Research on the activity of dry-discharge coal-fired slag of different particle sizes and their performance as precursors of alkali-activated backfilling cementitious materials

Environmental Research, Год журнала: 2025, Номер unknown, С. 121017 - 121017

Опубликована: Фев. 1, 2025

Язык: Английский

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FSS-YOLO: The Lightweight Drill Pipe Detection Method Based on YOLOv8n-obb

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

To achieve fast and accurate identification of drill pipes, we propose FSS-YOLO, which is a lightweight pipe detection method based on YOLOv8n-obb. This first introduces the FasterBlock module into C2f YOLOv8n-obb to reduce number model parameters decrease computational cost redundant feature maps. Next, SimAM attention mechanism added backbone network enhance weight important features in map improves model's extraction capability. In addition, using shared convolution optimize head, not only lightens head but also enhances its ability learn different scales, improving generalization ability. Finally, FSS-YOLO algorithm validated self-built dataset. The results show that compared with original algorithm, achieves improvements 5.1% mAP50 11.5% Recall, reduces by 45.8%, an inference speed 27.8ms/frame Jetson Orin NX. Additionally, visual for scenarios demonstrate improved has promising application prospects

Язык: Английский

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Degradation Characteristics of Coal Samples Under the Dry–Wet Cycle Action of Acidic, High-Salinity Solutions: Experimental Study and Fractal Analysis

Fractal and Fractional, Год журнала: 2025, Номер 9(4), С. 221 - 221

Опубликована: Апрель 1, 2025

Uniaxial compression tests were conducted on coal samples subjected to different dry–wet cycling treatments investigate the damage and degradation mechanisms of under cyclic action acidic, high-salinity solutions. The process was monitored in situ using acoustic emission (AE). evolution mechanical parameters macroscopic failure modes with number cycles analyzed. Based AE ringing parameters, RA-AF distribution fractal dimension’s variation characteristics studied. Additionally, scanning electron microscopy (SEM) used observe microstructure samples. results showed that increase cycles, both peak strength elastic modulus exhibited varying degrees degradation, mode gradually shifted from tensile shear failure. counts decreased progressively, while proportion cracks based classification increased. At same time, mean dimension increased, an counts. sharp drop dimensions could serve as early warning signal for a major Furthermore, influence solutions, defects such pores became more pronounced, effect continuously intensified.

Язык: Английский

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Effect of liquid nitrogen cold soaking on the pore structure and fractal characteristics during in situ leaching of sandstone uranium ores

Advanced Powder Technology, Год журнала: 2025, Номер 36(7), С. 104943 - 104943

Опубликована: Май 29, 2025

Язык: Английский

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