Results 191 to 200 of about 13,222 (265)

Explainable hybrid stacking ensemble method for hard rock pillar stability prediction and engineering applications

open access: yesDeep Underground Science and Engineering, EarlyView.
This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang   +3 more
wiley   +1 more source

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

open access: yesDeep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan   +4 more
wiley   +1 more source

Mechanics and Failure Mechanisms of Rigid-Flexible 3D-Printed FRP Miura-<i>Ori</i> Structures. [PDF]

open access: yesMaterials (Basel)
Qiao Z   +9 more
europepmc   +1 more source

Analyses of Stress-State-Dependent Ductile Damage and Fracture Behavior of Zirconium. [PDF]

open access: yesMaterials (Basel)
Pan B   +5 more
europepmc   +1 more source

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