Guangzhou Academy of Special Equipment Inspection and Testing

Corrosion and wear of four-ball pair in Lop Nur brine-contaminated barge gear oil

Purpose This study aims to investigate the corrosion and wear of the four-ball pair in gear oil contaminated by Lop Nur brine at varying concentrations (0–30,000 ppm). Design/methodology/approach Steel sheet corrosion tests and four-ball friction tests were conducted, with surfac...

Study on the explosion suppression efficiency and mechanism of modified dry water material in ammonia-hydrogen-air mixture

Ammonia-hydrogen mixture is a promising zero-carbon fuel, but its production, storage, transportation, and utilization processes carry significant explosion risks. This study aims to prepare modified dry water (KMDW) by compounding different potassium salts with melamine polyphos...

Study on vibration characteristics of shearer spiral drum and fatigue life prediction of cutting unit housing under multi-factor coupling

Severe vibration and fatigue damage of the cutting unit housing remain key problems in thin-coal-seam shearers because coal-rock heterogeneity, drum structure, and motion parameters jointly generate nonlinear, time-varying cutting loads. Because field tests cannot efficiently iso...

Object localization in images via fusion of SFM and YOLO

<title>Abstract</title> Along with the rapid development of computer vision, unmanned aerial vehicle (UAV) technology, and autonomous driving, the precise acquisition of coordinate information for captured objects in geospatial space has become a core requirement for numerous app...