A shaft-rate electric field (SREF) is a weak characteristic signal generated by moving ships in the ocean, serving as a key physical feature in underwater target detection and identification. Based on the generation mechanism of shaft-frequency electric fields, the research progress of traditional detection and extraction methods was systematically reviewed. On this basis, the feasible paths for applying quantum technology in...

Parasitic infections pose a significant threat to the wild population of Southern catfish (Silurus meridionalis) in Dongting Lake, yet the specific pathogen identity and epidemiological drivers remain unclear. This study combined morphological assessment, 28S rDNA molecular identification, and Generalized Linear Models (GLM) to elucidate the infection dynamics and pathogenicity of trematodes. Molecular analysis confirmed the p...