Showing 701 - 720 results of 3,553 for search 'different threshold methods', query time: 0.15s Refine Results
  1. 701

    Image based quantification method reveals differential patterns of lip desquamation associated with age and sex by Hanji Kim, Jung Yeon Seo, Sangseob Leem, Seung Won You, Yunkwan Kim, Nae Gyu Kang

    Published 2025-04-01
    “…In this study, we aimed to quantify lip desquamation from facial images in a total of 55 participants and compare the results to those obtained from the tape-stripping method. The central region of the lower lip was extracted from each facial image, and global thresholding was applied using the threshold value T, which is defined as Mean + 2.5 SD. …”
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  2. 702

    A Method of Modal Parameter Identification for Wind Turbine Blade Based on Binocular Dynamic Photogrammetry by Wenyun Wang, Xuejun Li, Anhua Chen

    Published 2019-01-01
    “…Hankel matrixes are reconstructed with different dimensions, so different modal parameters are produced. …”
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  3. 703
  4. 704

    Solar Irradiance Ramp Classification Using the IBEDI (Irradiance-Based Extreme Day Identification) Method by Llinet Benavides Cesar, Oscar Perpiñán-Lamigueiro

    Published 2025-01-01
    “…The strength of the proposed method relies on that it allows its generalization to any dataset. …”
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  5. 705

    Study of aging life for EMU arresters based on aging tests and principal component analysis method by LI Ying, SONG Yanjun, XU Yuqi, LIU Kai, CHEN Kui, GAO Guoqiang

    Published 2024-09-01
    “…Additionally, an aging life model was established using the principal component analysis method for these arresters. The results show that the calculated evaluation value of the failure thresholds for the five performance parameters of the arresters reach 82 after standardized processing, indicating a service capacity of up to 7.5 million kilometers for new on-board arresters. …”
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  6. 706

    Gender differences in the association between the triglyceride-glucose index and peripheral artery disease in vascular surgery inpatients aged 50 and above: a retrospective cross-s... by Zhi-wei Li, Zhi-wei Li, Peng Zhou, Peng Zhou, Bei-hao Shi, Ya-qin Gong, Ke Lu, Ke Lu, Jian Zhu, Jian Zhu

    Published 2025-08-01
    “…In male patients, the TyGI showed a positive linear correlation with PAD, whereas in female patients, a positive nonlinear relationship was observed, with a threshold value of 9.68.ConclusionThis study demonstrates a significant positive association between TyGI and PAD in vascular surgery inpatients aged 50 and older, with a gender-specific difference in the nature of this relationship. …”
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  7. 707
  8. 708

    A New Logistic Distribution and Its Properties, Applications and PORT-VaR Analysis for Extreme Financial Claims by Piotr Sulewski, Morad Alizadeh, Jondeep Das, Gholamhossein G. Hamedani, Partha Jyoti Hazarika, Javier E. Contreras-Reyes, Haitham M. Yousof

    Published 2025-06-01
    “…A comprehensive financial risk assessment is conducted using multiple actuarial risk measures: Peaks Over Random Threshold Value-at-Risk, Value-at-Risk, Tail Value-at-Risk, the risk-adjusted return on capital and the Mean of Order P. …”
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  9. 709

    Comparing Jaffe and Enzymatic Methods for Creatinine Measurement at Various Icterus Levels and Their Impacts on Liver Transplant Allocation by Neda Soleimani, Sima Dehghani, Mohammad Hossein Anbardar, Sahand Mohammadzadeh, Elaheh Amirinezhad Fard, Atefeh Zare Sheibani, Mohammad Javad Esmaeili, Marsa Ebrahimi

    Published 2023-01-01
    “…In icteric samples, the enzymatic method produced higher results for the creatinine concentrations than the Jaffe method did, and the mean creatinine difference rose from 0.08 in nonicteric group to 1.95 in groups with severe icterus. …”
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  10. 710

    Nonlinear association between weekend sleep recovery (WSR) and insulin resistance: benefits in males and short weekday sleepers by Haidong Wang, Xiaohui Wei, Yudong Ba, Haiyan Liu, Yanhui Zhou, Weibo Wang, Lisheng Zheng

    Published 2025-07-01
    “…We used multivariable linear regression, stratified subgroup analyses (by sex, weekday sleep duration ≤7 vs >7 h, and different age groups), threshold effect modeling, and interaction analysis to assess associations. …”
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  11. 711

    Rainfall-induced Landslide Susceptibility Prediction Considering Spatial Heterogeneity by ZHANG Xingfu, JIANG Yuanjun, ABI Erdi

