Results 171 to 180 of about 12,494 (295)

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

Solar‐driven co‐evolution of H2 and H2O2 from pure water splitting over emerging photocatalysts: Detailed mechanism and future outlook

PhotoMat, EarlyView., 2023
Photocatalytic water splitting for co‐evolution of H2 and H2O2 is deemed as a sustainable and promising strategy to address energy and environment issues, thus receiving increasing attention and realizing continuous achievements. This review aims to offer a deep understanding of the mechanism for H2 and H2O2 co‐evolution and the design principle of ...
Qiaohong Zhu, Jiaqi Wu, Mengmeng Du, Ning Zhang, Bocheng Qiu   +4 more
wiley   +1 more source

Evaluation of the Crushing Characteristics of Slate Coarse Aggregate Used for Asphalt Mixture. [PDF]

Materials (Basel)
Huang H, Zhu Y, Zhou K, Xiao Y, Mo L.
europepmc   +1 more source

A new strategy to simulate particle crushing in DEM analysis

, 2014
The discrete element method (DEM) is progressively gaining acceptance as a modelling tool for engineering problems of direct geotechnical relevance. One area for which the method seems naturally well adapted is that of crushable soils. Grain Crushing is generally modeled using the discrete element method (DEM) via two alternative methods: replacing the
Ciantia, Matteo Oryem, Arroyo Álvarez de Toledo, Marcos, Gens Solé, Antonio, Calvetti, Francesco   +3 more
openaire   +2 more sources

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Study on the effect of solid particle proppant on fracture support and flow conductivity in coal seam. [PDF]

Sci Rep
Zhang C, Chen Z, Zhang Z, Wu X, Ma J, Chen J.   +5 more
europepmc   +1 more source

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

Discrete element method parameter calibration and validation of wheat based on the Tavares model. [PDF]

PLoS One
Jia H, Feng B, Wu W, Yang K.
europepmc   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Optimization of Moving Cone Liner Dynamics and Health Status Prediction for Cone Crushers. [PDF]

Sensors (Basel)
Li M, Fu R, Wu D, Zhao L.
europepmc   +1 more source