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Additive Manufacturing as an Alternative to Core Sampling in Concrete Strength Assessment
Published 2025-07-01“…Ordinary least-squares regression of the pooled data produced the linear relation <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mover accent="true"><mrow><mi>R</mi></mrow><mo>^</mo></mover></mrow><mrow><mi>c</mi><mi>o</mi><mi>r</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula> [MPa] = 0.97 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mover accent="true"><mrow><mi>R</mi></mrow><mo>^</mo></mover></mrow><mrow><mi>c</mi><mi>u</mi><mi>b</mi><mi>e</mi></mrow></msub></mrow></semantics></math></inline-formula> − 4.9, limiting the prediction error to less than 2 MPa (under 3% across the 40–300 MPa range) and outperforming more complex machine-learning models. …”
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Research of the present situation and development trend of intelligent coal mine construction market
Published 2024-11-01Get full text
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Research status and prospect of gas extraction in abandoned/closed coal mines in China
Published 2025-04-01Get full text
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Vegetation Cover Stratification of Different Land Uses on Loess Plateau
Published 2022-10-01Get full text
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Determination of Women's Fertility Awareness Levels and Influencing Factors
Published 2024-08-01Get full text
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Effect of Height on Pedestrian Route Choice between Stairs and Escalator
Published 2014-01-01Get full text
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