    Published 2025-07-01
    “…These findings highlighted the importance of integrating spatial heterogeneity in susceptibility modeling. Dynamic Rainfall Threshold Model (DRT): The DRT model further enhanced accuracy by effectively distinguishing the effects of different rainfall intensities. …”
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  12. 712
  13. 713

    A Composite Vision-Based Method for Post-Assembly Dimensional Inspection of Engine Oil Seals by Yu Li, Jing Zhao, Xingyu Gao, Weiming Li, Rongtong Jin, Guohao Tang, Yang Huang, Shuibiao Chen

    Published 2025-03-01
    “…To achieve accurate positioning of the inner and outer ring regions of the oil seals, the process begins with obtaining the center point and the major and minor axes through ellipse fitting, which is performed using progressive template matching and the least squares method. After scaling the ellipse along its axes, the preprocessed image is segmented using the peak–valley thresholding method to generate an annular ROI (region of interest) mask, thereby reducing the complexity of the image. …”
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  14. 714

    Online Analysis of Nonlinear Vibration Characteristics of Milling Chatter by WU Shi, WANG Yang-yang, LIU Xian-li, XU Hong, LI Rong-yi

    Published 2018-02-01
    “…The threshold of permutation entropy is also different. …”
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  15. 715

    Comparative efficacy of different exercise types on body composition in university students: a systematic review and meta-analysis of randomized controlled trials by Jihai Li, Liuhong Zang, Sihai Hao, Hui Wang

    Published 2025-04-01
    “…The optimal exercise dosage for enhancing body composition was identified as 1,300 METs-min/week, with the threshold for a significant effect being relatively low.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD42024587032…”
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  16. 716

    Accuracy assessment of land surface temperature retrievals from remote sensing imagery: pixel-based, single and multi-channel methods by A Sediyo Adi Nugraha, Muhammad Kamal, Sigit Heru Murti, Wirastuti Widyatmanti

    Published 2024-12-01
    “…MCM with the NDVI threshold method (NDVITHM) showed excellent results in distinguishing between vegetation and non-vegetation objects. …”
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  17. 717

    BA-ELM Gear Fault Diagnosis Method based on Energy Feature of Wavelet Packet Optimal Node by Qin Bo, Liu Yongliang, Wang Jianguo, Qin Yan, Yang Yunzhong

    Published 2016-01-01
    “…In order to solve the problems that gear fault classification model has weak generalization ability,poor accuracy causing by the fault features of gear is difficult to extract and extreme learning machine input weights and threshold of hidden layer nodes randomly selected,a BA- ELM gear fault diagnosis method is puts forward based on energy feature of wavelet packet optimal nodes.First,the gear vibration signals are decomposed by using wavelet packet in this method,the optimal nodes is selected by using the correlation coefficient between each node decomposition signals and original signal,and the energy feature is calculated.Second,the bat algorithm is used to optimize the extreme learning machine input weights and threshold of hidden layer node and the gear fault classification model of BA-ELM is established.Finally,the energy entropy feature vectors of the optimal wavelet packet nodes as the model input is used to identify the different fault states of gear.The experimental results show that,comparing with SVM and ELM fault classification method,the BA-ELM gear fault diagnosis method based on energy feature of wavelet packet optimal nodes has higher classification accuracy and better generalization ability.…”
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  18. 718

    Non-linear relationships and interaction effects between different types of screen time and mental health issues among Hong Kong adolescents by Qian Li, Kylie Kai-yi Chan, Miguel R. Ramos, Xin Wang, Samuel Yeung-shan Wong, Xue Yang

    Published 2025-03-01
    “…Background: Non-linear relationship of different types of screen time with adolescent mental health problems remains unclear. …”
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  19. 719

    Study on Time Domain Early Warning Method for Vibration Monitoring of Dynamic Imbalance of Train Cardan Shaft by Guoliang SONG, Guodong LI, Qingli HAN, Litong CUI, Yi LYU

    Published 2019-03-01
    “…This paper studied the time domain early warning method of dynamic unbalance of cardan shaft by monitoring the abnormal vibration of gearbox, explored the time domain early warning parameters according to the long-term track test, established the time domain early warning model of vibration of cardan shaft-gear box end;established the finite element model of transmission system by using finite element method, and studied the vibration response relationship of cardan shaft with different dynamic unbalance values at different rotational speeds at the gear box end. …”
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  20. 720

    A Robust Multi‐Objective Pressure Sensor Placement Method for Burst Detection in Water Distribution Systems by Kun Du, Jinxin Yu, Feifei Zheng, Wei Xu, Dragan Savic, Zoran Kapelan

    Published 2024-08-01
    “…Within this method, a new threshold metric is introduced to quantify the minimum detectable burst outflow across all pipes. …”
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