Posttraumatic stress disorder (PTSD) is a complex, heterogeneous disorder that develops following trauma and often includes perceptual, cognitive, affective, physiological, and psychological features.PTSD is characterized by hyperarousal, intrusive thoughts, exaggerated startle response, flashbacks, nightmares, sleep disturbances, emotional numbnes
Back-end optimization is a key process to eliminate the cumulative error in Visual Simultaneous Localization and Mapping (VSLAM).Existing VSLAM frameworks often use kernel function-based back-end optimization methods.However, these methods typically rely on fixed kernel parameters based on the chi-square test, assuming Gaussian-distributed reprojec
This paper focuses on the failure mechanism of a water-resisting soil layer with both coal excavation and seepage effect.Being taken Automatic Coffee Machines the simulation principle of fluid-solid coupling as the research basis, we have established a new kind of experimental material for fluid-solid physical simulation (FPS).The material adopts r
The study and development of autonomous electric drive systems are relevant, since currently such systems are widespread especially Supports in the marine and river fleet industries.A simulation model of an autonomous frequency-controlled synchronous electric drive with vector control and active power circuit of an electric motor has been proposed.