Showing 2,781 - 2,800 results of 3,983 for search 'Projective sampling', query time: 0.12s Refine Results
  1. 2781

    The Impact Of Public Procurement Law To The System Of Public Finance by RICHARD POSPISIL, PHILIPP KUNZ, ONDREJ KROCIL

    Published 2019-06-01
    “…The study relies on quantitative research design where data was collected from a sample of 130 participants who comprised of public procurement officials, private investors, and the public. …”
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    Article
  2. 2782
  3. 2783

    Research on 3D printing concrete mechanical properties prediction model based on machine learning by Yonghong Zhang, Suping Cui, Bohao Yang, Xinxin Wang, Tao Liu

    Published 2025-07-01
    “…The practical use of 3D printed concrete in engineering projects is strengthened by this work, which also opens up new avenues for investigation and highlights the enormous potential of machine learning to improve the prediction of mechanical properties of building materials.…”
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    Article
  4. 2784

    Comparing indigenous and scientific (Palin test) soil fertility assessment approaches for better soil health monitoring, management, and farm decision-making in Uganda by Sarah Elaete, John Ilukor, Rosemary Emegu Isoto, Alex Moruleng, Henry Nakelet Opolot

    Published 2025-05-01
    “…The extent of soil fertility misclassification and its correlates were also assessed from a sample of 461 input subsidy project beneficiaries in Uganda using descriptive statistics, a binary probit model, and a multivariate probit model. …”
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    Article
  5. 2785

    Experimental Study on Variation Law and Mechanism of Soil Shear Strength Parameters along the Slope by Yanhai Wang, Jianlin Li, Qiao Jiang, Yisheng Huang, Xinzhe Li

    Published 2019-01-01
    “…Under the action of rainwater seepage, geological origin, and human activities, the soil shear strength parameters will have spatial variability along the slope direction. After collecting samples of silty clay at a slope in the Three Gorges Reservoir area as the research object, not only the large-scale direct shear test was carried out on the site but also the direct shear test, water content test, density test, and particle grading analysis test were carried out in the laboratory with the undisturbed soil. …”
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    Article
  6. 2786

    A Daily Snow Cover Dataset for Central Eurasia During Autumn From 2004 to 2021 by Junshan Wang, Baofu Li, Yupeng Li, Lishu Lian, Fangshu Dong, Yanbing Zhu, Mengqiu Ma

    Published 2025-07-01
    “…The dataset exhibits high accuracy in forests, grassland, croplands and urban construction land, while accuracy is relatively lower in shrubland and barren due to fewer samples and low snow cover. This dataset significantly enhances snow and climate variability research, offering a robust foundation for climate change projections.…”
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  7. 2787

    Justification of the choice of excipients during the development of the composition of “Pastinocard” tablets by N. А. Symonenko, O. S. Shpychak, O. S. Kukhtenko, Ye. A. Bezrukavyi, H. B. Yurieva

    Published 2023-11-01
    “…Materials and methods. Experimental test samples of mixtures of the plant substance of domestic origin CPHTE with groups of excipients, approved for medical use, were used as the object of research. …”
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    Article
  8. 2788

    Recovery of End-of-Life Building Materials: Thermal Decomposition and Phase Transformation of Chrysotile in Asbestos-Containing Fiber Cement Boards by António Curado, Leonel J. R. Nunes, Arlete Carvalho, João Abrantes, Eduarda Lima, Mário Tomé

    Published 2025-05-01
    “…Using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD), we analyzed samples from end-of-life fiber cement panels, subjecting them to thermal treatments at 700 °C, 1000 °C, and 1200 °C. …”
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    Article
  9. 2789

    Raman‐Enabled Predictions of Protein Content and Metabolites in Biopharmaceutical Saccharomyces cerevisiae Fermentations by Jeppe Hagedorn, Guilherme Ramos, Miguel Ressurreição, Ernst Broberg Hansen, Michael Sokolov, Carlos Casado Vázquez, Christos Panos

    Published 2024-12-01
    “…In this study, we present an approach that mitigates this issue by deploying Raman spectroscopy on cell‐free media samples, combined with advanced chemometric modeling. …”
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    Article
  10. 2790

    Motivating residents to volunteer for urban waterway restoration: A segmentation approach by Zack Dorner, Lynette J. McLeod, Taciano L. Milfont, Philip Stahlmann‐Brown, Donald W. Hine, Robbie D. C. Maris, Jane C. Kitson, Natasha A. Tassell‐Matamua

    Published 2024-11-01
    “…We surveyed a representative sample of 1901 urban residents across Aotearoa New Zealand and used the Behaviour Change Wheel framework and audience segmentation to understand the underlying factors influencing volunteering for waterway restoration projects and to identify potential target audiences to recruit new volunteers. …”
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    Article
  11. 2791

