Showing 901 - 920 results of 8,228 for search 'Linear sampling', query time: 0.13s Refine Results
  1. 901
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    Examination of organizational citizenship behavior influence on employee performance attainment: an empirical investigation by Temesgen Abebaw Wonda

    Published 2024-12-01
    “…To bridge this gap, the study employed a descriptive causal research design and a quantitative approach, using 228 employees as sample respondents. Stratified sampling was first applied to categorize employees based on their job positions, followed by simple random sampling to select respondents. …”
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  3. 903

    Seakeeping of Hydrofoil-Equipped Unmanned Surface VehicleBased on LQR and ZOA by Xinhua SHUI, Fuhai DUAN

    Published 2025-02-01
    “…To evaluate the seakeeping of a hydrofoil-equipped unmanned surface vessel(USV), a linear quadratic regulator(LQR) was adopted, and its parameters were optimized using the zebra optimization algorithm(ZOA), with the amplitudes of roll, pitch, and heave motions as key metrics. …”
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  4. 904
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    Modeling of the Geotechnical Properties of Soils Improved with Quarry Dust at Different Compaction Energies by Charles Nwaiwu, Francis Mbamalu, Obinna Ubani

    Published 2024-04-01
    “…The optimum moisture content (OMC) was generally reduced with increasing quarry dust content, but the trend varied with different samples. The UCS values showed no clear trend in the samples studied, and the result suggested that addition of quarry dust does not necessarily increase the UCS of all soil samples but can lead to loss of strength in some soils. …”
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  6. 906

    Itararé Group Sandstone as a Sustainable Alternative Material for Photon Radiation Shielding by Gabrielli W. Pietralla, Isonel S. Meneguzzo, Luiz F. Pires

    Published 2025-07-01
    “…Notably, the lowest photon energies (0.015 MeV and 0.1 MeV) displayed significant differences in photon attenuation, as indicated by linear and mass attenuation coefficients. This suggests that the chemical composition of the samples had a considerable impact on their shielding performance. …”
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  7. 907

    Novel Portable Device for Post Mortem Interval Estimation Using Vitreous Humor Analysis by Louise Lijcklama à Nijeholt, Michael Fleermann, Micky Breukers, Jaap Knotter, Steven Staal, Brigitte Bruijns

    Published 2025-04-01
    “…These samples were analyzed using the Fisic Medimate™ system to determine the K+/Na+ ratio. …”
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  8. 908

    Variant regression modeling of electricity production in the Russian Federation by S. I. Noskov, E. S. Popov, S. P. Seredkin, V. V. Tirskikh, V. D. Toropov

    Published 2023-05-01
    “…Observations are identified that correspond to the maximum and minimum extent to the linear model on the analyzed sample. The values of the contributions of the factors to the right parts of the models are calculated.Conclusion. …”
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  9. 909

    Multi‐Scale Analysis of Dispersive Scalar Transport Across Porous Media Under Globally Nonlinear Flow Conditions by Hamid Moghimi, Mohaddeseh Mousavi Nezhad, Alberto Guadagnini

    Published 2023-10-01
    “…Flow and transport processes are analyzed at pore‐scale and larger scales in well‐documented digital Beadpack and Bentheimer sandstone samples. Our simulations comprise linear (Darcy) and nonlinear (Forchheimer) flow regimes and consider a broad interval of values of Péclet number (ranging from 1 × 10−2–5 × 104). …”
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    Determination of Tacrolimus in Plasma by Paper Spray In-situ Mass Spectrometry Based on Multistage Fragmentation by Fei PAN, Shuang YANG, Zi-yu QU, Di ZHANG, Chun-xia WANG, Hong-bin ZHEN, Zi-hong YE, Xin-hua DAI, Xiang FANG, Hai-di JIANG, Jie XIE, You JIANG

    Published 2025-07-01
    “…In this study, a new multistage fragmentation method for the rapid detection of tacrolimus in plasma by paper spray in-situ mass spectrometry was established using an independently developed quadrupole-linear ion trap tandem mass spectrometry system. To minimize detection time, plasma samples were precipitated with an organic solvent containing an internal standard, and then the supernatant was aspirated for detection. …”
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    Long‐Term Observations of Galactic Cosmic Ray LET Spectra in Lunar Orbit by LRO/CRaTER by M. D. Looper, J. E. Mazur, J. B. Blake, H. E. Spence, N. A. Schwadron, J. K. Wilson, A. P. Jordan, C. Zeitlin, A. W. Case, J. C. Kasper, L. W. Townsend, T. J. Stubbs

    Published 2020-12-01
    “…From this vantage point, it samples the interplanetary energetic particle population outside the shielding of the Earth's magnetosphere. …”
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  16. 916

    Rapid diagnosis of latent and active pulmonary tuberculosis by autofluorescence spectroscopy of blood plasma combined with artificial neural network algorithm by Fengjiao Yue, Si Li, Lijuan Wu, Xuerong Chen, Jianhua Zhu

    Published 2024-12-01
    “…By optimizing the ANN structure and activation functions, the ANN three-classification model achieves average classification accuracy of 96.3 %, and the accuracy of healthy persons, latent TB infections and active TB patients are 100 %, 83.3 % and 97.5 %, respectively, which is much better than the results of traditional Principal component analysis (PCA) and Linear discriminant analysis (LDA) method. To the best of our knowledge, this is the first research work of differentiating latent, active pulmonary TB cases from healthy samples with autofluorescence spectroscopy. …”
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  17. 917

    Guided Reinforcement Learning with Twin Delayed Deep Deterministic Policy Gradient for a Rotary Flexible-Link System by Carlos Saldaña Enderica, José Ramon Llata, Carlos Torre-Ferrero

    Published 2025-05-01
    “…The approach integrates the twin delayed deep deterministic policy gradient (TD3) algorithm with a linear quadratic regulator (LQR) acting as a guiding controller during training. …”
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  18. 918

    Developing a reliable predictive model for the biodegradability index in industrial complex effluent by Sadegh Partani, Amin Arzhangi, Hamidreza Azari, Hamidreza Moheghi

    Published 2025-08-01
    “…A prediction model for BOD based on COD was found by analyzing important effluent quality variables using simple linear regression and a strong linear association (BOD = 0.433COD + 222) with R² = 0.94, MSE = 38,829, RMSE = 197.05 was obtained. …”
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  19. 919

    Improving forest above-ground biomass estimation using genetic-based feature selection from Sentinel-1 and Sentinel-2 data (case study of the Noor forest area in Iran) by Armin Moghimi, Ava Tavakoli Darestani, Nikrouz Mostofi, Mahdiyeh Fathi, Meisam Amani

    Published 2024-04-01
    “…Subsequently, GA was employed to select the most optimal features among them within both Random Forest (RF) and Multiple Linear Regression (MLR) models, leading to enhanced accuracy in the forest AGB estimation process. …”
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