The membranes surrounding the amniotic cavity are composed from amnion and chorion, tightly adherent layers which are composed of several cell types, including epithelial cells, trophoblasts cells and mesenchyme cells, embedded in a collagenous matrix.They retain amniotic fluid, secret substances into the amniotic fluid, as well as to the uterus an
Pine forests (Pinus tabulaeformis) have been in danger of defoliation by a caterpillar in the west Liaoning province of China for more than thirty years.This paper aims to assess and predict the degree of damage to pine forests by using remote sensing and ancillary data.Through regression analysis of the pine foliage remaining ratios of field plots
In the practical scenario of construction sites with extremely complicated working environment and numerous personnel, it is challenging to detect safety helmet wearing (SHW) in real time on the premise of ensuring high precision performance.In this paper, a novel SHW detection model on the basis of improved YOLOv3 (named CSYOLOv3) is presented to