    Design and Evaluation of Augmented Reality-Enhanced Robotic System for Epidural Interventions by Amir Sayadi, Renzo Cecere, Jake Barralet, Liane S. Feldman, Amir Hooshiar

    Published 2024-12-01
    “…However, further studies with larger sample sizes and more diverse clinical settings must comprehensively validate these findings. …”
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    Article
  12. 2792

    Land Cover Mapping Based on Multisource Spatial Data Mining Approach for Climate Simulation: A Case Study in the Farming-Pastoral Ecotone of North China by Feng Wu, Jinyan Zhan, Haiming Yan, Chenchen Shi, Juan Huang

    Published 2013-01-01
    “…Most attention has been paid to the influence of accuracy of the land cover data in numerous climate simulation projects. The accuracy of the temporal land use data from Chinese Academy of Sciences (CAS) is higher than 90%, but the high-precision land cover data is absent. …”
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  13. 2793

    Collaborative Superpixelwised PCA for Hyperspectral Image Classification by Chao Yao, Junrui Gu, Zehua Guo, Miao Ma, Qingrui Guo, Gong Cheng

    Published 2025-01-01
    “…Next, the mean vectors of samples within each superpixel are utilized to model the manifold structure of the data. …”
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    Article
  14. 2794

    Non-targeted Metabolomic Analysis of Differences in the Composition of Different Rice Varieties for Baijiu Production by LIU Maoke, TIAN Xinhui, LIU Yao, TANG Yuming, QIN Jian, FENG Jun, LIU Chengyuan

    Published 2024-12-01
    “…A total of 4 159 metabolites were detected in both rice samples, mainly including lipids and lipid-like molecules, organoheterocyclic compounds, organic acids and their derivatives. …”
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    Article
  15. 2795

    Zonation of the Vitis vinifera microbiome in Vino Nobile di Montepulciano PDO production area by Giorgia Palladino, Enrico Nanetti, Daniel Scicchitano, Nicolò Cinti, Lucia Foresto, Alice Cozzi, Antonio Gonzalez Vara Rodriguez, Nicolò Interino, Jessica Fiori, Silvia Turroni, Marco Candela, Simone Rampelli

    Published 2024-12-01
    “…Wine metabolomics was also perfomed, projecting compositional and functional variations of the microbial terroir at the AGUs level into a corresponding variation in the product metabolic profile. …”
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    Article
  16. 2796
  17. 2797

    Electrical Resistivity Tomography Methods and Technical Research for Hydrate-Based Carbon Sequestration by Zitian Lin, Qia Wang, Shufan Li, Xingru Li, Jiajie Ye, Yidi Zhang, Haoning Ye, Yangmin Kuang, Yanpeng Zheng

    Published 2025-06-01
    “…By designing single-target, dual-target, and multi-target hydrate samples, convolutional neural networks (CNNs), recurrent neural networks (RNNs), and residual neural networks (ResNets) were constructed and compared with traditional image reconstruction algorithms (e.g., back-projection) to quantitatively analyze ERT imaging accuracy. …”
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    Article
  18. 2798

    Discrimination and screening of volatile compounds in polygonati rhizoma and polygonati odorati rhizoma using GC-IMS and electronic nose combined with chemometric analysis by Yijun Song, Jialin Li, Tao Guo, Yuxin Feng, Zicheng Wang, Haozhe Liang, Juan Chen, Lingling Lv

    Published 2025-06-01
    “…The OPLS-DA results indicated that PR and POR samples had significant differences on VOCs characteristics, and based on the variable importance in projection (VIP>1.0) (P < 0.05), 16 VOCs were screened out as critical differential compounds through GC-IMS. …”
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    Article
  19. 2799

    Differences in the Volatile Components of Ninghong Black Tea Produced by the Ningzhou Tea Population and the Blending Varieties Based on HS-SPME-GC-MS by Caiting LIANG, Hua RONG, Lu XU, Yu RAO, Jun LI, Ting DENG, Xiangqun SHI, Yinxiang GAO

    Published 2025-07-01
    “…Seventy-nine volatile components were identified, with the composition and contents of volatile components differing among tea samples. Eight key differential substances (variable importance in projection (VIP) value>1 and P<0.05) were screened through orthogonal partial least squares-discriminant analysis (OPLS-DA) and VIP analysis. …”
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    Article
  20. 2800

    Fabrication and characterization of corn starch based bioplastic for packaging applications by Md. Arefin Kowser, Hanif Mahmud, Mohammad Asaduzzaman Chowdhury, Nayem Hossain, Juhi Jannat Mim, Safiul Islam

    Published 2025-03-01
    “…Corn starch with silver-based samples increased antimicrobial properties and showed a 44 % bacterial reduction rate against E. coli and 50 % against S. aureus. …”
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    Article