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5901
Extracting Vitabiotic Pharmaceutical Substances from Berry Raw Materials: Optimization of Processes
Published 2018-12-01“…The optical density indicator of extracts during extraction helped to establish the optimum parameters of the process: mash ratio – 1:15; ultrasonic exposure frequency – 22 kHz. The experiment determined the mass fraction of extractive substances and active components, as well as the values of extraction coefficients of the berry raw material. …”
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5902
Predicting Market Value of Iranian Football Players using Linear Modeling Techniques
Published 2021-03-01“…The statistical population of the present study included all Iranian and foreign players working in the Iranian Football Premier League, which totaled 409 people the appropriate sample size for the research was calculated based on the community sampling formula and at a 5% error level, 200 people were calculated descriptive statistics was used for analysis and multiple regression method was used for inferential analysis.Results: Results showed that there is a significant relationship between player valuation and age variables, goalkeeper position, midfielder position, striker position, individual awards, foot position and number of games therefore, it can be concluded that when evaluating, the mentioned factors should be considered to attract the desired players of the clubs in the transfer seasons.Conclusion: In general, it can be acknowledged that the estimated coefficients of this model have the necessary efficiency to determine the market value of professional football players in the Iranian league.…”
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5903
Optimizing Teacher Performance Through The Implementation Of Progressive Work Culture And Dynamic Leadership Styles
Published 2025-02-01“…The sample or respondents in this study amounted to 31 teachers. Data collection method using questionnaire. Data analysis uses data quality tests, classical assumption tests, multiple linear regression and hypothesis testing, namely coefficients of determination, t tests, and f test. …”
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5904
Skin hyperspectral imaging and machine learning to accurately predict the muscular poly-unsaturated fatty acids contents in fish
Published 2024-01-01“…With the spectral data processed with the SG, the RBF model achieved outstanding performance in predicting the EPA + DHA and PUFAs contents, yielding coefficients of determination (R2P) of 0.9914 and 0.9914, root mean square error (RMSE) of 0.3352 and 0.3346, and mean absolute error (MAE) of 0.2659 and 0.2660, respectively. …”
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5905
Automatic measurement of proximal femoral morphological parameters using point cloud semantic segmentation technology
Published 2025-04-01“…Based on these correspondences and femoral morphological features, automatically segment the test femur sample into the shaft, neck, and head. Numerical methods are used to determine the femoral shaft axis (using PCA combined with least-squares cylinder fitting), the femoral head center and radius (least-squares sphere fitting), as well as the eccentricity and femur length. …”
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5906
Direct Algorithm for Bernstein Enclosure Boundary of Polynomials
Published 2022-01-01“…To this end, we provide arithmetic operations and properties for obtaining a fast computational method of Bernstein coefficients. Furthermore, we give an algorithm for direct determination of the minimum and maximum Bernstein coefficients (enclosure boundary) in the simplicial multivariate case. …”
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5907
New Approaches to Studying Prevalence Gallstone Disease
Published 2020-07-01“…In portions “B” and “C” of bile obtained by multifractional duodenal sounding, the total concentration of bile acids, cholesterol and phospholipids was determined, and lithogenicity indices of bile were calculated: cholate-cholesterol and phospholipid-cholesterol coefficients. …”
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5908
Automatic delineation of cervical cancer target volumes in small samples based on multi-decoder and semi-supervised learning and clinical application
Published 2024-11-01“…The introduction of the MDSSL method successfully improved the accuracy of auto-segmentation for the cervical cancer target volume in small samples, showed good consistency with RO delineation and satisfied clinical requirements. …”
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5909
Research progress in the preparation and application of h-BN containing ceramics
Published 2025-06-01“…The fabrication of h-BN ceramics mainly relies on sintering, a critical final step in ceramic production that determines the ultimate performance of materials. However, the intrinsic properties of h-BN—characterized by strong covalent bonding, a high melting point, and a low solid-phase self-diffusion coefficient—present substantial challenges in achieving high-density sintered bodies. …”
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5910
Advanced Characterization of Vitreous Hyperreflective Dots via OCT-Derived Metrics: A Cross-Sectional Study
Published 2025-06-01“…Abstract Introduction The use of optical coherence tomography (OCT) as a potential tool for the measurement of vitreous inflammation has been previously described as a more objective and reproducible method when compared to historically known subjective scales. …”
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5911
Inversion algorithm of black carbon mixing state based on machine learning
Published 2025-03-01“…Our model achieves high accuracy for both particle size inversion and optical cross-section inversion of BC-containing particles, with a coefficient of determination <span class="inline-formula"><i>R</i><sup>2</sup></span> higher than 0.98. …”
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5912
Sesbania grandiflora activated carbon as a high-efficiency stable and reusable adsorbent for sustainable fluoride removal
Published 2025-04-01“…Adsorption followed the Freundlich isotherm (coefficient of determination is 0.9976), suggesting a multilayer heterogeneous adsorption process. …”
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5913
Contactless monitoring of respiratory rate (RR) and heart rate (HR) in non-acuity settings: a clinical validity study
Published 2022-12-01“…Contactless RR monitoring was linearly correlated with Alice NightOne and manual counts, presenting coefficients of determination of 0.88 and 0.90, respectively. …”
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5914
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5915
An Unsupervised Learning Approach for Coal Spontaneous Combustion Warning Level Classification Using t-SNE and k-Means Clustering
Published 2025-03-01“…The clustering results of the original data were compared with Principal Component Analysis (PCA) and Stochastic Neighbor Embedding (SNE) methods to determine coal spontaneous combustion warning levels. …”
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5916
Artificial intelligence-optimized shield parameters for soft ground tunneling in urban environment: A case study of Bangkok MRT Blue Line
Published 2025-10-01“…Using long short-term memory (LSTM) neural networks as predictive models, the results yield coefficient of determination (R2) values of 0.81 and 0.96, root mean square error (RMSE) values of 5.91 mm/min and 3.09 mm, and average bias factor values of 0.99 and 0.88 for the P and S predictive models, respectively, based on validation datasets. …”
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5917
Machine Learning Models for the Prediction of Wind Loads on Containerships
Published 2025-02-01“…The models showed satisfactory performance on an evaluation set, with high coefficients of determination. The models based on the gradient-boosted tree method slightly outperformed those based on the multilayer perceptron method, particularly in terms of mean absolute error. …”
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5918
Adsorption of Methylene Blue Dye onto Various Marine Sediments and Seagrass Biomass of <i>Posidonia oceanica</i> Species: Kinetics and Equilibrium Studies
Published 2025-05-01“…According to the experimental findings, phycoremediation by using <i>P. oceanica</i> can be characterized as an efficient method for the bioremediation of dye-polluted wastewater.…”
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5919
Use of Fourier transform infrared spectroscopy and chemometric analysis to predict the bacilloscopic index in the saliva of leprosy patients
Published 2025-04-01“…The PLS model with three latent variables and one OSC component obtained a coefficient of determination greater than 0.9999 in both the calibration and prediction sets. …”
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5920
Study on Suppression of Vortex-Induced Vibrations of a Rotating Cylinder with Dual Splitter Plates
Published 2025-05-01“…To investigate the suppression method for vortex-induced vibrations (VIV) of two-degree-of-freedom (2-DOF) rotating cylinders with dual splitter plates, numerical simulations are conducted at a Reynolds number of 200, a mass ratio of 2.6, and rotation ratio of 2. …”
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