveness of Sub-Threshold Laser Versus Spironolactone for The Treatment of Central Serous Chorioretinopathy: A Systematic Review and Meta-Analysis by Amber Khalid, Aveen Fatima, Quratulain Saleem

    Published 2025-04-01
    “…Methods: A comprehensive search was conducted using PubMed, Cochrane, EMBASE, and Google Scholar for randomized controlled trials comparative and individual studies on spironolactone and sub-threshold laser in the treatment of CSCR. …”
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  19. 479

    Pain thresholds in elderly individuals: a cross-sectional observational study of the influence of gender and chronic non-cancer pain by Áquila Lopes Gouvêa, Pedro Adde Anuardo, João Paulo Consentino Solano, Ângela Maria Sousa, Hazem Adel Ashmawi

    Published 2025-09-01
    “…Methods: This was a cross-sectional observational study with a convenience sample in the outpatient clinic at two research centers. …”
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  20. 480

    Optimal threshold of time interval from symptom onset to diagnosis for identification of severity and outcomes in acute symptomatic pulmonary embolism by Wei Xiong, Qiangqiang Qin, Xiaoyang Song, Zhenzhong Deng, Mei Xu, Dongmei Wang, Qihuan Yao, Jianmin Qu, Yong Luo, Fengfeng Han

    Published 2025-12-01
    “…Nevertheless, it is not known how many days of OTD is the optimal threshold for the identification of severe PE or what differences exist in outcomes among PE patients classified by this threshold.Methods Patients with acute symptomatic PE were retrospectively studied to determine the optimal OTD threshold for identifying the severity and outcomes of PE. …”
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