Showing 241 - 260 results of 3,244 for search 'sample quantitative model', query time: 0.19s Refine Results
  1. 241

    Reference ranges of CT quantitative indexes based on paired inspiratory and expiratory chest CT in healthy Chinese adults: A community-based cohort study by Ziwei Zhang, Xiuxiu Zhou, Yi Xia, Qianxi Jin, Yu Guan, Taohu Zhou, Yueze Li, Shiyuan Liu, Li Fan

    Published 2025-06-01
    “…The reference range was obtained with the Lambda-Mu-Sigma model. Independent-sample t-test/one-way ANOVA analysis or Mann-Whitney test/Kruskal-Wallis test were conducted to compare mean values between different groups. …”
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  2. 242

    Staining and resin embedding of whole Daphnia magna samples for micro-CT imaging enabling 3D visualization of cells, tissues, and organs. by Mee S Ngu, Daniel J Vanselow, Andrew L Sugarman, Rachelle A Saint-Fort, Carolyn R Zaino, Maksim A Yakovlev, Keith C Cheng, Khai C Ang

    Published 2024-01-01
    “…Micro-CT imaging is a powerful tool for generating high-resolution, isotropic, three-dimensional datasets of whole, centimeter-scale model organisms. At histological resolutions, micro-CT can be used for whole-animal qualitative and quantitative characterization of tissue and organismal structure in health and disease. …”
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    A novel method for estimating pathogen presence, prevalence, load, and dynamics at multiple scales by John F. Grider, Bradley J Udell, Brian E. Reichert, Jeffrey T. Foster, William L. Kendall, Tina L. Cheng, Winifred F. Frick

    Published 2025-03-01
    “…To better estimate pathogen dynamics, we developed a hierarchical multi-scale dynamic occupancy hurdle model (MS-DOHM). The model used data gathered during sampling for Pseudogymnoascus destructans (Pd), the causative agent of white-nose syndrome, a fungal disease that has cause severe declines in several species of hibernating bats in North America. …”
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    Meta-Analysis of the Effect of Different Amounts of Cow Manure, Chemical (Nitrogen), and Biological Fertilizers on Some Quantitative and Qualitative Traits of Thyme (Thymus vulgari... by Havva Mahnoudi asl, Mahmoud Mokhtari, Reza Sadrabadi Haghighi, مهدی الهی ترشیزی

    Published 2025-09-01
    “…If there is heterogeneity between studies, the random effect model is used. I2index is one of the important indices in determining the degree of heterogeneity between studies.In general, the degree of heterogeneity in the I2index is determined in the following three ways: I2≤25% indicates low heterogeneity. 50 ≤I2≤ 75% indicates moderate heterogeneity; that is, half of the total variability among effect sizes is not due to sampling error and is due to heterogeneity between studies.and I2≥ 75% indicates high heterogeneity (Higgins & green, 2011)Among more than 60 domestic studies and 28 foreign studies. …”
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    Periods of high uncertainty: How fertility intentions in Russia changed during 2022–2023 by Elena Vakulenko, Dmitriy Gorskiy, Valeria Kondrateva, Ilya Trofimenko

    Published 2025-05-01
    “…The analysis is based on binary choice models (probit) and machine learning techniques (honest trees), which were applied to assess the heterogeneity of the sample. …”
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  12. 252

    What factors are associated with informal carers’ psychological morbidity during end-of-life home care? A systematic review and thematic synthesis of observational quantitative stu... by Tracey Shield, Kerin Bayliss, Alexander Hodkinson, Maria Panagioti, Alison Wearden, Jackie Flynn, Christine Rowland, Penny Bee, Morag Farquhar, Danielle Harris, Gunn Grande

    Published 2023-11-01
    “…The literature on this topic is diverse and difficult to summarise, and the field would benefit from a clearer direction of enquiry guided by explanatory models. Future research should (1) further investigate quality of relationships and finances; (2) better define factors under investigation; (3) establish, through quantitative causal analyses, why factors might relate to mental health; and (4) utilise longitudinal designs more to aid understanding of likely causal direction of associations. …”
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  13. 253

    FAULT DIAGNOSIS OF ROLLING BEARING BASED ON LEARNING SAMPLE SELECTION VIA CORRELATION ENERGY FLUCTUATION EVALUATION AND DEEP BELIEF NEURAL NETWORK (MT) by QIN Bo, LUO QuanYi, FENG WeiWei, ZHANG Peng, ZHAO ZhenHua, LI ZiXian, WANG Zhuo

    Published 2023-01-01
    “…The data-driven intelligent diagnosis of rolling bearing status suffers from low recognition rate due to the poor quality of learning samples in the process of identification model construction. …”
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  14. 254

    Foresight-based Business Model Design: Presentation and Validation of a Conceptual Model by Salman Hosseini Safa, Safar Fazli, Hakem Ghasemi, Ali Khaleghi

    Published 2025-03-01
    “…To validate the model, 12 people were selected as a sample from among the experts in futures studies and business management, who were the target community of the research. …”
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  15. 255

    Can laboratory-based XAFS compete with XRD and Mössbauer spectroscopy as a tool for quantitative species analysis? Critical evaluation using the example of a natural iron ore. by Sebastian Praetz, Christopher Schlesiger, Damian Alexander Motz, Stephen Klimke, Moritz Jahns, Christine Gottschalk, Lena Heinrich, Eva Maria Heppke, Wolfgang Malzer, Franz Renz, Carla Vogt, Birgit Kanngießer

    Published 2025-01-01
    “…While X-ray diffraction (XRD) is a commonly used method for quantification analysis using Rietveld refinement and quantitative Mössbauer spectroscopy is sporadically used primarily for iron speciation, laboratory X-ray Absorption Fine Structure Spectroscopy (lab-XAFS) is rarely applied for the quantitative determination of sample compositions. …”
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  16. 256

    CWMS-GAN: A small-sample bearing fault diagnosis method based on continuous wavelet transform and multi-size kernel attention mechanism. by Shun Yu, Zi Li, Jialin Gu, Runpu Wang, Xiaoyu Liu, Lin Li, Fusen Guo, Yuheng Ren

    Published 2025-01-01
    “…However, the quality of generated samples is closely related to the performance of fault diagnosis models. …”
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    Quantitative characterization of the multiscale mechanical properties of low-permeability sandstone roofs of coal seams based on nanoindentation and triaxial tests and its implicat... by Feng Cao, Jianhua He, Hongxiu Cao, Hucheng Deng, Andrew D. La Croix, Rui Jiang, Ruixue Li, Jiarun Li

    Published 2025-01-01
    “…The micro- and macroscale experiments were coupled with numerical simulations of compression using a unified cohesive model based on Voronoi polygons to clarify the multiscale mechanical behavior. …”
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