Results 241 to 250 of about 755,631 (334)

Mechanism and Control of Deformation and Failure of Mining Roadway in Thick Coal Seams Under Close Range Goaf

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT In response to the problems of asymmetric deformation and failure caused by the close range and thick coal seam fully mechanized caving roadway, as well as the difficulty in ensuring the control effect of the roadway surrounding rock. Through numerical simulation and on‐site industrial experiments, combined with the geological conditions of a
Yupeng Shen   +3 more
wiley   +1 more source

Mod Tanh‐Activated Physical Neural Network MPPT Control Algorithm for Varying Irradiance Conditions

open access: yesEnergy Science &Engineering, EarlyView.
The proposed MPPT controller (CRT‐POA‐PID) is implemented to enhance power efficiency in the PV system. The beta‐distributed point estimation technique is used for mismatch factor correction, improving performance. Simulations show a 98.42% efficiency improvement, a 4.54 dB reduction in total harmonic distortion, and faster convergence compared to ANN ...
Khuong Nguyen‐Vinh   +2 more
wiley   +1 more source

Health State Assessment Method for Complex Systems Based on Correlation Decoupled Belief Rule Base

open access: yesEnergy Science &Engineering, EarlyView.
In engineering practice, complex systems are subject to noise, and correlations can exist between attributes. This correlation can have a through effect on the validity of equipment health state evaluation. This paper proposes a belief rule base model that considers the correlation of attributes, which effectively enhances the accuracy and robustness ...
Sulong Li   +3 more
wiley   +1 more source

Study on Surrounding Rock Control Technology of Gob‐Gob Roadway Driven by Fully Mechanized Caving With Large Mining Height and Small Coal Pillar in Extra Thick Coal Seam

open access: yesEnergy Science &Engineering, EarlyView.
The analysis showed that the roof rock beam fractured above the side of the 5 m small coal pillar due to the influence of an anticline structure, leading to the proposal of an asymmetric control mechanism. Grouting pillars and individual supports were used for support, and the technology was successfully applied in the field, meeting the production ...
Linjun Peng   +6 more
wiley   +1 more source

Secure cloud computing: leveraging GNN and leader K-means for intrusion detection optimization. [PDF]

open access: yesSci Rep
Dugyala R   +7 more
europepmc   +1 more source

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