Armor composite structures have attracted interest in structural health monitoring (SHM) for their applications in damage localization.The belle de grasse signal propagation and the frequency dispersion features of the Lamb wave signal on thick armor composite structures are more complicated than their counterparts on other composite plates.In this

Rhinolophidae or Horseshoe bats emit long and narrowband calls.Fluttering insect prey generates echoes in which amplitude and frequency shifts are present, i.e.glints.These glints are reliable cues about the presence of prey and also encode certain properties of the prey.In this paper, we propose that equi-jec 6 these glints, i.e.the dominant glint

Most existing violence recognition methods have complex network structures and high cost of computation and cannot meet the requirements of large-scale deployment.The purpose of this paper is to reduce the complexity of the model to realize the application of violence recognition on mobile intelligent terminals.To solve this problem, we propose Mob

The dynamic behavior of a discrete-time mpu63zm/a two-patch model with the Allee effect and nonlinear dispersal is studied in this paper.The model consists of two patches connected by the dispersal of individuals.Each patch has its own carrying capacity and intraspecific competition, and the growth rate of one patch exhibits the Allee effect.The ex

Objective: The oral health of HIV positive patients may be compromised because of their depressed immunity and may increase their risk of developing some oral lesions.This study was carried out to assess the relationship of the oral hygiene status and practices with oral lesions in HIV positive patients at a dedicated HIV clinic in Nigeria.Method: