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13941
Potential of Nonlinear Ultrasonic Indicators for Nondestructive Testing of Concrete
Published 2010-01-01“…In the context of stress monitoring in pre-stressed structures, we show that intense scattering can be applied to robustly determine velocity changes at progressively increasing applied stress using coda wave interferometry and thereby extract nonlinear coefficients. …”
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13942
Floor Failure Evolution Mechanism for a Fully Mechanized Longwall Mining Face above a Confined Aquifer
Published 2019-01-01“…The characteristics affecting floor crack development depth were analyzed by considering friction angle, cohesion force, floor pressure, stress increase coefficient, and peak position. A FLAC3D simulation was performed to compare the degrees of floor damage that occurred for caving and backfilling methods during the mining process. …”
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13943
The Influence of Microalgae Fertilizer on Soil Water Conservation and Soil Improvement: Yield and Quality of Potted Tomatoes
Published 2024-09-01“…Therefore, through comprehensive analysis, using the membership function method of indicators such as soil environment, crop yield, fruit quality and water-use efficiency, it is concluded that T2 is the optimal fertilization treatment. …”
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13944
The Contribution of Particle Swarm Optimization to Three-Dimensional Slope Stability Analysis
Published 2014-01-01“…The results demonstrated the efficiency and effectiveness of PSO in determining the CSS of 3D soil slopes.…”
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13945
Inter-rater and intra-rater reliability of the Chinese version of the short orientation–memory–concentration test in people with stroke
Published 2025-08-01“…PurposeThis study aimed to use three statistical methods to investigate the inter-rater and intra-rater reliability of the Chinese version of the Short Orientation-Memory-Concentration Test (C-SOMC) for people who have had a stroke.MethodsForty-four participants (31 men and 13 women) with a mean age of 59.05 ± 10.79 years who have had experienced a single episode of stroke were enrolled in this study. …”
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13946
Spatiotemporal dynamics and key drivers of carbon emissions in regional construction sectors: Insights from a Random Forest Model
Published 2025-03-01“…This research utilizes the Random Forest Model, a sophisticated machine learning method, to examine the determinants of carbon emissions in China's construction sector at the regional scale. …”
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13947
Modelo matemático y procedimiento para la generación gráfica de los contornos de dientes de engranajes cilíndricos. // A mathematical model and procedure for graphic generation of...
Published 2006-01-01“…Additionally,<br />the results are useful for the improvement of the gear tooth model and formulations for the load capacity calculation of cylindrical<br />gears by means of the method of finite elements. For the determination of the calculation procedures based on the mathematical<br />models was established using the technique of dichromatic graphs.…”
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13948
Investigação teórica do processo de redução de coliformes em leitos cultivados Theoretical investigation of coliform reduction in constructed wetland
Published 2007-12-01“…The results obtained with the simulation were compared with the reference values to determine the longitudinal dispersion coefficient value which leads to the least residual value for each kind of support bed. …”
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13949
Exploring the Causes of Severe Fluctuations in Water Surface Area Using Water Index and Structural Equation Modeling: Evidence from Ebinur Lake, China
Published 2025-04-01“…Utilizing Google Earth Engine (GEE), this study employs Landsat series, Sentinel 2, and MOD09GA/MYD09GA data to extract the water area of Ebinur Lake by applying indices such as NDWI, MNDWI, AWEI, and MAWEI. Threshold determination and shoreline refinement are achieved through Otsu’s method and the Canny algorithm, followed by a comparative analysis. …”
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13950
Glomerular diseases related to HIV in Colombian population: Better outcomes with highly active antiretroviral therapy?
Published 2020-09-01“…A longitudinal data model under the Generalized Estimating Equations (GEE) method was used to determine changes on the glomerular filtration rate (GFR) over time. …”
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13951
Análise espacial da umidade do solo cultivado com soja sob dois sistemas de manejo Spatial analysis of soil moisture with soybean under two management systems
Published 2007-06-01“…The data were used for analysis of moisture using the conventional gravimetric method. The data were analyzed through the classic statistics and geostatistics. …”
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13952
Análise da precipitação mensal provável para o município de Lages, SC Analysis of probable monthly rainfall in the municipality of Lages, SC
Published 2010-01-01“…The method of adjustment of model was used to estimate α and β parameters of gamma distribution, and Kolmogorov-Smirnov's test assessed the model's fitting to the data. …”
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13953
Remote Sensing Survey of Chlorophyll-a Concentration in River-Type Reservoirs Based on GF-1 Image Data: Taking Feilaixia–Changhu Reservoir Area as an Example
Published 2025-01-01“…The correlation analysis of the chlorophyll-a remote sensing inversion value and the measured value was performed, and the determination coefficient was R<sup>2 </sup>= 0.835 8; the result verification was reasonable. …”
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13954
Alpine Meadow Fractional Vegetation Cover Estimation Using UAV-Aided Sentinel-2 Imagery
Published 2025-07-01“…The DNN-based FVC estimation performed best, with a coefficient of determination of 0.82 and a root mean square error (RMSE) of 0.09. (2) In vegetation coverage estimation based on the pixel dichotomy model, different vegetation indices demonstrated varying performances across areas with different FVC levels. …”
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13955
Rainfall Prediction Using Integrated Machine Learning Models With K-Means Clustering: A Representative Case Study of Harirud Murghab Basin-Afghanistan
Published 2025-01-01“…The models were evaluated at three stations (Nazdik-i Herat, Shinya, and Torghundi) using coefficient of determination (R2), mean squared error (MSE), root mean squared error (RMSE), Mean absolute error (MAE), and median absolute error (MedAE) as evaluation metrics. …”
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13956
Electromechanical transmission of tracked machine energy characteristics study
Published 2021-03-01“…The latter fact makes it possible to ensure the operation of the power plant of the tracked vehicle in such a way as to avoid unfavorable operating modes of both the internal combustion engine and the elements of the electromechanical transmission (a generator, a traction electric motor, an energy storage) from the point of view of energy efficiency, and to realize the high efficiency of the entire system.Research methods. …”
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13957
Training Load and Current Soreness Predict Future Delayed Onset Muscle Soreness in Collegiate Female Soccer Athletes
Published 2023-12-01“…Linear mixed models revealed a significant interaction of all training load and current day's DOMS on the following day's DOMS (p\<0.001), but number of decelerations, HRmax, and total number of accelerations demonstrated the highest coefficient of determination (R^2^ marginal=33.2% - 29.2% , R^2^ conditional= 46.9% - 44.8%)…”
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13958
The Relationship between Mobile Phone Addiction and Changes in Spinal Column Angles of Male High School Students with Endomorphic Body Type
Published 2025-05-01“…Pearson and Spearman correlation coefficients were used to determine the relationship between variables, and the analyses were carried out at a 95% confidence level. …”
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13959
Arthroscopic synovectomy in rheumatoid synovitis of knee joint
Published 2009-08-01“…Value of this coefficient multiplication by the sum of the above mentioned measures was used to determine indications to AS. …”
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13960
Changes in the transcriptional activity of cell cycle regulator CDK1 and cell proliferation ki67 genes in invasive and non-invasive pancreatic ductal adenocarcinoma
Published 2016-08-01“…Materials and methods. The study was conducted on 20 samples of pancreatic tumor tissue taken at pathomorphological examination of the operational material. …”
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